mirror of
https://github.com/apache/cordova-plugin-camera.git
synced 2025-05-07 06:12:57 +08:00
CB-8707 refactoring windows code to improve readability
This commit is contained in:
Murat Sutunc
parent
5ef04e552c
commit
29c9ea387d
@ -19,11 +19,11 @@
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*
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*
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*/
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*/
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/*global Windows:true, URL:true */
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/*jshint unused:true, undef:true, browser:true */
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/*global Windows:true, URL:true, module:true, require:true */
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var cordova = require('cordova'),
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var Camera = require('./Camera');
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Camera = require('./Camera');
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module.exports = {
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module.exports = {
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@ -43,467 +43,468 @@ module.exports = {
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// 11 cameraDirection:0
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// 11 cameraDirection:0
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takePicture: function (successCallback, errorCallback, args) {
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takePicture: function (successCallback, errorCallback, args) {
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var encodingType = args[5];
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var targetWidth = args[3];
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var targetHeight = args[4];
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var sourceType = args[2];
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var sourceType = args[2];
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var destinationType = args[1];
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var mediaType = args[6];
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var allowCrop = !!args[7];
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var saveToPhotoAlbum = args[9];
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var cameraDirection = args[11];
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// resize method :)
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var resizeImage = function (file) {
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var tempPhotoFileName = "";
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if (encodingType == Camera.EncodingType.PNG) {
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tempPhotoFileName = "camera_cordova_temp_return.png";
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} else {
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tempPhotoFileName = "camera_cordova_temp_return.jpg";
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}
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var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
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file.copyAsync(storageFolder, file.name, Windows.Storage.NameCollisionOption.replaceExisting).then(function (storageFile) {
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Windows.Storage.FileIO.readBufferAsync(storageFile).then(function(buffer) {
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var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
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var imageData = "data:" + file.contentType + ";base64," + strBase64;
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var image = new Image();
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image.src = imageData;
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image.onload = function() {
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var imageWidth = targetWidth,
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imageHeight = targetHeight;
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var canvas = document.createElement('canvas');
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canvas.width = imageWidth;
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canvas.height = imageHeight;
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canvas.getContext("2d").drawImage(this, 0, 0, imageWidth, imageHeight);
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var fileContent = canvas.toDataURL(file.contentType).split(',')[1];
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var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
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storageFolder.createFileAsync(tempPhotoFileName, Windows.Storage.CreationCollisionOption.generateUniqueName).done(function (storagefile) {
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var content = Windows.Security.Cryptography.CryptographicBuffer.decodeFromBase64String(fileContent);
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Windows.Storage.FileIO.writeBufferAsync(storagefile, content).then(function () {
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successCallback("ms-appdata:///local/" + storagefile.name);
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}, function () {
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errorCallback("Resize picture error.");
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});
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});
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};
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});
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}, function () {
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errorCallback("Can't access localStorage folder");
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});
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};
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// because of asynchronous method, so let the successCallback be called in it.
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var resizeImageBase64 = function (file) {
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Windows.Storage.FileIO.readBufferAsync(file).done( function(buffer) {
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var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
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var imageData = "data:" + file.contentType + ";base64," + strBase64;
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var image = new Image();
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image.src = imageData;
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image.onload = function() {
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var imageWidth = targetWidth,
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imageHeight = targetHeight;
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var canvas = document.createElement('canvas');
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canvas.width = imageWidth;
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canvas.height = imageHeight;
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var ctx = canvas.getContext("2d");
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ctx.drawImage(this, 0, 0, imageWidth, imageHeight);
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// The resized file ready for upload
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var finalFile = canvas.toDataURL(file.contentType);
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// Remove the prefix such as "data:" + contentType + ";base64," , in order to meet the Cordova API.
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var arr = finalFile.split(",");
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var newStr = finalFile.substr(arr[0].length + 1);
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successCallback(newStr);
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};
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});
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};
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if (sourceType != Camera.PictureSourceType.CAMERA) {
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if (sourceType != Camera.PictureSourceType.CAMERA) {
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takePictureFromFile(successCallback, errorCallback, args);
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// TODO: Add WP8.1 support
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// WP8.1 doesn't allow to use of pickSingleFileAsync method
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// see http://msdn.microsoft.com/en-us/library/windows/apps/br207852.aspx for details
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// replacement of pickSingleFileAsync - pickSingleFileAndContinue method
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// will take application to suspended state and this require additional logic to wake application up
