owncloud / gallery

/**

 * OCA.FileList methods needed for file uploading

 *

 * This hack makes it possible to use the Files scripts as is, without having to import and

 * maintain them in Gallery

 *

 * Empty methods are for the "new" button, if we want to implement that one day

 *

 * @type {{inList: FileList.inList, lastAction: FileList.lastAction, getUniqueName:

 *     FileList.getUniqueName, getCurrentDirectory: FileList.getCurrentDirectory, add:

 *     FileList.add, checkName: FileList.checkName}}

 */

	/**

	 * Makes sure the filename does not exist

	 *

	 * Gives an early chance to the user to abort the action, before uploading everything to the

	 * server.

	 * Albums are not supported as we don't have a full list of images contained in a sub-album

	 *

	 * @param fileName

	 * @returns {*}

	 */

	findFile: function (fileName) {

		"use strict";

		var path = Gallery.currentAlbum + '/' + fileName;

		var galleryImage = Gallery.imageMap[path];

		if (galleryImage) {

			var fileInfo = {

				name: fileName,

				directory: Gallery.currentAlbum,

				path: path,

				etag: galleryImage.etag,

				mtime: galleryImage.mTime * 1000, // Javascript gives the Epoch time in milliseconds

				size: galleryImage.size

			};

			return fileInfo;

			return null;

		}

	},

	/**

	 * Create an empty file inside the current album.

	 *

	 * @param {string} name name of the file

	 *

	 * @return {Promise} promise that will be resolved after the

	 * file was created

	 *

	 */

	createFile: function(name) {

		var self = this;

		var deferred = $.Deferred();

		var promise = deferred.promise();

		OCA.Files.isFileNameValid(name);

		var targetPath = this.getCurrentDirectory() + '/' + name;

		//Check if file already exists

		if(Gallery.imageMap[targetPath]) {

			OC.Notification.showTemporary(

				t('files', 'Could not create file "{file}" because it already exists', {file: name})

			);

			deferred.reject();

			return promise;

		}

		Gallery.filesClient.putFileContents(

			targetPath,

			'',

			{

				contentType: 'text/plain',

				overwrite: true

			}

			)

			.done(function() {

				// TODO: error handling / conflicts

				Gallery.filesClient.getFileInfo(

					targetPath, {

						properties: self.findFile(targetPath)

					}

					)

					.then(function(status, data) {

						deferred.resolve(status, data);

					})

					.fail(function(status) {

						OC.Notification.showTemporary(t('files', 'Could not create file "{file}"', {file: name}));

						deferred.reject(status);

					});

			})

			.fail(function(status) {

				if (status === 412) {

					OC.Notification.showTemporary(

						t('files', 'Could not create file "{file}" because it already exists', {file: name})

					);

				} else {

					OC.Notification.showTemporary(t('files', 'Could not create file "{file}"', {file: name}));

				}

				deferred.reject(status);

			});

		return promise;

	},

	/**

	 * Retrieves the current album

	 *

	 * @returns {string}

	 */

	getCurrentDirectory: function () {

		"use strict";

		// In Files, dirs start with a /

		return '/' + Gallery.currentAlbum;

	},

/**

 * OCA.Files methods needed for file uploading

 *

 * This hack makes it possible to use the Files scripts as is, without having to import and

 * maintain them in Gallery

 *

 * @type {{isFileNameValid: Files.isFileNameValid, generatePreviewUrl: Files.generatePreviewUrl}}

 */

var Files = {

	App: {fileList: {}},

	isFileNameValid: function (name) {

		"use strict";

		var trimmedName = name.trim();

		if (trimmedName === '.' || trimmedName === '..') {

			throw t('files', '"{name}" is an invalid file name.', {name: name});

		} else if (trimmedName.length === 0) {

			throw t('files', 'File name cannot be empty.');

		}

		return true;

	},

	/**

	 * Generates a preview for the conflict dialogue

	 *

	 * Since Gallery uses the fileId and Files uses the path, we have to use the preview endpoint

	 * of Files

	 */

	generatePreviewUrl: function (urlSpec) {

		"use strict";

		var previewUrl;

		var path = urlSpec.file;

		// In Files, root files start with //

		if (path.indexOf('//') === 0) {

			path = path.substring(2);

		} else {

			// Directories start with /

			path = path.substring(1);

		}

		if (Gallery.imageMap[path]) {

			var fileId = Gallery.imageMap[path].fileId;

			var thumbnail = Thumbnails.map[fileId];

			previewUrl = thumbnail.image.src;

		} else {

			var previewDimension = 96;

			urlSpec.x = Math.ceil(previewDimension * window.devicePixelRatio);

			urlSpec.y = Math.ceil(previewDimension * window.devicePixelRatio);

			urlSpec.forceIcon = 0;

			previewUrl = OC.generateUrl('/core/preview.png?') + $.param(urlSpec);

		}

		return previewUrl;

	}

};

OCA.Files = Files;

OCA.Files.App.fileList = FileList;