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1 /* | |
2 * Copyright (C) 2010 Apple Inc. All rights reserved. | |
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 INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y | |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y | |
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N | |
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
23 */ | |
24 | |
25 #include "config.h" | |
26 #include "core/rendering/RenderFullScreen.h" | |
27 | |
28 #include "core/dom/Fullscreen.h" | |
29 #include "core/frame/FrameHost.h" | |
30 #include "core/frame/Settings.h" | |
31 #include "core/page/Chrome.h" | |
32 #include "core/page/Page.h" | |
33 #include "core/rendering/RenderBlockFlow.h" | |
34 | |
35 #include "public/platform/WebScreenInfo.h" | |
36 | |
37 using namespace blink; | |
38 | |
39 class RenderFullScreenPlaceholder final : public RenderBlockFlow { | |
40 public: | |
41 RenderFullScreenPlaceholder(RenderFullScreen* owner) | |
42 : RenderBlockFlow(0) | |
43 , m_owner(owner) | |
44 { | |
45 setDocumentForAnonymous(&owner->document()); | |
46 } | |
47 private: | |
48 virtual bool isOfType(RenderObjectType type) const override { return type ==
RenderObjectRenderFullScreenPlaceholder || RenderBlockFlow::isOfType(type); } | |
49 virtual void willBeDestroyed() override; | |
50 RenderFullScreen* m_owner; | |
51 }; | |
52 | |
53 void RenderFullScreenPlaceholder::willBeDestroyed() | |
54 { | |
55 m_owner->setPlaceholder(0); | |
56 RenderBlockFlow::willBeDestroyed(); | |
57 } | |
58 | |
59 RenderFullScreen::RenderFullScreen() | |
60 : RenderFlexibleBox(0) | |
61 , m_placeholder(nullptr) | |
62 { | |
63 setReplaced(false); | |
64 } | |
65 | |
66 RenderFullScreen* RenderFullScreen::createAnonymous(Document* document) | |
67 { | |
68 RenderFullScreen* renderer = new RenderFullScreen(); | |
69 renderer->setDocumentForAnonymous(document); | |
70 return renderer; | |
71 } | |
72 | |
73 void RenderFullScreen::trace(Visitor* visitor) | |
74 { | |
75 visitor->trace(m_placeholder); | |
76 RenderFlexibleBox::trace(visitor); | |
77 } | |
78 | |
79 void RenderFullScreen::willBeDestroyed() | |
80 { | |
81 if (m_placeholder) { | |
82 remove(); | |
83 if (!m_placeholder->beingDestroyed()) | |
84 m_placeholder->destroy(); | |
85 ASSERT(!m_placeholder); | |
86 } | |
87 | |
88 // RenderObjects are unretained, so notify the document (which holds a point
er to a RenderFullScreen) | |
89 // if its RenderFullScreen is destroyed. | |
90 Fullscreen& fullscreen = Fullscreen::from(document()); | |
91 if (fullscreen.fullScreenRenderer() == this) | |
92 fullscreen.fullScreenRendererDestroyed(); | |
93 | |
94 RenderFlexibleBox::willBeDestroyed(); | |
95 } | |
96 | |
97 void RenderFullScreen::updateStyle() | |
98 { | |
99 RefPtr<RenderStyle> fullscreenStyle = RenderStyle::createDefaultStyle(); | |
100 | |
101 // Create a stacking context: | |
102 fullscreenStyle->setZIndex(INT_MAX); | |
103 | |
104 fullscreenStyle->setFontDescription(FontDescription()); | |
105 fullscreenStyle->font().update(nullptr); | |
106 | |
107 fullscreenStyle->setDisplay(FLEX); | |
108 fullscreenStyle->setJustifyContent(ContentPositionCenter); | |
109 fullscreenStyle->setAlignItems(ItemPositionCenter); | |
110 fullscreenStyle->setFlexDirection(FlowColumn); | |
111 | |
112 fullscreenStyle->setPosition(FixedPosition); | |
113 fullscreenStyle->setLeft(Length(0, blink::Fixed)); | |
114 fullscreenStyle->setTop(Length(0, blink::Fixed)); | |
115 if (document().page()->settings().pinchVirtualViewportEnabled()) { | |
116 IntSize viewportSize = document().page()->frameHost().pinchViewport().si
ze(); | |
117 fullscreenStyle->setWidth(Length(viewportSize.width(), blink::Fixed)); | |
118 fullscreenStyle->setHeight(Length(viewportSize.height(), blink::Fixed)); | |
119 } else { | |
120 fullscreenStyle->setWidth(Length(100.0, Percent)); | |
