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// Copyright (c) 2006-2009 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_EXTENSIONS_EXTENSION_HOST_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_HOST_H_
#include "chrome/browser/renderer_host/render_view_host_delegate.h"
#include "chrome/browser/tab_contents/render_view_host_delegate_helper.h"
class Browser;
class Extension;
class ExtensionView;
class RenderWidgetHost;
class RenderWidgetHostView;
class WebContents;
struct WebPreferences;
// This class is the browser component of an extension component's RenderView.
// It handles setting up the renderer process, if needed, with special
// privileges available to extensions. It may have a view to be shown in the
// in the browser UI, or it may be hidden.
class ExtensionHost : public RenderViewHostDelegate,
public RenderViewHostDelegate::View {
public:
ExtensionHost(Extension* extension, SiteInstance* site_instance);
~ExtensionHost();
void set_view(ExtensionView* view) { view_ = view; }
ExtensionView* view() const { return view_; }
Extension* extension() { return extension_; }
RenderViewHost* render_view_host() const { return render_view_host_; }
SiteInstance* site_instance() const;
bool did_stop_loading() const { return did_stop_loading_; }
// Initializes our RenderViewHost by creating its RenderView and navigating
// to the given URL. Uses host_view for the RenderViewHost's view (can be
// NULL).
void CreateRenderView(const GURL& url, RenderWidgetHostView* host_view);
// RenderViewHostDelegate
// TODO(mpcomplete): GetProfile is unused.
virtual Profile* GetProfile() const { return NULL; }
virtual void RenderViewCreated(RenderViewHost* render_view_host);
virtual void DidContentsPreferredWidthChange(const int pref_width);
virtual WebPreferences GetWebkitPrefs();
virtual void RunJavaScriptMessage(
const std::wstring& message,
const std::wstring& default_prompt,
const GURL& frame_url,
const int flags,
IPC::Message* reply_msg,
bool* did_suppress_message);
virtual void DidStopLoading(RenderViewHost* render_view_host);
virtual RenderViewHostDelegate::View* GetViewDelegate() const;
virtual ExtensionFunctionDispatcher* CreateExtensionFunctionDispatcher(
RenderViewHost *render_view_host, const std::string& extension_id);
// RenderViewHostDelegate::View
virtual void CreateNewWindow(int route_id,
base::WaitableEvent* modal_dialog_event);
virtual void CreateNewWidget(int route_id, bool activatable);
virtual void ShowCreatedWindow(int route_id,
WindowOpenDisposition disposition,
const gfx::Rect& initial_pos,
bool user_gesture);
virtual void ShowCreatedWidget(int route_id,
const gfx::Rect& initial_pos);
virtual void ShowContextMenu(const ContextMenuParams& params);
virtual void StartDragging(const WebDropData& drop_data);
virtual void UpdateDragCursor(bool is_drop_target);
virtual void TakeFocus(bool reverse);
virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event);
private:
// If this ExtensionHost has a view, this returns the Browser that view is a
// part of. If this is a global background page, we use the active Browser
// instead.
Browser* GetBrowser();
// The extension that we're hosting in this view.
Extension* extension_;
// Optional view that shows the rendered content in the UI.
ExtensionView* view_;
// The host for our HTML content.
RenderViewHost* render_view_host_;
// Common implementations of some RenderViewHostDelegate::View methods.
RenderViewHostDelegateViewHelper delegate_view_helper_;
// Whether the RenderWidget has reported that it has stopped loading.
bool did_stop_loading_;
DISALLOW_COPY_AND_ASSIGN(ExtensionHost);
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_HOST_H_
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