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if (navigator.appVersion.indexOf('Windows Phone 8.1') >= 0 ) {
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errorCallback('Not supported');
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return;
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}
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var fileOpenPicker = new Windows.Storage.Pickers.FileOpenPicker();
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fileOpenPicker.suggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.picturesLibrary;
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if (mediaType == Camera.MediaType.PICTURE) {
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fileOpenPicker.fileTypeFilter.replaceAll([".png", ".jpg", ".jpeg"]);
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}
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else if (mediaType == Camera.MediaType.VIDEO) {
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fileOpenPicker.fileTypeFilter.replaceAll([".avi", ".flv", ".asx", ".asf", ".mov", ".mp4", ".mpg", ".rm", ".srt", ".swf", ".wmv", ".vob"]);
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}
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else {
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fileOpenPicker.fileTypeFilter.replaceAll(["*"]);
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}
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fileOpenPicker.pickSingleFileAsync().done(function (file) {
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if (file) {
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if (destinationType == Camera.DestinationType.FILE_URI || destinationType == Camera.DestinationType.NATIVE_URI) {
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if (targetHeight > 0 && targetWidth > 0) {
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resizeImage(file);
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}
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else {
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var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
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file.copyAsync(storageFolder, file.name, Windows.Storage.NameCollisionOption.replaceExisting).then(function (storageFile) {
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successCallback(URL.createObjectURL(storageFile));
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}, function () {
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errorCallback("Can't access localStorage folder.");
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});
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}
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}
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else {
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if (targetHeight > 0 && targetWidth > 0) {
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resizeImageBase64(file);
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} else {
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Windows.Storage.FileIO.readBufferAsync(file).done(function (buffer) {
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var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
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successCallback(strBase64);
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});
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}
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}
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} else {
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errorCallback("User didn't choose a file.");
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}
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}, function () {
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errorCallback("User didn't choose a file.");
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});
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} else {
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} else {
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takePictureFromCamera(successCallback, errorCallback, args);
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var CaptureNS = Windows.Media.Capture;
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// Check if necessary API available
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if (!CaptureNS.CameraCaptureUI) {
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// We are running on WP8.1 which lacks CameraCaptureUI class
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// so we need to use MediaCapture class instead and implement custom UI for camera
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var capturePreview = null,
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captureCancelButton = null,
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capture = null,
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captureSettings = null;
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var createCameraUI = function () {
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// Create fullscreen preview
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capturePreview = document.createElement("video");
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// z-order style element for capturePreview and captureCancelButton elts
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// is necessary to avoid overriding by another page elements, -1 sometimes is not enough
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capturePreview.style.cssText = "position: fixed; left: 0; top: 0; width: 100%; height: 100%; z-order: 999";
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// Create cancel button
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captureCancelButton = document.createElement("button");
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captureCancelButton.innerText = "Cancel";
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captureCancelButton.style.cssText = "position: fixed; right: 0; bottom: 0; display: block; margin: 20px; z-order: 1000";
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capture = new CaptureNS.MediaCapture();
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captureSettings = new CaptureNS.MediaCaptureInitializationSettings();
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captureSettings.streamingCaptureMode = CaptureNS.StreamingCaptureMode.video;
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};
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var startCameraPreview = function () {
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// Search for available camera devices
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// This is necessary to detect which camera (front or back) we should use
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var expectedPanel = cameraDirection === 1 ? Windows.Devices.Enumeration.Panel.front : Windows.Devices.Enumeration.Panel.back;
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Windows.Devices.Enumeration.DeviceInformation.findAllAsync(Windows.Devices.Enumeration.DeviceClass.videoCapture)
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.done(function (devices) {
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if (devices.length > 0) {
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devices.forEach(function(currDev) {
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if (currDev.enclosureLocation.panel && currDev.enclosureLocation.panel == expectedPanel) {
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captureSettings.videoDeviceId = currDev.id;
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}
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});
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capture.initializeAsync(captureSettings).done(function () {
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// This is necessary since WP8.1 MediaCapture outputs video stream rotated 90 degrees CCW
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// TODO: This can be not consistent across devices, need additional testing on various devices
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capture.setPreviewRotation(Windows.Media.Capture.VideoRotation.clockwise90Degrees);
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// msdn.microsoft.com/en-us/library/windows/apps/hh452807.aspx
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capturePreview.msZoom = true;
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capturePreview.src = URL.createObjectURL(capture);
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capturePreview.play();
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// Insert preview frame and controls into page
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document.body.appendChild(capturePreview);
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document.body.appendChild(captureCancelButton);
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// Bind events to controls
