[6779] | 1 | /*
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| 2 | Copyright (c) 2003-2009, CKSource - Frederico Knabben. All rights reserved.
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| 3 | For licensing, see LICENSE.html or http://ckeditor.com/license
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| 4 | */
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| 5 |
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| 6 | /**
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| 7 | * @fileOverview Defines the {@link CKEDITOR.tools} object, which contains
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| 8 | * utility functions.
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| 9 | */
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| 10 |
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| 11 | (function()
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| 12 | {
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| 13 | var functions = [];
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| 14 |
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| 15 | /**
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| 16 | * Utility functions.
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| 17 | * @namespace
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| 18 | * @example
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| 19 | */
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| 20 | CKEDITOR.tools =
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| 21 | {
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| 22 | arrayCompare : function( arrayA, arrayB )
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| 23 | {
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| 24 | if ( !arrayA && !arrayB )
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| 25 | return true;
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| 26 |
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| 27 | if ( !arrayA || !arrayB || arrayA.length != arrayB.length )
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| 28 | return false;
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| 29 |
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| 30 | for ( var i = 0 ; i < arrayA.length ; i++ )
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| 31 | {
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| 32 | if ( arrayA[ i ] != arrayB[ i ] )
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| 33 | return false;
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| 34 | }
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| 35 |
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| 36 | return true;
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| 37 | },
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| 38 |
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| 39 | /**
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| 40 | * Creates a deep copy of an object.
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| 41 | * Attention: there is no support for recursive references.
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| 42 | * @param {Object} object The object to be cloned.
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| 43 | * @returns {Object} The object clone.
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| 44 | * @example
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| 45 | * var obj =
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| 46 | * {
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| 47 | * name : 'John',
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| 48 | * cars :
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| 49 | * {
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| 50 | * Mercedes : { color : 'blue' },
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| 51 | * Porsche : { color : 'red' }
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| 52 | * }
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| 53 | * };
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| 54 | * var clone = CKEDITOR.tools.clone( obj );
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| 55 | * clone.name = 'Paul';
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| 56 | * clone.cars.Porsche.color = 'silver';
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| 57 | * alert( obj.name ); // John
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| 58 | * alert( clone.name ); // Paul
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| 59 | * alert( obj.cars.Porsche.color ); // red
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| 60 | * alert( clone.cars.Porsche.color ); // silver
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| 61 | */
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| 62 | clone : function( obj )
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| 63 | {
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| 64 | var clone;
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| 65 |
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| 66 | // Array.
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| 67 | if ( obj && ( obj instanceof Array ) )
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| 68 | {
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| 69 | clone = [];
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| 70 |
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| 71 | for ( var i = 0 ; i < obj.length ; i++ )
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| 72 | clone[ i ] = this.clone( obj[ i ] );
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| 73 |
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| 74 | return clone;
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| 75 | }
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| 76 |
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| 77 | // "Static" types.
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| 78 | if ( obj === null
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| 79 | || ( typeof( obj ) != 'object' )
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| 80 | || ( obj instanceof String )
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| 81 | || ( obj instanceof Number )
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| 82 | || ( obj instanceof Boolean )
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| 83 | || ( obj instanceof Date ) )
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| 84 | {
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| 85 | return obj;
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| 86 | }
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| 87 |
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| 88 | // Objects.
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| 89 | clone = new obj.constructor();
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| 90 |
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| 91 | for ( var propertyName in obj )
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| 92 | {
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| 93 | var property = obj[ propertyName ];
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| 94 | clone[ propertyName ] = this.clone( property );
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| 95 | }
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| 96 |
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| 97 | return clone;
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| 98 | },
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| 99 |
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| 100 | /**
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| 101 | * Copy the properties from one object to another. By default, properties
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| 102 | * already present in the target object <strong>are not</strong> overwritten.
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| 103 | * @param {Object} target The object to be extended.
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| 104 | * @param {Object} source[,souce(n)] The objects from which copy
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| 105 | * properties. Any number of objects can be passed to this function.
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| 106 | * @param {Boolean} [overwrite] If 'true' is specified it indicates that
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| 107 | * properties already present in the target object could be
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| 108 | * overwritten by subsequent objects.
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| 109 | * @param {Object} [properties] Only properties within the specified names
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| 110 | * list will be received from the source object.
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| 111 | * @returns {Object} the extended object (target).
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| 112 | * @example
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| 113 | * // Create the sample object.
