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third_party/polymer/v0_8/components-chromium/paper-slider/paper-slider-extracted.js

Index: third_party/polymer/v0_8/components-chromium/paper-slider/paper-slider-extracted.js
diff --git a/third_party/polymer/v0_8/components-chromium/paper-slider/paper-slider-extracted.js b/third_party/polymer/v0_8/components-chromium/paper-slider/paper-slider-extracted.js
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index 0000000000000000000000000000000000000000..f69a9d7197afc19c205dd9946149da72225462e3
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+++ b/third_party/polymer/v0_8/components-chromium/paper-slider/paper-slider-extracted.js
@@ -0,0 +1,330 @@
+
+  /**
+   * Fired when the slider's value changes.
+   *
+   * @event value-change
+   */
+
+  /**
+   * Fired when the slider's immediateValue changes.
+   *
+   * @event immediate-value-change
+   */
+
+  /**
+   * Fired when the slider's value changes due to user interaction.
+   *
+   * Changes to the slider's value due to changes in an underlying
+   * bound variable will not trigger this event.
+   *
+   * @event change
+   */
+
+  Polymer({
+    is: 'paper-slider',
+
+    behaviors: [
+      Polymer.IronRangeBehavior,
+      Polymer.IronControlState
+    ],
+
+    properties: {
+
+      /**
+       * If true, the slider thumb snaps to tick marks evenly spaced based
+       * on the `step` property value.
+       */
+      snaps: {
+        type: Boolean,
+        value: false,
+        notify: true
+      },
+
+      /**
+       * If true, a pin with numeric value label is shown when the slider thumb
+       * is pressed.  Use for settings for which users need to know the exact
+       * value of the setting.
+       */
+      pin: {
+        type: Boolean,
+        value: false,
+        notify: true
+      },
+
+      /**
+       * The number that represents the current secondary progress.
+       */
+      secondaryProgress: {
+        type: Number,
+        value: 0,
+        notify: true,
+        observer: '_secondaryProgressChanged'
+      },
+
+      /**
+       * If true, an input is shown and user can use it to set the slider value.
+       */
+      editable: {
+        type: Boolean,
+        value: false
+      },
+
+      /**
+       * The immediate value of the slider.  This value is updated while the user
+       * is dragging the slider.
+       */
+      immediateValue: {
+        type: Number,
+        value: 0,
+        readOnly: true
+      },
+
+      /**
+       * The maximum number of markers
+       */
+      maxMarkers: {
+        type: Number,
+        value: 0,
+        notify: true,
+        observer: '_maxMarkersChanged'
+      },
+
+      /**
+       * If true, the knob is expanded
+       */
+      expand: {
+        type: Boolean,
+        value: false,
+        readOnly: true
+      },
+
+      /**
+       * True when the user is dragging the slider.
+       */
+      dragging: {
+        type: Boolean,
+        value: false,
+        readOnly: true
+      },
+
+      transiting: {
+        type: Boolean,
+        value: false,
+        readOnly: true
+      },
+
+      markers: {
+        readOnly: true,
+        value: []
+      },
+    },
+
+    observers: [
+      '_updateKnob(value, min, max, snaps, step)',
+      '_minChanged(min)',
+      '_maxChanged(max)',
+      '_valueChanged(value)',
+      '_immediateValueChanged(immediateValue)'
+    ],
+
+    ready: function() {
+      // issue polymer/polymer#1305
+      this.async(function() {
+        this._updateKnob(this.value);
+        this._updateInputValue();
+      }, 1);
+    },
+
+    /**
+     * Increases value by `step` but not above `max`.
+     * @method increment
+     */
+    increment: function() {
+      this.value = this._clampValue(this.value + this.step);
+    },
+
+    /**
+     * Decreases value by `step` but not below `min`.
