1 // Copyright (c) 2012 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.
5 #import "chrome/browser/ui/cocoa/hung_renderer_controller.h"
7 #import <Cocoa/Cocoa.h>
9 #include "base/mac/bundle_locations.h"
10 #include "base/mac/mac_util.h"
11 #include "base/strings/sys_string_conversions.h"
12 #include "chrome/browser/favicon/favicon_tab_helper.h"
13 #include "chrome/browser/ui/browser_dialogs.h"
14 #import "chrome/browser/ui/cocoa/multi_key_equivalent_button.h"
15 #import "chrome/browser/ui/cocoa/tab_contents/favicon_util_mac.h"
16 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
17 #include "chrome/browser/ui/tab_contents/tab_contents_iterator.h"
18 #include "chrome/common/logging_chrome.h"
19 #include "content/public/browser/render_process_host.h"
20 #include "content/public/browser/render_view_host.h"
21 #include "content/public/browser/web_contents.h"
22 #include "content/public/common/result_codes.h"
23 #include "grit/chromium_strings.h"
24 #include "grit/generated_resources.h"
25 #include "grit/theme_resources.h"
26 #include "grit/ui_resources.h"
27 #include "skia/ext/skia_utils_mac.h"
28 #include "third_party/google_toolbox_for_mac/src/AppKit/GTMUILocalizerAndLayoutTweaker.h"
29 #include "ui/base/l10n/l10n_util_mac.h"
30 #include "ui/base/resource/resource_bundle.h"
31 #include "ui/gfx/image/image.h"
33 using content::WebContents;
36 // We only support showing one of these at a time per app. The
37 // controller owns itself and is released when its window is closed.
38 HungRendererController* g_instance = NULL;
41 class WebContentsObserverBridge : public content::WebContentsObserver {
43 WebContentsObserverBridge(WebContents* web_contents,
44 HungRendererController* controller)
45 : content::WebContentsObserver(web_contents),
46 controller_(controller) {
50 // WebContentsObserver overrides:
51 virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE {
52 [controller_ renderProcessGone];
54 virtual void WebContentsDestroyed(WebContents* tab) OVERRIDE {
55 [controller_ renderProcessGone];
59 HungRendererController* controller_; // weak
61 DISALLOW_COPY_AND_ASSIGN(WebContentsObserverBridge);
64 @implementation HungRendererController
66 - (id)initWithWindowNibName:(NSString*)nibName {
67 NSString* nibpath = [base::mac::FrameworkBundle() pathForResource:nibName
69 self = [super initWithWindowNibPath:nibpath owner:self];
71 [tableView_ setDataSource:self];
78 [tableView_ setDataSource:nil];
79 [tableView_ setDelegate:nil];
80 [killButton_ setTarget:nil];
81 [waitButton_ setTarget:nil];
85 - (void)awakeFromNib {
87 ResourceBundle& rb = ResourceBundle::GetSharedInstance();
88 NSImage* backgroundImage =
89 rb.GetNativeImageNamed(IDR_FROZEN_TAB_ICON).ToNSImage();
90 [imageView_ setImage:backgroundImage];
92 // Make the message fit.
93 CGFloat messageShift =
94 [GTMUILocalizerAndLayoutTweaker sizeToFitFixedWidthTextField:messageView_];
96 // Move the graphic up to be top even with the message.
97 NSRect graphicFrame = [imageView_ frame];
98 graphicFrame.origin.y += messageShift;
99 [imageView_ setFrame:graphicFrame];
101 // Make the window taller to fit everything.
102 NSSize windowDelta = NSMakeSize(0, messageShift);
103 [GTMUILocalizerAndLayoutTweaker
104 resizeWindowWithoutAutoResizingSubViews:[self window]
107 // Make the "wait" button respond to additional keys. By setting this to
108 // @"\e", it will respond to both Esc and Command-. (period).
109 KeyEquivalentAndModifierMask key;
110 key.charCode = @"\e";
111 [waitButton_ addKeyEquivalent:key];
114 - (IBAction)kill:(id)sender {
116 base::KillProcess(hungContents_->GetRenderProcessHost()->GetHandle(),
117 content::RESULT_CODE_HUNG, false);
118 // Cannot call performClose:, because the close button is disabled.
