Some scaffolding for the task manager.

BUG=13156
TEST=Connect view->task manager to first responder's commandDispatch: and give the menu item the tag 40005. Now clicking that menu item should bring up a completely unfunctional task manager window (but it has a localized title and button).

Review URL: http://codereview.chromium.org/200094

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@26278 0039d316-1c4b-4281-b951-d872f2087c98

7 files changed, 864 insertions, 1 deletions

diff --git a/base/process_util_mac.mm b/base/process_util_mac.mm
index da0b200..183fe31 100644
--- a/base/process_util_mac.mm
+++ b/base/process_util_mac.mm
@@ -199,6 +199,17 @@ size_t ProcessMetrics::GetPeakWorkingSetSize() const {
   return 0;
 }
 
+size_t ProcessMetrics::GetPrivateBytes() const {
+  return 0;
+}
+
+void ProcessMetrics::GetCommittedKBytes(CommittedKBytes* usage) const {
+}
+
+bool ProcessMetrics::GetWorkingSetKBytes(WorkingSetKBytes* ws_usage) const {
+  return false;
+}
+
 // ------------------------------------------------------------------------
 
 }  // namespace base
diff --git a/chrome/app/nibs/TaskManager.xib b/chrome/app/nibs/TaskManager.xib
new file mode 100644
index 0000000..375598e
--- /dev/null
+++ b/chrome/app/nibs/TaskManager.xib
@@ -0,0 +1,686 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<archive type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="7.03">
+	<data>
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+		<string key="IBDocument.HIToolboxVersion">353.00</string>
+		<object class="NSMutableArray" key="IBDocument.EditedObjectIDs">
+			<bool key="EncodedWithXMLCoder">YES</bool>
+			<integer value="2"/>
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+		<object class="NSArray" key="IBDocument.PluginDependencies">
+			<bool key="EncodedWithXMLCoder">YES</bool>
+			<string>com.apple.InterfaceBuilder.CocoaPlugin</string>
+		</object>
+		<object class="NSMutableDictionary" key="IBDocument.Metadata">
+			<bool key="EncodedWithXMLCoder">YES</bool>
+			<object class="NSArray" key="dict.sortedKeys">
+				<bool key="EncodedWithXMLCoder">YES</bool>
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+			<object class="NSMutableArray" key="dict.values">
+				<bool key="EncodedWithXMLCoder">YES</bool>
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+			<bool key="EncodedWithXMLCoder">YES</bool>
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+				<string key="NSClassName">TaskManagerWindowController</string>
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+				<string key="NSClassName">FirstResponder</string>
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+				<int key="NSWTFlags">536870912</int>
+				<string key="NSWindowTitle">^IDS_TASK_MANAGER_TITLE</string>
+				<string key="NSWindowClass">NSWindow</string>
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+					<bool key="EncodedWithXMLCoder">YES</bool>
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+				<object class="NSMutableArray" key="dict.values">
+					<bool key="EncodedWithXMLCoder">YES</bool>
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+						<string key="majorKey">IBProjectSource</string>
+						<string key="minorKey">browser/cocoa/ui_localizer.h</string>
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+					<string key="className">GTMUILocalizer</string>
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+							<bool key="EncodedWithXMLCoder">YES</bool>
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+							<string>owner_</string>
+							<string>yetAnotherObjectToLocalize_</string>
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+							<bool key="EncodedWithXMLCoder">YES</bool>
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+							<string>id</string>
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+						<string key="majorKey">IBProjectSource</string>
+						<string key="minorKey">../third_party/GTM/AppKit/GTMUILocalizer.h</string>
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+				</object>
+				<object class="IBPartialClassDescription">
+					<string key="className">GTMUILocalizerAndLayoutTweaker</string>
+					<string key="superclassName">NSObject</string>
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+						<bool key="EncodedWithXMLCoder">YES</bool>
+						<object class="NSMutableArray" key="dict.sortedKeys">
+							<bool key="EncodedWithXMLCoder">YES</bool>
+							<string>localizerOwner_</string>
+							<string>localizer_</string>
+							<string>uiObject_</string>
+						</object>
+						<object class="NSMutableArray" key="dict.values">
+							<bool key="EncodedWithXMLCoder">YES</bool>
+							<string>id</string>
+							<string>GTMUILocalizer</string>
+							<string>id</string>
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+					</object>
+					<object class="IBClassDescriptionSource" key="sourceIdentifier" id="1070061944">
+						<string key="majorKey">IBProjectSource</string>
+						<string key="minorKey">../third_party/GTM/AppKit/GTMUILocalizerAndLayoutTweaker.h</string>
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+				</object>
+				<object class="IBPartialClassDescription">
+					<string key="className">GTMWidthBasedTweaker</string>
+					<string key="superclassName">NSView</string>
+					<object class="NSMutableDictionary" key="outlets">
+						<bool key="EncodedWithXMLCoder">YES</bool>
+						<object class="NSMutableArray" key="dict.sortedKeys">
+							<bool key="EncodedWithXMLCoder">YES</bool>
+							<string>viewToResize_</string>
+							<string>viewToSlideAndResize_</string>
+							<string>viewToSlide_</string>
+						</object>
+						<object class="NSMutableArray" key="dict.values">
+							<bool key="EncodedWithXMLCoder">YES</bool>
+							<string>id</string>
+							<string>NSView</string>
+							<string>NSView</string>
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+					</object>
+					<reference key="sourceIdentifier" ref="1070061944"/>
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+				<object class="IBPartialClassDescription">
+					<string key="className">NSObject</string>
+					<object class="IBClassDescriptionSource" key="sourceIdentifier">
+						<string key="majorKey">IBProjectSource</string>
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+				</object>
+				<object class="IBPartialClassDescription">
+					<string key="className">NSObject</string>
+					<object class="IBClassDescriptionSource" key="sourceIdentifier">
+						<string key="majorKey">IBProjectSource</string>
+						<string key="minorKey">browser/cocoa/tab_strip_model_observer_bridge.h</string>
+					</object>
+				</object>
+				<object class="IBPartialClassDescription">
+					<string key="className">TaskManagerWindowController</string>
+					<string key="superclassName">NSWindowController</string>
+					<object class="IBClassDescriptionSource" key="sourceIdentifier">
+						<string key="majorKey">IBProjectSource</string>
+						<string key="minorKey">browser/cocoa/task_manager_mac.h</string>
+					</object>
+				</object>
+			</object>
+		</object>
+		<int key="IBDocument.localizationMode">0</int>
+		<string key="IBDocument.LastKnownRelativeProjectPath">../../chrome.xcodeproj</string>
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+</archive>
diff --git a/chrome/browser/cocoa/browser_window_cocoa.mm b/chrome/browser/cocoa/browser_window_cocoa.mm
index b51ab8c..73a74a0 100644
--- a/chrome/browser/cocoa/browser_window_cocoa.mm
+++ b/chrome/browser/cocoa/browser_window_cocoa.mm
@@ -11,6 +11,7 @@
 #import "chrome/browser/cocoa/clear_browsing_data_controller.h"
 #import "chrome/browser/cocoa/download_shelf_controller.h"
 #include "chrome/browser/cocoa/page_info_window_mac.h"
+#include "chrome/browser/cocoa/task_manager_mac.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/download/download_shelf.h"
 #include "chrome/common/notification_service.h"
@@ -201,7 +202,7 @@ void BrowserWindowCocoa::ShowAboutChromeDialog() {
 }
 
