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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/web_contents/web_contents_impl.h" | 5 #include "content/browser/web_contents/web_contents_impl.h" |
6 | 6 |
7 #include <utility> | 7 #include <utility> |
8 | 8 |
9 #include "base/command_line.h" | 9 #include "base/command_line.h" |
10 #include "base/lazy_instance.h" | 10 #include "base/lazy_instance.h" |
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114 #endif | 114 #endif |
115 | 115 |
116 #if defined(OS_MACOSX) | 116 #if defined(OS_MACOSX) |
117 #include "base/mac/foundation_util.h" | 117 #include "base/mac/foundation_util.h" |
118 #endif | 118 #endif |
119 | 119 |
120 namespace content { | 120 namespace content { |
121 namespace { | 121 namespace { |
122 | 122 |
123 const int kMinimumDelayBetweenLoadingUpdatesMS = 100; | 123 const int kMinimumDelayBetweenLoadingUpdatesMS = 100; |
| 124 |
| 125 // This matches what Blink's ProgressTracker has traditionally used for a |
| 126 // minimum progress value. |
| 127 const double kMinimumLoadingProgress = 0.1; |
| 128 |
124 const char kDotGoogleDotCom[] = ".google.com"; | 129 const char kDotGoogleDotCom[] = ".google.com"; |
125 | 130 |
126 #if defined(OS_ANDROID) | 131 #if defined(OS_ANDROID) |
127 const char kWebContentsAndroidKey[] = "web_contents_android"; | 132 const char kWebContentsAndroidKey[] = "web_contents_android"; |
128 #endif // OS_ANDROID | 133 #endif // OS_ANDROID |
129 | 134 |
130 base::LazyInstance<std::vector<WebContentsImpl::CreatedCallback> > | 135 base::LazyInstance<std::vector<WebContentsImpl::CreatedCallback> > |
131 g_created_callbacks = LAZY_INSTANCE_INITIALIZER; | 136 g_created_callbacks = LAZY_INSTANCE_INITIALIZER; |
132 | 137 |
133 static int StartDownload(RenderFrameHost* rfh, | 138 static int StartDownload(RenderFrameHost* rfh, |
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154 } | 159 } |
155 | 160 |
156 // Helper function for retrieving all the sites in a frame tree. | 161 // Helper function for retrieving all the sites in a frame tree. |
157 bool CollectSites(BrowserContext* context, | 162 bool CollectSites(BrowserContext* context, |
158 std::set<GURL>* sites, | 163 std::set<GURL>* sites, |
159 FrameTreeNode* node) { | 164 FrameTreeNode* node) { |
160 sites->insert(SiteInstance::GetSiteForURL(context, node->current_url())); | 165 sites->insert(SiteInstance::GetSiteForURL(context, node->current_url())); |
161 return true; | 166 return true; |
162 } | 167 } |
163 | 168 |
164 // Helper function used with FrameTree::ForEach() for retrieving the total | |
165 // loading progress and number of frames in a frame tree. | |
166 bool CollectLoadProgress(double* progress, | |
167 int* frame_count, | |
168 FrameTreeNode* node) { | |
169 // Ignore the current frame if it has not started loading. | |
170 double frame_progress = node->GetLoadingProgress(); | |
171 if (frame_progress == RenderFrameHostImpl::kLoadingProgressNotStarted) | |
172 return true; | |
173 | |
174 // Collect progress. | |
175 *progress += node->GetLoadingProgress(); | |
176 (*frame_count)++; | |
177 return true; | |
178 } | |
179 | |
180 // Helper function used with FrameTree::ForEach() to check if at least one of | |
181 // the nodes is loading. | |
182 bool IsNodeLoading(bool* is_loading, FrameTreeNode* node) { | |
183 if (node->IsLoading()) { | |
184 // There is at least one node loading, so abort traversal. | |
185 *is_loading = true; | |
