src/third_party/WebKit/Source/core/page/PageAnimator.cpp

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "config.h"
   6 #include "core/page/PageAnimator.h"
   7
   8 #include "core/animation/DocumentAnimations.h"
   9 #include "core/frame/FrameView.h"
  10 #include "core/frame/LocalFrame.h"
  11 #include "core/page/Chrome.h"
  12 #include "core/page/ChromeClient.h"
  13 #include "core/page/Page.h"
  14 #include "core/svg/SVGDocumentExtensions.h"
  15 #include "platform/Logging.h"
  16
  17 namespace blink {
  18
  19 PageAnimator::PageAnimator(Page& page)
  20     : m_page(page)
  21     , m_animationFramePending(false)
  22     , m_servicingAnimations(false)
  23     , m_updatingLayoutAndStyleForPainting(false)
  24 {
  25 }
  26
  27 PassRefPtrWillBeRawPtr<PageAnimator> PageAnimator::create(Page& page)
  28 {
  29     return adoptRefWillBeNoop(new PageAnimator(page));
  30 }
  31
  32 void PageAnimator::trace(Visitor* visitor)
  33 {
  34     visitor->trace(m_page);
  35 }
  36
  37 void PageAnimator::serviceScriptedAnimations(double monotonicAnimationStartTime)
  38 {
  39     RefPtrWillBeRawPtr<PageAnimator> protector(this);
  40     m_animationFramePending = false;
  41     TemporaryChange<bool> servicing(m_servicingAnimations, true);
  42
  43     WillBeHeapVector<RefPtrWillBeMember<Document>> documents;
  44     for (Frame* frame = m_page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
  45         if (frame->isLocalFrame())
  46             documents.append(toLocalFrame(frame)->document());
  47     }
  48
  49     for (size_t i = 0; i < documents.size(); ++i) {
  50         if (documents[i]->frame()) {
  51             documents[i]->view()->serviceScrollAnimations(monotonicAnimationStartTime);
  52
  53             if (const FrameView::ScrollableAreaSet* scrollableAreas = documents[i]->view()->scrollableAreas()) {
  54                 for (ScrollableArea* scrollableArea : *scrollableAreas)
  55                     scrollableArea->serviceScrollAnimations(monotonicAnimationStartTime);
  56             }
  57         }
  58     }
  59
  60     for (size_t i = 0; i < documents.size(); ++i) {
  61         DocumentAnimations::updateAnimationTimingForAnimationFrame(*documents[i], monotonicAnimationStartTime);
  62         SVGDocumentExtensions::serviceOnAnimationFrame(*documents[i], monotonicAnimationStartTime);
  63     }
  64
  65     for (size_t i = 0; i < documents.size(); ++i)
  66         documents[i]->serviceScriptedAnimations(monotonicAnimationStartTime);
  67 }
  68
  69 void PageAnimator::scheduleVisualUpdate()
  70 {
  71     // FIXME: also include m_animationFramePending here. It is currently not there due to crbug.com/353756.
  72     if (m_servicingAnimations || m_updatingLayoutAndStyleForPainting)
  73         return;
  74     m_page->chrome().scheduleAnimation();
  75 }
  76
  77 void PageAnimator::updateLayoutAndStyleForPainting(LocalFrame* rootFrame)
  78 {
  79     RefPtrWillBeRawPtr<FrameView> view = rootFrame->view();
  80
  81     TemporaryChange<bool> servicing(m_updatingLayoutAndStyleForPainting, true);
  82
  83     // In order for our child HWNDs (NativeWindowWidgets) to update properly,
  84     // they need to be told that we are updating the screen. The problem is that
  85     // the native widgets need to recalculate their clip region and not overlap
  86     // any of our non-native widgets. To force the resizing, call
  87     // setFrameRect(). This will be a quick operation for most frames, but the
  88     // NativeWindowWidgets will update a proper clipping region.
  89     view->setFrameRect(view->frameRect());
  90
  91     // setFrameRect may have the side-effect of causing existing page layout to
  92     // be invalidated, so layout needs to be called last.
  93     view->updateLayoutAndStyleForPainting();
  94 }
  95
  96 }