 void BrowserWindowCocoa::ShowTaskManager() {
-  NOTIMPLEMENTED();
+  TaskManagerMac::Show();
 }
 
 void BrowserWindowCocoa::ShowBookmarkManager() {
diff --git a/chrome/browser/cocoa/task_manager_mac.h b/chrome/browser/cocoa/task_manager_mac.h
new file mode 100644
index 0000000..dbf34f9
--- /dev/null
+++ b/chrome/browser/cocoa/task_manager_mac.h
@@ -0,0 +1,54 @@
+// 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_TASK_MANAGER_MAC_H_
+#define CHROME_BROWSER_COCOA_TASK_MANAGER_MAC_H_
+
+#import <Cocoa/Cocoa.h>
+#include "base/scoped_nsobject.h"
+#include "chrome/browser/task_manager.h"
+
+// This class is responsible for loading the task manager window and for
+// managing it.
+@interface TaskManagerWindowController : NSWindowController {
+}
+
+// Creates and shows the task manager's window.
+- (id)init;
+@end
+
+// This class listens to task changed events sent by chrome.
+class TaskManagerMac : public TaskManagerModelObserver {
+ public:
+  TaskManagerMac();
+  virtual ~TaskManagerMac();
+
+  // TaskManagerModelObserver
+  virtual void OnModelChanged();
+  virtual void OnItemsChanged(int start, int length);
+  virtual void OnItemsAdded(int start, int length);
+  virtual void OnItemsRemoved(int start, int length);
+
+  // Creates the task manager if it doesn't exist; otherwise, it activates the
+  // existing task manager window.
+  static void Show();
+
+ private:
+  // The task manager.
+  TaskManager* task_manager_;  // weak
+
+  // Our model.
+  TaskManagerModel* model_;  // weak
+
+  // Controller of our window.
+  scoped_nsobject<TaskManagerWindowController> window_controller_;
+
+  // An open task manager window. There can only be one open at a time. This
+  // is reset to NULL when the window is closed.
+  static TaskManagerMac* instance_;
+
+  DISALLOW_COPY_AND_ASSIGN(TaskManagerMac);
+};
+
+#endif  // CHROME_BROWSER_COCOA_TASK_MANAGER_MAC_H_
diff --git a/chrome/browser/cocoa/task_manager_mac.mm b/chrome/browser/cocoa/task_manager_mac.mm
new file mode 100644
index 0000000..b282dad
--- /dev/null
+++ b/chrome/browser/cocoa/task_manager_mac.mm
@@ -0,0 +1,74 @@
+// 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.
+
+#include "chrome/browser/cocoa/task_manager_mac.h"
+
+#include <algorithm>
+#include <vector>
+
+#include "base/mac_util.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// TaskManagerWindowController implementation:
+
+@implementation TaskManagerWindowController
+
+- (id)init {
+  NSString* nibpath = [mac_util::MainAppBundle()
+                        pathForResource:@"TaskManager"
+                                 ofType:@"nib"];
+  if ((self = [super initWithWindowNibPath:nibpath owner:self])) {
+    [[self window] makeKeyAndOrderFront:self];
+  }
+  return self;
+}
+
+@end
+
+////////////////////////////////////////////////////////////////////////////////
+// TaskManagerMac implementation:
+
+TaskManagerMac::TaskManagerMac()
+  : task_manager_(TaskManager::GetInstance()),
+    model_(TaskManager::GetInstance()->model()) {
+  window_controller_.reset([[TaskManagerWindowController alloc] init]);
+}
+
+// static
+TaskManagerMac* TaskManagerMac::instance_ = NULL;
+
+TaskManagerMac::~TaskManagerMac() {
+  task_manager_->OnWindowClosed();
+  model_->RemoveObserver(this);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TaskManagerMac, TaskManagerModelObserver implementation:
