Adds UI components for desktop notifications, including balloon view classes ...

chrome/browser/views/notifications/balloon_view_host.h

+// Copyright (c) 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_VIEWS_NOTIFICATIONS_BALLOON_VIEW_HOST_H_
+#define CHROME_BROWSER_VIEWS_NOTIFICATIONS_BALLOON_VIEW_HOST_H_
+
+#include "chrome/browser/notifications/balloon.h"
+#include "chrome/browser/renderer_host/render_view_host_delegate.h"
+#include "chrome/browser/renderer_host/site_instance.h"
+#include "views/controls/native/native_view_host.h"
+#include "webkit/glue/webpreferences.h"
+
+class Profile;
+class RenderViewHost;
+
+// BalloonViewHost class is a delegate to the renderer host for the HTML
+// notification.  When initialized it creates a new RenderViewHost and loads
+// the contents of the toast into it.  It also handles links within the toast,
+// loading them into a new tab.
+class BalloonViewHost : public views::NativeViewHost,
+                        public RenderViewHostDelegate {
+ public:
+  explicit BalloonViewHost(Balloon* balloon);
+
+  ~BalloonViewHost() {
+     Shutdown();
+  }
+
+  // Stops showing the balloon.
+  void Shutdown();
+
+  // RenderViewHostDelegate overrides.
+  virtual WebPreferences GetWebkitPrefs() { return WebPreferences(); }
+  virtual RendererPreferences GetRendererPrefs() const;
+  virtual SiteInstance* GetSiteInstance() const {
+    return site_instance_.get();
+  }
+  virtual Profile* GetProfile() const { return balloon_->profile(); }
+  virtual const GURL& GetURL() const {
+    return balloon_->notification().content_url();
+  }
+  virtual void RequestOpenURL(const GURL& url, const GURL& referrer,
+                              WindowOpenDisposition disposition);
+  virtual void RendererReady(RenderViewHost* render_view_host);
+  virtual void RendererGone(RenderViewHost* render_view_host);
+  virtual void UpdateTitle(RenderViewHost* /* render_view_host */,
+                           int32 /* page_id */, const std::wstring& title) {
+    title_ = title;
+  }
+  virtual int GetBrowserWindowID() const { return -1; }
+  virtual ViewType::Type GetRenderViewType() const {
+    return ViewType::TAB_CONTENTS;
+  }
+
+  // Accessors.
+  RenderViewHost* render_view_host() const { return render_view_host_; }
+  const std::wstring& title() const { return title_; }
+
+ private:
+  // View overrides.
+  virtual void ViewHierarchyChanged(bool is_add,
+                                    views::View *parent,
+                                    views::View *child);
+
+  // Initialize the view, parented to |parent|, and show it.
+  void Init(gfx::NativeView parent);
+
+  // True after Init() has completed.
+  bool initialized_;
+
+  // Non-owned pointer to the associated balloon.
+  Balloon* balloon_;
+
+  // Site instance for the balloon/profile, to be used for opening new links.
+  scoped_refptr<SiteInstance> site_instance_;
+
+  // Owned pointer to to host for the renderer process.
+  RenderViewHost* render_view_host_;
+
+  // Indicates whether we should notify about disconnection of this balloon.
+  // This is used to ensure disconnection notifications only happen if
+  // a connection notification has happened and that they happen only once.
+  bool should_notify_on_disconnect_;
+
+  // The title of the balloon page.
+  std::wstring title_;
+
+  DISALLOW_COPY_AND_ASSIGN(BalloonViewHost);
+};
+
+#endif  // CHROME_BROWSER_VIEWS_NOTIFICATIONS_BALLOON_VIEW_HOST_H_