| OLD | NEW |
|---|
| (Empty) |
| 1 <!-- | |
| 2 Copyright (c) 2014 The Polymer Project Authors. All rights reserved. | |
| 3 This code may only be used under the BSD style license found at http://polymer.g
ithub.io/LICENSE | |
| 4 The complete set of authors may be found at http://polymer.github.io/AUTHORS | |
| 5 The complete set of contributors may be found at http://polymer.github.io/CONTRI
BUTORS | |
| 6 Code distributed by Google as part of the polymer project is also | |
| 7 subject to an additional IP rights grant found at http://polymer.github.io/PATEN
TS | |
| 8 --> | |
| 9 | |
| 10 <!-- | |
| 11 `paper-autogrow-textarea` is an element containing a textarea that grows in heig
ht as more | |
| 12 lines of input are entered. Unless an explicit height or the `maxRows` property
is set, it will | |
| 13 never scroll. | |
| 14 | |
| 15 Example: | |
| 16 | |
| 17 <paper-autogrow-textarea id="a1"> | |
| 18 <textarea id="t1"></textarea> | |
| 19 <paper-autogrow-textarea> | |
| 20 | |
| 21 Because the `textarea`'s `value` property is not observable, if you set the `val
ue` imperatively | |
| 22 you must call `update` to notify this element the value has changed. | |
| 23 | |
| 24 Example: | |
| 25 | |
| 26 /* using example HTML above */ | |
| 27 t1.value = 'some\ntext'; | |
| 28 a1.update(); | |
| 29 | |
| 30 @group Paper Elements | |
| 31 @element paper-autogrow-textarea | |
| 32 @status unstable | |
| 33 --> | |
| 34 | |
| 35 <link href="../polymer/polymer.html" rel="import"> | |
| 36 | |
| 37 <polymer-element name="paper-autogrow-textarea" on-input="{{inputAction}}"> | |
| 38 <template> | |
| 39 | |
| 40 <style> | |
| 41 :host { | |
| 42 display: inline-block; | |
| 43 position: relative; | |
| 44 width: 400px; | |
| 45 } | |
| 46 | |
| 47 .mirror-text { | |
| 48 visibility: hidden; | |
| 49 } | |
| 50 | |
| 51 ::content textarea { | |
| 52 padding: 0; | |
| 53 margin: 0; | |
| 54 border: none; | |
| 55 outline: none; | |
| 56 resize: none; | |
| 57 /* see comments in template */ | |
| 58 width: 100%; | |
| 59 height: 100%; | |
| 60 } | |
| 61 | |
| 62 ::content textarea:invalid { | |
| 63 box-shadow: none; | |
| 64 } | |
| 65 </style> | |
| 66 | |
| 67 <!-- the mirror sizes the input/textarea so it grows with typing --> | |
| 68 <div id="mirror" class="mirror-text" aria-hidden="true"> </div> | |
| 69 | |
| 70 <!-- size the input/textarea with a div, because the textarea has intrinsic si
ze in ff --> | |
| 71 <div class="textarea-container" fit> | |
| 72 <content></content> | |
| 73 </div> | |
| 74 | |
| 75 </template> | |
| 76 <script> | |
| 77 | |
| 78 Polymer({ | |
| 79 | |
| 80 publish: { | |
| 81 | |
| 82 /** | |
| 83 * The textarea that should auto grow. | |
| 84 * | |
| 85 * @attribute target | |
| 86 * @type HTMLTextAreaElement | |
| 87 * @default null | |
| 88 */ | |
| 89 target: null, | |
| 90 | |
| 91 /** | |
| 92 * The initial number of rows. | |
| 93 * | |
| 94 * @attribute rows | |
| 95 * @type number | |
| 96 * @default 1 | |
| 97 */ | |
| 98 rows: 1, | |
| 99 | |
| 100 /** | |
| 101 * The maximum number of rows this element can grow to until it | |
| 102 * scrolls. 0 means no maximum. | |
| 103 * | |
| 104 * @attribute maxRows | |
| 105 * @type number | |
| 106 * @default 0 | |
| 107 */ | |
| 108 maxRows: 0 | |
| 109 }, | |
| 110 | |
| 111 tokens: null, | |
| 112 | |
| 113 observe: { | |
| 114 rows: 'updateCached', | |
| 115 maxRows: 'updateCached' | |
| 116 }, | |
| 117 | |
| 118 constrain: function(tokens) { | |
| 119 var _tokens; | |
| 120 tokens = tokens || ['']; | |
| 121 // Enforce the min and max heights for a multiline input to avoid measurem
ent | |
| 122 if (this.maxRows > 0 && tokens.length > this.maxRows) { | |
| 123 _tokens = tokens.slice(0, this.maxRows); | |
| 124 } else { | |
| 125 _tokens = tokens.slice(0); | |
| 126 } | |
| 127 while (this.rows > 0 && _tokens.length < this.rows) { | |
| 128 _tokens.push(''); | |
| 129 } | |
| 130 return _tokens.join('<br>') + ' '; | |
| 131 }, | |
| 132 | |
| 133 valueForMirror: function(input) { | |
| 134 this.tokens = (input && input.value) ? input.value.replace(/&/gm, '&')
.replace(/"/gm, '"').replace(/'/gm, ''').replace(/</gm, '<').replace
(/>/gm, '>').split('\n') : ['']; | |
| 135 return this.constrain(this.tokens); | |
| 136 }, | |
| 137 | |
| 138 /** | |
| 139 * Sizes this element to fit the input value. This function is automatically
called | |
| 140 * when the user types in new input, but you must call this function if the
value | |
| 141 * is updated imperatively. | |
| 142 * | |
| 143 * @method update | |
| 144 * @param Element The input | |
| 145 */ | |
| 146 update: function(input) { | |
| 147 this.$.mirror.innerHTML = this.valueForMirror(input); | |
| 148 }, | |
| 149 | |
| 150 updateCached: function() { | |
| 151 this.$.mirror.innerHTML = this.constrain(this.tokens); | |
| 152 }, | |
| 153 | |
| 154 inputAction: function(e) { | |
| 155 this.update(e.target); | |
| 156 } | |
| 157 | |
| 158 }); | |
| 159 | |
| 160 </script> | |
| 161 </polymer-element> | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1215543002:
Remove Polymer 0.5. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master