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capturePreview.addEventListener('click', captureAction);
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captureCancelButton.addEventListener('click', function () {
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destroyCameraPreview();
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errorCallback('Cancelled');
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}, false);
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}, function (err) {
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destroyCameraPreview();
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errorCallback('Camera intitialization error ' + err);
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});
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} else {
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destroyCameraPreview();
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errorCallback('Camera not found');
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}
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});
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};
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var destroyCameraPreview = function () {
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capturePreview.pause();
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capturePreview.src = null;
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[capturePreview, captureCancelButton].forEach(function(elem) {
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if (elem /* && elem in document.body.childNodes */) {
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document.body.removeChild(elem);
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}
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});
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if (capture) {
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capture.stopRecordAsync();
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capture = null;
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}
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};
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var captureAction = function () {
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var encodingProperties,
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fileName,
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generateUniqueCollisionOption = Windows.Storage.CreationCollisionOption.generateUniqueName,
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tempFolder = Windows.Storage.ApplicationData.current.temporaryFolder;
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if (encodingType == Camera.EncodingType.PNG) {
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fileName = 'photo.png';
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encodingProperties = Windows.Media.MediaProperties.ImageEncodingProperties.createPng();
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} else {
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fileName = 'photo.jpg';
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encodingProperties = Windows.Media.MediaProperties.ImageEncodingProperties.createJpeg();
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}
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tempFolder.createFileAsync(fileName, generateUniqueCollisionOption).done(function(capturedFile) {
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capture.capturePhotoToStorageFileAsync(encodingProperties, capturedFile).done(function() {
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destroyCameraPreview();
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// success callback for capture operation
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var success = function(capturedfile) {
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if (destinationType == Camera.DestinationType.FILE_URI || destinationType == Camera.DestinationType.NATIVE_URI) {
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if (targetHeight > 0 && targetWidth > 0) {
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resizeImage(capturedfile);
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} else {
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capturedfile.copyAsync(Windows.Storage.ApplicationData.current.localFolder, capturedfile.name, generateUniqueCollisionOption).done(function(copiedfile) {
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successCallback("ms-appdata:///local/" + copiedfile.name);
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}, errorCallback);
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}
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} else {
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if (targetHeight > 0 && targetWidth > 0) {
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resizeImageBase64(capturedfile);
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} else {
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Windows.Storage.FileIO.readBufferAsync(capturedfile).done(function(buffer) {
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var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
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capturedfile.deleteAsync().done(function() {
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successCallback(strBase64);
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}, function(err) {
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console.error(err);
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successCallback(strBase64);
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});
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}, errorCallback);
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}
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}
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};
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if (saveToPhotoAlbum) {
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/*
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Need to add and remove an event listener to catch activation state
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Using FileSavePicker will suspend the app and it's required to catch the pickSaveFileContinuation
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https://msdn.microsoft.com/en-us/library/windows/apps/xaml/dn631755.aspx
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*/
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function cameraActivationHandler(eventArgs) {
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if (eventArgs.kind === Windows.ApplicationModel.Activation.ActivationKind.pickSaveFileContinuation) {
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var file = eventArgs.file;
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if (file) {
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// Prevent updates to the remote version of the file until we're done
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Windows.Storage.CachedFileManager.deferUpdates(file);
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capturedFile.moveAndReplaceAsync(file)
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.then(function() {
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// Let Windows know that we're finished changing the file so
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// the other app can update the remote version of the file.
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return Windows.Storage.CachedFileManager.completeUpdatesAsync(file);
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})
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.done(
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function(updateStatus) {
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if (updateStatus === Windows.Storage.Provider.FileUpdateStatus.complete) {
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success(capturedFile);
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} else {
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errorCallback();
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}
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}, errorCallback
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);
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} else {
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errorCallback();
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}
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Windows.UI.WebUI.WebUIApplication.removeEventListener("activated", cameraActivationHandler);
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}
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}
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var savePicker = new Windows.Storage.Pickers.FileSavePicker();
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savePicker.suggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.documentsLibrary;
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if (encodingType === Camera.EncodingType.PNG) {
