Remove third_party/polymer from .gitignore

third_party/polymer/v1_0/components/paper-tabs/paper-tabs.html

-<!--
-@license
-Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
-This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
-The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
-The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
-Code distributed by Google as part of the polymer project is also
-subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
--->
-
-<link rel="import" href="../polymer/polymer.html">
-<link rel="import" href="../iron-flex-layout/iron-flex-layout.html">
-<link rel="import" href="../iron-flex-layout/classes/iron-flex-layout.html">
-<link rel="import" href="../iron-resizable-behavior/iron-resizable-behavior.html">
-<link rel="import" href="../iron-menu-behavior/iron-menubar-behavior.html">
-<link rel="import" href="../iron-icon/iron-icon.html">
-<link rel="import" href="../paper-icon-button/paper-icon-button.html">
-<link rel="import" href="../paper-styles/color.html">
-<link rel="import" href="paper-tabs-icons.html">
-<link rel="import" href="paper-tab.html">
-
-<!--
-`paper-tabs` makes it easy to explore and switch between different views or functional aspects of
-an app, or to browse categorized data sets.
-
-Use `selected` property to get or set the selected tab.
-
-Example:
-
-    <paper-tabs selected="0">
-      <paper-tab>TAB 1</paper-tab>
-      <paper-tab>TAB 2</paper-tab>
-      <paper-tab>TAB 3</paper-tab>
-    </paper-tabs>
-
-See <a href="#paper-tab">paper-tab</a> for more information about
-`paper-tab`.
-
-A common usage for `paper-tabs` is to use it along with `iron-pages` to switch
-between different views.
-
-    <paper-tabs selected="{{selected}}">
-      <paper-tab>Tab 1</paper-tab>
-      <paper-tab>Tab 2</paper-tab>
-      <paper-tab>Tab 3</paper-tab>
-    </paper-tabs>
-
-    <iron-pages selected="{{selected}}">
-      <div>Page 1</div>
-      <div>Page 2</div>
-      <div>Page 3</div>
-    </iron-pages>
-
-
-To use links in tabs, add `link` attribute to `paper-tab` and put an `<a>`
-element in `paper-tab`.
-
-Example:
-
-    <paper-tabs selected="0">
-      <paper-tab link>
-        <a href="#link1" class="horizontal center-center layout">TAB ONE</a>
-      </paper-tab>
-      <paper-tab link>
-        <a href="#link2" class="horizontal center-center layout">TAB TWO</a>
-      </paper-tab>
-      <paper-tab link>
-        <a href="#link3" class="horizontal center-center layout">TAB THREE</a>
-      </paper-tab>
-    </paper-tabs>
-
-### Styling
-
-The following custom properties and mixins are available for styling:
-
-Custom property | Description | Default
-----------------|-------------|----------
-`--paper-tabs-selection-bar-color` | Color for the selection bar | `--paper-yellow-a100`
-`--paper-tabs` | Mixin applied to the tabs | `{}`
-
-@hero hero.svg
-@demo demo/index.html
--->
-
-<dom-module id="paper-tabs">
-
-  <style>
-
-    :host {
-      @apply(--layout);
-      @apply(--layout-center);
-
-      height: 48px;
-      font-size: 14px;
-      font-weight: 500;
-      overflow: hidden;
-      -webkit-user-select: none;
-      -moz-user-select: none;
-      -ms-user-select: none;
-      user-select: none;
-      -webkit-tap-highlight-color: rgba(0,0,0,0);
-
-      @apply(--paper-tabs);
-    }
-
-    #tabsContainer {
-      position: relative;
-      height: 100%;
-      white-space: nowrap;
-      overflow: hidden;
-    }
-
-    #tabsContent {
-      height: 100%;
-    }
-
-    #tabsContent.scrollable {
-      position: absolute;
-      white-space: nowrap;
-    }
-
-    .hidden {
-      display: none;
-    }
-
-    .not-visible {
-      opacity: 0;
-    }
-
-    paper-icon-button {
-      width: 24px;
-      padding: 16px;
-    }
-
-    #selectionBar {
-      position: absolute;
-      height: 2px;
-      bottom: 0;
-      left: 0;
-      right: 0;
-      background-color: var(--paper-tabs-selection-bar-color, --paper-yellow-a100);
-      -webkit-transform-origin: left center;
-      transform-origin: left center;
-      -webkit-transform: scale(0);
-      transform: scale(0);
-      transition: -webkit-transform;
-      transition: transform;
-
-      @apply(--paper-tabs-selection-bar);
