ajax-submission.js
3 years ago
ajax-submission.min.js
3 years ago
everest-forms.js
3 years ago
everest-forms.min.js
3 years ago
text-limit.js
6 years ago
text-limit.min.js
4 years ago
text-limit.js
180 lines
| 1 | /* global everest_forms_text_limit_params */ |
| 2 | jQuery( function() { |
| 3 | 'use strict'; |
| 4 | |
| 5 | // everest_forms_text_limit_params is required to continue, ensure the object exists. |
| 6 | if ( typeof everest_forms_text_limit_params === 'undefined' ) { |
| 7 | return false; |
| 8 | } |
| 9 | |
| 10 | /** |
| 11 | * TextLimitHandler class. |
| 12 | */ |
| 13 | var TextLimitHandler = function() { |
| 14 | self = this; |
| 15 | |
| 16 | // Limit by characters. |
| 17 | Array.prototype.slice.call( document.querySelectorAll( '.everest-forms-limit-characters-enabled' ) ).map( function( event ) { |
| 18 | var limit = parseInt( event.dataset.textLimit, 10 ) || 0; |
| 19 | event.value = event.value.slice( 0, limit ); |
| 20 | var hint = self.createHint( |
| 21 | event.dataset.formId, |
| 22 | event.dataset.fieldId, |
| 23 | self.renderHint( |
| 24 | everest_forms_text_limit_params.i18n_messages_limit_characters, |
| 25 | event.value.length, |
| 26 | limit |
| 27 | ) |
| 28 | ); |
| 29 | event.parentNode.appendChild( hint ); |
| 30 | |
| 31 | // Event listener. |
| 32 | event.addEventListener( 'keyup', self.checkCharacters( hint, limit ) ); |
| 33 | event.addEventListener( 'keydown', self.checkCharacters( hint, limit ) ); |
| 34 | } ); |
| 35 | |
| 36 | // Limit by words count. |
| 37 | Array.prototype.slice.call( document.querySelectorAll( '.everest-forms-limit-words-enabled' ) ).map( function( event ) { |
| 38 | var limit = parseInt( event.dataset.textLimit, 10 ) || 0; |
| 39 | event.value = event.value.trim().split( /\s+/ ).slice( 0, limit ).join( ' ' ); |
| 40 | var hint = self.createHint( |
| 41 | event.dataset.formId, |
| 42 | event.dataset.fieldId, |
| 43 | self.renderHint( |
| 44 | everest_forms_text_limit_params.i18n_messages_limit_words, |
| 45 | event.value.trim().split( /\s+/ ).length, |
| 46 | limit |
| 47 | ) |
| 48 | ); |
| 49 | event.parentNode.appendChild( hint ); |
| 50 | |
| 51 | // Event listener. |
| 52 | event.addEventListener( 'keyup', self.checkWords( hint, limit ) ); |
| 53 | event.addEventListener( 'keydown', self.checkWords( hint, limit ) ); |
| 54 | event.addEventListener( 'paste', self.pasteWords( limit ) ); |
| 55 | } ); |
| 56 | }; |
| 57 | |
| 58 | /** |
| 59 | * Predefine hint text to display. |
| 60 | * |
| 61 | * @since 1.6.0 |
| 62 | * |
| 63 | * @param {string} hintText Hint text. |
| 64 | * @param {number} count Current count. |
| 65 | * @param {number} limit Limit to. |
| 66 | * |
| 67 | * @returns {string} Predefined hint text. |
| 68 | */ |
| 69 | TextLimitHandler.prototype.renderHint = function( hintText, count, limit ) { |
| 70 | return hintText.replace( '{count}', count ).replace( '{limit}', limit ); |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Create HTMLElement hint element with text. |
| 75 | * |
| 76 | * @since 1.6.0 |
| 77 | * |
| 78 | * @param {number} formId Form id. |
| 79 | * @param {number} fieldId Form field id. |
| 80 | * @param {string} text Text to hint element. |
| 81 | * |
| 82 | * @returns {object} HTMLElement hint element with text. |
| 83 | */ |
| 84 | TextLimitHandler.prototype.createHint = function( formId, fieldId, text ) { |
| 85 | var hint = document.createElement( 'div' ); |
| 86 | |
| 87 | hint.classList.add( 'everest-forms-field-limit-text' ); |
| 88 | hint.id = 'everest-forms-field-limit-text-' + formId + '-' + fieldId; |
| 89 | hint.textContent = text; |
| 90 | |
| 91 | return hint; |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * Keyup/Keydown event higher order function for characters limit. |
| 96 | * |
| 97 | * @since 1.6.0 |
| 98 | * |
| 99 | * @param {object} hint HTMLElement hint element. |
| 100 | * @param {number} limit Max allowed number of characters. |
| 101 | * |
| 102 | * @returns {Function} Handler function. |
| 103 | */ |
| 104 | TextLimitHandler.prototype.checkCharacters = function( hint, limit ) { |
| 105 | return function( event ) { |
| 106 | hint.textContent = self.renderHint( |
| 107 | everest_forms_text_limit_params.i18n_messages_limit_characters, |
| 108 | this.value.length, |
| 109 | limit |
| 110 | ); |
| 111 | }; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Keyup/Keydown event higher order function for words limit. |
| 116 | * |
| 117 | * @since 1.6.0 |
| 118 | * |
| 119 | * @param {object} hint HTMLElement hint element. |
| 120 | * @param {number} limit Max allowed number of characters. |
| 121 | * |
| 122 | * @returns {Function} Handler function. |
| 123 | */ |
| 124 | TextLimitHandler.prototype.checkWords = function( hint, limit ) { |
| 125 | return function( event ) { |
| 126 | var words = this.value.trim().split( /\s+/ ); |
| 127 | |
| 128 | if ( event.keyCode === 32 && words.length >= limit ) { |
| 129 | event.preventDefault(); |
| 130 | } |
| 131 | |
| 132 | hint.textContent = self.renderHint( |
| 133 | everest_forms_text_limit_params.i18n_messages_limit_words, |
| 134 | words.length, |
| 135 | limit |
| 136 | ); |
| 137 | }; |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Get passed text from clipboard. |
| 142 | * |
| 143 | * @since 1.6.0 |
| 144 | * |
| 145 | * @param {ClipboardEvent} e Clipboard event. |
| 146 | * |
| 147 | * @returns {string} Text from clipboard. |
| 148 | */ |
| 149 | TextLimitHandler.prototype.getPastedText = function( event ) { |
| 150 | if ( window.clipboardData && window.clipboardData.getData ) { // IE |
| 151 | return window.clipboardData.getData( 'Text' ); |
| 152 | } else if ( event.clipboardData && event.clipboardData.getData ) { |
| 153 | return event.clipboardData.getData( 'text/plain' ); |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * Paste event higher order function for words limit. |
| 159 | * |
| 160 | * @since 1.6.0 |
| 161 | * |
| 162 | * @param {number} limit Max allowed number of words. |
| 163 | * |
| 164 | * @returns {Function} Event handler. |
| 165 | */ |
| 166 | TextLimitHandler.prototype.pasteWords = function( limit ) { |
| 167 | return function( event ) { |
| 168 | event.preventDefault(); |
| 169 | var pastedText = self.getPastedText( event ).trim().split( /\s+/ ); |
| 170 | pastedText.splice( limit, pastedText.length ); |
| 171 | this.value = pastedText.join( ' ' ); |
| 172 | }; |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Init TextLimitHandler. |
| 177 | */ |
| 178 | new TextLimitHandler(); |
| 179 | }); |
| 180 |