Create 2272 release branch for CEF3.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/2272@1993 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

include/cef_download_handler.h

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+// Copyright (c) 2012 Marshall A. Greenblatt. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---------------------------------------------------------------------------
+//
+// The contents of this file must follow a specific format in order to
+// support the CEF translator tool. See the translator.README.txt file in the
+// tools directory for more information.
+//
+
+#ifndef CEF_INCLUDE_CEF_DOWNLOAD_HANDLER_H_
+#define CEF_INCLUDE_CEF_DOWNLOAD_HANDLER_H_
+#pragma once
+
+#include "include/cef_base.h"
+#include "include/cef_browser.h"
+#include "include/cef_download_item.h"
+
+
+///
+// Callback interface used to asynchronously continue a download.
+///
+/*--cef(source=library)--*/
+class CefBeforeDownloadCallback : public virtual CefBase {
+ public:
+  ///
+  // Call to continue the download. Set |download_path| to the full file path
+  // for the download including the file name or leave blank to use the
+  // suggested name and the default temp directory. Set |show_dialog| to true
+  // if you do wish to show the default "Save As" dialog.
+  ///
+  /*--cef(capi_name=cont,optional_param=download_path)--*/
+  virtual void Continue(const CefString& download_path, bool show_dialog) =0;
+};
+
+
+///
+// Callback interface used to asynchronously cancel a download.
+///
+/*--cef(source=library)--*/
+class CefDownloadItemCallback : public virtual CefBase {
+ public:
+  ///
+  // Call to cancel the download.
+  ///
+  /*--cef()--*/
+  virtual void Cancel() =0;
+
+  ///
+  // Call to pause the download.
+  ///
+  /*--cef()--*/
+  virtual void Pause() =0;
+
+  ///
+  // Call to resume the download.
+  ///
+  /*--cef()--*/
+  virtual void Resume() =0;
+};
+
+
+///
+// Class used to handle file downloads. The methods of this class will called
+// on the browser process UI thread.
+///
+/*--cef(source=client)--*/
+class CefDownloadHandler : public virtual CefBase {
+ public:
+  ///
+  // Called before a download begins. |suggested_name| is the suggested name for
+  // the download file. By default the download will be canceled. Execute
+  // |callback| either asynchronously or in this method to continue the download
+  // if desired. Do not keep a reference to |download_item| outside of this
+  // method.
+  ///
+  /*--cef()--*/
+  virtual void OnBeforeDownload(
+      CefRefPtr<CefBrowser> browser,
+      CefRefPtr<CefDownloadItem> download_item,
+      const CefString& suggested_name,
+      CefRefPtr<CefBeforeDownloadCallback> callback) =0;
+
+  ///
+  // Called when a download's status or progress information has been updated.
+  // This may be called multiple times before and after OnBeforeDownload().
+  // Execute |callback| either asynchronously or in this method to cancel the
+  // download if desired. Do not keep a reference to |download_item| outside of
+  // this method.
+  ///
+  /*--cef()--*/
+  virtual void OnDownloadUpdated(
+      CefRefPtr<CefBrowser> browser,
+      CefRefPtr<CefDownloadItem> download_item,
+      CefRefPtr<CefDownloadItemCallback> callback) {}
+};
+
+#endif  // CEF_INCLUDE_CEF_DOWNLOAD_HANDLER_H_