third_party/WebKit/Source/web/OpenedFrameTracker.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 "web/OpenedFrameTracker.h"
   7
   8 #include "platform/heap/Handle.h"
   9 #include "public/web/WebFrame.h"
  10
  11 namespace blink {
  12
  13 OpenedFrameTracker::OpenedFrameTracker()
  14 {
  15 }
  16
  17 OpenedFrameTracker::~OpenedFrameTracker()
  18 {
  19 #if !ENABLE(OILPAN)
  20     // Oilpan takes care of clearing weak m_opener fields during GC.
  21     updateOpener(0);
  22 #endif
  23 }
  24
  25 bool OpenedFrameTracker::isEmpty() const
  26 {
  27     return m_openedFrames.isEmpty();
  28 }
  29
  30 void OpenedFrameTracker::add(WebFrame* frame)
  31 {
  32     m_openedFrames.add(frame);
  33 }
  34
  35 void OpenedFrameTracker::remove(WebFrame* frame)
  36 {
  37     m_openedFrames.remove(frame);
  38 }
  39
  40 void OpenedFrameTracker::updateOpener(WebFrame* frame)
  41 {
  42     HashSet<WebFrame*>::iterator end = m_openedFrames.end();
  43     for (HashSet<WebFrame*>::iterator it = m_openedFrames.begin(); it != end; ++it)
  44         (*it)->m_opener = frame;
  45 }
  46
  47 template <typename VisitorDispatcher>
  48 ALWAYS_INLINE void OpenedFrameTracker::traceFramesImpl(VisitorDispatcher visitor)
  49 {
  50 #if ENABLE(OILPAN)
  51     HashSet<WebFrame*>::iterator end = m_openedFrames.end();
  52     for (HashSet<WebFrame*>::iterator it = m_openedFrames.begin(); it != end; ++it)
  53         WebFrame::traceFrame(visitor, *it);
  54 #endif
  55 }
  56
  57 void OpenedFrameTracker::traceFrames(Visitor* visitor) { traceFramesImpl(visitor); }
  58 void OpenedFrameTracker::traceFrames(InlinedGlobalMarkingVisitor visitor) { traceFramesImpl(visitor); }
  59
  60 } // namespace blink