RenderFullScreen.cpp [plain text]
#include "config.h"
#if ENABLE(FULLSCREEN_API)
#include "RenderFullScreen.h"
#include "RenderBlockFlow.h"
#include "RenderLayer.h"
#include "RenderLayerCompositor.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(RenderFullScreen);
class RenderFullScreenPlaceholder final : public RenderBlockFlow {
WTF_MAKE_ISO_ALLOCATED(RenderFullScreenPlaceholder);
public:
RenderFullScreenPlaceholder(Document& document, RenderStyle&& style)
: RenderBlockFlow(document, WTFMove(style))
{
}
private:
bool isRenderFullScreenPlaceholder() const override { return true; }
};
WTF_MAKE_ISO_ALLOCATED_IMPL(RenderFullScreenPlaceholder);
RenderFullScreen::RenderFullScreen(Document& document, RenderStyle&& style)
: RenderFlexibleBox(document, WTFMove(style))
{
setReplaced(false);
}
void RenderFullScreen::willBeDestroyed()
{
if (m_placeholder) {
m_placeholder->removeFromParentAndDestroy();
ASSERT(!m_placeholder);
}
RenderFlexibleBox::willBeDestroyed();
}
static RenderStyle createFullScreenStyle()
{
auto fullscreenStyle = RenderStyle::create();
fullscreenStyle.setZIndex(INT_MAX);
fullscreenStyle.setFontDescription({ });
fullscreenStyle.fontCascade().update(nullptr);
fullscreenStyle.setDisplay(FLEX);
fullscreenStyle.setJustifyContentPosition(ContentPositionCenter);
fullscreenStyle.setAlignItemsPosition(ItemPositionCenter);
fullscreenStyle.setFlexDirection(FlowColumn);
fullscreenStyle.setPosition(FixedPosition);
fullscreenStyle.setWidth(Length(100.0, Percent));
fullscreenStyle.setHeight(Length(100.0, Percent));
fullscreenStyle.setLeft(Length(0, WebCore::Fixed));
fullscreenStyle.setTop(Length(0, WebCore::Fixed));
fullscreenStyle.setBackgroundColor(Color::black);
return fullscreenStyle;
}
RenderPtr<RenderFullScreen> RenderFullScreen::wrapNewRenderer(RenderPtr<RenderElement> renderer, RenderElement& parent, Document& document)
{
auto newFullscreenRenderer = createRenderer<RenderFullScreen>(document, createFullScreenStyle());
newFullscreenRenderer->initializeStyle();
auto& fullscreenRenderer = *newFullscreenRenderer;
if (!parent.isChildAllowed(fullscreenRenderer, fullscreenRenderer.style()))
return nullptr;
fullscreenRenderer.addChild(WTFMove(renderer));
fullscreenRenderer.setNeedsLayoutAndPrefWidthsRecalc();
document.setFullScreenRenderer(&fullscreenRenderer);
return newFullscreenRenderer;
}
void RenderFullScreen::wrapExistingRenderer(RenderElement& renderer, Document& document)
{
auto newFullscreenRenderer = createRenderer<RenderFullScreen>(document, createFullScreenStyle());
newFullscreenRenderer->initializeStyle();
auto& fullscreenRenderer = *newFullscreenRenderer;
auto& parent = *renderer.parent();
if (!parent.isChildAllowed(fullscreenRenderer, fullscreenRenderer.style()))
return;
RenderBlock* containingBlock = renderer.containingBlock();
ASSERT(containingBlock);
containingBlock->deleteLines();
parent.addChild(WTFMove(newFullscreenRenderer), &renderer);
auto toMove = parent.takeChild(renderer);
parent.setNeedsLayoutAndPrefWidthsRecalc();
containingBlock->setNeedsLayoutAndPrefWidthsRecalc();
fullscreenRenderer.addChild(WTFMove(toMove));
fullscreenRenderer.setNeedsLayoutAndPrefWidthsRecalc();
document.setFullScreenRenderer(&fullscreenRenderer);
}
void RenderFullScreen::unwrapRenderer(bool& requiresRenderTreeRebuild)
{
requiresRenderTreeRebuild = false;
if (parent()) {
auto* child = firstChild();
if (child != lastChild())
requiresRenderTreeRebuild = true;
else if (child && child->isAnonymousBlock()) {
auto& anonymousBlock = downcast<RenderBlock>(*child);
if (anonymousBlock.firstChild() != anonymousBlock.lastChild())
requiresRenderTreeRebuild = true;
}
while ((child = firstChild())) {
if (child->isAnonymousBlock() && !requiresRenderTreeRebuild) {
if (auto* nonAnonymousChild = downcast<RenderBlock>(*child).firstChild())
child = nonAnonymousChild;
else {
child->removeFromParentAndDestroy();
continue;
}
}
if (is<RenderBox>(*child))
downcast<RenderBox>(*child).clearOverrideSize();
auto childToMove = child->parent()->takeChild(*child);
parent()->addChild(WTFMove(childToMove), this);
parent()->setNeedsLayoutAndPrefWidthsRecalc();
}
}
if (placeholder())
placeholder()->removeFromParentAndDestroy();
ASSERT(!placeholder());
removeFromParentAndDestroy();
}
void RenderFullScreen::createPlaceholder(std::unique_ptr<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->setStyle(WTFMove(*style));
return;
}
if (!parent())
return;
auto newPlaceholder = createRenderer<RenderFullScreenPlaceholder>(document(), WTFMove(*style));
newPlaceholder->initializeStyle();
m_placeholder = makeWeakPtr(*newPlaceholder);
parent()->addChild(WTFMove(newPlaceholder), this);
parent()->setNeedsLayoutAndPrefWidthsRecalc();
}
}
#endif