-    }
-
-    #selectionBar.align-bottom {
-      top: 0;
-      bottom: auto;
-    }
-
-    #selectionBar.expand {
-      transition-duration: 0.15s;
-      transition-timing-function: cubic-bezier(0.4, 0.0, 1, 1);
-    }
-
-    #selectionBar.contract {
-      transition-duration: 0.18s;
-      transition-timing-function: cubic-bezier(0.0, 0.0, 0.2, 1);
-    }
-
-    #tabsContent > ::content > *:not(#selectionBar) {
-      height: 100%;
-    }
-
-  </style>
-
-  <template>
-
-    <paper-icon-button icon="paper-tabs:chevron-left" class$="[[_computeScrollButtonClass(_leftHidden, scrollable, hideScrollButtons)]]" on-up="_onScrollButtonUp" on-down="_onLeftScrollButtonDown"></paper-icon-button>
-
-    <div id="tabsContainer" class="flex" on-scroll="_scroll">
-
-      <div id="tabsContent" class$="[[_computeTabsContentClass(scrollable)]]">
-
-        <content select="*"></content>
-
-        <div id="selectionBar" class$="[[_computeSelectionBarClass(noBar, alignBottom)]]"
-            on-transitionend="_onBarTransitionEnd"></div>
-
-      </div>
-
-    </div>
-
-    <paper-icon-button icon="paper-tabs:chevron-right" class$="[[_computeScrollButtonClass(_rightHidden, scrollable, hideScrollButtons)]]" on-up="_onScrollButtonUp" on-down="_onRightScrollButtonDown"></paper-icon-button>
-
-  </template>
-
-</dom-module>
-
-<script>
-
-  Polymer({
-
-    is: 'paper-tabs',
-
-    behaviors: [
-      Polymer.IronResizableBehavior,
-      Polymer.IronMenubarBehavior
-    ],
-
-    properties: {
-
-      /**
-       * If true, ink ripple effect is disabled.
-       */
-      noink: {
-        type: Boolean,
-        value: false
-      },
-
-      /**
-       * If true, the bottom bar to indicate the selected tab will not be shown.
-       */
-      noBar: {
-        type: Boolean,
-        value: false
-      },
-
-      /**
-       * If true, the slide effect for the bottom bar is disabled.
-       */
-      noSlide: {
-        type: Boolean,
-        value: false
-      },
-
-      /**
-       * If true, tabs are scrollable and the tab width is based on the label width.
-       */
-      scrollable: {
-        type: Boolean,
-        value: false
-      },
-
-      /**
-       * If true, dragging on the tabs to scroll is disabled.
-       */
-      disableDrag: {
-        type: Boolean,
-        value: false
-      },
-
-      /**
-       * If true, scroll buttons (left/right arrow) will be hidden for scrollable tabs.
-       */
-      hideScrollButtons: {
-        type: Boolean,
-        value: false
-      },
-
-      /**
-       * If true, the tabs are aligned to bottom (the selection bar appears at the top).
-       */
-      alignBottom: {
-        type: Boolean,
-        value: false
-      },
-
-      /**
-       * Gets or sets the selected element. The default is to use the index of the item.
-       */
-      selected: {
-        type: String,
-        notify: true
-      },
-
-      selectable: {
-        type: String,
-        value: 'paper-tab'
-      },
-
-      _step: {
-        type: Number,
-        value: 10
-      },
-
-      _holdDelay: {
-        type: Number,
-        value: 1
-      },
-
-      _leftHidden: {
-        type: Boolean,
-        value: false
-      },
-
-      _rightHidden: {
-        type: Boolean,
-        value: false
-      },
-
-      _previousTab: {
-        type: Object
-      }
-    },
-
-    hostAttributes: {
-      role: 'tablist'
-    },
-
-    listeners: {
-      'iron-resize': '_onResize',
-      'iron-select': '_onIronSelect',
-      'iron-deselect': '_onIronDeselect'
-    },
-
-    _computeScrollButtonClass: function(hideThisButton, scrollable, hideScrollButtons) {
-      if (!scrollable || hideScrollButtons) {
-        return 'hidden';
-      }
-
-      if (hideThisButton) {
-        return 'not-visible';
-      }
-
-      return '';
-    },
-
-    _computeTabsContentClass: function(scrollable) {
-      return scrollable ? 'scrollable' : 'horizontal layout';
-    },
-
-    _computeSelectionBarClass: function(noBar, alignBottom) {
-      if (noBar) {
-        return 'hidden';
-      } else if (alignBottom) {
-        return 'align-bottom';
-      }
-    },
-
-    // TODO(cdata): Add `track` response back in when gesture lands.
