ScriptCachedFrameData.cpp [plain text]
#include "config.h"
#include "ScriptCachedFrameData.h"
#include "CommonVM.h"
#include "Document.h"
#include "Frame.h"
#include "GCController.h"
#include "Page.h"
#include "PageConsoleClient.h"
#include "PageGroup.h"
#include "ScriptController.h"
#include <JavaScriptCore/JSLock.h>
#include <JavaScriptCore/StrongInlines.h>
#include <JavaScriptCore/WeakGCMapInlines.h>
namespace WebCore {
using namespace JSC;
ScriptCachedFrameData::ScriptCachedFrameData(Frame& frame)
{
JSLockHolder lock(commonVM());
for (auto windowProxy : frame.windowProxy().jsWindowProxiesAsVector()) {
auto* window = jsCast<JSDOMWindow*>(windowProxy->window());
m_windows.add(&windowProxy->world(), Strong<JSDOMWindow>(window->vm(), window));
window->setConsoleClient(nullptr);
}
frame.windowProxy().attachDebugger(nullptr);
}
ScriptCachedFrameData::~ScriptCachedFrameData()
{
clear();
}
void ScriptCachedFrameData::restore(Frame& frame)
{
JSLockHolder lock(commonVM());
Page* page = frame.page();
for (auto windowProxy : frame.windowProxy().jsWindowProxiesAsVector()) {
auto* world = &windowProxy->world();
if (auto* window = m_windows.get(world).get())
windowProxy->setWindow(window->vm(), *window);
else {
ASSERT(frame.document()->domWindow());
auto& domWindow = *frame.document()->domWindow();
if (&windowProxy->wrapped() == &domWindow)
continue;
windowProxy->setWindow(domWindow);
if (page) {
windowProxy->attachDebugger(page->debugger());
windowProxy->window()->setProfileGroup(page->group().identifier());
}
}
if (page)
windowProxy->window()->setConsoleClient(&page->console());
}
}
void ScriptCachedFrameData::clear()
{
if (m_windows.isEmpty())
return;
JSLockHolder lock(commonVM());
m_windows.clear();
GCController::singleton().garbageCollectSoon();
}
}