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 <heap/StrongInlines.h>
#include <runtime/JSLock.h>
#include <runtime/WeakGCMapInlines.h>
using namespace JSC;
namespace WebCore {
ScriptCachedFrameData::ScriptCachedFrameData(Frame& frame)
{
JSLockHolder lock(commonVM());
ScriptController& scriptController = frame.script();
Vector<JSC::Strong<JSDOMWindowShell>> windowShells = scriptController.windowShells();
for (size_t i = 0; i < windowShells.size(); ++i) {
JSDOMWindowShell* windowShell = windowShells[i].get();
JSDOMWindow* window = windowShell->window();
m_windows.add(&windowShell->world(), Strong<JSDOMWindow>(window->vm(), window));
window->setConsoleClient(nullptr);
}
scriptController.attachDebugger(nullptr);
}
ScriptCachedFrameData::~ScriptCachedFrameData()
{
clear();
}
void ScriptCachedFrameData::restore(Frame& frame)
{
JSLockHolder lock(commonVM());
Page* page = frame.page();
ScriptController& scriptController = frame.script();
Vector<JSC::Strong<JSDOMWindowShell>> windowShells = scriptController.windowShells();
for (size_t i = 0; i < windowShells.size(); ++i) {
JSDOMWindowShell* windowShell = windowShells[i].get();
DOMWrapperWorld* world = &windowShell->world();
if (JSDOMWindow* window = m_windows.get(world).get())
windowShell->setWindow(window->vm(), window);
else {
DOMWindow* domWindow = frame.document()->domWindow();
if (&windowShell->window()->wrapped() == domWindow)
continue;
windowShell->setWindow(domWindow);
if (page) {
scriptController.attachDebugger(windowShell, page->debugger());
windowShell->window()->setProfileGroup(page->group().identifier());
}
}
if (page)
windowShell->window()->setConsoleClient(&page->console());
}
}
void ScriptCachedFrameData::clear()
{
if (m_windows.isEmpty())
return;
JSLockHolder lock(commonVM());
m_windows.clear();
GCController::singleton().garbageCollectSoon();
}
}