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Issue 49823002: Move navigation and frame tree classes to a new frame_host/ directory. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fixing gyp and adding TODO. Created 7 years, 1 month ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "content/browser/web_contents/interstitial_page_impl.h"
6
7 #include <vector>
8
9 #include "base/bind.h"
10 #include "base/compiler_specific.h"
11 #include "base/message_loop/message_loop.h"
12 #include "base/strings/string_util.h"
13 #include "base/strings/utf_string_conversions.h"
14 #include "base/threading/thread.h"
15 #include "content/browser/dom_storage/dom_storage_context_wrapper.h"
16 #include "content/browser/dom_storage/session_storage_namespace_impl.h"
17 #include "content/browser/loader/resource_dispatcher_host_impl.h"
18 #include "content/browser/renderer_host/render_process_host_impl.h"
19 #include "content/browser/renderer_host/render_view_host_factory.h"
20 #include "content/browser/renderer_host/render_view_host_impl.h"
21 #include "content/browser/site_instance_impl.h"
22 #include "content/browser/web_contents/navigation_controller_impl.h"
23 #include "content/browser/web_contents/navigation_entry_impl.h"
24 #include "content/browser/web_contents/web_contents_impl.h"
25 #include "content/common/view_messages.h"
26 #include "content/port/browser/render_view_host_delegate_view.h"
27 #include "content/port/browser/render_widget_host_view_port.h"
28 #include "content/port/browser/web_contents_view_port.h"
29 #include "content/public/browser/browser_context.h"
30 #include "content/public/browser/browser_thread.h"
31 #include "content/public/browser/content_browser_client.h"
32 #include "content/public/browser/dom_operation_notification_details.h"
33 #include "content/public/browser/interstitial_page_delegate.h"
34 #include "content/public/browser/invalidate_type.h"
35 #include "content/public/browser/notification_service.h"
36 #include "content/public/browser/notification_source.h"
37 #include "content/public/browser/storage_partition.h"
38 #include "content/public/browser/web_contents_delegate.h"
39 #include "content/public/common/bindings_policy.h"
40 #include "content/public/common/page_transition_types.h"
41 #include "net/base/escape.h"
42 #include "net/url_request/url_request_context_getter.h"
43
44 using WebKit::WebDragOperation;
45 using WebKit::WebDragOperationsMask;
46
47 namespace content {
48 namespace {
49
50 void ResourceRequestHelper(ResourceDispatcherHostImpl* rdh,
51 int process_id,
52 int render_view_host_id,
53 ResourceRequestAction action) {
54 switch (action) {
55 case BLOCK:
56 rdh->BlockRequestsForRoute(process_id, render_view_host_id);
57 break;
58 case RESUME:
59 rdh->ResumeBlockedRequestsForRoute(process_id, render_view_host_id);
60 break;
61 case CANCEL:
62 rdh->CancelBlockedRequestsForRoute(process_id, render_view_host_id);
63 break;
64 default:
65 NOTREACHED();
66 }
67 }
68
69 } // namespace
70
71 class InterstitialPageImpl::InterstitialPageRVHDelegateView
72 : public RenderViewHostDelegateView {
73 public:
74 explicit InterstitialPageRVHDelegateView(InterstitialPageImpl* page);
75
76 // RenderViewHostDelegateView implementation:
77 virtual void ShowPopupMenu(const gfx::Rect& bounds,
78 int item_height,
79 double item_font_size,
80 int selected_item,
81 const std::vector<MenuItem>& items,
82 bool right_aligned,
83 bool allow_multiple_selection) OVERRIDE;
84 virtual void StartDragging(const DropData& drop_data,
85 WebDragOperationsMask operations_allowed,
86 const gfx::ImageSkia& image,
87 const gfx::Vector2d& image_offset,
88 const DragEventSourceInfo& event_info) OVERRIDE;
89 virtual void UpdateDragCursor(WebDragOperation operation) OVERRIDE;
90 virtual void GotFocus() OVERRIDE;
91 virtual void TakeFocus(bool reverse) OVERRIDE;
92 virtual void OnFindReply(int request_id,
93 int number_of_matches,
94 const gfx::Rect& selection_rect,
95 int active_match_ordinal,
96 bool final_update);
97
98 private:
99 InterstitialPageImpl* interstitial_page_;
100
101 DISALLOW_COPY_AND_ASSIGN(InterstitialPageRVHDelegateView);
102 };
103
104
105 // We keep a map of the various blocking pages shown as the UI tests need to
106 // be able to retrieve them.
