Updated Sortable JS pluginsortable-version-update

Fixes an issue in Safari that stops issues from being draggable

Closes #23048

3 files changed, 149 insertions, 55 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 372ddecc98b..9491be9cd1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@ Please view this file on the master branch, on stable branches it's out of date.
 - Escape ref and path for relative links !6050 (winniehell)
 - Fixed link typo on /help/ui to Alerts section. !6915 (Sam Rose)
 - Fix filtering of milestones with quotes in title (airatshigapov)
+- Fix issue boards dragging bug in Safari
 - Refactor less readable existance checking code from CoffeeScript !6289 (jlogandavison)
 - Update mail_room and enable sentinel support to Reply By Email (!7101)
 - Add task completion status in Issues and Merge Requests tabs: "X of Y tasks completed" (!6527, @gmesalazar)
diff --git a/app/assets/stylesheets/pages/boards.scss b/app/assets/stylesheets/pages/boards.scss
index ef6833c9845..608804c63ec 100644
--- a/app/assets/stylesheets/pages/boards.scss
+++ b/app/assets/stylesheets/pages/boards.scss
@@ -12,6 +12,10 @@
   opacity: 1!important;
 
   * {
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
     // !important to make sure no style can override this when dragging
     cursor: -webkit-grabbing!important;
     cursor: grabbing!important;
diff --git a/vendor/assets/javascripts/Sortable.js b/vendor/assets/javascripts/Sortable.js
index eca7c5012b2..f9e57bcb855 100644
--- a/vendor/assets/javascripts/Sortable.js
+++ b/vendor/assets/javascripts/Sortable.js
@@ -4,8 +4,7 @@
  * @license MIT
  */
 
-
-(function (factory) {
+(function sortableModule(factory) {
 	"use strict";
 
 	if (typeof define === "function" && define.amd) {
@@ -15,15 +14,22 @@
 		module.exports = factory();
 	}
 	else if (typeof Package !== "undefined") {
+		//noinspection JSUnresolvedVariable
 		Sortable = factory();  // export for Meteor.js
 	}
 	else {
 		/* jshint sub:true */
 		window["Sortable"] = factory();
 	}
-})(function () {
+})(function sortableFactory() {
 	"use strict";
 
+	if (typeof window == "undefined" || !window.document) {
+		return function sortableError() {
+			throw new Error("Sortable.js requires a window with a document");
+		};
+	}
+
 	var dragEl,
 		parentEl,
 		ghostEl,
@@ -33,6 +39,7 @@
 
 		scrollEl,
 		scrollParentEl,
+		scrollCustomFn,
 
 		lastEl,
 		lastCSS,
@@ -42,6 +49,8 @@
 		newIndex,
 
 		activeGroup,
+		putSortable,
+
 		autoScroll = {},
 
 		tapEvt,
@@ -58,8 +67,15 @@
 		document = win.document,
 		parseInt = win.parseInt,
 
+		$ = win.jQuery || win.Zepto,
+		Polymer = win.Polymer,
+
 		supportDraggable = !!('draggable' in document.createElement('div')),
 		supportCssPointerEvents = (function (el) {
+			// false when IE11
+			if (!!navigator.userAgent.match(/Trident.*rv[ :]?11\./)) {
+				return false;
+			}
 			el = document.createElement('x');
 			el.style.cssText = 'pointer-events:auto';
 			return el.style.pointerEvents === 'auto';
@@ -88,13 +104,17 @@
 					winHeight = window.innerHeight,
 
 					vx,
-					vy
+					vy,
+
+					scrollOffsetX,
+					scrollOffsetY
 				;
 
