void ScriptController::clearWindowShell(DOMWindow* newDOMWindow, bool goingIntoPageCache)
{
if (m_windowShells.isEmpty())
return;
JSLockHolder lock(JSDOMWindowBase::commonVM());
Vector<JSC::Strong<JSDOMWindowShell>> windowShells = this->windowShells();
for (size_t i = 0; i < windowShells.size(); ++i) {
JSDOMWindowShell* windowShell = windowShells[i].get();
if (&windowShell->window()->wrapped() == newDOMWindow)
continue;
// Clear the debugger and console from the current window before setting the new window.
attachDebugger(windowShell, nullptr);
windowShell->window()->setConsoleClient(nullptr);
// FIXME: We should clear console profiles for each frame as soon as the frame is destroyed.
// Instead of clearing all of them when the main frame is destroyed.
if (m_frame.isMainFrame()) {
if (Page* page = m_frame.page())
page->console().clearProfiles();
}
windowShell->window()->willRemoveFromWindowShell();
windowShell->setWindow(newDOMWindow);
// An m_cacheableBindingRootObject persists between page navigations
// so needs to know about the new JSDOMWindow.
if (m_cacheableBindingRootObject)
m_cacheableBindingRootObject->updateGlobalObject(windowShell->window());
if (Page* page = m_frame.page()) {
attachDebugger(windowShell, page->debugger());
windowShell->window()->setProfileGroup(page->group().identifier());
windowShell->window()->setConsoleClient(&page->console());
}
}
// It's likely that resetting our windows created a lot of garbage, unless
// it went in a back/forward cache.
if (!goingIntoPageCache)
collectGarbageAfterWindowShellDestruction();
}
ScriptController::~ScriptController()
{
disconnectPlatformScriptObjects();
if (m_cacheableBindingRootObject) {
JSLockHolder lock(JSDOMWindowBase::commonVM());
m_cacheableBindingRootObject->invalidate();
m_cacheableBindingRootObject = nullptr;
}
// It's likely that destroying m_windowShells will create a lot of garbage.
if (!m_windowShells.isEmpty()) {
while (!m_windowShells.isEmpty()) {
ShellMap::iterator iter = m_windowShells.begin();
iter->value->window()->setConsoleClient(nullptr);
destroyWindowShell(*iter->key);
}
collectGarbageAfterWindowShellDestruction();
}
}
