task_manager_mac.h revision 21d179b334e59e9a3bfcaed4c4430bef1bc5759d 
1// Copyright (c) 2009 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_TASK_MANAGER_MAC_H_
6#define CHROME_BROWSER_UI_COCOA_TASK_MANAGER_MAC_H_
7#pragma once
8
9#import <Cocoa/Cocoa.h>
10#include <vector>
11
12#import "base/mac/cocoa_protocols.h"
13#include "base/scoped_nsobject.h"
14#include "chrome/browser/task_manager/task_manager.h"
15#include "chrome/browser/ui/cocoa/table_row_nsimage_cache.h"
16
17@class WindowSizeAutosaver;
18class SkBitmap;
19class TaskManagerMac;
20
21// This class is responsible for loading the task manager window and for
22// managing it.
23@interface TaskManagerWindowController :
24  NSWindowController<NSTableViewDataSource,
25                     NSTableViewDelegate> {
26 @private
27  IBOutlet NSTableView* tableView_;
28  IBOutlet NSButton* endProcessButton_;
29  TaskManagerMac* taskManagerObserver_;  // weak
30  TaskManager* taskManager_;  // weak
31  TaskManagerModel* model_;  // weak
32
33  scoped_nsobject<WindowSizeAutosaver> size_saver_;
34
35  // These contain a permutation of [0..|model_->ResourceCount() - 1|]. Used to
36  // implement sorting.
37  std::vector<int> viewToModelMap_;
38  std::vector<int> modelToViewMap_;
39
40  // Descriptor of the current sort column.
41  scoped_nsobject<NSSortDescriptor> currentSortDescriptor_;
42}
43
44// Creates and shows the task manager's window.
45- (id)initWithTaskManagerObserver:(TaskManagerMac*)taskManagerObserver;
46
47// Refreshes all data in the task manager table.
48- (void)reloadData;
49
50// Callback for "Stats for nerds" link.
51- (IBAction)statsLinkClicked:(id)sender;
52
53// Callback for "End process" button.
54- (IBAction)killSelectedProcesses:(id)sender;
55
56// Callback for double clicks on the table.
57- (void)selectDoubleClickedTab:(id)sender;
58@end
59
60@interface TaskManagerWindowController (TestingAPI)
61- (NSTableView*)tableView;
62@end
63
64// This class listens to task changed events sent by chrome.
65class TaskManagerMac : public TaskManagerModelObserver,
66                       public TableRowNSImageCache::Table {
67 public:
68  TaskManagerMac(TaskManager* task_manager);
69  virtual ~TaskManagerMac();
70
71  // TaskManagerModelObserver
72  virtual void OnModelChanged();
73  virtual void OnItemsChanged(int start, int length);
74  virtual void OnItemsAdded(int start, int length);
75  virtual void OnItemsRemoved(int start, int length);
76
77  // Called by the cocoa window controller when its window closes and the
78  // controller destroyed itself. Informs the model to stop updating.
79  void WindowWasClosed();
80
81  // TableRowNSImageCache::Table
82  virtual int RowCount() const;
83  virtual SkBitmap GetIcon(int r) const;
84
85  // Creates the task manager if it doesn't exist; otherwise, it activates the
86  // existing task manager window.
87  static void Show();
88
89  // Returns the TaskManager observed by |this|.
90  TaskManager* task_manager() { return task_manager_; }
91
92  // Lazily converts the image at the given row and caches it in |icon_cache_|.
93  NSImage* GetImageForRow(int row);
94
95  // Returns the cocoa object. Used for testing.
96  TaskManagerWindowController* cocoa_controller() { return window_controller_; }
97 private:
98  // The task manager.
99  TaskManager* const task_manager_;  // weak
100
101  // Our model.
102  TaskManagerModel* const model_;  // weak
103
104  // Controller of our window, destroys itself when the task manager window
105  // is closed.
106  TaskManagerWindowController* window_controller_;  // weak
107
108  // Caches favicons for all rows. Needs to be initalized after |model_|.
109  TableRowNSImageCache icon_cache_;
110
111  // An open task manager window. There can only be one open at a time. This
112  // is reset to NULL when the window is closed.
113  static TaskManagerMac* instance_;
114
115  DISALLOW_COPY_AND_ASSIGN(TaskManagerMac);
116};
117
118#endif  // CHROME_BROWSER_UI_COCOA_TASK_MANAGER_MAC_H_
119