186 return false; | |
187 } | |
188 return true; | |
189 } | |
190 | |
191 // Helper function used with FrameTree::ForEach() to reset the load progress. | |
192 bool ResetLoadProgress(FrameTreeNode* node) { | |
193 node->current_frame_host()->set_loading_progress( | |
194 RenderFrameHostImpl::kLoadingProgressNotStarted); | |
195 return true; | |
196 } | |
197 | |
198 bool ForEachFrameInternal( | 169 bool ForEachFrameInternal( |
199 const base::Callback<void(RenderFrameHost*)>& on_frame, | 170 const base::Callback<void(RenderFrameHost*)>& on_frame, |
200 FrameTreeNode* node) { | 171 FrameTreeNode* node) { |
201 on_frame.Run(node->current_frame_host()); | 172 on_frame.Run(node->current_frame_host()); |
202 return true; | 173 return true; |
203 } | 174 } |
204 | 175 |
205 bool ForEachPendingFrameInternal( | 176 bool ForEachPendingFrameInternal( |
206 const base::Callback<void(RenderFrameHost*)>& on_frame, | 177 const base::Callback<void(RenderFrameHost*)>& on_frame, |
207 FrameTreeNode* node) { | 178 FrameTreeNode* node) { |
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249 // termination is not allowed for the current RenderFrameHost of | 220 // termination is not allowed for the current RenderFrameHost of |
250 // |frame_tree_node|. Used with FrameTree::ForEach. | 221 // |frame_tree_node|. Used with FrameTree::ForEach. |
251 bool SuddenTerminationAllowed(bool* sudden_termination_allowed, | 222 bool SuddenTerminationAllowed(bool* sudden_termination_allowed, |
252 FrameTreeNode* frame_tree_node) { | 223 FrameTreeNode* frame_tree_node) { |
253 if (frame_tree_node->current_frame_host()->SuddenTerminationAllowed()) | 224 if (frame_tree_node->current_frame_host()->SuddenTerminationAllowed()) |
254 return true; | 225 return true; |
255 *sudden_termination_allowed = false; | 226 *sudden_termination_allowed = false; |
256 return false; | 227 return false; |
257 } | 228 } |
258 | 229 |
259 // Returns true if at least one of the nodes in the |frame_tree| is loading. | |
260 bool IsFrameTreeLoading(FrameTree& frame_tree) { | |
261 bool is_loading = false; | |
262 frame_tree.ForEach(base::Bind(&IsNodeLoading, &is_loading)); | |
263 return is_loading; | |
264 } | |
265 | |
266 } // namespace | 230 } // namespace |
267 | 231 |
268 WebContents* WebContents::Create(const WebContents::CreateParams& params) { | 232 WebContents* WebContents::Create(const WebContents::CreateParams& params) { |
269 return WebContentsImpl::CreateWithOpener( | 233 return WebContentsImpl::CreateWithOpener( |
270 params, static_cast<WebContentsImpl*>(params.opener)); | 234 params, static_cast<WebContentsImpl*>(params.opener)); |
271 } | 235 } |
272 | 236 |
273 WebContents* WebContents::CreateWithSessionStorage( | 237 WebContents* WebContents::CreateWithSessionStorage( |
274 const WebContents::CreateParams& params, | 238 const WebContents::CreateParams& params, |
275 const SessionStorageNamespaceMap& session_storage_namespace_map) { | 239 const SessionStorageNamespaceMap& session_storage_namespace_map) { |
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365 this, | 329 this, |
366 this, | 330 this, |
367 this), | 331 this), |
368 is_loading_(false), | 332 is_loading_(false), |
369 is_load_to_different_document_(false), | 333 is_load_to_different_document_(false), |
370 crashed_status_(base::TERMINATION_STATUS_STILL_RUNNING), | 334 crashed_status_(base::TERMINATION_STATUS_STILL_RUNNING), |
371 crashed_error_code_(0), | 335 crashed_error_code_(0), |