122 - (IBAction)wait:(id)sender {
123 if (hungContents_ && hungContents_->GetRenderViewHost())
124 hungContents_->GetRenderViewHost()->RestartHangMonitorTimeout();
125 // Cannot call performClose:, because the close button is disabled.
129 - (NSInteger)numberOfRowsInTableView:(NSTableView *)aTableView {
130 return [hungTitles_ count];
133 - (id)tableView:(NSTableView*)aTableView
134 objectValueForTableColumn:(NSTableColumn*)column
135 row:(NSInteger)rowIndex {
136 return [NSNumber numberWithInt:NSOffState];
139 - (NSCell*)tableView:(NSTableView*)tableView
140 dataCellForTableColumn:(NSTableColumn*)tableColumn
141 row:(NSInteger)rowIndex {
142 NSCell* cell = [tableColumn dataCellForRow:rowIndex];
144 if ([[tableColumn identifier] isEqualToString:@"title"]) {
145 DCHECK([cell isKindOfClass:[NSButtonCell class]]);
146 NSButtonCell* buttonCell = static_cast<NSButtonCell*>(cell);
147 [buttonCell setTitle:[hungTitles_ objectAtIndex:rowIndex]];
148 [buttonCell setImage:[hungFavicons_ objectAtIndex:rowIndex]];
149 [buttonCell setRefusesFirstResponder:YES]; // Don't push in like a button.
150 [buttonCell setHighlightsBy:NSNoCellMask];
155 - (void)windowWillClose:(NSNotification*)notification {
156 // We have to reset g_instance before autoreleasing the window,
157 // because we want to avoid reusing the same dialog if someone calls
158 // chrome::ShowHungRendererDialog() between the autorelease call and the
162 // Prevent kills from happening after close if the user had the
163 // button depressed just when new activity was detected.
164 hungContents_ = NULL;
169 // TODO(shess): This could observe all of the tabs referenced in the
170 // loop, updating the dialog and keeping it up so long as any remain.
171 // Tabs closed by their renderer will close the dialog (that's
172 // activity!), so it would not add much value. Also, the views
173 // implementation only monitors the initiating tab.
174 - (void)showForWebContents:(WebContents*)contents {
176 hungContents_ = contents;
177 hungContentsObserver_.reset(new WebContentsObserverBridge(contents, self));
178 base::scoped_nsobject<NSMutableArray> titles([[NSMutableArray alloc] init]);
179 base::scoped_nsobject<NSMutableArray> favicons([[NSMutableArray alloc] init]);
180 for (TabContentsIterator it; !it.done(); it.Next()) {
181 if (it->GetRenderProcessHost() == hungContents_->GetRenderProcessHost()) {
182 base::string16 title = it->GetTitle();
184 title = CoreTabHelper::GetDefaultTitle();
185 [titles addObject:base::SysUTF16ToNSString(title)];
186 [favicons addObject:mac::FaviconForWebContents(*it)];
189 hungTitles_.reset([titles copy]);
190 hungFavicons_.reset([favicons copy]);
191 [tableView_ reloadData];
193 [[self window] center];
194 [self showWindow:self];
197 - (void)endForWebContents:(WebContents*)contents {
199 DCHECK(hungContents_);
200 if (hungContents_ && hungContents_->GetRenderProcessHost() ==
201 contents->GetRenderProcessHost()) {
202 // Cannot call performClose:, because the close button is disabled.
207 - (void)renderProcessGone {
208 // Cannot call performClose:, because the close button is disabled.
214 @implementation HungRendererController (JustForTesting)
215 - (NSButton*)killButton {
219 - (MultiKeyEquivalentButton*)waitButton {
226 void ShowHungRendererDialog(WebContents* contents) {
227 if (!logging::DialogsAreSuppressed()) {
229 g_instance = [[HungRendererController alloc]
230 initWithWindowNibName:@"HungRendererDialog"];
231 [g_instance showForWebContents:contents];
235 void HideHungRendererDialog(WebContents* contents) {
236 if (!logging::DialogsAreSuppressed() && g_instance)
237 [g_instance endForWebContents:contents];
240 } // namespace chrome