Index: webkit/pending/FrameLoader.cpp |
=================================================================== |
--- webkit/pending/FrameLoader.cpp (revision 2884) |
+++ webkit/pending/FrameLoader.cpp (working copy) |
@@ -1,5186 +0,0 @@ |
-/* |
- * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. |
- * Copyright (C) 2007 Trolltech ASA |
- * |
- * Redistribution and use in source and binary forms, with or without |
- * modification, are permitted provided that the following conditions |
- * are met: |
- * |
- * 1. Redistributions of source code must retain the above copyright |
- * notice, this list of conditions and the following disclaimer. |
- * 2. Redistributions in binary form must reproduce the above copyright |
- * notice, this list of conditions and the following disclaimer in the |
- * documentation and/or other materials provided with the distribution. |
- * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
- * its contributors may be used to endorse or promote products derived |
- * from this software without specific prior written permission. |
- * |
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
- */ |
- |
-#include "config.h" |
-#include "FrameLoader.h" |
- |
-#include "Archive.h" |
-#include "ArchiveFactory.h" |
-#include "CString.h" |
-#include "Cache.h" |
-#include "CachedPage.h" |
-#include "Chrome.h" |
-#include "DOMImplementation.h" |
-#include "DOMWindow.h" |
-#include "DocLoader.h" |
-#include "Document.h" |
-#include "DocumentLoader.h" |
-#include "Editor.h" |
-#include "EditorClient.h" |
-#include "Element.h" |
-#include "Event.h" |
-#include "EventNames.h" |
-#include "FloatRect.h" |
-#include "FormState.h" |
-#include "Frame.h" |
-#include "FrameLoadRequest.h" |
-#include "FrameLoaderClient.h" |
-#include "FramePrivate.h" |
-#include "FrameTree.h" |
-#include "FrameView.h" |
-#include "HTMLFormElement.h" |
-#include "HTMLFrameElement.h" |
-#include "HTMLNames.h" |
-#include "HTMLObjectElement.h" |
-#include "HTTPParsers.h" |
-#include "HistoryItem.h" |
-#include "IconDatabase.h" |
-#include "IconLoader.h" |
-#include "InspectorController.h" |
-#include "Logging.h" |
-#include "MIMETypeRegistry.h" |
-#include "MainResourceLoader.h" |
-#include "Page.h" |
-#include "PageCache.h" |
-#include "PageGroup.h" |
-#include "PluginData.h" |
-#include "ProgressTracker.h" |
-#include "RenderPart.h" |
-#include "RenderWidget.h" |
-#include "RenderView.h" |
-#include "ResourceHandle.h" |
-#include "ResourceRequest.h" |
-#include "SecurityOrigin.h" |
-#include "SegmentedString.h" |
-#include "Settings.h" |
-#include "SystemTime.h" |
-#include "TextResourceDecoder.h" |
-#include "WindowFeatures.h" |
-#include "XMLHttpRequest.h" |
-#include "XMLTokenizer.h" |
-#include "ScriptController.h" |
- |
-#if USE(JSC) |
-#include "JSDOMBinding.h" |
-#include <kjs/JSObject.h> |
-#endif |
- |
-#if ENABLE(OFFLINE_WEB_APPLICATIONS) |
-#include "ApplicationCache.h" |
-#include "ApplicationCacheResource.h" |
-#endif |
- |
-#if ENABLE(SVG) |
-#include "SVGDocument.h" |
-#include "SVGLocatable.h" |
-#include "SVGNames.h" |
-#include "SVGPreserveAspectRatio.h" |
-#include "SVGSVGElement.h" |
-#include "SVGViewElement.h" |
-#include "SVGViewSpec.h" |
-#endif |
- |
-namespace WebCore { |
- |
-#if ENABLE(SVG) |
-using namespace SVGNames; |
-#endif |
-using namespace HTMLNames; |
-using namespace EventNames; |
- |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
-const unsigned int cMaxPendingSourceLengthInLowBandwidthDisplay = 128 * 1024; |
-#endif |
- |
-struct FormSubmission { |
- const char* action; |
- String url; |
- RefPtr<FormData> data; |
- String target; |
- String contentType; |
- String boundary; |
- RefPtr<Event> event; |
- |
- FormSubmission(const char* a, const String& u, PassRefPtr<FormData> d, const String& t, |
- const String& ct, const String& b, PassRefPtr<Event> e) |
- : action(a) |
- , url(u) |
- , data(d) |
- , target(t) |
- , contentType(ct) |
- , boundary(b) |
- , event(e) |
- { |
- } |
-}; |
- |
-struct ScheduledRedirection { |
- enum Type { redirection, locationChange, historyNavigation, locationChangeDuringLoad, reload }; |
- Type type; |
- double delay; |
- String url; |
- String referrer; |
- bool lockHistory; |
- bool wasUserGesture; |
- RefPtr<HistoryItem> historyItem; |
- |
- ScheduledRedirection(double redirectDelay, const String& redirectURL, bool redirectLockHistory, bool userGesture) |
- : type(redirection) |
- , delay(redirectDelay) |
- , url(redirectURL) |
- , lockHistory(redirectLockHistory) |
- , wasUserGesture(userGesture) |
- { |
- } |
- |
- ScheduledRedirection(Type locationChangeType, |
- const String& locationChangeURL, const String& locationChangeReferrer, |
- bool locationChangeLockHistory, bool locationChangeWasUserGesture) |
- : type(locationChangeType) |
- , delay(0) |
- , url(locationChangeURL) |
- , referrer(locationChangeReferrer) |
- , lockHistory(locationChangeLockHistory) |
- , wasUserGesture(locationChangeWasUserGesture) |
- { |
- } |
- |
- explicit ScheduledRedirection(HistoryItem* item) |
- : type(historyNavigation) |
- , delay(0) |
- , lockHistory(false) |
- , wasUserGesture(false) |
- , historyItem(item) |
- { |
- } |
-}; |
- |
-static double storedTimeOfLastCompletedLoad; |
-static FrameLoader::LocalLoadPolicy localLoadPolicy = FrameLoader::AllowLocalLoadsForLocalOnly; |
- |
-bool isBackForwardLoadType(FrameLoadType type) |
-{ |
- switch (type) { |
- case FrameLoadTypeStandard: |
- case FrameLoadTypeReload: |
- case FrameLoadTypeReloadAllowingStaleData: |
- case FrameLoadTypeSame: |
- case FrameLoadTypeRedirectWithLockedHistory: |
- case FrameLoadTypeReplace: |
- return false; |
- case FrameLoadTypeBack: |
- case FrameLoadTypeForward: |
- case FrameLoadTypeIndexedBackForward: |
- return true; |
- } |
- ASSERT_NOT_REACHED(); |
- return false; |
-} |
- |
-static int numRequests(Document* document) |
-{ |
- if (!document) |
- return 0; |
- |
- return document->docLoader()->requestCount(); |
-} |
- |
-FrameLoader::FrameLoader(Frame* frame, FrameLoaderClient* client) |
- : m_frame(frame) |
- , m_client(client) |
- , m_state(FrameStateCommittedPage) |
- , m_loadType(FrameLoadTypeStandard) |
- , m_policyLoadType(FrameLoadTypeStandard) |
- , m_delegateIsHandlingProvisionalLoadError(false) |
- , m_delegateIsDecidingNavigationPolicy(false) |
- , m_delegateIsHandlingUnimplementablePolicy(false) |
- , m_firstLayoutDone(false) |
- , m_quickRedirectComing(false) |
- , m_sentRedirectNotification(false) |
- , m_inStopAllLoaders(false) |
- , m_navigationDuringLoad(false) |
- , m_cachePolicy(CachePolicyVerify) |
- , m_isExecutingJavaScriptFormAction(false) |
- , m_isRunningScript(false) |
- , m_didCallImplicitClose(false) |
- , m_wasUnloadEventEmitted(false) |
- , m_isComplete(false) |
- , m_isLoadingMainResource(false) |
- , m_firingUnloadEvents(false) |
- , m_cancellingWithLoadInProgress(false) |
- , m_needsClear(false) |
- , m_receivedData(false) |
- , m_encodingWasChosenByUser(false) |
- , m_containsPlugIns(false) |
- , m_redirectionTimer(this, &FrameLoader::redirectionTimerFired) |
- , m_checkCompletedTimer(this, &FrameLoader::checkCompletedTimerFired) |
- , m_checkLoadCompleteTimer(this, &FrameLoader::checkLoadCompleteTimerFired) |
- , m_opener(0) |
- , m_openedByDOM(false) |
- , m_creatingInitialEmptyDocument(false) |
- , m_isDisplayingInitialEmptyDocument(false) |
- , m_committedFirstRealDocumentLoad(false) |
- , m_didPerformFirstNavigation(false) |
-#ifndef NDEBUG |
- , m_didDispatchDidCommitLoad(false) |
-#endif |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
- , m_useLowBandwidthDisplay(true) |
- , m_finishedParsingDuringLowBandwidthDisplay(false) |
- , m_needToSwitchOutLowBandwidthDisplay(false) |
-#endif |
-{ |
-} |
- |
-FrameLoader::~FrameLoader() |
-{ |
- setOpener(0); |
- |
- HashSet<Frame*>::iterator end = m_openedFrames.end(); |
- for (HashSet<Frame*>::iterator it = m_openedFrames.begin(); it != end; ++it) |
- (*it)->loader()->m_opener = 0; |
- |
- m_client->frameLoaderDestroyed(); |
-} |
- |
-void FrameLoader::init() |
-{ |
- // this somewhat odd set of steps is needed to give the frame an initial empty document |
- m_isDisplayingInitialEmptyDocument = false; |
- m_creatingInitialEmptyDocument = true; |
- setPolicyDocumentLoader(m_client->createDocumentLoader(ResourceRequest(String("")), SubstituteData()).get()); |
- setProvisionalDocumentLoader(m_policyDocumentLoader.get()); |
- setState(FrameStateProvisional); |
- m_provisionalDocumentLoader->setResponse(ResourceResponse(KURL(), "text/html", 0, String(), String())); |
- m_provisionalDocumentLoader->finishedLoading(); |
- begin(KURL(), false); |
- end(); |
- m_frame->document()->cancelParsing(); |
- m_creatingInitialEmptyDocument = false; |
- m_didCallImplicitClose = true; |
-} |
- |
-void FrameLoader::setDefersLoading(bool defers) |
-{ |
- if (m_documentLoader) |
- m_documentLoader->setDefersLoading(defers); |
- if (m_provisionalDocumentLoader) |
- m_provisionalDocumentLoader->setDefersLoading(defers); |
- if (m_policyDocumentLoader) |
- m_policyDocumentLoader->setDefersLoading(defers); |
-} |
- |
-Frame* FrameLoader::createWindow(FrameLoader* frameLoaderForFrameLookup, const FrameLoadRequest& request, const WindowFeatures& features, bool& created) |
-{ |
- ASSERT(!features.dialog || request.frameName().isEmpty()); |
- |
- if (!request.frameName().isEmpty() && request.frameName() != "_blank") { |
- Frame* frame = frameLoaderForFrameLookup->frame()->tree()->find(request.frameName()); |
- if (frame && shouldAllowNavigation(frame)) { |
- if (!request.resourceRequest().url().isEmpty()) |
- frame->loader()->loadFrameRequestWithFormAndValues(request, false, 0, 0, HashMap<String, String>()); |
- if (Page* page = frame->page()) |
- page->chrome()->focus(); |
- created = false; |
- return frame; |
- } |
- } |
- |
- // FIXME: Setting the referrer should be the caller's responsibility. |
- FrameLoadRequest requestWithReferrer = request; |
- requestWithReferrer.resourceRequest().setHTTPReferrer(m_outgoingReferrer); |
- |
- Page* oldPage = m_frame->page(); |
- if (!oldPage) |
- return 0; |
- |
- Page* page = oldPage->chrome()->createWindow(m_frame, requestWithReferrer, features); |
- if (!page) |
- return 0; |
- |
- Frame* frame = page->mainFrame(); |
- if (request.frameName() != "_blank") |
- frame->tree()->setName(request.frameName()); |
- |
- page->chrome()->setToolbarsVisible(features.toolBarVisible || features.locationBarVisible); |
- page->chrome()->setStatusbarVisible(features.statusBarVisible); |
- page->chrome()->setScrollbarsVisible(features.scrollbarsVisible); |
- page->chrome()->setMenubarVisible(features.menuBarVisible); |
- page->chrome()->setResizable(features.resizable); |
- |
- // 'x' and 'y' specify the location of the window, while 'width' and 'height' |
- // specify the size of the page. We can only resize the window, so |
- // adjust for the difference between the window size and the page size. |
- |
- FloatRect windowRect = page->chrome()->windowRect(); |
- FloatSize pageSize = page->chrome()->pageRect().size(); |
- if (features.xSet) |
- windowRect.setX(features.x); |
- if (features.ySet) |
- windowRect.setY(features.y); |
- if (features.widthSet) |
- windowRect.setWidth(features.width + (windowRect.width() - pageSize.width())); |
- if (features.heightSet) |
- windowRect.setHeight(features.height + (windowRect.height() - pageSize.height())); |
- page->chrome()->setWindowRect(windowRect); |
- |
- page->chrome()->show(); |
- |
- created = true; |
- return frame; |
-} |
- |
-bool FrameLoader::canHandleRequest(const ResourceRequest& request) |
-{ |
- return m_client->canHandleRequest(request); |
-} |
- |
-void FrameLoader::changeLocation(const String& url, const String& referrer, bool lockHistory, bool userGesture) |
-{ |
- // http://b/1082089 |
- // Hack to prevent FMW in WebCore::FrameLoader::checkNavigationPolicy. |
- // Without this, if the frame's javascript onload handler removes the frame, |
- // then once control returns into FrameLoader::checkNavigationPolicy (from |
- // the call to m_client->dispatchDecidePolicyForNavigationAction()), |
- // 'this' has been deallocated and we trash memory. |
- RefPtr<Frame> protector(m_frame); |
- |
- changeLocation(completeURL(url), referrer, lockHistory, userGesture); |
-} |
- |
- |
-void FrameLoader::changeLocation(const KURL& url, const String& referrer, bool lockHistory, bool userGesture) |
-{ |
- ResourceRequestCachePolicy policy = (m_cachePolicy == CachePolicyReload) || (m_cachePolicy == CachePolicyRefresh) |
- ? ReloadIgnoringCacheData : UseProtocolCachePolicy; |
- ResourceRequest request(url, referrer, policy); |
- |
- if (executeIfJavaScriptURL(request.url(), userGesture)) |
- return; |
- |
- urlSelected(request, "_self", 0, lockHistory, userGesture); |
-} |
- |
-void FrameLoader::urlSelected(const FrameLoadRequest& request, Event* event, bool lockHistory) |
-{ |
- FrameLoadRequest copy = request; |
- if (copy.resourceRequest().httpReferrer().isEmpty()) |
- copy.resourceRequest().setHTTPReferrer(m_outgoingReferrer); |
- |
- loadFrameRequestWithFormAndValues(copy, lockHistory, event, 0, HashMap<String, String>()); |
-} |
- |
-void FrameLoader::urlSelected(const ResourceRequest& request, const String& _target, Event* triggeringEvent, bool lockHistory, bool userGesture) |
-{ |
- if (executeIfJavaScriptURL(request.url(), userGesture, false)) |
- return; |
- |
- String target = _target; |
- if (target.isEmpty() && m_frame->document()) |
- target = m_frame->document()->baseTarget(); |
- |
- FrameLoadRequest frameRequest(request, target); |
- |
- urlSelected(frameRequest, triggeringEvent, lockHistory); |
-} |
- |
-bool FrameLoader::requestFrame(HTMLFrameOwnerElement* ownerElement, const String& urlString, const AtomicString& frameName) |
-{ |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
- // don't create sub-frame during low bandwidth display |
- if (frame()->document()->inLowBandwidthDisplay()) { |
- m_needToSwitchOutLowBandwidthDisplay = true; |
- return false; |
- } |
-#endif |
- |
- // Support for <frame src="javascript:string"> |
- KURL scriptURL; |
- KURL url; |
- if (protocolIs(urlString, "javascript")) { |
- scriptURL = KURL(urlString); |
- url = blankURL(); |
- } else |
- url = completeURL(urlString); |
- |
- Frame* frame = ownerElement->contentFrame(); |
- if (frame) |
- frame->loader()->scheduleLocationChange(url.string(), m_outgoingReferrer, true, userGestureHint()); |
- else |
- frame = loadSubframe(ownerElement, url, frameName, m_outgoingReferrer); |
- |
- if (!frame) |
- return false; |
- |
- if (!scriptURL.isEmpty()) |
- frame->loader()->executeIfJavaScriptURL(scriptURL); |
- |
- return true; |
-} |
- |
-Frame* FrameLoader::loadSubframe(HTMLFrameOwnerElement* ownerElement, const KURL& url, const String& name, const String& referrer) |
-{ |
- bool allowsScrolling = true; |
- int marginWidth = -1; |
- int marginHeight = -1; |
- if (ownerElement->hasTagName(frameTag) || ownerElement->hasTagName(iframeTag)) { |
- HTMLFrameElementBase* o = static_cast<HTMLFrameElementBase*>(ownerElement); |
- allowsScrolling = o->scrollingMode() != ScrollbarAlwaysOff; |
- marginWidth = o->getMarginWidth(); |
- marginHeight = o->getMarginHeight(); |
- } |
- |
- if (!canLoad(url, referrer)) { |
- FrameLoader::reportLocalLoadFailed(m_frame, url.string()); |
- return 0; |
- } |
- |
- bool hideReferrer = shouldHideReferrer(url, referrer); |
- RefPtr<Frame> frame = m_client->createFrame(url, name, ownerElement, hideReferrer ? String() : referrer, |
- allowsScrolling, marginWidth, marginHeight); |
- |
- if (!frame) { |
- checkCallImplicitClose(); |
- return 0; |
- } |
- |
- frame->loader()->m_isComplete = false; |
- |
- RenderObject* renderer = ownerElement->renderer(); |
- FrameView* view = frame->view(); |
- if (renderer && renderer->isWidget() && view) |
- static_cast<RenderWidget*>(renderer)->setWidget(view); |
- |
- checkCallImplicitClose(); |
- |
- // In these cases, the synchronous load would have finished |
- // before we could connect the signals, so make sure to send the |
- // completed() signal for the child by hand |
- // FIXME: In this case the Frame will have finished loading before |
- // it's being added to the child list. It would be a good idea to |
- // create the child first, then invoke the loader separately. |
- if (url.isEmpty() || url == blankURL()) { |
- frame->loader()->completed(); |
- frame->loader()->checkCompleted(); |
- } |
- |
- return frame.get(); |
-} |
- |
-void FrameLoader::submitFormAgain() |
-{ |
- if (m_isRunningScript) |
- return; |
- OwnPtr<FormSubmission> form(m_deferredFormSubmission.release()); |
- if (form) |
- submitForm(form->action, form->url, form->data, form->target, |
- form->contentType, form->boundary, form->event.get()); |
-} |
- |
-void FrameLoader::submitForm(const char* action, const String& url, PassRefPtr<FormData> formData, |
- const String& target, const String& contentType, const String& boundary, Event* event) |
-{ |
- ASSERT(formData); |
- |
- if (!m_frame->page()) |
- return; |
- |
- KURL u = completeURL(url.isNull() ? "" : url); |
- // FIXME: Do we really need to special-case an empty URL? |
- // Would it be better to just go on with the form submisson and let the I/O fail? |
- if (u.isEmpty()) |
- return; |
- |
- if (u.protocolIs("javascript")) { |
- m_isExecutingJavaScriptFormAction = true; |
- executeIfJavaScriptURL(u, false, false); |
- m_isExecutingJavaScriptFormAction = false; |
- return; |
- } |
- |
- if (m_isRunningScript) { |
- if (m_deferredFormSubmission) |
- return; |
- m_deferredFormSubmission.set(new FormSubmission(action, url, formData, target, |
- contentType, boundary, event)); |
- return; |
- } |
- |
- formData->generateFiles(m_frame->page()->chrome()->client()); |
- |
- FrameLoadRequest frameRequest; |
- |
- if (!m_outgoingReferrer.isEmpty()) |
- frameRequest.resourceRequest().setHTTPReferrer(m_outgoingReferrer); |
- |
- frameRequest.setFrameName(target.isEmpty() ? m_frame->document()->baseTarget() : target); |
- |
- // Handle mailto: forms |
- bool isMailtoForm = equalIgnoringCase(u.protocol(), "mailto"); |
- if (isMailtoForm && strcmp(action, "GET") != 0) { |
- // Append body= for POST mailto, replace the whole query string for GET one. |
- String body = formData->flattenToString(); |
- String query = u.query(); |
- if (!query.isEmpty()) |
- query.append('&'); |
- u.setQuery(query + body); |
- } |
- |
- if (strcmp(action, "GET") == 0) { |
- u.setQuery(formData->flattenToString()); |
- } else { |
- if (!isMailtoForm) |
- frameRequest.resourceRequest().setHTTPBody(formData.get()); |
- frameRequest.resourceRequest().setHTTPMethod("POST"); |
- |
- // construct some user headers if necessary |
- if (contentType.isNull() || contentType == "application/x-www-form-urlencoded") |
- frameRequest.resourceRequest().setHTTPContentType(contentType); |
- else // contentType must be "multipart/form-data" |
- frameRequest.resourceRequest().setHTTPContentType(contentType + "; boundary=" + boundary); |
- } |
- |
- frameRequest.resourceRequest().setURL(u); |
- |
- submitForm(frameRequest, event); |
-} |
- |
-void FrameLoader::stopLoading(bool sendUnload) |
-{ |
- if (m_frame->document() && m_frame->document()->tokenizer()) |
- m_frame->document()->tokenizer()->stopParsing(); |
- |
- if (sendUnload) { |
- if (m_frame->document()) { |
- if (m_didCallImplicitClose && !m_wasUnloadEventEmitted) { |
- Node* currentFocusedNode = m_frame->document()->focusedNode(); |
- if (currentFocusedNode) |
- currentFocusedNode->aboutToUnload(); |
- setFiringUnloadEvents(true); |
- m_frame->document()->dispatchWindowEvent(unloadEvent, false, false); |
- setFiringUnloadEvents(false); |
- if (m_frame->document()) |
- m_frame->document()->updateRendering(); |
- m_wasUnloadEventEmitted = true; |
- if (m_frame->eventHandler()->pendingFrameUnloadEventCount()) |
- m_frame->eventHandler()->clearPendingFrameUnloadEventCount(); |
- if (m_frame->eventHandler()->pendingFrameBeforeUnloadEventCount()) |
- m_frame->eventHandler()->clearPendingFrameBeforeUnloadEventCount(); |
- } |
- } |
- if (m_frame->document() && !m_frame->document()->inPageCache()) |
- m_frame->document()->removeAllEventListenersFromAllNodes(); |
- } |
- |
- m_isComplete = true; // to avoid calling completed() in finishedParsing() (David) |
- m_isLoadingMainResource = false; |
- m_didCallImplicitClose = true; // don't want that one either |
- m_cachePolicy = CachePolicyVerify; // Why here? |
- |
- if (m_frame->document() && m_frame->document()->parsing()) { |
- finishedParsing(); |
- m_frame->document()->setParsing(false); |
- } |
- |
- m_workingURL = KURL(); |
- |
- if (Document* doc = m_frame->document()) { |
- if (DocLoader* docLoader = doc->docLoader()) |
- cache()->loader()->cancelRequests(docLoader); |
- XMLHttpRequest::cancelRequests(doc); |
-#if ENABLE(DATABASE) |
-#endif |
- } |
- |
- // tell all subframes to stop as well |
- for (Frame* child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling()) |
- child->loader()->stopLoading(sendUnload); |
- |
- cancelRedirection(); |
- |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
- if (m_frame->document() && m_frame->document()->inLowBandwidthDisplay()) { |
- // Since loading is forced to stop, reset the state without really switching. |
- m_needToSwitchOutLowBandwidthDisplay = false; |
- switchOutLowBandwidthDisplayIfReady(); |
- } |
-#endif |
-} |
- |
-void FrameLoader::stop() |
-{ |
- // http://bugs.webkit.org/show_bug.cgi?id=10854 |
- // The frame's last ref may be removed and it will be deleted by checkCompleted(). |
- RefPtr<Frame> protector(m_frame); |
- |
- if (m_frame->document()) { |
- if (m_frame->document()->tokenizer()) |
- m_frame->document()->tokenizer()->stopParsing(); |
- m_frame->document()->finishParsing(); |
- } else |
- // WebKit partially uses WebCore when loading non-HTML docs. In these cases doc==nil, but |
- // WebCore is enough involved that we need to checkCompleted() in order for m_bComplete to |
- // become true. An example is when a subframe is a pure text doc, and that subframe is the |
- // last one to complete. |
- checkCompleted(); |
- if (m_iconLoader) |
- m_iconLoader->stopLoading(); |
-} |
- |
-bool FrameLoader::closeURL() |
-{ |
- saveDocumentState(); |
- stopLoading(true); |
- m_frame->editor()->clearUndoRedoOperations(); |
- return true; |
-} |
- |
-void FrameLoader::cancelRedirection(bool cancelWithLoadInProgress) |
-{ |
- m_cancellingWithLoadInProgress = cancelWithLoadInProgress; |
- |
- stopRedirectionTimer(); |
- |
- m_scheduledRedirection.clear(); |
-} |
- |
-KURL FrameLoader::iconURL() |
-{ |
- // If this isn't a top level frame, return nothing |
