1 | /*! |
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2 | * Ext JS Library 3.0.0 |
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3 | * Copyright(c) 2006-2009 Ext JS, LLC |
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4 | * licensing@extjs.com |
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5 | * http://www.extjs.com/license |
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6 | */ |
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7 | /** |
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8 | * @class Ext.form.TextField |
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9 | * @extends Ext.form.Field |
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10 | * <p>Basic text field. Can be used as a direct replacement for traditional text inputs, |
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11 | * or as the base class for more sophisticated input controls (like {@link Ext.form.TextArea} |
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12 | * and {@link Ext.form.ComboBox}).</p> |
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13 | * <p><b><u>Validation</u></b></p> |
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14 | * <p>Field validation is processed in a particular order. If validation fails at any particular |
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15 | * step the validation routine halts.</p> |
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16 | * <div class="mdetail-params"><ul> |
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17 | * <li><b>1. Field specific validator</b> |
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18 | * <div class="sub-desc"> |
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19 | * <p>If a field is configured with a <code>{@link Ext.form.TextField#validator validator}</code> function, |
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20 | * it will be passed the current field value. The <code>{@link Ext.form.TextField#validator validator}</code> |
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21 | * function is expected to return boolean <tt>true</tt> if the value is valid or return a string to |
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22 | * represent the invalid message if invalid.</p> |
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23 | * </div></li> |
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24 | * <li><b>2. Built in Validation</b> |
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25 | * <div class="sub-desc"> |
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26 | * <p>Basic validation is affected with the following configuration properties:</p> |
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27 | * <pre> |
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28 | * <u>Validation</u> <u>Invalid Message</u> |
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29 | * <code>{@link Ext.form.TextField#allowBlank allowBlank} {@link Ext.form.TextField#emptyText emptyText}</code> |
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30 | * <code>{@link Ext.form.TextField#minLength minLength} {@link Ext.form.TextField#minLengthText minLengthText}</code> |
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31 | * <code>{@link Ext.form.TextField#maxLength maxLength} {@link Ext.form.TextField#maxLengthText maxLengthText}</code> |
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32 | * </pre> |
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33 | * </div></li> |
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34 | * <li><b>3. Preconfigured Validation Types (VTypes)</b> |
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35 | * <div class="sub-desc"> |
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36 | * <p>Using VTypes offers a convenient way to reuse validation. If a field is configured with a |
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37 | * <code>{@link Ext.form.TextField#vtype vtype}</code>, the corresponding {@link Ext.form.VTypes VTypes} |
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38 | * validation function will be used for validation. If invalid, either the field's |
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39 | * <code>{@link Ext.form.TextField#vtypeText vtypeText}</code> or the VTypes vtype Text property will be |
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40 | * used for the invalid message. Keystrokes on the field will be filtered according to the VTypes |
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41 | * vtype Mask property.</p> |
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42 | * </div></li> |
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43 | * <li><b>4. Field specific regex test</b> |
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44 | * <div class="sub-desc"> |
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45 | * <p>Each field may also specify a <code>{@link Ext.form.TextField#regex regex}</code> test. |
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46 | * The invalid message for this test is configured with |
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47 | * <code>{@link Ext.form.TextField#regexText regexText}</code>.</p> |
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48 | * </div></li> |
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49 | * <li><b>Alter Validation Behavior</b> |
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50 | * <div class="sub-desc"> |
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51 | * <p>Validation behavior for each field can be configured:</p><ul> |
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52 | * <li><code>{@link Ext.form.TextField#invalidText invalidText}</code> : the default validation message to |
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53 | * show if any validation step above does not provide a message when invalid</li> |
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54 | * <li><code>{@link Ext.form.TextField#maskRe maskRe}</code> : filter out keystrokes before any validation occurs</li> |
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55 | * <li><code>{@link Ext.form.TextField#stripCharsRe stripCharsRe}</code> : filter characters after being typed in, |
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56 | * but before being validated</li> |
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57 | * <li><code>{@link Ext.form.Field#invalidClass invalidClass}</code> : alternate style when invalid</li> |
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58 | * <li><code>{@link Ext.form.Field#validateOnBlur validateOnBlur}</code>, |
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59 | * <code>{@link Ext.form.Field#validationDelay validationDelay}</code>, and |
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60 | * <code>{@link Ext.form.Field#validationEvent validationEvent}</code> : modify how/when validation is triggered</li> |
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61 | * </ul> |
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62 | * </div></li> |
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63 | * </ul></div> |
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64 | * @constructor |
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65 | * Creates a new TextField |
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66 | * @param {Object} config Configuration options |
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67 | * @xtype textfield |
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68 | */ |
