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 7var binding = require('binding').Binding.create('pageCapture'); 8 9var handleUncaughtException = require('uncaught_exception_handler').handle; 10var pageCaptureNatives = requireNative('page_capture'); 11var CreateBlob = pageCaptureNatives.CreateBlob; 12var SendResponseAck = pageCaptureNatives.SendResponseAck; 13 14binding.registerCustomHook(function(bindingsAPI) { 15 var apiFunctions = bindingsAPI.apiFunctions; 16 17 apiFunctions.setCustomCallback('saveAsMHTML', 18 function(name, request, response) { 19 var callback = request.callback; 20 request.callback = null; 21 if (response) 22 response = CreateBlob(response.mhtmlFilePath, response.mhtmlFileLength); 23 24 try { 25 callback(response); 26 } catch (e) { 27 handleUncaughtException( 28 'Error in chrome.pageCapture.saveAsMHTML callback', e, request.stack); 29 } finally { 30 // Notify the browser. Now that the blob is referenced from JavaScript, 31 // the browser can drop its reference to it. 32 SendResponseAck(request.id); 33 } 34 }); 35}); 36 37exports.binding = binding.generate(); 38