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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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81 // Notify all local frames that we have entered fullscreen. | 81 // Notify all local frames that we have entered fullscreen. |
82 for (Frame* frame = m_webViewImpl->page()->mainFrame(); frame; | 82 for (Frame* frame = m_webViewImpl->page()->mainFrame(); frame; |
83 frame = frame->tree().traverseNext()) { | 83 frame = frame->tree().traverseNext()) { |
84 if (!frame->isLocalFrame()) | 84 if (!frame->isLocalFrame()) |
85 continue; | 85 continue; |
86 if (Document* document = toLocalFrame(frame)->document()) { | 86 if (Document* document = toLocalFrame(frame)->document()) { |
87 if (Fullscreen* fullscreen = Fullscreen::fromIfExists(*document)) | 87 if (Fullscreen* fullscreen = Fullscreen::fromIfExists(*document)) |
88 fullscreen->didEnterFullscreen(); | 88 fullscreen->didEnterFullscreen(); |
89 } | 89 } |
90 } | 90 } |
| 91 |
| 92 // TODO(foolip): If the top level browsing context (main frame) ends up with |
| 93 // no fullscreen element, exit fullscreen again to recover. |
91 } | 94 } |
92 | 95 |
93 void FullscreenController::didExitFullscreen() { | 96 void FullscreenController::didExitFullscreen() { |
94 // The browser process can exit fullscreen at any time, e.g. if the user | 97 // The browser process can exit fullscreen at any time, e.g. if the user |
95 // presses Esc. After |Browser::EnterFullscreenModeForTab()|, | 98 // presses Esc. After |Browser::EnterFullscreenModeForTab()|, |
96 // |Browser::ExitFullscreenModeForTab()| will make it seem like we exit when | 99 // |Browser::ExitFullscreenModeForTab()| will make it seem like we exit when |
97 // not even in fullscreen. Do nothing. | 100 // not even in fullscreen. Do nothing. |
98 if (m_state == State::Initial) | 101 if (m_state == State::Initial) |
99 return; | 102 return; |
100 | 103 |
101 updatePageScaleConstraints(true); | 104 updatePageScaleConstraints(true); |
102 | 105 |
103 // Set |m_state| so that any |exitFullscreen()| calls from within | |
104 // |Fullscreen::didExitFullscreen()| do not call | |
105 // |WebFrameClient::exitFullscreen()| again. | |
106 // TODO(foolip): Remove this when state changes and events are synchronized | |
107 // with animation frames. https://crbug.com/402376 | |
108 m_state = State::ExitingFullscreen; | |
109 | |
110 // Notify all local frames that we have exited fullscreen. | |
111 // TODO(foolip): This should only need to notify the topmost local roots. That | |
112 // doesn't currently work because |Fullscreen::m_currentFullScreenElement| | |
113 // isn't set for the topmost document when an iframe goes fullscreen, but can | |
114 // be done once |m_currentFullScreenElement| is gone and all state is in the | |
115 // fullscreen element stack. https://crbug.com/402421 | |
116 for (Frame* frame = m_webViewImpl->page()->mainFrame(); frame; | |
117 frame = frame->tree().traverseNext()) { | |
118 if (!frame->isLocalFrame()) | |
119 continue; | |
120 if (Document* document = toLocalFrame(frame)->document()) { | |
121 if (Fullscreen* fullscreen = Fullscreen::fromIfExists(*document)) | |
122 fullscreen->didExitFullscreen(); | |
123 } | |
124 } | |
125 | |
126 // We need to wait until style and layout are updated in order to properly | 106 // We need to wait until style and layout are updated in order to properly |
127 // restore scroll offsets since content may not be overflowing in the same way | 107 // restore scroll offsets since content may not be overflowing in the same way |
128 // until they are. | 108 // until they are. |
129 m_state = State::NeedsScrollAndScaleRestore; | 109 m_state = State::NeedsScrollAndScaleRestore; |
| 110 |
| 111 // Notify the topmost local frames that we have exited fullscreen. |
| 112 // |Fullscreen::didExitFullscreen()| will take care of descendant frames. |
| 113 for (Frame* frame = m_webViewImpl->page()->mainFrame(); frame;) { |
| 114 Frame* nextFrame = frame->tree().traverseNext(); |
| 115 |
| 116 if (frame->isRemoteFrame()) { |
| 117 frame = nextFrame; |
| 118 continue; |
| 119 } |
| 120 |
| 121 DCHECK(frame->isLocalRoot()); |
| 122 if (Document* document = toLocalFrame(frame)->document()) { |
| 123 if (Fullscreen* fullscreen = Fullscreen::fromIfExists(*document)) |
| 124 fullscreen->didExitFullscreen(); |
| 125 } |
| 126 |
| 127 // Skip over all descendant frames. |
| 128 while (nextFrame && nextFrame->tree().isDescendantOf(frame)) |
| 129 nextFrame = nextFrame->tree().traverseNext(); |