121 fullscreenStyle->setHeight(Length(100.0, Percent)); | |
122 } | |
123 | |
124 fullscreenStyle->setBackgroundColor(StyleColor(Color::black)); | |
125 | |
126 setStyle(fullscreenStyle); | |
127 } | |
128 | |
129 RenderObject* RenderFullScreen::wrapRenderer(RenderObject* object, RenderObject*
parent, Document* document) | |
130 { | |
131 // FIXME: We should not modify the structure of the render tree during | |
132 // layout. crbug.com/370459 | |
133 DeprecatedDisableModifyRenderTreeStructureAsserts disabler; | |
134 | |
135 RenderFullScreen* fullscreenRenderer = RenderFullScreen::createAnonymous(doc
ument); | |
136 fullscreenRenderer->updateStyle(); | |
137 if (parent && !parent->isChildAllowed(fullscreenRenderer, fullscreenRenderer
->style())) { | |
138 fullscreenRenderer->destroy(); | |
139 return 0; | |
140 } | |
141 if (object) { | |
142 // |object->parent()| can be null if the object is not yet attached | |
143 // to |parent|. | |
144 if (RenderObject* parent = object->parent()) { | |
145 RenderBlock* containingBlock = object->containingBlock(); | |
146 ASSERT(containingBlock); | |
147 // Since we are moving the |object| to a new parent |fullscreenRende
rer|, | |
148 // the line box tree underneath our |containingBlock| is not longer
valid. | |
149 containingBlock->deleteLineBoxTree(); | |
150 | |
151 parent->addChild(fullscreenRenderer, object); | |
152 object->remove(); | |
153 | |
154 // Always just do a full layout to ensure that line boxes get delete
d properly. | |
155 // Because objects moved from |parent| to |fullscreenRenderer|, we w
ant to | |
156 // make new line boxes instead of leaving the old ones around. | |
157 parent->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); | |
158 containingBlock->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvali
dation(); | |
159 } | |
160 fullscreenRenderer->addChild(object); | |
161 fullscreenRenderer->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalid
ation(); | |
162 } | |
163 | |
164 ASSERT(document); | |
165 Fullscreen::from(*document).setFullScreenRenderer(fullscreenRenderer); | |
166 return fullscreenRenderer; | |
167 } | |
168 | |
169 void RenderFullScreen::unwrapRenderer() | |
170 { | |
171 // FIXME: We should not modify the structure of the render tree during | |
172 // layout. crbug.com/370459 | |
173 DeprecatedDisableModifyRenderTreeStructureAsserts disabler; | |
174 | |
175 if (parent()) { | |
176 for (RenderObject* child = firstChild(); child; child = firstChild()) { | |
177 // We have to clear the override size, because as a flexbox, we | |
178 // may have set one on the child, and we don't want to leave that | |
179 // lying around on the child. | |
180 if (child->isBox()) | |
181 toRenderBox(child)->clearOverrideSize(); | |
182 child->remove(); | |
183 parent()->addChild(child, this); | |
184 parent()->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(
); | |
185 } | |
186 } | |
187 if (placeholder()) | |
188 placeholder()->remove(); | |
189 remove(); | |
190 destroy(); | |
191 } | |
192 | |
193 void RenderFullScreen::setPlaceholder(RenderBlock* placeholder) | |
194 { | |
195 m_placeholder = placeholder; | |
196 } | |
197 | |
198 void RenderFullScreen::createPlaceholder(PassRefPtr<RenderStyle> style, const La
youtRect& frameRect) | |
199 { | |
200 if (style->width().isAuto()) | |
201 style->setWidth(Length(frameRect.width(), Fixed)); | |
202 if (style->height().isAuto()) | |
203 style->setHeight(Length(frameRect.height(), Fixed)); | |
204 | |
205 if (!m_placeholder) { | |
206 m_placeholder = new RenderFullScreenPlaceholder(this); | |
207 m_placeholder->setStyle(style); | |
208 if (parent()) { | |
209 parent()->addChild(m_placeholder, this); | |
210 parent()->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(
); | |
211 } | |
212 } else | |
213 m_placeholder->setStyle(style); | |
214 } | |
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