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[feature] plugin: drag n drop plugin

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1 parent 0f6ff4a commit 83d2b939b3f7a76ed986101d3e6d7722de97df0d Jessica Castejon committed Jul 12, 2011
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+/*!
+ * jQuery UI 1.8.14
+ *
+ * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT or GPL Version 2 licenses.
+ * http://jquery.org/license
+ *
+ * http://docs.jquery.com/UI
+ */
+(function( $, undefined ) {
+
+// prevent duplicate loading
+// this is only a problem because we proxy existing functions
+// and we don't want to double proxy them
+$.ui = $.ui || {};
+if ( $.ui.version ) {
+ return;
+}
+
+$.extend( $.ui, {
+ version: "1.8.14",
+
+ keyCode: {
+ ALT: 18,
+ BACKSPACE: 8,
+ CAPS_LOCK: 20,
+ COMMA: 188,
+ COMMAND: 91,
+ COMMAND_LEFT: 91, // COMMAND
+ COMMAND_RIGHT: 93,
+ CONTROL: 17,
+ DELETE: 46,
+ DOWN: 40,
+ END: 35,
+ ENTER: 13,
+ ESCAPE: 27,
+ HOME: 36,
+ INSERT: 45,
+ LEFT: 37,
+ MENU: 93, // COMMAND_RIGHT
+ NUMPAD_ADD: 107,
+ NUMPAD_DECIMAL: 110,
+ NUMPAD_DIVIDE: 111,
+ NUMPAD_ENTER: 108,
+ NUMPAD_MULTIPLY: 106,
+ NUMPAD_SUBTRACT: 109,
+ PAGE_DOWN: 34,
+ PAGE_UP: 33,
+ PERIOD: 190,
+ RIGHT: 39,
+ SHIFT: 16,
+ SPACE: 32,
+ TAB: 9,
+ UP: 38,
+ WINDOWS: 91 // COMMAND
+ }
+});
+
+// plugins
+$.fn.extend({
+ _focus: $.fn.focus,
+ focus: function( delay, fn ) {
+ return typeof delay === "number" ?
+ this.each(function() {
+ var elem = this;
+ setTimeout(function() {
+ $( elem ).focus();
+ if ( fn ) {
+ fn.call( elem );
+ }
+ }, delay );
+ }) :
+ this._focus.apply( this, arguments );
+ },
+
+ scrollParent: function() {
+ var scrollParent;
+ if (($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
+ scrollParent = this.parents().filter(function() {
+ return (/(relative|absolute|fixed)/).test($.curCSS(this,'position',1)) && (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
+ }).eq(0);
+ } else {
+ scrollParent = this.parents().filter(function() {
+ return (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
+ }).eq(0);
+ }
+
+ return (/fixed/).test(this.css('position')) || !scrollParent.length ? $(document) : scrollParent;
+ },
+
+ zIndex: function( zIndex ) {
+ if ( zIndex !== undefined ) {
+ return this.css( "zIndex", zIndex );
+ }
+
+ if ( this.length ) {
+ var elem = $( this[ 0 ] ), position, value;
+ while ( elem.length && elem[ 0 ] !== document ) {
+ // Ignore z-index if position is set to a value where z-index is ignored by the browser
+ // This makes behavior of this function consistent across browsers
+ // WebKit always returns auto if the element is positioned
+ position = elem.css( "position" );
+ if ( position === "absolute" || position === "relative" || position === "fixed" ) {
+ // IE returns 0 when zIndex is not specified
+ // other browsers return a string
+ // we ignore the case of nested elements with an explicit value of 0
+ // <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
+ value = parseInt( elem.css( "zIndex" ), 10 );
+ if ( !isNaN( value ) && value !== 0 ) {
+ return value;
+ }
+ }
+ elem = elem.parent();
+ }
+ }
+
+ return 0;
+ },
+
+ disableSelection: function() {
+ return this.bind( ( $.support.selectstart ? "selectstart" : "mousedown" ) +
+ ".ui-disableSelection", function( event ) {
+ event.preventDefault();
+ });
+ },
+
+ enableSelection: function() {
+ return this.unbind( ".ui-disableSelection" );
+ }
+});
+
+$.each( [ "Width", "Height" ], function( i, name ) {
+ var side = name === "Width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ],
+ type = name.toLowerCase(),
+ orig = {
+ innerWidth: $.fn.innerWidth,
+ innerHeight: $.fn.innerHeight,
+ outerWidth: $.fn.outerWidth,
+ outerHeight: $.fn.outerHeight
+ };
+
+ function reduce( elem, size, border, margin ) {
+ $.each( side, function() {
+ size -= parseFloat( $.curCSS( elem, "padding" + this, true) ) || 0;
+ if ( border ) {
+ size -= parseFloat( $.curCSS( elem, "border" + this + "Width", true) ) || 0;
+ }
+ if ( margin ) {
+ size -= parseFloat( $.curCSS( elem, "margin" + this, true) ) || 0;
+ }
+ });
+ return size;
+ }
+
+ $.fn[ "inner" + name ] = function( size ) {
+ if ( size === undefined ) {
