Refactored out JS specific part of modal dialog stack into its own class, exp...

chrome/browser/app_modal_dialog.cc

 // 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/app_modal_dialog.h"
 
 #include "chrome/browser/app_modal_dialog_queue.h"
-#include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/notification_type.h"
-#include "ipc/ipc_message.h"
 
-AppModalDialog::AppModalDialog(JavaScriptMessageBoxClient* client,
-                               const std::wstring& title,
-                               int dialog_flags,
-                               const std::wstring& message_text,
-                               const std::wstring& default_prompt_text,
-                               bool display_suppress_checkbox,
-                               bool is_before_unload_dialog,
-                               IPC::Message* reply_msg)
+AppModalDialog::AppModalDialog(TabContents* tab_contents,
+                               const std::wstring& title)
     : dialog_(NULL),
-      client_(client),
-      tab_contents_(client_->AsTabContents()),
-      extension_host_(client_->AsExtensionHost()),
-      skip_this_dialog_(false),
+      tab_contents_(tab_contents),
       title_(title),
-      dialog_flags_(dialog_flags),
-      message_text_(message_text),
-      default_prompt_text_(default_prompt_text),
-      display_suppress_checkbox_(display_suppress_checkbox),
-      is_before_unload_dialog_(is_before_unload_dialog),
-      reply_msg_(reply_msg) {
-  InitNotifications();
-  DCHECK((tab_contents_ != NULL) != (extension_host_ != NULL));
+      skip_this_dialog_(false) {
 }
 
-void AppModalDialog::Observe(NotificationType type,
-                             const NotificationSource& source,
-                             const NotificationDetails& details) {
-  if (skip_this_dialog_)
-    return;
-
-  if (NotificationType::EXTENSION_HOST_DESTROYED == type &&
-      Details<ExtensionHost>(extension_host_) != details)
-    return;
-
-  // If we reach here, we know the notification is relevant to us, either
-  // because we're only observing applicable sources or because we passed the
-  // check above. Both of those indicate that we should ignore this dialog.
-  // Also clear the client, since it's now invalid.
-  skip_this_dialog_ = true;
-  client_ = NULL;
-  CloseModalDialog();
-}
-
-void AppModalDialog::InitNotifications() {
-  // Make sure we get relevant navigation notifications so we know when our
-  // parent contents will disappear or navigate to a different page.
-  if (tab_contents_) {
-    registrar_.Add(this, NotificationType::NAV_ENTRY_COMMITTED,
-                   Source<NavigationController>(&tab_contents_->controller()));
-    registrar_.Add(this, NotificationType::TAB_CONTENTS_DESTROYED,
-                   Source<TabContents>(tab_contents_));
-  } else if (extension_host_) {
-    // EXTENSION_HOST_DESTROYED uses the Profile as its source, but we care
-    // about the ExtensionHost (which is passed in the details).
-    registrar_.Add(this, NotificationType::EXTENSION_HOST_DESTROYED,
-                   NotificationService::AllSources());
-  } else {
-    NOTREACHED();
-  }
-}
 
 void AppModalDialog::ShowModalDialog() {
   // If the TabContents or ExtensionHost that created this dialog navigated
   // away or was destroyed before this dialog became visible, simply show the
   // next dialog if any.
   if (skip_this_dialog_) {
     Singleton<AppModalDialogQueue>()->ShowNextDialog();
     delete this;
     return;
   }
   if (tab_contents_)
     tab_contents_->Activate();
 
   CreateAndShowDialog();
 
   NotificationService::current()->Notify(
       NotificationType::APP_MODAL_DIALOG_SHOWN,
       Source<AppModalDialog>(this),
       NotificationService::NoDetails());
 }
 
-void AppModalDialog::OnCancel() {
-  // We need to do this before WM_DESTROY (WindowClosing()) as any parent frame
-  // will receive its activation messages before this dialog receives
-  // WM_DESTROY. The parent frame would then try to activate any modal dialogs
-  // that were still open in the ModalDialogQueue, which would send activation
-  // back to this one. The framework should be improved to handle this, so this
-  // is a temporary workaround.
-  Singleton<AppModalDialogQueue>()->ShowNextDialog();
-
-  if (!skip_this_dialog_) {
-    client_->OnMessageBoxClosed(reply_msg_, false, std::wstring());
-  }
-
-  Cleanup();
+void AppModalDialog::Cleanup() {
+  NotificationService::current()->Notify(
+      NotificationType::APP_MODAL_DIALOG_CLOSED,
+      Source<AppModalDialog>(this),
+      NotificationService::NoDetails());
 }
 
-void AppModalDialog::OnAccept(const std::wstring& prompt_text,
-                              bool suppress_js_messages) {
+void AppModalDialog::CompleteDialog() {
   Singleton<AppModalDialogQueue>()->ShowNextDialog();
-
-  if (!skip_this_dialog_) {
-    client_->OnMessageBoxClosed(reply_msg_, true, prompt_text);
-    if (suppress_js_messages)
-      client_->SetSuppressMessageBoxes(true);
-  }
-
-  Cleanup();
 }
 
-void AppModalDialog::OnClose() {
-  Cleanup();
-}
-
-void AppModalDialog::Cleanup() {
-  if (skip_this_dialog_) {
-    // We can't use the client_, because we might be in the process of
-    // destroying it.
-    if (tab_contents_)
-      tab_contents_->OnMessageBoxClosed(reply_msg_, false, L"");
-// The extension_host_ will always be a dirty pointer on OS X because the alert
-// window will cause the extension popup to close since it is resigning its key
-// state, destroying the host. http://crbug.com/29355
-#if !defined(OS_MACOSX)
-    else if (extension_host_)
-      extension_host_->OnMessageBoxClosed(reply_msg_, false, L"");
-    else
-      NOTREACHED();
-#endif
-  }
-  NotificationService::current()->Notify(
-    NotificationType::APP_MODAL_DIALOG_CLOSED,
-    Source<AppModalDialog>(this),
-    NotificationService::NoDetails());
-}