107 typedef std::map<WebContents*, InterstitialPageImpl*> InterstitialPageMap;
108 static InterstitialPageMap* g_web_contents_to_interstitial_page;
109
110 // Initializes g_web_contents_to_interstitial_page in a thread-safe manner.
111 // Should be called before accessing g_web_contents_to_interstitial_page.
112 static void InitInterstitialPageMap() {
113 if (!g_web_contents_to_interstitial_page)
114 g_web_contents_to_interstitial_page = new InterstitialPageMap;
115 }
116
117 InterstitialPage* InterstitialPage::Create(WebContents* web_contents,
118 bool new_navigation,
119 const GURL& url,
120 InterstitialPageDelegate* delegate) {
121 return new InterstitialPageImpl(
122 web_contents,
123 static_cast<RenderWidgetHostDelegate*>(
124 static_cast<WebContentsImpl*>(web_contents)),
125 new_navigation, url, delegate);
126 }
127
128 InterstitialPage* InterstitialPage::GetInterstitialPage(
129 WebContents* web_contents) {
130 InitInterstitialPageMap();
131 InterstitialPageMap::const_iterator iter =
132 g_web_contents_to_interstitial_page->find(web_contents);
133 if (iter == g_web_contents_to_interstitial_page->end())
134 return NULL;
135
136 return iter->second;
137 }
138
139 InterstitialPageImpl::InterstitialPageImpl(
140 WebContents* web_contents,
141 RenderWidgetHostDelegate* render_widget_host_delegate,
142 bool new_navigation,
143 const GURL& url,
144 InterstitialPageDelegate* delegate)
145 : WebContentsObserver(web_contents),
146 web_contents_(web_contents),
147 controller_(static_cast<NavigationControllerImpl*>(
148 &web_contents->GetController())),
149 render_widget_host_delegate_(render_widget_host_delegate),
150 url_(url),
151 new_navigation_(new_navigation),
152 should_discard_pending_nav_entry_(new_navigation),
153 reload_on_dont_proceed_(false),
154 enabled_(true),
155 action_taken_(NO_ACTION),
156 render_view_host_(NULL),
157 original_child_id_(web_contents->GetRenderProcessHost()->GetID()),
158 original_rvh_id_(web_contents->GetRenderViewHost()->GetRoutingID()),
159 should_revert_web_contents_title_(false),
160 web_contents_was_loading_(false),
161 resource_dispatcher_host_notified_(false),
162 rvh_delegate_view_(new InterstitialPageRVHDelegateView(this)),
163 create_view_(true),
164 delegate_(delegate),
165 weak_ptr_factory_(this) {
166 InitInterstitialPageMap();
167 // It would be inconsistent to create an interstitial with no new navigation
168 // (which is the case when the interstitial was triggered by a sub-resource on
169 // a page) when we have a pending entry (in the process of loading a new top
170 // frame).
171 DCHECK(new_navigation || !web_contents->GetController().GetPendingEntry());
172 }
173
174 InterstitialPageImpl::~InterstitialPageImpl() {
175 }
176
177 void InterstitialPageImpl::Show() {
178 if (!enabled())
179 return;
180
181 // If an interstitial is already showing or about to be shown, close it before
182 // showing the new one.
183 // Be careful not to take an action on the old interstitial more than once.
184 InterstitialPageMap::const_iterator iter =
185 g_web_contents_to_interstitial_page->find(web_contents_);
186 if (iter != g_web_contents_to_interstitial_page->end()) {
187 InterstitialPageImpl* interstitial = iter->second;
188 if (interstitial->action_taken_ != NO_ACTION) {
189 interstitial->Hide();
190 } else {
191 // If we are currently showing an interstitial page for which we created
192 // a transient entry and a new interstitial is shown as the result of a
193 // new browser initiated navigation, then that transient entry has already
194 // been discarded and a new pending navigation entry created.
195 // So we should not discard that new pending navigation entry.
196 // See http://crbug.com/9791
197 if (new_navigation_ && interstitial->new_navigation_)
198 interstitial->should_discard_pending_nav_entry_= false;
199 interstitial->DontProceed();
200 }
201 }
202
203 // Block the resource requests for the render view host while it is hidden.