-
-    _onResize: function() {
-      this.debounce('_onResize', function() {
-        this._scroll();
-        this._tabChanged(this.selectedItem);
-      }, 10);
-    },
-
-    _onIronSelect: function(event) {
-      this._tabChanged(event.detail.item, this._previousTab);
-      this._previousTab = event.detail.item;
-      this.cancelDebouncer('tab-changed');
-    },
-
-    _onIronDeselect: function(event) {
-      this.debounce('tab-changed', function() {
-        this._tabChanged(null, this._previousTab);
-      // See polymer/polymer#1305
-      }, 1);
-    },
-
-    get _tabContainerScrollSize () {
-      return Math.max(
-        0,
-        this.$.tabsContainer.scrollWidth -
-          this.$.tabsContainer.offsetWidth
-      );
-    },
-
-    _scroll: function() {
-      var scrollLeft;
-
-      if (!this.scrollable) {
-        return;
-      }
-
-      scrollLeft = this.$.tabsContainer.scrollLeft;
-
-      this._leftHidden = scrollLeft === 0;
-      this._rightHidden = scrollLeft === this._tabContainerScrollSize;
-    },
-
-    _onLeftScrollButtonDown: function() {
-      this._holdJob = setInterval(this._scrollToLeft.bind(this), this._holdDelay);
-    },
-
-    _onRightScrollButtonDown: function() {
-      this._holdJob = setInterval(this._scrollToRight.bind(this), this._holdDelay);
-    },
-
-    _onScrollButtonUp: function() {
-      clearInterval(this._holdJob);
-      this._holdJob = null;
-    },
-
-    _scrollToLeft: function() {
-      this.$.tabsContainer.scrollLeft -= this._step;
-    },
-
-    _scrollToRight: function() {
-      this.$.tabsContainer.scrollLeft += this._step;
-    },
-
-    _tabChanged: function(tab, old) {
-      if (!tab) {
-        this._positionBar(0, 0);
-        return;
-      }
-
-      var r = this.$.tabsContent.getBoundingClientRect();
-      var w = r.width;
-      var tabRect = tab.getBoundingClientRect();
-      var tabOffsetLeft = tabRect.left - r.left;
-
-      this._pos = {
-        width: this._calcPercent(tabRect.width, w),
-        left: this._calcPercent(tabOffsetLeft, w)
-      };
-
-      if (this.noSlide || old == null) {
-        // position bar directly without animation
-        this._positionBar(this._pos.width, this._pos.left);
-        return;
-      }
-
-      var oldRect = old.getBoundingClientRect();
-      var oldIndex = this.items.indexOf(old);
-      var index = this.items.indexOf(tab);
-      var m = 5;
-
-      // bar animation: expand
-      this.$.selectionBar.classList.add('expand');
-
-      if (oldIndex < index) {
-        this._positionBar(this._calcPercent(tabRect.left + tabRect.width - oldRect.left, w) - m,
-            this._left);
-      } else {
-        this._positionBar(this._calcPercent(oldRect.left + oldRect.width - tabRect.left, w) - m,
-            this._calcPercent(tabOffsetLeft, w) + m);
-      }
-
-      if (this.scrollable) {
-        this._scrollToSelectedIfNeeded(tabRect.width, tabOffsetLeft);
-      }
-    },
-
-    _scrollToSelectedIfNeeded: function(tabWidth, tabOffsetLeft) {
-      var l = tabOffsetLeft - this.$.tabsContainer.scrollLeft;
-      if (l < 0) {
-        this.$.tabsContainer.scrollLeft += l;
-      } else {
-        l += (tabWidth - this.$.tabsContainer.offsetWidth);
-        if (l > 0) {
-          this.$.tabsContainer.scrollLeft += l;
-        }
-      }
-    },
-
-    _calcPercent: function(w, w0) {
-      return 100 * w / w0;
-    },
-
-    _positionBar: function(width, left) {
-      width = width || 0;
-      left = left || 0;
-
-      this._width = width;
-      this._left = left;
-      this.transform(
-          'translate3d(' + left + '%, 0, 0) scaleX(' + (width / 100) + ')',
-          this.$.selectionBar);
-    },
-
-    _onBarTransitionEnd: function(e) {
-      var cl = this.$.selectionBar.classList;
-      // bar animation: expand -> contract
-      if (cl.contains('expand')) {
-        cl.remove('expand');
-        cl.add('contract');
-        this._positionBar(this._pos.width, this._pos.left);
-      // bar animation done
-      } else if (cl.contains('contract')) {
-        cl.remove('contract');
-      }
-    }
-
-  });
-
-</script>