1 // Copyright 2015 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 var requestButton = document.getElementById("requestButton"); 6 var scanButton = document.getElementById('scanButton'); 7 var scannedImages = document.getElementById('scannedImages'); 8 var waitAnimation = document.getElementById('waitAnimation'); 9 var imageMimeType; 10 11 function setOnlyChild(parent, child) { 12 while (parent.firstChild) { 13 parent.removeChild(parent.firstChild); 14 } 15 parent.appendChild(child); 16 } 17 18 var gotPermission = function(result) { 19 waitAnimation.style.display = 'block'; 20 requestButton.style.display = 'none'; 21 scanButton.style.display = 'block'; 22 console.log('App was granted the "documentScan" permission.'); 23 waitAnimation.style.display = 'none'; 24 }; 25 26 var permissionObj = {permissions: ['documentScan']}; 27 28 requestButton.addEventListener('click', function() { 29 waitAnimation.style.display = 'block'; 30 chrome.permissions.request( permissionObj, function(result) { 31 if (result) { 32 gotPermission(); 33 } else { 34 console.log('App was not granted the "documentScan" permission.'); 35 console.log(chrome.runtime.lastError); 36 } 37 }); 38 }); 39 40 var onScanCompleted = function(scan_results) { 41 waitAnimation.style.display = 'none'; 42 if (chrome.runtime.lastError) { 43 console.log('Scan failed: ' + chrome.runtime.lastError.message); 44 return; 45 } 46 numImages = scan_results.dataUrls.length; 47 console.log('Scan completed with ' + numImages + ' images.'); 48 for (var i = 0; i < numImages; i++) { 49 urlData = scan_results.dataUrls[i] 50 console.log('Scan ' + i + ' data length ' + 51 urlData.length + '.'); 52 console.log('URL is ' + urlData); 53 var scannedImage = document.createElement('img'); 54 scannedImage.src = urlData; 55 scannedImages.insertBefore(scannedImage, scannedImages.firstChild); 56 } 57 }; 58 59 scanButton.addEventListener('click', function() { 60 var scanProperties = {}; 61 waitAnimation.style.display = 'block'; 62 chrome.documentScan.scan(scanProperties, onScanCompleted); 63 }); 64 65 chrome.permissions.contains(permissionObj, function(result) { 66 if (result) { 67 gotPermission(); 68 } 69 }); 70
