[mac] Implement a windowed extension install/permissions prompt.

chrome/browser/ui/cocoa/extensions/windowed_install_dialog_controller.mm

+// Copyright 2013 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 "chrome/browser/ui/cocoa/extensions/windowed_install_dialog_controller.h"
+
+#import "base/mac/sdk_forward_declarations.h"
+#include "base/message_loop/message_loop.h"
+#include "base/strings/sys_string_conversions.h"
+#import "chrome/browser/ui/cocoa/extensions/extension_install_view_controller.h"
+#include "ui/base/cocoa/window_size_constants.h"
+
+@interface WindowedInstallController
+    : NSWindowController<NSWindowDelegate> {
+ @private
+  base::scoped_nsobject<ExtensionInstallViewController> installViewController_;
+  WindowedInstallDialogController* dialogController_;  // Weak. Owns us.
+}
+
+@property(readonly, nonatomic) ExtensionInstallViewController* viewController;
+
+- (id)initWithNavigator:(content::PageNavigator*)navigator
+               delegate:(WindowedInstallDialogController*)delegate
+                 prompt:(const ExtensionInstallPrompt::Prompt&)prompt;
+
+@end
+
+WindowedInstallDialogController::WindowedInstallDialogController(
+    const ExtensionInstallPrompt::ShowParams& show_params,
+    ExtensionInstallPrompt::Delegate* delegate,
+    const ExtensionInstallPrompt::Prompt& prompt)
+    : delegate_(delegate) {
+  install_controller_.reset([[WindowedInstallController alloc]
+      initWithNavigator:show_params.navigator
+               delegate:this
+                 prompt:prompt]);
+  [[install_controller_ window] makeKeyAndOrderFront:nil];
+}
+
+WindowedInstallDialogController::~WindowedInstallDialogController() {
+  DCHECK(!install_controller_);
+  DCHECK(!delegate_);
+}
+
+void WindowedInstallDialogController::OnWindowClosing() {
+  install_controller_.reset();
+  if (delegate_) {
+    delegate_->InstallUIAbort(false);
+    delegate_ = NULL;
+  }
+  base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
+}
+
+ExtensionInstallViewController*
+WindowedInstallDialogController::GetViewController() {
+  return [install_controller_ viewController];
+}
+
+void WindowedInstallDialogController::InstallUIProceed() {
+  delegate_->InstallUIProceed();
+  delegate_ = NULL;
+  [[install_controller_ window] close];
+}
+
+void WindowedInstallDialogController::InstallUIAbort(bool user_initiated) {
+  delegate_->InstallUIAbort(user_initiated);
+  delegate_ = NULL;
+  [[install_controller_ window] close];
+}
+
+@implementation WindowedInstallController
+
+- (id)initWithNavigator:(content::PageNavigator*)navigator
+               delegate:(WindowedInstallDialogController*)delegate
+                 prompt:(const ExtensionInstallPrompt::Prompt&)prompt {
+  base::scoped_nsobject<NSWindow> controlledPanel(
+      [[NSPanel alloc] initWithContentRect:ui::kWindowSizeDeterminedLater
+                                 styleMask:NSTitledWindowMask
+                                   backing:NSBackingStoreBuffered
+                                     defer:NO]);
+  if ((self = [super initWithWindow:controlledPanel])) {
+    dialogController_ = delegate;
+    installViewController_.reset([[ExtensionInstallViewController alloc]
+        initWithNavigator:navigator
+                 delegate:delegate
+                   prompt:prompt]);
+    NSWindow* window = [self window];
+
+    // Ensure the window does not display behind the app launcher window, and is
+    // otherwise hard to lose behind other windows (since it is not modal).
+    [window setLevel:NSDockWindowLevel];
+
+    // Animate the window when ordered in, the same way as an NSAlert.
+    if ([window respondsToSelector:@selector(setAnimationBehavior:)])
+      [window setAnimationBehavior:NSWindowAnimationBehaviorAlertPanel];
+
+    [window setTitle:base::SysUTF16ToNSString(prompt.GetDialogTitle())];
+    NSRect viewFrame = [[installViewController_ view] frame];
+    [window setFrame:[window frameRectForContentRect:viewFrame]
+             display:NO];
+    [window setContentView:[installViewController_ view]];
+    [window setDelegate:self];
+    [window center];
+  }
+  return self;
+}
+
+- (ExtensionInstallViewController*)viewController {
+  return installViewController_;
+}
+
+- (void)windowWillClose:(NSNotification*)notification {
+  [[self window] setDelegate:nil];
+  dialogController_->OnWindowClosing();
+}
+
+@end