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69 | Ext.form.TextField = Ext.extend(Ext.form.Field, { |
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70 | /** |
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71 | * @cfg {String} vtypeText A custom error message to display in place of the default message provided |
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72 | * for the <b><code>{@link #vtype}</code></b> currently set for this field (defaults to <tt>''</tt>). <b>Note</b>: |
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73 | * only applies if <b><code>{@link #vtype}</code></b> is set, else ignored. |
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74 | */ |
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75 | /** |
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76 | * @cfg {RegExp} stripCharsRe A JavaScript RegExp object used to strip unwanted content from the value |
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77 | * before validation (defaults to <tt>null</tt>). |
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78 | */ |
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79 | /** |
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80 | * @cfg {Boolean} grow <tt>true</tt> if this field should automatically grow and shrink to its content |
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81 | * (defaults to <tt>false</tt>) |
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82 | */ |
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83 | grow : false, |
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84 | /** |
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85 | * @cfg {Number} growMin The minimum width to allow when <code><b>{@link #grow}</b> = true</code> (defaults |
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86 | * to <tt>30</tt>) |
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87 | */ |
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88 | growMin : 30, |
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89 | /** |
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90 | * @cfg {Number} growMax The maximum width to allow when <code><b>{@link #grow}</b> = true</code> (defaults |
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91 | * to <tt>800</tt>) |
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92 | */ |
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93 | growMax : 800, |
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94 | /** |
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95 | * @cfg {String} vtype A validation type name as defined in {@link Ext.form.VTypes} (defaults to <tt>null</tt>) |
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96 | */ |
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97 | vtype : null, |
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98 | /** |
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99 | * @cfg {RegExp} maskRe An input mask regular expression that will be used to filter keystrokes that do |
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100 | * not match (defaults to <tt>null</tt>) |
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101 | */ |
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102 | maskRe : null, |
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103 | /** |
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104 | * @cfg {Boolean} disableKeyFilter Specify <tt>true</tt> to disable input keystroke filtering (defaults |
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105 | * to <tt>false</tt>) |
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106 | */ |
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107 | disableKeyFilter : false, |
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108 | /** |
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109 | * @cfg {Boolean} allowBlank Specify <tt>false</tt> to validate that the value's length is > 0 (defaults to |
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110 | * <tt>true</tt>) |
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111 | */ |
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112 | allowBlank : true, |
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113 | /** |
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114 | * @cfg {Number} minLength Minimum input field length required (defaults to <tt>0</tt>) |
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115 | */ |
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116 | minLength : 0, |
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117 | /** |
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118 | * @cfg {Number} maxLength Maximum input field length allowed by validation (defaults to Number.MAX_VALUE). |
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119 | * This behavior is intended to provide instant feedback to the user by improving usability to allow pasting |
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120 | * and editing or overtyping and back tracking. To restrict the maximum number of characters that can be |
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121 | * entered into the field use <tt><b>{@link Ext.form.Field#autoCreate autoCreate}</b></tt> to add |
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122 | * any attributes you want to a field, for example:<pre><code> |
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123 | var myField = new Ext.form.NumberField({ |
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124 | id: 'mobile', |
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125 | anchor:'90%', |
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126 | fieldLabel: 'Mobile', |
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127 | maxLength: 16, // for validation |
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128 | autoCreate: {tag: 'input', type: 'text', size: '20', autocomplete: 'off', maxlength: '10'} |
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129 | }); |
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130 | </code></pre> |
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131 | */ |
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132 | maxLength : Number.MAX_VALUE, |
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133 | /** |
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134 | * @cfg {String} minLengthText Error text to display if the <b><tt>{@link #minLength minimum length}</tt></b> |
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135 | * validation fails (defaults to <tt>'The minimum length for this field is {minLength}'</tt>) |
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136 | */ |
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137 | minLengthText : 'The minimum length for this field is {0}', |
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138 | /** |
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139 | * @cfg {String} maxLengthText Error text to display if the <b><tt>{@link #maxLength maximum length}</tt></b> |
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140 | * validation fails (defaults to <tt>'The maximum length for this field is {maxLength}'</tt>) |
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141 | */ |
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142 | maxLengthText : 'The maximum length for this field is {0}', |
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143 | /** |
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144 | * @cfg {Boolean} selectOnFocus <tt>true</tt> to automatically select any existing field text when the field |