- if (m_frame->tree() && m_frame->tree()->parent()) |
- return KURL(); |
- |
- // If we have an iconURL from a Link element, return that |
- if (m_frame->document() && !m_frame->document()->iconURL().isEmpty()) |
- return KURL(m_frame->document()->iconURL()); |
- |
- // Don't return a favicon iconURL unless we're http or https |
- if (!m_URL.protocolIs("http") && !m_URL.protocolIs("https")) |
- return KURL(); |
- |
- KURL url; |
- url.setProtocol(m_URL.protocol()); |
- url.setHost(m_URL.host()); |
- if (int port = m_URL.port()) |
- url.setPort(port); |
- url.setPath("/favicon.ico"); |
- return url; |
-} |
- |
-bool FrameLoader::didOpenURL(const KURL& url) |
-{ |
- if (m_scheduledRedirection && m_scheduledRedirection->type == ScheduledRedirection::locationChangeDuringLoad) |
- // A redirect was scheduled before the document was created. |
- // This can happen when one frame changes another frame's location. |
- return false; |
- |
- cancelRedirection(); |
- m_frame->editor()->clearLastEditCommand(); |
- closeURL(); |
- |
- m_isComplete = false; |
- m_isLoadingMainResource = true; |
- m_didCallImplicitClose = false; |
- |
- m_frame->setJSStatusBarText(String()); |
- m_frame->setJSDefaultStatusBarText(String()); |
- |
- m_URL = url; |
- if ((m_URL.protocolIs("http") || m_URL.protocolIs("https")) && !m_URL.host().isEmpty() && m_URL.path().isEmpty()) |
- m_URL.setPath("/"); |
- m_workingURL = m_URL; |
- |
- started(); |
- |
- return true; |
-} |
- |
-void FrameLoader::didExplicitOpen() |
-{ |
- m_isComplete = false; |
- m_didCallImplicitClose = false; |
- |
- // Calling document.open counts as committing the first real document load. |
- m_committedFirstRealDocumentLoad = true; |
- |
- // Prevent window.open(url) -- eg window.open("about:blank") -- from blowing away results |
- // from a subsequent window.document.open / window.document.write call. |
- // Cancelling redirection here works for all cases because document.open |
- // implicitly precedes document.write. |
- cancelRedirection(); |
- if (m_frame->document()->url() != blankURL()) |
- m_URL = m_frame->document()->url(); |
-} |
- |
-bool FrameLoader::executeIfJavaScriptURL(const KURL& url, bool userGesture, bool replaceDocument) |
-{ |
- if (!url.protocolIs("javascript")) |
- return false; |
- |
- String script = decodeURLEscapeSequences(url.string().substring(strlen("javascript:"))); |
- |
- bool succ; |
- String scriptResult = executeScript(script, &succ, userGesture); |
- if (!succ) return true; |
- |
- SecurityOrigin* currentSecurityOrigin = 0; |
- if (m_frame->document()) |
- currentSecurityOrigin = m_frame->document()->securityOrigin(); |
- |
- // FIXME: We should always replace the document, but doing so |
- // synchronously can cause crashes: |
- // http://bugs.webkit.org/show_bug.cgi?id=16782 |
- if (replaceDocument) { |
- begin(m_URL, true, currentSecurityOrigin); |
- write(scriptResult); |
- end(); |
- } |
- |
- return true; |
-} |
- |
-void FrameLoader::executeScript(const String& url, int baseLine, const String& script) { |
- bool succ; |
- executeScript(url, baseLine, script, &succ); |
-} |
- |
-void FrameLoader::executeScript(const String& script, bool forceUserGesture) |
-{ |
- bool succ; |
- executeScript(forceUserGesture ? String() : m_URL.string(), 0, script, &succ); |
-} |
- |
-String FrameLoader::executeScript(const String& script, bool* succ, bool forceUserGesture) |
-{ |
- return executeScript(forceUserGesture ? String() : m_URL.string(), 1, script, succ); |
-} |
- |
-String FrameLoader::executeScript(const String& url, int baseLine, const String& script, bool* succ) |
-{ |
- *succ = false; |
- if (!m_frame->script()->isEnabled() || m_frame->script()->isPaused()) |
- return String(); |
- |
- bool wasRunningScript = m_isRunningScript; |
- m_isRunningScript = true; |
- |
- String result = m_frame->script()->evaluate(url, baseLine, script, 0, succ); |
- |
- if (!wasRunningScript) { |
- m_isRunningScript = false; |
- submitFormAgain(); |
- Document::updateDocumentsRendering(); |
- } |
- |
- return result; |
-} |
- |
-void FrameLoader::cancelAndClear() |
-{ |
- cancelRedirection(); |
- |
- if (!m_isComplete) |
- closeURL(); |
- |
- clear(false); |
-} |
- |
-void FrameLoader::clear(bool clearWindowProperties, bool clearScriptObjects) |
-{ |
- // FIXME: Commenting out the below line causes <http://bugs.webkit.org/show_bug.cgi?id=11212>, but putting it |
- // back causes a measurable performance regression which we will need to fix to restore the correct behavior |
- // urlsBridgeKnowsAbout.clear(); |
- |
- m_frame->editor()->clear(); |
- |
- if (!m_needsClear) |
- return; |
- m_needsClear = false; |
- |
- if (m_frame->document() && !m_frame->document()->inPageCache()) { |
- m_frame->document()->cancelParsing(); |
- if (m_frame->document()->attached()) { |
- m_frame->document()->willRemove(); |
- m_frame->document()->detach(); |
- |
- m_frame->document()->removeFocusedNodeOfSubtree(m_frame->document()); |
- } |
- } |
- |
- // Do this after detaching the document so that the unload event works. |
- if (clearWindowProperties) { |
- m_frame->clearDOMWindow(); |
- m_frame->script()->clearWindowShell(); |
- } |
- |
- m_frame->selection()->clear(); |
- m_frame->eventHandler()->clear(); |
- if (m_frame->view()) |
- m_frame->view()->clear(); |
- |
- m_frame->setSelectionGranularity(CharacterGranularity); |
- |
- // Do not drop the document before the ScriptController and view are cleared |
- // as some destructors might still try to access the document. |
- m_frame->setDocument(0); |
- m_decoder = 0; |
- |
- m_containsPlugIns = false; |
- |
- if (clearScriptObjects) |
- m_frame->script()->clearScriptObjects(); |
- |
- m_redirectionTimer.stop(); |
- m_scheduledRedirection.clear(); |
- |
- m_checkCompletedTimer.stop(); |
- m_checkLoadCompleteTimer.stop(); |
- |
- m_receivedData = false; |
- m_isDisplayingInitialEmptyDocument = false; |
- |
- if (!m_encodingWasChosenByUser) |
- m_encoding = String(); |
-} |
- |
-void FrameLoader::receivedFirstData() |
-{ |
- begin(m_workingURL, false); |
- |
- dispatchDidCommitLoad(); |
- dispatchWindowObjectAvailable(); |
- |
- String ptitle = m_documentLoader->title(); |
- // If we have a title let the WebView know about it. |
- if (!ptitle.isNull()) |
- m_client->dispatchDidReceiveTitle(ptitle); |
- |
- m_frame->document()->docLoader()->setCachePolicy(m_cachePolicy); |
- m_workingURL = KURL(); |
- |
- double delay; |
- String url; |
- if (!m_documentLoader) |
- return; |
- if (!parseHTTPRefresh(m_documentLoader->response().httpHeaderField("Refresh"), false, delay, url)) |
- return; |
- |
- if (url.isEmpty()) |
- url = m_URL.string(); |
- else |
- url = m_frame->document()->completeURL(url).string(); |
- |
- scheduleHTTPRedirection(delay, url); |
-} |
- |
-const String& FrameLoader::responseMIMEType() const |
-{ |
- return m_responseMIMEType; |
-} |
- |
-void FrameLoader::setResponseMIMEType(const String& type) |
-{ |
- m_responseMIMEType = type; |
-} |
- |
-void FrameLoader::begin() |
-{ |
- begin(KURL()); |
-} |
- |
-void FrameLoader::begin(const KURL& url, bool dispatch, SecurityOrigin* origin) |
-{ |
- // We need to take a reference to the security origin because |clear| |
- // might destroy the document that owns it. |
- RefPtr<SecurityOrigin> forcedSecurityOrigin = origin; |
- |
- bool resetScripting = !(m_isDisplayingInitialEmptyDocument && m_frame->document() && m_frame->document()->securityOrigin()->isSecureTransitionTo(url)); |
- clear(resetScripting, resetScripting); |
- if (dispatch) |
- dispatchWindowObjectAvailable(); |
- |
- m_needsClear = true; |
- m_isComplete = false; |
- m_didCallImplicitClose = false; |
- m_isLoadingMainResource = true; |
- m_isDisplayingInitialEmptyDocument = m_creatingInitialEmptyDocument; |
- |
- KURL ref(url); |
- ref.setUser(String()); |
- ref.setPass(String()); |
- ref.setRef(String()); |
- m_outgoingReferrer = ref.string(); |
- m_URL = url; |
- |
- RefPtr<Document> document = DOMImplementation::createDocument(m_responseMIMEType, m_frame, m_frame->inViewSourceMode()); |
- m_frame->setDocument(document); |
- |
- document->setURL(m_URL); |
- if (m_decoder) |
- document->setDecoder(m_decoder.get()); |
- if (forcedSecurityOrigin) |
- document->setSecurityOrigin(forcedSecurityOrigin.get()); |
- |
- m_frame->domWindow()->setURL(document->url()); |
- m_frame->domWindow()->setSecurityOrigin(document->securityOrigin()); |
- |
- updatePolicyBaseURL(); |
- |
- Settings* settings = document->settings(); |
- document->docLoader()->setAutoLoadImages(settings && settings->loadsImagesAutomatically()); |
- |
- if (m_documentLoader) { |
- String dnsPrefetchControl = m_documentLoader->response().httpHeaderField("X-DNS-Prefetch-Control"); |
- if (!dnsPrefetchControl.isEmpty()) |
- document->setDNSPrefetchControl(dnsPrefetchControl); |
- } |
- |
-#if FRAME_LOADS_USER_STYLESHEET |
- KURL userStyleSheet = settings ? settings->userStyleSheetLocation() : KURL(); |
- if (!userStyleSheet.isEmpty()) |
- m_frame->setUserStyleSheetLocation(userStyleSheet); |
-#endif |
- |
- restoreDocumentState(); |
- |
- document->implicitOpen(); |
- |
- if (m_frame->view()) |
- m_frame->view()->resizeContents(0, 0); |
- |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
- // Low bandwidth display is a first pass display without external resources |
- // used to give an instant visual feedback. We currently only enable it for |
- // HTML documents in the top frame. |
- if (document->isHTMLDocument() && !m_frame->tree()->parent() && m_useLowBandwidthDisplay) { |
- m_pendingSourceInLowBandwidthDisplay = String(); |
- m_finishedParsingDuringLowBandwidthDisplay = false; |
- m_needToSwitchOutLowBandwidthDisplay = false; |
- document->setLowBandwidthDisplay(true); |
- } |
-#endif |
-} |
- |
-void FrameLoader::write(const char* str, int len, bool flush) |
-{ |
- if (len == 0 && !flush) |
- return; |
- |
- if (len == -1) |
- len = strlen(str); |
- |
- Tokenizer* tokenizer = m_frame->document()->tokenizer(); |
- if (tokenizer && tokenizer->wantsRawData()) { |
- if (len > 0) |
- tokenizer->writeRawData(str, len); |
- return; |
- } |
- |
- if (!m_decoder) { |
- Settings* settings = m_frame->settings(); |
- if (settings) { |
- TextResourceDecoder* hintDecoder = NULL; |
- Frame* parentFrame = m_frame->tree()->parent(); |
- if (parentFrame && parentFrame->document()) |
- hintDecoder = parentFrame->document()->decoder(); |
- m_decoder = TextResourceDecoder::create(m_responseMIMEType, settings->defaultTextEncodingName(), settings->usesEncodingDetector(), hintDecoder); |
- } else |
- m_decoder = TextResourceDecoder::create(m_responseMIMEType, String()); |
- if (m_encoding.isEmpty()) { |
- Frame* parentFrame = m_frame->tree()->parent(); |
- // TODO(jungshik) : We might as well consider allowing inheriting charset |
- // from parent even if canAccess returns false as long as the parent charset |
- // is regarded as safe (that is, it's not UTF-7/ISO-2022-XX/HZ), of which |
- // we're not yet sure. |
- if (parentFrame && parentFrame->document()->securityOrigin()->canAccess(m_frame->document()->securityOrigin())) |
- m_decoder->setEncoding(parentFrame->document()->inputEncoding(), TextResourceDecoder::EncodingFromParentFrame); |
- } else { |
- m_decoder->setEncoding(m_encoding, |
- m_encodingWasChosenByUser ? TextResourceDecoder::UserChosenEncoding : TextResourceDecoder::EncodingFromHTTPHeader); |
- } |
- m_frame->document()->setDecoder(m_decoder.get()); |
- } |
- |
- String decoded = m_decoder->decode(str, len); |
- if (flush) |
- decoded += m_decoder->flush(); |
- if (decoded.isEmpty()) |
- return; |
- |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
- if (m_frame->document()->inLowBandwidthDisplay()) |
- m_pendingSourceInLowBandwidthDisplay.append(decoded); |
- else // reset policy which is changed in switchOutLowBandwidthDisplayIfReady() |
- m_frame->document()->docLoader()->setCachePolicy(m_cachePolicy); |
-#endif |
- |
- if (!m_receivedData) { |
- m_receivedData = true; |
- if (m_decoder->encoding().usesVisualOrdering()) |
- m_frame->document()->setVisuallyOrdered(); |
- m_frame->document()->recalcStyle(Node::Force); |
- } |
- |
- if (tokenizer) { |
- ASSERT(!tokenizer->wantsRawData()); |
- tokenizer->write(decoded, true); |
- } |
-} |
- |
-void FrameLoader::write(const String& str) |
-{ |
- if (str.isNull()) |
- return; |
- |
- if (!m_receivedData) { |
- m_receivedData = true; |
- m_frame->document()->setParseMode(Document::Strict); |
- } |
- |
- if (Tokenizer* tokenizer = m_frame->document()->tokenizer()) |
- tokenizer->write(str, true); |
-} |
- |
-void FrameLoader::end() |
-{ |
- m_isLoadingMainResource = false; |
- endIfNotLoadingMainResource(); |
-} |
- |
-void FrameLoader::endIfNotLoadingMainResource() |
-{ |
- if (m_isLoadingMainResource || !m_frame->page()) |
- return; |
- |
- // http://bugs.webkit.org/show_bug.cgi?id=10854 |
- // The frame's last ref may be removed and it can be deleted by checkCompleted(), |
- // so we'll add a protective refcount |
- RefPtr<Frame> protector(m_frame); |
- |
- // make sure nothing's left in there |
- if (m_frame->document()) { |
- write(0, 0, true); |
- m_frame->document()->finishParsing(); |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
- if (m_frame->document()->inLowBandwidthDisplay()) { |
- m_finishedParsingDuringLowBandwidthDisplay = true; |
- switchOutLowBandwidthDisplayIfReady(); |
- } |
-#endif |
- } else |
- // WebKit partially uses WebCore when loading non-HTML docs. In these cases doc==nil, but |
- // WebCore is enough involved that we need to checkCompleted() in order for m_bComplete to |
- // become true. An example is when a subframe is a pure text doc, and that subframe is the |
- // last one to complete. |
- checkCompleted(); |
-} |
- |
-void FrameLoader::iconLoadDecisionAvailable() |
-{ |
- if (!m_mayLoadIconLater) |
- return; |
- LOG(IconDatabase, "FrameLoader %p was told a load decision is available for its icon", this); |
- startIconLoader(); |
- m_mayLoadIconLater = false; |
-} |
- |
-void FrameLoader::startIconLoader() |
-{ |
- // FIXME: We kick off the icon loader when the frame is done receiving its main resource. |
- // But we should instead do it when we're done parsing the head element. |
- if (!isLoadingMainFrame()) |
- return; |
- |
- if (!iconDatabase() || !iconDatabase()->isEnabled()) |
- return; |
- |
- KURL url(iconURL()); |
- String urlString(url.string()); |
- if (urlString.isEmpty()) |
- return; |
- |
- // If we're not reloading and the icon database doesn't say to load now then bail before we actually start the load |
- if (loadType() != FrameLoadTypeReload) { |
- IconLoadDecision decision = iconDatabase()->loadDecisionForIconURL(urlString, m_documentLoader.get()); |
- if (decision == IconLoadNo) { |
- LOG(IconDatabase, "FrameLoader::startIconLoader() - Told not to load this icon, committing iconURL %s to database for pageURL mapping", urlString.ascii().data()); |
- commitIconURLToIconDatabase(url); |
- |
- // We were told not to load this icon - that means this icon is already known by the database |
- // If the icon data hasn't been read in from disk yet, kick off the read of the icon from the database to make sure someone |
- // has done it. This is after registering for the notification so the WebView can call the appropriate delegate method. |
- // Otherwise if the icon data *is* available, notify the delegate |
- if (!iconDatabase()->iconDataKnownForIconURL(urlString)) { |
- LOG(IconDatabase, "Told not to load icon %s but icon data is not yet available - registering for notification and requesting load from disk", urlString.ascii().data()); |
- m_client->registerForIconNotification(); |
- iconDatabase()->iconForPageURL(m_URL.string(), IntSize(0, 0)); |
- iconDatabase()->iconForPageURL(originalRequestURL().string(), IntSize(0, 0)); |
- } else |
- m_client->dispatchDidReceiveIcon(); |
- |
- return; |
- } |
- |
- if (decision == IconLoadUnknown) { |
- // In this case, we may end up loading the icon later, but we still want to commit the icon url mapping to the database |
- // just in case we don't end up loading later - if we commit the mapping a second time after the load, that's no big deal |
- // We also tell the client to register for the notification that the icon is received now so it isn't missed in case the |
- // icon is later read in from disk |
- LOG(IconDatabase, "FrameLoader %p might load icon %s later", this, urlString.ascii().data()); |
- m_mayLoadIconLater = true; |
- m_client->registerForIconNotification(); |
- commitIconURLToIconDatabase(url); |
- return; |
- } |
- } |
- |
- // This is either a reload or the icon database said "yes, load the icon", so kick off the load! |
- if (!m_iconLoader) |
- m_iconLoader.set(IconLoader::create(m_frame).release()); |
- |
- m_iconLoader->startLoading(); |
-} |
- |
-void FrameLoader::setLocalLoadPolicy(LocalLoadPolicy policy) |
-{ |
- localLoadPolicy = policy; |
-} |
- |
-bool FrameLoader::restrictAccessToLocal() |
-{ |
- return localLoadPolicy != FrameLoader::AllowLocalLoadsForAll; |
-} |
- |
-bool FrameLoader::allowSubstituteDataAccessToLocal() |
-{ |
- return localLoadPolicy != FrameLoader::AllowLocalLoadsForLocalOnly; |
-} |
- |
-static HashSet<String, CaseFoldingHash>& localSchemes() |
-{ |
- static HashSet<String, CaseFoldingHash> localSchemes; |
- |
- if (localSchemes.isEmpty()) { |
- localSchemes.add("file"); |
- localSchemes.add("chrome-resource"); |
-#if PLATFORM(MAC) |
- localSchemes.add("applewebdata"); |
-#endif |
-#if PLATFORM(QT) |
- localSchemes.add("qrc"); |
-#endif |
- } |
- |
- return localSchemes; |
-} |
- |
-void FrameLoader::commitIconURLToIconDatabase(const KURL& icon) |
-{ |
- ASSERT(iconDatabase()); |
- LOG(IconDatabase, "Committing iconURL %s to database for pageURLs %s and %s", icon.string().ascii().data(), m_URL.string().ascii().data(), originalRequestURL().string().ascii().data()); |
- iconDatabase()->setIconURLForPageURL(icon.string(), m_URL.string()); |
- iconDatabase()->setIconURLForPageURL(icon.string(), originalRequestURL().string()); |
-} |
- |
-void FrameLoader::restoreDocumentState() |
-{ |
- Document* doc = m_frame->document(); |
- if (!doc) |
- return; |
- |
- HistoryItem* itemToRestore = 0; |
- |
- switch (loadType()) { |
- case FrameLoadTypeReload: |
- case FrameLoadTypeReloadAllowingStaleData: |
- case FrameLoadTypeSame: |
- case FrameLoadTypeReplace: |
- break; |
- case FrameLoadTypeBack: |
- case FrameLoadTypeForward: |
- case FrameLoadTypeIndexedBackForward: |
- case FrameLoadTypeRedirectWithLockedHistory: |
- case FrameLoadTypeStandard: |
- itemToRestore = m_currentHistoryItem.get(); |
- } |
- |
- if (!itemToRestore) |
- return; |
- |
- doc->setStateForNewFormElements(itemToRestore->documentState()); |
-} |
- |
-void FrameLoader::gotoAnchor() |
-{ |
- // If our URL has no ref, then we have no place we need to jump to. |
- // OTOH If CSS target was set previously, we want to set it to 0, recalc |
- // and possibly repaint because :target pseudo class may have been |
- // set (see bug 11321). |
- if (!m_URL.hasRef() && !(m_frame->document() && m_frame->document()->getCSSTarget())) |
- return; |
- |
- String ref = m_URL.ref(); |
- if (gotoAnchor(ref)) |
- return; |
- |
- // Try again after decoding the ref, based on the document's encoding. |
- if (m_decoder) |
- gotoAnchor(decodeURLEscapeSequences(ref, m_decoder->encoding())); |
-} |
- |
-void FrameLoader::finishedParsing() |
-{ |
- if (m_creatingInitialEmptyDocument) |
- return; |
- |
- // This can be called from the Frame's destructor, in which case we shouldn't protect ourselves |
- // because doing so will cause us to re-enter the destructor when protector goes out of scope. |
- // Null-checking the FrameView indicates whether or not we're in the destructor. |
- RefPtr<Frame> protector = m_frame->view() ? m_frame : 0; |
- |
- checkCompleted(); |
- |
- if (!m_frame->view()) |
- return; // We are being destroyed by something checkCompleted called. |
- |
- // Check if the scrollbars are really needed for the content. |
- // If not, remove them, relayout, and repaint. |
- m_frame->view()->restoreScrollbar(); |
- |
- m_client->dispatchDidFinishDocumentLoad(); |
- |
- gotoAnchor(); |
-} |
- |
-void FrameLoader::loadDone() |
-{ |
- if (m_frame->document()) |
- checkCompleted(); |
-} |
- |
-void FrameLoader::checkCompleted() |
-{ |
- // Any frame that hasn't completed yet? |
- for (Frame* child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling()) |
- if (!child->loader()->m_isComplete) |
- return; |
- |
- // Have we completed before? |
- if (m_isComplete) |
- return; |
- |
- // Are we still parsing? |
- if (m_frame->document() && m_frame->document()->parsing()) |
- return; |
- |
- // Still waiting for images/scripts? |
- if (m_frame->document()) |
- if (numRequests(m_frame->document())) |
- return; |
- |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
- // as switch will be called, don't complete yet |
- if (m_frame->document() && m_frame->document()->inLowBandwidthDisplay() && m_needToSwitchOutLowBandwidthDisplay) |
- return; |
-#endif |
- |
- // OK, completed. |
- m_isComplete = true; |
- |
- RefPtr<Frame> protect(m_frame); |
- checkCallImplicitClose(); // if we didn't do it before |
- |
- // Do not start a redirection timer for subframes here. |
- // That is deferred until the parent is completed. |
- if (m_scheduledRedirection && !m_frame->tree()->parent()) |
- startRedirectionTimer(); |
- |
- completed(); |
- if (m_frame->page()) |
- checkLoadComplete(); |
-} |
- |
-void FrameLoader::checkCompletedTimerFired(Timer<FrameLoader>*) |
-{ |
- checkCompleted(); |
-} |
- |
-void FrameLoader::scheduleCheckCompleted() |
-{ |
- if (!m_checkCompletedTimer.isActive()) |
- m_checkCompletedTimer.startOneShot(0); |
-} |
- |
-void FrameLoader::checkLoadCompleteTimerFired(Timer<FrameLoader>*) |
-{ |
- if (!m_frame->page()) |
- return; |
- checkLoadComplete(); |
-} |
- |
-void FrameLoader::scheduleCheckLoadComplete() |
-{ |
- if (!m_checkLoadCompleteTimer.isActive()) |
- m_checkLoadCompleteTimer.startOneShot(0); |
-} |
- |
-void FrameLoader::checkCallImplicitClose() |
-{ |
- if (m_didCallImplicitClose || !m_frame->document() || m_frame->document()->parsing()) |
- return; |
- |
- for (Frame* child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling()) |
- if (!child->loader()->m_isComplete) // still got a frame running -> too early |
- return; |
- |
- m_didCallImplicitClose = true; |
- m_wasUnloadEventEmitted = false; |
- if (m_frame->document()) |
- m_frame->document()->implicitClose(); |
-} |
- |
-KURL FrameLoader::baseURL() const |
-{ |
- ASSERT(m_frame->document()); |
- return m_frame->document()->baseURL(); |
