| /* |
| * 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/graphics/ImageObserver.h" |
| #include "wtf/CurrentTime.h" |
| |
| namespace WebCore { |
| |
| 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::invalidateContentsAndRootView(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>*) |
| { |
| // In principle, we should call requestAnimationFrame callbacks here, but |
| // we know there aren't any because script is forbidden inside SVGImages. |
| if (m_image) { |
| m_image->frameView()->page()->animator().serviceScriptedAnimations(monotonicallyIncreasingTime()); |
| m_image->frameView()->updateLayoutAndStyleForPainting(); |
| } |
| } |
| |
| } |