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 #include "ui/gfx/geometry/size.h"
  13
  14 class Browser;
  15 @class BrowserActionButton;
  16 @class BrowserActionsContainerView;
  17 @class MenuButton;
  18 class ToolbarActionsBar;
  19 class ToolbarActionsBarDelegate;
  20
  21 namespace content {
  22 class WebContents;
  23 }
  24
  25 // Sent when the visibility of the Browser Actions changes.
  26 extern NSString* const kBrowserActionVisibilityChangedNotification;
  27
  28 // Handles state and provides an interface for controlling the Browser Actions
  29 // container within the Toolbar.
  30 @interface BrowserActionsController : NSObject<NSMenuDelegate> {
  31  @private
  32   // Reference to the current browser. Weak.
  33   Browser* browser_;
  34
  35   // The view from Toolbar.xib we'll be rendering our browser actions in. Weak.
  36   BrowserActionsContainerView* containerView_;
  37
  38   // Array of toolbar action buttons in the correct order for them to be
  39   // displayed (includes both hidden and visible buttons).
  40   base::scoped_nsobject<NSMutableArray> buttons_;
  41
  42   // The delegate for the ToolbarActionsBar.
  43   scoped_ptr<ToolbarActionsBarDelegate> toolbarActionsBarBridge_;
  44
  45   // The controlling ToolbarActionsBar.
  46   scoped_ptr<ToolbarActionsBar> toolbarActionsBar_;
  47
  48   // True if we should supppress the chevron (we do this during drag
  49   // animations).
  50   BOOL suppressChevron_;
  51
  52   // True if this is the overflow container for toolbar actions.
  53   BOOL isOverflow_;
  54
  55   // The currently running chevron animation (fade in/out).
  56   base::scoped_nsobject<NSViewAnimation> chevronAnimation_;
  57
  58   // The chevron button used when Browser Actions are hidden.
  59   base::scoped_nsobject<MenuButton> chevronMenuButton_;
  60
  61   // The Browser Actions overflow menu.
  62   base::scoped_nsobject<NSMenu> overflowMenu_;
  63 }
  64
  65 @property(readonly, nonatomic) BrowserActionsContainerView* containerView;
  66 @property(readonly, nonatomic) Browser* browser;
  67
  68 // Initializes the controller given the current browser and container view that
  69 // will hold the browser action buttons. If |mainController| is nil, the created
  70 // BrowserActionsController will be the main controller; otherwise (if this is
  71 // for the overflow menu), |mainController| should be controller of the main bar
  72 // for the |browser|.
  73 - (id)initWithBrowser:(Browser*)browser
  74         containerView:(BrowserActionsContainerView*)container
  75        mainController:(BrowserActionsController*)mainController;
  76
  77 // Update the display of all buttons.
  78 - (void)update;
  79
  80 // Returns the current number of browser action buttons within the container,
  81 // whether or not they are displayed.
  82 - (NSUInteger)buttonCount;
  83
  84 // Returns the current number of browser action buttons displayed in the
  85 // container.
  86 - (NSUInteger)visibleButtonCount;
  87
  88 // Returns the preferred size for the container.
  89 - (gfx::Size)preferredSize;
  90
  91 // Returns where the popup arrow should point to for the action with the given
  92 // |id|. If passed an id with no corresponding button, returns NSZeroPoint.
  93 - (NSPoint)popupPointForId:(const std::string&)id;
  94
  95 // Returns whether the chevron button is currently hidden or in the process of
  96 // being hidden (fading out). Will return NO if it is not hidden or is in the
  97 // process of fading in.
  98 - (BOOL)chevronIsHidden;
  99
 100 // Returns the currently-active web contents.
 101 - (content::WebContents*)currentWebContents;
 102
 103 @end  // @interface BrowserActionsController
 104
 105 @interface BrowserActionsController(TestingAPI)
 106 - (BrowserActionButton*)buttonWithIndex:(NSUInteger)index;
 107 - (ToolbarActionsBar*)toolbarActionsBar;
 108 + (BrowserActionsController*)fromToolbarActionsBarDelegate:
 109     (ToolbarActionsBarDelegate*)delegate;
 110 @end
 111
 112 #endif  // CHROME_BROWSER_UI_COCOA_EXTENSIONS_BROWSER_ACTIONS_CONTROLLER_H_