204 TakeActionOnResourceDispatcher(BLOCK);
205 // We need to be notified when the RenderViewHost is destroyed so we can
206 // cancel the blocked requests. We cannot do that on
207 // NOTIFY_WEB_CONTENTS_DESTROYED as at that point the RenderViewHost has
208 // already been destroyed.
209 notification_registrar_.Add(
210 this, NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED,
211 Source<RenderWidgetHost>(controller_->delegate()->GetRenderViewHost()));
212
213 // Update the g_web_contents_to_interstitial_page map.
214 iter = g_web_contents_to_interstitial_page->find(web_contents_);
215 DCHECK(iter == g_web_contents_to_interstitial_page->end());
216 (*g_web_contents_to_interstitial_page)[web_contents_] = this;
217
218 if (new_navigation_) {
219 NavigationEntryImpl* entry = new NavigationEntryImpl;
220 entry->SetURL(url_);
221 entry->SetVirtualURL(url_);
222 entry->set_page_type(PAGE_TYPE_INTERSTITIAL);
223
224 // Give delegates a chance to set some states on the navigation entry.
225 delegate_->OverrideEntry(entry);
226
227 controller_->SetTransientEntry(entry);
228 }
229
230 DCHECK(!render_view_host_);
231 render_view_host_ = static_cast<RenderViewHostImpl*>(CreateRenderViewHost());
232 render_view_host_->AttachToFrameTree();
233 CreateWebContentsView();
234
235 std::string data_url = "data:text/html;charset=utf-8," +
236 net::EscapePath(delegate_->GetHTMLContents());
237 render_view_host_->NavigateToURL(GURL(data_url));
238
239 notification_registrar_.Add(this, NOTIFICATION_NAV_ENTRY_PENDING,
240 Source<NavigationController>(controller_));
241 notification_registrar_.Add(
242 this, NOTIFICATION_DOM_OPERATION_RESPONSE,
243 Source<RenderViewHost>(render_view_host_));
244 }
245
246 void InterstitialPageImpl::Hide() {
247 // We may have already been hidden, and are just waiting to be deleted.
248 // We can't check for enabled() here, because some callers have already
249 // called Disable.
250 if (!render_view_host_)
251 return;
252
253 Disable();
254
255 RenderWidgetHostView* old_view =
256 controller_->delegate()->GetRenderViewHost()->GetView();
257 if (controller_->delegate()->GetInterstitialPage() == this &&
258 old_view &&
259 !old_view->IsShowing() &&
260 !controller_->delegate()->IsHidden()) {
261 // Show the original RVH since we're going away. Note it might not exist if
262 // the renderer crashed while the interstitial was showing.
263 // Note that it is important that we don't call Show() if the view is
264 // already showing. That would result in bad things (unparented HWND on
265 // Windows for example) happening.
266 old_view->Show();
267 }
268
269 // If the focus was on the interstitial, let's keep it to the page.
270 // (Note that in unit-tests the RVH may not have a view).
271 if (render_view_host_->GetView() &&
272 render_view_host_->GetView()->HasFocus() &&
273 controller_->delegate()->GetRenderViewHost()->GetView()) {
274 RenderWidgetHostViewPort::FromRWHV(
275 controller_->delegate()->GetRenderViewHost()->GetView())->Focus();
276 }
277
278 // Shutdown the RVH asynchronously, as we may have been called from a RVH
279 // delegate method, and we can't delete the RVH out from under itself.
280 base::MessageLoop::current()->PostNonNestableTask(
281 FROM_HERE,
282 base::Bind(&InterstitialPageImpl::Shutdown,
283 weak_ptr_factory_.GetWeakPtr(),
284 render_view_host_));
285 render_view_host_ = NULL;
286 frame_tree_.SwapMainFrame(NULL);
287 controller_->delegate()->DetachInterstitialPage();
288 // Let's revert to the original title if necessary.