+     * @method decrement
+     */
+    decrement: function() {
+      this.value = this._clampValue(this.value - this.step);
+    },
+
+    _updateKnob: function(value) {
+      this._positionKnob(this._calcRatio(value));
+    },
+
+    _minChanged: function() {
+      this.setAttribute('aria-valuemin', this.min);
+    },
+
+    _maxChanged: function() {
+      this.setAttribute('aria-valuemax', this.max);
+    },
+
+    _valueChanged: function() {
+      this.setAttribute('aria-valuenow', this.value);
+      this.fire('value-change');
+    },
+
+    _immediateValueChanged: function() {
+      if (!this.dragging) {
+        this.value = this.immediateValue;
+      }
+      this._updateInputValue();
+      this.fire('immediate-value-change');
+    },
+
+    _secondaryProgressChanged: function() {
+      this.secondaryProgress = this._clampValue(this.secondaryProgress);
+    },
+
+    _updateInputValue: function() {
+      if (this.editable) {
+        this.$$('#input').value = this.immediateValue;
+      }
+    },
+
+    _expandKnob: function() {
+      this._setExpand(true);
+    },
+
+    _resetKnob: function() {
+      this._expandJob && this._expandJob.stop();
+      this._setExpand(false);
+    },
+
+    _positionKnob: function(ratio) {
+      this._setImmediateValue(this._calcStep(this._calcKnobPosition(ratio)) || 0);
+      this._setRatio(this.snaps ? this._calcRatio(this.immediateValue) : ratio);
+      this.$.sliderKnob.style.left = this.ratio * 100 + '%';
+    },
+
+    _inputChange: function() {
+      this.value = this.$$('#input').value;
+      this.fire('change');
+    },
+
+    _calcKnobPosition: function(ratio) {
+      return (this.max - this.min) * ratio + this.min;
+    },
+
+    _onTrack: function(e) {
+      switch (event.detail.state) {
+        case 'end':
+          this._trackEnd(event);
+          break;
+        case 'track':
+          this._trackX(event);
+          break;
+        case 'start':
+          this._trackStart(event);
+          break;
+      }
+    },
+
+    _trackStart: function(e) {
+      this._w = this.$.sliderBar.offsetWidth;
+      this._x = this.ratio * this._w;
+      this._startx = this._x || 0;
+      this._minx = - this._startx;
+      this._maxx = this._w - this._startx;
+      this.$.sliderKnob.classList.add('dragging');
+      this._setDragging(true);
+      e.preventDefault();
+    },
+
+    _trackX: function(e) {
+      if (!this.dragging) {
+        this._trackStart(e);
+      }
+      var x = Math.min(this._maxx, Math.max(this._minx, e.detail.dx));
+      this._x = this._startx + x;
+      this._setImmediateValue(this._calcStep(
+          this._calcKnobPosition(this._x / this._w)) || 0);
+      var s =  this.$.sliderKnob.style;
+      s.transform = s.webkitTransform = 'translate3d(' + (this.snaps ?
+          (this._calcRatio(this.immediateValue) * this._w) - this._startx : x) + 'px, 0, 0)';
+    },
+
+    _trackEnd: function() {
+      var s =  this.$.sliderKnob.style;
+      s.transform = s.webkitTransform = '';
+      this.$.sliderKnob.classList.remove('dragging');
+      this._setDragging(false);
+      this._resetKnob();
+      this.value = this.immediateValue;
+      this.fire('change');
+    },
+
+    _knobdown: function(e) {
+      e.preventDefault();
+      this._expandKnob();
+    },
+
+    _bardown: function(e) {
+      e.preventDefault();
+      this._setTransiting(true);
+      this._w = this.$.sliderBar.offsetWidth;
+      var rect = this.$.sliderBar.getBoundingClientRect();
+      var ratio = (e.detail.x - rect.left) / this._w;
+      this._positionKnob(ratio);
+      this._expandJob = this.debounce(this._expandJob, this._expandKnob, 60);
+
+      this.async(function() {
+        this.fire('change');
+      });
+    },
+
+    _knobTransitionEnd: function(e) {
+      if (e.target === this.$.sliderKnob) {
+        this._setTransiting(false);
+      }
+    },
+
+    _maxMarkersChanged: function(maxMarkers) {
+      var l = (this.max - this.min) / this.step;
+      if (!this.snaps && l > maxMarkers) {
+        this._setMarkers([]);
+      } else {
+        this._setMarkers(new Array(l));
+      }
+    },
+
+    _getClassNames: function() {
+      var classes = {};
+
+      classes['disabled'] = this.disabled;
+      classes['pin'] = this.pin;
+      classes['snaps'] = this.snaps;
+      classes['ring'] = this.immediateValue <= this.min;
+      classes['expand'] = this.expand;
+      classes['dragging'] = this.dragging;
+      classes['transiting'] = this.transiting;
+      classes['editable'] = this.editable;
+
+      return Object.keys(classes).filter(
+        function(className) {
+          return classes[className];
+        }).join(' ');
+    },
+
+    _incrementKey: function(ev, keys) {
+      if (keys.key === 'end') {
+        this.value = this.max;
+      } else {
+        this.increment();
+      }
+      this.fire('change');
+    },
+
+    _decrementKey: function(ev, keys) {
+      if (keys.key === 'home') {
+        this.value = this.min;
+      } else {
+        this.decrement();
+      }
+      this.fire('change');
+    }
+  })