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Side by Side Diff: webkit/pending/EmptyClients.h

Issue 6500: Cleaning up the unfork (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 12 years, 2 months ago
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1 /*
2 * Copyright (C) 2006 Eric Seidel (eric@webkit.org)
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #ifndef EmptyClients_h
27 #define EmptyClients_h
28
29 #include "ChromeClient.h"
30 #include "ContextMenuClient.h"
31 #include "DragClient.h"
32 #include "DocumentLoader.h"
33 #include "EditCommand.h"
34 #include "EditorClient.h"
35 #include "FocusDirection.h"
36 #include "FloatRect.h"
37 #include "FrameLoaderClient.h"
38 #include "InspectorClient.h"
39 #include "ResourceError.h"
40 #include "SharedBuffer.h"
41
42 /*
43 This file holds empty Client stubs for use by WebCore.
44 Viewless element needs to create a dummy Page->Frame->FrameView tree for use in parsing or executing JavaScript.
45 This tree depends heavily on Clients (usually provided by WebKit classes).
46
47 This file was first created for SVGImage as it had no way to access the current Page (nor should it,
48 since Images are not tied to a page).
49 See http://bugs.webkit.org/show_bug.cgi?id=5971 for the original discussion abo ut this file.
50
51 Ideally, whenever you change a Client class, you should add a stub here.
52 Brittle, yes. Unfortunate, yes. Hopefully temporary.
53 */
54
55 namespace WebCore {
56
57 class EmptyChromeClient : public ChromeClient {
58 public:
59 virtual ~EmptyChromeClient() { }
60 virtual void chromeDestroyed() { }
61
62 virtual void setWindowRect(const FloatRect&) { }
63 virtual FloatRect windowRect() { return FloatRect(); }
64
65 virtual FloatRect pageRect() { return FloatRect(); }
66
67 virtual float scaleFactor() { return 1.f; }
68
69 virtual void focus() { }
70 virtual void unfocus() { }
71
72 virtual bool canTakeFocus(FocusDirection) { return false; }
73 virtual void takeFocus(FocusDirection) { }
74
75 virtual Page* createWindow(Frame*, const FrameLoadRequest&, const WindowFeat ures&) { return 0; }
76 virtual void show() { }
77
78 virtual bool canRunModal() { return false; }
79 virtual void runModal() { }
80
81 virtual void setToolbarsVisible(bool) { }
82 virtual bool toolbarsVisible() { return false; }
83
84 virtual void setStatusbarVisible(bool) { }
85 virtual bool statusbarVisible() { return false; }
86
87 virtual void setScrollbarsVisible(bool) { }
88 virtual bool scrollbarsVisible() { return false; }
89
90 virtual void setMenubarVisible(bool) { }
91 virtual bool menubarVisible() { return false; }
92
93 virtual void setResizable(bool) { }
94
95 virtual void addMessageToConsole(const String& message, unsigned int lineNum ber, const String& sourceID) { }
96
97 virtual bool canRunBeforeUnloadConfirmPanel() { return false; }
98 virtual bool runBeforeUnloadConfirmPanel(const String& message, Frame* frame ) { return true; }
99
100 virtual void closeWindowSoon() { }
101
102 virtual void runJavaScriptAlert(Frame*, const String&) { }
103 virtual bool runJavaScriptConfirm(Frame*, const String&) { return false; }
104 virtual bool runJavaScriptPrompt(Frame*, const String& message, const String & defaultValue, String& result) { return false; }
105 virtual bool shouldInterruptJavaScript() { return false; }
106
107 virtual void setStatusbarText(const String&) { }
108
109 virtual bool tabsToLinks() const { return false; }
110
111 virtual IntRect windowResizerRect() const { return IntRect(); }
112 virtual void addToDirtyRegion(const IntRect&) { }
113 virtual void scrollBackingStore(int dx, int dy, const IntRect& scrollViewRec t, const IntRect& clipRect) { }
