mirror of
https://github.com/apache/cordova-plugin-camera.git
synced 2025-02-23 14:52:59 +08:00
CB-8706, CB-8707 saveToPhotoAlbum improvements and some refactoring
- On Windows we should use filePicker instead of programmatically accessing user libs. This way the app doesnt have to depend on extra capabilities. - Some refactoring to help on navigating code easier This closes #78
This commit is contained in:
Vladimir Kotikov
commit
3927735d09
11
plugin.xml
11
plugin.xml
@ -241,16 +241,7 @@
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<!-- windows -->
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<platform name="windows">
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<config-file target="package.windows.appxmanifest" parent="/Package/Capabilities">
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<Capability Name="picturesLibrary" />
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<DeviceCapability Name="webcam" />
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</config-file>
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<config-file target="package.windows80.appxmanifest" parent="/Package/Capabilities">
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<Capability Name="picturesLibrary" />
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<DeviceCapability Name="webcam" />
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</config-file>
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<config-file target="package.phone.appxmanifest" parent="/Package/Capabilities">
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<Capability Name="picturesLibrary" />
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<config-file target="package.appxmanifest" parent="/Package/Capabilities">
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<DeviceCapability Name="webcam" />
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</config-file>
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<js-module src="www/CameraPopoverHandle.js" name="CameraPopoverHandle">
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@ -19,11 +19,11 @@
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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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Camera = require('./Camera');
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var Camera = require('./Camera');
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module.exports = {
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@ -43,399 +43,472 @@ module.exports = {
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// 11 cameraDirection:0
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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 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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// 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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takePictureFromFile(successCallback, errorCallback, args);
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} else {
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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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capturedFile.copyAsync(Windows.Storage.KnownFolders.picturesLibrary, capturedFile.name, generateUniqueCollisionOption)
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.done(function() {
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success(capturedFile);
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}, errorCallback);
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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.
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if (targetWidth >= 1280 || targetHeight >= 960) {
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cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.large3M;
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} else if (targetWidth >= 1024 || targetHeight >= 768) {
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cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.mediumXga;
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} else if (targetWidth >= 800 || targetHeight >= 600) {
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cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.mediumXga;
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} else if (targetWidth >= 640 || targetHeight >= 480) {
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cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.smallVga;
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} else if (targetWidth >= 320 || targetHeight >= 240) {
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cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.verySmallQvga;
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} else {
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cameraCaptureUI.photoSettings.maxResolution = Windows.Media.Capture.CameraCaptureUIMaxPhotoResolution.highestAvailable;
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}
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cameraCaptureUI.captureFileAsync(Windows.Media.Capture.CameraCaptureUIMode.photo).then(function(picture) {
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if (picture) {
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// save to photo album successCallback
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var success = function() {
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if (destinationType == Camera.DestinationType.FILE_URI) {
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if (targetHeight > 0 && targetWidth > 0) {
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resizeImage(picture);
|
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} else {
|
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var storageFolder = Windows.Storage.ApplicationData.current.localFolder;
|
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picture.copyAsync(storageFolder, picture.name, Windows.Storage.NameCollisionOption.replaceExisting).then(function(storageFile) {
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successCallback("ms-appdata:///local/" + storageFile.name);
|
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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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} else {
|
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if (targetHeight > 0 && targetWidth > 0) {
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resizeImageBase64(picture);
|
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} else {
|
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Windows.Storage.FileIO.readBufferAsync(picture).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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};
|
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// save to photo album errorCallback
|
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var fail = function() {
|
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//errorCallback("FileError, code:" + fileError.code);
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errorCallback("Save fail.");
|
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};
|
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|
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if (saveToPhotoAlbum) {
|
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Windows.Storage.StorageFile.getFileFromPathAsync(picture.path).then(function(storageFile) {
|
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storageFile.copyAsync(Windows.Storage.KnownFolders.picturesLibrary, picture.name, Windows.Storage.NameCollisionOption.generateUniqueName).then(function(storageFile) {
|
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success();
|
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}, function() {
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fail();
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});
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});
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} else {
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success();
|
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}
|
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} else {
|
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errorCallback("User didn't capture a photo.");
|
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}
|
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}, function() {
|
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errorCallback("Fail to capture a photo.");
|
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});
|
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}
|
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takePictureFromCamera(successCallback, errorCallback, args);
|
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}
|
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}
|
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};
|
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|
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|
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// Resize method
|
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function resizeImage(successCallback, errorCallback, file, targetWidth, targetHeight, encodingType) {
|
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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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|
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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) { return 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;
|
||||
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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var storageFileName;
|
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|
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canvas.width = imageWidth;
|
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canvas.height = imageHeight;
|
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|
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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) {
|
||||
errorCallback("User didn't choose a file.");
|
||||
return;
|
||||
}
|
||||
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);
|
||||
}
|
||||
}
|
||||
}, 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) {
|
||||
destroyCameraPreview();
|
||||
errorCallback('Camera not found');
|
||||
return;
|
||||
}
|
||||
|
||||
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);
|
||||
});
|
||||
}, 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) {
|
||||
success(capturedFile);
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
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();
|
||||
}, 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) {
|
||||
errorCallback("User didn't capture a photo.");
|
||||
return;
|
||||
}
|
||||
|
||||
// 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) {
|
||||
success();
|
||||
return;
|
||||
}
|
||||
|
||||
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);
|
||||
}, function() {
|
||||
errorCallback("Fail to capture a photo.");
|
||||
});
|
||||
}
|
||||
|
||||
require("cordova/exec/proxy").add("Camera",module.exports);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user