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// Copyright (c) 2012 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.
#import <Cocoa/Cocoa.h>
#include "base/memory/scoped_ptr.h"
#include "components/bubble/bubble_reference.h"
@class InfoBubbleView;
class TabStripModelObserverBridge;
// Base class for bubble controllers. Manages a xib that contains an
// InfoBubbleWindow which contains an InfoBubbleView. Contains code to close
// the bubble window on clicks outside of the window, and the like.
// To use this class:
// 1. Create a new xib that contains a window. Change the window's class to
// InfoBubbleWindow. Give it a child view that autosizes to the window's full
// size, give it class InfoBubbleView. Make the controller the window's
// delegate.
// 2. Create a subclass of BaseBubbleController.
// 3. Change the xib's File Owner to your subclass.
// 4. Hook up the File Owner's |bubble_| to the InfoBubbleView in the xib.
@interface BaseBubbleController : NSWindowController<NSWindowDelegate> {
@private
NSWindow* parentWindow_; // weak
NSPoint anchor_;
// Offset of the anchor point relative to the parent window's upper-left-hand
// corner. Used to ensure that if the parent window is resized with the bubble
// remaining visible, the bubble continues to be anchored correctly.
NSPoint anchorOffset_;
IBOutlet InfoBubbleView* bubble_; // to set arrow position
// Bridge for tab change notifications.
scoped_ptr<TabStripModelObserverBridge> tabStripObserverBridge_;
// Non-nil only on 10.7+. Both weak, owned by AppKit.
// A local event tap that will dismiss the bubble when a click is delivered
// outside the window. This is needed because the window shares first
// responder with its parent.
id eventTap_;
// A notification observer that gets triggered when any window resigns key.
id resignationObserver_;
// The controlled window should be the key window when it's opened. True by
// default.
BOOL shouldOpenAsKeyWindow_;
// The bubble window should close if it (or its parent) resigns key status.
BOOL shouldCloseOnResignKey_;
BubbleReference bubbleReference_;
}
@property(nonatomic, assign) NSWindow* parentWindow;
// The point in base screen coordinates at which the bubble should open and the
// arrow tip points.
@property(nonatomic, assign) NSPoint anchorPoint;
@property(nonatomic, readonly) InfoBubbleView* bubble;
@property(nonatomic, assign) BOOL shouldOpenAsKeyWindow;
// Controls if the bubble auto-closes if the user clicks outside the bubble.
@property(nonatomic, assign) BOOL shouldCloseOnResignKey;
// A reference for bubbles that are managed by the BubbleManager.
@property(nonatomic, assign) BubbleReference bubbleReference;
// Creates a bubble. |nibPath| is just the basename, e.g. @"FirstRunBubble".
// |anchoredAt| is in screen space. You need to call -showWindow: to make the
// bubble visible. It will autorelease itself when the user dismisses the
// bubble.
// This is the designated initializer.
- (id)initWithWindowNibPath:(NSString*)nibPath
parentWindow:(NSWindow*)parentWindow
anchoredAt:(NSPoint)anchoredAt;
// Creates a bubble. |nibPath| is just the basename, e.g. @"FirstRunBubble".
// |view| must be in a window. The bubble will point at |offset| relative to
// |view|'s lower left corner. You need to call -showWindow: to make the
// bubble visible. It will autorelease itself when the user dismisses the
// bubble.
- (id)initWithWindowNibPath:(NSString*)nibPath
relativeToView:(NSView*)view
offset:(NSPoint)offset;
// For subclasses that do not load from a XIB, this will simply set the instance
// variables appropriately. This will also replace the |-[self window]|'s
// contentView with an instance of InfoBubbleView.
- (id)initWithWindow:(NSWindow*)theWindow
parentWindow:(NSWindow*)parentWindow
anchoredAt:(NSPoint)anchoredAt;
// Creates an autoreleased horizontal separator view with a given frame. The
// height of the frame is ignored.
- (NSBox*)horizontalSeparatorWithFrame:(NSRect)frame;
// Creates an autoreleased vertical separator view with a given frame. The
// width of frame is ignored.
- (NSBox*)verticalSeparatorWithFrame:(NSRect)frame;
@end
// Methods for use by subclasses.
@interface BaseBubbleController (Protected)
// Registers event taps *after* the window is shown so that the bubble is
// dismissed when it resigns key. This only needs to be called if
// |-showWindow:| is overriden and does not call super. Noop on OSes <10.7.
- (void)registerKeyStateEventTap;
@end
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