289 NavigationEntry* entry = controller_->GetVisibleEntry();
290 if (!new_navigation_ && should_revert_web_contents_title_) {
291 entry->SetTitle(original_web_contents_title_);
292 controller_->delegate()->NotifyNavigationStateChanged(
293 INVALIDATE_TYPE_TITLE);
294 }
295
296 InterstitialPageMap::iterator iter =
297 g_web_contents_to_interstitial_page->find(web_contents_);
298 DCHECK(iter != g_web_contents_to_interstitial_page->end());
299 if (iter != g_web_contents_to_interstitial_page->end())
300 g_web_contents_to_interstitial_page->erase(iter);
301
302 // Clear the WebContents pointer, because it may now be deleted.
303 // This signifies that we are in the process of shutting down.
304 web_contents_ = NULL;
305 }
306
307 void InterstitialPageImpl::Observe(
308 int type,
309 const NotificationSource& source,
310 const NotificationDetails& details) {
311 switch (type) {
312 case NOTIFICATION_NAV_ENTRY_PENDING:
313 // We are navigating away from the interstitial (the user has typed a URL
314 // in the location bar or clicked a bookmark). Make sure clicking on the
315 // interstitial will have no effect. Also cancel any blocked requests
316 // on the ResourceDispatcherHost. Note that when we get this notification
317 // the RenderViewHost has not yet navigated so we'll unblock the
318 // RenderViewHost before the resource request for the new page we are
319 // navigating arrives in the ResourceDispatcherHost. This ensures that
320 // request won't be blocked if the same RenderViewHost was used for the
321 // new navigation.
322 Disable();
323 TakeActionOnResourceDispatcher(CANCEL);
324 break;
325 case NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED:
326 if (action_taken_ == NO_ACTION) {
327 // The RenderViewHost is being destroyed (as part of the tab being
328 // closed); make sure we clear the blocked requests.
329 RenderViewHost* rvh = static_cast<RenderViewHost*>(
330 static_cast<RenderViewHostImpl*>(
331 RenderWidgetHostImpl::From(
332 Source<RenderWidgetHost>(source).ptr())));
333 DCHECK(rvh->GetProcess()->GetID() == original_child_id_ &&
334 rvh->GetRoutingID() == original_rvh_id_);
335 TakeActionOnResourceDispatcher(CANCEL);
336 }
337 break;
338 case NOTIFICATION_DOM_OPERATION_RESPONSE:
339 if (enabled()) {
340 Details<DomOperationNotificationDetails> dom_op_details(
341 details);
342 delegate_->CommandReceived(dom_op_details->json);
343 }
344 break;
345 default:
346 NOTREACHED();
347 }
348 }
349
350 void InterstitialPageImpl::NavigationEntryCommitted(
351 const LoadCommittedDetails& load_details) {
352 OnNavigatingAwayOrTabClosing();
353 }
354
355 void InterstitialPageImpl::WebContentsDestroyed(WebContents* web_contents) {
356 OnNavigatingAwayOrTabClosing();
357 }
358
359 RenderViewHostDelegateView* InterstitialPageImpl::GetDelegateView() {
360 return rvh_delegate_view_.get();
361 }
362
363 const GURL& InterstitialPageImpl::GetURL() const {
364 return url_;
365 }
366
367 void InterstitialPageImpl::RenderViewTerminated(
368 RenderViewHost* render_view_host,
369 base::TerminationStatus status,
370 int error_code) {
371 // Our renderer died. This should not happen in normal cases.
372 // If we haven't already started shutdown, just dismiss the interstitial.
373 // We cannot check for enabled() here, because we may have called Disable
374 // without calling Hide.
375 if (render_view_host_)
376 DontProceed();
377 }
378
379 void InterstitialPageImpl::DidNavigate(
380 RenderViewHost* render_view_host,
381 const ViewHostMsg_FrameNavigate_Params& params) {
382 // A fast user could have navigated away from the page that triggered the
383 // interstitial while the interstitial was loading, that would have disabled
384 // us. In that case we can dismiss ourselves.
385 if (!enabled()) {
386 DontProceed();
387 return;
388 }
389 if (PageTransitionCoreTypeIs(params.transition,
390 PAGE_TRANSITION_AUTO_SUBFRAME)) {
391 // No need to handle navigate message from iframe in the interstitial page.
392 return;
393 }
394
395 // The RenderViewHost has loaded its contents, we can show it now.
396 if (!controller_->delegate()->IsHidden())
397 render_view_host_->GetView()->Show();
398 controller_->delegate()->AttachInterstitialPage(this);
399
400 RenderWidgetHostView* rwh_view =
401 controller_->delegate()->GetRenderViewHost()->GetView();
402
403 // The RenderViewHost may already have crashed before we even get here.
