Implement window.alert() and its cousins for extensions.

BUG=12126
TEST=put a window.prompt() in a background page, a browser action, and a page action.
  Make sure it gets the result back correctly.  Also make sure it still works when
  called from a web page.
Review URL: http://codereview.chromium.org/341089

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@31110 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 12 insertions, 5 deletions

diff --git a/chrome/browser/app_modal_dialog.h b/chrome/browser/app_modal_dialog.h
index 8d44d64..8263565 100644
--- a/chrome/browser/app_modal_dialog.h
+++ b/chrome/browser/app_modal_dialog.h
@@ -21,7 +21,7 @@ typedef GtkWidget* NativeDialog;
 typedef void* NativeDialog;
 #endif
 
-class TabContents;
+class JavaScriptMessageBoxClient;
 namespace IPC {
 class Message;
 }
@@ -33,7 +33,7 @@ class AppModalDialog : public NotificationObserver {
  public:
   // A union of data necessary to determine the type of message box to
   // show.  |dialog_flags| is a MessageBox flag.
-  AppModalDialog(TabContents* tab_contents,
+  AppModalDialog(JavaScriptMessageBoxClient* client,
                  const std::wstring& title,
                  int dialog_flags,
                  const std::wstring& message_text,
@@ -63,8 +63,8 @@ class AppModalDialog : public NotificationObserver {
 
   /////////////////////////////////////////////////////////////////////////////
   // Getters so NativeDialog can get information about the message box.
-  TabContents* tab_contents() {
-    return tab_contents_;
+  JavaScriptMessageBoxClient* client() {
+    return client_;
   }
   int dialog_flags() {
     return dialog_flags_;
@@ -103,8 +103,15 @@ class AppModalDialog : public NotificationObserver {
   // A reference to the platform native dialog box.
   NativeDialog dialog_;
 
+  // An implementation of the client interface to provide supporting methods
+  // and receive results.
+  JavaScriptMessageBoxClient* client_;
+
+  // True if the dialog should no longer be shown, e.g. because the underlying
+  // tab navigated away while the dialog was queued.
+  bool skip_this_dialog_;
+
   // Information about the message box is held in the following variables.
-  TabContents* tab_contents_;
   std::wstring title_;
   int dialog_flags_;
   std::wstring message_text_;