diff options
Diffstat (limited to 'syweb/webclient/components/fileUpload/file-upload-service.js')
| -rw-r--r-- | syweb/webclient/components/fileUpload/file-upload-service.js | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/syweb/webclient/components/fileUpload/file-upload-service.js b/syweb/webclient/components/fileUpload/file-upload-service.js new file mode 100644 index 0000000000..b544e29509 --- /dev/null +++ b/syweb/webclient/components/fileUpload/file-upload-service.js @@ -0,0 +1,180 @@ +/* + Copyright 2014 OpenMarket Ltd + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + */ + +'use strict'; + +// TODO determine if this is really required as a separate service to matrixService. +/* + * Upload an HTML5 file to a server + */ +angular.module('mFileUpload', ['matrixService', 'mUtilities']) +.service('mFileUpload', ['$q', 'matrixService', 'mUtilities', function ($q, matrixService, mUtilities) { + + /* + * Upload an HTML5 file or blob to a server and returned a promise + * that will provide the URL of the uploaded file. + * @param {File|Blob} file the file data to send + */ + this.uploadFile = function(file) { + var deferred = $q.defer(); + console.log("Uploading " + file.name + "... to /_matrix/content"); + matrixService.uploadContent(file).then( + function(response) { + var content_url = response.data.content_token; + console.log(" -> Successfully uploaded! Available at " + content_url); + deferred.resolve(content_url); + }, + function(error) { + console.log(" -> Failed to upload " + file.name); + deferred.reject(error); + } + ); + + return deferred.promise; + }; + + /* + * Upload an image file plus generate a thumbnail of it and upload it so that + * we will have all information to fulfill an image message request data. + * @param {File} imageFile the imageFile to send + * @param {Integer} thumbnailSize the max side size of the thumbnail to create + * @returns {promise} A promise that will be resolved by a image message object + * ready to be send with the Matrix API + */ + this.uploadImageAndThumbnail = function(imageFile, thumbnailSize) { + var self = this; + var deferred = $q.defer(); + + console.log("uploadImageAndThumbnail " + imageFile.name + " - thumbnailSize: " + thumbnailSize); + + // The message structure that will be returned in the promise + var imageMessage = { + msgtype: "m.image", + url: undefined, + body: "Image", + info: { + size: undefined, + w: undefined, + h: undefined, + mimetype: undefined + }, + thumbnail_url: undefined, + thumbnail_info: { + size: undefined, + w: undefined, + h: undefined, + mimetype: undefined + } + }; + + // First, get the image size + mUtilities.getImageSize(imageFile).then( + function(size) { + console.log("image size: " + JSON.stringify(size)); + + // The final operation: send imageFile + var uploadImage = function() { + self.uploadFile(imageFile).then( + function(url) { + // Update message metadata + imageMessage.url = url; + imageMessage.info = { + size: imageFile.size, + w: size.width, + h: size.height, + mimetype: imageFile.type + }; + + // If there is no thumbnail (because the original image is smaller than thumbnailSize), + // reuse the original image info for thumbnail data + if (!imageMessage.thumbnail_url) { + imageMessage.thumbnail_url = imageMessage.url; + imageMessage.thumbnail_info = imageMessage.info; + } + + // We are done + deferred.resolve(imageMessage); + }, + function(error) { + console.log(" -> Can't upload image"); + deferred.reject(error); + } + ); + }; + + // Create a thumbnail if the image size exceeds thumbnailSize + if (Math.max(size.width, size.height) > thumbnailSize) { + console.log(" Creating thumbnail..."); + mUtilities.resizeImage(imageFile, thumbnailSize).then( + function(thumbnailBlob) { + + // Get its size + mUtilities.getImageSize(thumbnailBlob).then( + function(thumbnailSize) { + console.log(" -> Thumbnail size: " + JSON.stringify(thumbnailSize)); + + // Upload it to the server + self.uploadFile(thumbnailBlob).then( + function(thumbnailUrl) { + + // Update image message data + imageMessage.thumbnail_url = thumbnailUrl; + imageMessage.thumbnail_info = { + size: thumbnailBlob.size, + w: thumbnailSize.width, + h: thumbnailSize.height, + mimetype: thumbnailBlob.type + }; + + // Then, upload the original image + uploadImage(); + }, + function(error) { + console.log(" -> Can't upload thumbnail"); + deferred.reject(error); + } + ); + }, + function(error) { + console.log(" -> Failed to get thumbnail size"); + deferred.reject(error); + } + ); + + }, + function(error) { + console.log(" -> Failed to create thumbnail: " + error); + deferred.reject(error); + } + ); + } + else { + // No need of thumbnail + console.log(" Thumbnail is not required"); + uploadImage(); + } + + }, + function(error) { + console.log(" -> Failed to get image size"); + deferred.reject(error); + } + ); + + return deferred.promise; + }; + +}]); |