404 if (rwh_view) {
405 // If the page has focus, focus the interstitial.
406 if (rwh_view->HasFocus())
407 Focus();
408
409 // Hide the original RVH since we're showing the interstitial instead.
410 rwh_view->Hide();
411 }
412
413 // Notify the tab we are not loading so the throbber is stopped. It also
414 // causes a WebContentsObserver::DidStopLoading callback that the
415 // AutomationProvider (used by the UI tests) expects to consider a navigation
416 // as complete. Without this, navigating in a UI test to a URL that triggers
417 // an interstitial would hang.
418 web_contents_was_loading_ = controller_->delegate()->IsLoading();
419 controller_->delegate()->SetIsLoading(
420 controller_->delegate()->GetRenderViewHost(), false, NULL);
421 }
422
423 void InterstitialPageImpl::UpdateTitle(
424 RenderViewHost* render_view_host,
425 int32 page_id,
426 const string16& title,
427 base::i18n::TextDirection title_direction) {
428 if (!enabled())
429 return;
430
431 DCHECK(render_view_host == render_view_host_);
432 NavigationEntry* entry = controller_->GetVisibleEntry();
433 if (!entry) {
434 // Crash reports from the field indicate this can be NULL.
435 // This is unexpected as InterstitialPages constructed with the
436 // new_navigation flag set to true create a transient navigation entry
437 // (that is returned as the active entry). And the only case so far of
438 // interstitial created with that flag set to false is with the
439 // SafeBrowsingBlockingPage, when the resource triggering the interstitial
440 // is a sub-resource, meaning the main page has already been loaded and a
441 // navigation entry should have been created.
442 NOTREACHED();
443 return;
444 }
445
446 // If this interstitial is shown on an existing navigation entry, we'll need
447 // to remember its title so we can revert to it when hidden.
448 if (!new_navigation_ && !should_revert_web_contents_title_) {
449 original_web_contents_title_ = entry->GetTitle();
450 should_revert_web_contents_title_ = true;
451 }
452 // TODO(evan): make use of title_direction.
453 // http://code.google.com/p/chromium/issues/detail?id=27094
454 entry->SetTitle(title);
455 controller_->delegate()->NotifyNavigationStateChanged(INVALIDATE_TYPE_TITLE);
456 }
457
458 RendererPreferences InterstitialPageImpl::GetRendererPrefs(
459 BrowserContext* browser_context) const {
460 delegate_->OverrideRendererPrefs(&renderer_preferences_);
461 return renderer_preferences_;
462 }
463
464 WebPreferences InterstitialPageImpl::GetWebkitPrefs() {
465 if (!enabled())
466 return WebPreferences();
467
468 return render_view_host_->GetWebkitPrefs(url_);
469 }
470
471 void InterstitialPageImpl::RenderWidgetDeleted(
472 RenderWidgetHostImpl* render_widget_host) {
473 delete this;
474 }
475
476 bool InterstitialPageImpl::PreHandleKeyboardEvent(
477 const NativeWebKeyboardEvent& event,
478 bool* is_keyboard_shortcut) {
479 if (!enabled())
480 return false;
481 return render_widget_host_delegate_->PreHandleKeyboardEvent(
482 event, is_keyboard_shortcut);
483 }
484
485 void InterstitialPageImpl::HandleKeyboardEvent(
486 const NativeWebKeyboardEvent& event) {
487 if (enabled())
488 render_widget_host_delegate_->HandleKeyboardEvent(event);
489 }
490
491 #if defined(OS_WIN) && defined(USE_AURA)
492 gfx::NativeViewAccessible
493 InterstitialPageImpl::GetParentNativeViewAccessible() {
494 return render_widget_host_delegate_->GetParentNativeViewAccessible();
495 }
496 #endif
497
498 WebContents* InterstitialPageImpl::web_contents() const {
499 return web_contents_;
500 }
501
502 RenderViewHost* InterstitialPageImpl::CreateRenderViewHost() {
503 if (!enabled())
504 return NULL;
505
506 // Interstitial pages don't want to share the session storage so we mint a
507 // new one.
