Add support for JavaScript alert, confirm, prompt and onbeforeunload dialogs (issue #507).

- Add CefJSDialogHandler and CefJSDialogCallback interfaces.
- Add default dialog implementations for Windows and Mac OS-X.
- Add "JavaScript Dialogs" example to cefclient.
- Change TestHandler::AddResource to ignore the query component when matching URLs.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@594 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/javascript_dialog_creator.h

@@ -0,0 +1,61 @@
+// Copyright (c) 2012 The Chromium Embedded Framework Authors.
+// Portions copyright (c) 2012 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 CEF_LIBCEF_BROWSER_JAVASCRIPT_DIALOG_CREATOR_H_
+#define CEF_LIBCEF_BROWSER_JAVASCRIPT_DIALOG_CREATOR_H_
+#pragma once
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/public/browser/javascript_dialogs.h"
+
+class CefBrowserHostImpl;
+class CefJavaScriptDialog;
+
+class CefJavaScriptDialogCreator : public content::JavaScriptDialogCreator {
+ public:
+  explicit CefJavaScriptDialogCreator(CefBrowserHostImpl* browser);
+  virtual ~CefJavaScriptDialogCreator();
+
+  // JavaScriptDialogCreator methods.
+  virtual void RunJavaScriptDialog(
+      content::WebContents* web_contents,
+      const GURL& origin_url,
+      const std::string& accept_lang,
+      ui::JavascriptMessageType javascript_message_type,
+      const string16& message_text,
+      const string16& default_prompt_text,
+      const DialogClosedCallback& callback,
+      bool* did_suppress_message) OVERRIDE;
+
+  virtual void RunBeforeUnloadDialog(
+      content::WebContents* web_contents,
+      const string16& message_text,
+      bool is_reload,
+      const DialogClosedCallback& callback) OVERRIDE;
+
+  virtual void ResetJavaScriptState(
+      content::WebContents* web_contents) OVERRIDE;
+
+  // Called by the CefJavaScriptDialog when it closes.
+  void DialogClosed(CefJavaScriptDialog* dialog);
+
+  CefBrowserHostImpl* browser() const { return browser_; }
+
+ private:
+  // This pointer is guaranteed to outlive the CefJavaScriptDialogCreator.
+  CefBrowserHostImpl* browser_;
+
+#if defined(OS_MACOSX) || defined(OS_WIN)
+  // The dialog being shown. No queueing.
+  scoped_ptr<CefJavaScriptDialog> dialog_;
+#endif
+
+  DISALLOW_COPY_AND_ASSIGN(CefJavaScriptDialogCreator);
+};
+
+#endif  // CEF_LIBCEF_BROWSER_JAVASCRIPT_DIALOG_CREATOR_H_