372 waiting_for_response_(false), | 336 waiting_for_response_(false), |
373 load_state_(net::LOAD_STATE_IDLE, base::string16()), | 337 load_state_(net::LOAD_STATE_IDLE, base::string16()), |
374 loading_total_progress_(0.0), | 338 loading_total_progress_(0.0), |
| 339 loading_frames_in_progress_(0), |
375 upload_size_(0), | 340 upload_size_(0), |
376 upload_position_(0), | 341 upload_position_(0), |
377 displayed_insecure_content_(false), | 342 displayed_insecure_content_(false), |
378 has_accessed_initial_document_(false), | 343 has_accessed_initial_document_(false), |
379 theme_color_(SK_ColorTRANSPARENT), | 344 theme_color_(SK_ColorTRANSPARENT), |
380 last_sent_theme_color_(SK_ColorTRANSPARENT), | 345 last_sent_theme_color_(SK_ColorTRANSPARENT), |
381 capturer_count_(0), | 346 capturer_count_(0), |
382 should_normally_be_visible_(true), | 347 should_normally_be_visible_(true), |
383 is_being_destroyed_(false), | 348 is_being_destroyed_(false), |
384 notify_disconnection_(false), | 349 notify_disconnection_(false), |
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2904 FOR_EACH_OBSERVER( | 2869 FOR_EACH_OBSERVER( |
2905 WebContentsObserver, observers_, DidFinishLoad(rfh, validated_url)); | 2870 WebContentsObserver, observers_, DidFinishLoad(rfh, validated_url)); |
2906 } | 2871 } |
2907 | 2872 |
2908 void WebContentsImpl::OnDidStartLoading(bool to_different_document) { | 2873 void WebContentsImpl::OnDidStartLoading(bool to_different_document) { |
2909 if (!HasValidFrameSource()) | 2874 if (!HasValidFrameSource()) |
2910 return; | 2875 return; |
2911 | 2876 |
2912 RenderFrameHostImpl* rfh = | 2877 RenderFrameHostImpl* rfh = |
2913 static_cast<RenderFrameHostImpl*>(render_frame_message_source_); | 2878 static_cast<RenderFrameHostImpl*>(render_frame_message_source_); |
| 2879 int64 render_frame_id = rfh->frame_tree_node()->frame_tree_node_id(); |
2914 | 2880 |
2915 // Any main frame load to a new document should reset the load progress, since | 2881 // Any main frame load to a new document should reset the load progress, since |
2916 // it will replace the current page and any frames. | 2882 // it will replace the current page and any frames. |
2917 if (to_different_document && !rfh->GetParent()) { | 2883 if (to_different_document && !rfh->GetParent()) { |
2918 ResetLoadProgressState(); | 2884 ResetLoadProgressState(); |
2919 rfh->set_is_loading(false); | 2885 loading_frames_in_progress_ = 0; |
| 2886 rfh->frame_tree_node()->set_is_loading(false); |
2920 } | 2887 } |
2921 | 2888 |
2922 // This method should never be called when the frame is loading. | 2889 // It is possible to get multiple calls to OnDidStartLoading that don't have |
2923 DCHECK(!rfh->is_loading()); | 2890 // corresponding calls to OnDidStopLoading: |
| 2891 // - With "swappedout://" URLs, this happens when a RenderView gets swapped |
| 2892 // out for a cross-process navigation, and it turns into a placeholder for |
| 2893 // one being rendered in a different process. |
| 2894 // - Also, there might be more than one RenderFrameHost sharing the same |
| 2895 // FrameTreeNode (and thus sharing its ID) each sending a start. |
| 2896 // - But in the future, once clamy@ moves navigation network requests to the |
| 2897 // browser process, there's a good chance that callbacks about starting and |
| 2898 // stopping will all be handled by the browser. When that happens, there |
| 2899 // should no longer be a start/stop call imbalance. TODO(avi): When this |