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savePicker.fileTypeChoices.insert("PNG", [".png"]);
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} else {
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savePicker.fileTypeChoices.insert("JPEG", [".jpg"]);
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}
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savePicker.suggestedFileName = fileName;
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Windows.UI.WebUI.WebUIApplication.addEventListener("activated", cameraActivationHandler);
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savePicker.pickSaveFileAndContinue();
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} else {
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success(capturedFile);
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}
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}, function(err) {
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destroyCameraPreview();
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errorCallback(err);
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});
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}, function(err) {
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destroyCameraPreview();
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errorCallback(err);
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});
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};
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try {
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createCameraUI();
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startCameraPreview();
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} catch (ex) {
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errorCallback(ex);
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}
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} else {
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var cameraCaptureUI = new Windows.Media.Capture.CameraCaptureUI();
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cameraCaptureUI.photoSettings.allowCropping = allowCrop;
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if (encodingType == Camera.EncodingType.PNG) {
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cameraCaptureUI.photoSettings.format = Windows.Media.Capture.CameraCaptureUIPhotoFormat.png;
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} else {
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cameraCaptureUI.photoSettings.format = Windows.Media.Capture.CameraCaptureUIPhotoFormat.jpeg;
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}
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|
|
||||||
// decide which max pixels should be supported by targetWidth or targetHeight.
|
|
||||||
if (targetWidth >= 1280 || targetHeight >= 960) {
|
|
||||||
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.large3M;
|
|
||||||
} else if (targetWidth >= 1024 || targetHeight >= 768) {
|
|
||||||
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.mediumXga;
|
|
||||||
} else if (targetWidth >= 800 || targetHeight >= 600) {
|
|
||||||
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.mediumXga;
|
|
||||||
} else if (targetWidth >= 640 || targetHeight >= 480) {
|
|
||||||
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.smallVga;
|
|
||||||
} else if (targetWidth >= 320 || targetHeight >= 240) {
|
|
||||||
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.verySmallQvga;
|
|
||||||
} else {
|
|
||||||
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.highestAvailable;
|
|
||||||
}
|
|
||||||
|
|
||||||
cameraCaptureUI.captureFileAsync(Windows.Media.Capture.CameraCaptureUIMode.photo).then(function(picture) {
|
|
||||||
if (picture) {
|
|
||||||
// save to photo album successCallback
|
|
||||||
var success = function() {
|
|
||||||
if (destinationType == Camera.DestinationType.FILE_URI) {
|
|
||||||
if (targetHeight > 0 && targetWidth > 0) {
|
|
||||||
resizeImage(picture);
|
|
||||||
} else {
|
|
||||||
|
|
||||||
var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
|
|
||||||
picture.copyAsync(storageFolder, picture.name, Windows.Storage.NameCollisionOption.replaceExisting).then(function(storageFile) {
|
|
||||||
successCallback("ms-appdata:///local/" + storageFile.name);
|
|
||||||
}, function() {
|
|
||||||
errorCallback("Can't access localStorage folder.");
|
|
||||||
});
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
if (targetHeight > 0 && targetWidth > 0) {
|
|
||||||
resizeImageBase64(picture);
|
|
||||||
} else {
|
|
||||||
Windows.Storage.FileIO.readBufferAsync(picture).done(function(buffer) {
|
|
||||||
var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
|
|
||||||
successCallback(strBase64);
|
|
||||||
});
|
|
||||||
}
|
|
||||||
}
|
|
||||||
};
|
|
||||||
// save to photo album errorCallback
|
|
||||||
var fail = function() {
|
|
||||||
//errorCallback("FileError, code:" + fileError.code);
|
|
||||||
errorCallback("Save fail.");
|
|
||||||
};
|
|
||||||
|
|
||||||
if (saveToPhotoAlbum) {
|
|
||||||
var savePicker = new Windows.Storage.Pickers.FileSavePicker();
|
|
||||||
|
|
||||||
savePicker.suggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.documentsLibrary;
|
|
||||||
if (encodingType === Camera.EncodingType.PNG) {
|
|
||||||
savePicker.fileTypeChoices.insert("PNG", [".png"]);
|
|
||||||
savePicker.suggestedFileName = "photo.png";
|
|
||||||
} else {
|
|
||||||
savePicker.fileTypeChoices.insert("JPEG", [".jpg"]);
|
|
||||||
savePicker.suggestedFileName = "photo.jpg";
|
|
||||||
}
|
|
||||||
|
|
||||||
savePicker.pickSaveFileAsync()
|
|
||||||
.then(function(file) {
|
|
||||||
if (file) {
|
|
||||||
// Prevent updates to the remote version of the file until we're done
|
|
||||||
Windows.Storage.CachedFileManager.deferUpdates(file);
|
|
||||||
picture.moveAndReplaceAsync(file)
|
|
||||||
.then(function() {
|
|
||||||
// Let Windows know that we're finished changing the file so
|
|
||||||
// the other app can update the remote version of the file.
|
|
||||||
return Windows.Storage.CachedFileManager.completeUpdatesAsync(file);
|
|
||||||
})
|
|
||||||
.done(
|
|
||||||
function(updateStatus) {
|
|
||||||
if (updateStatus === Windows.Storage.Provider.FileUpdateStatus.complete) {
|
|
||||||
success();
|
|
||||||
} else {
|
|
||||||
fail();
|
|
||||||
}
|
|
||||||
}, function() {
|
|
||||||
fail();
|
|
||||||
}
|
|
||||||
);
|
|
||||||
} else {
|
|
||||||
fail();
|
|
||||||
}
|
|
||||||
});
|
|
||||||
} else {
|
|
||||||
success();
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
errorCallback("User didn't capture a photo.");
|
|
||||||
}
|
|
||||||
}, function() {
|
|
||||||
errorCallback("Fail to capture a photo.");
|
|
||||||
});
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
||||||
|
// Resize method
|
||||||
|
function resizeImage(successCallback, errorCallback, file, targetWidth, targetHeight, encodingType) {
|
||||||
|
var tempPhotoFileName = "";
|
||||||
|
if (encodingType == Camera.EncodingType.PNG) {
|
||||||
|
tempPhotoFileName = "camera_cordova_temp_return.png";
|
||||||
|
} else {
|
||||||
|
tempPhotoFileName = "camera_cordova_temp_return.jpg";
|
||||||
|
}
|
||||||
|
|
||||||
|
var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
|
||||||
|
file.copyAsync(storageFolder, file.name, Windows.Storage.NameCollisionOption.replaceExisting)
|
||||||
|
.then(function (storageFile) { return Windows.Storage.FileIO.readBufferAsync(storageFile); })
|
||||||
|
.then(function(buffer) {
|
||||||
|
var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
|
||||||
|
var imageData = "data:" + file.contentType + ";base64," + strBase64;
|
||||||
|
var image = new Image();
|
||||||
|
image.src = imageData;
|
||||||
|
image.onload = function() {
|
||||||
|
var imageWidth = targetWidth,
|
||||||
|
imageHeight = targetHeight;
|
||||||
|
var canvas = document.createElement('canvas');
|
||||||
|
var storageFileName;
|
||||||
|
|
||||||
|
canvas.width = imageWidth;
|
||||||
|
canvas.height = imageHeight;
|
||||||
|
|
||||||
|
canvas.getContext("2d").drawImage(this, 0, 0, imageWidth, imageHeight);
|
||||||
|
|
||||||
|
var fileContent = canvas.toDataURL(file.contentType).split(',')[1];
|
||||||
|
|
||||||
|
var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
|
||||||
|
|
||||||
|
storageFolder.createFileAsync(tempPhotoFileName, Windows.Storage.CreationCollisionOption.generateUniqueName)
|
||||||
|
.then(function (storagefile) {
|
||||||
|
var content = Windows.Security.Cryptography.CryptographicBuffer.decodeFromBase64String(fileContent);
|
||||||
|
storageFileName = storagefile.name;
|
||||||
|
return Windows.Storage.FileIO.writeBufferAsync(storagefile, content);
|
||||||
|
})
|
||||||
|
.done(function () {
|
||||||
|
successCallback("ms-appdata:///local/" + storageFileName);
|
||||||
|
}, errorCallback);
|
||||||
|
};
|
||||||
|
})
|
||||||
|
.done(null, function(err) {
|
||||||
|
errorCallback(err);
|
||||||
|
}
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Because of asynchronous method, so let the successCallback be called in it.