114 virtual void updateBackingStore() { }
115
116 virtual void mouseDidMoveOverElement(const HitTestResult&, unsigned modifier Flags) { }
117
118 virtual void setToolTip(const String&) { }
119
120 virtual void print(Frame*) { }
121
122 virtual void exceededDatabaseQuota(Frame*, const String&) { }
123 };
124
125 class EmptyFrameLoaderClient : public FrameLoaderClient {
126 public:
127 virtual ~EmptyFrameLoaderClient() { }
128 virtual void frameLoaderDestroyed() { }
129
130 virtual bool hasWebView() const { return true; } // mainly for assertions
131 virtual bool hasFrameView() const { return true; } // ditto
132
133 virtual void makeRepresentation(DocumentLoader*) { }
134 virtual void forceLayout() { }
135 virtual void forceLayoutForNonHTML() { }
136
137 virtual void updateHistoryForCommit() { }
138
139 virtual void updateHistoryForBackForwardNavigation() { }
140 virtual void updateHistoryForReload() { }
141 virtual void updateHistoryForStandardLoad() { }
142 virtual void updateHistoryForInternalLoad() { }
143
144 virtual void updateHistoryAfterClientRedirect() { }
145
146 virtual void setCopiesOnScroll() { }
147
148 virtual void detachedFromParent2() { }
149 virtual void detachedFromParent3() { }
150 virtual void detachedFromParent4() { }
151
152 virtual void download(ResourceHandle*, const ResourceRequest&, const Resourc eRequest&, const ResourceResponse&) { }
153
154 virtual void assignIdentifierToInitialRequest(unsigned long identifier, Docu mentLoader*, const ResourceRequest&) { }
155 virtual void dispatchWillSendRequest(DocumentLoader*, unsigned long identifi er, ResourceRequest&, const ResourceResponse& redirectResponse) { }
156 virtual void dispatchDidReceiveAuthenticationChallenge(DocumentLoader*, unsi gned long identifier, const AuthenticationChallenge&) { }
157 virtual void dispatchDidCancelAuthenticationChallenge(DocumentLoader*, unsig ned long identifier, const AuthenticationChallenge&) { }
158 virtual void dispatchDidReceiveResponse(DocumentLoader*, unsigned long ident ifier, const ResourceResponse&) { }
159 virtual void dispatchDidReceiveContentLength(DocumentLoader*, unsigned long identifier, int lengthReceived) { }
160 virtual void dispatchDidFinishLoading(DocumentLoader*, unsigned long identif ier) { }
161 virtual void dispatchDidFailLoading(DocumentLoader*, unsigned long identifie r, const ResourceError&) { }
162 virtual bool dispatchDidLoadResourceFromMemoryCache(DocumentLoader*, const R esourceRequest&, const ResourceResponse&, int length) { return false; }
163
164 virtual void dispatchDidHandleOnloadEvents() { }
165 virtual void dispatchDidReceiveServerRedirectForProvisionalLoad() { }
166 virtual void dispatchDidCancelClientRedirect() { }
167 virtual void dispatchWillPerformClientRedirect(const KURL&, double interval, double fireDate) { }
168 virtual void dispatchDidChangeLocationWithinPage() { }
169 virtual void dispatchWillClose() { }
170 virtual void dispatchDidReceiveIcon() { }
171 virtual void dispatchDidStartProvisionalLoad() { }
172 virtual void dispatchDidReceiveTitle(const String& title) { }
173 virtual void dispatchDidCommitLoad() { }
174 virtual void dispatchDidFailProvisionalLoad(const ResourceError&) { }
175 virtual void dispatchDidFailLoad(const ResourceError&) { }
176 virtual void dispatchDidFinishDocumentLoad() { }
177 virtual void dispatchDidFinishLoad() { }
178 virtual void dispatchDidFirstLayout() { }
179
180 virtual Frame* dispatchCreatePage() { return 0; }
181 virtual void dispatchShow() { }
182
183 virtual void dispatchDecidePolicyForMIMEType(FramePolicyFunction, const Stri ng& MIMEType, const ResourceRequest&) { }