| 2900 // future arrives, update this code to not allow this case. |
| 2901 if (rfh->frame_tree_node()->is_loading()) |
| 2902 return; |
2924 | 2903 |
2925 if (!IsFrameTreeLoading(frame_tree_)) | 2904 DCHECK_GE(loading_frames_in_progress_, 0); |
| 2905 if (loading_frames_in_progress_ == 0) |
2926 DidStartLoading(rfh, to_different_document); | 2906 DidStartLoading(rfh, to_different_document); |
2927 | 2907 |
2928 rfh->set_is_loading(true); | 2908 ++loading_frames_in_progress_; |
2929 rfh->set_loading_progress(RenderFrameHostImpl::kLoadingProgressMinimum); | 2909 rfh->frame_tree_node()->set_is_loading(true); |
2930 | 2910 |
2931 // Notify the RenderFrameHostManager of the event. | 2911 // Notify the RenderFrameHostManager of the event. |
2932 rfh->frame_tree_node()->render_manager()->OnDidStartLoading(); | 2912 rfh->frame_tree_node()->render_manager()->OnDidStartLoading(); |
2933 | 2913 |
| 2914 loading_progresses_[render_frame_id] = kMinimumLoadingProgress; |
2934 SendLoadProgressChanged(); | 2915 SendLoadProgressChanged(); |
2935 } | 2916 } |
2936 | 2917 |
2937 void WebContentsImpl::OnDidStopLoading() { | 2918 void WebContentsImpl::OnDidStopLoading() { |
2938 if (!HasValidFrameSource()) | 2919 if (!HasValidFrameSource()) |
2939 return; | 2920 return; |
2940 | 2921 |
2941 RenderFrameHostImpl* rfh = | 2922 RenderFrameHostImpl* rfh = |
2942 static_cast<RenderFrameHostImpl*>(render_frame_message_source_); | 2923 static_cast<RenderFrameHostImpl*>(render_frame_message_source_); |
| 2924 int64 render_frame_id = rfh->frame_tree_node()->frame_tree_node_id(); |
| 2925 rfh->frame_tree_node()->set_is_loading(false); |
2943 | 2926 |
2944 // This method should never be called when the frame is not loading. | 2927 if (loading_progresses_.find(render_frame_id) != loading_progresses_.end()) { |
2945 DCHECK(rfh->is_loading()); | 2928 // Load stopped while we were still tracking load. Make sure we update |
2946 rfh->set_is_loading(false); | 2929 // progress based on this frame's completion. |
2947 rfh->set_loading_progress(RenderFrameHostImpl::kLoadingProgressDone); | 2930 loading_progresses_[render_frame_id] = 1.0; |
2948 | 2931 SendLoadProgressChanged(); |
2949 // Update progress based on this frame's completion. | 2932 // Then we clean-up our states. |
2950 SendLoadProgressChanged(); | 2933 if (loading_total_progress_ == 1.0) |
2951 | 2934 ResetLoadProgressState(); |
2952 // Then clean-up the states. | 2935 } |
2953 if (loading_total_progress_ == 1.0) | |
2954 ResetLoadProgressState(); | |
2955 | 2936 |
2956 // Notify the RenderFrameHostManager of the event. | 2937 // Notify the RenderFrameHostManager of the event. |
2957 rfh->frame_tree_node()->render_manager()->OnDidStopLoading(); | 2938 rfh->frame_tree_node()->render_manager()->OnDidStopLoading(); |
2958 | 2939 |
2959 if (!IsFrameTreeLoading(frame_tree_)) | 2940 // TODO(japhet): This should be a DCHECK, but the pdf plugin sometimes |
| 2941 // calls DidStopLoading() without a matching DidStartLoading(). |
| 2942 if (loading_frames_in_progress_ == 0) |
| 2943 return; |
| 2944 --loading_frames_in_progress_; |
| 2945 if (loading_frames_in_progress_ == 0) |
2960 DidStopLoading(rfh); | 2946 DidStopLoading(rfh); |
2961 } | 2947 } |
2962 | 2948 |
2963 void WebContentsImpl::OnDidChangeLoadProgress(double load_progress) { | 2949 void WebContentsImpl::OnDidChangeLoadProgress(double load_progress) { |
2964 if (!HasValidFrameSource()) | 2950 if (!HasValidFrameSource()) |