508 BrowserContext* browser_context = web_contents()->GetBrowserContext();
509 scoped_refptr<SiteInstance> site_instance =
510 SiteInstance::Create(browser_context);
511 DOMStorageContextWrapper* dom_storage_context =
512 static_cast<DOMStorageContextWrapper*>(
513 BrowserContext::GetStoragePartition(
514 browser_context, site_instance.get())->GetDOMStorageContext());
515 session_storage_namespace_ =
516 new SessionStorageNamespaceImpl(dom_storage_context);
517
518 return RenderViewHostFactory::Create(site_instance.get(),
519 this,
520 this,
521 MSG_ROUTING_NONE,
522 MSG_ROUTING_NONE,
523 false,
524 false);
525 }
526
527 WebContentsView* InterstitialPageImpl::CreateWebContentsView() {
528 if (!enabled() || !create_view_)
529 return NULL;
530 WebContentsView* web_contents_view = web_contents()->GetView();
531 WebContentsViewPort* web_contents_view_port =
532 static_cast<WebContentsViewPort*>(web_contents_view);
533 RenderWidgetHostView* view =
534 web_contents_view_port->CreateViewForWidget(render_view_host_);
535 render_view_host_->SetView(view);
536 render_view_host_->AllowBindings(BINDINGS_POLICY_DOM_AUTOMATION);
537
538 int32 max_page_id = web_contents()->
539 GetMaxPageIDForSiteInstance(render_view_host_->GetSiteInstance());
540 render_view_host_->CreateRenderView(string16(),
541 MSG_ROUTING_NONE,
542 max_page_id);
543 controller_->delegate()->RenderViewForInterstitialPageCreated(
544 render_view_host_);
545 view->SetSize(web_contents_view->GetContainerSize());
546 // Don't show the interstitial until we have navigated to it.
547 view->Hide();
548 return web_contents_view;
549 }
550
551 void InterstitialPageImpl::Proceed() {
552 // Don't repeat this if we are already shutting down. We cannot check for
553 // enabled() here, because we may have called Disable without calling Hide.
554 if (!render_view_host_)
555 return;
556
557 if (action_taken_ != NO_ACTION) {
558 NOTREACHED();
559 return;
560 }
561 Disable();
562 action_taken_ = PROCEED_ACTION;
563
564 // Resumes the throbber, if applicable.
565 if (web_contents_was_loading_)
566 controller_->delegate()->SetIsLoading(
567 controller_->delegate()->GetRenderViewHost(), true, NULL);
568
569 // If this is a new navigation, the old page is going away, so we cancel any
570 // blocked requests for it. If it is not a new navigation, then it means the
571 // interstitial was shown as a result of a resource loading in the page.
572 // Since the user wants to proceed, we'll let any blocked request go through.
573 if (new_navigation_)
574 TakeActionOnResourceDispatcher(CANCEL);
575 else
576 TakeActionOnResourceDispatcher(RESUME);
577
578 // No need to hide if we are a new navigation, we'll get hidden when the
579 // navigation is committed.
580 if (!new_navigation_) {
581 Hide();
582 delegate_->OnProceed();
583 return;
584 }
585
586 delegate_->OnProceed();
587 }
588
589 void InterstitialPageImpl::DontProceed() {
590 // Don't repeat this if we are already shutting down. We cannot check for
591 // enabled() here, because we may have called Disable without calling Hide.
592 if (!render_view_host_)
593 return;
594 DCHECK(action_taken_ != DONT_PROCEED_ACTION);
595
596 Disable();
597 action_taken_ = DONT_PROCEED_ACTION;
598
599 // If this is a new navigation, we are returning to the original page, so we
600 // resume blocked requests for it. If it is not a new navigation, then it
601 // means the interstitial was shown as a result of a resource loading in the
602 // page and we won't return to the original page, so we cancel blocked
603 // requests in that case.
604 if (new_navigation_)
605 TakeActionOnResourceDispatcher(RESUME);
606 else
607 TakeActionOnResourceDispatcher(CANCEL);
608
609 if (should_discard_pending_nav_entry_) {
610 // Since no navigation happens we have to discard the transient entry
611 // explicitely. Note that by calling DiscardNonCommittedEntries() we also
612 // discard the pending entry, which is what we want, since the navigation is
613 // cancelled.