184 virtual void dispatchDecidePolicyForNewWindowAction(FramePolicyFunction, con st NavigationAction&, const ResourceRequest&, PassRefPtr<FormState>, const Strin g& frameName) { }
185 virtual void dispatchDecidePolicyForNavigationAction(FramePolicyFunction, co nst NavigationAction&, const ResourceRequest&, PassRefPtr<FormState>) { }
186 virtual void cancelPolicyCheck() { }
187
188 virtual void dispatchUnableToImplementPolicy(const ResourceError&) { }
189
190 virtual void dispatchWillSubmitForm(FramePolicyFunction, PassRefPtr<FormStat e>) { }
191
192 virtual void dispatchDidLoadMainResource(DocumentLoader*) { }
193 virtual void revertToProvisionalState(DocumentLoader*) { }
194 virtual void setMainDocumentError(DocumentLoader*, const ResourceError&) { }
195
196 virtual void willChangeEstimatedProgress() { }
197 virtual void didChangeEstimatedProgress() { }
198 virtual void postProgressStartedNotification() { }
199 virtual void postProgressEstimateChangedNotification() { }
200 virtual void postProgressFinishedNotification() { }
201
202 virtual void setMainFrameDocumentReady(bool) { }
203
204 virtual void startDownload(const ResourceRequest&) { }
205
206 virtual void willChangeTitle(DocumentLoader*) { }
207 virtual void didChangeTitle(DocumentLoader*) { }
208
209 virtual void committedLoad(DocumentLoader*, const char*, int) { }
210 virtual void finishedLoading(DocumentLoader*) { }
211
212 virtual ResourceError cancelledError(const ResourceRequest&) { return Resour ceError(); }
213 virtual ResourceError blockedError(const ResourceRequest&) { return Resource Error(); }
214 virtual ResourceError cannotShowURLError(const ResourceRequest&) { return Re sourceError(); }
215 virtual ResourceError interruptForPolicyChangeError(const ResourceRequest&) { return ResourceError(); }
216
217 virtual ResourceError cannotShowMIMETypeError(const ResourceResponse&) { ret urn ResourceError(); }
218 virtual ResourceError fileDoesNotExistError(const ResourceResponse&) { retur n ResourceError(); }
219 virtual ResourceError pluginWillHandleLoadError(const ResourceResponse&) { r eturn ResourceError(); }
220
221 virtual bool shouldFallBack(const ResourceError&) { return false; }
222
223 virtual bool canHandleRequest(const ResourceRequest&) const { return false; }
224 virtual bool canShowMIMEType(const String& MIMEType) const { return false; }
225 virtual bool representationExistsForURLScheme(const String& URLScheme) const { return false; }
226 virtual String generatedMIMETypeForURLScheme(const String& URLScheme) const { return ""; }
227
228 virtual void frameLoadCompleted() { }
229 virtual void restoreViewState() { }
230 virtual void provisionalLoadStarted() { }
231 virtual bool shouldTreatURLAsSameAsCurrent(const KURL&) const { return false ; }
232 virtual void addHistoryItemForFragmentScroll() { }
233 virtual void didFinishLoad() { }
234 virtual void prepareForDataSourceReplacement() { }
235
236 virtual PassRefPtr<DocumentLoader> createDocumentLoader(const ResourceReques t& request, const SubstituteData& substituteData) { return DocumentLoader::creat e(request, substituteData); }
237 virtual void setTitle(const String& title, const KURL&) { }
238
239 virtual String userAgent(const KURL&) { return ""; }
240
241 virtual void savePlatformDataToCachedPage(CachedPage*) { }
242 virtual void transitionToCommittedFromCachedPage(CachedPage*) { }
243 virtual void transitionToCommittedForNewPage() { }
244
245 virtual void updateGlobalHistory(const KURL&) { }
246 virtual bool shouldGoToHistoryItem(HistoryItem*) const { return false; }
247 virtual void saveViewStateToItem(HistoryItem*) { }
248 virtual bool canCachePage() const { return false; }
249
250 virtual PassRefPtr<Frame> createFrame(const KURL& url, const String& name, H TMLFrameOwnerElement* ownerElement,
