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

   1 // Copyright (c) 2012 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_ACTION_BUTTON_H_
   6 #define CHROME_BROWSER_UI_COCOA_EXTENSIONS_BROWSER_ACTION_BUTTON_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #import "base/mac/scoped_nsobject.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #import "chrome/browser/ui/cocoa/image_button_cell.h"
  13
  14 class Browser;
  15 class ExtensionAction;
  16 @class ExtensionActionContextMenuController;
  17 class ExtensionActionIconFactoryBridge;
  18
  19 namespace extensions {
  20 class Extension;
  21 }
  22
  23 // Fired on each drag event while the user is moving the button.
  24 extern NSString* const kBrowserActionButtonDraggingNotification;
  25 // Fired when the user drops the button.
  26 extern NSString* const kBrowserActionButtonDragEndNotification;
  27
  28 @interface BrowserActionButton : NSButton<NSMenuDelegate> {
  29  @private
  30   // Bridge to proxy Chrome notifications to the Obj-C class as well as load the
  31   // extension's icon.
  32   scoped_ptr<ExtensionActionIconFactoryBridge> iconFactoryBridge_;
  33
  34   // Used to move the button and query whether a button is currently animating.
  35   base::scoped_nsobject<NSViewAnimation> moveAnimation_;
  36
  37   // The extension for this button. Weak.
  38   const extensions::Extension* extension_;
  39
  40   // The ID of the active tab.
  41   int tabId_;
  42
  43   // Whether the button is currently being dragged.
  44   BOOL isBeingDragged_;
  45
  46   // Drag events could be intercepted by other buttons, so to make sure that
  47   // this is the only button moving if it ends up being dragged. This is set to
  48   // YES upon |mouseDown:|.
  49   BOOL dragCouldStart_;
  50
  51   // The point where the mouse down event occurred. Used to prevent a drag from
  52   // starting until it moves at least kMinimumDragDistance.
  53   NSPoint dragStartPoint_;
  54
  55   base::scoped_nsobject<
  56       ExtensionActionContextMenuController> contextMenuController_;
  57 }
  58
  59 - (id)initWithFrame:(NSRect)frame
  60           extension:(const extensions::Extension*)extension
  61             browser:(Browser*)browser
  62               tabId:(int)tabId;
  63
  64 - (void)setFrame:(NSRect)frameRect animate:(BOOL)animate;
  65
  66 - (void)updateState;
  67
  68 - (BOOL)isAnimating;
  69
  70 // Returns a pointer to an autoreleased NSImage with the badge, shadow and
  71 // cell image drawn into it.
  72 - (NSImage*)compositedImage;
  73
  74 @property(readonly, nonatomic) BOOL isBeingDragged;
  75 @property(readonly, nonatomic) const extensions::Extension* extension;
  76 @property(readwrite, nonatomic) int tabId;
  77
  78 @end
  79
  80 @interface BrowserActionCell : ImageButtonCell {
  81  @private
  82   // The current tab ID used when drawing the cell.
  83   int tabId_;
  84
  85   // The action we're drawing the cell for. Weak.
  86   ExtensionAction* extensionAction_;
  87 }
  88
  89 @property(readwrite, nonatomic) int tabId;
  90 @property(readwrite, nonatomic) ExtensionAction* extensionAction;
  91
  92 @end
  93
  94 #endif  // CHROME_BROWSER_UI_COCOA_EXTENSIONS_BROWSER_ACTION_BUTTON_H_