-} |
- |
-String FrameLoader::baseTarget() const |
-{ |
- ASSERT(m_frame->document()); |
- return m_frame->document()->baseTarget(); |
-} |
- |
-KURL FrameLoader::completeURL(const String& url) |
-{ |
- ASSERT(m_frame->document()); |
- return m_frame->document()->completeURL(url); |
-} |
- |
-void FrameLoader::scheduleHTTPRedirection(double delay, const String& url) |
-{ |
- if (delay < 0 || delay > INT_MAX / 1000) |
- return; |
- |
- if (!m_frame->page()) |
- return; |
- |
- // We want a new history item if the refresh timeout is > 1 second. |
- if (!m_scheduledRedirection || delay <= m_scheduledRedirection->delay) |
- scheduleRedirection(new ScheduledRedirection(delay, url, delay <= 1, false)); |
-} |
- |
-void FrameLoader::scheduleLocationChange(const String& url, const String& referrer, bool lockHistory, bool wasUserGesture) |
-{ |
- if (!m_frame->page()) |
- return; |
- |
- // If the URL we're going to navigate to is the same as the current one, except for the |
- // fragment part, we don't need to schedule the location change. |
- KURL parsedURL(url); |
- if (parsedURL.hasRef() && equalIgnoringRef(m_URL, parsedURL)) { |
- changeLocation(url, referrer, lockHistory, wasUserGesture); |
- return; |
- } |
- |
- // Handle a location change of a page with no document as a special case. |
- // This may happen when a frame changes the location of another frame. |
- bool duringLoad = !m_committedFirstRealDocumentLoad; |
- |
- // If a redirect was scheduled during a load, then stop the current load. |
- // Otherwise when the current load transitions from a provisional to a |
- // committed state, pending redirects may be cancelled. |
- if (duringLoad) { |
- if (m_provisionalDocumentLoader) |
- m_provisionalDocumentLoader->stopLoading(); |
- stopLoading(true); |
- } |
- |
- ScheduledRedirection::Type type = duringLoad |
- ? ScheduledRedirection::locationChangeDuringLoad : ScheduledRedirection::locationChange; |
- scheduleRedirection(new ScheduledRedirection(type, url, referrer, lockHistory, wasUserGesture)); |
-} |
- |
-void FrameLoader::scheduleRefresh(bool wasUserGesture) |
-{ |
- if (!m_frame->page()) |
- return; |
- |
- // Handle a location change of a page with no document as a special case. |
- // This may happen when a frame requests a refresh of another frame. |
- bool duringLoad = !m_frame->document(); |
- |
- // If a refresh was scheduled during a load, then stop the current load. |
- // Otherwise when the current load transitions from a provisional to a |
- // committed state, pending redirects may be cancelled. |
- if (duringLoad) |
- stopLoading(true); |
- |
- ScheduledRedirection::Type type = duringLoad |
- ? ScheduledRedirection::locationChangeDuringLoad : ScheduledRedirection::locationChange; |
- scheduleRedirection(new ScheduledRedirection(type, m_URL.string(), m_outgoingReferrer, true, wasUserGesture)); |
- m_cachePolicy = CachePolicyRefresh; |
-} |
- |
-bool FrameLoader::isLocationChange(const ScheduledRedirection& redirection) |
-{ |
- switch (redirection.type) { |
- case ScheduledRedirection::redirection: |
- return false; |
- case ScheduledRedirection::reload: |
- case ScheduledRedirection::historyNavigation: |
- case ScheduledRedirection::locationChange: |
- case ScheduledRedirection::locationChangeDuringLoad: |
- return true; |
- } |
- ASSERT_NOT_REACHED(); |
- return false; |
-} |
- |
-void FrameLoader::scheduleHistoryNavigation(int steps) |
-{ |
- if (!m_frame->page()) |
- return; |
- |
- // navigation will always be allowed in the 0 steps case, which is OK because that's supposed to force a reload. |
- if (!canGoBackOrForward(steps)) { |
- cancelRedirection(); |
- return; |
- } |
- |
- if (steps == 0) { |
- // Special case for go(0) from a frame -> reload only the frame |
- scheduleRedirection(new ScheduledRedirection(ScheduledRedirection::reload, String(), String(), false, false)); |
- return; |
- } |
- |
- Page* page = m_frame->page(); |
- if (!page) |
- return; |
- BackForwardList* list = page->backForwardList(); |
- if (!list) |
- return; |
- |
- // Asynchronously loads the item at the given offset in the history. |
- list->goToItemAtIndexAsync(steps); |
- |
- // The redirection will be handled elsewhere. |
- cancelRedirection(); |
-} |
- |
-// This is called by ContextMenuController, which is only used in test shell |
-// and not Chrome. |
-void FrameLoader::goBackOrForward(int distance) |
-{ |
- if (distance == 0) |
- return; |
- |
- Page* page = m_frame->page(); |
- if (!page) |
- return; |
- BackForwardList* list = page->backForwardList(); |
- if (!list) |
- return; |
- |
- HistoryItem* item = list->itemAtIndex(distance); |
- if (!item) { |
- if (distance > 0) { |
- int forwardListCount = list->forwardListCount(); |
- if (forwardListCount > 0) |
- item = list->itemAtIndex(forwardListCount); |
- } else { |
- int backListCount = list->backListCount(); |
- if (backListCount > 0) |
- item = list->itemAtIndex(-backListCount); |
- } |
- } |
- |
- ASSERT(item); // we should not reach this line with an empty back/forward list |
- if (item) |
- page->goToItem(item, FrameLoadTypeIndexedBackForward); |
-} |
- |
-void FrameLoader::goToHistoryItem(HistoryItem* item) |
-{ |
- Page* page = m_frame->page(); |
- if (!page) |
- return; |
- |
- page->goToItem(item, FrameLoadTypeIndexedBackForward); |
-} |
- |
-void FrameLoader::redirectionTimerFired(Timer<FrameLoader>*) |
-{ |
- ASSERT(m_frame->page()); |
- |
- OwnPtr<ScheduledRedirection> redirection(m_scheduledRedirection.release()); |
- |
- switch (redirection->type) { |
- case ScheduledRedirection::redirection: |
- case ScheduledRedirection::locationChange: |
- case ScheduledRedirection::locationChangeDuringLoad: |
- changeLocation(redirection->url, redirection->referrer, |
- redirection->lockHistory, redirection->wasUserGesture); |
- return; |
- case ScheduledRedirection::reload: |
- urlSelected(m_URL, "", 0, false, false); |
- return; |
- case ScheduledRedirection::historyNavigation: |
- goToHistoryItem(redirection->historyItem.get()); |
- return; |
- } |
- |
- ASSERT_NOT_REACHED(); |
-} |
- |
-/* |
- In the case of saving state about a page with frames, we store a tree of items that mirrors the frame tree. |
- The item that was the target of the user's navigation is designated as the "targetItem". |
- When this method is called with doClip=YES we're able to create the whole tree except for the target's children, |
- which will be loaded in the future. That part of the tree will be filled out as the child loads are committed. |
-*/ |
-void FrameLoader::loadURLIntoChildFrame(const KURL& url, const String& referer, Frame* childFrame) |
-{ |
- ASSERT(childFrame); |
- HistoryItem* parentItem = currentHistoryItem(); |
- FrameLoadType loadType = this->loadType(); |
- FrameLoadType childLoadType = FrameLoadTypeRedirectWithLockedHistory; |
- |
- KURL workingURL = url; |
- |
- // If we're moving in the backforward list, we might want to replace the content |
- // of this child frame with whatever was there at that point. |
- // Reload will maintain the frame contents, LoadSame will not. |
- if (parentItem && parentItem->children().size() && |
- (isBackForwardLoadType(loadType) || loadType == FrameLoadTypeReloadAllowingStaleData)) |
- { |
- HistoryItem* childItem = parentItem->childItemWithName(childFrame->tree()->name()); |
- if (childItem) { |
- // Use the original URL to ensure we get all the side-effects, such as |
- // onLoad handlers, of any redirects that happened. An example of where |
- // this is needed is Radar 3213556. |
- workingURL = KURL(childItem->originalURLString()); |
- // These behaviors implied by these loadTypes should apply to the child frames |
- childLoadType = loadType; |
- |
- if (isBackForwardLoadType(loadType)) { |
- // For back/forward, remember this item so we can traverse any child items as child frames load |
- childFrame->loader()->setProvisionalHistoryItem(childItem); |
- } else { |
- // For reload, just reinstall the current item, since a new child frame was created but we won't be creating a new BF item |
- childFrame->loader()->setCurrentHistoryItem(childItem); |
- } |
- } |
- } |
- |
- RefPtr<Archive> subframeArchive = activeDocumentLoader()->popArchiveForSubframe(childFrame->tree()->name()); |
- |
- if (subframeArchive) |
- childFrame->loader()->loadArchive(subframeArchive.release()); |
- else |
- childFrame->loader()->loadURL(workingURL, referer, String(), childLoadType, 0, 0); |
-} |
- |
-void FrameLoader::loadArchive(PassRefPtr<Archive> prpArchive) |
-{ |
- RefPtr<Archive> archive = prpArchive; |
- |
- ArchiveResource* mainResource = archive->mainResource(); |
- ASSERT(mainResource); |
- if (!mainResource) |
- return; |
- |
- SubstituteData substituteData(mainResource->data(), mainResource->mimeType(), mainResource->textEncoding(), KURL()); |
- |
- ResourceRequest request(mainResource->url()); |
-#if PLATFORM(MAC) |
- request.applyWebArchiveHackForMail(); |
-#endif |
- |
- RefPtr<DocumentLoader> documentLoader = m_client->createDocumentLoader(request, substituteData); |
- documentLoader->addAllArchiveResources(archive.get()); |
- load(documentLoader.get()); |
-} |
- |
-String FrameLoader::encoding() const |
-{ |
- if (m_encodingWasChosenByUser && !m_encoding.isEmpty()) |
- return m_encoding; |
- if (m_decoder && m_decoder->encoding().isValid()) |
- return m_decoder->encoding().name(); |
- Settings* settings = m_frame->settings(); |
- return settings ? settings->defaultTextEncodingName() : String(); |
-} |
- |
-bool FrameLoader::gotoAnchor(const String& name) |
-{ |
- ASSERT(m_frame->document()); |
- |
- if (!m_frame->document()->haveStylesheetsLoaded()) { |
- m_frame->document()->setGotoAnchorNeededAfterStylesheetsLoad(true); |
- return false; |
- } |
- |
- m_frame->document()->setGotoAnchorNeededAfterStylesheetsLoad(false); |
- |
- Node* anchorNode = m_frame->document()->getElementById(AtomicString(name)); |
- if (!anchorNode && !name.isEmpty()) |
- anchorNode = m_frame->document()->anchors()->namedItem(name, !m_frame->document()->inCompatMode()); |
- |
-#if ENABLE(SVG) |
- if (m_frame->document()->isSVGDocument()) { |
- if (name.startsWith("xpointer(")) { |
- // We need to parse the xpointer reference here |
- } else if (name.startsWith("svgView(")) { |
- RefPtr<SVGSVGElement> svg = static_cast<SVGDocument*>(m_frame->document())->rootElement(); |
- if (!svg->currentView()->parseViewSpec(name)) |
- return false; |
- svg->setUseCurrentView(true); |
- } else { |
- if (anchorNode && anchorNode->hasTagName(SVGNames::viewTag)) { |
- RefPtr<SVGViewElement> viewElement = anchorNode->hasTagName(SVGNames::viewTag) ? static_cast<SVGViewElement*>(anchorNode) : 0; |
- if (viewElement.get()) { |
- RefPtr<SVGSVGElement> svg = static_cast<SVGSVGElement*>(SVGLocatable::nearestViewportElement(viewElement.get())); |
- svg->inheritViewAttributes(viewElement.get()); |
- } |
- } |
- } |
- // FIXME: need to decide which <svg> to focus on, and zoom to that one |
- // FIXME: need to actually "highlight" the viewTarget(s) |
- } |
-#endif |
- |
- m_frame->document()->setCSSTarget(anchorNode); // Setting to null will clear the current target. |
- |
- // Implement the rule that "" and "top" both mean top of page as in other browsers. |
- if (!anchorNode && !(name.isEmpty() || equalIgnoringCase(name, "top"))) |
- return false; |
- |
- // We need to update the layout before scrolling, otherwise we could |
- // really mess things up if an anchor scroll comes at a bad moment. |
- if (m_frame->document()) { |
- m_frame->document()->updateRendering(); |
- // Only do a layout if changes have occurred that make it necessary. |
- if (m_frame->view() && m_frame->contentRenderer() && m_frame->contentRenderer()->needsLayout()) |
- m_frame->view()->layout(); |
- } |
- |
- // Scroll nested layers and frames to reveal the anchor. |
- // Align to the top and to the closest side (this matches other browsers). |
- RenderObject* renderer; |
- IntRect rect; |
- if (!anchorNode) |
- renderer = m_frame->document()->renderer(); // top of document |
- else { |
- renderer = anchorNode->renderer(); |
- rect = anchorNode->getRect(); |
- } |
- if (renderer) |
- renderer->enclosingLayer()->scrollRectToVisible(rect, true, RenderLayer::gAlignToEdgeIfNeeded, RenderLayer::gAlignTopAlways); |
- |
- return true; |
-} |
- |
-bool FrameLoader::requestObject(RenderPart* renderer, const String& url, const AtomicString& frameName, |
- const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues) |
-{ |
- if (url.isEmpty() && mimeType.isEmpty()) |
- return false; |
- |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
- // don't care object during low bandwidth display |
- if (frame()->document()->inLowBandwidthDisplay()) { |
- m_needToSwitchOutLowBandwidthDisplay = true; |
- return false; |
- } |
-#endif |
- |
- KURL completedURL; |
- if (!url.isEmpty()) |
- completedURL = completeURL(url); |
- |
- bool useFallback; |
- if (shouldUsePlugin(completedURL, mimeType, renderer->hasFallbackContent(), useFallback)) { |
- Settings* settings = m_frame->settings(); |
- if (!settings || !settings->arePluginsEnabled() || |
- (!settings->isJavaEnabled() && MIMETypeRegistry::isJavaAppletMIMEType(mimeType))) |
- return false; |
- return loadPlugin(renderer, completedURL, mimeType, paramNames, paramValues, useFallback); |
- } |
- |
- ASSERT(renderer->node()->hasTagName(objectTag) || renderer->node()->hasTagName(embedTag)); |
- HTMLPlugInElement* element = static_cast<HTMLPlugInElement*>(renderer->node()); |
- |
- // FIXME: OK to always make a new frame? When does the old frame get removed? |
- return loadSubframe(element, completedURL, frameName, m_outgoingReferrer); |
-} |
- |
-bool FrameLoader::shouldUsePlugin(const KURL& url, const String& mimeType, bool hasFallback, bool& useFallback) |
-{ |
- if (m_frame->page() && (mimeType == "image/tiff" || mimeType == "image/tif" || mimeType == "image/x-tiff")) { |
- String pluginName = m_frame->page()->pluginData()->pluginNameForMimeType(mimeType); |
- if (!pluginName.isEmpty() && !pluginName.contains("QuickTime", false)) |
- return true; |
- } |
- |
- ObjectContentType objectType = m_client->objectContentType(url, mimeType); |
- // If an object's content can't be handled and it has no fallback, let |
- // it be handled as a plugin to show the broken plugin icon. |
- useFallback = objectType == ObjectContentNone && hasFallback; |
- return objectType == ObjectContentNone || objectType == ObjectContentNetscapePlugin || objectType == ObjectContentOtherPlugin; |
-} |
- |
-bool FrameLoader::loadPlugin(RenderPart* renderer, const KURL& url, const String& mimeType, |
- const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback) |
-{ |
- Widget* widget = 0; |
- |
- if (renderer && !useFallback) { |
- Element* pluginElement = 0; |
- if (renderer->node() && renderer->node()->isElementNode()) |
- pluginElement = static_cast<Element*>(renderer->node()); |
- |
- if (!canLoad(url, String(), frame()->document())) { |
- FrameLoader::reportLocalLoadFailed(m_frame, url.string()); |
- return false; |
- } |
- |
- widget = m_client->createPlugin(IntSize(renderer->contentWidth(), renderer->contentHeight()), |
- pluginElement, url, paramNames, paramValues, mimeType, |
- m_frame->document()->isPluginDocument()); |
- if (widget) { |
- renderer->setWidget(widget); |
- m_containsPlugIns = true; |
- } |
- } |
- |
- return widget != 0; |
-} |
- |
-void FrameLoader::clearRecordedFormValues() |
-{ |
- m_formAboutToBeSubmitted = 0; |
- m_formValuesAboutToBeSubmitted.clear(); |
-} |
- |
-void FrameLoader::setFormAboutToBeSubmitted(PassRefPtr<HTMLFormElement> element) |
-{ |
- m_formAboutToBeSubmitted = element; |
-} |
- |
-void FrameLoader::recordFormValue(const String& name, const String& value) |
-{ |
- m_formValuesAboutToBeSubmitted.set(name, value); |
-} |
- |
-void FrameLoader::parentCompleted() |
-{ |
- if (m_scheduledRedirection && !m_redirectionTimer.isActive()) |
- startRedirectionTimer(); |
-} |
- |
-String FrameLoader::outgoingReferrer() const |
-{ |
- return m_outgoingReferrer; |
-} |
- |
-Frame* FrameLoader::opener() |
-{ |
- return m_opener; |
-} |
- |
-void FrameLoader::setOpener(Frame* opener) |
-{ |
- if (m_opener) |
- m_opener->loader()->m_openedFrames.remove(m_frame); |
- if (opener) |
- opener->loader()->m_openedFrames.add(m_frame); |
- m_opener = opener; |
- |
- if (m_frame->document()) { |
- m_frame->document()->initSecurityContext(); |
- m_frame->domWindow()->setSecurityOrigin(m_frame->document()->securityOrigin()); |
- } |
-} |
- |
-bool FrameLoader::openedByDOM() const |
-{ |
- return m_openedByDOM; |
-} |
- |
-void FrameLoader::setOpenedByDOM() |
-{ |
- m_openedByDOM = true; |
-} |
- |
-void FrameLoader::handleFallbackContent() |
-{ |
- HTMLFrameOwnerElement* owner = m_frame->ownerElement(); |
- if (!owner || !owner->hasTagName(objectTag)) |
- return; |
- static_cast<HTMLObjectElement*>(owner)->renderFallbackContent(); |
-} |
- |
-void FrameLoader::provisionalLoadStarted() |
-{ |
- Page* page = m_frame->page(); |
- |
- // this is used to update the current history item |
- // in the event of a navigation aytime during loading |
- m_navigationDuringLoad = false; |
- if (page) { |
- Document *document = page->mainFrame()->document(); |
- m_navigationDuringLoad = !page->mainFrame()->loader()->isComplete() || (document && document->processingLoadEvent()); |
- } |
- |
- m_firstLayoutDone = false; |
- cancelRedirection(true); |
- m_client->provisionalLoadStarted(); |
-} |
- |
-bool FrameLoader::userGestureHint() |
-{ |
- Frame* rootFrame = m_frame; |
- while (rootFrame->tree()->parent()) |
- rootFrame = rootFrame->tree()->parent(); |
- |
- if (rootFrame->script()->isEnabled()) |
- return rootFrame->script()->processingUserGesture(); |
- |
- return true; // If JavaScript is disabled, a user gesture must have initiated the navigation |
-} |
- |
-void FrameLoader::didNotOpenURL(const KURL& url) |
-{ |
- if (m_submittedFormURL == url) |
- m_submittedFormURL = KURL(); |
-} |
- |
-void FrameLoader::resetMultipleFormSubmissionProtection() |
-{ |
- m_submittedFormURL = KURL(); |
-} |
- |
-void FrameLoader::setEncoding(const String& name, bool userChosen) |
-{ |
- if (!m_workingURL.isEmpty()) |
- receivedFirstData(); |
- m_encoding = name; |
- m_encodingWasChosenByUser = userChosen; |
-} |
- |
-void FrameLoader::addData(const char* bytes, int length) |
-{ |
- ASSERT(m_workingURL.isEmpty()); |
- ASSERT(m_frame->document()); |
- ASSERT(m_frame->document()->parsing()); |
- write(bytes, length); |
-} |
- |
-bool FrameLoader::canCachePage() |
-{ |
- // Cache the page, if possible. |
- // Don't write to the cache if in the middle of a redirect, since we will want to |
- // store the final page we end up on. |
- // No point writing to the cache on a reload or loadSame, since we will just write |
- // over it again when we leave that page. |
- // FIXME: <rdar://problem/4886592> - We should work out the complexities of caching pages with frames as they |
- // are the most interesting pages on the web, and often those that would benefit the most from caching! |
- FrameLoadType loadType = this->loadType(); |
- |
- return m_documentLoader |
- && m_documentLoader->mainDocumentError().isNull() |
- && !m_frame->tree()->childCount() |
- && !m_frame->tree()->parent() |
- // FIXME: If we ever change this so that pages with plug-ins will be cached, |
- // we need to make sure that we don't cache pages that have outstanding NPObjects |
- // (objects created by the plug-in). Since there is no way to pause/resume a Netscape plug-in, |
- // they would need to be destroyed and then recreated, and there is no way that we can recreate |
- // the right NPObjects. See <rdar://problem/5197041> for more information. |
- && !m_containsPlugIns |
- && !m_URL.protocolIs("https") |
- && m_frame->document() |
- && !m_frame->document()->hasWindowEventListener(unloadEvent) |
-#if ENABLE(DATABASE) |
- && !m_frame->document()->hasOpenDatabases() |
-#endif |
- && m_frame->page() |
- && m_frame->page()->backForwardList()->enabled() |
- && m_frame->page()->backForwardList()->capacity() > 0 |
- && m_frame->page()->settings()->usesPageCache() |
- && m_currentHistoryItem |
- && !isQuickRedirectComing() |
- && loadType != FrameLoadTypeReload |
- && loadType != FrameLoadTypeReloadAllowingStaleData |
- && loadType != FrameLoadTypeSame |
- && !m_documentLoader->isLoadingInAPISense() |
- && !m_documentLoader->isStopping() |
-#if ENABLE(OFFLINE_WEB_APPLICATIONS) |
- // FIXME: We should investigating caching pages that have an associated |
- // application cache. <rdar://problem/5917899> tracks that work. |
- && !m_documentLoader->applicationCache() |
- && !m_documentLoader->candidateApplicationCacheGroup() |
-#endif |
- ; |
-} |
- |
-void FrameLoader::updatePolicyBaseURL() |
-{ |
- if (m_frame->tree()->parent() && m_frame->tree()->parent()->document()) |
- setPolicyBaseURL(m_frame->tree()->parent()->document()->policyBaseURL()); |
- else |
- setPolicyBaseURL(m_URL); |
-} |
- |
-void FrameLoader::setPolicyBaseURL(const KURL& url) |
-{ |
- if (m_frame->document()) |
- m_frame->document()->setPolicyBaseURL(url); |
- for (Frame* child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling()) |
- child->loader()->setPolicyBaseURL(url); |
-} |
- |
-// This does the same kind of work that didOpenURL does, except it relies on the fact |
-// that a higher level already checked that the URLs match and the scrolling is the right thing to do. |
-void FrameLoader::scrollToAnchor(const KURL& url) |
-{ |
- m_URL = url; |
- updateHistoryForAnchorScroll(); |
- |
- // If we were in the autoscroll/panScroll mode we want to stop it before following the link to the anchor |
- m_frame->eventHandler()->stopAutoscrollTimer(); |
- started(); |
- gotoAnchor(); |
- |
- // It's important to model this as a load that starts and immediately finishes. |
- // Otherwise, the parent frame may think we never finished loading. |
- m_isComplete = false; |
- checkCompleted(); |
-} |
- |
-bool FrameLoader::isComplete() const |
-{ |
- return m_isComplete; |
-} |
- |
-void FrameLoader::scheduleRedirection(ScheduledRedirection* redirection) |
-{ |
- ASSERT(m_frame->page()); |
- |
- stopRedirectionTimer(); |
- m_scheduledRedirection.set(redirection); |
- if (!m_isComplete && redirection->type != ScheduledRedirection::redirection) |
- completed(); |
- if (m_isComplete || redirection->type != ScheduledRedirection::redirection) |
- startRedirectionTimer(); |
-} |
- |
-void FrameLoader::startRedirectionTimer() |
-{ |
- ASSERT(m_frame->page()); |
- ASSERT(m_scheduledRedirection); |
- |
- m_redirectionTimer.stop(); |
- m_redirectionTimer.startOneShot(m_scheduledRedirection->delay); |
