Home | History | Annotate | Download | only in caption_buttons 
      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef ASH_WM_CAPTION_BUTTONS_MAXIMIZE_BUBBLE_CONTROLLER_H_
      6 #define ASH_WM_CAPTION_BUTTONS_MAXIMIZE_BUBBLE_CONTROLLER_H_
      7 
      8 #include "ash/ash_export.h"
      9 #include "ash/wm/caption_buttons/caption_button_types.h"
     10 #include "ash/wm/workspace/snap_types.h"
     11 #include "base/memory/scoped_ptr.h"
     12 
     13 namespace aura {
     14 class Window;
     15 }
     16 
     17 namespace base {
     18 class Timer;
     19 }
     20 
     21 namespace views {
     22 class CustomButton;
     23 }
     24 
     25 namespace ash {
     26 
     27 class FrameMaximizeButton;
     28 class MaximizeBubbleControllerBubble;
     29 
     30 // A class which shows a helper UI for the maximize button after a delay.
     31 class ASH_EXPORT MaximizeBubbleController {
     32  public:
     33   MaximizeBubbleController(FrameMaximizeButton* frame_maximize_button,
     34                            MaximizeBubbleFrameState maximize_type,
     35                            int appearance_delay_ms);
     36   // Called from the outside to destroy the interface to the UI visuals.
     37   // The visuals will then delete when possible (maybe asynchronously).
     38   virtual ~MaximizeBubbleController();
     39 
     40   // Update the UI visuals to reflect the previewed |snap_type| snapping state.
     41   void SetSnapType(SnapType snap_type);
     42 
     43   // To achieve proper Z-sorting with the snap animation, this window will be
     44   // presented above the phantom window.
     45   aura::Window* GetBubbleWindow();
     46 
     47   // Reset the delay of the menu creation (if it was not created yet).
     48   void DelayCreation();
     49 
     50   // Called to tell the owning FrameMaximizeButton that a button was clicked.
     51   void OnButtonClicked(SnapType snap_type);
     52 
     53   // Called to tell the the owning FrameMaximizeButton that the hover status
     54   // for a button has changed. |snap_type| can be either SNAP_LEFT, SNAP_RIGHT,
     55   // SNAP_MINIMIZE or SNAP_NONE.
     56   void OnButtonHover(SnapType snap_type);
     57 
     58   // Get the owning FrameMaximizeButton.
     59   FrameMaximizeButton* frame_maximize_button() {
     60     return frame_maximize_button_;
     61   }
     62 
     63   // The status of the associated window: Maximized or normal.
     64   MaximizeBubbleFrameState maximize_type() const { return maximize_type_; }
     65 
     66   // A unit test function to return buttons of the sub menu. |state| can be
     67   // either SNAP_LEFT, SNAP_RIGHT or SNAP_MINIMIZE.
     68   views::CustomButton* GetButtonForUnitTest(SnapType state);
     69 
     70   // Called from the the Bubble class to destroy itself: It tells the owning
     71   // object that it will destroy itself asynchronously. The owner will then
     72   // destroy |this|.
     73   void RequestDestructionThroughOwner();
     74 
     75  private:
     76   // The function which creates the bubble once the delay is elapsed.
     77   void CreateBubble();
     78 
     79   // The owning button which is also the anchor for the menu.
     80   FrameMaximizeButton* frame_maximize_button_;
     81 
     82   // The bubble menu.
     83   MaximizeBubbleControllerBubble* bubble_;
     84 
     85   // The current maximize state of the owning window.
     86   const MaximizeBubbleFrameState maximize_type_;
     87 
     88   // The snap type with which the bubble is created. This is needed because the
     89   // creation of the bubble can be delayed and SetSnapType() may be called
     90   // before the bubble is created.
     91   SnapType snap_type_for_creation_;
     92 
     93   // The timer for the delayed creation of the menu.
     94   scoped_ptr<base::Timer> timer_;
     95 
     96   // The appearance delay in ms (delay and fade in & fade out delay).
     97   const int appearance_delay_ms_;
     98 
     99   DISALLOW_COPY_AND_ASSIGN(MaximizeBubbleController);
    100 };
    101 
    102 }  // namespace ash
    103 
    104 #endif  // ASH_WM_CAPTION_BUTTONS_MAXIMIZE_BUBBLE_CONTROLLER_H_
    105