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// Copyright (c) 2009 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_COCOA_TAB_CONTROLLER_H_
#define CHROME_BROWSER_COCOA_TAB_CONTROLLER_H_
#import <Cocoa/Cocoa.h>
// The loading/waiting state of the tab.
// TODO(pinkerton): this really doesn't belong here, but something needs to
// know the state and another parallel array in TabStripController doesn't seem
// like the right place either. In a perfect world, this class shouldn't know
// anything about states that are specific to a browser.
enum TabLoadingState {
kTabDone,
kTabLoading,
kTabWaiting,
kTabCrashed,
};
@class TabView;
@protocol TabControllerTarget;
// A class that manages a single tab in the tab strip. Set its target/action
// to be sent a message when the tab is selected by the user clicking. Setting
// the |loading| property to YES visually indicates that this tab is currently
// loading content via a spinner.
//
// The tab has the notion of an "icon view" which can be used to display
// identifying characteristics such as a favicon, or since it's a full-fledged
// view, something with state and animation such as a throbber for illustrating
// progress. The default in the nib is an image view so nothing special is
// required if that's all you need.
@interface TabController : NSViewController {
@private
IBOutlet NSView* iconView_;
IBOutlet NSTextField* titleView_;
IBOutlet NSMenu* contextMenu_;
IBOutlet NSButton* closeButton_;
NSRect originalIconFrame_; // frame of iconView_ as loaded from nib
BOOL isIconShowing_; // last state of iconView_ in updateVisibility
BOOL selected_;
TabLoadingState loadingState_;
float iconTitleXOffset_; // between left edges of icon and title
float titleCloseWidthOffset_; // between right edges of icon and close button
id<TabControllerTarget> target_; // weak, where actions are sent
SEL action_; // selector sent when tab is selected by clicking
}
@property(assign, nonatomic) TabLoadingState loadingState;
@property(assign, nonatomic) BOOL selected;
@property(assign, nonatomic) id target;
@property(assign, nonatomic) SEL action;
// Minimum and maximum allowable tab width. The minimum width does not show
// the icon or the close button. The selected tab always has at least a close
// button so it has a different minimum width.
+ (float)minTabWidth;
+ (float)maxTabWidth;
+ (float)minSelectedTabWidth;
// The view associated with this controller, pre-casted as a TabView
- (TabView*)tabView;
// Closes the associated TabView by relaying the message to |target_| to
// perform the close.
- (IBAction)closeTab:(id)sender;
// Dispatches the command in the tag to the registered target object.
- (IBAction)commandDispatch:(id)sender;
// Replace the current icon view with the given view. |iconView| will be
// resized to the size of the current icon view.
- (void)setIconView:(NSView*)iconView;
- (NSView*)iconView;
// Called by the tabs to determine whether we are in rapid (tab) closure mode.
// In this mode, we handle clicks slightly differently due to animation.
// Ideally, tabs would know about their own animation and wouldn't need this.
- (BOOL)inRapidClosureMode;
// Update the title color to match the tabs current state.
- (void)updateTitleColor;
@end
@interface TabController(TestingAPI)
- (NSString*)toolTip;
- (int)iconCapacity;
- (BOOL)shouldShowIcon;
- (BOOL)shouldShowCloseButton;
@end // TabController(TestingAPI)
#endif // CHROME_BROWSER_COCOA_TAB_CONTROLLER_H_
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