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145 | * receives input focus (defaults to <tt>false</tt>) |
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146 | */ |
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147 | selectOnFocus : false, |
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148 | /** |
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149 | * @cfg {String} blankText The error text to display if the <b><tt>{@link #allowBlank}</tt></b> validation |
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150 | * fails (defaults to <tt>'This field is required'</tt>) |
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151 | */ |
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152 | blankText : 'This field is required', |
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153 | /** |
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154 | * @cfg {Function} validator A custom validation function to be called during field validation |
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155 | * (defaults to <tt>null</tt>). If specified, this function will be called first, allowing the |
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156 | * developer to override the default validation process. This function will be passed the current |
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157 | * field value and expected to return boolean <tt>true</tt> if the value is valid or a string |
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158 | * error message if invalid. |
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159 | */ |
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160 | validator : null, |
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161 | /** |
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162 | * @cfg {RegExp} regex A JavaScript RegExp object to be tested against the field value during validation |
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163 | * (defaults to <tt>null</tt>). If the test fails, the field will be marked invalid using |
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164 | * <b><tt>{@link #regexText}</tt></b>. |
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165 | */ |
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166 | regex : null, |
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167 | /** |
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168 | * @cfg {String} regexText The error text to display if <b><tt>{@link #regex}</tt></b> is used and the |
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169 | * test fails during validation (defaults to <tt>''</tt>) |
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170 | */ |
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171 | regexText : '', |
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172 | /** |
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173 | * @cfg {String} emptyText The default text to place into an empty field (defaults to <tt>null</tt>). |
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174 | * <b>Note</b>: that this value will be submitted to the server if this field is enabled and configured |
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175 | * with a {@link #name}. |
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176 | */ |
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177 | emptyText : null, |
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178 | /** |
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179 | * @cfg {String} emptyClass The CSS class to apply to an empty field to style the <b><tt>{@link #emptyText}</tt></b> |
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180 | * (defaults to <tt>'x-form-empty-field'</tt>). This class is automatically added and removed as needed |
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181 | * depending on the current field value. |
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182 | */ |
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183 | emptyClass : 'x-form-empty-field', |
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184 | |
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185 | /** |
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186 | * @cfg {Boolean} enableKeyEvents <tt>true</tt> to enable the proxying of key events for the HTML input |
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187 | * field (defaults to <tt>false</tt>) |
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188 | */ |
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189 | |
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190 | initComponent : function(){ |
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191 | Ext.form.TextField.superclass.initComponent.call(this); |
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192 | this.addEvents( |
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193 | /** |
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194 | * @event autosize |
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195 | * Fires when the <tt><b>{@link #autoSize}</b></tt> function is triggered. The field may or |
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196 | * may not have actually changed size according to the default logic, but this event provides |
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197 | * a hook for the developer to apply additional logic at runtime to resize the field if needed. |
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198 | * @param {Ext.form.Field} this This text field |
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199 | * @param {Number} width The new field width |
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200 | */ |
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201 | 'autosize', |
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202 | |
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203 | /** |
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204 | * @event keydown |
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205 | * Keydown input field event. This event only fires if <tt><b>{@link #enableKeyEvents}</b></tt> |
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206 | * is set to true. |
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207 | * @param {Ext.form.TextField} this This text field |
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208 | * @param {Ext.EventObject} e |
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209 | */ |
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210 | 'keydown', |
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211 | /** |
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212 | * @event keyup |
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213 | * Keyup input field event. This event only fires if <tt><b>{@link #enableKeyEvents}</b></tt> |
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214 | * is set to true. |
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215 | * @param {Ext.form.TextField} this This text field |
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216 | * @param {Ext.EventObject} e |
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217 | */ |
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218 | 'keyup', |
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219 | /** |
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220 | * @event keypress |
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221 | * Keypress input field event. This event only fires if <tt><b>{@link #enableKeyEvents}</b></tt> |
