https://manorway.org.uk/wp-includes/js/jquery/ui/mouse.js?ver=1.13.1

1/*!
2 * jQuery UI Mouse 1.13.1
3 * http://jqueryui.com
4 *
5 * Copyright jQuery Foundation and other contributors
6 * Released under the MIT license.
7 * http://jquery.org/license
8 */
9
10//>>label: Mouse
11//>>group: Widgets
12//>>description: Abstracts mouse-based interactions to assist in creating certain widgets.
13//>>docs: http://api.jqueryui.com/mouse/
14
15( function( factory ) {
16	"use strict";
17
18	if ( typeof define === "function" && define.amd ) {
19
20		// AMD. Register as an anonymous module.
21		define( [
22			"jquery",
23			"./core"
24		], factory );
25	} else {
26
27		// Browser globals
28		factory( jQuery );
29	}
30} )( function( $ ) {
31"use strict";
32
33var mouseHandled = false;
34$( document ).on( "mouseup", function() {
35	mouseHandled = false;
36} );
37
38return $.widget( "ui.mouse", {
39	version: "1.13.1",
40	options: {
41		cancel: "input, textarea, button, select, option",
42		distance: 1,
43		delay: 0
44	},
45	_mouseInit: function() {
46		var that = this;
47
48		this.element
49			.on( "mousedown." + this.widgetName, function( event ) {
50				return that._mouseDown( event );
51			} )
52			.on( "click." + this.widgetName, function( event ) {
53				if ( true === $.data( event.target, that.widgetName + ".preventClickEvent" ) ) {
54					$.removeData( event.target, that.widgetName + ".preventClickEvent" );
55					event.stopImmediatePropagation();
56					return false;
57				}
58			} );
59
60		this.started = false;
61	},
62
63	// TODO: make sure destroying one instance of mouse doesn't mess with
64	// other instances of mouse
65	_mouseDestroy: function() {
66		this.element.off( "." + this.widgetName );
67		if ( this._mouseMoveDelegate ) {
68			this.document
69				.off( "mousemove." + this.widgetName, this._mouseMoveDelegate )
70				.off( "mouseup." + this.widgetName, this._mouseUpDelegate );
71		}
72	},
73
74	_mouseDown: function( event ) {
75
76		// don't let more than one widget handle mouseStart
77		if ( mouseHandled ) {
78			return;
79		}
80
81		this._mouseMoved = false;
82
83		// We may have missed mouseup (out of window)
84		if ( this._mouseStarted ) {
85			this._mouseUp( event );
86		}
87
88		this._mouseDownEvent = event;
89
90		var that = this,
91			btnIsLeft = ( event.which === 1 ),
92
93			// event.target.nodeName works around a bug in IE 8 with
94			// disabled inputs (#7620)
95			elIsCancel = ( typeof this.options.cancel === "string" && event.target.nodeName ?
96				$( event.target ).closest( this.options.cancel ).length : false );
97		if ( !btnIsLeft || elIsCancel || !this._mouseCapture( event ) ) {
98			return true;
99		}
100
101		this.mouseDelayMet = !this.options.delay;
102		if ( !this.mouseDelayMet ) {
103			this._mouseDelayTimer = setTimeout( function() {
104				that.mouseDelayMet = true;
105			}, this.options.delay );
106		}
107
108		if ( this._mouseDistanceMet( event ) && this._mouseDelayMet( event ) ) {
109			this._mouseStarted = ( this._mouseStart( event ) !== false );
110			if ( !this._mouseStarted ) {
111				event.preventDefault();
112				return true;
113			}
114		}
115
116		// Click event may never have fired (Gecko & Opera)
117		if ( true === $.data( event.target, this.widgetName + ".preventClickEvent" ) ) {
118			$.removeData( event.target, this.widgetName + ".preventClickEvent" );
119		}
120
121		// These delegates are required to keep context
122		this._mouseMoveDelegate = function( event ) {
123			return that._mouseMove( event );
124		};
125		this._mouseUpDelegate = function( event ) {
126			return that._mouseUp( event );
127		};
128
129		this.document
130			.on( "mousemove." + this.widgetName, this._mouseMoveDelegate )
131			.on( "mouseup." + this.widgetName, this._mouseUpDelegate );
132
133		event.preventDefault();
134
135		mouseHandled = true;
136		return true;
137	},
138
139	_mouseMove: function( event ) {
140
141		// Only check for mouseups outside the document if you've moved inside the document
142		// at least once. This prevents the firing of mouseup in the case of IE<9, which will
143		// fire a mousemove event if content is placed under the cursor. See #7778
144		// Support: IE <9
145		if ( this._mouseMoved ) {
146
147			// IE mouseup check - mouseup happened when mouse was out of window
148			if ( $.ui.ie && ( !document.documentMode || document.documentMode < 9 ) &&
149				!event.button ) {
150				return this._mouseUp( event );
151
152				// Iframe mouseup check - mouseup occurred in another document
153			} else if ( !event.which ) {
154
155				// Support: Safari <=8 - 9
156				// Safari sets which to 0 if you press any of the following keys
157				// during a drag (#14461)
158				if ( event.originalEvent.altKey || event.originalEvent.ctrlKey ||
159					event.originalEvent.metaKey || event.originalEvent.shiftKey ) {
160					this.ignoreMissingWhich = true;
161				} else if ( !this.ignoreMissingWhich ) {
162					return this._mouseUp( event );
163				}
164			}
165		}
166
167		if ( event.which || event.button ) {
168			this._mouseMoved = true;
169		}
170
171		if ( this._mouseStarted ) {
172			this._mouseDrag( event );
173			return event.preventDefault();
174		}
175
176		if ( this._mouseDistanceMet( event ) && this._mouseDelayMet( event ) ) {
177			this._mouseStarted =
178				( this._mouseStart( this._mouseDownEvent, event ) !== false );
179			if ( this._mouseStarted ) {
180				this._mouseDrag( event );
181			} else {
182				this._mouseUp( event );
183			}
184		}
185
186		return !this._mouseStarted;
187	},
188
189	_mouseUp: function( event ) {
190		this.document
191			.off( "mousemove." + this.widgetName, this._mouseMoveDelegate )
192			.off( "mouseup." + this.widgetName, this._mouseUpDelegate );
193
194		if ( this._mouseStarted ) {
195			this._mouseStarted = false;
196
197			if ( event.target === this._mouseDownEvent.target ) {
198				$.data( event.target, this.widgetName + ".preventClickEvent", true );
199			}
200
201			this._mouseStop( event );
202		}
203
204		if ( this._mouseDelayTimer ) {
205			clearTimeout( this._mouseDelayTimer );
206			delete this._mouseDelayTimer;
207		}
208
209		this.ignoreMissingWhich = false;
210		mouseHandled = false;
211		event.preventDefault();
212	},
213
214	_mouseDistanceMet: function( event ) {
215		return ( Math.max(
216				Math.abs( this._mouseDownEvent.pageX - event.pageX ),
217				Math.abs( this._mouseDownEvent.pageY - event.pageY )
218			) >= this.options.distance
219		);
220	},
221
222	_mouseDelayMet: function( /* event */ ) {
223		return this.mouseDelayMet;
224	},
225
226	// These are placeholder methods, to be overriden by extending plugin
227	_mouseStart: function( /* event */ ) {},
228	_mouseDrag: function( /* event */ ) {},
229	_mouseStop: function( /* event */ ) {},
230	_mouseCapture: function( /* event */ ) {
231		return true;
232	}
233} );
234
235} );