/platform/external/webkit/WebCore/bindings/js/ScriptCachedFrameData.cpp

https://github.com/aharish/totoro-gb-opensource-update2 · C++ · 109 lines · 61 code · 18 blank · 30 comment · 8 complexity · b4c1892e549e176a3b7dcf44d29928de MD5 · raw file

  1. /*
  2. * Copyright (c) 2008, Google Inc. All rights reserved.
  3. * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions are
  7. * met:
  8. *
  9. * * Redistributions of source code must retain the above copyright
  10. * notice, this list of conditions and the following disclaimer.
  11. * * Redistributions in binary form must reproduce the above
  12. * copyright notice, this list of conditions and the following disclaimer
  13. * in the documentation and/or other materials provided with the
  14. * distribution.
  15. * * Neither the name of Google Inc. nor the names of its
  16. * contributors may be used to endorse or promote products derived from
  17. * this software without specific prior written permission.
  18. *
  19. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30. */
  31. #include "config.h"
  32. #include "ScriptCachedFrameData.h"
  33. #include "Frame.h"
  34. #include "GCController.h"
  35. #include "Page.h"
  36. #include "PageGroup.h"
  37. #include <runtime/JSLock.h>
  38. #include "ScriptController.h"
  39. using namespace JSC;
  40. namespace WebCore {
  41. ScriptCachedFrameData::ScriptCachedFrameData(Frame* frame)
  42. : m_domWindow(0)
  43. {
  44. JSLock lock(SilenceAssertionsOnly);
  45. ScriptController* scriptController = frame->script();
  46. ScriptController::ShellMap& windowShells = scriptController->m_windowShells;
  47. ScriptController::ShellMap::iterator windowShellsEnd = windowShells.end();
  48. for (ScriptController::ShellMap::iterator iter = windowShells.begin(); iter != windowShellsEnd; ++iter) {
  49. JSDOMWindow* window = iter->second->window();
  50. m_windows.add(iter->first.get(), window);
  51. m_domWindow = window->impl();
  52. }
  53. scriptController->attachDebugger(0);
  54. }
  55. DOMWindow* ScriptCachedFrameData::domWindow() const
  56. {
  57. return m_domWindow;
  58. }
  59. ScriptCachedFrameData::~ScriptCachedFrameData()
  60. {
  61. clear();
  62. }
  63. void ScriptCachedFrameData::restore(Frame* frame)
  64. {
  65. JSLock lock(SilenceAssertionsOnly);
  66. ScriptController* scriptController = frame->script();
  67. ScriptController::ShellMap& windowShells = scriptController->m_windowShells;
  68. ScriptController::ShellMap::iterator windowShellsEnd = windowShells.end();
  69. for (ScriptController::ShellMap::iterator iter = windowShells.begin(); iter != windowShellsEnd; ++iter) {
  70. DOMWrapperWorld* world = iter->first.get();
  71. JSDOMWindowShell* windowShell = iter->second.get();
  72. if (JSDOMWindow* window = m_windows.get(world))
  73. windowShell->setWindow(window);
  74. else {
  75. windowShell->setWindow(frame->domWindow());
  76. if (Page* page = frame->page()) {
  77. scriptController->attachDebugger(windowShell, page->debugger());
  78. windowShell->window()->setProfileGroup(page->group().identifier());
  79. }
  80. }
  81. }
  82. }
  83. void ScriptCachedFrameData::clear()
  84. {
  85. if (m_windows.isEmpty())
  86. return;
  87. JSLock lock(SilenceAssertionsOnly);
  88. m_windows.clear();
  89. gcController().garbageCollectSoon();
  90. }
  91. } // namespace WebCore