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-rw-r--r--Source/WebCore/page/PageOverlay.cpp292
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diff --git a/Source/WebCore/page/PageOverlay.cpp b/Source/WebCore/page/PageOverlay.cpp
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--- a/Source/WebCore/page/PageOverlay.cpp
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-/*
- * 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 "PageOverlay.h"
-
-#include "FrameView.h"
-#include "GraphicsContext.h"
-#include "MainFrame.h"
-#include "Page.h"
-#include "PageOverlayController.h"
-#include "PlatformMouseEvent.h"
-#include "ScrollbarTheme.h"
-#include <wtf/CurrentTime.h>
-
-namespace WebCore {
-
-static const double fadeAnimationDuration = 0.2;
-static const double fadeAnimationFrameRate = 30;
-
-static PageOverlay::PageOverlayID generatePageOverlayID()
-{
- static PageOverlay::PageOverlayID pageOverlayID;
- return ++pageOverlayID;
-}
-
-Ref<PageOverlay> PageOverlay::create(Client& client, OverlayType overlayType)
-{
- return adoptRef(*new PageOverlay(client, overlayType));
-}
-
-PageOverlay::PageOverlay(Client& client, OverlayType overlayType)
- : m_client(client)
- , m_fadeAnimationTimer(*this, &PageOverlay::fadeAnimationTimerFired)
- , m_fadeAnimationDuration(fadeAnimationDuration)
- , m_needsSynchronousScrolling(overlayType == OverlayType::View)
- , m_overlayType(overlayType)
- , m_pageOverlayID(generatePageOverlayID())
-{
-}
-
-PageOverlay::~PageOverlay()
-{
-}
-
-PageOverlayController* PageOverlay::controller() const
-{
- if (!m_page)
- return nullptr;
- return &m_page->mainFrame().pageOverlayController();
-}
-
-IntRect PageOverlay::bounds() const
-{
- if (!m_overrideFrame.isEmpty())
- return { { }, m_overrideFrame.size() };
-
- FrameView* frameView = m_page->mainFrame().view();
-
- if (!frameView)
- return IntRect();
-
- switch (m_overlayType) {
- case OverlayType::View: {
- int width = frameView->width();
- int height = frameView->height();
-
- if (!ScrollbarTheme::theme().usesOverlayScrollbars()) {
- if (frameView->verticalScrollbar())
- width -= frameView->verticalScrollbar()->width();
- if (frameView->horizontalScrollbar())
- height -= frameView->horizontalScrollbar()->height();
- }
- return IntRect(0, 0, width, height);
- }
- case OverlayType::Document:
- return IntRect(IntPoint(), frameView->contentsSize());
- }
-
- ASSERT_NOT_REACHED();
- return IntRect(IntPoint(), frameView->contentsSize());
-}
-
-IntRect PageOverlay::frame() const
-{
- if (!m_overrideFrame.isEmpty())
- return m_overrideFrame;
-
- return bounds();
-}
-
-void PageOverlay::setFrame(IntRect frame)
-{
- if (m_overrideFrame == frame)
- return;
-
- m_overrideFrame = frame;
-
- if (auto pageOverlayController = controller())
- pageOverlayController->didChangeOverlayFrame(*this);
-}
-
-IntSize PageOverlay::viewToOverlayOffset() const
-{
- switch (m_overlayType) {
- case OverlayType::View:
- return IntSize();
-
- case OverlayType::Document: {
- FrameView* frameView = m_page->mainFrame().view();
- return frameView ? toIntSize(frameView->viewToContents(IntPoint())) : IntSize();
- }
- }
- return IntSize();
-}
-
-void PageOverlay::setBackgroundColor(RGBA32 backgroundColor)
-{
- if (m_backgroundColor == backgroundColor)
- return;
-
- m_backgroundColor = backgroundColor;
-
- if (auto pageOverlayController = controller())
- pageOverlayController->didChangeOverlayBackgroundColor(*this);
-}
-
-void PageOverlay::setPage(Page* page)
-{
- m_client.willMoveToPage(*this, page);
- m_page = page;
- m_client.didMoveToPage(*this, page);
-
- m_fadeAnimationTimer.stop();
-}
-
-void PageOverlay::setNeedsDisplay(const IntRect& dirtyRect)
-{
- if (auto pageOverlayController = controller()) {
- if (m_fadeAnimationType != FadeAnimationType::NoAnimation)
- pageOverlayController->setPageOverlayOpacity(*this, m_fractionFadedIn);
- pageOverlayController->setPageOverlayNeedsDisplay(*this, dirtyRect);
- }
-}
-
-void PageOverlay::setNeedsDisplay()
-{
- setNeedsDisplay(bounds());
-}
-
-void PageOverlay::drawRect(GraphicsContext& graphicsContext, const IntRect& dirtyRect)
-{
- // If the dirty rect is outside the bounds, ignore it.