 				// Delect scrollEl
 				if (scrollParentEl !== rootEl) {
 					scrollEl = options.scroll;
 					scrollParentEl = rootEl;
+					scrollCustomFn = options.scrollFn;
 
 					if (scrollEl === true) {
 						scrollEl = rootEl;
@@ -136,11 +156,18 @@
 
 					if (el) {
 						autoScroll.pid = setInterval(function () {
+							scrollOffsetY = vy ? vy * speed : 0;
+							scrollOffsetX = vx ? vx * speed : 0;
+
+							if ('function' === typeof(scrollCustomFn)) {
+								return scrollCustomFn.call(_this, scrollOffsetX, scrollOffsetY, evt);
+							}
+
 							if (el === win) {
-								win.scrollTo(win.pageXOffset + vx * speed, win.pageYOffset + vy * speed);
+								win.scrollTo(win.pageXOffset + scrollOffsetX, win.pageYOffset + scrollOffsetY);
 							} else {
-								vy && (el.scrollTop += vy * speed);
-								vx && (el.scrollLeft += vx * speed);
+								el.scrollTop += scrollOffsetY;
+								el.scrollLeft += scrollOffsetX;
 							}
 						}, 24);
 					}
@@ -149,19 +176,39 @@
 		}, 30),
 
 		_prepareGroup = function (options) {
-			var group = options.group;
+			function toFn(value, pull) {
+				if (value === void 0 || value === true) {
+					value = group.name;
+				}
 
-			if (!group || typeof group != 'object') {
-				group = options.group = {name: group};
+				if (typeof value === 'function') {
+					return value;
+				} else {
+					return function (to, from) {
+						var fromGroup = from.options.group.name;
+
+						return pull
+							? value
+							: value && (value.join
+								? value.indexOf(fromGroup) > -1
+								: (fromGroup == value)
+							);
+					};
+				}
 			}
 
-			['pull', 'put'].forEach(function (key) {
-				if (!(key in group)) {
-					group[key] = true;
-				}
-			});
+			var group = {};
+			var originalGroup = options.group;
+
+			if (!originalGroup || typeof originalGroup != 'object') {
+				originalGroup = {name: originalGroup};
+			}
 
-			options.groups = ' ' + group.name + (group.put.join ? ' ' + group.put.join(' ') : '') + ' ';
+			group.name = originalGroup.name;
+			group.checkPull = toFn(originalGroup.pull, true);
+			group.checkPut = toFn(originalGroup.put);
+
+			options.group = group;
 		}
 	;
 
@@ -198,6 +245,7 @@
 			draggable: /[uo]l/i.test(el.nodeName) ? 'li' : '>*',
 			ghostClass: 'sortable-ghost',
 			chosenClass: 'sortable-chosen',
+			dragClass: 'sortable-drag',
 			ignore: 'a, img',
 			filter: null,
 			animation: 0,
@@ -211,7 +259,8 @@
 			forceFallback: false,
 			fallbackClass: 'sortable-fallback',
 			fallbackOnBody: false,
-			fallbackTolerance: 0
+			fallbackTolerance: 0,
+			fallbackOffset: {x: 0, y: 0}
 		};
 
 
@@ -224,7 +273,7 @@
 
 		// Bind all private methods
 		for (var fn in this) {
-			if (fn.charAt(0) === '_') {
+			if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
 				this[fn] = this[fn].bind(this);
 			}
 		}
@@ -258,7 +307,7 @@
 				type = evt.type,
 				touch = evt.touches && evt.touches[0],
 				target = (touch || evt).target,
-				originalTarget = target,
+				originalTarget = evt.target.shadowRoot && evt.path[0] || target,
 				filter = options.filter,
 				startIndex;
 
@@ -271,13 +320,13 @@
 				return; // only left button or enabled
 			}
 
-			target = _closest(target, options.draggable, el);
-
-			if (!target) {
+			if (options.handle && !_closest(originalTarget, options.handle, el)) {
 				return;
 			}
 
-			if (options.handle && !_closest(originalTarget, options.handle, el)) {
+			target = _closest(target, options.draggable, el);
+
+			if (!target) {
 				return;
 			}
 