- |
- switch (m_scheduledRedirection->type) { |
- case ScheduledRedirection::redirection: |
- case ScheduledRedirection::locationChange: |
- case ScheduledRedirection::locationChangeDuringLoad: |
- clientRedirected(KURL(m_scheduledRedirection->url), |
- m_scheduledRedirection->delay, |
- currentTime() + m_redirectionTimer.nextFireInterval(), |
- m_scheduledRedirection->lockHistory, |
- m_isExecutingJavaScriptFormAction); |
- return; |
- case ScheduledRedirection::reload: |
- case ScheduledRedirection::historyNavigation: |
- // Don't report history navigations. |
- return; |
- } |
- ASSERT_NOT_REACHED(); |
-} |
- |
-void FrameLoader::stopRedirectionTimer() |
-{ |
- if (!m_redirectionTimer.isActive()) |
- return; |
- |
- m_redirectionTimer.stop(); |
- |
- if (m_scheduledRedirection) { |
- switch (m_scheduledRedirection->type) { |
- case ScheduledRedirection::redirection: |
- case ScheduledRedirection::locationChange: |
- case ScheduledRedirection::locationChangeDuringLoad: |
- clientRedirectCancelledOrFinished(m_cancellingWithLoadInProgress); |
- return; |
- case ScheduledRedirection::reload: |
- case ScheduledRedirection::historyNavigation: |
- // Don't report history navigations. |
- return; |
- } |
- ASSERT_NOT_REACHED(); |
- } |
-} |
- |
-void FrameLoader::completed() |
-{ |
- RefPtr<Frame> protect(m_frame); |
- for (Frame* child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling()) |
- child->loader()->parentCompleted(); |
- if (Frame* parent = m_frame->tree()->parent()) |
- parent->loader()->checkCompleted(); |
- submitFormAgain(); |
-} |
- |
-void FrameLoader::started() |
-{ |
- for (Frame* frame = m_frame; frame; frame = frame->tree()->parent()) |
- frame->loader()->m_isComplete = false; |
-} |
- |
-bool FrameLoader::containsPlugins() const |
-{ |
- return m_containsPlugIns; |
-} |
- |
-void FrameLoader::prepareForLoadStart() |
-{ |
- if (Page* page = m_frame->page()) |
- page->progress()->progressStarted(m_frame); |
- m_client->dispatchDidStartProvisionalLoad(); |
-} |
- |
-void FrameLoader::setupForReplace() |
-{ |
- setState(FrameStateProvisional); |
- m_provisionalDocumentLoader = m_documentLoader; |
- m_documentLoader = 0; |
- detachChildren(); |
-} |
- |
-void FrameLoader::setupForReplaceByMIMEType(const String& newMIMEType) |
-{ |
- activeDocumentLoader()->setupForReplaceByMIMEType(newMIMEType); |
-} |
- |
-void FrameLoader::loadFrameRequestWithFormState(const FrameLoadRequest& request, bool lockHistory, Event* event, PassRefPtr<FormState> prpFormState) |
-{ |
- RefPtr<FormState> formState = prpFormState; |
- KURL url = request.resourceRequest().url(); |
- |
- String referrer; |
- String argsReferrer = request.resourceRequest().httpReferrer(); |
- if (!argsReferrer.isEmpty()) |
- referrer = argsReferrer; |
- else |
- referrer = m_outgoingReferrer; |
- |
- ASSERT(frame()->document()); |
- if (url.protocolIs("file")) { |
- if (!canLoad(url, String(), frame()->document()) && !canLoad(url, referrer)) { |
- FrameLoader::reportLocalLoadFailed(m_frame, url.string()); |
- return; |
- } |
- } |
- |
- if (shouldHideReferrer(url, referrer)) |
- referrer = String(); |
- |
- Frame* targetFrame = findFrameForNavigation(request.frameName()); |
- |
- if (request.resourceRequest().httpMethod() != "POST") { |
- FrameLoadType loadType; |
- if (request.resourceRequest().cachePolicy() == ReloadIgnoringCacheData) |
- loadType = FrameLoadTypeReload; |
- else if (lockHistory) |
- loadType = FrameLoadTypeRedirectWithLockedHistory; |
- else |
- loadType = FrameLoadTypeStandard; |
- |
- loadURL(request.resourceRequest().url(), referrer, request.frameName(), loadType, |
- event, formState.release()); |
- } else |
- loadPostRequest(request.resourceRequest(), referrer, request.frameName(), event, formState.release()); |
- |
- if (targetFrame && targetFrame != m_frame) |
- if (Page* page = targetFrame->page()) |
- page->chrome()->focus(); |
-} |
- |
- |
-void FrameLoader::loadFrameRequestWithFormAndValues(const FrameLoadRequest& request, bool lockHistory, Event* event, |
- HTMLFormElement* submitForm, const HashMap<String, String>& formValues) |
-{ |
- RefPtr<FormState> formState; |
- if (submitForm && !formValues.isEmpty()) |
- formState = FormState::create(submitForm, formValues, m_frame); |
- |
- loadFrameRequestWithFormState(request, lockHistory, event, formState.release()); |
-} |
- |
- |
-void FrameLoader::loadURL(const KURL& newURL, const String& referrer, const String& frameName, FrameLoadType newLoadType, |
- Event* event, PassRefPtr<FormState> prpFormState) |
-{ |
- RefPtr<FormState> formState = prpFormState; |
- bool isFormSubmission = formState; |
- |
- ResourceRequest request(newURL); |
- if (!referrer.isEmpty()) |
- request.setHTTPReferrer(referrer); |
- addExtraFieldsToRequest(request, true, event || isFormSubmission); |
- if (newLoadType == FrameLoadTypeReload) |
- request.setCachePolicy(ReloadIgnoringCacheData); |
- |
- ASSERT(newLoadType != FrameLoadTypeSame); |
- |
- NavigationAction action(newURL, newLoadType, isFormSubmission, event); |
- |
- if (!frameName.isEmpty()) { |
- if (Frame* targetFrame = findFrameForNavigation(frameName)) |
- targetFrame->loader()->loadURL(newURL, referrer, String(), newLoadType, event, formState); |
- else |
- checkNewWindowPolicy(action, request, formState, frameName); |
- return; |
- } |
- |
- RefPtr<DocumentLoader> oldDocumentLoader = m_documentLoader; |
- |
- bool sameURL = shouldTreatURLAsSameAsCurrent(newURL); |
- |
- // Make sure to do scroll to anchor processing even if the URL is |
- // exactly the same so pages with '#' links and DHTML side effects |
- // work properly. |
- if (shouldScrollToAnchor(isFormSubmission, newLoadType, newURL)) { |
- oldDocumentLoader->setTriggeringAction(action); |
- stopPolicyCheck(); |
- checkNavigationPolicy(request, oldDocumentLoader.get(), formState, |
- callContinueFragmentScrollAfterNavigationPolicy, this); |
- } else { |
- // must grab this now, since this load may stop the previous load and clear this flag |
- bool isRedirect = m_quickRedirectComing; |
- loadWithNavigationAction(request, action, newLoadType, formState); |
- if (isRedirect) { |
- m_quickRedirectComing = false; |
- if (m_provisionalDocumentLoader) |
- m_provisionalDocumentLoader->setIsClientRedirect(true); |
- } else if (sameURL) |
- // Example of this case are sites that reload the same URL with a different cookie |
- // driving the generated content, or a master frame with links that drive a target |
- // frame, where the user has clicked on the same link repeatedly. |
- // But if the load type is FrameLoadTypeReloadAllowingStaleData, which means the frame |
- // is reloaded only because user select one encoding from encoding menu, so we do not |
- // change the load type. |
- if (m_loadType != FrameLoadTypeReloadAllowingStaleData) |
- m_loadType = FrameLoadTypeSame; |
- } |
-} |
- |
-void FrameLoader::load(const ResourceRequest& request) |
-{ |
- load(request, SubstituteData()); |
-} |
- |
-void FrameLoader::load(const ResourceRequest& request, const SubstituteData& substituteData) |
-{ |
- if (m_inStopAllLoaders) |
- return; |
- |
- // FIXME: is this the right place to reset loadType? Perhaps this should be done after loading is finished or aborted. |
- m_loadType = FrameLoadTypeStandard; |
- load(m_client->createDocumentLoader(request, substituteData).get()); |
-} |
- |
-void FrameLoader::load(const ResourceRequest& request, const String& frameName) |
-{ |
- if (frameName.isEmpty()) { |
- load(request); |
- return; |
- } |
- |
- Frame* frame = findFrameForNavigation(frameName); |
- if (frame) { |
- frame->loader()->load(request); |
- return; |
- } |
- |
- checkNewWindowPolicy(NavigationAction(request.url(), NavigationTypeOther), request, 0, frameName); |
-} |
- |
-void FrameLoader::loadWithNavigationAction(const ResourceRequest& request, const NavigationAction& action, FrameLoadType type, PassRefPtr<FormState> formState) |
-{ |
- RefPtr<DocumentLoader> loader = m_client->createDocumentLoader(request, SubstituteData()); |
- |
- loader->setTriggeringAction(action); |
- if (m_documentLoader) { |
- // if the load type is not FrameLoadTypeReloadAllowingStaleData, |
- // which means we will load page by user action, so we need not |
- // use original encoding override. |
- if (type == FrameLoadTypeReloadAllowingStaleData) |
- loader->setOverrideEncoding(m_documentLoader->overrideEncoding()); |
- else |
- loader->setOverrideEncoding(String()); |
- } |
- |
- loadWithDocumentLoader(loader.get(), type, formState); |
-} |
- |
-void FrameLoader::load(DocumentLoader* newDocumentLoader) |
-{ |
- ResourceRequest& r = newDocumentLoader->request(); |
- addExtraFieldsToRequest(r, true, false); |
- FrameLoadType type; |
- |
- if (shouldTreatURLAsSameAsCurrent(newDocumentLoader->originalRequest().url())) { |
- r.setCachePolicy(ReloadIgnoringCacheData); |
- type = FrameLoadTypeSame; |
- } else |
- type = FrameLoadTypeStandard; |
- |
- // Do not use original encoding override since it is not loaded by user |
- // selecting encoding. |
- if (m_documentLoader) |
- newDocumentLoader->setOverrideEncoding(String()); |
- |
- // When we loading alternate content for an unreachable URL that we're |
- // visiting in the history list, we treat it as a reload so the history list |
- // is appropriately maintained. |
- // |
- // FIXME: This seems like a dangerous overloading of the meaning of "FrameLoadTypeReload" ... |
- // shouldn't a more explicit type of reload be defined, that means roughly |
- // "load without affecting history" ? |
- if (shouldReloadToHandleUnreachableURL(newDocumentLoader)) { |
- ASSERT(type == FrameLoadTypeStandard); |
- type = FrameLoadTypeReload; |
- } |
- |
- loadWithDocumentLoader(newDocumentLoader, type, 0); |
-} |
- |
-void FrameLoader::loadWithDocumentLoader(DocumentLoader* loader, FrameLoadType type, PassRefPtr<FormState> prpFormState) |
-{ |
- ASSERT(m_client->hasWebView()); |
- |
- // Unfortunately the view must be non-nil, this is ultimately due |
- // to parser requiring a FrameView. We should fix this dependency. |
- |
- ASSERT(m_client->hasFrameView()); |
- |
- m_policyLoadType = type; |
- RefPtr<FormState> formState = prpFormState; |
- bool isFormSubmission = formState; |
- |
- const KURL& newURL = loader->request().url(); |
- |
- if (shouldScrollToAnchor(isFormSubmission, m_policyLoadType, newURL)) { |
- RefPtr<DocumentLoader> oldDocumentLoader = m_documentLoader; |
- NavigationAction action(newURL, m_policyLoadType, isFormSubmission); |
- |
- oldDocumentLoader->setTriggeringAction(action); |
- stopPolicyCheck(); |
- checkNavigationPolicy(loader->request(), oldDocumentLoader.get(), formState, |
- callContinueFragmentScrollAfterNavigationPolicy, this); |
- } else { |
- if (Frame* parent = m_frame->tree()->parent()) { |
- if (type == FrameLoadTypeReloadAllowingStaleData) |
- loader->setOverrideEncoding(parent->loader()->documentLoader()->overrideEncoding()); |
- else |
- loader->setOverrideEncoding(String()); |
- } |
- |
- stopPolicyCheck(); |
- setPolicyDocumentLoader(loader); |
- |
- checkNavigationPolicy(loader->request(), loader, formState, |
- callContinueLoadAfterNavigationPolicy, this); |
- } |
-} |
- |
-bool FrameLoader::canLoad(const KURL& url, const String& referrer, const Document* doc) |
-{ |
- // We can always load any URL that isn't considered local (e.g. http URLs) |
- if (!shouldTreatURLAsLocal(url.string())) |
- return true; |
- |
- // If we were provided a document, we let its local file policy dictate the result, |
- // otherwise we allow local loads only if the supplied referrer is also local. |
- if (doc) |
- return doc->securityOrigin()->canLoadLocalResources(); |
- else if (!referrer.isEmpty()) |
- return shouldTreatURLAsLocal(referrer); |
- else |
- return false; |
-} |
- |
-void FrameLoader::reportLocalLoadFailed(Frame* frame, const String& url) |
-{ |
- ASSERT(!url.isEmpty()); |
- if (!frame) |
- return; |
- |
- frame->domWindow()->console()->addMessage(JSMessageSource, ErrorMessageLevel, "Not allowed to load local resource: " + url, 0, String()); |
-} |
- |
-bool FrameLoader::shouldHideReferrer(const KURL& url, const String& referrer) |
-{ |
- bool referrerIsSecureURL = protocolIs(referrer, "https"); |
- bool referrerIsWebURL = referrerIsSecureURL || protocolIs(referrer, "http"); |
- |
- if (!referrerIsWebURL) |
- return true; |
- |
- if (!referrerIsSecureURL) |
- return false; |
- |
- bool URLIsSecureURL = url.protocolIs("https"); |
- |
- return !URLIsSecureURL; |
-} |
- |
-const ResourceRequest& FrameLoader::initialRequest() const |
-{ |
- return activeDocumentLoader()->originalRequest(); |
-} |
- |
-void FrameLoader::receivedData(const char* data, int length) |
-{ |
- activeDocumentLoader()->receivedData(data, length); |
-} |
- |
-void FrameLoader::handleUnimplementablePolicy(const ResourceError& error) |
-{ |
- m_delegateIsHandlingUnimplementablePolicy = true; |
- m_client->dispatchUnableToImplementPolicy(error); |
- m_delegateIsHandlingUnimplementablePolicy = false; |
-} |
- |
-void FrameLoader::cannotShowMIMEType(const ResourceResponse& response) |
-{ |
- handleUnimplementablePolicy(m_client->cannotShowMIMETypeError(response)); |
-} |
- |
-ResourceError FrameLoader::interruptionForPolicyChangeError(const ResourceRequest& request) |
-{ |
- return m_client->interruptForPolicyChangeError(request); |
-} |
- |
-void FrameLoader::checkNavigationPolicy(const ResourceRequest& newRequest, NavigationPolicyDecisionFunction function, void* argument) |
-{ |
- checkNavigationPolicy(newRequest, activeDocumentLoader(), 0, function, argument); |
-} |
- |
-void FrameLoader::checkContentPolicy(const String& MIMEType, ContentPolicyDecisionFunction function, void* argument) |
-{ |
- ASSERT(activeDocumentLoader()); |
- |
- // Always show content with valid substitute data. |
- if (activeDocumentLoader()->substituteData().isValid()) { |
- function(argument, PolicyUse); |
- return; |
- } |
- |
-#if ENABLE(FTPDIR) |
- // Respect the hidden FTP Directory Listing pref so it can be tested even if the policy delegate might otherwise disallow it |
- Settings* settings = m_frame->settings(); |
- if (settings && settings->forceFTPDirectoryListings() && MIMEType == "application/x-ftp-directory") { |
- function(argument, PolicyUse); |
- return; |
- } |
-#endif |
- |
- m_policyCheck.set(function, argument); |
- m_client->dispatchDecidePolicyForMIMEType(&FrameLoader::continueAfterContentPolicy, |
- MIMEType, activeDocumentLoader()->request()); |
-} |
- |
-bool FrameLoader::shouldReloadToHandleUnreachableURL(DocumentLoader* docLoader) |
-{ |
- KURL unreachableURL = docLoader->unreachableURL(); |
- |
- if (unreachableURL.isEmpty()) |
- return false; |
- |
- if (!isBackForwardLoadType(m_policyLoadType)) |
- return false; |
- |
- // We only treat unreachableURLs specially during the delegate callbacks |
- // for provisional load errors and navigation policy decisions. The former |
- // case handles well-formed URLs that can't be loaded, and the latter |
- // case handles malformed URLs and unknown schemes. Loading alternate content |
- // at other times behaves like a standard load. |
- DocumentLoader* compareDocumentLoader = 0; |
- if (m_delegateIsDecidingNavigationPolicy || m_delegateIsHandlingUnimplementablePolicy) |
- compareDocumentLoader = m_policyDocumentLoader.get(); |
- else if (m_delegateIsHandlingProvisionalLoadError) |
- compareDocumentLoader = m_provisionalDocumentLoader.get(); |
- |
- return compareDocumentLoader && unreachableURL == compareDocumentLoader->request().url(); |
-} |
- |
-void FrameLoader::reloadAllowingStaleData(const String& encoding) |
-{ |
- if (!m_documentLoader) |
- return; |
- |
- ResourceRequest request = m_documentLoader->request(); |
- KURL unreachableURL = m_documentLoader->unreachableURL(); |
- if (!unreachableURL.isEmpty()) |
- request.setURL(unreachableURL); |
- |
- request.setCachePolicy(ReturnCacheDataElseLoad); |
- |
- RefPtr<DocumentLoader> loader = m_client->createDocumentLoader(request, SubstituteData()); |
- setPolicyDocumentLoader(loader.get()); |
- |
- loader->setOverrideEncoding(encoding); |
- |
- loadWithDocumentLoader(loader.get(), FrameLoadTypeReloadAllowingStaleData, 0); |
-} |
- |
-void FrameLoader::reload() |
-{ |
- if (!m_documentLoader) |
- return; |
- |
- ResourceRequest& initialRequest = m_documentLoader->request(); |
- |
- // If a window is created by javascript, its main frame can have an empty but non-nil URL. |
- // Reloading in this case will lose the current contents (see 4151001). |
- if (initialRequest.url().isEmpty()) |
- return; |
- |
- // Replace error-page URL with the URL we were trying to reach. |
- KURL unreachableURL = m_documentLoader->unreachableURL(); |
- if (!unreachableURL.isEmpty()) |
- initialRequest.setURL(unreachableURL); |
- |
- // Create a new document loader for the reload, this will become m_documentLoader eventually, |
- // but first it has to be the "policy" document loader, and then the "provisional" document loader. |
- RefPtr<DocumentLoader> loader = m_client->createDocumentLoader(initialRequest, SubstituteData()); |
- |
- ResourceRequest& request = loader->request(); |
- |
- request.setCachePolicy(ReloadIgnoringCacheData); |
- request.setHTTPHeaderField("Cache-Control", "max-age=0"); |
- |
- // If we're about to re-post, set up action so the application can warn the user. |
- if (request.httpMethod() == "POST") |
- loader->setTriggeringAction(NavigationAction(request.url(), NavigationTypeFormResubmitted)); |
- |
- loader->setOverrideEncoding(String()); |
- |
- loadWithDocumentLoader(loader.get(), FrameLoadTypeReload, 0); |
-} |
- |
-bool FrameLoader::shouldAllowNavigation(Frame* targetFrame) const |
-{ |
- // The navigation change is safe if the active frame is: |
- // - in the same security origin as the target or one of the target's ancestors |
- // Or the target frame is: |
- // - a top-level frame in the frame hierarchy |
- |
- if (!targetFrame) |
- return true; |
- |
- if (m_frame == targetFrame) |
- return true; |
- |
- if (!targetFrame->tree()->parent()) |
- return true; |
- |
- Document* activeDocument = m_frame->document(); |
- ASSERT(activeDocument); |
- const SecurityOrigin* activeSecurityOrigin = activeDocument->securityOrigin(); |
- for (Frame* ancestorFrame = targetFrame; ancestorFrame; ancestorFrame = ancestorFrame->tree()->parent()) { |
- Document* ancestorDocument = ancestorFrame->document(); |
- if (!ancestorDocument) |
- return true; |
- |
- const SecurityOrigin* ancestorSecurityOrigin = ancestorDocument->securityOrigin(); |
- if (activeSecurityOrigin->canAccess(ancestorSecurityOrigin)) |
- return true; |
- } |
- |
- Settings* settings = targetFrame->settings(); |
- if (settings && !settings->privateBrowsingEnabled()) { |
- Document* targetDocument = targetFrame->document(); |
- // FIXME: this error message should contain more specifics of why the navigation change is not allowed. |
- String message = String::format("Unsafe JavaScript attempt to initiate a navigation change for frame with URL %s from frame with URL %s.\n", |
- targetDocument->url().string().utf8().data(), activeDocument->url().string().utf8().data()); |
- |
- // FIXME: should we print to the console of the activeFrame as well? |
- targetFrame->domWindow()->console()->addMessage(JSMessageSource, ErrorMessageLevel, message, 1, String()); |
- } |
- |
- return false; |
-} |
- |
-void FrameLoader::stopLoadingSubframes() |
-{ |
- for (RefPtr<Frame> child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling()) |
- child->loader()->stopAllLoaders(); |
-} |
- |
-void FrameLoader::stopAllLoaders() |
-{ |
- // If this method is called from within this method, infinite recursion can occur (3442218). Avoid this. |
- if (m_inStopAllLoaders) |
- return; |
- |
- m_inStopAllLoaders = true; |
- |
- stopPolicyCheck(); |
- |
- stopLoadingSubframes(); |
- if (m_provisionalDocumentLoader) |
- m_provisionalDocumentLoader->stopLoading(); |
- if (m_documentLoader) |
- m_documentLoader->stopLoading(); |
- |
- setProvisionalDocumentLoader(0); |
- |
- if (m_documentLoader) |
- m_documentLoader->clearArchiveResources(); |
- |
- m_inStopAllLoaders = false; |
-} |
- |
-void FrameLoader::stopForUserCancel(bool deferCheckLoadComplete) |
-{ |
- stopAllLoaders(); |
- |
- if (deferCheckLoadComplete) |
- scheduleCheckLoadComplete(); |
- else if (m_frame->page()) |
- checkLoadComplete(); |
-} |
- |
-DocumentLoader* FrameLoader::activeDocumentLoader() const |
-{ |
- if (m_state == FrameStateProvisional) |
- return m_provisionalDocumentLoader.get(); |
- return m_documentLoader.get(); |
-} |
- |
-bool FrameLoader::isLoading() const |
-{ |
- DocumentLoader* docLoader = activeDocumentLoader(); |
- if (!docLoader) |
- return false; |
- return docLoader->isLoadingMainResource() || docLoader->isLoadingSubresources() || docLoader->isLoadingPlugIns(); |
-} |
- |
-bool FrameLoader::frameHasLoaded() const |
-{ |
- return m_committedFirstRealDocumentLoad || (m_provisionalDocumentLoader && !m_creatingInitialEmptyDocument); |
-} |
- |
-void FrameLoader::setDocumentLoader(DocumentLoader* loader) |
-{ |
- if (!loader && !m_documentLoader) |
- return; |
- |
- ASSERT(loader != m_documentLoader); |
- ASSERT(!loader || loader->frameLoader() == this); |
- |
- m_client->prepareForDataSourceReplacement(); |
- detachChildren(); |
- if (m_documentLoader) |
- m_documentLoader->detachFromFrame(); |
- |
- m_documentLoader = loader; |
-} |
- |
-DocumentLoader* FrameLoader::documentLoader() const |
-{ |
- return m_documentLoader.get(); |
-} |
- |
-void FrameLoader::setPolicyDocumentLoader(DocumentLoader* loader) |
-{ |
- if (m_policyDocumentLoader == loader) |
- return; |
- |
- ASSERT(m_frame); |
- if (loader) |
- loader->setFrame(m_frame); |
- if (m_policyDocumentLoader |
- && m_policyDocumentLoader != m_provisionalDocumentLoader |
- && m_policyDocumentLoader != m_documentLoader) |
- m_policyDocumentLoader->detachFromFrame(); |
- |
- m_policyDocumentLoader = loader; |
-} |
- |
-DocumentLoader* FrameLoader::policyDocumentLoader() const |
-{ |
- return m_policyDocumentLoader.get(); |
-} |
- |
-DocumentLoader* FrameLoader::provisionalDocumentLoader() const |
-{ |
- return m_provisionalDocumentLoader.get(); |
-} |
- |
-DocumentLoader* FrameLoader::policyDocumentLoader() |
-{ |
- return m_policyDocumentLoader.get(); |
-} |
- |
-void FrameLoader::setProvisionalDocumentLoader(DocumentLoader* loader) |
-{ |
- ASSERT(!loader || !m_provisionalDocumentLoader); |
- ASSERT(!loader || loader->frameLoader() == this); |
- |
- if (m_provisionalDocumentLoader && m_provisionalDocumentLoader != m_documentLoader) |
- m_provisionalDocumentLoader->detachFromFrame(); |
