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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_HUNG_RENDERER_CONTROLLER_H_
#define CHROME_BROWSER_UI_COCOA_HUNG_RENDERER_CONTROLLER_H_
#pragma once
// A controller for the Mac hung renderer dialog window. Only one
// instance of this controller can exist at any time, although a given
// controller is destroyed when its window is closed.
//
// The dialog itself displays a list of frozen tabs, all of which
// share a render process. Since there can only be a single dialog
// open at a time, if showForWebContents is called for a different
// tab, the dialog is repurposed to show a warning for the new tab.
//
// The caller is required to call endForWebContents before deleting
// any WebContents object.
#import <Cocoa/Cocoa.h>
#import "base/mac/cocoa_protocols.h"
#import "base/memory/scoped_nsobject.h"
#import "base/memory/scoped_ptr.h"
@class MultiKeyEquivalentButton;
class WebContentsObserverBridge;
namespace content {
class WebContents;
}
@interface HungRendererController : NSWindowController<NSTableViewDataSource> {
@private
IBOutlet MultiKeyEquivalentButton* waitButton_;
IBOutlet NSButton* killButton_;
IBOutlet NSTableView* tableView_;
IBOutlet NSImageView* imageView_;
IBOutlet NSTextField* messageView_;
// The WebContents for which this dialog is open. Should never be
// NULL while this dialog is open.
content::WebContents* hungContents_;
// Observes |hungContents_| in case it closes while the panel is up.
scoped_ptr<WebContentsObserverBridge> hungContentsObserver_;
// Backing data for |tableView_|. Titles of each WebContents that
// shares a renderer process with |hungContents_|.
scoped_nsobject<NSArray> hungTitles_;
// Favicons of each WebContents that shares a renderer process with
// |hungContents_|.
scoped_nsobject<NSArray> hungFavicons_;
}
// Kills the hung renderers.
- (IBAction)kill:(id)sender;
// Waits longer for the renderers to respond.
- (IBAction)wait:(id)sender;
// Modifies the dialog to show a warning for the given tab contents.
// The dialog will contain a list of all tabs that share a renderer
// process with |contents|. The caller must not delete any tab
// contents without first calling endForWebContents.
- (void)showForWebContents:(content::WebContents*)contents;
// Notifies the dialog that |contents| is either responsive or closed.
// If |contents| shares the same render process as the tab contents
// this dialog was created for, this function will close the dialog.
// If |contents| has a different process, this function does nothing.
- (void)endForWebContents:(content::WebContents*)contents;
// Called by |hungContentsObserver_| to indicate that |hungContents_|
// has gone away.
- (void)renderViewGone;
@end // HungRendererController
@interface HungRendererController (JustForTesting)
- (NSButton*)killButton;
- (MultiKeyEquivalentButton*)waitButton;
@end
#endif // CHROME_BROWSER_UI_COCOA_HUNG_RENDERER_CONTROLLER_H_
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