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// Copyright (c) 2011 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_UI_COCOA_TABS_TAB_VIEW_H_
#define CHROME_BROWSER_UI_COCOA_TABS_TAB_VIEW_H_
#include <ApplicationServices/ApplicationServices.h>
#import <Cocoa/Cocoa.h>
#include "base/mac/scoped_cftyperef.h"
#include "base/mac/scoped_nsobject.h"
#import "chrome/browser/ui/cocoa/hover_close_button.h"
#import "chrome/browser/ui/cocoa/themed_window.h"
#include "chrome/browser/ui/tabs/tab_utils.h"
namespace tabs {
// When the window doesn't have focus then we want to draw the button with a
// slightly lighter color. We do this by just reducing the alpha.
const CGFloat kImageNoFocusAlpha = 0.65;
// The default COLOR_TAB_TEXT color.
const SkColor kDefaultTabTextColor = SkColorSetARGB(0xA0, 0x00, 0x00, 0x00);
} // namespace tabs
@class TabController, TabWindowController, GTMFadeTruncatingTextFieldCell;
// A view that handles the event tracking (clicking and dragging) for a tab
// on the tab strip. Relies on an associated TabController to provide a
// target/action for selecting the tab.
@interface TabView : NSControl<ThemedWindowDrawing> {
@private
TabController* controller_;
base::scoped_nsobject<NSTextField> titleView_;
GTMFadeTruncatingTextFieldCell* titleViewCell_; // weak
// TODO(rohitrao): Add this button to a CoreAnimation layer so we can fade it
// in and out on mouseovers.
HoverCloseButton* closeButton_; // Weak.
BOOL closing_;
BOOL isMouseInside_; // Is the mouse hovering over?
CGFloat hoverAlpha_; // How strong the hover glow is.
NSTimeInterval hoverHoldEndTime_; // When the hover glow will begin dimming.
NSTimeInterval lastGlowUpdate_; // Time the glow was last updated.
NSPoint hoverPoint_; // Current location of hover in view coords.
// The location of the current mouseDown event in window coordinates.
NSPoint mouseDownPoint_;
NSCellStateValue state_;
// The tool tip text for this tab view.
base::scoped_nsobject<NSString> toolTipText_;
}
@property(readonly, nonatomic) BOOL isActiveTab;
@property(retain, nonatomic) NSString* title;
@property(assign, nonatomic) NSRect titleFrame;
@property(retain, nonatomic) NSColor* titleColor;
@property(assign, nonatomic) BOOL titleHidden;
// The state affects how the tab will be drawn.
// NSOnState -> active
// NSMixedState -> selected
// NSOffState -> none
@property(assign, nonatomic) NSCellStateValue state;
@property(assign, nonatomic) CGFloat hoverAlpha;
// Determines if the tab is in the process of animating closed. It may still
// be visible on-screen, but should not respond to/initiate any events. Upon
// setting to NO, clears the target/action of the close button to prevent
// clicks inside it from sending messages.
@property(assign, nonatomic, getter=isClosing) BOOL closing;
// The tool tip text for this tab view.
@property(copy, nonatomic) NSString* toolTipText;
// Designated initializer.
- (id)initWithFrame:(NSRect)frame
controller:(TabController*)controller
closeButton:(HoverCloseButton*)closeButton;
// Enables/Disables tracking regions for the tab.
- (void)setTrackingEnabled:(BOOL)enabled;
// Returns the width of the largest part of the tab that is available for the
// user to click to select/activate the tab.
- (int)widthOfLargestSelectableRegion;
// Returns the Material Design color of the icons. Used by the "x" and the
// default favicon.
- (SkColor)iconColor;
// Returns the Material Design color of the alert indicator.
- (SkColor)alertIndicatorColorForState:(TabAlertState)state;
// Called when systemwide accessibility options change.
- (void)accessibilityOptionsDidChange:(id)ignored;
@end
// The TabController |controller_| is not the only owner of this view. If the
// controller is released before this view, then we could be hanging onto a
// garbage pointer. To prevent this, the TabController uses this interface to
// clear the |controller_| pointer when it is dying.
@interface TabView (TabControllerInterface)
- (void)setController:(TabController*)controller;
- (CALayer*)maskLayerWithPadding:(int)padding;
@end
#endif // CHROME_BROWSER_UI_COCOA_TABS_TAB_VIEW_H_