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/*
* Copyright (C) 2012 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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 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/svg/graphics/SVGImageChromeClient.h"
#include "core/frame/FrameView.h"
#include "core/svg/graphics/SVGImage.h"
#include "platform/ScriptForbiddenScope.h"
#include "platform/graphics/ImageObserver.h"
#include "wtf/CurrentTime.h"
namespace blink {
static const double animationFrameDelay = 0.025;
SVGImageChromeClient::SVGImageChromeClient(SVGImage* image)
: m_image(image)
, m_animationTimer(this, &SVGImageChromeClient::animationTimerFired)
{
}
bool SVGImageChromeClient::isSVGImageChromeClient() const
{
return true;
}
void SVGImageChromeClient::chromeDestroyed()
{
m_image = 0;
}
void SVGImageChromeClient::invalidateRect(const IntRect& r)
{
// If m_image->m_page is null, we're being destructed, don't fire changedInRect() in that case.
if (m_image && m_image->imageObserver() && m_image->m_page)
m_image->imageObserver()->changedInRect(m_image, r);
}
void SVGImageChromeClient::scheduleAnimation()
{
// Because a single SVGImage can be shared by multiple pages, we can't key
// our svg image layout on the page's real animation frame. Therefore, we
// run this fake animation timer to trigger layout in SVGImages. The name,
// "animationTimer", is to match the new requestAnimationFrame-based layout
// approach.
if (m_animationTimer.isActive())
return;
// Schedule the 'animation' ASAP if the image does not contain any
// animations, but prefer a fixed, jittery, frame-delay if there're any
// animations. Checking for pending/active animations could be more
// stringent.
double fireTime = m_image->hasAnimations() ? animationFrameDelay : 0;
m_animationTimer.startOneShot(fireTime, FROM_HERE);
}
void SVGImageChromeClient::animationTimerFired(Timer<SVGImageChromeClient>*)
{
if (!m_image)
return;
// serviceScriptedAnimations runs requestAnimationFrame callbacks, but SVG
// images can't have any so we assert there's no script.
ScriptForbiddenScope forbidScript;
m_image->frameView()->page()->animator().serviceScriptedAnimations(monotonicallyIncreasingTime());
m_image->frameView()->updateLayoutAndStyleForPainting();
}
}
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