2965 return; | 2951 return; |
2966 | 2952 |
2967 RenderFrameHostImpl* rfh = | 2953 RenderFrameHostImpl* rfh = |
2968 static_cast<RenderFrameHostImpl*>(render_frame_message_source_); | 2954 static_cast<RenderFrameHostImpl*>(render_frame_message_source_); |
| 2955 int64 render_frame_id = rfh->frame_tree_node()->frame_tree_node_id(); |
2969 | 2956 |
2970 rfh->set_loading_progress(load_progress); | 2957 loading_progresses_[render_frame_id] = load_progress; |
2971 | 2958 |
2972 // We notify progress change immediately for the first and last updates. | 2959 // We notify progress change immediately for the first and last updates. |
2973 // Also, since the message loop may be pretty busy when a page is loaded, it | 2960 // Also, since the message loop may be pretty busy when a page is loaded, it |
2974 // might not execute a posted task in a timely manner so we make sure to | 2961 // might not execute a posted task in a timely manner so we make sure to |
2975 // immediately send progress report if enough time has passed. | 2962 // immediately send progress report if enough time has passed. |
2976 base::TimeDelta min_delay = | 2963 base::TimeDelta min_delay = |
2977 base::TimeDelta::FromMilliseconds(kMinimumDelayBetweenLoadingUpdatesMS); | 2964 base::TimeDelta::FromMilliseconds(kMinimumDelayBetweenLoadingUpdatesMS); |
2978 if (load_progress == 1.0 || loading_last_progress_update_.is_null() || | 2965 if (load_progress == 1.0 || loading_last_progress_update_.is_null() || |
2979 base::TimeTicks::Now() - loading_last_progress_update_ > min_delay) { | 2966 base::TimeTicks::Now() - loading_last_progress_update_ > min_delay) { |
2980 // If there is a pending task to send progress, it is now obsolete. | 2967 // If there is a pending task to send progress, it is now obsolete. |
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3445 Details<std::pair<NavigationEntry*, bool> >(&details)); | 3432 Details<std::pair<NavigationEntry*, bool> >(&details)); |
3446 | 3433 |
3447 return true; | 3434 return true; |
3448 } | 3435 } |
3449 | 3436 |
3450 void WebContentsImpl::SendLoadProgressChanged() { | 3437 void WebContentsImpl::SendLoadProgressChanged() { |
3451 loading_last_progress_update_ = base::TimeTicks::Now(); | 3438 loading_last_progress_update_ = base::TimeTicks::Now(); |
3452 double progress = 0.0; | 3439 double progress = 0.0; |
3453 int frame_count = 0; | 3440 int frame_count = 0; |
3454 | 3441 |
3455 frame_tree_.ForEach( | 3442 for (LoadingProgressMap::iterator it = loading_progresses_.begin(); |
3456 base::Bind(&CollectLoadProgress, &progress, &frame_count)); | 3443 it != loading_progresses_.end(); |
3457 if (frame_count != 0) | 3444 ++it) { |
3458 progress /= frame_count; | 3445 progress += it->second; |
3459 DCHECK_LE(progress, 1.0); | 3446 ++frame_count; |
| 3447 } |
| 3448 if (frame_count == 0) |
| 3449 return; |
| 3450 progress /= frame_count; |
| 3451 DCHECK(progress <= 1.0); |
3460 | 3452 |
3461 if (progress <= loading_total_progress_) | 3453 if (progress <= loading_total_progress_) |
3462 return; | 3454 return; |
3463 loading_total_progress_ = progress; | 3455 loading_total_progress_ = progress; |
3464 | 3456 |
3465 if (delegate_) | 3457 if (delegate_) |
3466 delegate_->LoadProgressChanged(this, progress); | 3458 delegate_->LoadProgressChanged(this, progress); |
3467 } | 3459 } |
3468 | 3460 |
3469 void WebContentsImpl::ResetLoadProgressState() { | 3461 void WebContentsImpl::ResetLoadProgressState() { |