- IntRect paintRect = intersection(dirtyRect, bounds());
- if (paintRect.isEmpty())
- return;
-
- GraphicsContextStateSaver stateSaver(graphicsContext);
-
- if (m_overlayType == PageOverlay::OverlayType::Document) {
- if (FrameView* frameView = m_page->mainFrame().view()) {
- auto offset = frameView->scrollOrigin();
- graphicsContext.translate(toFloatSize(offset));
- paintRect.moveBy(-offset);
- }
- }
-
- m_client.drawRect(*this, graphicsContext, paintRect);
-}
-
-bool PageOverlay::mouseEvent(const PlatformMouseEvent& mouseEvent)
-{
- IntPoint mousePositionInOverlayCoordinates(mouseEvent.position());
-
- if (m_overlayType == PageOverlay::OverlayType::Document)
- mousePositionInOverlayCoordinates = m_page->mainFrame().view()->windowToContents(mousePositionInOverlayCoordinates);
- mousePositionInOverlayCoordinates.moveBy(-frame().location());
-
- // Ignore events outside the bounds.
- if (m_shouldIgnoreMouseEventsOutsideBounds && !bounds().contains(mousePositionInOverlayCoordinates))
- return false;
-
- return m_client.mouseEvent(*this, mouseEvent);
-}
-
-void PageOverlay::didScrollFrame(Frame& frame)
-{
- m_client.didScrollFrame(*this, frame);
-}
-
-bool PageOverlay::copyAccessibilityAttributeStringValueForPoint(String attribute, FloatPoint parameter, String& value)
-{
- return m_client.copyAccessibilityAttributeStringValueForPoint(*this, attribute, parameter, value);
-}
-
-bool PageOverlay::copyAccessibilityAttributeBoolValueForPoint(String attribute, FloatPoint parameter, bool& value)
-{
- return m_client.copyAccessibilityAttributeBoolValueForPoint(*this, attribute, parameter, value);
-}
-
-Vector<String> PageOverlay::copyAccessibilityAttributeNames(bool parameterizedNames)
-{
- return m_client.copyAccessibilityAttributeNames(*this, parameterizedNames);
-}
-
-void PageOverlay::startFadeInAnimation()
-{
- m_fractionFadedIn = 0;
- m_fadeAnimationType = FadeInAnimation;
-
- startFadeAnimation();
-}
-
-void PageOverlay::startFadeOutAnimation()
-{
- m_fractionFadedIn = 1;
- m_fadeAnimationType = FadeOutAnimation;
-
- startFadeAnimation();
-}
-
-void PageOverlay::stopFadeOutAnimation()
-{
- m_fractionFadedIn = 1.0;
- m_fadeAnimationTimer.stop();
-}
-
-void PageOverlay::startFadeAnimation()
-{
- m_fadeAnimationStartTime = currentTime();
- m_fadeAnimationTimer.startRepeating(1 / fadeAnimationFrameRate);
-}
-
-void PageOverlay::fadeAnimationTimerFired()
-{
- float animationProgress = (currentTime() - m_fadeAnimationStartTime) / m_fadeAnimationDuration;
-
- if (animationProgress >= 1.0)
- animationProgress = 1.0;
-
- double sine = sin(piOverTwoFloat * animationProgress);
- float fadeAnimationValue = sine * sine;
-
- m_fractionFadedIn = (m_fadeAnimationType == FadeInAnimation) ? fadeAnimationValue : 1 - fadeAnimationValue;
- controller()->setPageOverlayOpacity(*this, m_fractionFadedIn);
-
- if (animationProgress == 1.0) {
- m_fadeAnimationTimer.stop();
-
- bool wasFadingOut = m_fadeAnimationType == FadeOutAnimation;
- m_fadeAnimationType = NoAnimation;
-
- // If this was a fade out, uninstall the page overlay.
- if (wasFadingOut)
- controller()->uninstallPageOverlay(this, PageOverlay::FadeMode::DoNotFade);
- }
-}
-
-void PageOverlay::clear()
-{
- if (auto pageOverlayController = controller())
- pageOverlayController->clearPageOverlay(*this);
-}
-
-GraphicsLayer& PageOverlay::layer()
-{
- return controller()->layerForOverlay(*this);
-}
-
-} // namespace WebKit