| 130 frame = nextFrame; |
| 131 } |
130 } | 132 } |
131 | 133 |
132 void FullscreenController::enterFullscreen(LocalFrame& frame) { | 134 void FullscreenController::enterFullscreen(LocalFrame& frame) { |
133 // If already fullscreen or exiting fullscreen, synchronously call | 135 // If already fullscreen or exiting fullscreen, synchronously call |
134 // |didEnterFullscreen()|. When exiting, the coming |didExitFullscren()| call | 136 // |didEnterFullscreen()|. When exiting, the coming |didExitFullscren()| call |
135 // will again notify all frames. | 137 // will again notify all frames. |
136 if (m_state == State::Fullscreen || m_state == State::ExitingFullscreen) { | 138 if (m_state == State::Fullscreen || m_state == State::ExitingFullscreen) { |
137 State oldState = m_state; | 139 State oldState = m_state; |
138 m_state = State::EnteringFullscreen; | 140 m_state = State::EnteringFullscreen; |
139 didEnterFullscreen(); | 141 didEnterFullscreen(); |
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176 webFrameClient(frame).exitFullscreen(); | 178 webFrameClient(frame).exitFullscreen(); |
177 | 179 |
178 m_state = State::ExitingFullscreen; | 180 m_state = State::ExitingFullscreen; |
179 } | 181 } |
180 | 182 |
181 void FullscreenController::fullscreenElementChanged(Element* fromElement, | 183 void FullscreenController::fullscreenElementChanged(Element* fromElement, |
182 Element* toElement) { | 184 Element* toElement) { |
183 DCHECK_NE(fromElement, toElement); | 185 DCHECK_NE(fromElement, toElement); |
184 | 186 |
185 if (toElement) { | 187 if (toElement) { |
186 DCHECK(Fullscreen::isCurrentFullScreenElement(*toElement)); | 188 DCHECK(Fullscreen::isFullscreenElement(*toElement)); |
187 | 189 |
188 if (isHTMLVideoElement(*toElement)) { | 190 if (isHTMLVideoElement(*toElement)) { |
189 HTMLVideoElement& videoElement = toHTMLVideoElement(*toElement); | 191 HTMLVideoElement& videoElement = toHTMLVideoElement(*toElement); |
190 videoElement.didEnterFullscreen(); | 192 videoElement.didEnterFullscreen(); |
191 | 193 |
192 // If the video uses overlay fullscreen mode, make the background | 194 // If the video uses overlay fullscreen mode, make the background |
193 // transparent. | 195 // transparent. |
194 if (videoElement.usesOverlayFullscreenVideo() && | 196 if (videoElement.usesOverlayFullscreenVideo() && |
195 m_webViewImpl->layerTreeView()) { | 197 m_webViewImpl->layerTreeView()) { |
196 m_webViewImpl->layerTreeView()->setHasTransparentBackground(true); | 198 m_webViewImpl->layerTreeView()->setHasTransparentBackground(true); |
197 } | 199 } |
198 } | 200 } |
199 } | 201 } |
200 | 202 |
201 if (fromElement) { | 203 if (fromElement) { |
202 DCHECK(!Fullscreen::isCurrentFullScreenElement(*fromElement)); | 204 DCHECK(!Fullscreen::isFullscreenElement(*fromElement)); |
203 | 205 |
204 if (isHTMLVideoElement(*fromElement)) { | 206 if (isHTMLVideoElement(*fromElement)) { |
205 // If the video used overlay fullscreen mode, restore the transparency. | 207 // If the video used overlay fullscreen mode, restore the transparency. |
206 if (m_webViewImpl->layerTreeView()) { | 208 if (m_webViewImpl->layerTreeView()) { |
207 m_webViewImpl->layerTreeView()->setHasTransparentBackground( | 209 m_webViewImpl->layerTreeView()->setHasTransparentBackground( |
208 m_webViewImpl->isTransparent()); | 210 m_webViewImpl->isTransparent()); |
209 } | 211 } |
210 | 212 |
211 HTMLVideoElement& videoElement = toHTMLVideoElement(*fromElement); | 213 HTMLVideoElement& videoElement = toHTMLVideoElement(*fromElement); |
212 videoElement.didExitFullscreen(); | 214 videoElement.didExitFullscreen(); |
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267 // again to ensure the final constraints pick up the latest contents size. | 269 // again to ensure the final constraints pick up the latest contents size. |
268 m_webViewImpl->didChangeContentsSize(); | 270 m_webViewImpl->didChangeContentsSize(); |
269 if (m_webViewImpl->mainFrameImpl() && | 271 if (m_webViewImpl->mainFrameImpl() && |
270 m_webViewImpl->mainFrameImpl()->frameView()) | 272 m_webViewImpl->mainFrameImpl()->frameView()) |
271 m_webViewImpl->mainFrameImpl()->frameView()->setNeedsLayout(); | 273 m_webViewImpl->mainFrameImpl()->frameView()->setNeedsLayout(); |
272 | 274 |
273 m_webViewImpl->updateMainFrameLayoutSize(); | 275 m_webViewImpl->updateMainFrameLayoutSize(); |
274 } | 276 } |
275 | 277 |
276 } // namespace blink | 278 } // namespace blink |
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