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// Copyright (c) 2011 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 CHROME_FRAME_EXTERNAL_TAB_H_
#define CHROME_FRAME_EXTERNAL_TAB_H_
#pragma once
#include <windows.h>
#include <atlbase.h>
#include <atlwin.h>
#include <string>
#include <vector>
#include "base/memory/scoped_ptr.h"
#include "base/time.h"
#include "base/win/scoped_comptr.h"
#include "chrome/common/automation_constants.h"
#include "chrome_frame/cfproxy.h"
#include "chrome_frame/task_marshaller.h"
#include "content/common/page_zoom.h"
#include "googleurl/src/gurl.h"
class Task;
class CancelableTask;
namespace base {
class TimeDelta;
class WaitableEvent;
}
namespace IPC {
struct NavigationInfo;
}
namespace gfx {
class Rect;
}
// This is the delegate/callback interface that has to be implemented
// by the customers of ExternalTabProxy class.
class UIDelegate {
public:
virtual void OnNavigationStateChanged(
int flags, const NavigationInfo& nav_info) = 0;
virtual void OnUpdateTargetUrl(const std::wstring& new_target_url) = 0;
virtual void OnLoad(const GURL& url) = 0;
virtual void OnMoveWindow(const gfx::Rect& pos) = 0;
virtual void OnMessageFromChromeFrame(
const std::string& message, const std::string& origin,
const std::string& target) = 0;
virtual void OnHandleContextMenu(
const ContextMenuModel& context_menu_model, int align_flags,
const MiniContextMenuParams& params) = 0;
virtual void OnHandleAccelerator(const MSG& accel_message) = 0;
virtual void OnTabbedOut(bool reverse) = 0;
virtual void OnGoToHistoryOffset(int offset) = 0;
virtual void OnOpenURL(
const GURL& url_to_open, const GURL& referrer, int open_disposition) = 0;
protected:
~UIDelegate() {}
};
struct CreateTabParams {
struct ProxyParams proxy_params;
bool is_incognito;
bool is_widget_mode;
GURL url;
GURL referrer;
};
class NavigationConstraints;
/////////////////////////////////////////////////////////////////////////
// ExternalTabProxy is a mediator between ChromeProxy (which runs mostly in the
// background IPC-channel thread) and the UI object (ActiveX, ActiveDocument).
// The lifetime of ExternalTabProxy is determined by the UI object.
//
// When ExternalTabProxy dies:
// 1. Remove itself as a ChromeProxyDelegate. This blocks until _Disconnected()
// is received.
// 2. Kills all posted tasks to the UI thread.
// 3. Stop all network requests
// => It does not have to (and should not) be a refcount-ed object.
// Non-public inheritance is not allowed by the style-guide.
class ExternalTabProxy : public CWindowImpl<ExternalTabProxy>,
public ChromeProxyDelegate {
public:
ExternalTabProxy();
~ExternalTabProxy();
#ifdef UNIT_TEST
void set_proxy_factory(ChromeProxyFactory* factory) {
proxy_factory_ = factory;
}
#endif
// IPC::Channel::Listener implementation.
bool OnMessageReceived(const IPC::Message& message);
//
virtual void CreateTab(const CreateTabParams& create_params,
UIDelegate* delegate);
virtual void Navigate(const std::string& url, const std::string& referrer,
NavigationConstraints* navigation_constraints);
virtual void NavigateToIndex(int index);
virtual void ForwardMessageFromExternalHost(const std::string& message,
const std::string& origin, const std::string& target);
virtual void ChromeFrameHostMoved();
// Attaches an existing external tab to this automation client instance.
virtual void ConnectToExternalTab(uint64 external_tab_cookie);
virtual void BlockExternalTab(uint64 cookie);
void SetZoomLevel(PageZoom::Function zoom_level);
private:
BEGIN_MSG_MAP(ExternalTabProxy)
CHAIN_MSG_MAP_MEMBER(ui_);
END_MSG_MAP()
//////////////////////////////////////////////////////////////////////////
// ChromeProxyDelegate implementation
virtual int tab_handle() {
return tab_;
}
virtual void Connected(ChromeProxy* proxy);
virtual void PeerLost(ChromeProxy* proxy, DisconnectReason reason);
virtual void Disconnected();
// Sync message responses.
