| // 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_VIEWS_LOCATION_BAR_ZOOM_BUBBLE_VIEW_H_ |
| #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ZOOM_BUBBLE_VIEW_H_ |
| |
| #include "base/basictypes.h" |
| #include "base/timer/timer.h" |
| #include "chrome/browser/ui/views/frame/immersive_mode_controller.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| #include "extensions/browser/extension_icon_image.h" |
| #include "ui/views/bubble/bubble_delegate.h" |
| #include "ui/views/controls/button/button.h" |
| #include "ui/views/controls/label.h" |
| |
| class FullscreenController; |
| |
| namespace content { |
| class NotificationDetails; |
| class NotificationSource; |
| class WebContents; |
| } |
| |
| namespace views { |
| class ImageButton; |
| } // namespace views |
| |
| // View used to display the zoom percentage when it has changed. |
| class ZoomBubbleView : public views::BubbleDelegateView, |
| public views::ButtonListener, |
| public content::NotificationObserver, |
| public ImmersiveModeController::Observer, |
| public extensions::IconImage::Observer { |
| public: |
| // Shows the bubble and automatically closes it after a short time period if |
| // |auto_close| is true. |
| static void ShowBubble(content::WebContents* web_contents, |
| bool auto_close); |
| |
| // Closes the showing bubble (if one exists). |
| static void CloseBubble(); |
| |
| // Whether the zoom bubble is currently showing. |
| static bool IsShowing(); |
| |
| // Returns the zoom bubble if the zoom bubble is showing. Returns NULL |
| // otherwise. |
| static const ZoomBubbleView* GetZoomBubbleForTest(); |
| |
| private: |
| // Stores information about the extension that initiated the zoom change, if |
| // any. |
| struct ZoomBubbleExtensionInfo { |
| ZoomBubbleExtensionInfo(); |
| ~ZoomBubbleExtensionInfo(); |
| |
| // The unique id of the extension, which is used to find the correct |
| // extension after clicking on the image button in the zoom bubble. |
| std::string id; |
| |
| // The name of the extension, which appears in the tooltip of the image |
| // button in the zoom bubble. |
| std::string name; |
| |
| // An image of the extension's icon, which appears in the zoom bubble as an |
| // image button. |
| scoped_ptr<const extensions::IconImage> icon_image; |
| }; |
| |
| ZoomBubbleView(views::View* anchor_view, |
| content::WebContents* web_contents, |
| bool auto_close, |
| ImmersiveModeController* immersive_mode_controller, |
| FullscreenController* fullscreen_controller); |
| virtual ~ZoomBubbleView(); |
| |
| // If the bubble is not anchored to a view, places the bubble in the top |
| // right (left in RTL) of the |screen_bounds| that contain |web_contents_|'s |
| // browser window. Because the positioning is based on the size of the |
| // bubble, this must be called after the bubble is created. |
| void AdjustForFullscreen(const gfx::Rect& screen_bounds); |
| |
| // Refreshes the bubble by changing the zoom percentage appropriately and |
| // resetting the timer if necessary. |
| void Refresh(); |
| |
| void Close(); |
| |
| // Sets information about the extension that initiated the zoom change. |
| // Calling this method asserts that the extension |extension| did initiate |
| // the zoom change. |
| void SetExtensionInfo(const extensions::Extension* extension); |
| |
| // Starts a timer which will close the bubble if |auto_close_| is true. |
| void StartTimerIfNecessary(); |
| |
| // Stops the auto-close timer. |
| void StopTimer(); |
| |
| // extensions::IconImage::Observer overrides: |
| virtual void OnExtensionIconImageChanged( |
| extensions::IconImage* /* image */) OVERRIDE; |
| |
| // views::View methods. |
| virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE; |
| virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE; |
| |
| // ui::EventHandler method. |
| virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE; |
| |
| // views::ButtonListener method. |
| virtual void ButtonPressed(views::Button* sender, |
| const ui::Event& event) OVERRIDE; |
| |
| // views::BubbleDelegateView method. |
| virtual void Init() OVERRIDE; |
| virtual void WindowClosing() OVERRIDE; |
| |
| // content::NotificationObserver method. |
| virtual void Observe(int type, |
| const content::NotificationSource& source, |
| const content::NotificationDetails& details) OVERRIDE; |
| |
| // ImmersiveModeController::Observer methods. |
| virtual void OnImmersiveRevealStarted() OVERRIDE; |
| virtual void OnImmersiveModeControllerDestroyed() OVERRIDE; |
| |
| ZoomBubbleExtensionInfo extension_info_; |
| |
| // Singleton instance of the zoom bubble. The zoom bubble can only be shown on |
| // the active browser window, so there is no case in which it will be shown |
| // twice at the same time. |
| static ZoomBubbleView* zoom_bubble_; |
| |
| // Timer used to close the bubble when |auto_close_| is true. |
| base::OneShotTimer<ZoomBubbleView> timer_; |
| |
| // Image button in the zoom bubble that will show the |extension_icon_| image |
| // if an extension initiated the zoom change, and links to that extension at |
| // "chrome://extensions". |
| views::ImageButton* image_button_; |
| |
| // Label displaying the zoom percentage. |
| views::Label* label_; |
| |
| // The WebContents for the page whose zoom has changed. |
| content::WebContents* web_contents_; |
| |
| // Whether the currently displayed bubble will automatically close. |
| bool auto_close_; |
| |
| // The immersive mode controller for the BrowserView containing |
| // |web_contents_|. |
| // Not owned. |
| ImmersiveModeController* immersive_mode_controller_; |
| |
| // Used to register for fullscreen change notifications. |
| content::NotificationRegistrar registrar_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ZoomBubbleView); |
| }; |
| |
| #endif // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ZOOM_BUBBLE_VIEW_H_ |