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// Copyright (c) 2010 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_TAB_CONTENTS_BACKGROUND_CONTENTS_H_
#define CHROME_BROWSER_TAB_CONTENTS_BACKGROUND_CONTENTS_H_
#include <string>
#include "chrome/browser/jsmessage_box_client.h"
#include "chrome/browser/renderer_host/render_view_host_delegate.h"
#include "chrome/browser/tab_contents/render_view_host_delegate_helper.h"
#include "chrome/common/extensions/extension_constants.h"
#include "chrome/common/notification_registrar.h"
#include "chrome/common/view_types.h"
#include "chrome/common/window_container_type.h"
class RenderWidgetHost;
class RenderWidgetHostView;
class TabContents;
struct WebPreferences;
// This class is a peer of TabContents. It can host a renderer, but does not
// have any visible display. Its navigation is not managed by a
// NavigationController because is has no facility for navigating (other than
// programatically view window.location.href) or RenderViewHostManager because
// it is never allowed to navigate across a SiteInstance boundary.
class BackgroundContents : public RenderViewHostDelegate,
public RenderViewHostDelegate::View,
public NotificationObserver,
public JavaScriptMessageBoxClient {
public:
BackgroundContents(SiteInstance* site_instance,
int routing_id);
~BackgroundContents();
// Provide access to the RenderViewHost for the
// RenderViewHostDelegateViewHelper
RenderViewHost* render_view_host() { return render_view_host_; }
// RenderViewHostDelegate implementation.
virtual RenderViewHostDelegate::View* GetViewDelegate() { return this; }
virtual const GURL& GetURL() const { return url_; }
virtual ViewType::Type GetRenderViewType() const {
return ViewType::BACKGROUND_CONTENTS;
}
virtual int GetBrowserWindowID() const {
return extension_misc::kUnknownWindowId;
}
virtual void DidNavigate(RenderViewHost* render_view_host,
const ViewHostMsg_FrameNavigate_Params& params);
virtual WebPreferences GetWebkitPrefs();
virtual void ProcessDOMUIMessage(const std::string& message,
const Value* content,
const GURL& source_url,
int request_id,
bool has_callback);
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 Close(RenderViewHost* render_view_host);
virtual RendererPreferences GetRendererPrefs(Profile* profile) const;
// RenderViewHostDelegate::View
virtual void CreateNewWindow(
int route_id,
WindowContainerType window_container_type);
virtual void CreateNewWidget(int route_id, WebKit::WebPopupType popup_type);
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,
WebKit::WebDragOperationsMask allowed_operations,
const SkBitmap& image,
const gfx::Point& image_offset) {}
virtual void UpdateDragCursor(WebKit::WebDragOperation operation) {}
virtual void GotFocus() {}
virtual void TakeFocus(bool reverse) {}
virtual bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
bool* is_keyboard_shortcut) {
return false;
}
virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {}
virtual void HandleMouseEvent() {}
virtual void HandleMouseLeave() {}
virtual void UpdatePreferredSize(const gfx::Size& new_size) {}
// NotificationObserver
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
// JavaScriptMessageBoxClient
virtual std::wstring GetMessageBoxTitle(const GURL& frame_url,
bool is_alert);
virtual gfx::NativeWindow GetMessageBoxRootWindow();
virtual void OnMessageBoxClosed(IPC::Message* reply_msg,
bool success,
const std::wstring& prompt);
virtual void SetSuppressMessageBoxes(bool suppress_message_boxes) {}
virtual TabContents* AsTabContents() { return NULL; }
virtual ExtensionHost* AsExtensionHost() { return NULL; }
private:
// The host for our HTML content.
RenderViewHost* render_view_host_;
// Common implementations of some RenderViewHostDelegate::View methods.
RenderViewHostDelegateViewHelper delegate_view_helper_;
// The URL being hosted.
GURL url_;
NotificationRegistrar registrar_;
DISALLOW_COPY_AND_ASSIGN(BackgroundContents);
};
#endif // CHROME_BROWSER_TAB_CONTENTS_BACKGROUND_CONTENTS_H_
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