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222 | * is set to true. |
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223 | * @param {Ext.form.TextField} this This text field |
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224 | * @param {Ext.EventObject} e |
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225 | */ |
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226 | 'keypress' |
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227 | ); |
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228 | }, |
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229 | |
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230 | // private |
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231 | initEvents : function(){ |
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232 | Ext.form.TextField.superclass.initEvents.call(this); |
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233 | if(this.validationEvent == 'keyup'){ |
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234 | this.validationTask = new Ext.util.DelayedTask(this.validate, this); |
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235 | this.mon(this.el, 'keyup', this.filterValidation, this); |
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236 | } |
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237 | else if(this.validationEvent !== false){ |
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238 | this.mon(this.el, this.validationEvent, this.validate, this, {buffer: this.validationDelay}); |
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239 | } |
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240 | if(this.selectOnFocus || this.emptyText){ |
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241 | this.on('focus', this.preFocus, this); |
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242 | |
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243 | this.mon(this.el, 'mousedown', function(){ |
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244 | if(!this.hasFocus){ |
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245 | this.el.on('mouseup', function(e){ |
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246 | e.preventDefault(); |
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247 | }, this, {single:true}); |
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248 | } |
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249 | }, this); |
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250 | |
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251 | if(this.emptyText){ |
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252 | this.on('blur', this.postBlur, this); |
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253 | this.applyEmptyText(); |
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254 | } |
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255 | } |
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256 | if(this.maskRe || (this.vtype && this.disableKeyFilter !== true && (this.maskRe = Ext.form.VTypes[this.vtype+'Mask']))){ |
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257 | this.mon(this.el, 'keypress', this.filterKeys, this); |
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258 | } |
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259 | if(this.grow){ |
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260 | this.mon(this.el, 'keyup', this.onKeyUpBuffered, this, {buffer: 50}); |
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261 | this.mon(this.el, 'click', this.autoSize, this); |
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262 | } |
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263 | if(this.enableKeyEvents){ |
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264 | this.mon(this.el, 'keyup', this.onKeyUp, this); |
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265 | this.mon(this.el, 'keydown', this.onKeyDown, this); |
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266 | this.mon(this.el, 'keypress', this.onKeyPress, this); |
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267 | } |
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268 | }, |
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269 | |
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270 | processValue : function(value){ |
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271 | if(this.stripCharsRe){ |
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272 | var newValue = value.replace(this.stripCharsRe, ''); |
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273 | if(newValue !== value){ |
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274 | this.setRawValue(newValue); |
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275 | return newValue; |
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276 | } |
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277 | } |
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278 | return value; |
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279 | }, |
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280 | |
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281 | filterValidation : function(e){ |
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282 | if(!e.isNavKeyPress()){ |
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283 | this.validationTask.delay(this.validationDelay); |
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284 | } |
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285 | }, |
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286 | |
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287 | //private |
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288 | onDisable: function(){ |
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289 | Ext.form.TextField.superclass.onDisable.call(this); |
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290 | if(Ext.isIE){ |
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291 | this.el.dom.unselectable = 'on'; |
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292 | } |
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293 | }, |
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294 | |
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295 | //private |
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296 | onEnable: function(){ |
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297 | Ext.form.TextField.superclass.onEnable.call(this); |
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298 | if(Ext.isIE){ |
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299 | this.el.dom.unselectable = ''; |
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300 | } |
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301 | }, |
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302 | |
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303 | // private |
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304 | onKeyUpBuffered : function(e){ |
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305 | if(!e.isNavKeyPress()){ |
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306 | this.autoSize(); |
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307 | } |
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308 | }, |
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309 | |
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310 | // private |
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311 | onKeyUp : function(e){ |
