xref: /external/chromium_org/third_party/polymer/components-chromium/core-input/core-input-extracted.js

    Polymer('core-input', {
      publish: {
        /**
         * Placeholder text that hints to the user what can be entered in
         * the input.
         *
         * @attribute placeholder
         * @type string
         * @default ''
         */
        placeholder: '',

        /**
         * If true, this input cannot be focused and the user cannot change
         * its value.
         *
         * @attribute disabled
         * @type boolean
         * @default false
         */
        disabled: false,

        /**
         * If true, the user cannot modify the value of the input.
         *
         * @attribute readonly
         * @type boolean
         * @default false
         */
        readonly: false,

        /**
         * If true, this input will automatically gain focus on page load.
         *
         * @attribute autofocus
         * @type boolean
         * @default false
         */
        autofocus: false,

        /**
         * If true, this input accepts multi-line input like a `<textarea>`
         *
         * @attribute multiline
         * @type boolean
         * @default false
         */
        multiline: false,

        /**
         * (multiline only) The height of this text input in rows. The input
         * will scroll internally if more input is entered beyond the size
         * of the component. This property is meaningless if multiline is
         * false. You can also set this property to "fit" and size the
         * component with CSS to make the input fit the CSS size.
         *
         * @attribute rows
         * @type number|'fit'
         * @default 'fit'
         */
        rows: 'fit',

        /**
         * The current value of this input. Changing inputValue programmatically
         * will cause value to be out of sync. Instead, change value directly
         * or call commit() after changing inputValue.
         *
         * @attribute inputValue
         * @type string
         * @default ''
         */
        inputValue: '',

        /**
         * The value of the input committed by the user, either by changing the
         * inputValue and blurring the input, or by hitting the `enter` key.
         *
         * @attribute value
         * @type string
         * @default ''
         */
        value: '',

        /**
         * Set the input type. Not supported for `multiline`.
         *
         * @attribute type
         * @type string
         * @default text
         */
        type: 'text',

        /**
         * If true, the input is invalid if its value is null.
         *
         * @attribute required
         * @type boolean
         * @default false
         */
        required: false,

        /**
         * A regular expression to validate the input value against. See
         * https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/HTML5/Constraint_validation#Validation-related_attributes
         * for more info. Not supported if `multiline` is true.
         *
         * @attribute pattern
         * @type string
         * @default '.*'
         */
        // FIXME(yvonne): The default is set to .* because we can't bind to pattern such
        // that the attribute is unset if pattern is null.
        pattern: '.*',

        /**
         * If set, the input is invalid if the value is less than this property. See
         * https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/HTML5/Constraint_validation#Validation-related_attributes
         * for more info. Not supported if `multiline` is true.
         *
         * @attribute min
         */
        min: null,

        /**
         * If set, the input is invalid if the value is greater than this property. See
         * https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/HTML5/Constraint_validation#Validation-related_attributes
         * for more info. Not supported if `multiline` is true.
         *
         * @attribute max
         */
        max: null,

        /**
         * If set, the input is invalid if the value is not `min` plus an integral multiple
         * of this property. See
         * https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/HTML5/Constraint_validation#Validation-related_attributes
         * for more info. Not supported if `multiline` is true.
         *
         * @attribute step
         */
        step: null,

        /**
         * The maximum length of the input value.
         *
         * @attribute maxlength
         * @type number
         */
        maxlength: null,

        /**
         * If this property is true, the text input's inputValue failed validation.
         *
         * @attribute invalid
         * @type boolean
         * @default false
         */
        invalid: false
      },

      ready: function() {
        this.handleTabindex(this.getAttribute('tabindex'));
      },

      invalidChanged: function() {
        this.classList.toggle('invalid', this.invalid);
        this.fire('input-'+ (this.invalid ? 'invalid' : 'valid'), {value: this.inputValue});
      },

      inputValueChanged: function() {
        this.updateValidity_();
      },

      valueChanged: function() {
        this.inputValue = this.value;
      },

      requiredChanged: function() {
        this.updateValidity_();
      },

      attributeChanged: function(attr, oldVal, curVal) {
        if (attr === 'tabindex') {
          this.handleTabindex(curVal);
        }
      },

      handleTabindex: function(tabindex) {
        if (tabindex > 0) {
          this.$.input.setAttribute('tabindex', -1);
        } else {
          this.$.input.removeAttribute('tabindex');
        }
      },

      /**
       * Commits the inputValue to value.
       *
       * @method commit
       */
      commit: function() {
         this.value = this.inputValue;
      },

      updateValidity_: function() {
        if (this.$.input.willValidate) {
          this.invalid = !this.$.input.validity.valid;
        }
      },

      keydownAction: function() {
        // for type = number, the value is the empty string unless the input is a valid number.
        // FIXME(yvonne): check other types
        if (this.type === 'number') {
          this.async(function() {
            this.updateValidity_();
          });
        }
      },

      inputChangeAction: function() {
        this.commit();
        if (!window.ShadowDOMPolyfill) {
          // re-fire event that does not bubble across shadow roots
          this.fire('change', null, this);
        }
      },

      focusAction: function(e) {
        if (this.getAttribute('tabindex') > 0) {
          // Forward focus to the inner input if tabindex is set on the element
          // This will not cause an infinite loop because focus will not fire on the <input>
          // again if it's already focused.
          this.$.input.focus();
        }
      },

      inputFocusAction: function(e) {
        if (window.ShadowDOMPolyfill) {
          // re-fire non-bubbling event if polyfill
          this.fire('focus', null, this, false);
        }
      },

      inputBlurAction: function() {
        if (window.ShadowDOMPolyfill) {
          // re-fire non-bubbling event
          this.fire('blur', null, this, false);
        }
      },

      blur: function() {
        // forward blur method to the internal input / textarea element
        this.$.input.blur();
      },

      click: function() {
        // forward click method to the internal input / textarea element
        this.$.input.click();
      },

      focus: function() {
        // forward focus method to the internal input / textarea element
        this.$.input.focus();
      },

      select: function() {
        // forward select method to the internal input / textarea element
        this.$.input.focus();
      },

      setSelectionRange: function(selectionStart, selectionEnd, selectionDirection) {
        // forward setSelectionRange method to the internal input / textarea element
        this.$.input.setSelectionRange(selectionStart, selectionEnd, selectionDirection);
      },

      setRangeText: function(replacement, start, end, selectMode) {
        // forward setRangeText method to the internal input element
        if (!this.multiline) {
          this.$.input.setRangeText(replacement, start, end, selectMode);
        }
      },

      stepDown: function(n) {
        // forward stepDown method to the internal input element
        if (!this.multiline) {
          this.$.input.stepDown(n);
        }
      },

      stepUp: function(n) {
        // forward stepUp method to the internal input element
        if (!this.multiline) {
          this.$.input.stepUp(n);
        }
      },

      get willValidate() {
        return this.$.input.willValidate;
      },

      get validity() {
        return this.$.input.validity;
      },

      get validationMessage() {
        return this.$.input.validationMessage;
      },

      checkValidity: function() {
        var r = this.$.input.checkValidity();
        this.updateValidity_();
        return r;
      },

      setCustomValidity: function(message) {
        this.$.input.setCustomValidity(message);
        this.updateValidity_();
      }

    });