614 controller_->DiscardNonCommittedEntries();
615 }
616
617 if (reload_on_dont_proceed_)
618 controller_->Reload(true);
619
620 Hide();
621 delegate_->OnDontProceed();
622 }
623
624 void InterstitialPageImpl::CancelForNavigation() {
625 // The user is trying to navigate away. We should unblock the renderer and
626 // disable the interstitial, but keep it visible until the navigation
627 // completes.
628 Disable();
629 // If this interstitial was shown for a new navigation, allow any navigations
630 // on the original page to resume (e.g., subresource requests, XHRs, etc).
631 // Otherwise, cancel the pending, possibly dangerous navigations.
632 if (new_navigation_)
633 TakeActionOnResourceDispatcher(RESUME);
634 else
635 TakeActionOnResourceDispatcher(CANCEL);
636 }
637
638 void InterstitialPageImpl::SetSize(const gfx::Size& size) {
639 if (!enabled())
640 return;
641 #if !defined(OS_MACOSX)
642 // When a tab is closed, we might be resized after our view was NULLed
643 // (typically if there was an info-bar).
644 if (render_view_host_->GetView())
645 render_view_host_->GetView()->SetSize(size);
646 #else
647 // TODO(port): Does Mac need to SetSize?
648 NOTIMPLEMENTED();
649 #endif
650 }
651
652 void InterstitialPageImpl::Focus() {
653 // Focus the native window.
654 if (!enabled())
655 return;
656 RenderWidgetHostViewPort::FromRWHV(render_view_host_->GetView())->Focus();
657 }
658
659 void InterstitialPageImpl::FocusThroughTabTraversal(bool reverse) {
660 if (!enabled())
661 return;
662 render_view_host_->SetInitialFocus(reverse);
663 }
664
665 RenderWidgetHostView* InterstitialPageImpl::GetView() {
666 return render_view_host_->GetView();
667 }
668
669 RenderViewHost* InterstitialPageImpl::GetRenderViewHostForTesting() const {
670 return render_view_host_;
671 }
672
673 #if defined(OS_ANDROID)
674 RenderViewHost* InterstitialPageImpl::GetRenderViewHost() const {
675 return render_view_host_;
676 }
677 #endif
678
679 InterstitialPageDelegate* InterstitialPageImpl::GetDelegateForTesting() {
680 return delegate_.get();
681 }
682
683 void InterstitialPageImpl::DontCreateViewForTesting() {
684 create_view_ = false;
685 }
686
687 gfx::Rect InterstitialPageImpl::GetRootWindowResizerRect() const {
688 return gfx::Rect();
689 }
690
691 void InterstitialPageImpl::CreateNewWindow(
692 int route_id,
693 int main_frame_route_id,
694 const ViewHostMsg_CreateWindow_Params& params,
695 SessionStorageNamespace* session_storage_namespace) {
696 NOTREACHED() << "InterstitialPage does not support showing popups yet.";
697 }
698
699 void InterstitialPageImpl::CreateNewWidget(int route_id,
700 WebKit::WebPopupType popup_type) {
701 NOTREACHED() << "InterstitialPage does not support showing drop-downs yet.";
702 }
703
704 void InterstitialPageImpl::CreateNewFullscreenWidget(int route_id) {
705 NOTREACHED()
706 << "InterstitialPage does not support showing full screen popups.";
707 }
708
709 void InterstitialPageImpl::ShowCreatedWindow(int route_id,
710 WindowOpenDisposition disposition,
711 const gfx::Rect& initial_pos,
712 bool user_gesture) {
713 NOTREACHED() << "InterstitialPage does not support showing popups yet.";
714 }
715
716 void InterstitialPageImpl::ShowCreatedWidget(int route_id,
717 const gfx::Rect& initial_pos) {
718 NOTREACHED() << "InterstitialPage does not support showing drop-downs yet.";
719 }
720
721 void InterstitialPageImpl::ShowCreatedFullscreenWidget(int route_id) {
722 NOTREACHED()
723 << "InterstitialPage does not support showing full screen popups.";
724 }
725
726 SessionStorageNamespace* InterstitialPageImpl::GetSessionStorageNamespace(
727 SiteInstance* instance) {
728 return session_storage_namespace_.get();
729 }
730
731 FrameTree* InterstitialPageImpl::GetFrameTree() {
732 return &frame_tree_;
733 }
734
735 void InterstitialPageImpl::Disable() {
736 enabled_ = false;
737 }
738
739 void InterstitialPageImpl::Shutdown(RenderViewHostImpl* render_view_host) {
740 render_view_host->Shutdown();
741 // We are deleted now.
