| /* |
| * Copyright (C) 2010 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "core/rendering/RenderFullScreen.h" |
| |
| #include "core/dom/FullscreenElementStack.h" |
| #include "core/rendering/RenderBlockFlow.h" |
| |
| using namespace blink; |
| |
| class RenderFullScreenPlaceholder FINAL : public RenderBlockFlow { |
| public: |
| RenderFullScreenPlaceholder(RenderFullScreen* owner) |
| : RenderBlockFlow(0) |
| , m_owner(owner) |
| { |
| setDocumentForAnonymous(&owner->document()); |
| } |
| private: |
| virtual bool isRenderFullScreenPlaceholder() const OVERRIDE { return true; } |
| virtual void willBeDestroyed() OVERRIDE; |
| RenderFullScreen* m_owner; |
| }; |
| |
| void RenderFullScreenPlaceholder::willBeDestroyed() |
| { |
| m_owner->setPlaceholder(0); |
| RenderBlock::willBeDestroyed(); |
| } |
| |
| RenderFullScreen::RenderFullScreen() |
| : RenderFlexibleBox(0) |
| , m_placeholder(nullptr) |
| { |
| setReplaced(false); |
| } |
| |
| RenderFullScreen* RenderFullScreen::createAnonymous(Document* document) |
| { |
| RenderFullScreen* renderer = new RenderFullScreen(); |
| renderer->setDocumentForAnonymous(document); |
| return renderer; |
| } |
| |
| void RenderFullScreen::trace(Visitor* visitor) |
| { |
| visitor->trace(m_placeholder); |
| RenderFlexibleBox::trace(visitor); |
| } |
| |
| void RenderFullScreen::willBeDestroyed() |
| { |
| if (m_placeholder) { |
| remove(); |
| if (!m_placeholder->beingDestroyed()) |
| m_placeholder->destroy(); |
| ASSERT(!m_placeholder); |
| } |
| |
| // RenderObjects are unretained, so notify the document (which holds a pointer to a RenderFullScreen) |
| // if its RenderFullScreen is destroyed. |
| FullscreenElementStack& fullscreen = FullscreenElementStack::from(document()); |
| if (fullscreen.fullScreenRenderer() == this) |
| fullscreen.fullScreenRendererDestroyed(); |
| |
| RenderFlexibleBox::willBeDestroyed(); |
| } |
| |
| static PassRefPtr<RenderStyle> createFullScreenStyle() |
| { |
| RefPtr<RenderStyle> fullscreenStyle = RenderStyle::createDefaultStyle(); |
| |
| // Create a stacking context: |
| fullscreenStyle->setZIndex(INT_MAX); |
| |
| fullscreenStyle->setFontDescription(FontDescription()); |
| fullscreenStyle->font().update(nullptr); |
| |
| fullscreenStyle->setDisplay(FLEX); |
| fullscreenStyle->setJustifyContent(JustifyCenter); |
| fullscreenStyle->setAlignItems(ItemPositionCenter); |
| fullscreenStyle->setFlexDirection(FlowColumn); |
| |
| fullscreenStyle->setPosition(FixedPosition); |
| fullscreenStyle->setWidth(Length(100.0, Percent)); |
| fullscreenStyle->setHeight(Length(100.0, Percent)); |
| fullscreenStyle->setLeft(Length(0, blink::Fixed)); |
| fullscreenStyle->setTop(Length(0, blink::Fixed)); |
| |
| fullscreenStyle->setBackgroundColor(StyleColor(Color::black)); |
| |
| return fullscreenStyle.release(); |
| } |
| |
| RenderObject* RenderFullScreen::wrapRenderer(RenderObject* object, RenderObject* parent, Document* document) |
| { |
| // FIXME: We should not modify the structure of the render tree during |
| // layout. crbug.com/370459 |
| DeprecatedDisableModifyRenderTreeStructureAsserts disabler; |
| |
| RenderFullScreen* fullscreenRenderer = RenderFullScreen::createAnonymous(document); |
| fullscreenRenderer->setStyle(createFullScreenStyle()); |
| if (parent && !parent->isChildAllowed(fullscreenRenderer, fullscreenRenderer->style())) { |
| fullscreenRenderer->destroy(); |
| return 0; |
| } |
| if (object) { |
| // |object->parent()| can be null if the object is not yet attached |
| // to |parent|. |
| if (RenderObject* parent = object->parent()) { |
| RenderBlock* containingBlock = object->containingBlock(); |
| ASSERT(containingBlock); |
| // Since we are moving the |object| to a new parent |fullscreenRenderer|, |
| // the line box tree underneath our |containingBlock| is not longer valid. |
| containingBlock->deleteLineBoxTree(); |
| |
| parent->addChild(fullscreenRenderer, object); |
| object->remove(); |
| |
| // Always just do a full layout to ensure that line boxes get deleted properly. |
| // Because objects moved from |parent| to |fullscreenRenderer|, we want to |
| // make new line boxes instead of leaving the old ones around. |
| parent->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| containingBlock->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| } |
| fullscreenRenderer->addChild(object); |
| fullscreenRenderer->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| } |
| |
| ASSERT(document); |
| FullscreenElementStack::from(*document).setFullScreenRenderer(fullscreenRenderer); |
| return fullscreenRenderer; |
| } |
| |
| void RenderFullScreen::unwrapRenderer() |
| { |
| // FIXME: We should not modify the structure of the render tree during |
| // layout. crbug.com/370459 |
| DeprecatedDisableModifyRenderTreeStructureAsserts disabler; |
| |
| if (parent()) { |
| for (RenderObject* child = firstChild(); child; child = firstChild()) { |
| // We have to clear the override size, because as a flexbox, we |
| // may have set one on the child, and we don't want to leave that |
| // lying around on the child. |
| if (child->isBox()) |
| toRenderBox(child)->clearOverrideSize(); |
| child->remove(); |
| parent()->addChild(child, this); |
| parent()->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| } |
| } |
| if (placeholder()) |
| placeholder()->remove(); |
| remove(); |
| destroy(); |
| } |
| |
| void RenderFullScreen::setPlaceholder(RenderBlock* placeholder) |
| { |
| m_placeholder = placeholder; |
| } |
| |
| void RenderFullScreen::createPlaceholder(PassRefPtr<RenderStyle> style, const LayoutRect& frameRect) |
| { |
| if (style->width().isAuto()) |
| style->setWidth(Length(frameRect.width(), Fixed)); |
| if (style->height().isAuto()) |
| style->setHeight(Length(frameRect.height(), Fixed)); |
| |
| if (!m_placeholder) { |
| m_placeholder = new RenderFullScreenPlaceholder(this); |
| m_placeholder->setStyle(style); |
| if (parent()) { |
| parent()->addChild(m_placeholder, this); |
| parent()->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(); |
| } |
| } else |
| m_placeholder->setStyle(style); |
| } |