251 const String& referrer, bool allowsScrolling, int marginWidth, int marginHeight) { return 0; }
252 virtual Widget* createPlugin(const IntSize&,Element*, const KURL&, const Vec tor<String>&, const Vector<String>&, const String&, bool) { return 0; }
253 virtual Widget* createJavaAppletWidget(const IntSize&, Element*, const KURL& , const Vector<String>&, const Vector<String>&) { return 0; }
254
255 virtual ObjectContentType objectContentType(const KURL& url, const String& m imeType) { return ObjectContentType(); }
256 virtual String overrideMediaType() const { return String(); }
257
258 virtual void redirectDataToPlugin(Widget*) {}
259 virtual void windowObjectCleared() {}
260 virtual void didPerformFirstNavigation() const {}
261
262 virtual void registerForIconNotification(bool listen) {}
263
264 virtual void unloadListenerChanged() {}
265
266 #if PLATFORM(MAC)
267 virtual NSCachedURLResponse* willCacheResponse(DocumentLoader*, unsigned lon g identifier, NSCachedURLResponse* response) const { return response; }
268 #endif
269
270 };
271
272 class EmptyEditorClient : public EditorClient {
273 public:
274 virtual ~EmptyEditorClient() { }
275 virtual void pageDestroyed() { }
276
277 virtual bool shouldDeleteRange(Range*) { return false; }
278 virtual bool shouldShowDeleteInterface(HTMLElement*) { return false; }
279 virtual bool smartInsertDeleteEnabled() { return false; }
280 virtual bool isContinuousSpellCheckingEnabled() { return false; }
281 virtual void toggleContinuousSpellChecking() { }
282 virtual bool isGrammarCheckingEnabled() { return false; }
283 virtual void toggleGrammarChecking() { }
284 virtual int spellCheckerDocumentTag() { return -1; }
285
286 virtual bool selectWordBeforeMenuEvent() { return false; }
287 virtual bool isEditable() { return false; }
288
289 virtual bool shouldBeginEditing(Range*) { return false; }
290 virtual bool shouldEndEditing(Range*) { return false; }
291 virtual bool shouldInsertNode(Node*, Range*, EditorInsertAction) { return fa lse; }
292 // virtual bool shouldInsertNode(Node*, Range* replacingRange, WebViewInser tAction) { return false; }
293 virtual bool shouldInsertText(const String&, Range*, EditorInsertAction) { r eturn false; }
294 virtual bool shouldChangeSelectedRange(Range* fromRange, Range* toRange, EAf finity, bool stillSelecting) { return false; }
295
296 virtual bool shouldApplyStyle(CSSStyleDeclaration*, Range*) { return false; }
297 virtual bool shouldMoveRangeAfterDelete(Range*, Range*) { return false; }
298 // virtual bool shouldChangeTypingStyle(CSSStyleDeclaration* fromStyle, CSS StyleDeclaration* toStyle) { return false; }
299 // virtual bool doCommandBySelector(SEL selector) { return false; }
300 //
301 virtual void didBeginEditing() { }
302 virtual void respondToChangedContents() { }
303 virtual void respondToChangedSelection() { }
304 virtual void didEndEditing() { }
305 virtual void didWriteSelectionToPasteboard() { }
306 virtual void didSetSelectionTypesForPasteboard() { }
307 // virtual void webViewDidChangeTypingStyle:(NSNotification *)notification { }
308 // virtual void webViewDidChangeSelection:(NSNotification *)notification { }
309 // virtual NSUndoManager* undoManagerForWebView:(WebView *)webView { return 0; }
310
311 virtual void registerCommandForUndo(PassRefPtr<EditCommand>) { }
312 virtual void registerCommandForRedo(PassRefPtr<EditCommand>) { }
313 virtual void clearUndoRedoOperations() { }
314
315 virtual bool canUndo() const { return false; }
316 virtual bool canRedo() const { return false; }
317
318 virtual void undo() { }
319 virtual void redo() { }
320
321 virtual void handleKeyboardEvent(KeyboardEvent*) { }