|
||||||
|
function resizeImageBase64(successCallback, errorCallback, file, targetWidth, targetHeight) {
|
||||||
|
Windows.Storage.FileIO.readBufferAsync(file).done( function(buffer) {
|
||||||
|
var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
|
||||||
|
var imageData = "data:" + file.contentType + ";base64," + strBase64;
|
||||||
|
|
||||||
|
var image = new Image();
|
||||||
|
image.src = imageData;
|
||||||
|
|
||||||
|
image.onload = function() {
|
||||||
|
var imageWidth = targetWidth,
|
||||||
|
imageHeight = targetHeight;
|
||||||
|
var canvas = document.createElement('canvas');
|
||||||
|
|
||||||
|
canvas.width = imageWidth;
|
||||||
|
canvas.height = imageHeight;
|
||||||
|
|
||||||
|
var ctx = canvas.getContext("2d");
|
||||||
|
ctx.drawImage(this, 0, 0, imageWidth, imageHeight);
|
||||||
|
|
||||||
|
// The resized file ready for upload
|
||||||
|
var finalFile = canvas.toDataURL(file.contentType);
|
||||||
|
|
||||||
|
// Remove the prefix such as "data:" + contentType + ";base64," , in order to meet the Cordova API.
|
||||||
|
var arr = finalFile.split(",");
|
||||||
|
var newStr = finalFile.substr(arr[0].length + 1);
|
||||||
|
successCallback(newStr);
|
||||||
|
};
|
||||||
|
}, function(err) { errorCallback(err); });
|
||||||
|
}
|
||||||
|
|
||||||
|
function takePictureFromFile(successCallback, errorCallback, mediaType, destinationType, targetWidth, targetHeight, encodingType) {
|
||||||
|
// TODO: Add WP8.1 support
|
||||||
|
// WP8.1 doesn't allow to use of pickSingleFileAsync method
|
||||||
|
// see http://msdn.microsoft.com/en-us/library/windows/apps/br207852.aspx for details
|
||||||
|
// replacement of pickSingleFileAsync - pickSingleFileAndContinue method
|
||||||
|
// will take application to suspended state and this require additional logic to wake application up
|
||||||
|
if (navigator.appVersion.indexOf('Windows Phone 8.1') >= 0 ) {
|
||||||
|
errorCallback('Not supported');
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
var fileOpenPicker = new Windows.Storage.Pickers.FileOpenPicker();
|
||||||
|
fileOpenPicker.suggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.picturesLibrary;
|
||||||
|
if (mediaType == Camera.MediaType.PICTURE) {
|
||||||
|
fileOpenPicker.fileTypeFilter.replaceAll([".png", ".jpg", ".jpeg"]);
|
||||||
|
}
|
||||||
|
else if (mediaType == Camera.MediaType.VIDEO) {
|
||||||
|
fileOpenPicker.fileTypeFilter.replaceAll([".avi", ".flv", ".asx", ".asf", ".mov", ".mp4", ".mpg", ".rm", ".srt", ".swf", ".wmv", ".vob"]);
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
fileOpenPicker.fileTypeFilter.replaceAll(["*"]);
|
||||||
|
}
|
||||||
|
|
||||||
|
fileOpenPicker.pickSingleFileAsync().done(function (file) {
|
||||||
|
if (file) {
|
||||||
|
if (destinationType == Camera.DestinationType.FILE_URI || destinationType == Camera.DestinationType.NATIVE_URI) {
|
||||||
|
if (targetHeight > 0 && targetWidth > 0) {
|
||||||
|
resizeImage(successCallback, errorCallback, file, targetWidth, targetHeight, encodingType);
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
|
||||||
|
file.copyAsync(storageFolder, file.name, Windows.Storage.NameCollisionOption.replaceExisting).done(function (storageFile) {
|
||||||
|
successCallback(URL.createObjectURL(storageFile));
|
||||||
|
}, function () {
|
||||||
|
errorCallback("Can't access localStorage folder.");
|
||||||
|
});
|
||||||
|
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
if (targetHeight > 0 && targetWidth > 0) {
|
||||||
|
resizeImageBase64(successCallback, errorCallback, file, targetWidth, targetHeight);
|
||||||
|
} else {
|
||||||
|
Windows.Storage.FileIO.readBufferAsync(file).done(function (buffer) {
|
||||||
|
var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
|
||||||
|
successCallback(strBase64);
|
||||||
|
}, errorCallback);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
errorCallback("User didn't choose a file.");
|
||||||
|
}
|
||||||
|
}, function () {
|
||||||
|
errorCallback("User didn't choose a file.");
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
function takePictureFromCamera(successCallback, errorCallback, args) {
|
||||||
|
// Check if necessary API available
|
||||||
|
if (!Windows.Media.Capture.CameraCaptureUI) {
|
||||||
|
takePictureFromCameraWP(successCallback, errorCallback, args);
|
||||||
|
} else {
|
||||||
|
takePictureFromCameraWindows(successCallback, errorCallback, args);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function takePictureFromCameraWP(successCallback, errorCallback, args) {
|
||||||
|
// We are running on WP8.1 which lacks CameraCaptureUI class
|
||||||
|
// so we need to use MediaCapture class instead and implement custom UI for camera
|
||||||
|
var destinationType = args[1],
|
||||||
|
targetWidth = args[3],
|
||||||
|
