Mouse: Move mouse into widgets folder

Ref #13885

1 files changed, 205 insertions, 0 deletions

diff --git a/ui/widgets/mouse.js b/ui/widgets/mouse.js
new file mode 100644
index 000000000..80242c0b7
--- /dev/null
+++ b/ui/widgets/mouse.js
@@ -0,0 +1,205 @@
+/*!
+ * jQuery UI Mouse @VERSION
+ * http://jqueryui.com
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license.
+ * http://jquery.org/license
+ */
+
+//>>label: Mouse
+//>>group: UI Core
+//>>description: Abstracts mouse-based interactions to assist in creating certain widgets.
+//>>docs: http://api.jqueryui.com/mouse/
+
+(function( factory ) {
+	if ( typeof define === "function" && define.amd ) {
+
+		// AMD. Register as an anonymous module.
+		define([
+			"jquery",
+			"../ie",
+			"../version",
+			"../widget"
+		], factory );
+	} else {
+
+		// Browser globals
+		factory( jQuery );
+	}
+}(function( $ ) {
+
+var mouseHandled = false;
+$( document ).on( "mouseup", function() {
+	mouseHandled = false;
+});
+
+return $.widget("ui.mouse", {
+	version: "@VERSION",
+	options: {
+		cancel: "input, textarea, button, select, option",
+		distance: 1,
+		delay: 0
+	},
+	_mouseInit: function() {
+		var that = this;
+
+		this.element
+			.on("mousedown." + this.widgetName, function(event) {
+				return that._mouseDown(event);
+			})
+			.on("click." + this.widgetName, function(event) {
+				if (true === $.data(event.target, that.widgetName + ".preventClickEvent")) {
+					$.removeData(event.target, that.widgetName + ".preventClickEvent");
+					event.stopImmediatePropagation();
+					return false;
+				}
+			});
+
+		this.started = false;
+	},
+
+	// TODO: make sure destroying one instance of mouse doesn't mess with
+	// other instances of mouse
+	_mouseDestroy: function() {
+		this.element.off("." + this.widgetName);
+		if ( this._mouseMoveDelegate ) {
+			this.document
+				.off("mousemove." + this.widgetName, this._mouseMoveDelegate)
+				.off("mouseup." + this.widgetName, this._mouseUpDelegate);
+		}
+	},
+
+	_mouseDown: function(event) {
+		// don't let more than one widget handle mouseStart
+		if ( mouseHandled ) {
+			return;
+		}
+
+		this._mouseMoved = false;
+
+		// we may have missed mouseup (out of window)
+		(this._mouseStarted && this._mouseUp(event));
+
+		this._mouseDownEvent = event;
+
+		var that = this,
+			btnIsLeft = (event.which === 1),
+			// event.target.nodeName works around a bug in IE 8 with
+			// disabled inputs (#7620)
+			elIsCancel = (typeof this.options.cancel === "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false);
+		if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
+			return true;
+		}
+
+		this.mouseDelayMet = !this.options.delay;
+		if (!this.mouseDelayMet) {
+			this._mouseDelayTimer = setTimeout(function() {
+				that.mouseDelayMet = true;
+			}, this.options.delay);
+		}
+
+		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
+			this._mouseStarted = (this._mouseStart(event) !== false);
+			if (!this._mouseStarted) {
+				event.preventDefault();
+				return true;
+			}
+		}
+
+		// Click event may never have fired (Gecko & Opera)
+		if (true === $.data(event.target, this.widgetName + ".preventClickEvent")) {
+			$.removeData(event.target, this.widgetName + ".preventClickEvent");
+		}
+
+		// these delegates are required to keep context
+		this._mouseMoveDelegate = function(event) {
+			return that._mouseMove(event);
+		};
+		this._mouseUpDelegate = function(event) {
+			return that._mouseUp(event);
+		};
+
+		this.document
+			.on( "mousemove." + this.widgetName, this._mouseMoveDelegate )
+			.on( "mouseup." + this.widgetName, this._mouseUpDelegate );
+
+		event.preventDefault();
+
+		mouseHandled = true;
+		return true;
+	},
+
+	_mouseMove: function(event) {
+		// Only check for mouseups outside the document if you've moved inside the document
+		// at least once. This prevents the firing of mouseup in the case of IE<9, which will
+		// fire a mousemove event if content is placed under the cursor. See #7778
+		// Support: IE <9
+		if ( this._mouseMoved ) {
+			// IE mouseup check - mouseup happened when mouse was out of window
+			if ($.ui.ie && ( !document.documentMode || document.documentMode < 9 ) && !event.button) {
+				return this._mouseUp(event);
+
+			// Iframe mouseup check - mouseup occurred in another document
+			} else if ( !event.which ) {
+				return this._mouseUp( event );
+			}
+		}
+
+		if ( event.which || event.button ) {
+			this._mouseMoved = true;
+		}
+
+		if (this._mouseStarted) {
+			this._mouseDrag(event);
+			return event.preventDefault();
+		}
+
+		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
+			this._mouseStarted =
+				(this._mouseStart(this._mouseDownEvent, event) !== false);
+			(this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
+		}
+
+		return !this._mouseStarted;
+	},
+
+	_mouseUp: function(event) {
+		this.document
+			.off( "mousemove." + this.widgetName, this._mouseMoveDelegate )
+			.off( "mouseup." + this.widgetName, this._mouseUpDelegate );
+
+		if (this._mouseStarted) {
+			this._mouseStarted = false;
+
+			if (event.target === this._mouseDownEvent.target) {
+				$.data(event.target, this.widgetName + ".preventClickEvent", true);
+			}
+
+			this._mouseStop(event);
+		}
+
+		mouseHandled = false;
+		return false;
+	},
+
+	_mouseDistanceMet: function(event) {
+		return (Math.max(
+				Math.abs(this._mouseDownEvent.pageX - event.pageX),
+				Math.abs(this._mouseDownEvent.pageY - event.pageY)
+			) >= this.options.distance
+		);
+	},
+
+	_mouseDelayMet: function(/* event */) {
+		return this.mouseDelayMet;
+	},
+
+	// These are placeholder methods, to be overriden by extending plugin
+	_mouseStart: function(/* event */) {},
+	_mouseDrag: function(/* event */) {},
+	_mouseStop: function(/* event */) {},
+	_mouseCapture: function(/* event */) { return true; }
+});
+
+}));