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| 114 | * var myObject =
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| 115 | * {
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| 116 | * prop1 : true
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| 117 | * };
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| 118 | *
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| 119 | * // Extend the above object with two properties.
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| 120 | * CKEDITOR.tools.extend( myObject,
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| 121 | * {
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| 122 | * prop2 : true,
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| 123 | * prop3 : true
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| 124 | * } );
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| 125 | *
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| 126 | * // Alert "prop1", "prop2" and "prop3".
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| 127 | * for ( var p in myObject )
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| 128 | * alert( p );
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| 129 | */
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| 130 | extend : function( target )
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| 131 | {
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| 132 | var argsLength = arguments.length,
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| 133 | overwrite, propertiesList;
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| 134 |
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| 135 | if ( typeof ( overwrite = arguments[ argsLength - 1 ] ) == 'boolean')
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| 136 | argsLength--;
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| 137 | else if ( typeof ( overwrite = arguments[ argsLength - 2 ] ) == 'boolean' )
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| 138 | {
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| 139 | propertiesList = arguments [ argsLength -1 ];
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| 140 | argsLength-=2;
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| 141 | }
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| 142 | for ( var i = 1 ; i < argsLength ; i++ )
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| 143 | {
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| 144 | var source = arguments[ i ];
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| 145 | for ( var propertyName in source )
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| 146 | {
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| 147 | // Only copy existed fields if in overwrite mode.
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| 148 | if ( overwrite === true || target[ propertyName ] == undefined )
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| 149 | {
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| 150 | // Only copy specified fields if list is provided.
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| 151 | if ( !propertiesList || ( propertyName in propertiesList ) )
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| 152 | target[ propertyName ] = source[ propertyName ];
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| 153 |
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| 154 | }
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| 155 | }
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| 156 | }
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| 157 |
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| 158 | return target;
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| 159 | },
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| 160 |
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| 161 | /**
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| 162 | * Creates an object which is an instance of a class which prototype is a
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| 163 | * predefined object. All properties defined in the source object are
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| 164 | * automatically inherited by the resulting object, including future
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| 165 | * changes to it.
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| 166 | * @param {Object} source The source object to be used as the prototype for
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| 167 | * the final object.
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| 168 | * @returns {Object} The resulting copy.
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| 169 | */
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| 170 | prototypedCopy : function( source )
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| 171 | {
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| 172 | var copy = function()
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| 173 | {};
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| 174 | copy.prototype = source;
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| 175 | return new copy();
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| 176 | },
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| 177 |
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| 178 | /**
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| 179 | * Checks if an object is an Array.
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| 180 | * @param {Object} object The object to be checked.
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| 181 | * @type Boolean
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| 182 | * @returns <i>true</i> if the object is an Array, otherwise <i>false</i>.
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| 183 | * @example
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| 184 | * alert( CKEDITOR.tools.isArray( [] ) ); // "true"
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| 185 | * alert( CKEDITOR.tools.isArray( 'Test' ) ); // "false"
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| 186 | */
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| 187 | isArray : function( object )
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| 188 | {
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| 189 | return ( !!object && object instanceof Array );
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| 190 | },
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| 191 |
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| 192 | /**
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| 193 | * Transforms a CSS property name to its relative DOM style name.
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| 194 | * @param {String} cssName The CSS property name.
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| 195 | * @returns {String} The transformed name.
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| 196 | * @example
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| 197 | * alert( CKEDITOR.tools.cssStyleToDomStyle( 'background-color' ) ); // "backgroundColor"
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| 198 | * alert( CKEDITOR.tools.cssStyleToDomStyle( 'float' ) ); // "cssFloat"
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| 199 | */
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| 200 | cssStyleToDomStyle : ( function()
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| 201 | {
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| 202 | var test = document.createElement( 'div' ).style;
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| 203 |
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| 204 | var cssFloat = ( typeof test.cssFloat != 'undefined' ) ? 'cssFloat'
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| 205 | : ( typeof test.styleFloat != 'undefined' ) ? 'styleFloat'
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| 206 | : 'float';
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| 207 |
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| 208 | return function( cssName )
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| 209 | {
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| 210 | if ( cssName == 'float' )
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| 211 | return cssFloat;
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| 212 | else
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| 213 | {
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| 214 | return cssName.replace( /-./g, function( match )
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| 215 | {
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| 216 | return match.substr( 1 ).toUpperCase();
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| 217 | });
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| 218 | }
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| 219 | };
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| 220 | } )(),
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| 221 |
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| 222 | /**
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| 223 | * Replace special HTML characters in a string with their relative HTML
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| 224 | * entity values.