- |
- m_provisionalDocumentLoader = loader; |
-} |
- |
-FrameState FrameLoader::state() const |
-{ |
- return m_state; |
-} |
- |
-double FrameLoader::timeOfLastCompletedLoad() |
-{ |
- return storedTimeOfLastCompletedLoad; |
-} |
- |
-void FrameLoader::setState(FrameState newState) |
-{ |
- m_state = newState; |
- |
- if (newState == FrameStateProvisional) |
- provisionalLoadStarted(); |
- else if (newState == FrameStateComplete) { |
- frameLoadCompleted(); |
- storedTimeOfLastCompletedLoad = currentTime(); |
- if (m_documentLoader) |
- m_documentLoader->stopRecordingResponses(); |
- } |
-} |
- |
-void FrameLoader::clearProvisionalLoad() |
-{ |
- setProvisionalDocumentLoader(0); |
- if (Page* page = m_frame->page()) |
- page->progress()->progressCompleted(m_frame); |
- setState(FrameStateComplete); |
-} |
- |
-void FrameLoader::markLoadComplete() |
-{ |
- setState(FrameStateComplete); |
-} |
- |
-void FrameLoader::commitProvisionalLoad(PassRefPtr<CachedPage> prpCachedPage) |
-{ |
- RefPtr<CachedPage> cachedPage = prpCachedPage; |
- RefPtr<DocumentLoader> pdl = m_provisionalDocumentLoader; |
- |
- // Check to see if we need to cache the page we are navigating away from into the back/forward cache. |
- // We are doing this here because we know for sure that a new page is about to be loaded. |
- if (canCachePage() && m_client->canCachePage() && !m_currentHistoryItem->isInPageCache()) |
- cachePageForHistoryItem(m_currentHistoryItem.get()); |
- |
- if (m_loadType != FrameLoadTypeReplace) |
- closeOldDataSources(); |
- |
- if (!cachedPage && !m_creatingInitialEmptyDocument) |
- m_client->makeRepresentation(pdl.get()); |
- |
- transitionToCommitted(cachedPage); |
- |
- // Call clientRedirectCancelledOrFinished() here so that the frame load delegate is notified that the redirect's |
- // status has changed, if there was a redirect. The frame load delegate may have saved some state about |
- // the redirect in its -webView:willPerformClientRedirectToURL:delay:fireDate:forFrame:. Since we are |
- // just about to commit a new page, there cannot possibly be a pending redirect at this point. |
- if (m_sentRedirectNotification) |
- clientRedirectCancelledOrFinished(false); |
- |
- if (cachedPage && cachedPage->document()) { |
- open(*cachedPage); |
- cachedPage->clear(); |
- } else { |
- KURL url = pdl->substituteData().responseURL(); |
- if (url.isEmpty()) |
- url = pdl->url(); |
- if (url.isEmpty()) |
- url = pdl->responseURL(); |
- if (url.isEmpty()) |
- url = blankURL(); |
- |
- didOpenURL(url); |
- } |
- opened(); |
-} |
- |
-void FrameLoader::transitionToCommitted(PassRefPtr<CachedPage> cachedPage) |
-{ |
- ASSERT(m_client->hasWebView()); |
- ASSERT(m_state == FrameStateProvisional); |
- |
- if (m_state != FrameStateProvisional) |
- return; |
- |
- m_client->setCopiesOnScroll(); |
- updateHistoryForCommit(); |
- |
- // The call to closeURL() invokes the unload event handler, which can execute arbitrary |
- // JavaScript. If the script initiates a new load, we need to abandon the current load, |
- // or the two will stomp each other. |
- DocumentLoader* pdl = m_provisionalDocumentLoader.get(); |
- if (m_documentLoader) |
- closeURL(); |
- if (pdl != m_provisionalDocumentLoader) |
- return; |
- |
- // Nothing else can interupt this commit - set the Provisional->Committed transition in stone |
- if (m_documentLoader) |
- m_documentLoader->stopLoadingSubresources(); |
- if (m_documentLoader) |
- m_documentLoader->stopLoadingPlugIns(); |
- |
- setDocumentLoader(m_provisionalDocumentLoader.get()); |
- setProvisionalDocumentLoader(0); |
- setState(FrameStateCommittedPage); |
- |
- // Handle adding the URL to the back/forward list. |
- DocumentLoader* dl = m_documentLoader.get(); |
- String ptitle = dl->title(); |
- |
- switch (m_loadType) { |
- case FrameLoadTypeForward: |
- case FrameLoadTypeBack: |
- case FrameLoadTypeIndexedBackForward: |
- if (Page* page = m_frame->page()) |
- if (page->backForwardList()) { |
- updateHistoryForBackForwardNavigation(); |
- |
- // Create a document view for this document, or used the cached view. |
- if (cachedPage) { |
- DocumentLoader* cachedDocumentLoader = cachedPage->documentLoader(); |
- ASSERT(cachedDocumentLoader); |
- cachedDocumentLoader->setFrame(m_frame); |
- m_client->transitionToCommittedFromCachedPage(cachedPage.get()); |
- |
- } else |
- m_client->transitionToCommittedForNewPage(); |
- } |
- break; |
- |
- case FrameLoadTypeReload: |
- case FrameLoadTypeSame: |
- case FrameLoadTypeReplace: |
- updateHistoryForReload(); |
- m_client->transitionToCommittedForNewPage(); |
- break; |
- |
- // FIXME - just get rid of this case, and merge FrameLoadTypeReloadAllowingStaleData with the above case |
- case FrameLoadTypeReloadAllowingStaleData: |
- m_client->transitionToCommittedForNewPage(); |
- break; |
- |
- case FrameLoadTypeStandard: |
- updateHistoryForStandardLoad(); |
-#ifndef BUILDING_ON_TIGER |
- // This code was originally added for a Leopard performance imporvement. We decided to |
- // ifdef it to fix correctness issues on Tiger documented in <rdar://problem/5441823>. |
- if (m_frame->view()) |
- m_frame->view()->suppressScrollbars(true); |
-#endif |
- m_client->transitionToCommittedForNewPage(); |
- break; |
- |
- case FrameLoadTypeRedirectWithLockedHistory: |
- updateHistoryForRedirectWithLockedHistory(); |
- m_client->transitionToCommittedForNewPage(); |
- break; |
- |
- // FIXME Remove this check when dummy ds is removed (whatever "dummy ds" is). |
- // An exception should be thrown if we're in the FrameLoadTypeUninitialized state. |
- default: |
- ASSERT_NOT_REACHED(); |
- } |
- |
- m_responseMIMEType = dl->responseMIMEType(); |
- |
- // Tell the client we've committed this URL. |
- ASSERT(m_client->hasFrameView()); |
- |
- if (m_creatingInitialEmptyDocument) |
- return; |
- |
- m_committedFirstRealDocumentLoad = true; |
- |
- // For non-cached HTML pages, these methods are called in FrameLoader::begin. |
- if (cachedPage || !m_client->hasHTMLView()) { |
- dispatchDidCommitLoad(); |
- |
- // If we have a title let the WebView know about it. |
- if (!ptitle.isNull()) |
- m_client->dispatchDidReceiveTitle(ptitle); |
- } |
-} |
- |
-void FrameLoader::clientRedirectCancelledOrFinished(bool cancelWithLoadInProgress) |
-{ |
- // Note that -webView:didCancelClientRedirectForFrame: is called on the frame load delegate even if |
- // the redirect succeeded. We should either rename this API, or add a new method, like |
- // -webView:didFinishClientRedirectForFrame: |
- m_client->dispatchDidCancelClientRedirect(); |
- |
- if (!cancelWithLoadInProgress) |
- m_quickRedirectComing = false; |
- |
- m_sentRedirectNotification = false; |
-} |
- |
-void FrameLoader::clientRedirected(const KURL& url, double seconds, double fireDate, bool lockHistory, bool isJavaScriptFormAction) |
-{ |
- m_client->dispatchWillPerformClientRedirect(url, seconds, fireDate); |
- |
- // Remember that we sent a redirect notification to the frame load delegate so that when we commit |
- // the next provisional load, we can send a corresponding -webView:didCancelClientRedirectForFrame: |
- m_sentRedirectNotification = true; |
- |
- // If a "quick" redirect comes in an, we set a special mode so we treat the next |
- // load as part of the same navigation. If we don't have a document loader, we have |
- // no "original" load on which to base a redirect, so we treat the redirect as a normal load. |
- m_quickRedirectComing = lockHistory && m_documentLoader && !isJavaScriptFormAction; |
-} |
- |
-bool FrameLoader::shouldReload(const KURL& currentURL, const KURL& destinationURL) |
-{ |
- // This function implements the rule: "Don't reload if navigating by fragment within |
- // the same URL, but do reload if going to a new URL or to the same URL with no |
- // fragment identifier at all." |
- if (!destinationURL.hasRef()) |
- return true; |
- return !equalIgnoringRef(currentURL, destinationURL); |
-} |
- |
-void FrameLoader::closeOldDataSources() |
-{ |
- // FIXME: Is it important for this traversal to be postorder instead of preorder? |
- // If so, add helpers for postorder traversal, and use them. If not, then lets not |
- // use a recursive algorithm here. |
- for (Frame* child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling()) |
- child->loader()->closeOldDataSources(); |
- |
- if (m_documentLoader) |
- m_client->dispatchWillClose(); |
- |
- m_client->setMainFrameDocumentReady(false); // stop giving out the actual DOMDocument to observers |
-} |
- |
-void FrameLoader::open(CachedPage& cachedPage) |
-{ |
- ASSERT(m_frame->page()); |
- ASSERT(m_frame->page()->mainFrame() == m_frame); |
- |
- cancelRedirection(); |
- |
- // We still have to close the previous part page. |
- closeURL(); |
- |
- m_isComplete = false; |
- |
- // Don't re-emit the load event. |
- m_didCallImplicitClose = true; |
- |
- // Delete old status bar messages (if it _was_ activated on last URL). |
- if (m_frame->script()->isEnabled()) { |
- m_frame->setJSStatusBarText(String()); |
- m_frame->setJSDefaultStatusBarText(String()); |
- } |
- |
- KURL url = cachedPage.url(); |
- |
- if ((url.protocolIs("http") || url.protocolIs("https")) && !url.host().isEmpty() && url.path().isEmpty()) |
- url.setPath("/"); |
- |
- m_URL = url; |
- m_workingURL = url; |
- |
- started(); |
- |
- clear(); |
- |
- Document* document = cachedPage.document(); |
- ASSERT(document); |
- document->setInPageCache(false); |
- |
- m_needsClear = true; |
- m_isComplete = false; |
- m_didCallImplicitClose = false; |
- m_outgoingReferrer = url.string(); |
- |
- FrameView* view = cachedPage.view(); |
- if (view) |
- view->setWasScrolledByUser(false); |
- m_frame->setView(view); |
- |
- m_frame->setDocument(document); |
- m_frame->domWindow()->setURL(document->url()); |
- m_frame->domWindow()->setSecurityOrigin(document->securityOrigin()); |
- |
- m_decoder = document->decoder(); |
- |
- updatePolicyBaseURL(); |
- |
- cachedPage.restore(m_frame->page()); |
- |
- checkCompleted(); |
-} |
- |
-bool FrameLoader::isStopping() const |
-{ |
- return activeDocumentLoader()->isStopping(); |
-} |
- |
-void FrameLoader::finishedLoading() |
-{ |
- // Retain because the stop may release the last reference to it. |
- RefPtr<Frame> protect(m_frame); |
- |
- RefPtr<DocumentLoader> dl = activeDocumentLoader(); |
- dl->finishedLoading(); |
- if (!dl->mainDocumentError().isNull() || !dl->frameLoader()) |
- return; |
- dl->setPrimaryLoadComplete(true); |
- m_client->dispatchDidLoadMainResource(dl.get()); |
- checkLoadComplete(); |
-} |
- |
-bool FrameLoader::isHostedByObjectElement() const |
-{ |
- HTMLFrameOwnerElement* owner = m_frame->ownerElement(); |
- return owner && owner->hasTagName(objectTag); |
-} |
- |
-bool FrameLoader::isLoadingMainFrame() const |
-{ |
- Page* page = m_frame->page(); |
- return page && m_frame == page->mainFrame(); |
-} |
- |
-bool FrameLoader::canShowMIMEType(const String& MIMEType) const |
-{ |
- return m_client->canShowMIMEType(MIMEType); |
-} |
- |
-bool FrameLoader::representationExistsForURLScheme(const String& URLScheme) |
-{ |
- return m_client->representationExistsForURLScheme(URLScheme); |
-} |
- |
-String FrameLoader::generatedMIMETypeForURLScheme(const String& URLScheme) |
-{ |
- return m_client->generatedMIMETypeForURLScheme(URLScheme); |
-} |
- |
-void FrameLoader::cancelContentPolicyCheck() |
-{ |
- m_client->cancelPolicyCheck(); |
- m_policyCheck.clear(); |
-} |
- |
-void FrameLoader::didReceiveServerRedirectForProvisionalLoadForFrame() |
-{ |
- m_client->dispatchDidReceiveServerRedirectForProvisionalLoad(); |
-} |
- |
-void FrameLoader::finishedLoadingDocument(DocumentLoader* loader) |
-{ |
-#if PLATFORM(WIN) |
- if (m_creatingInitialEmptyDocument) |
- return; |
-#endif |
- |
- // If loading a webarchive, run through webarchive machinery |
- const String& responseMIMEType = loader->responseMIMEType(); |
- |
- // FIXME: Mac's FrameLoaderClient::finishedLoading() method does work that is required even with Archive loads |
- // so we still need to call it. Other platforms should only call finishLoading for non-archive loads |
- // That work should be factored out so this #ifdef can be removed |
-#if PLATFORM(MAC) |
- m_client->finishedLoading(loader); |
- if (!ArchiveFactory::isArchiveMimeType(responseMIMEType)) |
- return; |
-#else |
- if (!ArchiveFactory::isArchiveMimeType(responseMIMEType)) { |
- m_client->finishedLoading(loader); |
- return; |
- } |
-#endif |
- |
- RefPtr<Archive> archive(ArchiveFactory::create(loader->mainResourceData().get(), responseMIMEType)); |
- if (!archive) |
- return; |
- |
- loader->addAllArchiveResources(archive.get()); |
- |
- ArchiveResource* mainResource = archive->mainResource(); |
- loader->setParsedArchiveData(mainResource->data()); |
- continueLoadWithData(mainResource->data(), mainResource->mimeType(), mainResource->textEncoding(), mainResource->url()); |
-} |
- |
-bool FrameLoader::isReplacing() const |
-{ |
- return m_loadType == FrameLoadTypeReplace; |
-} |
- |
-void FrameLoader::setReplacing() |
-{ |
- m_loadType = FrameLoadTypeReplace; |
-} |
- |
-void FrameLoader::revertToProvisional(DocumentLoader* loader) |
-{ |
- m_client->revertToProvisionalState(loader); |
-} |
- |
-bool FrameLoader::subframeIsLoading() const |
-{ |
- // It's most likely that the last added frame is the last to load so we walk backwards. |
- for (Frame* child = m_frame->tree()->lastChild(); child; child = child->tree()->previousSibling()) { |
- FrameLoader* childLoader = child->loader(); |
- DocumentLoader* documentLoader = childLoader->documentLoader(); |
- if (documentLoader && documentLoader->isLoadingInAPISense()) |
- return true; |
- documentLoader = childLoader->provisionalDocumentLoader(); |
- if (documentLoader && documentLoader->isLoadingInAPISense()) |
- return true; |
- } |
- return false; |
-} |
- |
-void FrameLoader::willChangeTitle(DocumentLoader* loader) |
-{ |
- m_client->willChangeTitle(loader); |
-} |
- |
-FrameLoadType FrameLoader::loadType() const |
-{ |
- return m_loadType; |
-} |
- |
-void FrameLoader::stopPolicyCheck() |
-{ |
- m_client->cancelPolicyCheck(); |
- PolicyCheck check = m_policyCheck; |
- m_policyCheck.clear(); |
- check.cancel(); |
-} |
- |
-void FrameLoader::checkLoadCompleteForThisFrame() |
-{ |
- ASSERT(m_client->hasWebView()); |
- |
- switch (m_state) { |
- case FrameStateProvisional: { |
- if (m_delegateIsHandlingProvisionalLoadError) |
- return; |
- |
- RefPtr<DocumentLoader> pdl = m_provisionalDocumentLoader; |
- if (!pdl) |
- return; |
- |
- // If we've received any errors we may be stuck in the provisional state and actually complete. |
- const ResourceError& error = pdl->mainDocumentError(); |
- if (error.isNull()) |
- return; |
- |
- // Check all children first. |
- RefPtr<HistoryItem> item; |
- if (Page* page = m_frame->page()) |
- if (isBackForwardLoadType(loadType()) && m_frame == page->mainFrame()) |
- item = m_currentHistoryItem; |
- |
- bool shouldReset = true; |
- if (!pdl->isLoadingInAPISense()) { |
- m_delegateIsHandlingProvisionalLoadError = true; |
- m_client->dispatchDidFailProvisionalLoad(error); |
- m_delegateIsHandlingProvisionalLoadError = false; |
- |
- // FIXME: can stopping loading here possibly have any effect, if isLoading is false, |
- // which it must be to be in this branch of the if? And is it OK to just do a full-on |
- // stopAllLoaders instead of stopLoadingSubframes? |
- stopLoadingSubframes(); |
- pdl->stopLoading(); |
- |
- // Finish resetting the load state, but only if another load hasn't been started by the |
- // delegate callback. |
- if (pdl == m_provisionalDocumentLoader) |
- clearProvisionalLoad(); |
- else if (m_provisionalDocumentLoader) { |
- KURL unreachableURL = m_provisionalDocumentLoader->unreachableURL(); |
- if (!unreachableURL.isEmpty() && unreachableURL == pdl->request().url()) |
- shouldReset = false; |
- } |
- } |
- if (shouldReset && item) |
- if (Page* page = m_frame->page()) |
- page->backForwardList()->goToItem(item.get()); |
- return; |
- } |
- |
- case FrameStateCommittedPage: { |
- DocumentLoader* dl = m_documentLoader.get(); |
- if (!dl || dl->isLoadingInAPISense()) |
- return; |
- |
- markLoadComplete(); |
- |
- // FIXME: Is this subsequent work important if we already navigated away? |
- // Maybe there are bugs because of that, or extra work we can skip because |
- // the new page is ready. |
- |
- m_client->forceLayoutForNonHTML(); |
- |
- // If the user had a scroll point, scroll to it, overriding the anchor point if any. |
- if (Page* page = m_frame->page()) |
- if ((isBackForwardLoadType(m_loadType) || m_loadType == FrameLoadTypeReload) && page->backForwardList()) |
- restoreScrollPositionAndViewState(); |
- |
- if (m_creatingInitialEmptyDocument || !m_committedFirstRealDocumentLoad) |
- return; |
- |
- const ResourceError& error = dl->mainDocumentError(); |
-#ifndef NDEBUG |
- m_didDispatchDidCommitLoad = false; |
-#endif |
- if (!error.isNull()) |
- m_client->dispatchDidFailLoad(error); |
- else |
- m_client->dispatchDidFinishLoad(); |
- |
- if (Page* page = m_frame->page()) |
- page->progress()->progressCompleted(m_frame); |
- return; |
- } |
- |
- case FrameStateComplete: |
- // Even if already complete, we might have set a previous item on a frame that |
- // didn't do any data loading on the past transaction. Make sure to clear these out. |
- m_client->frameLoadCompleted(); |
- return; |
- } |
- |
- ASSERT_NOT_REACHED(); |
-} |
- |
-void FrameLoader::continueAfterContentPolicy(PolicyAction policy) |
-{ |
- PolicyCheck check = m_policyCheck; |
- m_policyCheck.clear(); |
- check.call(policy); |
-} |
- |
-void FrameLoader::continueLoadAfterWillSubmitForm(PolicyAction) |
-{ |
- if (!m_provisionalDocumentLoader) |
- return; |
- |
- // DocumentLoader calls back to our prepareForLoadStart |
- m_provisionalDocumentLoader->prepareForLoadStart(); |
- |
- // The load might be cancelled inside of prepareForLoadStart(), nulling out the m_provisionalDocumentLoader, |
- // so we need to null check it again. |
- if (!m_provisionalDocumentLoader) |
- return; |
- |
- DocumentLoader* activeDocLoader = activeDocumentLoader(); |
- if (activeDocLoader && activeDocLoader->isLoadingMainResource()) |
- return; |
- |
- m_provisionalDocumentLoader->setLoadingFromCachedPage(false); |
- |
- unsigned long identifier = 0; |
- |
- if (Page* page = m_frame->page()) { |
- identifier = page->progress()->createUniqueIdentifier(); |
- dispatchAssignIdentifierToInitialRequest(identifier, m_provisionalDocumentLoader.get(), m_provisionalDocumentLoader->originalRequest()); |
- } |
- |
- if (!m_provisionalDocumentLoader->startLoadingMainResource(identifier)) |
- m_provisionalDocumentLoader->updateLoading(); |
-} |
- |
-void FrameLoader::didFirstLayout() |
-{ |
- if (Page* page = m_frame->page()) |
- if (isBackForwardLoadType(m_loadType) && page->backForwardList()) |
- restoreScrollPositionAndViewState(); |
- |
- m_firstLayoutDone = true; |
- m_client->dispatchDidFirstLayout(); |
-} |
- |
-void FrameLoader::frameLoadCompleted() |
-{ |
- m_client->frameLoadCompleted(); |
- |
- // After a canceled provisional load, firstLayoutDone is false. |
- // Reset it to true if we're displaying a page. |
- if (m_documentLoader) |
- m_firstLayoutDone = true; |
-} |
- |
-bool FrameLoader::firstLayoutDone() const |
-{ |
- return m_firstLayoutDone; |
-} |
- |
-bool FrameLoader::isQuickRedirectComing() const |
-{ |
- return m_quickRedirectComing; |
-} |
- |
-void FrameLoader::detachChildren() |
-{ |
- // FIXME: Is it really necessary to do this in reverse order? |
- Frame* previous; |
- for (Frame* child = m_frame->tree()->lastChild(); child; child = previous) { |
- previous = child->tree()->previousSibling(); |
- child->loader()->detachFromParent(); |
- } |
-} |
- |
-void FrameLoader::recursiveCheckLoadComplete() |
-{ |
- Vector<RefPtr<Frame>, 10> frames; |
- |
- for (RefPtr<Frame> frame = m_frame->tree()->firstChild(); frame; frame = frame->tree()->nextSibling()) |
- frames.append(frame); |
- |
- unsigned size = frames.size(); |
- for (unsigned i = 0; i < size; i++) |
- frames[i]->loader()->recursiveCheckLoadComplete(); |
- |
- checkLoadCompleteForThisFrame(); |
-} |
- |
-// Called every time a resource is completely loaded, or an error is received. |
-void FrameLoader::checkLoadComplete() |
-{ |
- ASSERT(m_client->hasWebView()); |
- |
- // FIXME: Always traversing the entire frame tree is a bit inefficient, but |
- // is currently needed in order to null out the previous history item for all frames. |
- if (Page* page = m_frame->page()) |
- page->mainFrame()->loader()->recursiveCheckLoadComplete(); |
-} |
- |
-int FrameLoader::numPendingOrLoadingRequests(bool recurse) const |
-{ |
- if (!recurse) |
- return numRequests(m_frame->document()); |
- |
- int count = 0; |
- for (Frame* frame = m_frame; frame; frame = frame->tree()->traverseNext(m_frame)) |
- count += numRequests(frame->document()); |
- return count; |
-} |
- |
-FrameLoaderClient* FrameLoader::client() const |
-{ |
- return m_client; |
-} |
- |
-void FrameLoader::submitForm(const FrameLoadRequest& request, Event* event) |
-{ |
- // FIXME: We'd like to remove this altogether and fix the multiple form submission issue another way. |
- // We do not want to submit more than one form from the same page, |
- // nor do we want to submit a single form more than once. |
- // This flag prevents these from happening; not sure how other browsers prevent this. |
- // The flag is reset in each time we start handle a new mouse or key down event, and |
- // also in setView since this part may get reused for a page from the back/forward cache. |
- // The form multi-submit logic here is only needed when we are submitting a form that affects this frame. |
- // FIXME: Frame targeting is only one of the ways the submission could end up doing something other |
- // than replacing this frame's content, so this check is flawed. On the other hand, the check is hardly |
- // needed any more now that we reset m_submittedFormURL on each mouse or key down event. |
- Frame* target = m_frame->tree()->find(request.frameName()); |
- if (target && m_frame->tree()->isDescendantOf(target)) { |
- if (m_submittedFormURL == request.resourceRequest().url()) |
- return; |
- m_submittedFormURL = request.resourceRequest().url(); |
- } |
- |
- // FIXME: We should probably call userGestureHint() to tell whether this form submission was the result of a user gesture. |
- loadFrameRequestWithFormAndValues(request, false, event, m_formAboutToBeSubmitted.get(), m_formValuesAboutToBeSubmitted); |
- |
- clearRecordedFormValues(); |
-} |
- |
-String FrameLoader::userAgent(const KURL& url) const |
