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| 1 // Copyright 2014 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 }); |
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