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| 225 | * @param {String} text The string to be encoded.
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| 226 | * @returns {String} The encode string.
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| 227 | * @example
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| 228 | * alert( CKEDITOR.tools.htmlEncode( 'A > B & C < D' ) ); // "A &gt; B &amp; C &lt; D"
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| 229 | */
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| 230 | htmlEncode : function( text )
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| 231 | {
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| 232 | var standard = function( text )
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| 233 | {
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| 234 | var span = new CKEDITOR.dom.element( 'span' );
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| 235 | span.setText( text );
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| 236 | return span.getHtml();
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| 237 | };
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| 238 |
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| 239 | var fix1 = ( standard( '\n' ).toLowerCase() == '<br>' ) ?
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| 240 | function( text )
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| 241 | {
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| 242 | // #3874 IE and Safari encode line-break into <br>
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| 243 | return standard( text ).replace( /<br>/gi, '\n' );
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| 244 | } :
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| 245 | standard;
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| 246 |
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| 247 | var fix2 = ( standard( '>' ) == '>' ) ?
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| 248 | function( text )
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| 249 | {
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| 250 | // WebKit does't encode the ">" character, which makes sense, but
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| 251 | // it's different than other browsers.
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| 252 | return fix1( text ).replace( />/g, '>' );
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| 253 | } :
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| 254 | fix1;
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| 255 |
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| 256 | var fix3 = ( standard( ' ' ) == ' ' ) ?
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| 257 | function( text )
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| 258 | {
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| 259 | // #3785 IE8 changes spaces (>= 2) to
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| 260 | return fix2( text ).replace( / /g, ' ' );
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| 261 | } :
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| 262 | fix2;
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| 263 |
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| 264 | this.htmlEncode = fix3;
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| 265 |
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| 266 | return this.htmlEncode( text );
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| 267 | },
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| 268 |
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| 269 | /**
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| 270 | * Gets a unique number for this CKEDITOR execution session. It returns
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| 271 | * progressive numbers starting at 1.
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| 272 | * @function
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| 273 | * @returns {Number} A unique number.
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| 274 | * @example
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| 275 | * alert( CKEDITOR.tools.<b>getNextNumber()</b> ); // "1" (e.g.)
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| 276 | * alert( CKEDITOR.tools.<b>getNextNumber()</b> ); // "2"
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| 277 | */
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| 278 | getNextNumber : (function()
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| 279 | {
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| 280 | var last = 0;
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| 281 | return function()
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| 282 | {
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| 283 | return ++last;
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| 284 | };
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| 285 | })(),
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| 286 |
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| 287 | /**
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| 288 | * Creates a function override.
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| 289 | * @param {Function} originalFunction The function to be overridden.
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| 290 | * @param {Function} functionBuilder A function that returns the new
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| 291 | * function. The original function reference will be passed to this
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| 292 | * function.
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| 293 | * @returns {Function} The new function.
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| 294 | * @example
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| 295 | * var example =
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| 296 | * {
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| 297 | * myFunction : function( name )
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| 298 | * {
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| 299 | * alert( 'Name: ' + name );
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| 300 | * }
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| 301 | * };
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| 302 | *
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| 303 | * example.myFunction = CKEDITOR.tools.override( example.myFunction, function( myFunctionOriginal )
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| 304 | * {
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| 305 | * return function( name )
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| 306 | * {
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| 307 | * alert( 'Override Name: ' + name );
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| 308 | * myFunctionOriginal.call( this, name );
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| 309 | * };
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| 310 | * });
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| 311 | */
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| 312 | override : function( originalFunction, functionBuilder )
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| 313 | {
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| 314 | return functionBuilder( originalFunction );
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| 315 | },
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| 316 |
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| 317 | /**
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| 318 | * Executes a function after specified delay.
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| 319 | * @param {Function} func The function to be executed.
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| 320 | * @param {Number} [milliseconds] The amount of time (millisecods) to wait
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| 321 | * to fire the function execution. Defaults to zero.
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| 322 | * @param {Object} [scope] The object to hold the function execution scope
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| 323 | * (the "this" object). By default the "window" object.
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| 324 | * @param {Object|Array} [args] A single object, or an array of objects, to
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| 325 | * pass as arguments to the function.
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| 326 | * @param {Object} [ownerWindow] The window that will be used to set the
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| 327 | * timeout. By default the current "window".
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| 328 | * @returns {Object} A value that can be used to cancel the function execution.
