chrome/renderer/resources/extensions/page_capture_custom_bindings.js

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Custom binding for the pageCapture API.
   6
   7 var binding = require('binding').Binding.create('pageCapture');
   8
   9 var pageCaptureNatives = requireNative('page_capture');
  10 var CreateBlob = pageCaptureNatives.CreateBlob;
  11 var SendResponseAck = pageCaptureNatives.SendResponseAck;
  12
  13 binding.registerCustomHook(function(bindingsAPI) {
  14   var apiFunctions = bindingsAPI.apiFunctions;
  15
  16   apiFunctions.setCustomCallback('saveAsMHTML',
  17                                  function(name, request, response) {
  18     var path = response.mhtmlFilePath;
  19     var size = response.mhtmlFileLength;
  20
  21     if (request.callback)
  22       request.callback(CreateBlob(path, size));
  23     request.callback = null;
  24
  25     // Notify the browser. Now that the blob is referenced from JavaScript,
  26     // the browser can drop its reference to it.
  27     SendResponseAck(request.id);
  28   });
  29 });
  30
  31 exports.binding = binding.generate();