chrome/browser/ui/cocoa/extensions/browser_actions_controller.h

   1 // Copyright (c) 2011 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 CHROME_BROWSER_UI_COCOA_EXTENSIONS_BROWSER_ACTIONS_CONTROLLER_H_
   6 #define CHROME_BROWSER_UI_COCOA_EXTENSIONS_BROWSER_ACTIONS_CONTROLLER_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #import "base/mac/scoped_nsobject.h"
  11 #include "base/memory/scoped_ptr.h"
  12
  13 class Browser;
  14 @class BrowserActionButton;
  15 @class BrowserActionsContainerView;
  16 @class ExtensionPopupController;
  17 class ExtensionToolbarModel;
  18 class ExtensionServiceObserverBridge;
  19 @class MenuButton;
  20 class Profile;
  21
  22 namespace extensions {
  23 class Extension;
  24 }
  25
  26 // Sent when the visibility of the Browser Actions changes.
  27 extern NSString* const kBrowserActionVisibilityChangedNotification;
  28
  29 // Handles state and provides an interface for controlling the Browser Actions
  30 // container within the Toolbar.
  31 @interface BrowserActionsController : NSObject<NSMenuDelegate> {
  32  @private
  33   // Reference to the current browser. Weak.
  34   Browser* browser_;
  35
  36   // The view from Toolbar.xib we'll be rendering our browser actions in. Weak.
  37   BrowserActionsContainerView* containerView_;
  38
  39   // The current profile. Weak.
  40   Profile* profile_;
  41
  42   // The model that tracks the order of the toolbar icons. Weak.
  43   ExtensionToolbarModel* toolbarModel_;
  44
  45   // The observer for the ExtensionService we're getting events from.
  46   scoped_ptr<ExtensionServiceObserverBridge> observer_;
  47
  48   // A dictionary of Extension ID -> BrowserActionButton pairs representing the
  49   // buttons present in the container view. The ID is a string unique to each
  50   // extension.
  51   base::scoped_nsobject<NSMutableDictionary> buttons_;
  52
  53   // Array of hidden buttons in the correct order in which the user specified.
  54   base::scoped_nsobject<NSMutableArray> hiddenButtons_;
  55
  56   // The currently running chevron animation (fade in/out).
  57   base::scoped_nsobject<NSViewAnimation> chevronAnimation_;
  58
  59   // The chevron button used when Browser Actions are hidden.
  60   base::scoped_nsobject<MenuButton> chevronMenuButton_;
  61
  62   // The Browser Actions overflow menu.
  63   base::scoped_nsobject<NSMenu> overflowMenu_;
  64 }
  65
  66 @property(readonly, nonatomic) BrowserActionsContainerView* containerView;
  67
  68 // Initializes the controller given the current browser and container view that
  69 // will hold the browser action buttons.
  70 - (id)initWithBrowser:(Browser*)browser
  71         containerView:(BrowserActionsContainerView*)container;
  72
  73 // Update the display of all buttons.
  74 - (void)update;
  75
  76 // Returns the current number of browser action buttons within the container,
  77 // whether or not they are displayed.
  78 - (NSUInteger)buttonCount;
  79
  80 // Returns the current number of browser action buttons displayed in the
  81 // container.
  82 - (NSUInteger)visibleButtonCount;
  83
  84 // Resizes the container given the number of visible buttons, taking into
  85 // account the size of the grippy. Also updates the persistent width preference.
  86 - (void)resizeContainerAndAnimate:(BOOL)animate;
  87
  88 // Returns the NSView for the action button associated with an extension.
  89 - (NSView*)browserActionViewForExtension:(
  90     const extensions::Extension*)extension;
  91
  92 // Returns the saved width determined by the number of shown Browser Actions
  93 // preference property. If no preference is found, then the width for the
  94 // container is returned as if all buttons are shown.
  95 - (CGFloat)savedWidth;
  96
  97 // Returns where the popup arrow should point to for a given Browser Action. If
  98 // it is passed an extension that is not a Browser Action, then it will return
  99 // NSZeroPoint.
 100 - (NSPoint)popupPointForBrowserAction:(const extensions::Extension*)extension;
 101
 102 // Returns whether the chevron button is currently hidden or in the process of
 103 // being hidden (fading out). Will return NO if it is not hidden or is in the
 104 // process of fading in.
 105 - (BOOL)chevronIsHidden;
 106
 107 @end  // @interface BrowserActionsController
 108
 109 @interface BrowserActionsController(TestingAPI)
 110 - (NSButton*)buttonWithIndex:(NSUInteger)index;
 111 @end
 112
 113 #endif  // CHROME_BROWSER_UI_COCOA_EXTENSIONS_BROWSER_ACTIONS_CONTROLLER_H_