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| 329 | * @example
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| 330 | * CKEDITOR.tools.<b>setTimeout(
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| 331 | * function()
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| 332 | * {
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| 333 | * alert( 'Executed after 2 seconds' );
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| 334 | * },
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| 335 | * 2000 )</b>;
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| 336 | */
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| 337 | setTimeout : function( func, milliseconds, scope, args, ownerWindow )
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| 338 | {
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| 339 | if ( !ownerWindow )
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| 340 | ownerWindow = window;
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| 341 |
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| 342 | if ( !scope )
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| 343 | scope = ownerWindow;
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| 344 |
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| 345 | return ownerWindow.setTimeout(
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| 346 | function()
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| 347 | {
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| 348 | if ( args )
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| 349 | func.apply( scope, [].concat( args ) ) ;
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| 350 | else
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| 351 | func.apply( scope ) ;
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| 352 | },
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| 353 | milliseconds || 0 );
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| 354 | },
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| 355 |
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| 356 | /**
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| 357 | * Remove spaces from the start and the end of a string. The following
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| 358 | * characters are removed: space, tab, line break, line feed.
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| 359 | * @function
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| 360 | * @param {String} str The text from which remove the spaces.
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| 361 | * @returns {String} The modified string without the boundary spaces.
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| 362 | * @example
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| 363 | * alert( CKEDITOR.tools.trim( ' example ' ); // "example"
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| 364 | */
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| 365 | trim : (function()
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| 366 | {
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| 367 | // We are not using \s because we don't want "non-breaking spaces" to be caught.
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| 368 | var trimRegex = /(?:^[ \t\n\r]+)|(?:[ \t\n\r]+$)/g;
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| 369 | return function( str )
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| 370 | {
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| 371 | return str.replace( trimRegex, '' ) ;
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| 372 | };
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| 373 | })(),
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| 374 |
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| 375 | /**
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| 376 | * Remove spaces from the start (left) of a string. The following
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| 377 | * characters are removed: space, tab, line break, line feed.
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| 378 | * @function
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| 379 | * @param {String} str The text from which remove the spaces.
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| 380 | * @returns {String} The modified string excluding the removed spaces.
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| 381 | * @example
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| 382 | * alert( CKEDITOR.tools.ltrim( ' example ' ); // "example "
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| 383 | */
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| 384 | ltrim : (function()
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| 385 | {
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| 386 | // We are not using \s because we don't want "non-breaking spaces" to be caught.
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| 387 | var trimRegex = /^[ \t\n\r]+/g;
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| 388 | return function( str )
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| 389 | {
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| 390 | return str.replace( trimRegex, '' ) ;
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| 391 | };
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| 392 | })(),
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| 393 |
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| 394 | /**
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| 395 | * Remove spaces from the end (right) of a string. The following
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| 396 | * characters are removed: space, tab, line break, line feed.
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| 397 | * @function
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| 398 | * @param {String} str The text from which remove the spaces.
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| 399 | * @returns {String} The modified string excluding the removed spaces.
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| 400 | * @example
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| 401 | * alert( CKEDITOR.tools.ltrim( ' example ' ); // " example"
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| 402 | */
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| 403 | rtrim : (function()
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| 404 | {
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| 405 | // We are not using \s because we don't want "non-breaking spaces" to be caught.
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| 406 | var trimRegex = /[ \t\n\r]+$/g;
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| 407 | return function( str )
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| 408 | {
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| 409 | return str.replace( trimRegex, '' ) ;
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| 410 | };
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| 411 | })(),
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| 412 |
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| 413 | /**
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| 414 | * Returns the index of an element in an array.
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| 415 | * @param {Array} array The array to be searched.
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| 416 | * @param {Object} entry The element to be found.
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| 417 | * @returns {Number} The (zero based) index of the first entry that matches
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| 418 | * the entry, or -1 if not found.
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| 419 | * @example
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| 420 | * var letters = [ 'a', 'b', 0, 'c', false ];
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| 421 | * alert( CKEDITOR.tools.indexOf( letters, '0' ) ); "-1" because 0 !== '0'
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| 422 | * alert( CKEDITOR.tools.indexOf( letters, false ) ); "4" because 0 !== false
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| 423 | */
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| 424 | indexOf :
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| 425 | // #2514: We should try to use Array.indexOf if it does exist.
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| 426 | ( Array.prototype.indexOf ) ?