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312 | this.fireEvent('keyup', this, e); |
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313 | }, |
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314 | |
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315 | // private |
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316 | onKeyDown : function(e){ |
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317 | this.fireEvent('keydown', this, e); |
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318 | }, |
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319 | |
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320 | // private |
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321 | onKeyPress : function(e){ |
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322 | this.fireEvent('keypress', this, e); |
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323 | }, |
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324 | |
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325 | /** |
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326 | * Resets the current field value to the originally-loaded value and clears any validation messages. |
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327 | * Also adds <tt><b>{@link #emptyText}</b></tt> and <tt><b>{@link #emptyClass}</b></tt> if the |
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328 | * original value was blank. |
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329 | */ |
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330 | reset : function(){ |
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331 | Ext.form.TextField.superclass.reset.call(this); |
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332 | this.applyEmptyText(); |
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333 | }, |
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334 | |
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335 | applyEmptyText : function(){ |
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336 | if(this.rendered && this.emptyText && this.getRawValue().length < 1 && !this.hasFocus){ |
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337 | this.setRawValue(this.emptyText); |
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338 | this.el.addClass(this.emptyClass); |
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339 | } |
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340 | }, |
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341 | |
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342 | // private |
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343 | preFocus : function(){ |
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344 | var el = this.el; |
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345 | if(this.emptyText){ |
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346 | if(el.dom.value == this.emptyText){ |
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347 | this.setRawValue(''); |
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348 | } |
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349 | el.removeClass(this.emptyClass); |
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350 | } |
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351 | if(this.selectOnFocus){ |
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352 | (function(){ |
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353 | el.dom.select(); |
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354 | }).defer(this.inEditor && Ext.isIE ? 50 : 0); |
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355 | } |
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356 | }, |
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357 | |
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358 | // private |
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359 | postBlur : function(){ |
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360 | this.applyEmptyText(); |
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361 | }, |
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362 | |
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363 | // private |
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364 | filterKeys : function(e){ |
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365 | // special keys don't generate charCodes, so leave them alone |
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366 | if(e.ctrlKey || e.isSpecialKey()){ |
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367 | return; |
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368 | } |
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369 | |
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370 | if(!this.maskRe.test(String.fromCharCode(e.getCharCode()))){ |
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371 | e.stopEvent(); |
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372 | } |
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373 | }, |
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374 | |
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375 | setValue : function(v){ |
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376 | if(this.emptyText && this.el && !Ext.isEmpty(v)){ |
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377 | this.el.removeClass(this.emptyClass); |
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378 | } |
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379 | Ext.form.TextField.superclass.setValue.apply(this, arguments); |
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380 | this.applyEmptyText(); |
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381 | this.autoSize(); |
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382 | return this; |
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383 | }, |
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384 | |
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385 | /** |
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386 | * Validates a value according to the field's validation rules and marks the field as invalid |
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387 | * if the validation fails |
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388 | * @param {Mixed} value The value to validate |
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389 | * @return {Boolean} True if the value is valid, else false |
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390 | */ |
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391 | validateValue : function(value){ |
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392 | if(Ext.isFunction(this.validator)){ |
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393 | var msg = this.validator(value); |
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394 | if(msg !== true){ |
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395 | this.markInvalid(msg); |
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396 | return false; |
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397 | } |
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398 | } |
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399 | if(value.length < 1 || value === this.emptyText){ // if it's blank |
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400 | if(this.allowBlank){ |
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401 | this.clearInvalid(); |
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402 | return true; |
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403 | }else{ |