virtual void Completed_CreateTab(bool success, HWND chrome_wnd,
HWND tab_window, int tab_handle, int session_id);
virtual void Completed_ConnectToTab(bool success, HWND chrome_window,
HWND tab_window, int tab_handle, int session_id);
virtual void Completed_Navigate(bool success,
enum AutomationMsg_NavigationResponseValues res);
// Network requests from Chrome.
virtual void OnNetwork_Start(
int request_id, const AutomationURLRequest& request_info);
virtual void OnNetwork_Read(int request_id, int bytes_to_read);
virtual void OnNetwork_End(int request_id, const net::URLRequestStatus& s);
virtual void OnNetwork_DownloadInHost(int request_id);
virtual void OnGetCookies(const GURL& url, int cookie_id);
virtual void OnSetCookie(const GURL& url, const std::string& cookie);
// Navigation progress notifications.
virtual void OnNavigationStateChanged(
int flags, const NavigationInfo& nav_info);
virtual void OnUpdateTargetUrl(const std::wstring& url);
virtual void OnNavigationFailed(int error_code, const GURL& gurl);
virtual void OnDidNavigate(const NavigationInfo& navigation_info);
virtual void OnTabLoaded(const GURL& url);
virtual void OnMoveWindow(const gfx::Rect& pos);
virtual void OnOpenURL(const GURL& url_to_open, const GURL& referrer,
int open_disposition);
virtual void OnGoToHistoryOffset(int offset);
virtual void OnMessageToHost(
const std::string& message, const std::string& origin,
const std::string& target);
// Misc. UI.
virtual void OnHandleAccelerator(const MSG& accel_message);
virtual void OnHandleContextMenu(const ContextMenuModel& context_menu_model,
int align_flags,
const MiniContextMenuParams& params);
virtual void OnTabbedOut(bool reverse);
// Other
virtual void OnTabClosed();
virtual void OnAttachTab(const AttachExternalTabParams& attach_params);
// end of ChromeProxyDelegate methods
//////////////////////////////////////////////////////////////////////////
void Init();
void Destroy();
// The UiXXXX are the ChromeProxyDelegate methods but on UI thread.
void UiConnected(ChromeProxy* proxy);
void UiPeerLost(ChromeProxy* proxy, DisconnectReason reason);
void UiCompleted_CreateTab(bool success, HWND chrome_window,
HWND tab_window, int tab_handle, int session_id);
// With the present state of affairs the only response we can possibly handle
// in the background IPC thread is Completed_CreateTab() where we can
// initiate a navigation (if there is a pending one).
// To simplify - will handle Completed_CreateTab in UI thread and avoid
// the need of lock when accessing members.
enum {
NONE,
INIT_IN_PROGRESS,
CREATE_TAB_IN_PROGRESS,
READY,
RELEASE_CF_PROXY_IN_PROGRESS
} state_;
int tab_;
HWND tab_wnd_;
HWND chrome_wnd_;
ChromeProxyFactory* proxy_factory_;
// Accessed only in the UI thread for simplicity.
ChromeProxy* proxy_;
// Accessed from ipc thread as well. It's safe if the object goes away
// because this should be preceded by destruction of the window and
// therefore all queued tasks should be destroyed.
UIDelegate* ui_delegate_;
TaskMarshallerThroughMessageQueue ui_;
scoped_ptr<base::WaitableEvent> done_;
CreateTabParams tab_params_;
struct PendingNavigation {
GURL url;
GURL referrer;
void Set(const GURL& gurl, const GURL& ref) {
url = gurl;
referrer = ref;
}
} pending_navigation_;
};
#endif // CHROME_FRAME_EXTERNAL_TAB_H_
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