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| 427 | function( array, entry )
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| 428 | {
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| 429 | return array.indexOf( entry );
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| 430 | }
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| 431 | :
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| 432 | function( array, entry )
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| 433 | {
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| 434 | for ( var i = 0, len = array.length ; i < len ; i++ )
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| 435 | {
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| 436 | if ( array[ i ] === entry )
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| 437 | return i;
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| 438 | }
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| 439 | return -1;
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| 440 | },
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| 441 |
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| 442 | bind : function( func, obj )
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| 443 | {
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| 444 | return function() { return func.apply( obj, arguments ); };
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| 445 | },
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| 446 |
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| 447 | /**
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| 448 | * Class creation based on prototype inheritance, with supports of the
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| 449 | * following features:
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| 450 | * <ul>
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| 451 | * <li> Static fields </li>
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| 452 | * <li> Private fields </li>
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| 453 | * <li> Public(prototype) fields </li>
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| 454 | * <li> Chainable base class constructor </li>
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| 455 | * </ul>
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| 456 | *
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| 457 | * @param {Object} definiton (Optional)The class definiton object.
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| 458 | */
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| 459 | createClass : function( definition )
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| 460 | {
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| 461 | var $ = definition.$,
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| 462 | baseClass = definition.base,
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| 463 | privates = definition.privates || definition._,
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| 464 | proto = definition.proto,
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| 465 | statics = definition.statics;
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| 466 |
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| 467 | if ( privates )
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| 468 | {
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| 469 | var originalConstructor = $;
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| 470 | $ = function()
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| 471 | {
|
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| 472 | // Create (and get) the private namespace.
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| 473 | var _ = this._ || ( this._ = {} );
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| 474 |
|
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| 475 | // Make some magic so "this" will refer to the main
|
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| 476 | // instance when coding private functions.
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| 477 | for ( var privateName in privates )
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| 478 | {
|
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| 479 | var priv = privates[ privateName ];
|
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| 480 |
|
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| 481 | _[ privateName ] =
|
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| 482 | ( typeof priv == 'function' ) ? CKEDITOR.tools.bind( priv, this ) : priv;
|
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| 483 | }
|
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| 484 |
|
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| 485 | originalConstructor.apply( this, arguments );
|
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| 486 | };
|
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| 487 | }
|
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| 488 |
|
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| 489 | if ( baseClass )
|
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| 490 | {
|
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| 491 | $.prototype = this.prototypedCopy( baseClass.prototype );
|
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| 492 | $.prototype.constructor = $;
|
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| 493 | $.prototype.base = function()
|
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| 494 | {
|
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| 495 | this.base = baseClass.prototype.base;
|
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| 496 | baseClass.apply( this, arguments );
|
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| 497 | this.base = arguments.callee;
|
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| 498 | };
|
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| 499 | }
|
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| 500 |
|
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| 501 | if ( proto )
|
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| 502 | this.extend( $.prototype, proto, true );
|
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| 503 |
|
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| 504 | if ( statics )
|
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| 505 | this.extend( $, statics, true );
|
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| 506 |
|
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| 507 | return $;
|
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| 508 | },
|
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| 509 |
|
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| 510 | addFunction : function( fn, scope )
|
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| 511 | {
|
---|
| 512 | return functions.push( function()
|
---|
| 513 | {
|
---|
| 514 | fn.apply( scope || this, arguments );
|
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| 515 | }) - 1;
|
---|
| 516 | },
|
---|
| 517 |
|
---|
| 518 | callFunction : function( index )
|
---|
| 519 | {
|
---|
| 520 | var fn = functions[ index ];
|
---|
| 521 | return fn.apply( window, Array.prototype.slice.call( arguments, 1 ) );
|
---|
| 522 | },
|
---|
| 523 |
|
---|
| 524 | cssLength : (function()
|
---|
| 525 | {
|
---|
| 526 | var decimalRegex = /^\d+(?:\.\d+)?$/;
|
---|
| 527 | return function( length )
|
---|
| 528 | {
|
---|
| 529 | return length + ( decimalRegex.test( length ) ? 'px' : '' );
|
---|
| 530 | };
|
---|
| 531 | })(),
|
---|
| 532 |
|
---|
| 533 | repeat : function( str, times )
|
---|
| 534 | {
|
---|
| 535 | return new Array( times + 1 ).join( str );
|
---|
| 536 | }
|
---|
| 537 | };
|
---|
| 538 | })();
|
---|
| 539 |
|
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| 540 | // PACKAGER_RENAME( CKEDITOR.tools )
|
---|