1 files changed, 91 insertions, 0 deletions
diff --git a/apps/files_versions/js/versioncollection.js b/apps/files_versions/js/versioncollection.js
new file mode 100644
index 00000000000..3f8214cde8c
--- /dev/null
+++ b/apps/files_versions/js/versioncollection.js
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2015
+ *
+ * This file is licensed under the Affero General Public License version 3
+ * or later.
+ *
+ * See the COPYING-README file.
+ *
+ */
+
+(function() {
+	/**
+	 * @memberof OCA.Versions
+	 */
+	var VersionCollection = OC.Backbone.Collection.extend({
+		model: OCA.Versions.VersionModel,
+
+		/**
+		 * @var OCA.Files.FileInfoModel
+		 */
+		_fileInfo: null,
+
+		_endReached: false,
+		_currentIndex: 0,
+
+		url: function() {
+			var url = OC.generateUrl('/apps/files_versions/ajax/getVersions.php');
+			var query = {
+				source: this._fileInfo.getFullPath(),
+				start: this._currentIndex
+			};
+			return url + '?' + OC.buildQueryString(query);
+		},
+
+		setFileInfo: function(fileInfo) {
+			this._fileInfo = fileInfo;
+			// reset
+			this._endReached = false;
+			this._currentIndex = 0;
+		},
+
+		getFileInfo: function() {
+			return this._fileInfo;
+		},
+
+		hasMoreResults: function() {
+			return !this._endReached;
+		},
+
+		fetch: function(options) {
+			if (!options || options.remove) {
+				this._currentIndex = 0;
+			}
+			return OC.Backbone.Collection.prototype.fetch.apply(this, arguments);
+		},
+
+		/**
+		 * Fetch the next set of results
+		 */
+		fetchNext: function() {
+			if (!this.hasMoreResults()) {
+				return null;
+			}
+			if (this._currentIndex === 0) {
+				return this.fetch();
+			}
+			return this.fetch({remove: false});
+		},
+
+		parse: function(result) {
+			var results = _.map(result.data.versions, function(version) {
+				var revision = parseInt(version.version, 10);
+				return {
+					id: revision,
+					name: version.name,
+					fullPath: version.path,
+					timestamp: revision,
+					size: version.size
+				};
+			});
+			this._endReached = result.data.endReached;
+			this._currentIndex += results.length;
+			return results;
+		}
+	});
+
+	OCA.Versions = OCA.Versions || {};
+
+	OCA.Versions.VersionCollection = VersionCollection;
+})();
+