targetHeight = args[4],
|
||||||
|
encodingType = args[5],
|
||||||
|
saveToPhotoAlbum = args[9],
|
||||||
|
cameraDirection = args[11],
|
||||||
|
capturePreview = null,
|
||||||
|
captureCancelButton = null,
|
||||||
|
capture = null,
|
||||||
|
captureSettings = null,
|
||||||
|
CaptureNS = Windows.Media.Capture;
|
||||||
|
|
||||||
|
var createCameraUI = function () {
|
||||||
|
// Create fullscreen preview
|
||||||
|
capturePreview = document.createElement("video");
|
||||||
|
|
||||||
|
// z-order style element for capturePreview and captureCancelButton elts
|
||||||
|
// is necessary to avoid overriding by another page elements, -1 sometimes is not enough
|
||||||
|
capturePreview.style.cssText = "position: fixed; left: 0; top: 0; width: 100%; height: 100%; z-order: 999";
|
||||||
|
|
||||||
|
// Create cancel button
|
||||||
|
captureCancelButton = document.createElement("button");
|
||||||
|
captureCancelButton.innerText = "Cancel";
|
||||||
|
captureCancelButton.style.cssText = "position: fixed; right: 0; bottom: 0; display: block; margin: 20px; z-order: 1000";
|
||||||
|
|
||||||
|
capture = new CaptureNS.MediaCapture();
|
||||||
|
|
||||||
|
captureSettings = new CaptureNS.MediaCaptureInitializationSettings();
|
||||||
|
captureSettings.streamingCaptureMode = CaptureNS.StreamingCaptureMode.video;
|
||||||
|
};
|
||||||
|
|
||||||
|
var startCameraPreview = function () {
|
||||||
|
// Search for available camera devices
|
||||||
|
// This is necessary to detect which camera (front or back) we should use
|
||||||
|
var expectedPanel = cameraDirection === 1 ? Windows.Devices.Enumeration.Panel.front : Windows.Devices.Enumeration.Panel.back;
|
||||||
|
Windows.Devices.Enumeration.DeviceInformation.findAllAsync(Windows.Devices.Enumeration.DeviceClass.videoCapture)
|
||||||
|
.done(function (devices) {
|
||||||
|
if (devices.length > 0) {
|
||||||
|
devices.forEach(function(currDev) {
|
||||||
|
if (currDev.enclosureLocation.panel && currDev.enclosureLocation.panel == expectedPanel) {
|
||||||
|
captureSettings.videoDeviceId = currDev.id;
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
capture.initializeAsync(captureSettings).done(function () {
|
||||||
|
// This is necessary since WP8.1 MediaCapture outputs video stream rotated 90 degrees CCW
|
||||||
|
// TODO: This can be not consistent across devices, need additional testing on various devices
|
||||||
|
capture.setPreviewRotation(Windows.Media.Capture.VideoRotation.clockwise90Degrees);
|
||||||
|
// msdn.microsoft.com/en-us/library/windows/apps/hh452807.aspx
|
||||||
|
capturePreview.msZoom = true;
|
||||||
|
capturePreview.src = URL.createObjectURL(capture);
|
||||||
|
capturePreview.play();
|
||||||
|
|
||||||
|
// Insert preview frame and controls into page
|
||||||
|
document.body.appendChild(capturePreview);
|
||||||
|
document.body.appendChild(captureCancelButton);
|
||||||
|
|
||||||
|
// Bind events to controls
|
||||||
|
capturePreview.addEventListener('click', captureAction);
|
||||||
|
captureCancelButton.addEventListener('click', function () {
|
||||||
|
destroyCameraPreview();
|
||||||
|
errorCallback('Cancelled');
|
||||||
|
}, false);
|
||||||
|
}, function (err) {
|
||||||
|
destroyCameraPreview();
|
||||||
|
errorCallback('Camera intitialization error ' + err);
|
||||||
|
});
|
||||||
|
} else {
|
||||||
|
destroyCameraPreview();
|
||||||
|
errorCallback('Camera not found');
|
||||||
|
}
|
||||||
|
}, errorCallback);
|
||||||
|
};
|
||||||
|
|
||||||
|
var destroyCameraPreview = function () {
|
||||||
|
capturePreview.pause();
|
||||||
|
capturePreview.src = null;
|
||||||
|
[capturePreview, captureCancelButton].forEach(function(elem) {
|
||||||
|
if (elem /* && elem in document.body.childNodes */) {
|
||||||
|
document.body.removeChild(elem);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
if (capture) {
|
||||||
|
capture.stopRecordAsync();
|
||||||
|
capture = null;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
var captureAction = function () {
|
||||||
|
|
||||||
|
var encodingProperties,
|
||||||
|
fileName,
|
||||||
|
generateUniqueCollisionOption = Windows.Storage.CreationCollisionOption.generateUniqueName,
|
||||||
|
tempFolder = Windows.Storage.ApplicationData.current.temporaryFolder,
|
||||||
|
capturedFile;
|
||||||
|
|
||||||
|
if (encodingType == Camera.EncodingType.PNG) {
|
||||||
|
fileName = 'photo.png';
|
||||||
|
encodingProperties = Windows.Media.MediaProperties.ImageEncodingProperties.createPng();
|
||||||
|
} else {
|
||||||
|
fileName = 'photo.jpg';
|
||||||
|
encodingProperties = Windows.Media.MediaProperties.ImageEncodingProperties.createJpeg();
|
||||||
|
}
|
||||||
|
|
||||||
|
tempFolder.createFileAsync(fileName, generateUniqueCollisionOption)
|
||||||
|
.then(function(tempCapturedFile) {
|
||||||
|
capturedFile = tempCapturedFile;
