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// Copyright (c) 2012 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_BROWSER_UI_PANELS_PANEL_HOST_H_
#define CHROME_BROWSER_UI_PANELS_PANEL_HOST_H_
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/extensions/extension_function_dispatcher.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/common/page_zoom.h"
class FaviconTabHelper;
class GURL;
class Panel;
class PrefsTabHelper;
class Profile;
namespace content {
class WebContents;
}
namespace extensions {
class WindowController;
}
namespace gfx {
class Image;
class Rect;
}
// Helper class for Panel, implementing WebContents hosting and Extension
// delegates. Owned and used by Panel only.
class PanelHost : public content::WebContentsDelegate,
public content::WebContentsObserver,
public ExtensionFunctionDispatcher::Delegate {
public:
PanelHost(Panel* panel, Profile* profile);
virtual ~PanelHost();
void Init(const GURL& url);
content::WebContents* web_contents() { return web_contents_.get(); }
void DestroyWebContents();
// Returns the icon for the current page.
gfx::Image GetPageIcon() const;
// content::WebContentsDelegate overrides.
virtual content::WebContents* OpenURLFromTab(
content::WebContents* source,
const content::OpenURLParams& params) OVERRIDE;
virtual void NavigationStateChanged(const content::WebContents* source,
unsigned changed_flags) OVERRIDE;
virtual void AddNewContents(content::WebContents* source,
content::WebContents* new_contents,
WindowOpenDisposition disposition,
const gfx::Rect& initial_pos,
bool user_gesture,
bool* was_blocked) OVERRIDE;
virtual void ActivateContents(content::WebContents* contents) OVERRIDE;
virtual void DeactivateContents(content::WebContents* contents) OVERRIDE;
virtual void LoadingStateChanged(content::WebContents* source) OVERRIDE;
virtual void CloseContents(content::WebContents* source) OVERRIDE;
virtual void MoveContents(content::WebContents* source,
const gfx::Rect& pos) OVERRIDE;
virtual bool IsPopupOrPanel(
const content::WebContents* source) const OVERRIDE;
virtual void ContentsZoomChange(bool zoom_in) OVERRIDE;
virtual void HandleKeyboardEvent(
content::WebContents* source,
const content::NativeWebKeyboardEvent& event) OVERRIDE;
virtual void WebContentsFocused(content::WebContents* contents) OVERRIDE;
virtual void ResizeDueToAutoResize(content::WebContents* web_contents,
const gfx::Size& new_size) OVERRIDE;
// content::WebContentsObserver overrides.
virtual void RenderViewCreated(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void RenderViewGone(base::TerminationStatus status) OVERRIDE;
virtual void WebContentsDestroyed(
content::WebContents* web_contents) OVERRIDE;
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
// ExtensionFunctionDispatcher::Delegate overrides.
virtual extensions::WindowController* GetExtensionWindowController() const
OVERRIDE;
virtual content::WebContents* GetAssociatedWebContents() const OVERRIDE;
// Actions on web contents.
void Reload();
void ReloadIgnoringCache();
void StopLoading();
void Zoom(content::PageZoom zoom);
private:
// Helper to close panel via the message loop.
void ClosePanel();
// Message handlers.
void OnRequest(const ExtensionHostMsg_Request_Params& params);
Panel* panel_; // Weak, owns us.
Profile* profile_;
ExtensionFunctionDispatcher extension_function_dispatcher_;
// The following factory is used to close the panel via the message loop.
base::WeakPtrFactory<PanelHost> weak_factory_;
scoped_ptr<content::WebContents> web_contents_;
DISALLOW_COPY_AND_ASSIGN(PanelHost);
};
#endif // CHROME_BROWSER_UI_PANELS_PANEL_HOST_H_
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