Fix some bugs in drag to create event

- Firefox opened 2 popups, one for span and one for end time
- Dragging existing events longer or shorter created a new event also
- Did not work in dayview
- Categories from category planner were not set

calendar/js/et2_widget_daycol.js

@@ -1058,6 +1058,9 @@ var et2_calendar_daycol = (function(){ "use strict"; return et2_valueWidget.exte
 	 */
 	click: function(_ev)
 	{
+		// Drag to create in progress
+		if(this._parent.drag_create.start !== null) return;
+
 		// Click on the title
 		if (jQuery(_ev.target).hasClass('calendar_calAddEvent'))
 		{

calendar/js/et2_widget_planner.js

@@ -167,6 +167,21 @@ var et2_calendar_planner = (function(){ "use strict"; return et2_calendar_view.e
 						}
 					},
 
+					/**
+					 * If dragging to resize an event, abort drag to create
+					 *
+					 * @param {jQuery.Event} event
+					 * @param {Object} ui
+					 */
+					start: function(event, ui)
+					{
+						if(planner.drag_create.start)
+						{
+							// Abort drag to create, we're dragging to resize
+							planner._drag_create_end({});
+						}
+					},
+
 					/**
 					 * Triggered at the end of resizing the calEvent.
 					 *
@@ -646,7 +661,7 @@ var et2_calendar_planner = (function(){ "use strict"; return et2_calendar_view.e
 
 						// Get its children immediately
 						egw.json(
-							this.getInstanceManager().app+'.etemplate_widget_menupopup.ajax_get_options.etemplate',
+							'EGroupware\\Api\\Etemplate\\Widget\\Select::ajax_get_options',
 							['select-cat',',,,calendar,'+cat_id[i]],
 							function(data) {
 								labels = labels.concat(data);