|
||||||
|
return capture.capturePhotoToStorageFileAsync(encodingProperties, capturedFile);
|
||||||
|
})
|
||||||
|
.done(function() {
|
||||||
|
destroyCameraPreview();
|
||||||
|
|
||||||
|
// success callback for capture operation
|
||||||
|
var success = function(capturedfile) {
|
||||||
|
if (destinationType == Camera.DestinationType.FILE_URI || destinationType == Camera.DestinationType.NATIVE_URI) {
|
||||||
|
if (targetHeight > 0 && targetWidth > 0) {
|
||||||
|
resizeImage(successCallback, errorCallback, capturedFile, targetWidth, targetHeight, encodingType);
|
||||||
|
} else {
|
||||||
|
capturedfile.copyAsync(Windows.Storage.ApplicationData.current.localFolder, capturedfile.name, generateUniqueCollisionOption).done(function(copiedfile) {
|
||||||
|
successCallback("ms-appdata:///local/" + copiedfile.name);
|
||||||
|
}, errorCallback);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (targetHeight > 0 && targetWidth > 0) {
|
||||||
|
resizeImageBase64(successCallback, errorCallback, capturedfile, targetWidth, targetHeight);
|
||||||
|
} else {
|
||||||
|
Windows.Storage.FileIO.readBufferAsync(capturedfile).done(function(buffer) {
|
||||||
|
var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
|
||||||
|
capturedfile.deleteAsync().done(function() {
|
||||||
|
successCallback(strBase64);
|
||||||
|
}, function(err) {
|
||||||
|
errorCallback(err);
|
||||||
|
});
|
||||||
|
}, errorCallback);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
if (saveToPhotoAlbum) {
|
||||||
|
/*
|
||||||
|
Need to add and remove an event listener to catch activation state
|
||||||
|
Using FileSavePicker will suspend the app and it's required to catch the pickSaveFileContinuation
|
||||||
|
https://msdn.microsoft.com/en-us/library/windows/apps/xaml/dn631755.aspx
|
||||||
|
*/
|
||||||
|
var cameraActivationHandler = function(eventArgs) {
|
||||||
|
if (eventArgs.kind === Windows.ApplicationModel.Activation.ActivationKind.pickSaveFileContinuation) {
|
||||||
|
var file = eventArgs.file;
|
||||||
|
if (file) {
|
||||||
|
// Prevent updates to the remote version of the file until we're done
|
||||||
|
Windows.Storage.CachedFileManager.deferUpdates(file);
|
||||||
|
capturedFile.moveAndReplaceAsync(file)
|
||||||
|
.then(function() {
|
||||||
|
// Let Windows know that we're finished changing the file so
|
||||||
|
// the other app can update the remote version of the file.
|
||||||
|
return Windows.Storage.CachedFileManager.completeUpdatesAsync(file);
|
||||||
|
})
|
||||||
|
.done(function(updateStatus) {
|
||||||
|
if (updateStatus === Windows.Storage.Provider.FileUpdateStatus.complete) {
|
||||||
|
success(capturedFile);
|
||||||
|
} else {
|
||||||
|
errorCallback();
|
||||||
|
}
|
||||||
|
}, errorCallback);
|
||||||
|
} else {
|
||||||
|
errorCallback();
|
||||||
|
}
|
||||||
|
Windows.UI.WebUI.WebUIApplication.removeEventListener("activated", cameraActivationHandler);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
var savePicker = new Windows.Storage.Pickers.FileSavePicker();
|
||||||
|
savePicker.suggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.documentsLibrary;
|
||||||
|
if (encodingType === Camera.EncodingType.PNG) {
|
||||||
|
savePicker.fileTypeChoices.insert("PNG", [".png"]);
|
||||||
|
} else {
|
||||||
|
savePicker.fileTypeChoices.insert("JPEG", [".jpg"]);
|
||||||
|
}
|
||||||
|
savePicker.suggestedFileName = fileName;
|
||||||
|
Windows.UI.WebUI.WebUIApplication.addEventListener("activated", cameraActivationHandler);
|
||||||
|
savePicker.pickSaveFileAndContinue();
|
||||||
|
} else {
|
||||||
|
success(capturedFile);
|
||||||
|
}
|
||||||
|
}, function(err) {
|
||||||
|
destroyCameraPreview();
|
||||||
|
errorCallback(err);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
try {
|
||||||
|
createCameraUI();
|
||||||
|
startCameraPreview();
|
||||||
|
} catch (ex) {
|
||||||
|
errorCallback(ex);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function takePictureFromCameraWindows(successCallback, errorCallback, args) {
|
||||||
|
var destinationType = args[1],
|
||||||
|
targetWidth = args[3],
|
||||||
|
targetHeight = args[4],
|
||||||
|
encodingType = args[5],
|
||||||
|
allowCrop = !!args[7],
|
||||||
|
saveToPhotoAlbum = args[9],
|
||||||
|
cameraCaptureUI = new Windows.Media.Capture.CameraCaptureUI();
|
||||||
|
cameraCaptureUI.photoSettings.allowCropping = allowCrop;
|
||||||
|
|
||||||
|
if (encodingType == Camera.EncodingType.PNG) {
|
||||||
|
cameraCaptureUI.photoSettings.format = Windows.Media.Capture.CameraCaptureUIPhotoFormat.png;
|
||||||
|
} else {
|
||||||
|
cameraCaptureUI.photoSettings.format = Windows.Media.Capture.CameraCaptureUIPhotoFormat.jpeg;
|
||||||
|
}
|
||||||
|
|
||||||
|
// decide which max pixels should be supported by targetWidth or targetHeight.