322 virtual void handleInputMethodKeydown(KeyboardEvent*) { }
323
324 virtual void textFieldDidBeginEditing(Element*) { }
325 virtual void textFieldDidEndEditing(Element*) { }
326 virtual void textDidChangeInTextField(Element*) { }
327 virtual bool doTextFieldCommandFromEvent(Element*, KeyboardEvent*) { return false; }
328 virtual void textWillBeDeletedInTextField(Element*) { }
329 virtual void textDidChangeInTextArea(Element*) { }
330
331 #if PLATFORM(MAC)
332 virtual void markedTextAbandoned(Frame*) { }
333
334 virtual NSString* userVisibleString(NSURL*) { return 0; }
335 #ifdef BUILDING_ON_TIGER
336 virtual NSArray* pasteboardTypesForSelection(Frame*) { return 0; }
337 #endif
338 #endif
339 virtual void ignoreWordInSpellDocument(const String&) { }
340 virtual void learnWord(const String&) { }
341 virtual void checkSpellingOfString(const UChar*, int length, int* misspellin gLocation, int* misspellingLength) { }
342 virtual void checkGrammarOfString(const UChar*, int length, Vector<GrammarDe tail>&, int* badGrammarLocation, int* badGrammarLength) { }
343 virtual void updateSpellingUIWithGrammarString(const String&, const GrammarD etail&) { }
344 virtual void updateSpellingUIWithMisspelledWord(const String&) { }
345 virtual void showSpellingUI(bool show) { }
346 virtual bool spellingUIIsShowing() { return false; }
347 virtual void getGuessesForWord(const String&, Vector<String>& guesses) { }
348 virtual void setInputMethodState(bool enabled) { }
349
350
351 };
352
353 class EmptyContextMenuClient : public ContextMenuClient {
354 public:
355 virtual ~EmptyContextMenuClient() { }
356 virtual void contextMenuDestroyed() { }
357
358 virtual PlatformMenuDescription getCustomMenuFromDefaultItems(ContextMenu*) { return 0; }
359 virtual void contextMenuItemSelected(ContextMenuItem*, const ContextMenu*) { }
360
361 virtual void downloadURL(const KURL& url) { }
362 virtual void copyImageToClipboard(const HitTestResult&) { }
363 virtual void searchWithGoogle(const Frame*) { }
364 virtual void lookUpInDictionary(Frame*) { }
365 virtual void speak(const String&) { }
366 virtual void stopSpeaking() { }
367
368 #if PLATFORM(MAC)
369 virtual void searchWithSpotlight() { }
370 #endif
371 };
372
373 class EmptyDragClient : public DragClient {
374 public:
375 virtual ~EmptyDragClient() {}
376 virtual void willPerformDragDestinationAction(DragDestinationAction, DragDat a*) { }
377 virtual void willPerformDragSourceAction(DragSourceAction, const IntPoint&, Clipboard*) { }
378 virtual DragDestinationAction actionMaskForDrag(DragData*) { return DragDest inationActionNone; }
379 virtual DragSourceAction dragSourceActionMaskForPoint(const IntPoint&) { ret urn DragSourceActionNone; }
380 virtual void startDrag(DragImageRef, const IntPoint&, const IntPoint&, Clipb oard*, Frame*, bool) { }
381 virtual DragImageRef createDragImageForLink(KURL&, const String& label, Fram e*) { return 0; }
382 virtual void dragControllerDestroyed() { }
383 };
384
385 class EmptyInspectorClient : public InspectorClient {
386 public:
387 virtual ~EmptyInspectorClient() {}
388
389 virtual void inspectorDestroyed() {};
390
391 virtual Page* createPage() { return 0; };
392
393 virtual String localizedStringsURL() { return String(); };
394
395 virtual void showWindow() {};
396 virtual void closeWindow() {};
397
398 virtual void attachWindow() {};
399 virtual void detachWindow() {};
400
401 virtual void setAttachedWindowHeight(unsigned) {};
402
403 virtual void highlight(Node*) {};
404 virtual void hideHighlight() {};
405 virtual void inspectedURLChanged(const String& newURL) {};
406 };
407
408 }
409
410 #endif // EmptyClients_h
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