@@ -332,16 +381,18 @@
 				this._lastX = (touch || evt).clientX;
 				this._lastY = (touch || evt).clientY;
 
+				dragEl.style['will-change'] = 'transform';
+
 				dragStartFn = function () {
 					// Delayed drag has been triggered
 					// we can re-enable the events: touchmove/mousemove
 					_this._disableDelayedDrag();
 
 					// Make the element draggable
-					dragEl.draggable = true;
+					dragEl.draggable = _this.nativeDraggable;
 
 					// Chosen item
-					_toggleClass(dragEl, _this.options.chosenClass, true);
+					_toggleClass(dragEl, options.chosenClass, true);
 
 					// Bind the events: dragstart/dragend
 					_this._triggerDragStart(touch);
@@ -408,7 +459,10 @@
 
 			try {
 				if (document.selection) {
-					document.selection.empty();
+					// Timeout neccessary for IE9
+					setTimeout(function () {
+						document.selection.empty();
+					});
 				} else {
 					window.getSelection().removeAllRanges();
 				}
@@ -418,8 +472,11 @@
 
 		_dragStarted: function () {
 			if (rootEl && dragEl) {
+				var options = this.options;
+
 				// Apply effect
-				_toggleClass(dragEl, this.options.ghostClass, true);
+				_toggleClass(dragEl, options.ghostClass, true);
+				_toggleClass(dragEl, options.dragClass, false);
 
 				Sortable.active = this;
 
@@ -443,12 +500,11 @@
 
 				var target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY),
 					parent = target,
-					groupName = ' ' + this.options.group.name + '',
 					i = touchDragOverListeners.length;
 
 				if (parent) {
 					do {
-						if (parent[expando] && parent[expando].options.groups.indexOf(groupName) > -1) {
+						if (parent[expando]) {
 							while (i--) {
 								touchDragOverListeners[i]({
 									clientX: touchEvt.clientX,
@@ -478,9 +534,10 @@
 			if (tapEvt) {
 				var	options = this.options,
 					fallbackTolerance = options.fallbackTolerance,
+					fallbackOffset = options.fallbackOffset,
 					touch = evt.touches ? evt.touches[0] : evt,
-					dx = touch.clientX - tapEvt.clientX,
-					dy = touch.clientY - tapEvt.clientY,
+					dx = (touch.clientX - tapEvt.clientX) + fallbackOffset.x,
+					dy = (touch.clientY - tapEvt.clientY) + fallbackOffset.y,
 					translate3d = evt.touches ? 'translate3d(' + dx + 'px,' + dy + 'px,0)' : 'translate(' + dx + 'px,' + dy + 'px)';
 
 				// only set the status to dragging, when we are actually dragging
@@ -520,6 +577,7 @@
 
 				_toggleClass(ghostEl, options.ghostClass, false);
 				_toggleClass(ghostEl, options.fallbackClass, true);
+				_toggleClass(ghostEl, options.dragClass, true);
 
 				_css(ghostEl, 'top', rect.top - parseInt(css.marginTop, 10));
 				_css(ghostEl, 'left', rect.left - parseInt(css.marginLeft, 10));
@@ -545,13 +603,15 @@
 
 			this._offUpEvents();
 
-			if (activeGroup.pull == 'clone') {
-				cloneEl = dragEl.cloneNode(true);
+			if (activeGroup.checkPull(this, this, dragEl, evt) == 'clone') {
+				cloneEl = _clone(dragEl);
 				_css(cloneEl, 'display', 'none');
 				rootEl.insertBefore(cloneEl, dragEl);
 				_dispatchEvent(this, rootEl, 'clone', dragEl);
 			}
 
+			_toggleClass(dragEl, options.dragClass, true);
+
 			if (useFallback) {
 				if (useFallback === 'touch') {
 					// Bind touch events
@@ -581,10 +641,11 @@
 			var el = this.el,
 				target,
 				dragRect,
+				targetRect,
 				revert,
 				options = this.options,
 				group = options.group,
-				groupPut = group.put,
+				activeSortable = Sortable.active,
 				isOwner = (activeGroup === group),
 				canSort = options.sort;
 
