Generate thumbnail client side and send its URL and info with the image message body
This commit is contained in:
Emmanuel ROHEE
parent
9d4bc8985f
commit
aac52fce15
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@ -20,17 +20,18 @@
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/*
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* Upload an HTML5 file to a server
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*/
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angular.module('mFileUpload', [])
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.service('mFileUpload', ['matrixService', '$q', function (matrixService, $q) {
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angular.module('mFileUpload', ['matrixService', 'mUtilities'])
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.service('mFileUpload', ['$q', 'matrixService', 'mUtilities', function ($q, matrixService, mUtilities) {
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/*
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* Upload an HTML5 file to a server and returned a promise
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* Upload an HTML5 file or blob to a server and returned a promise
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* that will provide the URL of the uploaded file.
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* @param {File|Blob} file the file data to send
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*/
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this.uploadFile = function(file, body) {
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this.uploadFile = function(file) {
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var deferred = $q.defer();
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console.log("Uploading " + file.name + "... to /matrix/content");
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matrixService.uploadContent(file, body).then(
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matrixService.uploadContent(file).then(
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function(response) {
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var content_url = location.origin + "/matrix/content/" + response.data.content_token;
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console.log(" -> Successfully uploaded! Available at " + content_url);
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@ -44,4 +45,134 @@ angular.module('mFileUpload', [])
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return deferred.promise;
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};
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/*
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* Upload an image file plus generate a thumbnail of it and upload it so that
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* we will have all information to fulfill an image message request data.
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* @param {File} imageFile the imageFile to send
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* @param {Integer} thumbnailSize the max side size of the thumbnail to create
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* @returns {promise} A promise that will be resolved by a image message object
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* ready to be send with the Matrix API
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*/
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this.uploadImageAndThumbnail = function(imageFile, thumbnailSize) {
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var self = this;
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var deferred = $q.defer();
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console.log("uploadImageAndThumbnail " + imageFile.name + " - thumbnailSize: " + thumbnailSize);
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// The message structure that will be returned in the promise
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var imageMessage = {
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msgtype: "m.image",
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url: undefined,
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body: {
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size: undefined,
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w: undefined,
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h: undefined,
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mimetype: undefined
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},
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thumbnail_url: undefined,
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thumbnail_info: {
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size: undefined,
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w: undefined,
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h: undefined,
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mimetype: undefined
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}
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};
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// First, get the image size
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mUtilities.getImageSize(imageFile).then(
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function(size) {
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// The final operation: send imageFile
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var uploadImage = function() {
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self.uploadFile(imageFile).then(
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function(url) {
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// Update message metadata
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imageMessage.url = url;
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imageMessage.body = {
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size: imageFile.size,
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w: size.width,
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h: size.height,
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mimetype: imageFile.type
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};
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// If there is no thumbnail (because the original image is smaller than thumbnailSize),
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// reuse the original image info for thumbnail data
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if (!imageMessage.thumbnail_url) {
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imageMessage.thumbnail_url = imageMessage.url;
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imageMessage.thumbnail_info = imageMessage.body;
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}
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// We are done
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deferred.resolve(imageMessage);
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},
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function(error) {
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console.log(" -> Can't upload image");
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deferred.reject(error);
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}
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);
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};
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// Create a thumbnail if the image size exceeds thumbnailSize
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if (Math.max(size.width, size.height) > thumbnailSize) {
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console.log(" Creating thumbnail...");
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mUtilities.resizeImage(imageFile, thumbnailSize).then(
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function(thumbnailBlob) {
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// Get its size
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mUtilities.getImageSize(thumbnailBlob).then(
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function(thumbnailSize) {
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console.log(" -> Thumbnail size: " + JSON.stringify(thumbnailSize));
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// Upload it to the server
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self.uploadFile(thumbnailBlob).then(
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function(thumbnailUrl) {
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// Update image message data
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imageMessage.thumbnail_url = thumbnailUrl;
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imageMessage.thumbnail_info = {
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size: thumbnailBlob.size,
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w: thumbnailSize.width,
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h: thumbnailSize.height,
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mimetype: thumbnailBlob.type
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};
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// Then, upload the original image
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uploadImage();
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},
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function(error) {
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console.log(" -> Can't upload thumbnail");
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deferred.reject(error);
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}
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);
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},
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function(error) {
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console.log(" -> Failed to get thumbnail size");
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deferred.reject(error);
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}
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);
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},
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function(error) {
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console.log(" -> Failed to create thumbnail: " + error);
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deferred.reject(error);
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}
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);
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}
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else {
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// No need of thumbnail
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console.log(" Thumbnail is not required");
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uploadImage();
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}
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},
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function(error) {
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console.log(" -> Failed to get image size");
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deferred.reject(error);
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}
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);
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return deferred.promise;
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};
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}]);
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@ -23,7 +23,7 @@ angular.module('mUtilities', [])
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.service('mUtilities', ['$q', function ($q) {
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/*
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* Get the size of an image
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* @param {File} imageFile the file containing the image
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* @param {File|Blob} imageFile the file containing the image
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* @returns {promise} A promise that will be resolved by an object with 2 members:
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* width & height
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*/
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@ -19,6 +19,7 @@ angular.module('RoomController', ['ngSanitize', 'mUtilities'])
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function($scope, $http, $timeout, $routeParams, $location, matrixService, eventStreamService, eventHandlerService, mFileUpload, mUtilities) {
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'use strict';
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var MESSAGES_PER_PAGINATION = 30;
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var THUMBNAIL_SIZE = 320;
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// Room ids. Computed and resolved in onInit
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$scope.room_id = undefined;
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@ -386,33 +387,22 @@ angular.module('RoomController', ['ngSanitize', 'mUtilities'])
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$scope.state.sending = true;
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// First, get the image sise
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mUtilities.getImageSize($scope.imageFileToSend).then(
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function(size) {
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// Upload the image to the Internet
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console.log("Uploading image...");
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mFileUpload.uploadFile($scope.imageFileToSend).then(
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function(url) {
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// Build the image info data
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var imageInfo = {
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size: $scope.imageFileToSend.size,
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mimetype: $scope.imageFileToSend.type,
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w: size.width,
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h: size.height
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};
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// Then share the URL and the metadata
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$scope.sendImage(url, imageInfo);
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// Upload this image with its thumbnail to Internet
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mFileUpload.uploadImageAndThumbnail($scope.imageFileToSend, THUMBNAIL_SIZE).then(
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function(imageMessage) {
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// imageMessage is complete message structure, send it as is
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matrixService.sendMessage($scope.room_id, undefined, imageMessage).then(
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function() {
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console.log("Image message sent");
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$scope.state.sending = false;
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},
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function(error) {
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$scope.feedback = "Can't upload image";
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$scope.feedback = "Failed to send image message: " + error.data.error;
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$scope.state.sending = false;
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}
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);
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});
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},
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function(error) {
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$scope.feedback = "Can't get selected image size";
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$scope.feedback = "Can't upload image";
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$scope.state.sending = false;
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}
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);
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