-{ |
- return m_client->userAgent(url); |
-} |
- |
-void FrameLoader::tokenizerProcessedData() |
-{ |
-// ASSERT(m_frame->page()); |
-// ASSERT(m_frame->document()); |
- |
- checkCompleted(); |
-} |
- |
-void FrameLoader::didTellClientAboutLoad(const String& url) |
-{ |
-#if 0 |
- // This hash table is unused in our fork. The only reader is |
- // haveToldClientAboutLoad, and the only caller of that is |
- // loadedResourceFromMemoryCache. We have commented out that location |
- // because we want to send every URL to the client for mixed content |
- // detection. Therefore, this hash table is unused. |
- // |
- // The table stores every URL ever loaded, or which has been attempted to be |
- // loaded by a frame. For some apps like gmail, this can get into the |
- // thousands after it has been running for a while. With Gmail URLs often |
- // being more than 100 characters (and 2-bytes per char in a String), this |
- // can quickly use a lot of memory we don't need. |
- m_urlsClientKnowsAbout.add(url); |
-#endif |
-} |
- |
-bool FrameLoader::haveToldClientAboutLoad(const String& url) |
-{ |
-#if 0 |
- // See didTellClientAboutLoad() above for why this is removed in our fork. |
- // This is commented out for consistency only. All lookups will fail anyway. |
- return m_urlsClientKnowsAbout.contains(url); |
-#else |
- return false; |
-#endif |
-} |
- |
-void FrameLoader::handledOnloadEvents() |
-{ |
- m_client->dispatchDidHandleOnloadEvents(); |
-} |
- |
-void FrameLoader::frameDetached() |
-{ |
- stopAllLoaders(); |
- detachFromParent(); |
-} |
- |
-void FrameLoader::detachFromParent() |
-{ |
- RefPtr<Frame> protect(m_frame); |
- |
- closeURL(); |
- stopAllLoaders(); |
- saveScrollPositionAndViewStateToItem(currentHistoryItem()); |
- detachChildren(); |
- |
- if (Page* page = m_frame->page()) |
- page->inspectorController()->frameDetachedFromParent(m_frame); |
- |
- m_client->detachedFromParent2(); |
- setDocumentLoader(0); |
- m_client->detachedFromParent3(); |
- if (Frame* parent = m_frame->tree()->parent()) { |
- parent->tree()->removeChild(m_frame); |
- parent->loader()->scheduleCheckCompleted(); |
- } else { |
- m_frame->setView(0); |
- m_frame->pageDestroyed(); |
- } |
- m_client->detachedFromParent4(); |
-} |
- |
-void FrameLoader::addExtraFieldsToRequest(ResourceRequest& request, bool mainResource, bool alwaysFromRequest) |
-{ |
- applyUserAgent(request); |
- |
- if (m_loadType == FrameLoadTypeReload) { |
- request.setCachePolicy(ReloadIgnoringCacheData); |
- request.setHTTPHeaderField("Cache-Control", "max-age=0"); |
- } |
- |
- // Don't set the cookie policy URL if it's already been set. |
- if (request.mainDocumentURL().isEmpty()) { |
- if (mainResource && (isLoadingMainFrame() || alwaysFromRequest)) |
- request.setMainDocumentURL(request.url()); |
- else if (Page* page = m_frame->page()) |
- request.setMainDocumentURL(page->mainFrame()->loader()->url()); |
- } |
- |
- if (mainResource) |
- request.setHTTPAccept("application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5"); |
-} |
- |
-void FrameLoader::committedLoad(DocumentLoader* loader, const char* data, int length) |
-{ |
- if (ArchiveFactory::isArchiveMimeType(loader->response().mimeType())) |
- return; |
- m_client->committedLoad(loader, data, length); |
-} |
- |
-void FrameLoader::loadPostRequest(const ResourceRequest& inRequest, const String& referrer, const String& frameName, |
- Event* event, PassRefPtr<FormState> prpFormState) |
-{ |
- RefPtr<FormState> formState = prpFormState; |
- |
- // When posting, use the NSURLRequestReloadIgnoringCacheData load flag. |
- // This prevents a potential bug which may cause a page with a form that uses itself |
- // as an action to be returned from the cache without submitting. |
- |
- // FIXME: Where's the code that implements what the comment above says? |
- |
- // Previously when this method was reached, the original FrameLoadRequest had been deconstructed to build a |
- // bunch of parameters that would come in here and then be built back up to a ResourceRequest. In case |
- // any caller depends on the immutability of the original ResourceRequest, I'm rebuilding a ResourceRequest |
- // from scratch as it did all along. |
- const KURL& url = inRequest.url(); |
- RefPtr<FormData> formData = inRequest.httpBody(); |
- const String& contentType = inRequest.httpContentType(); |
- |
- ResourceRequest workingResourceRequest(url); |
- addExtraFieldsToRequest(workingResourceRequest, true, true); |
- |
- if (!referrer.isEmpty()) |
- workingResourceRequest.setHTTPReferrer(referrer); |
- workingResourceRequest.setHTTPMethod("POST"); |
- workingResourceRequest.setHTTPBody(formData); |
- workingResourceRequest.setHTTPContentType(contentType); |
- |
- NavigationAction action(url, FrameLoadTypeStandard, true, event); |
- |
- if (!frameName.isEmpty()) { |
- if (Frame* targetFrame = findFrameForNavigation(frameName)) |
- targetFrame->loader()->loadWithNavigationAction(workingResourceRequest, action, FrameLoadTypeStandard, formState.release()); |
- else |
- checkNewWindowPolicy(action, workingResourceRequest, formState.release(), frameName); |
- } else |
- loadWithNavigationAction(workingResourceRequest, action, FrameLoadTypeStandard, formState.release()); |
-} |
- |
-bool FrameLoader::isReloading() const |
-{ |
- return documentLoader()->request().cachePolicy() == ReloadIgnoringCacheData; |
-} |
- |
-void FrameLoader::loadEmptyDocumentSynchronously() |
-{ |
- ResourceRequest request(KURL("")); |
- load(request); |
-} |
- |
-unsigned long FrameLoader::loadResourceSynchronously(const ResourceRequest& request, ResourceError& error, ResourceResponse& response, Vector<char>& data) |
-{ |
- // Since this is a subresource, we can load any URL (we ignore the return value). |
- // But we still want to know whether we should hide the referrer or not, so we call the canLoad method. |
- String referrer = m_outgoingReferrer; |
- if (shouldHideReferrer(request.url(), referrer)) |
- referrer = String(); |
- |
- ResourceRequest initialRequest = request; |
- initialRequest.setTimeoutInterval(10); |
- |
- if (initialRequest.isConditional()) |
- initialRequest.setCachePolicy(ReloadIgnoringCacheData); |
- else |
- initialRequest.setCachePolicy(documentLoader()->request().cachePolicy()); |
- |
- if (!referrer.isEmpty()) |
- initialRequest.setHTTPReferrer(referrer); |
- |
- if (Page* page = m_frame->page()) |
- initialRequest.setMainDocumentURL(page->mainFrame()->loader()->documentLoader()->request().url()); |
- initialRequest.setHTTPUserAgent(client()->userAgent(request.url())); |
- |
- unsigned long identifier = 0; |
- ResourceRequest newRequest(initialRequest); |
- requestFromDelegate(newRequest, identifier, error); |
- |
- if (error.isNull()) { |
- ASSERT(!newRequest.isNull()); |
- didTellClientAboutLoad(newRequest.url().string()); |
- |
-#if ENABLE(OFFLINE_WEB_APPLICATIONS) |
- ApplicationCacheResource* resource; |
- if (documentLoader()->shouldLoadResourceFromApplicationCache(newRequest, resource)) { |
- if (resource) { |
- response = resource->response(); |
- data.append(resource->data()->data(), resource->data()->size()); |
- } else |
- error = cannotShowURLError(newRequest); |
- } else |
-#endif |
- ResourceHandle::loadResourceSynchronously(newRequest, error, response, data, m_frame); |
- } |
- |
- sendRemainingDelegateMessages(identifier, response, data.size(), error); |
- return identifier; |
-} |
- |
-void FrameLoader::assignIdentifierToInitialRequest(unsigned long identifier, const ResourceRequest& clientRequest) |
-{ |
- return dispatchAssignIdentifierToInitialRequest(identifier, activeDocumentLoader(), clientRequest); |
-} |
- |
-void FrameLoader::willSendRequest(ResourceLoader* loader, ResourceRequest& clientRequest, const ResourceResponse& redirectResponse) |
-{ |
- applyUserAgent(clientRequest); |
- dispatchWillSendRequest(loader->documentLoader(), loader->identifier(), clientRequest, redirectResponse); |
-} |
- |
-void FrameLoader::didReceiveResponse(ResourceLoader* loader, const ResourceResponse& r) |
-{ |
- activeDocumentLoader()->addResponse(r); |
- |
- if (Page* page = m_frame->page()) |
- page->progress()->incrementProgress(loader->identifier(), r); |
- dispatchDidReceiveResponse(loader->documentLoader(), loader->identifier(), r); |
-} |
- |
-void FrameLoader::didReceiveData(ResourceLoader* loader, const char* data, int length, int lengthReceived) |
-{ |
- if (Page* page = m_frame->page()) |
- page->progress()->incrementProgress(loader->identifier(), data, length); |
- dispatchDidReceiveContentLength(loader->documentLoader(), loader->identifier(), lengthReceived); |
-} |
- |
-void FrameLoader::didFailToLoad(ResourceLoader* loader, const ResourceError& error) |
-{ |
- if (Page* page = m_frame->page()) |
- page->progress()->completeProgress(loader->identifier()); |
- if (!error.isNull()) |
- m_client->dispatchDidFailLoading(loader->documentLoader(), loader->identifier(), error); |
-} |
- |
-const ResourceRequest& FrameLoader::originalRequest() const |
-{ |
- return activeDocumentLoader()->originalRequestCopy(); |
-} |
- |
-void FrameLoader::receivedMainResourceError(const ResourceError& error, bool isComplete) |
-{ |
- // Retain because the stop may release the last reference to it. |
- RefPtr<Frame> protect(m_frame); |
- |
- RefPtr<DocumentLoader> loader = activeDocumentLoader(); |
- |
- if (isComplete) { |
- // FIXME: Don't want to do this if an entirely new load is going, so should check |
- // that both data sources on the frame are either this or nil. |
- stop(); |
- if (m_client->shouldFallBack(error)) |
- handleFallbackContent(); |
- } |
- |
- if (m_state == FrameStateProvisional && m_provisionalDocumentLoader) { |
- KURL failedURL = m_provisionalDocumentLoader->originalRequestCopy().url(); |
- didNotOpenURL(failedURL); |
- |
- // We might have made a page cache item, but now we're bailing out due to an error before we ever |
- // transitioned to the new page (before WebFrameState == commit). The goal here is to restore any state |
- // so that the existing view (that wenever got far enough to replace) can continue being used. |
- invalidateCurrentItemCachedPage(); |
- |
- // Call clientRedirectCancelledOrFinished here so that the frame load delegate is notified that the redirect's |
- // status has changed, if there was a redirect. The frame load delegate may have saved some state about |
- // the redirect in its -webView:willPerformClientRedirectToURL:delay:fireDate:forFrame:. Since we are definitely |
- // not going to use this provisional resource, as it was cancelled, notify the frame load delegate that the redirect |
- // has ended. |
- if (m_sentRedirectNotification) |
- clientRedirectCancelledOrFinished(false); |
- } |
- |
- |
- loader->mainReceivedError(error, isComplete); |
-} |
- |
-void FrameLoader::callContinueFragmentScrollAfterNavigationPolicy(void* argument, |
- const ResourceRequest& request, PassRefPtr<FormState>, bool shouldContinue) |
-{ |
- FrameLoader* loader = static_cast<FrameLoader*>(argument); |
- loader->continueFragmentScrollAfterNavigationPolicy(request, shouldContinue); |
-} |
- |
-void FrameLoader::continueFragmentScrollAfterNavigationPolicy(const ResourceRequest& request, bool shouldContinue) |
-{ |
- // FIXME: |
- // some functions check m_quickRedirectComing, and others check for |
- // FrameLoadTypeRedirectWithLockedHistory. |
- bool isRedirect = m_quickRedirectComing || m_policyLoadType == FrameLoadTypeRedirectWithLockedHistory; |
- m_quickRedirectComing = false; |
- |
- if (!shouldContinue) |
- return; |
- |
- KURL url = request.url(); |
- |
- m_documentLoader->replaceRequestURLForAnchorScroll(url); |
- if (!isRedirect && !shouldTreatURLAsSameAsCurrent(url)) { |
- // NB: must happen after _setURL, since we add based on the current request. |
- // Must also happen before we openURL and displace the scroll position, since |
- // adding the BF item will save away scroll state. |
- |
- // NB2: If we were loading a long, slow doc, and the user anchor nav'ed before |
- // it was done, currItem is now set the that slow doc, and prevItem is whatever was |
- // before it. Adding the b/f item will bump the slow doc down to prevItem, even |
- // though its load is not yet done. I think this all works out OK, for one because |
- // we have already saved away the scroll and doc state for the long slow load, |
- // but it's not an obvious case. |
- |
- addHistoryItemForFragmentScroll(); |
- } |
- |
- scrollToAnchor(url); |
- |
- if (!isRedirect) |
- // This will clear previousItem from the rest of the frame tree that didn't |
- // doing any loading. We need to make a pass on this now, since for anchor nav |
- // we'll not go through a real load and reach Completed state. |
- checkLoadComplete(); |
- |
- m_client->dispatchDidChangeLocationWithinPage(); |
- m_client->didFinishLoad(); |
-} |
- |
-bool FrameLoader::shouldScrollToAnchor(bool isFormSubmission, FrameLoadType loadType, const KURL& url) |
-{ |
- // Should we do anchor navigation within the existing content? |
- |
- // We don't do this if we are submitting a form, explicitly reloading, |
- // currently displaying a frameset, or if the URL does not have a fragment. |
- // These rules were originally based on what KHTML was doing in KHTMLPart::openURL. |
- |
- // FIXME: What about load types other than Standard and Reload? |
- |
- return !isFormSubmission |
- && loadType != FrameLoadTypeReload |
- && loadType != FrameLoadTypeSame |
- && !shouldReload(this->url(), url) |
- // We don't want to just scroll if a link from within a |
- // frameset is trying to reload the frameset into _top. |
- && !m_frame->isFrameSet(); |
-} |
- |
-void FrameLoader::opened() |
-{ |
- if (m_loadType == FrameLoadTypeStandard && m_documentLoader->isClientRedirect()) |
- updateHistoryForClientRedirect(); |
- |
- if (m_documentLoader->isLoadingFromCachedPage()) { |
- m_frame->document()->didRestoreFromCache(); |
- |
- // Force a layout to update view size and thereby update scrollbars. |
- m_client->forceLayout(); |
- |
- const ResponseVector& responses = m_documentLoader->responses(); |
- size_t count = responses.size(); |
- for (size_t i = 0; i < count; i++) { |
- const ResourceResponse& response = responses[i]; |
- // FIXME: If the WebKit client changes or cancels the request, this is not respected. |
- ResourceError error; |
- unsigned long identifier; |
- ResourceRequest request(response.url()); |
- requestFromDelegate(request, identifier, error); |
- // FIXME: If we get a resource with more than 2B bytes, this code won't do the right thing. |
- // However, with today's computers and networking speeds, this won't happen in practice. |
- // Could be an issue with a giant local file. |
- sendRemainingDelegateMessages(identifier, response, static_cast<int>(response.expectedContentLength()), error); |
- } |
- |
- pageCache()->remove(m_currentHistoryItem.get()); |
- |
- m_documentLoader->setPrimaryLoadComplete(true); |
- |
- // FIXME: Why only this frame and not parent frames? |
- checkLoadCompleteForThisFrame(); |
- } |
-} |
- |
-void FrameLoader::checkNewWindowPolicy(const NavigationAction& action, const ResourceRequest& request, |
- PassRefPtr<FormState> formState, const String& frameName) |
-{ |
- m_policyCheck.set(request, formState, frameName, |
- callContinueLoadAfterNewWindowPolicy, this); |
- m_client->dispatchDecidePolicyForNewWindowAction(&FrameLoader::continueAfterNewWindowPolicy, |
- action, request, formState, frameName); |
-} |
- |
-void FrameLoader::continueAfterNewWindowPolicy(PolicyAction policy) |
-{ |
- PolicyCheck check = m_policyCheck; |
- m_policyCheck.clear(); |
- |
- switch (policy) { |
- case PolicyIgnore: |
- check.clearRequest(); |
- break; |
- case PolicyDownload: |
- m_client->startDownload(check.request()); |
- check.clearRequest(); |
- break; |
- case PolicyUse: |
- break; |
- } |
- |
- check.call(policy == PolicyUse); |
-} |
- |
-void FrameLoader::checkNavigationPolicy(const ResourceRequest& request, DocumentLoader* loader, |
- PassRefPtr<FormState> formState, NavigationPolicyDecisionFunction function, void* argument) |
-{ |
- NavigationAction action = loader->triggeringAction(); |
- if (action.isEmpty()) { |
- action = NavigationAction(request.url(), NavigationTypeOther); |
- loader->setTriggeringAction(action); |
- } |
- |
- // Don't ask more than once for the same request or if we are loading an empty URL. |
- // This avoids confusion on the part of the client. |
- if (equalIgnoringHeaderFields(request, loader->lastCheckedRequest()) || (!request.isNull() && request.url().isEmpty())) { |
- function(argument, request, 0, true); |
- loader->setLastCheckedRequest(request); |
- return; |
- } |
- |
- // We are always willing to show alternate content for unreachable URLs; |
- // treat it like a reload so it maintains the right state for b/f list. |
- if (loader->substituteData().isValid() && !loader->substituteData().failingURL().isEmpty()) { |
- if (isBackForwardLoadType(m_policyLoadType)) |
- m_policyLoadType = FrameLoadTypeReload; |
- function(argument, request, 0, true); |
- return; |
- } |
- |
- loader->setLastCheckedRequest(request); |
- |
- m_policyCheck.set(request, formState.get(), function, argument); |
- |
- m_delegateIsDecidingNavigationPolicy = true; |
- m_client->dispatchDecidePolicyForNavigationAction(&FrameLoader::continueAfterNavigationPolicy, |
- action, request, formState); |
- m_delegateIsDecidingNavigationPolicy = false; |
-} |
- |
-void FrameLoader::continueAfterNavigationPolicy(PolicyAction policy) |
-{ |
- PolicyCheck check = m_policyCheck; |
- m_policyCheck.clear(); |
- |
- bool shouldContinue = policy == PolicyUse; |
- |
- switch (policy) { |
- case PolicyIgnore: |
- check.clearRequest(); |
- break; |
- case PolicyDownload: |
- m_client->startDownload(check.request()); |
- check.clearRequest(); |
- break; |
- case PolicyUse: { |
- ResourceRequest request(check.request()); |
- |
- if (!m_client->canHandleRequest(request)) { |
- handleUnimplementablePolicy(m_client->cannotShowURLError(check.request())); |
- check.clearRequest(); |
- shouldContinue = false; |
- } |
- break; |
- } |
- } |
- |
- check.call(shouldContinue); |
-} |
- |
-void FrameLoader::callContinueLoadAfterNavigationPolicy(void* argument, |
- const ResourceRequest& request, PassRefPtr<FormState> formState, bool shouldContinue) |
-{ |
- FrameLoader* loader = static_cast<FrameLoader*>(argument); |
- loader->continueLoadAfterNavigationPolicy(request, formState, shouldContinue); |
-} |
- |
-void FrameLoader::continueLoadAfterNavigationPolicy(const ResourceRequest& request, PassRefPtr<FormState> formState, bool shouldContinue) |
-{ |
- // If we loaded an alternate page to replace an unreachableURL, we'll get in here with a |
- // nil policyDataSource because loading the alternate page will have passed |
- // through this method already, nested; otherwise, policyDataSource should still be set. |
- ASSERT(m_policyDocumentLoader || !m_provisionalDocumentLoader->unreachableURL().isEmpty()); |
- |
- bool isTargetItem = m_provisionalHistoryItem ? m_provisionalHistoryItem->isTargetItem() : false; |
- |
- // Two reasons we can't continue: |
- // 1) Navigation policy delegate said we can't so request is nil. A primary case of this |
- // is the user responding Cancel to the form repost nag sheet. |
- // 2) User responded Cancel to an alert popped up by the before unload event handler. |
- // The "before unload" event handler runs only for the main frame. |
- bool canContinue = shouldContinue && (!isLoadingMainFrame() || m_frame->shouldClose()); |
- |
- if (!canContinue) { |
- // If we were waiting for a quick redirect, but the policy delegate decided to ignore it, then we |
- // need to report that the client redirect was cancelled. |
- if (m_quickRedirectComing) |
- clientRedirectCancelledOrFinished(false); |
- |
- setPolicyDocumentLoader(0); |
- |
- // If the navigation request came from the back/forward menu, and we punt on it, we have the |
- // problem that we have optimistically moved the b/f cursor already, so move it back. For sanity, |
- // we only do this when punting a navigation for the target frame or top-level frame. |
- if ((isTargetItem || isLoadingMainFrame()) && isBackForwardLoadType(m_policyLoadType)) |
- if (Page* page = m_frame->page()) { |
- Frame* mainFrame = page->mainFrame(); |
- if (HistoryItem* resetItem = mainFrame->loader()->m_currentHistoryItem.get()) |
- page->backForwardList()->goToItem(resetItem); |
- } |
- return; |
- } |
- |
- FrameLoadType type = m_policyLoadType; |
- stopAllLoaders(); |
- setProvisionalDocumentLoader(m_policyDocumentLoader.get()); |
- m_loadType = type; |
- setState(FrameStateProvisional); |
- |
- setPolicyDocumentLoader(0); |
- |
- if (isBackForwardLoadType(type) && loadProvisionalItemFromCachedPage()) |
- return; |
- |
- if (formState) |
- m_client->dispatchWillSubmitForm(&FrameLoader::continueLoadAfterWillSubmitForm, formState); |
- else |
- continueLoadAfterWillSubmitForm(); |
-} |
- |
- |
-void FrameLoader::callContinueLoadAfterNewWindowPolicy(void* argument, |
- const ResourceRequest& request, PassRefPtr<FormState> formState, const String& frameName, bool shouldContinue) |
-{ |
- FrameLoader* loader = static_cast<FrameLoader*>(argument); |
- loader->continueLoadAfterNewWindowPolicy(request, formState, frameName, shouldContinue); |
-} |
- |
-void FrameLoader::continueLoadAfterNewWindowPolicy(const ResourceRequest& request, |
- PassRefPtr<FormState> formState, const String& frameName, bool shouldContinue) |
-{ |
- if (!shouldContinue) |
- return; |
- |
- RefPtr<Frame> frame = m_frame; |
- RefPtr<Frame> mainFrame = m_client->dispatchCreatePage(); |
- if (!mainFrame) |
- return; |
- |
- if (frameName != "_blank") |
- mainFrame->tree()->setName(frameName); |
- |
- mainFrame->loader()->setOpenedByDOM(); |
- mainFrame->loader()->m_client->dispatchShow(); |
- mainFrame->loader()->setOpener(frame.get()); |
- mainFrame->loader()->loadWithNavigationAction(request, NavigationAction(), FrameLoadTypeStandard, formState); |
-} |
- |
-void FrameLoader::sendRemainingDelegateMessages(unsigned long identifier, const ResourceResponse& response, int length, const ResourceError& error) |
-{ |
- if (!response.isNull()) |
- dispatchDidReceiveResponse(m_documentLoader.get(), identifier, response); |
- |
- if (length > 0) |
- dispatchDidReceiveContentLength(m_documentLoader.get(), identifier, length); |
- |
- if (error.isNull()) |
- dispatchDidFinishLoading(m_documentLoader.get(), identifier); |
- else |
- m_client->dispatchDidFailLoading(m_documentLoader.get(), identifier, error); |
-} |
- |