@@ -598,9 +659,9 @@
 			if (activeGroup && !options.disabled &&
 				(isOwner
 					? canSort || (revert = !rootEl.contains(dragEl)) // Reverting item into the original list
-					: activeGroup.pull && groupPut && (
-						(activeGroup.name === group.name) || // by Name
-						(groupPut.indexOf && ~groupPut.indexOf(activeGroup.name)) // by Array
+					: (
+						putSortable === this ||
+						activeGroup.checkPull(this, activeSortable, dragEl, evt) && group.checkPut(this, activeSortable, dragEl, evt)
 					)
 				) &&
 				(evt.rootEl === void 0 || evt.rootEl === this.el) // touch fallback
@@ -614,6 +675,7 @@
 
 				target = _closest(evt.target, options.draggable, el);
 				dragRect = dragEl.getBoundingClientRect();
+				putSortable = this;
 
 				if (revert) {
 					_cloneHide(true);
@@ -633,7 +695,6 @@
 				if ((el.children.length === 0) || (el.children[0] === ghostEl) ||
 					(el === evt.target) && (target = _ghostIsLast(el, evt))
 				) {
-
 					if (target) {
 						if (target.animated) {
 							return;
@@ -644,7 +705,7 @@
 
 					_cloneHide(isOwner);
 
-					if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect) !== false) {
+					if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt) !== false) {
 						if (!dragEl.contains(el)) {
 							el.appendChild(dragEl);
 							parentEl = el; // actualization
@@ -661,9 +722,9 @@
 						lastParentCSS = _css(target.parentNode);
 					}
 
+					targetRect = target.getBoundingClientRect();
 
-					var targetRect = target.getBoundingClientRect(),
-						width = targetRect.right - targetRect.left,
+					var width = targetRect.right - targetRect.left,
 						height = targetRect.bottom - targetRect.top,
 						floating = /left|right|inline/.test(lastCSS.cssFloat + lastCSS.display)
 							|| (lastParentCSS.display == 'flex' && lastParentCSS['flex-direction'].indexOf('row') === 0),
@@ -671,7 +732,7 @@
 						isLong = (target.offsetHeight > dragEl.offsetHeight),
 						halfway = (floating ? (evt.clientX - targetRect.left) / width : (evt.clientY - targetRect.top) / height) > 0.5,
 						nextSibling = target.nextElementSibling,
-						moveVector = _onMove(rootEl, el, dragEl, dragRect, target, targetRect),
+						moveVector = _onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt),
 						after
 					;
 
@@ -784,6 +845,7 @@
 					}
 
 					_disableDraggable(dragEl);
+					dragEl.style['will-change'] = '';
 
 					// Remove class's
 					_toggleClass(dragEl, this.options.ghostClass, false);
@@ -793,15 +855,16 @@
 						newIndex = _index(dragEl, options.draggable);
 
 						if (newIndex >= 0) {
-							// drag from one list and drop into another
-							_dispatchEvent(null, parentEl, 'sort', dragEl, rootEl, oldIndex, newIndex);
-							_dispatchEvent(this, rootEl, 'sort', dragEl, rootEl, oldIndex, newIndex);
 
 							// Add event
 							_dispatchEvent(null, parentEl, 'add', dragEl, rootEl, oldIndex, newIndex);
 
 							// Remove event
 							_dispatchEvent(this, rootEl, 'remove', dragEl, rootEl, oldIndex, newIndex);
+
+							// drag from one list and drop into another
+							_dispatchEvent(null, parentEl, 'sort', dragEl, rootEl, oldIndex, newIndex);
+							_dispatchEvent(this, rootEl, 'sort', dragEl, rootEl, oldIndex, newIndex);
 						}
 					}
 					else {
@@ -821,7 +884,8 @@
 					}
 
 					if (Sortable.active) {
-						if (newIndex === null || newIndex === -1) {
+						/* jshint eqnull:true */
+						if (newIndex == null || newIndex === -1) {
 							newIndex = oldIndex;
 						}
 
