From 29386eccf96aec3e6a4c776f43e74c95474697bb Mon Sep 17 00:00:00 2001
From: Vincent Petry <pvince81@owncloud.com>
Date: Thu, 28 Jan 2016 14:24:12 +0100
Subject: Add pagination support for comments GUI

---
 apps/comments/js/commentcollection.js | 54 +++++++++++++++++++++++++++--------
 apps/comments/js/commentstabview.js   |  7 ++---
 2 files changed, 45 insertions(+), 16 deletions(-)

(limited to 'apps/comments/js')

diff --git a/apps/comments/js/commentcollection.js b/apps/comments/js/commentcollection.js
index 61b5adb7da7..1fda4a4c709 100644
--- a/apps/comments/js/commentcollection.js
+++ b/apps/comments/js/commentcollection.js
@@ -10,9 +10,7 @@
 
 (function(OC, OCA) {
 
-	function filterFunction(model, term) {
-		return model.get('name').substr(0, term.length) === term;
-	}
+	var NS_OWNCLOUD = 'http://owncloud.org/ns';
 
 	/**
 	 * @class OCA.Comments.CommentsCollection
@@ -32,7 +30,7 @@
 		_objectId: null,
 
 		_endReached: false,
-		_currentIndex: 0,
+		_limit : 5,
 
 		initialize: function(models, options) {
 			options = options || {};
@@ -58,22 +56,54 @@
 			return !this._endReached;
 		},
 
+		reset: function() {
+			this._endReached = false;
+			return OC.Backbone.Collection.prototype.reset.apply(this, arguments);
+		},
+
 		/**
 		 * Fetch the next set of results
 		 */
-		fetchNext: function() {
+		fetchNext: function(options) {
+			var self = this;
 			if (!this.hasMoreResults()) {
 				return null;
 			}
-			if (this._currentIndex === 0) {
-				return this.fetch();
+
+			var body = '<?xml version="1.0" encoding="utf-8" ?>\n' +
+				'<D:report xmlns:D="DAV:" xmlns:oc="http://owncloud.org/ns">\n' +
+				'   <oc:limit>' + this._limit + '</oc:limit>\n';
+
+			if (this.length > 0) {
+				body += '   <oc:datetime>' + this.first().get('creationDateTime') + '</oc:datetime>\n';
 			}
-			return this.fetch({remove: false});
-		},
 
-		reset: function() {
-			this._currentIndex = 0;
-			OC.Backbone.Collection.prototype.reset.apply(this, arguments);
+			body += '</D:report>\n';
+
+			var oldLength = this.length;
+
+			options = options || {};
+			var success = options.success;
+			options = _.extend({
+				remove: false,
+				data: body,
+				davProperties: CommentsCollection.prototype.model.prototype.davProperties,
+				success: function(resp) {
+					if (resp.length === oldLength) {
+						// no new entries, end reached
+						self._endReached = true;
+					}
+					if (!self.set(resp, options)) {
+						return false;
+					}
+					if (success) {
+						success.apply(null, arguments);
+					}
+					self.trigger('sync', 'REPORT', self, options);
+				}
+			}, options);
+
+			return this.sync('REPORT', this, options);
 		}
 	});
 
diff --git a/apps/comments/js/commentstabview.js b/apps/comments/js/commentstabview.js
index b1a3f854fe1..6e511732803 100644
--- a/apps/comments/js/commentstabview.js
+++ b/apps/comments/js/commentstabview.js
@@ -19,10 +19,8 @@
 		'   </ul>' +
 		'</div>' +
 		'<div class="empty hidden">{{emptyResultLabel}}</div>' +
-		/*
 		'<input type="button" class="showMore hidden" value="{{moreLabel}}"' +
 		' name="show-more" id="show-more" />' +
-		*/
 		'<div class="loading hidden" style="height: 50px"></div>';
 
 	var COMMENT_TEMPLATE =
@@ -44,7 +42,8 @@
 		className: 'tab commentsTabView',
 
 		events: {
-			'submit .newCommentForm': '_onSubmitComment'
+			'submit .newCommentForm': '_onSubmitComment',
+			'click .showMore': '_onClickShowMore'
 		},
 
 		initialize: function() {
@@ -144,7 +143,7 @@
 			this.collection.fetchNext();
 		},
 
-		_onClickShowMoreVersions: function(ev) {
+		_onClickShowMore: function(ev) {
 			ev.preventDefault();
 			this.nextPage();
 		},
-- 
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