[WebsiteSettings] API for permissions bubbles.

chrome/browser/ui/website_settings/permission_bubble_manager.h

+// Copyright (c) 2014 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_WEBSITE_SETTINGS_PERMISSION_BUBBLE_MANAGER_H_
+#define CHROME_BROWSER_UI_WEBSITE_SETTINGS_PERMISSION_BUBBLE_MANAGER_H_
+
+#include <vector>
+
+#include "chrome/browser/ui/website_settings/permission_bubble_view.h"
+#include "content/public/browser/web_contents_observer.h"
+#include "content/public/browser/web_contents_user_data.h"
+
+class PermissionBubbleDelegate;
+
+// Provides access to permissions bubbles. Allows clients to add a delegate
+// callback interface to the existing permission bubble configuration.
+// Depending on the situation and policy, that may add new UI to an existing
+// permission bubble, create and show a new permission bubble, or provide no
+// visible UI action at all. (In that case, the delegate will be immediately
+// informed that the permission request failed.)
+//
+// A PermissionBubbleManager is associated with a particular WebContents.
+// Delegates attached to a particular WebContents' PBM must outlive it.
+//
+// The PermissionBubbleManager should be addressed on the UI thread.
+class PermissionBubbleManager
+    : public content::WebContentsObserver,
+      public content::WebContentsUserData<PermissionBubbleManager>,
+      public PermissionBubbleView::Delegate {
+ public:
+  virtual ~PermissionBubbleManager();
+
+  // Add a new consumer delegate to the permission bubble. Ownership of the
+  // delegate remains with the caller. The caller must arrange for the delegate
+  // to outlive the PermissionBubbleManager.
+  virtual void AddPermissionBubbleDelegate(PermissionBubbleDelegate* delegate);
+
+  // Remove a consumer delegate from the permission bubble.
+  virtual void RemovePermissionBubbleDelegate(
+      PermissionBubbleDelegate* delegate);
+
+  // Set the active view for the permission bubble. If this is NULL, it
+  // means the permission bubble is no longer showing.
+  virtual void SetView(PermissionBubbleView* view);
+
+ private:
+  friend class content::WebContentsUserData<PermissionBubbleManager>;
+
+  explicit PermissionBubbleManager(content::WebContents* web_contents);
+
+  // contents::WebContentsObserver:
+  virtual void WebContentsDestroyed(
+      content::WebContents* web_contents) OVERRIDE;
+
+  // PermissionBubbleView::Delegate:
+  virtual void ToggleAccept(int delegate_index, bool new_value) OVERRIDE;
+  virtual void Accept() OVERRIDE;
+  virtual void Deny() OVERRIDE;
+  virtual void Closing() OVERRIDE;
+
+  // Finalize the pending permissions request.
+  void FinalizeBubble();
+
+  // Whether or not we are showing the bubble in this tab.
+  bool bubble_showing_;
+
+  // Set to the UI surface to be used to display the permissions requests.
+  PermissionBubbleView* view_;
+
+  std::vector<PermissionBubbleDelegate*> delegates_;
+  std::vector<bool> accept_state_;
+};
+
+#endif  // CHROME_BROWSER_UI_WEBSITE_SETTINGS_PERMISSION_BUBBLE_MANAGER_H_