@@ -837,7 +901,7 @@
 			this._nulling();
 		},
 
-		_nulling: function () {
+		_nulling: function() {
 			rootEl =
 			dragEl =
 			parentEl =
@@ -857,6 +921,7 @@
 			lastEl =
 			lastCSS =
 
+			putSortable =
 			activeGroup =
 			Sortable.active = null;
 		},
@@ -1011,14 +1076,21 @@
 				if ((selector === '>*' && el.parentNode === ctx) || _matches(el, selector)) {
 					return el;
 				}
-			}
-			while (el !== ctx && (el = el.parentNode));
+				/* jshint boss:true */
+			} while (el = _getParentOrHost(el));
 		}
 
 		return null;
 	}
 
 
+	function _getParentOrHost(el) {
+		var parent = el.host;
+
+		return (parent && parent.nodeType) ? parent : el.parentNode;
+	}
+
+
 	function _globalDragOver(/**Event*/evt) {
 		if (evt.dataTransfer) {
 			evt.dataTransfer.dropEffect = 'move';
@@ -1094,8 +1166,10 @@
 
 
 	function _dispatchEvent(sortable, rootEl, name, targetEl, fromEl, startIndex, newIndex) {
+		sortable = (sortable || rootEl[expando]);
+
 		var evt = document.createEvent('Event'),
-			options = (sortable || rootEl[expando]).options,
+			options = sortable.options,
 			onName = 'on' + name.charAt(0).toUpperCase() + name.substr(1);
 
 		evt.initEvent(name, true, true);
@@ -1116,7 +1190,7 @@
 	}
 
 
-	function _onMove(fromEl, toEl, dragEl, dragRect, targetEl, targetRect) {
+	function _onMove(fromEl, toEl, dragEl, dragRect, targetEl, targetRect, originalEvt) {
 		var evt,
 			sortable = fromEl[expando],
 			onMoveFn = sortable.options.onMove,
@@ -1135,7 +1209,7 @@
 		fromEl.dispatchEvent(evt);
 
 		if (onMoveFn) {
-			retVal = onMoveFn.call(sortable, evt);
+			retVal = onMoveFn.call(sortable, evt, originalEvt);
 		}
 
 		return retVal;
@@ -1155,9 +1229,14 @@
 	/** @returns {HTMLElement|false} */
 	function _ghostIsLast(el, evt) {
 		var lastEl = el.lastElementChild,
-				rect = lastEl.getBoundingClientRect();
-
-		return ((evt.clientY - (rect.top + rect.height) > 5) || (evt.clientX - (rect.right + rect.width) > 5)) && lastEl; // min delta
+			rect = lastEl.getBoundingClientRect();
+
+		// 5 — min delta
+		// abs — нельзя добавлять, а то глюки при наведении сверху
+		return (
+			(evt.clientY - (rect.top + rect.height) > 5) ||
+			(evt.clientX - (rect.right + rect.width) > 5)
+		) && lastEl;
 	}
 
 
@@ -1251,6 +1330,15 @@
 		return dst;
 	}
 
+	function _clone(el) {
+		return $
+			? $(el).clone(true)[0]
+			: (Polymer && Polymer.dom
+				? Polymer.dom(el).cloneNode(true)
+				: el.cloneNode(true)
+			);
+	}
+
 
 	// Export utils
 	Sortable.utils = {
@@ -1265,6 +1353,7 @@
 		throttle: _throttle,
 		closest: _closest,
 		toggleClass: _toggleClass,
+		clone: _clone,
 		index: _index
 	};