Intersection Observer support for OOPIF

third_party/WebKit/Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 34 matching lines @@
 #include "core/editing/markers/DocumentMarkerController.h"
 #include "core/events/ErrorEvent.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/frame/BrowserControls.h"
 #include "core/frame/EventHandlerRegistry.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Location.h"
 #include "core/frame/PageScaleConstraintsSet.h"
 #include "core/frame/PerformanceMonitor.h"
+#include "core/frame/RemoteFrame.h"
+#include "core/frame/RemoteFrameView.h"
 #include "core/frame/Settings.h"
 #include "core/frame/VisualViewport.h"
 #include "core/html/HTMLFrameElement.h"
 #include "core/html/HTMLPlugInElement.h"
 #include "core/html/TextControlElement.h"
 #include "core/html/parser/TextResourceDecoder.h"
 #include "core/input/EventHandler.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/InspectorTraceEvents.h"
 #include "core/layout/LayoutAnalyzer.h"
@@ skipping 122 matching lines @@
       m_hiddenForThrottling(false),
       m_subtreeThrottled(false),
       m_lifecycleUpdatesThrottled(false),
       m_needsPaintPropertyUpdate(true),
       m_currentUpdateLifecyclePhasesTargetState(
           DocumentLifecycle::Uninitialized),
       m_scrollAnchor(this),
       m_scrollbarManager(*this),
       m_needsScrollbarsUpdate(false),
       m_suppressAdjustViewSize(false),
-      m_allowsLayoutInvalidationAfterLayoutClean(true) {
+      m_allowsLayoutInvalidationAfterLayoutClean(true),
+      m_remoteViewportIntersection(0, 0, 0, 0) {
   init();
 }
 
 FrameView* FrameView::create(LocalFrame& frame) {
   FrameView* view = new FrameView(frame);
   view->show();
   return view;
 }
 
 FrameView* FrameView::create(LocalFrame& frame, const IntSize& initialSize) {
@@ skipping 4371 matching lines @@
 int FrameView::initialViewportWidth() const {
   DCHECK(m_frame->isMainFrame());
   return m_initialViewportSize.width();
 }
 
 int FrameView::initialViewportHeight() const {
   DCHECK(m_frame->isMainFrame());
   return m_initialViewportSize.height();
 }
 
+void FrameView::setViewportIntersectionFromParent(
+    const IntRect& viewportIntersection) {
+  if (m_remoteViewportIntersection != viewportIntersection) {
+    m_remoteViewportIntersection = viewportIntersection;
+    scheduleAnimation();
+  }
+}
+
+IntRect FrameView::remoteViewportIntersection() {
+  IntRect intersection(m_remoteViewportIntersection);
+  intersection.move(scrollOffsetInt());
+  return intersection;
+}
+
 }  // namespace blink