-void FrameLoader::requestFromDelegate(ResourceRequest& request, unsigned long& identifier, ResourceError& error) |
-{ |
- ASSERT(!request.isNull()); |
- |
- identifier = 0; |
- if (Page* page = m_frame->page()) { |
- identifier = page->progress()->createUniqueIdentifier(); |
- dispatchAssignIdentifierToInitialRequest(identifier, m_documentLoader.get(), request); |
- } |
- |
- ResourceRequest newRequest(request); |
- dispatchWillSendRequest(m_documentLoader.get(), identifier, newRequest, ResourceResponse()); |
- |
- if (newRequest.isNull()) |
- error = cancelledError(request); |
- else |
- error = ResourceError(); |
- |
- request = newRequest; |
-} |
- |
-void FrameLoader::loadedResourceFromMemoryCache(const CachedResource* resource) |
-{ |
- ResourceRequest request(resource->url()); |
- const ResourceResponse& response = resource->response(); |
- int length = resource->encodedSize(); |
- |
- if (Page* page = m_frame->page()) |
- page->inspectorController()->didLoadResourceFromMemoryCache(m_documentLoader.get(), request, response, length); |
- |
- |
-#if 0 |
- // The following test prevents reporting a resource has been loaded from |
- // the cache as CachedResource.m_sendResourceLoadCallbacks is always false. |
- // Also, haveToldClientAboutLoad() and didTellClientAboutLoad() would cause |
- // dispatchDidLoadResourceFromMemoryCache() to be invoked only the first |
- // time the resource is loaded from the cache. |
- // We want to be notified every time a resource is loaded from the cache |
- // (this is needed to detect mixed-contents), so we removed it. |
- |
- if (!resource->sendResourceLoadCallbacks() || haveToldClientAboutLoad(resource->url())) |
- return; |
-#endif |
- |
- if (m_client->dispatchDidLoadResourceFromMemoryCache(m_documentLoader.get(), request, response, length)) { |
- didTellClientAboutLoad(resource->url()); |
- return; |
- } |
- |
- unsigned long identifier; |
- ResourceError error; |
- ResourceRequest r(request); |
- requestFromDelegate(r, identifier, error); |
- sendRemainingDelegateMessages(identifier, response, length, error); |
- |
- didTellClientAboutLoad(resource->url()); |
-} |
- |
-void FrameLoader::applyUserAgent(ResourceRequest& request) |
-{ |
- String userAgent = client()->userAgent(request.url()); |
- ASSERT(!userAgent.isNull()); |
- request.setHTTPUserAgent(userAgent); |
-} |
- |
-bool FrameLoader::canGoBackOrForward(int distance) const |
-{ |
- if (Page* page = m_frame->page()) { |
- if (distance == 0) |
- return true; |
- if (distance > 0 && distance <= page->backForwardList()->forwardListCount()) |
- return true; |
- if (distance < 0 && -distance <= page->backForwardList()->backListCount()) |
- return true; |
- } |
- return false; |
-} |
- |
-int FrameLoader::getHistoryLength() |
-{ |
- if (Page* page = m_frame->page()) |
- return page->backForwardList()->backListCount() + 1; |
- return 0; |
-} |
- |
-KURL FrameLoader::historyURL(int distance) |
-{ |
- if (Page* page = m_frame->page()) { |
- BackForwardList* list = page->backForwardList(); |
- HistoryItem* item = list->itemAtIndex(distance); |
- if (!item) { |
- if (distance > 0) { |
- int forwardListCount = list->forwardListCount(); |
- if (forwardListCount > 0) |
- item = list->itemAtIndex(forwardListCount); |
- } else { |
- int backListCount = list->backListCount(); |
- if (backListCount > 0) |
- item = list->itemAtIndex(-backListCount); |
- } |
- } |
- if (item) |
- return item->url(); |
- } |
- return KURL(); |
-} |
- |
-void FrameLoader::addHistoryItemForFragmentScroll() |
-{ |
- addBackForwardItemClippedAtTarget(false); |
-} |
- |
-bool FrameLoader::loadProvisionalItemFromCachedPage() |
-{ |
- RefPtr<CachedPage> cachedPage = pageCache()->get(m_provisionalHistoryItem.get()); |
- if (!cachedPage || !cachedPage->document()) |
- return false; |
- provisionalDocumentLoader()->loadFromCachedPage(cachedPage.release()); |
- return true; |
-} |
- |
-void FrameLoader::cachePageForHistoryItem(HistoryItem* item) |
-{ |
- if (Page* page = m_frame->page()) { |
- RefPtr<CachedPage> cachedPage = CachedPage::create(page); |
- cachedPage->setTimeStampToNow(); |
- cachedPage->setDocumentLoader(documentLoader()); |
- m_client->savePlatformDataToCachedPage(cachedPage.get()); |
- |
- pageCache()->add(item, cachedPage.release()); |
- } |
-} |
- |
-bool FrameLoader::shouldTreatURLAsSameAsCurrent(const KURL& url) const |
-{ |
- if (!m_currentHistoryItem) |
- return false; |
- return url == m_currentHistoryItem->url() || url == m_currentHistoryItem->originalURL(); |
-} |
- |
-PassRefPtr<HistoryItem> FrameLoader::createHistoryItem(bool useOriginal) |
-{ |
- DocumentLoader* docLoader = documentLoader(); |
- |
- KURL unreachableURL = docLoader ? docLoader->unreachableURL() : KURL(); |
- |
- KURL url; |
- KURL originalURL; |
- |
- if (!unreachableURL.isEmpty()) { |
- url = unreachableURL; |
- originalURL = unreachableURL; |
- } else { |
- originalURL = docLoader ? docLoader->originalURL() : KURL(); |
- if (useOriginal) |
- url = originalURL; |
- else if (docLoader) |
- url = docLoader->requestURL(); |
- } |
- |
- LOG(History, "WebCoreHistory: Creating item for %s", url.string().ascii().data()); |
- |
- // Frames that have never successfully loaded any content |
- // may have no URL at all. Currently our history code can't |
- // deal with such things, so we nip that in the bud here. |
- // Later we may want to learn to live with nil for URL. |
- // See bug 3368236 and related bugs for more information. |
- if (url.isEmpty()) |
- url = blankURL(); |
- if (originalURL.isEmpty()) |
- originalURL = blankURL(); |
- |
- Frame* parentFrame = m_frame->tree()->parent(); |
- String parent = parentFrame ? parentFrame->tree()->name() : ""; |
- String title = docLoader ? docLoader->title() : ""; |
- |
- RefPtr<HistoryItem> item = HistoryItem::create(url, m_frame->tree()->name(), parent, title); |
- item->setOriginalURLString(originalURL.string()); |
- |
- // Save form state if this is a POST |
- if (docLoader) { |
- if (useOriginal) |
- item->setFormInfoFromRequest(docLoader->originalRequest()); |
- else |
- item->setFormInfoFromRequest(docLoader->request()); |
- } |
- |
- // Set the item for which we will save document state |
- m_previousHistoryItem = m_currentHistoryItem; |
- m_currentHistoryItem = item; |
- |
- return item.release(); |
-} |
- |
-void FrameLoader::addBackForwardItemClippedAtTarget(bool doClip) |
-{ |
- Page* page = m_frame->page(); |
- if (!page) |
- return; |
- |
- if (documentLoader()->urlForHistory().isEmpty()) |
- return; |
- |
- Frame* mainFrame = page->mainFrame(); |
- ASSERT(mainFrame); |
- FrameLoader* frameLoader = mainFrame->loader(); |
- |
- if (!frameLoader->m_didPerformFirstNavigation && page->backForwardList()->entries().size() == 1) { |
- frameLoader->m_didPerformFirstNavigation = true; |
- m_client->didPerformFirstNavigation(); |
- } |
- |
- RefPtr<HistoryItem> item = frameLoader->createHistoryItemTree(m_frame, doClip); |
- LOG(BackForward, "WebCoreBackForward - Adding backforward item %p for frame %s", item.get(), documentLoader()->url().string().ascii().data()); |
- page->backForwardList()->addItem(item); |
-} |
- |
-PassRefPtr<HistoryItem> FrameLoader::createHistoryItemTree(Frame* targetFrame, bool clipAtTarget) |
-{ |
- RefPtr<HistoryItem> bfItem = createHistoryItem(m_frame->tree()->parent() ? true : false); |
- if (m_previousHistoryItem) |
- saveScrollPositionAndViewStateToItem(m_previousHistoryItem.get()); |
- if (!(clipAtTarget && m_frame == targetFrame)) { |
- // save frame state for items that aren't loading (khtml doesn't save those) |
- saveDocumentState(); |
- for (Frame* child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling()) { |
- FrameLoader* childLoader = child->loader(); |
- bool hasChildLoaded = childLoader->frameHasLoaded(); |
- |
- // If the child is a frame corresponding to an <object> element that never loaded, |
- // we don't want to create a history item, because that causes fallback content |
- // to be ignored on reload. |
- |
- if (!(!hasChildLoaded && childLoader->isHostedByObjectElement())) |
- bfItem->addChildItem(childLoader->createHistoryItemTree(targetFrame, clipAtTarget)); |
- } |
- } |
- if (m_frame == targetFrame) |
- bfItem->setIsTargetItem(true); |
- return bfItem; |
-} |
- |
-Frame* FrameLoader::findFrameForNavigation(const AtomicString& name) |
-{ |
- Frame* frame = m_frame->tree()->find(name); |
- if (shouldAllowNavigation(frame)) |
- return frame; |
- return 0; |
-} |
- |
-void FrameLoader::saveScrollPositionAndViewStateToItem(HistoryItem* item) |
-{ |
- if (!item || !m_frame->view()) |
- return; |
- |
- item->setScrollPoint(IntPoint(m_frame->view()->contentsX(), m_frame->view()->contentsY())); |
- // FIXME: It would be great to work out a way to put this code in WebCore instead of calling through to the client. |
- m_client->saveViewStateToItem(item); |
-} |
- |
-/* |
- There is a race condition between the layout and load completion that affects restoring the scroll position. |
- We try to restore the scroll position at both the first layout and upon load completion. |
- |
- 1) If first layout happens before the load completes, we want to restore the scroll position then so that the |
- first time we draw the page is already scrolled to the right place, instead of starting at the top and later |
- jumping down. It is possible that the old scroll position is past the part of the doc laid out so far, in |
- which case the restore silent fails and we will fix it in when we try to restore on doc completion. |
- 2) If the layout happens after the load completes, the attempt to restore at load completion time silently |
- fails. We then successfully restore it when the layout happens. |
-*/ |
-void FrameLoader::restoreScrollPositionAndViewState() |
-{ |
- if (!m_committedFirstRealDocumentLoad) |
- return; |
- |
- ASSERT(m_currentHistoryItem); |
- |
- // FIXME: As the ASSERT attests, it seems we should always have a currentItem here. |
- // One counterexample is <rdar://problem/4917290> |
- // For now, to cover this issue in release builds, there is no technical harm to returning |
- // early and from a user standpoint - as in the above radar - the previous page load failed |
- // so there *is* no scroll or view state to restore! |
- if (!m_currentHistoryItem) |
- return; |
- |
- // FIXME: It would be great to work out a way to put this code in WebCore instead of calling |
- // through to the client. It's currently used only for the PDF view on Mac. |
- m_client->restoreViewState(); |
- |
- if (FrameView* view = m_frame->view()) |
- if (!view->wasScrolledByUser()) { |
- const IntPoint& scrollPoint = m_currentHistoryItem->scrollPoint(); |
- view->setContentsPos(scrollPoint.x(), scrollPoint.y()); |
- } |
-} |
- |
-void FrameLoader::invalidateCurrentItemCachedPage() |
-{ |
- // When we are pre-commit, the currentItem is where the pageCache data resides |
- CachedPage* cachedPage = pageCache()->get(m_currentHistoryItem.get()); |
- |
- // FIXME: This is a grotesque hack to fix <rdar://problem/4059059> Crash in RenderFlow::detach |
- // Somehow the PageState object is not properly updated, and is holding onto a stale document. |
- // Both Xcode and FileMaker see this crash, Safari does not. |
- |
- ASSERT(!cachedPage || cachedPage->document() == m_frame->document()); |
- if (cachedPage && cachedPage->document() == m_frame->document()) { |
- cachedPage->document()->setInPageCache(false); |
- cachedPage->clear(); |
- } |
- |
- if (cachedPage) |
- pageCache()->remove(m_currentHistoryItem.get()); |
-} |
- |
-void FrameLoader::saveDocumentState() |
-{ |
- if (m_creatingInitialEmptyDocument) |
- return; |
- |
- // For a standard page load, we will have a previous item set, which will be used to |
- // store the form state. However, in some cases we will have no previous item, and |
- // the current item is the right place to save the state. One example is when we |
- // detach a bunch of frames because we are navigating from a site with frames to |
- // another site. Another is when saving the frame state of a frame that is not the |
- // target of the current navigation (if we even decide to save with that granularity). |
- |
- // Because of previousItem's "masking" of currentItem for this purpose, it's important |
- // that previousItem be cleared at the end of a page transition. We leverage the |
- // checkLoadComplete recursion to achieve this goal. |
- |
- HistoryItem* item = m_previousHistoryItem ? m_previousHistoryItem.get() : m_currentHistoryItem.get(); |
- if (!item) |
- return; |
- |
- Document* document = m_frame->document(); |
- ASSERT(document); |
- |
- if (document && item->isCurrentDocument(document)) { |
- LOG(Loading, "WebCoreLoading %s: saving form state to %p", m_frame->tree()->name().string().utf8().data(), item); |
- item->setDocumentState(document->formElementsState()); |
- } |
-} |
- |
-// Loads content into this frame, as specified by history item |
-void FrameLoader::loadItem(HistoryItem* item, FrameLoadType loadType) |
-{ |
- if (!m_frame->page()) |
- return; |
- |
- KURL itemURL = item->url(); |
- KURL itemOriginalURL = item->originalURL(); |
- KURL currentURL; |
- if (documentLoader()) |
- currentURL = documentLoader()->url(); |
- RefPtr<FormData> formData = item->formData(); |
- |
- // Are we navigating to an anchor within the page? |
- // Note if we have child frames we do a real reload, since the child frames might not |
- // match our current frame structure, or they might not have the right content. We could |
- // check for all that as an additional optimization. |
- // We also do not do anchor-style navigation if we're posting a form. |
- |
- if (!formData && urlsMatchItem(item)) { |
- // Must do this maintenance here, since we don't go through a real page reload |
- saveScrollPositionAndViewStateToItem(m_currentHistoryItem.get()); |
- |
- if (FrameView* view = m_frame->view()) |
- view->setWasScrolledByUser(false); |
- |
- m_currentHistoryItem = item; |
- |
- // FIXME: Form state might need to be saved here too. |
- |
- // We always call scrollToAnchor here, even if the URL doesn't have an |
- // anchor fragment. This is so we'll keep the WebCore Frame's URL up-to-date. |
- scrollToAnchor(item->url()); |
- |
- // must do this maintenance here, since we don't go through a real page reload |
- restoreScrollPositionAndViewState(); |
- |
- // Fake the URL change by updating the data source's request. This will no longer |
- // be necessary if we do the better fix described above. |
- documentLoader()->replaceRequestURLForAnchorScroll(itemURL); |
- |
- m_client->dispatchDidChangeLocationWithinPage(); |
- |
- // FrameLoaderClient::didFinishLoad() tells the internal load delegate the load finished with no error |
- m_client->didFinishLoad(); |
- } else { |
- // Remember this item so we can traverse any child items as child frames load |
- m_provisionalHistoryItem = item; |
- |
- bool inPageCache = false; |
- |
- // Check if we'll be using the page cache. We only use the page cache |
- // if one exists and it is less than _backForwardCacheExpirationInterval |
- // seconds old. If the cache is expired it gets flushed here. |
- if (RefPtr<CachedPage> cachedPage = pageCache()->get(item)) { |
- double interval = currentTime() - cachedPage->timeStamp(); |
- |
- // FIXME: 1800 should not be hardcoded, it should come from |
- // WebKitBackForwardCacheExpirationIntervalKey in WebKit. |
- // Or we should remove WebKitBackForwardCacheExpirationIntervalKey. |
- if (interval <= 1800) { |
- loadWithDocumentLoader(cachedPage->documentLoader(), loadType, 0); |
- inPageCache = true; |
- } else { |
- LOG(PageCache, "Not restoring page for %s from back/forward cache because cache entry has expired", m_provisionalHistoryItem->url().string().ascii().data()); |
- pageCache()->remove(item); |
- } |
- } |
- |
- if (!inPageCache) { |
- ResourceRequest request(itemURL); |
- |
- addExtraFieldsToRequest(request, true, formData); |
- |
- // If this was a repost that failed the page cache, we might try to repost the form. |
- NavigationAction action; |
- if (formData) { |
- |
- formData->generateFiles(m_frame->page()->chrome()->client()); |
- |
- request.setHTTPMethod("POST"); |
- request.setHTTPReferrer(item->formReferrer()); |
- request.setHTTPBody(formData); |
- request.setHTTPContentType(item->formContentType()); |
- |
- // FIXME: Slight hack to test if the NSURL cache contains the page we're going to. |
- // We want to know this before talking to the policy delegate, since it affects whether |
- // we show the DoYouReallyWantToRepost nag. |
- // |
- // This trick has a small bug (3123893) where we might find a cache hit, but then |
- // have the item vanish when we try to use it in the ensuing nav. This should be |
- // extremely rare, but in that case the user will get an error on the navigation. |
- |
- if (ResourceHandle::willLoadFromCache(request)) |
- action = NavigationAction(itemURL, loadType, false); |
- else { |
- request.setCachePolicy(ReloadIgnoringCacheData); |
- action = NavigationAction(itemURL, NavigationTypeFormResubmitted); |
- } |
- } else { |
- switch (loadType) { |
- case FrameLoadTypeReload: |
- request.setCachePolicy(ReloadIgnoringCacheData); |
- break; |
- case FrameLoadTypeBack: |
- case FrameLoadTypeForward: |
- case FrameLoadTypeIndexedBackForward: |
- if (itemURL.protocol() != "https") |
- request.setCachePolicy(ReturnCacheDataElseLoad); |
- break; |
- case FrameLoadTypeStandard: |
- case FrameLoadTypeRedirectWithLockedHistory: |
- // no-op: leave as protocol default |
- // FIXME: I wonder if we ever hit this case |
- break; |
- case FrameLoadTypeSame: |
- case FrameLoadTypeReloadAllowingStaleData: |
- default: |
- ASSERT_NOT_REACHED(); |
- } |
- |
- action = NavigationAction(itemOriginalURL, loadType, false); |
- } |
- |
- loadWithNavigationAction(request, action, loadType, 0); |
- } |
- } |
-} |
- |
-// Walk the frame tree and ensure that the URLs match the URLs in the item. |
-bool FrameLoader::urlsMatchItem(HistoryItem* item) const |
-{ |
- const KURL& currentURL = documentLoader()->url(); |
- if (!equalIgnoringRef(currentURL, item->url())) |
- return false; |
- |
- const HistoryItemVector& childItems = item->children(); |
- |
- unsigned size = childItems.size(); |
- for (unsigned i = 0; i < size; ++i) { |
- Frame* childFrame = m_frame->tree()->child(childItems[i]->target()); |
- if (childFrame && !childFrame->loader()->urlsMatchItem(childItems[i].get())) |
- return false; |
- } |
- |
- return true; |
-} |
- |
-// Main funnel for navigating to a previous location (back/forward, non-search snap-back) |
-// This includes recursion to handle loading into framesets properly |
-void FrameLoader::goToItem(HistoryItem* targetItem, FrameLoadType type) |
-{ |
- ASSERT(!m_frame->tree()->parent()); |
- |
- // shouldGoToHistoryItem is a private delegate method. This is needed to fix: |
- // <rdar://problem/3951283> can view pages from the back/forward cache that should be disallowed by Parental Controls |
- // Ultimately, history item navigations should go through the policy delegate. That's covered in: |
- // <rdar://problem/3979539> back/forward cache navigations should consult policy delegate |
- Page* page = m_frame->page(); |
- if (!page) |
- return; |
- if (!m_client->shouldGoToHistoryItem(targetItem)) |
- return; |
- |
- // Set the BF cursor before commit, which lets the user quickly click back/forward again. |
- // - plus, it only makes sense for the top level of the operation through the frametree, |
- // as opposed to happening for some/one of the page commits that might happen soon |
- BackForwardList* bfList = page->backForwardList(); |
- HistoryItem* currentItem = bfList->currentItem(); |
- bfList->goToItem(targetItem); |
- recursiveGoToItem(targetItem, currentItem, type); |
-} |
- |
-// The general idea here is to traverse the frame tree and the item tree in parallel, |
-// tracking whether each frame already has the content the item requests. If there is |
-// a match (by URL), we just restore scroll position and recurse. Otherwise we must |
-// reload that frame, and all its kids. |
-void FrameLoader::recursiveGoToItem(HistoryItem* item, HistoryItem* fromItem, FrameLoadType type) |
-{ |
- ASSERT(item); |
- ASSERT(fromItem); |
- |
- KURL itemURL = item->url(); |
- KURL currentURL; |
- if (documentLoader()) |
- currentURL = documentLoader()->url(); |
- |
- // Always reload the target frame of the item we're going to. This ensures that we will |
- // do -some- load for the transition, which means a proper notification will be posted |
- // to the app. |
- // The exact URL has to match, including fragment. We want to go through the _load |
- // method, even if to do a within-page navigation. |
- // The current frame tree and the frame tree snapshot in the item have to match. |
- if (!item->isTargetItem() && |
- itemURL == currentURL && |
- ((m_frame->tree()->name().isEmpty() && item->target().isEmpty()) || m_frame->tree()->name() == item->target()) && |
- childFramesMatchItem(item)) |
- { |
- // This content is good, so leave it alone and look for children that need reloading |
- // Save form state (works from currentItem, since prevItem is nil) |
- ASSERT(!m_previousHistoryItem); |
- saveDocumentState(); |
- saveScrollPositionAndViewStateToItem(m_currentHistoryItem.get()); |
- |
- if (FrameView* view = m_frame->view()) |
- view->setWasScrolledByUser(false); |
- |
- m_currentHistoryItem = item; |
- |
- // Restore form state (works from currentItem) |
- restoreDocumentState(); |
- |
- // Restore the scroll position (we choose to do this rather than going back to the anchor point) |
- restoreScrollPositionAndViewState(); |
- |
- const HistoryItemVector& childItems = item->children(); |
- |
- int size = childItems.size(); |
- for (int i = 0; i < size; ++i) { |
- String childName = childItems[i]->target(); |
- HistoryItem* fromChildItem = fromItem->childItemWithName(childName); |
- ASSERT(fromChildItem || fromItem->isTargetItem()); |
- Frame* childFrame = m_frame->tree()->child(childName); |
- ASSERT(childFrame); |
- childFrame->loader()->recursiveGoToItem(childItems[i].get(), fromChildItem, type); |
- } |
- } else { |
- loadItem(item, type); |
- } |
-} |
- |
-// helper method that determines whether the subframes described by the item's subitems |
-// match our own current frameset |
-bool FrameLoader::childFramesMatchItem(HistoryItem* item) const |
-{ |
- const HistoryItemVector& childItems = item->children(); |
- if (childItems.size() != m_frame->tree()->childCount()) |
- return false; |
- |
- unsigned size = childItems.size(); |
- for (unsigned i = 0; i < size; ++i) |