|
||||||
|
if (targetWidth >= 1280 || targetHeight >= 960) {
|
||||||
|
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.large3M;
|
||||||
|
} else if (targetWidth >= 1024 || targetHeight >= 768) {
|
||||||
|
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.mediumXga;
|
||||||
|
} else if (targetWidth >= 800 || targetHeight >= 600) {
|
||||||
|
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.mediumXga;
|
||||||
|
} else if (targetWidth >= 640 || targetHeight >= 480) {
|
||||||
|
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.smallVga;
|
||||||
|
} else if (targetWidth >= 320 || targetHeight >= 240) {
|
||||||
|
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.verySmallQvga;
|
||||||
|
} else {
|
||||||
|
cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.highestAvailable;
|
||||||
|
}
|
||||||
|
|
||||||
|
cameraCaptureUI.captureFileAsync(Windows.Media.Capture.CameraCaptureUIMode.photo).done(function(picture) {
|
||||||
|
if (picture) {
|
||||||
|
// save to photo album successCallback
|
||||||
|
var success = function() {
|
||||||
|
if (destinationType == Camera.DestinationType.FILE_URI) {
|
||||||
|
if (targetHeight > 0 && targetWidth > 0) {
|
||||||
|
resizeImage(successCallback, errorCallback, picture, targetWidth, targetHeight, encodingType);
|
||||||
|
} else {
|
||||||
|
var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
|
||||||
|
picture.copyAsync(storageFolder, picture.name, Windows.Storage.NameCollisionOption.replaceExisting).done(function(storageFile) {
|
||||||
|
successCallback("ms-appdata:///local/" + storageFile.name);
|
||||||
|
}, errorCallback);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (targetHeight > 0 && targetWidth > 0) {
|
||||||
|
resizeImageBase64(successCallback, errorCallback, picture, targetWidth, targetHeight);
|
||||||
|
} else {
|
||||||
|
Windows.Storage.FileIO.readBufferAsync(picture).done(function(buffer) {
|
||||||
|
var strBase64 = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(buffer);
|
||||||
|
successCallback(strBase64);
|
||||||
|
}, errorCallback);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// save to photo album errorCallback
|
||||||
|
var fail = function() {
|
||||||
|
//errorCallback("FileError, code:" + fileError.code);
|
||||||
|
errorCallback("Save fail.");
|
||||||
|
};
|
||||||
|
|
||||||
|
if (saveToPhotoAlbum) {
|
||||||
|
var savePicker = new Windows.Storage.Pickers.FileSavePicker();
|
||||||
|
|
||||||
|
savePicker.suggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.documentsLibrary;
|
||||||
|
if (encodingType === Camera.EncodingType.PNG) {
|
||||||
|
savePicker.fileTypeChoices.insert("PNG", [".png"]);
|
||||||
|
savePicker.suggestedFileName = "photo.png";
|
||||||
|
} else {
|
||||||
|
savePicker.fileTypeChoices.insert("JPEG", [".jpg"]);
|
||||||
|
savePicker.suggestedFileName = "photo.jpg";
|
||||||
|
}
|
||||||
|
|
||||||
|
savePicker.pickSaveFileAsync()
|
||||||
|
.done(function(file) {
|
||||||
|
if (file) {
|
||||||
|
// Prevent updates to the remote version of the file until we're done
|
||||||
|
Windows.Storage.CachedFileManager.deferUpdates(file);
|
||||||
|
picture.moveAndReplaceAsync(file)
|
||||||
|
.then(function() {
|
||||||
|
// Let Windows know that we're finished changing the file so
|
||||||
|
// the other app can update the remote version of the file.
|
||||||
|
return Windows.Storage.CachedFileManager.completeUpdatesAsync(file);
|
||||||
|
})
|
||||||
|
.done(function(updateStatus) {
|
||||||
|
if (updateStatus === Windows.Storage.Provider.FileUpdateStatus.complete) {
|
||||||
|
success();
|
||||||
|
} else {
|
||||||
|
fail();
|
||||||
|
}
|
||||||
|
}, fail);
|
||||||
|
} else {
|
||||||
|
fail();
|
||||||
|
}
|
||||||
|
}, fail);
|
||||||
|
} else {
|
||||||
|
success();
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
errorCallback("User didn't capture a photo.");
|
||||||
|
}
|
||||||
|
}, function() {
|
||||||
|
errorCallback("Fail to capture a photo.");
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
require("cordova/exec/proxy").add("Camera",module.exports);
|
require("cordova/exec/proxy").add("Camera",module.exports);
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user