anypoint-text-field/anypoint-text-textarea.html at stage · arc-archive/anypoint-text-field · GitHub

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<!--
@license
Copyright 2017 Mulesoft.

All rights reserved.
-->
<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../iron-form-element-behavior/iron-form-element-behavior.html">
<link rel="import" href="../anypoint-input/anypoint-input.html">
<link rel="import" href="anypoint-text-container.html">
<link rel="import" href="anypoint-text-behavior.html">
<link rel="import" href="anypoint-validation-result.html">

<!--
`<anypoint-text-field>` is a mu;lti line text input styled for the Anypoint platform
as a Polymer powered web component

### Example
```
<anypoint-text-textarea></anypoint-text-textarea>
```

### Styling
See `anypoint-text-container` for styling options.

@demo demo/index.html
-->
<dom-module id="anypoint-text-textarea">
  <template>
    <style>
    :host {
      display: block;
    }

    :host {
      display: block;
    }

    :host([hidden]) {
      display: none !important;
    }

    label {
      pointer-events: none;
    }

    anypoint-validation-result {
      -webkit-transform-origin: center center;
      transform-origin: center center;
      -webkit-transition: all .2s ease-out;
      transition: all .2s ease-out;
    }

    :host(:not([focused])) anypoint-validation-result {
      transform: translate(2px);
    }
    </style>
    <anypoint-text-container
      no-label-float
      auto-validate$="[[autoValidate]]"
      disabled$="[[disabled]]"
      invalid="[[invalid]]">

      <textarea id="textarea"
        disabled$="[[disabled]]"
        title$="[[title]]"
        bind-value="{{value}}"
        invalid="{{invalid}}"
        required$="[[required]]"
        autocomplete$="[[autocomplete]]"
        autofocus$="[[autofocus]]"
        inputmode$="[[inputmode]]"
        minlength$="[[minlength]]"
        maxlength$="[[maxlength]]"
        name$="[[name]]"
        placeholder$="[[placeholder]]"
        readonly$="[[readonly]]"
        autocapitalize$="[[autocapitalize]]"
        on-change="_onChange"
        rows$="[[rows]]"></textarea>

      <template is="dom-if" if="[[hasValidationMessage]]">
        <anypoint-validation-result
          aria-live="assertive"
          error-message="[[errorMessage]]"
          invalid="[[invalid]]"
          focused="[[focused]]"
          horizontal-align="right"></anypoint-validation-result>
      </template>

    </anypoint-text-container>
  </template>
  <script>
  Polymer({
    is: 'anypoint-text-textarea',
    behaviors: [
      Polymer.IronFormElementBehavior,
      Anypoint.AnypointTextBehavior
    ],

    properties: {
      _ariaLabelledBy: {
        observer: '_ariaLabelledByChanged',
        type: String
      },
      _ariaDescribedBy: {
        observer: '_ariaDescribedByChanged',
        type: String
      },
      /**
       * The initial number of rows.
       *
       * @type number
       */
      rows: {
        type: Number,
        value: 3
      }
    },

    _ariaLabelledByChanged: function(ariaLabelledBy) {
      this.$.textarea.setAttribute('aria-labelledby', ariaLabelledBy);
    },

    _ariaDescribedByChanged: function(ariaDescribedBy) {
      this.$.textarea.setAttribute('aria-describedby', ariaDescribedBy);
    },

    get _focusableElement() {
      return this.$.textarea;
    }
  });
  </script>
</dom-module>