- if (!m_frame->tree()->child(childItems[i]->target())) |
- return false; |
- |
- // Found matches for all item targets |
- return true; |
-} |
- |
-// There are 3 things you might think of as "history", all of which are handled by these functions. |
-// |
-// 1) Back/forward: The m_currentHistoryItem is part of this mechanism. |
-// 2) Global history: Handled by the client. |
-// 3) Visited links: Handled by the PageGroup. |
- |
-void FrameLoader::updateHistoryForStandardLoad() |
-{ |
- LOG(History, "WebCoreHistory: Updating History for Standard Load in frame %s", documentLoader()->url().string().ascii().data()); |
- |
- Settings* settings = m_frame->settings(); |
- bool needPrivacy = !settings || settings->privateBrowsingEnabled(); |
- const KURL& historyURL = documentLoader()->urlForHistory(); |
- |
- // If the navigation occured during load and this is a subframe, update the current |
- // back/forward item rather than adding a new one and don't add the new URL to global |
- // history at all. But do add it to visited links. <rdar://problem/5333496> |
- bool frameNavigationDuringLoad = false; |
- if (m_navigationDuringLoad) { |
- HTMLFrameOwnerElement* owner = m_frame->ownerElement(); |
- frameNavigationDuringLoad = owner && !owner->createdByParser(); |
- m_navigationDuringLoad = false; |
- } |
- |
- if (!frameNavigationDuringLoad && !documentLoader()->isClientRedirect()) { |
- if (!historyURL.isEmpty()) { |
- addBackForwardItemClippedAtTarget(true); |
- if (!needPrivacy) |
- m_client->updateGlobalHistory(historyURL); |
- } |
- } else if (documentLoader()->unreachableURL().isEmpty() && m_currentHistoryItem) { |
- m_currentHistoryItem->setURL(documentLoader()->url()); |
- m_currentHistoryItem->setFormInfoFromRequest(documentLoader()->request()); |
- } |
- |
- if (!historyURL.isEmpty() && !needPrivacy) { |
- if (Page* page = m_frame->page()) |
- page->group().addVisitedLink(historyURL); |
- } |
-} |
- |
-void FrameLoader::updateHistoryForClientRedirect() |
-{ |
-#if !LOG_DISABLED |
- if (documentLoader()) |
- LOG(History, "WebCoreHistory: Updating History for client redirect in frame %s", documentLoader()->title().utf8().data()); |
-#endif |
- |
- // Clear out form data so we don't try to restore it into the incoming page. Must happen after |
- // webcore has closed the URL and saved away the form state. |
- if (m_currentHistoryItem) { |
- m_currentHistoryItem->clearDocumentState(); |
- m_currentHistoryItem->clearScrollPoint(); |
- } |
- |
- Settings* settings = m_frame->settings(); |
- bool needPrivacy = !settings || settings->privateBrowsingEnabled(); |
- const KURL& historyURL = documentLoader()->urlForHistory(); |
- |
- if (!historyURL.isEmpty() && !needPrivacy) { |
- if (Page* page = m_frame->page()) |
- page->group().addVisitedLink(historyURL); |
- } |
-} |
- |
-void FrameLoader::updateHistoryForBackForwardNavigation() |
-{ |
-#if !LOG_DISABLED |
- if (documentLoader()) |
- LOG(History, "WebCoreHistory: Updating History for back/forward navigation in frame %s", documentLoader()->title().utf8().data()); |
-#endif |
- |
- // Must grab the current scroll position before disturbing it |
- saveScrollPositionAndViewStateToItem(m_previousHistoryItem.get()); |
-} |
- |
-void FrameLoader::updateHistoryForReload() |
-{ |
-#if !LOG_DISABLED |
- if (documentLoader()) |
- LOG(History, "WebCoreHistory: Updating History for reload in frame %s", documentLoader()->title().utf8().data()); |
-#endif |
- |
- if (m_currentHistoryItem) { |
- pageCache()->remove(m_currentHistoryItem.get()); |
- |
- if (loadType() == FrameLoadTypeReload) |
- saveScrollPositionAndViewStateToItem(m_currentHistoryItem.get()); |
- |
- // Sometimes loading a page again leads to a different result because of cookies. Bugzilla 4072 |
- if (documentLoader()->unreachableURL().isEmpty()) |
- m_currentHistoryItem->setURL(documentLoader()->requestURL()); |
- } |
-} |
- |
-void FrameLoader::updateHistoryForRedirectWithLockedHistory() |
-{ |
-#if !LOG_DISABLED |
- if (documentLoader()) |
- LOG(History, "WebCoreHistory: Updating History for internal load in frame %s", documentLoader()->title().utf8().data()); |
-#endif |
- |
- Settings* settings = m_frame->settings(); |
- bool needPrivacy = !settings || settings->privateBrowsingEnabled(); |
- const KURL& historyURL = documentLoader()->urlForHistory(); |
- |
- if (documentLoader()->isClientRedirect()) { |
- if (!m_currentHistoryItem && !m_frame->tree()->parent()) { |
- addBackForwardItemClippedAtTarget(true); |
- if (!needPrivacy && !historyURL.isEmpty()) |
- m_client->updateGlobalHistory(historyURL); |
- } |
- if (m_currentHistoryItem) { |
- m_currentHistoryItem->setURL(documentLoader()->url()); |
- m_currentHistoryItem->setFormInfoFromRequest(documentLoader()->request()); |
- } |
- } else { |
- Frame* parentFrame = m_frame->tree()->parent(); |
- if (parentFrame && parentFrame->loader()->m_currentHistoryItem) |
- parentFrame->loader()->m_currentHistoryItem->addChildItem(createHistoryItem(true)); |
- } |
- |
- if (!historyURL.isEmpty() && !needPrivacy) { |
- if (Page* page = m_frame->page()) |
- page->group().addVisitedLink(historyURL); |
- } |
-} |
- |
-void FrameLoader::updateHistoryForCommit() |
-{ |
-#if !LOG_DISABLED |
- if (documentLoader()) |
- LOG(History, "WebCoreHistory: Updating History for commit in frame %s", documentLoader()->title().utf8().data()); |
-#endif |
- FrameLoadType type = loadType(); |
- if (isBackForwardLoadType(type) || |
- (type == FrameLoadTypeReload && !provisionalDocumentLoader()->unreachableURL().isEmpty())) { |
- // Once committed, we want to use current item for saving DocState, and |
- // the provisional item for restoring state. |
- // Note previousItem must be set before we close the URL, which will |
- // happen when the data source is made non-provisional below |
- m_previousHistoryItem = m_currentHistoryItem; |
- ASSERT(m_provisionalHistoryItem); |
- m_currentHistoryItem = m_provisionalHistoryItem; |
- m_provisionalHistoryItem = 0; |
- } |
-} |
- |
-void FrameLoader::updateHistoryForAnchorScroll() |
-{ |
- if (m_URL.isEmpty()) |
- return; |
- |
- Settings* settings = m_frame->settings(); |
- if (!settings || settings->privateBrowsingEnabled()) |
- return; |
- |
- Page* page = m_frame->page(); |
- if (!page) |
- return; |
- |
- page->group().addVisitedLink(m_URL); |
-} |
- |
-// Walk the frame tree, telling all frames to save their form state into their current |
-// history item. |
-void FrameLoader::saveDocumentAndScrollState() |
-{ |
- for (Frame* frame = m_frame; frame; frame = frame->tree()->traverseNext(m_frame)) { |
- frame->loader()->saveDocumentState(); |
- frame->loader()->saveScrollPositionAndViewStateToItem(frame->loader()->currentHistoryItem()); |
- } |
-} |
- |
-// FIXME: These 6 setter/getters are here for a dwindling number of users in WebKit, WebFrame |
-// being the primary one. After they're no longer needed there, they can be removed! |
-HistoryItem* FrameLoader::currentHistoryItem() |
-{ |
- return m_currentHistoryItem.get(); |
-} |
- |
-HistoryItem* FrameLoader::previousHistoryItem() |
-{ |
- return m_previousHistoryItem.get(); |
-} |
- |
-HistoryItem* FrameLoader::provisionalHistoryItem() |
-{ |
- return m_provisionalHistoryItem.get(); |
-} |
- |
-void FrameLoader::setCurrentHistoryItem(PassRefPtr<HistoryItem> item) |
-{ |
- m_currentHistoryItem = item; |
-} |
- |
-void FrameLoader::setPreviousHistoryItem(PassRefPtr<HistoryItem> item) |
-{ |
- m_previousHistoryItem = item; |
-} |
- |
-void FrameLoader::setProvisionalHistoryItem(PassRefPtr<HistoryItem> item) |
-{ |
- m_provisionalHistoryItem = item; |
-} |
- |
-void FrameLoader::setMainDocumentError(DocumentLoader* loader, const ResourceError& error) |
-{ |
- m_client->setMainDocumentError(loader, error); |
-} |
- |
-void FrameLoader::mainReceivedCompleteError(DocumentLoader* loader, const ResourceError& error) |
-{ |
- loader->setPrimaryLoadComplete(true); |
- m_client->dispatchDidLoadMainResource(activeDocumentLoader()); |
- checkCompleted(); |
- if (m_frame->page()) |
- checkLoadComplete(); |
-} |
- |
-void FrameLoader::mainReceivedError(const ResourceError& error, bool isComplete) |
-{ |
- activeDocumentLoader()->mainReceivedError(error, isComplete); |
-} |
- |
-ResourceError FrameLoader::cancelledError(const ResourceRequest& request) const |
-{ |
- ResourceError error = m_client->cancelledError(request); |
- error.setIsCancellation(true); |
- return error; |
-} |
- |
-ResourceError FrameLoader::blockedError(const ResourceRequest& request) const |
-{ |
- return m_client->blockedError(request); |
-} |
- |
-ResourceError FrameLoader::cannotShowURLError(const ResourceRequest& request) const |
-{ |
- return m_client->cannotShowURLError(request); |
-} |
- |
-ResourceError FrameLoader::fileDoesNotExistError(const ResourceResponse& response) const |
-{ |
- return m_client->fileDoesNotExistError(response); |
-} |
- |
-void FrameLoader::didFinishLoad(ResourceLoader* loader) |
-{ |
- if (Page* page = m_frame->page()) |
- page->progress()->completeProgress(loader->identifier()); |
- dispatchDidFinishLoading(loader->documentLoader(), loader->identifier()); |
-} |
- |
-void FrameLoader::didReceiveAuthenticationChallenge(ResourceLoader* loader, const AuthenticationChallenge& currentWebChallenge) |
-{ |
- m_client->dispatchDidReceiveAuthenticationChallenge(loader->documentLoader(), loader->identifier(), currentWebChallenge); |
-} |
- |
-void FrameLoader::didCancelAuthenticationChallenge(ResourceLoader* loader, const AuthenticationChallenge& currentWebChallenge) |
-{ |
- m_client->dispatchDidCancelAuthenticationChallenge(loader->documentLoader(), loader->identifier(), currentWebChallenge); |
-} |
- |
-PolicyCheck::PolicyCheck() |
- : m_navigationFunction(0) |
- , m_newWindowFunction(0) |
- , m_contentFunction(0) |
-{ |
-} |
- |
-void PolicyCheck::clear() |
-{ |
- clearRequest(); |
- m_navigationFunction = 0; |
- m_newWindowFunction = 0; |
- m_contentFunction = 0; |
-} |
- |
-void PolicyCheck::set(const ResourceRequest& request, PassRefPtr<FormState> formState, |
- NavigationPolicyDecisionFunction function, void* argument) |
-{ |
- m_request = request; |
- m_formState = formState; |
- m_frameName = String(); |
- |
- m_navigationFunction = function; |
- m_newWindowFunction = 0; |
- m_contentFunction = 0; |
- m_argument = argument; |
-} |
- |
-void PolicyCheck::set(const ResourceRequest& request, PassRefPtr<FormState> formState, |
- const String& frameName, NewWindowPolicyDecisionFunction function, void* argument) |
-{ |
- m_request = request; |
- m_formState = formState; |
- m_frameName = frameName; |
- |
- m_navigationFunction = 0; |
- m_newWindowFunction = function; |
- m_contentFunction = 0; |
- m_argument = argument; |
-} |
- |
-void PolicyCheck::set(ContentPolicyDecisionFunction function, void* argument) |
-{ |
- m_request = ResourceRequest(); |
- m_formState = 0; |
- m_frameName = String(); |
- |
- m_navigationFunction = 0; |
- m_newWindowFunction = 0; |
- m_contentFunction = function; |
- m_argument = argument; |
-} |
- |
-void PolicyCheck::call(bool shouldContinue) |
-{ |
- if (m_navigationFunction) |
- m_navigationFunction(m_argument, m_request, m_formState.get(), shouldContinue); |
- if (m_newWindowFunction) |
- m_newWindowFunction(m_argument, m_request, m_formState.get(), m_frameName, shouldContinue); |
- ASSERT(!m_contentFunction); |
-} |
- |
-void PolicyCheck::call(PolicyAction action) |
-{ |
- ASSERT(!m_navigationFunction); |
- ASSERT(!m_newWindowFunction); |
- ASSERT(m_contentFunction); |
- m_contentFunction(m_argument, action); |
-} |
- |
-void PolicyCheck::clearRequest() |
-{ |
- m_request = ResourceRequest(); |
- m_formState = 0; |
- m_frameName = String(); |
-} |
- |
-void PolicyCheck::cancel() |
-{ |
- clearRequest(); |
- if (m_navigationFunction) |
- m_navigationFunction(m_argument, m_request, m_formState.get(), false); |
- if (m_newWindowFunction) |
- m_newWindowFunction(m_argument, m_request, m_formState.get(), m_frameName, false); |
- if (m_contentFunction) |
- m_contentFunction(m_argument, PolicyIgnore); |
-} |
- |
-void FrameLoader::setTitle(const String& title) |
-{ |
- documentLoader()->setTitle(title); |
-} |
- |
-KURL FrameLoader::originalRequestURL() const |
-{ |
- return activeDocumentLoader()->originalRequest().url(); |
-} |
- |
-String FrameLoader::referrer() const |
-{ |
- return documentLoader()->request().httpReferrer(); |
-} |
- |
-void FrameLoader::dispatchWindowObjectAvailable() |
-{ |
- // TODO(tc): We should also return early if we have no window shell. |
- // But we can't check that until we refactor ScriptController. |
- if (!m_frame->script()->isEnabled()) |
- return; |
- |
- m_client->windowObjectCleared(); |
- |
- if (Page* page = m_frame->page()) { |
- if (InspectorController* inspector = page->inspectorController()) |
- inspector->inspectedWindowScriptObjectCleared(m_frame); |
- if (InspectorController* inspector = page->parentInspectorController()) |
- inspector->windowScriptObjectAvailable(); |
- } |
-} |
- |
-Widget* FrameLoader::createJavaAppletWidget(const IntSize& size, Element* element, const HashMap<String, String>& args) |
-{ |
- String baseURLString; |
- Vector<String> paramNames; |
- Vector<String> paramValues; |
- HashMap<String, String>::const_iterator end = args.end(); |
- for (HashMap<String, String>::const_iterator it = args.begin(); it != end; ++it) { |
- if (equalIgnoringCase(it->first, "baseurl")) |
- baseURLString = it->second; |
- paramNames.append(it->first); |
- paramValues.append(it->second); |
- } |
- |
- if (baseURLString.isEmpty()) |
- baseURLString = m_frame->document()->baseURL().string(); |
- KURL baseURL = completeURL(baseURLString); |
- |
- Widget* widget = m_client->createJavaAppletWidget(size, element, baseURL, paramNames, paramValues); |
- if (widget) |
- m_containsPlugIns = true; |
- |
- return widget; |
-} |
- |
-void FrameLoader::didChangeTitle(DocumentLoader* loader) |
-{ |
- m_client->didChangeTitle(loader); |
- |
- // The title doesn't get communicated to the WebView until we are committed. |
- if (loader->isCommitted()) { |
- // Must update the entries in the back-forward list too. |
- if (m_currentHistoryItem) |
- m_currentHistoryItem->setTitle(loader->title()); |
- // This must go through the WebFrame because it has the right notion of the current b/f item. |
- m_client->setTitle(loader->title(), loader->urlForHistory()); |
- m_client->setMainFrameDocumentReady(true); // update observers with new DOMDocument |
- m_client->dispatchDidReceiveTitle(loader->title()); |
- } |
-} |
- |
-void FrameLoader::continueLoadWithData(SharedBuffer* buffer, const String& mimeType, const String& textEncoding, const KURL& url) |
-{ |
- m_responseMIMEType = mimeType; |
- didOpenURL(url); |
- |
- String encoding; |
- if (m_frame) |
- encoding = documentLoader()->overrideEncoding(); |
- bool userChosen = !encoding.isNull(); |
- if (encoding.isNull()) |
- encoding = textEncoding; |
- setEncoding(encoding, userChosen); |
- |
- ASSERT(m_frame->document()); |
- |
- addData(buffer->data(), buffer->size()); |
-} |
- |
-void FrameLoader::registerURLSchemeAsLocal(const String& scheme) |
-{ |
- localSchemes().add(scheme); |
-} |
- |
-bool FrameLoader::shouldTreatURLAsLocal(const String& url) |
-{ |
- // This avoids an allocation of another String and the HashSet contains() |
- // call for the file: and http: schemes. |
- if (url.length() >= 5) { |
- const UChar* s = url.characters(); |
- if (s[0] == 'h' && s[1] == 't' && s[2] == 't' && s[3] == 'p' && s[4] == ':') |
- return false; |
- if (s[0] == 'f' && s[1] == 'i' && s[2] == 'l' && s[3] == 'e' && s[4] == ':') |
- return true; |
- } |
- |
- int loc = url.find(':'); |
- if (loc == -1) |
- return false; |
- |
- String scheme = url.left(loc); |
- return localSchemes().contains(scheme); |
-} |
- |
-bool FrameLoader::shouldTreatSchemeAsLocal(const String& scheme) |
-{ |
- // This avoids an allocation of another String and the HashSet contains() |
- // call for the file: and http: schemes. |
- if (scheme.length() == 4) { |
- const UChar* s = scheme.characters(); |
- if (s[0] == 'h' && s[1] == 't' && s[2] == 't' && s[3] == 'p') |
- return false; |
- if (s[0] == 'f' && s[1] == 'i' && s[2] == 'l' && s[3] == 'e') |
- return true; |
- } |
- |
- if (scheme.isEmpty()) |
- return false; |
- |
- return localSchemes().contains(scheme); |
-} |
- |
-void FrameLoader::dispatchDidCommitLoad() |
-{ |
- if (m_creatingInitialEmptyDocument) |
- return; |
- |
-#ifndef NDEBUG |
- m_didDispatchDidCommitLoad = true; |
-#endif |
- |
- m_client->dispatchDidCommitLoad(); |
- |
- if (Page* page = m_frame->page()) |
- page->inspectorController()->didCommitLoad(m_documentLoader.get()); |
-} |
- |
-void FrameLoader::dispatchAssignIdentifierToInitialRequest(unsigned long identifier, DocumentLoader* loader, const ResourceRequest& request) |
-{ |
- m_client->assignIdentifierToInitialRequest(identifier, loader, request); |
- |
- if (Page* page = m_frame->page()) |
- page->inspectorController()->identifierForInitialRequest(identifier, loader, request); |
-} |
- |
-void FrameLoader::dispatchWillSendRequest(DocumentLoader* loader, unsigned long identifier, ResourceRequest& request, const ResourceResponse& redirectResponse) |
-{ |
- m_client->dispatchWillSendRequest(loader, identifier, request, redirectResponse); |
- |
- if (Page* page = m_frame->page()) |
- page->inspectorController()->willSendRequest(loader, identifier, request, redirectResponse); |
-} |
- |
-void FrameLoader::dispatchDidReceiveResponse(DocumentLoader* loader, unsigned long identifier, const ResourceResponse& r) |
-{ |
- m_client->dispatchDidReceiveResponse(loader, identifier, r); |
- |
- if (Page* page = m_frame->page()) |
- page->inspectorController()->didReceiveResponse(loader, identifier, r); |
-} |
- |
-void FrameLoader::dispatchDidReceiveContentLength(DocumentLoader* loader, unsigned long identifier, int length) |
-{ |
- m_client->dispatchDidReceiveContentLength(loader, identifier, length); |
- |
- if (Page* page = m_frame->page()) |
- page->inspectorController()->didReceiveContentLength(loader, identifier, length); |
-} |
- |
-void FrameLoader::dispatchDidFinishLoading(DocumentLoader* loader, unsigned long identifier) |
-{ |
- m_client->dispatchDidFinishLoading(loader, identifier); |
- |
- if (Page* page = m_frame->page()) |
- page->inspectorController()->didFinishLoading(loader, identifier); |
-} |
- |
-#if USE(LOW_BANDWIDTH_DISPLAY) |
- |
-bool FrameLoader::addLowBandwidthDisplayRequest(CachedResource* cache) |
-{ |
- if (m_frame->document()->inLowBandwidthDisplay() == false) |
- return false; |
- |
- // if cache is loaded, don't add to the list, where notifyFinished() is expected. |
- if (cache->isLoaded()) |
- return false; |
- |
- switch (cache->type()) { |
- case CachedResource::CSSStyleSheet: |
- case CachedResource::Script: |
- m_needToSwitchOutLowBandwidthDisplay = true; |
- m_externalRequestsInLowBandwidthDisplay.add(cache); |
- cache->addClient(this); |
- return true; |
- case CachedResource::ImageResource: |
- case CachedResource::FontResource: |
-#if ENABLE(XSLT) |
- case CachedResource::XSLStyleSheet: |
-#endif |
-#if ENABLE(XBL) |
- case CachedResource::XBLStyleSheet: |
-#endif |
- return false; |
- } |
- |
- ASSERT_NOT_REACHED(); |
- return false; |
-} |
- |
-void FrameLoader::removeAllLowBandwidthDisplayRequests() |
-{ |
- HashSet<CachedResource*>::iterator end = m_externalRequestsInLowBandwidthDisplay.end(); |
- for (HashSet<CachedResource*>::iterator it = m_externalRequestsInLowBandwidthDisplay.begin(); it != end; ++it) |
- (*it)->removeClient(this); |
- m_externalRequestsInLowBandwidthDisplay.clear(); |
-} |
- |
-void FrameLoader::notifyFinished(CachedResource* script) |
-{ |
- HashSet<CachedResource*>::iterator it = m_externalRequestsInLowBandwidthDisplay.find(script); |
- if (it != m_externalRequestsInLowBandwidthDisplay.end()) { |
- (*it)->removeClient(this); |
- m_externalRequestsInLowBandwidthDisplay.remove(it); |
- switchOutLowBandwidthDisplayIfReady(); |
- } |
-} |
- |
-void FrameLoader::switchOutLowBandwidthDisplayIfReady() |
-{ |
- RefPtr<Document> oldDoc = m_frame->document(); |
- if (oldDoc->inLowBandwidthDisplay()) { |
- if (!m_needToSwitchOutLowBandwidthDisplay) { |
- // no need to switch, just reset state |
- oldDoc->setLowBandwidthDisplay(false); |
- removeAllLowBandwidthDisplayRequests(); |
- m_pendingSourceInLowBandwidthDisplay = String(); |
- m_finishedParsingDuringLowBandwidthDisplay = false; |
- return; |
- } else if (m_externalRequestsInLowBandwidthDisplay.isEmpty() || |
- m_pendingSourceInLowBandwidthDisplay.length() > cMaxPendingSourceLengthInLowBandwidthDisplay) { |
- // clear the flag first |
- oldDoc->setLowBandwidthDisplay(false); |
- |
- // similar to clear(), should be refactored to share more code |
- oldDoc->cancelParsing(); |
- oldDoc->detach(); |
- if (m_frame->script()->isEnabled()) |
- m_frame->script()->clearWindowShell(); |
- if (m_frame->view()) |
- m_frame->view()->clear(); |
- |
- // similar to begin(), should be refactored to share more code |
- RefPtr<Document> newDoc = DOMImplementation::createDocument(m_responseMIMEType, m_frame, m_frame->inViewSourceMode()); |
- m_frame->setDocument(newDoc); |
- newDoc->setURL(m_URL); |
- if (m_decoder) |
- newDoc->setDecoder(m_decoder.get()); |
- restoreDocumentState(); |
- dispatchWindowObjectAvailable(); |
- newDoc->implicitOpen(); |
- |
- // swap DocLoader ownership |
- DocLoader* docLoader = newDoc->docLoader(); |
- newDoc->setDocLoader(oldDoc->docLoader()); |
- newDoc->docLoader()->replaceDocument(newDoc.get()); |
- docLoader->replaceDocument(oldDoc.get()); |
- oldDoc->setDocLoader(docLoader); |
- |
- // drop the old doc |
- oldDoc = 0; |
- |
- // write decoded data to the new doc, similar to write() |
- if (m_pendingSourceInLowBandwidthDisplay.length()) { |
- // set cachePolicy to Cache to use the loaded resource |
- newDoc->docLoader()->setCachePolicy(CachePolicyCache); |
- if (m_decoder->encoding().usesVisualOrdering()) |
- newDoc->setVisuallyOrdered(); |
- newDoc->recalcStyle(Node::Force); |
- newDoc->tokenizer()->write(m_pendingSourceInLowBandwidthDisplay, true); |
- |
- if (m_finishedParsingDuringLowBandwidthDisplay) |
- newDoc->finishParsing(); |
- } |
- |
- // update rendering |
- newDoc->updateRendering(); |
- |
- // reset states |
- removeAllLowBandwidthDisplayRequests(); |
- m_pendingSourceInLowBandwidthDisplay = String(); |
- m_finishedParsingDuringLowBandwidthDisplay = false; |
- m_needToSwitchOutLowBandwidthDisplay = false; |
- } |
- } |
-} |
- |
-#endif |
- |
-void FrameLoader::unloadListenerChanged() { |
- m_client->unloadListenerChanged(); |
-} |
- |
-} // namespace WebCore |