742 }
743
744 void InterstitialPageImpl::OnNavigatingAwayOrTabClosing() {
745 if (action_taken_ == NO_ACTION) {
746 // We are navigating away from the interstitial or closing a tab with an
747 // interstitial. Default to DontProceed(). We don't just call Hide as
748 // subclasses will almost certainly override DontProceed to do some work
749 // (ex: close pending connections).
750 DontProceed();
751 } else {
752 // User decided to proceed and either the navigation was committed or
753 // the tab was closed before that.
754 Hide();
755 }
756 }
757
758 void InterstitialPageImpl::TakeActionOnResourceDispatcher(
759 ResourceRequestAction action) {
760 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)) <<
761 "TakeActionOnResourceDispatcher should be called on the main thread.";
762
763 if (action == CANCEL || action == RESUME) {
764 if (resource_dispatcher_host_notified_)
765 return;
766 resource_dispatcher_host_notified_ = true;
767 }
768
769 // The tab might not have a render_view_host if it was closed (in which case,
770 // we have taken care of the blocked requests when processing
771 // NOTIFY_RENDER_WIDGET_HOST_DESTROYED.
772 // Also we need to test there is a ResourceDispatcherHostImpl, as when unit-
773 // tests we don't have one.
774 RenderViewHostImpl* rvh = RenderViewHostImpl::FromID(original_child_id_,
775 original_rvh_id_);
776 if (!rvh || !ResourceDispatcherHostImpl::Get())
777 return;
778
779 BrowserThread::PostTask(
780 BrowserThread::IO,
781 FROM_HERE,
782 base::Bind(
783 &ResourceRequestHelper,
784 ResourceDispatcherHostImpl::Get(),
785 original_child_id_,
786 original_rvh_id_,
787 action));
788 }
789
790 InterstitialPageImpl::InterstitialPageRVHDelegateView::
791 InterstitialPageRVHDelegateView(InterstitialPageImpl* page)
792 : interstitial_page_(page) {
793 }
794
795 void InterstitialPageImpl::InterstitialPageRVHDelegateView::ShowPopupMenu(
796 const gfx::Rect& bounds,
797 int item_height,
798 double item_font_size,
799 int selected_item,
800 const std::vector<MenuItem>& items,
801 bool right_aligned,
802 bool allow_multiple_selection) {
803 NOTREACHED() << "InterstitialPage does not support showing popup menus.";
804 }
805
806 void InterstitialPageImpl::InterstitialPageRVHDelegateView::StartDragging(
807 const DropData& drop_data,
808 WebDragOperationsMask allowed_operations,
809 const gfx::ImageSkia& image,
810 const gfx::Vector2d& image_offset,
811 const DragEventSourceInfo& event_info) {
812 NOTREACHED() << "InterstitialPage does not support dragging yet.";
813 }
814
815 void InterstitialPageImpl::InterstitialPageRVHDelegateView::UpdateDragCursor(
816 WebDragOperation) {
817 NOTREACHED() << "InterstitialPage does not support dragging yet.";
818 }
819
820 void InterstitialPageImpl::InterstitialPageRVHDelegateView::GotFocus() {
821 WebContents* web_contents = interstitial_page_->web_contents();
822 if (web_contents && web_contents->GetDelegate())
823 web_contents->GetDelegate()->WebContentsFocused(web_contents);
824 }
825
826 void InterstitialPageImpl::InterstitialPageRVHDelegateView::TakeFocus(
827 bool reverse) {
828 if (!interstitial_page_->web_contents())
829 return;
830 WebContentsImpl* web_contents =
831 static_cast<WebContentsImpl*>(interstitial_page_->web_contents());
832 if (!web_contents->GetDelegateView())
833 return;
834
835 web_contents->GetDelegateView()->TakeFocus(reverse);
836 }
837
838 void InterstitialPageImpl::InterstitialPageRVHDelegateView::OnFindReply(
839 int request_id, int number_of_matches, const gfx::Rect& selection_rect,
840 int active_match_ordinal, bool final_update) {
841 }
842
843 } // namespace content
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