3470 frame_tree_.ForEach(base::Bind(&ResetLoadProgress)); | 3462 loading_progresses_.clear(); |
3471 loading_total_progress_ = 0.0; | 3463 loading_total_progress_ = 0.0; |
3472 loading_weak_factory_.InvalidateWeakPtrs(); | 3464 loading_weak_factory_.InvalidateWeakPtrs(); |
3473 loading_last_progress_update_ = base::TimeTicks(); | 3465 loading_last_progress_update_ = base::TimeTicks(); |
3474 } | 3466 } |
3475 | 3467 |
3476 void WebContentsImpl::NotifyViewSwapped(RenderViewHost* old_host, | 3468 void WebContentsImpl::NotifyViewSwapped(RenderViewHost* old_host, |
3477 RenderViewHost* new_host) { | 3469 RenderViewHost* new_host) { |
3478 // After sending out a swap notification, we need to send a disconnect | 3470 // After sending out a swap notification, we need to send a disconnect |
3479 // notification so that clients that pick up a pointer to |this| can NULL the | 3471 // notification so that clients that pick up a pointer to |this| can NULL the |
3480 // pointer. See Bug 1230284. | 3472 // pointer. See Bug 1230284. |
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3765 | 3757 |
3766 SetIsLoading(rvh, false, true, NULL); | 3758 SetIsLoading(rvh, false, true, NULL); |
3767 NotifyDisconnected(); | 3759 NotifyDisconnected(); |
3768 SetIsCrashed(status, error_code); | 3760 SetIsCrashed(status, error_code); |
3769 | 3761 |
3770 // Reset the loading progress. TODO(avi): What does it mean to have a | 3762 // Reset the loading progress. TODO(avi): What does it mean to have a |
3771 // "renderer crash" when there is more than one renderer process serving a | 3763 // "renderer crash" when there is more than one renderer process serving a |
3772 // webpage? Once this function is called at a more granular frame level, we | 3764 // webpage? Once this function is called at a more granular frame level, we |
3773 // probably will need to more granularly reset the state here. | 3765 // probably will need to more granularly reset the state here. |
3774 ResetLoadProgressState(); | 3766 ResetLoadProgressState(); |
| 3767 loading_frames_in_progress_ = 0; |
3775 | 3768 |
3776 FOR_EACH_OBSERVER(WebContentsObserver, | 3769 FOR_EACH_OBSERVER(WebContentsObserver, |
3777 observers_, | 3770 observers_, |
3778 RenderProcessGone(GetCrashedStatus())); | 3771 RenderProcessGone(GetCrashedStatus())); |
3779 } | 3772 } |
3780 | 3773 |
3781 void WebContentsImpl::RenderViewDeleted(RenderViewHost* rvh) { | 3774 void WebContentsImpl::RenderViewDeleted(RenderViewHost* rvh) { |
3782 FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewDeleted(rvh)); | 3775 FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewDeleted(rvh)); |
3783 } | 3776 } |
3784 | 3777 |
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4563 node->render_manager()->ResumeResponseDeferredAtStart(); | 4556 node->render_manager()->ResumeResponseDeferredAtStart(); |
4564 } | 4557 } |
4565 | 4558 |
4566 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) { | 4559 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) { |
4567 force_disable_overscroll_content_ = force_disable; | 4560 force_disable_overscroll_content_ = force_disable; |
4568 if (view_) | 4561 if (view_) |
4569 view_->SetOverscrollControllerEnabled(CanOverscrollContent()); | 4562 view_->SetOverscrollControllerEnabled(CanOverscrollContent()); |
4570 } | 4563 } |
4571 | 4564 |
4572 } // namespace content | 4565 } // namespace content |
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