+
+void TaskManagerMac::OnModelChanged() {
+}
+
+void TaskManagerMac::OnItemsChanged(int start, int length) {
+}
+
+void TaskManagerMac::OnItemsAdded(int start, int length) {
+}
+
+void TaskManagerMac::OnItemsRemoved(int start, int length) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TaskManagerMac, public:
+
+// static
+void TaskManagerMac::Show() {
+  if (instance_) {
+    // If there's a Task manager window open already, just activate it.
+    [[instance_->window_controller_ window]
+        makeKeyAndOrderFront:instance_->window_controller_];
+  } else {
+    instance_ = new TaskManagerMac;
+    instance_->model_->StartUpdating();
+  }
+}
diff --git a/chrome/browser/cocoa/task_manager_mac_unittest.mm b/chrome/browser/cocoa/task_manager_mac_unittest.mm
new file mode 100644
index 0000000..2bb73ce
--- /dev/null
+++ b/chrome/browser/cocoa/task_manager_mac_unittest.mm
@@ -0,0 +1,32 @@
+// 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.
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/scoped_nsobject.h"
+#import "chrome/browser/cocoa/task_manager_mac.h"
+#import "chrome/browser/cocoa/cocoa_test_helper.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
+
+namespace {
+
+class TaskManagerWindowControllerTest : public PlatformTest {
+ public:
+  TaskManagerWindowControllerTest() {
+    controller_.reset([[TaskManagerWindowController alloc] init]);
+  }
+
+  scoped_nsobject<TaskManagerWindowController> controller_;
+  CocoaTestHelper cocoa_helper_;  // Inits Cocoa, creates window, etc...
+};
+
+// Test creation, to ensure nothing leaks or crashes
+TEST_F(TaskManagerWindowControllerTest, Init) {
+}
+
+// TODO(thakis): Add tests for more methods as they become implemented
+// (TaskManager::Show() etc).
+
+}  // namespace
diff --git a/chrome/chrome.gyp b/chrome/chrome.gyp
index 7dc3b72..e3ce12c 100644
--- a/chrome/chrome.gyp
+++ b/chrome/chrome.gyp
@@ -1035,6 +1035,8 @@
         'browser/cocoa/tab_view.mm',
         'browser/cocoa/tab_window_controller.h',
         'browser/cocoa/tab_window_controller.mm',
+        'browser/cocoa/task_manager_mac.h',
+        'browser/cocoa/task_manager_mac.mm',
         'browser/cocoa/throbber_view.h',
         'browser/cocoa/throbber_view.mm',
         'browser/cocoa/toolbar_button_cell.h',
@@ -2363,6 +2365,7 @@
                   'app/nibs/MainMenu.xib',
                   'app/nibs/SaveAccessoryView.xib',
                   'app/nibs/TabView.xib',
+                  'app/nibs/TaskManager.xib',
                   'app/nibs/Toolbar.xib',
                 ],
               },
@@ -3053,6 +3056,7 @@
         'app/nibs/SaveAccessoryView.xib',
         'app/nibs/TabContents.xib',
         'app/nibs/TabView.xib',
+        'app/nibs/TaskManager.xib',
         'app/nibs/Toolbar.xib',
         'app/theme/alert_small.png',
         'app/theme/back_Template.pdf',
@@ -4077,6 +4081,7 @@
         'browser/cocoa/tab_strip_controller_unittest.mm',
         'browser/cocoa/tab_strip_view_unittest.mm',
         'browser/cocoa/tab_view_unittest.mm',
+        'browser/cocoa/task_manager_mac_unittest.mm',
         'browser/cocoa/test_event_utils.h',
         'browser/cocoa/test_event_utils.mm',
         'browser/cocoa/throbber_view_unittest.mm',