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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_WINDOW_PROXY_MANAGER_H_
#define THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_WINDOW_PROXY_MANAGER_H_
#include <utility>
#include "third_party/blink/renderer/bindings/core/v8/local_window_proxy.h"
#include "third_party/blink/renderer/bindings/core/v8/remote_window_proxy.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/remote_frame.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "v8/include/v8.h"
namespace blink {
class DOMWrapperWorld;
class SecurityOrigin;
class WindowProxyManager : public GarbageCollected<WindowProxyManager> {
public:
void Trace(Visitor*);
v8::Isolate* GetIsolate() const { return isolate_; }
void ClearForClose();
void CORE_EXPORT ClearForNavigation();
void ClearForSwap();
void ClearForV8MemoryPurge();
// Global proxies are passed in a vector to maintain their order: global proxy
// object for the main world is always first. This is needed to prevent bugs
// like https://crbug.com/700077 .
using GlobalProxyVector =
Vector<std::pair<DOMWrapperWorld*, v8::Local<v8::Object>>>;
void CORE_EXPORT ReleaseGlobalProxies(GlobalProxyVector&);
void CORE_EXPORT SetGlobalProxies(const GlobalProxyVector&);
WindowProxy* MainWorldProxy() {
window_proxy_->InitializeIfNeeded();
return window_proxy_;
}
WindowProxy* GetWindowProxy(DOMWrapperWorld& world) {
WindowProxy* window_proxy = WindowProxyMaybeUninitialized(world);
window_proxy->InitializeIfNeeded();
return window_proxy;
}
protected:
using IsolatedWorldMap = HeapHashMap<int, Member<WindowProxy>>;
enum class FrameType { kLocal, kRemote };
WindowProxyManager(Frame&, FrameType);
private:
// Creates an uninitialized WindowProxy.
WindowProxy* CreateWindowProxy(DOMWrapperWorld&);
WindowProxy* WindowProxyMaybeUninitialized(DOMWrapperWorld&);
v8::Isolate* const isolate_;
const Member<Frame> frame_;
const FrameType frame_type_;
protected:
const Member<WindowProxy> window_proxy_;
IsolatedWorldMap isolated_worlds_;
};
template <typename FrameType, typename ProxyType>
class WindowProxyManagerImplHelper : public WindowProxyManager {
private:
using Base = WindowProxyManager;
public:
ProxyType* MainWorldProxy() {
return static_cast<ProxyType*>(Base::MainWorldProxy());
}
ProxyType* WindowProxy(DOMWrapperWorld& world) {
return static_cast<ProxyType*>(Base::GetWindowProxy(world));
}
protected:
WindowProxyManagerImplHelper(Frame& frame, FrameType frame_type)
: WindowProxyManager(frame, frame_type) {}
};
class LocalWindowProxyManager
: public WindowProxyManagerImplHelper<LocalFrame, LocalWindowProxy> {
public:
explicit LocalWindowProxyManager(LocalFrame& frame)
: WindowProxyManagerImplHelper<LocalFrame, LocalWindowProxy>(
frame,
FrameType::kLocal) {}
// TODO(yukishiino): Remove this method.
LocalWindowProxy* MainWorldProxyMaybeUninitialized() {
return static_cast<LocalWindowProxy*>(window_proxy_.Get());
}
// Sets the given security origin to the main world's context. Also updates
// the security origin of the context for each isolated world.
void UpdateSecurityOrigin(const SecurityOrigin*);
};
class RemoteWindowProxyManager
: public WindowProxyManagerImplHelper<RemoteFrame, RemoteWindowProxy> {
public:
explicit RemoteWindowProxyManager(RemoteFrame& frame)
: WindowProxyManagerImplHelper<RemoteFrame, RemoteWindowProxy>(
frame,
FrameType::kRemote) {}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_WINDOW_PROXY_MANAGER_H_
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