+ return orig[ "inner" + name ].call( this );
+ }
+
+ return this.each(function() {
+ $( this ).css( type, reduce( this, size ) + "px" );
+ });
+ };
+
+ $.fn[ "outer" + name] = function( size, margin ) {
+ if ( typeof size !== "number" ) {
+ return orig[ "outer" + name ].call( this, size );
+ }
+
+ return this.each(function() {
+ $( this).css( type, reduce( this, size, true, margin ) + "px" );
+ });
+ };
+});
+
+// selectors
+function focusable( element, isTabIndexNotNaN ) {
+ var nodeName = element.nodeName.toLowerCase();
+ if ( "area" === nodeName ) {
+ var map = element.parentNode,
+ mapName = map.name,
+ img;
+ if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
+ return false;
+ }
+ img = $( "img[usemap=#" + mapName + "]" )[0];
+ return !!img && visible( img );
+ }
+ return ( /input|select|textarea|button|object/.test( nodeName )
+ ? !element.disabled
+ : "a" == nodeName
+ ? element.href || isTabIndexNotNaN
+ : isTabIndexNotNaN)
+ // the element and all of its ancestors must be visible
+ && visible( element );
+}
+
+function visible( element ) {
+ return !$( element ).parents().andSelf().filter(function() {
+ return $.curCSS( this, "visibility" ) === "hidden" ||
+ $.expr.filters.hidden( this );
+ }).length;
+}
+
+$.extend( $.expr[ ":" ], {
+ data: function( elem, i, match ) {
+ return !!$.data( elem, match[ 3 ] );
+ },
+
+ focusable: function( element ) {
+ return focusable( element, !isNaN( $.attr( element, "tabindex" ) ) );
+ },
+
+ tabbable: function( element ) {
+ var tabIndex = $.attr( element, "tabindex" ),
+ isTabIndexNaN = isNaN( tabIndex );
+ return ( isTabIndexNaN || tabIndex >= 0 ) && focusable( element, !isTabIndexNaN );
+ }
+});
+
+// support
+$(function() {
+ var body = document.body,
+ div = body.appendChild( div = document.createElement( "div" ) );
+
+ $.extend( div.style, {
+ minHeight: "100px",
+ height: "auto",
+ padding: 0,
+ borderWidth: 0
+ });
+
+ $.support.minHeight = div.offsetHeight === 100;
+ $.support.selectstart = "onselectstart" in div;
+
+ // set display to none to avoid a layout bug in IE
+ // http://dev.jquery.com/ticket/4014
+ body.removeChild( div ).style.display = "none";
+});
+
+
+
+
+
+// deprecated
+$.extend( $.ui, {
+ // $.ui.plugin is deprecated. Use the proxy pattern instead.
+ plugin: {
+ add: function( module, option, set ) {
+ var proto = $.ui[ module ].prototype;
+ for ( var i in set ) {
+ proto.plugins[ i ] = proto.plugins[ i ] || [];
+ proto.plugins[ i ].push( [ option, set[ i ] ] );
+ }
+ },
+ call: function( instance, name, args ) {
+ var set = instance.plugins[ name ];
+ if ( !set || !instance.element[ 0 ].parentNode ) {
+ return;
+ }
+
+ for ( var i = 0; i < set.length; i++ ) {
+ if ( instance.options[ set[ i ][ 0 ] ] ) {
+ set[ i ][ 1 ].apply( instance.element, args );
+ }
+ }
+ }
+ },
+
+ // will be deprecated when we switch to jQuery 1.4 - use jQuery.contains()
+ contains: function( a, b ) {
+ return document.compareDocumentPosition ?
+ a.compareDocumentPosition( b ) & 16 :
+ a !== b && a.contains( b );
+ },
+
+ // only used by resizable
+ hasScroll: function( el, a ) {
+
+ //If overflow is hidden, the element might have extra content, but the user wants to hide it
+ if ( $( el ).css( "overflow" ) === "hidden") {
+ return false;
+ }
+
+ var scroll = ( a && a === "left" ) ? "scrollLeft" : "scrollTop",
+ has = false;
+
+ if ( el[ scroll ] > 0 ) {
+ return true;
+ }
+
+ // TODO: determine which cases actually cause this to happen
+ // if the element doesn't have the scroll set, see if it's possible to
+ // set the scroll
+ el[ scroll ] = 1;
+ has = ( el[ scroll ] > 0 );
+ el[ scroll ] = 0;
+ return has;
+ },
+
+ // these are odd functions, fix the API or move into individual plugins
+ isOverAxis: function( x, reference, size ) {
+ //Determines when x coordinate is over "b" element axis
+ return ( x > reference ) && ( x < ( reference + size ) );
+ },
+ isOver: function( y, x, top, left, height, width ) {
+ //Determines when x, y coordinates is over "b" element
+ return $.ui.isOverAxis( y, top, height ) && $.ui.isOverAxis( x, left, width );
+ }
+});
+
+})( jQuery );
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