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404 | this.markInvalid(this.blankText); |
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405 | return false; |
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406 | } |
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407 | } |
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408 | if(value.length < this.minLength){ |
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409 | this.markInvalid(String.format(this.minLengthText, this.minLength)); |
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410 | return false; |
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411 | } |
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412 | if(value.length > this.maxLength){ |
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413 | this.markInvalid(String.format(this.maxLengthText, this.maxLength)); |
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414 | return false; |
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415 | } |
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416 | if(this.vtype){ |
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417 | var vt = Ext.form.VTypes; |
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418 | if(!vt[this.vtype](value, this)){ |
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419 | this.markInvalid(this.vtypeText || vt[this.vtype +'Text']); |
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420 | return false; |
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421 | } |
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422 | } |
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423 | if(this.regex && !this.regex.test(value)){ |
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424 | this.markInvalid(this.regexText); |
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425 | return false; |
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426 | } |
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427 | return true; |
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428 | }, |
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429 | |
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430 | /** |
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431 | * Selects text in this field |
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432 | * @param {Number} start (optional) The index where the selection should start (defaults to 0) |
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433 | * @param {Number} end (optional) The index where the selection should end (defaults to the text length) |
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434 | */ |
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435 | selectText : function(start, end){ |
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436 | var v = this.getRawValue(); |
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437 | var doFocus = false; |
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438 | if(v.length > 0){ |
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439 | start = start === undefined ? 0 : start; |
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440 | end = end === undefined ? v.length : end; |
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441 | var d = this.el.dom; |
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442 | if(d.setSelectionRange){ |
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443 | d.setSelectionRange(start, end); |
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444 | }else if(d.createTextRange){ |
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445 | var range = d.createTextRange(); |
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446 | range.moveStart('character', start); |
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447 | range.moveEnd('character', end-v.length); |
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448 | range.select(); |
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449 | } |
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450 | doFocus = Ext.isGecko || Ext.isOpera; |
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451 | }else{ |
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452 | doFocus = true; |
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453 | } |
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454 | if(doFocus){ |
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455 | this.focus(); |
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456 | } |
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457 | }, |
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458 | |
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459 | /** |
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460 | * Automatically grows the field to accomodate the width of the text up to the maximum field width allowed. |
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461 | * This only takes effect if <tt><b>{@link #grow}</b> = true</tt>, and fires the {@link #autosize} event. |
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462 | */ |
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463 | autoSize : function(){ |
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464 | if(!this.grow || !this.rendered){ |
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465 | return; |
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466 | } |
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467 | if(!this.metrics){ |
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468 | this.metrics = Ext.util.TextMetrics.createInstance(this.el); |
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469 | } |
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470 | var el = this.el; |
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471 | var v = el.dom.value; |
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472 | var d = document.createElement('div'); |
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473 | d.appendChild(document.createTextNode(v)); |
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474 | v = d.innerHTML; |
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475 | d = null; |
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476 | Ext.removeNode(d); |
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477 | v += ' '; |
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478 | var w = Math.min(this.growMax, Math.max(this.metrics.getWidth(v) + /* add extra padding */ 10, this.growMin)); |
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479 | this.el.setWidth(w); |
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480 | this.fireEvent('autosize', this, w); |
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481 | }, |
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482 | |
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483 | onDestroy: function(){ |
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484 | if(this.validationTask){ |
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485 | this.validationTask.cancel(); |
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486 | this.validationTask = null; |
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487 | } |
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488 | Ext.form.TextField.superclass.onDestroy.call(this); |
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489 | } |
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490 | }); |
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491 | Ext.reg('textfield', Ext.form.TextField); |
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