npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions

polymer_0.5.0/bower_components/paper-tabs/paper-tabs.html

Index: polymer_0.5.0/bower_components/paper-tabs/paper-tabs.html
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+<!--
+Copyright (c) 2014 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
+-->
+
+<!--
+`paper-tabs` is a `core-selector` styled to look like tabs. Tabs make 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 `core-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>
+  
+    <core-pages selected="{{selected}}">
+      <div>Page 1</div>
+      <div>Page 2</div>
+      <div>Page 3</div>
+    </core-pages>
+    
+`paper-tabs` adapt to mobile/narrow layout when there is a `core-narrow` class set
+on itself or any of its ancestors.
+
+To use links in tabs, add `link` attribute to `paper-tabs` and put an `<a>`
+element in `paper-tab`.
+
+Example:
+
+    <paper-tabs selected="0" link>
+      <paper-tab>
+        <a href="#link1" horizontal center-center layout>TAB ONE</a>
+      </paper-tab>
+      <paper-tab>
+        <a href="#link2" horizontal center-center layout>TAB TWO</a>
+      </paper-tab>
+      <paper-tab>
+        <a href="#link3" horizontal center-center layout>TAB THREE</a>
+      </paper-tab>
+    </paper-tabs>
+
+Styling tabs:
+
+To change the sliding bar color:
+
+    paper-tabs.pink::shadow #selectionBar {
+      background-color: #ff4081;
+    }
+    
+To change the ink ripple color:
+
+    paper-tabs.pink paper-tab::shadow #ink {
+      color: #ff4081;
+    }
+
+@group Paper Elements
+@element paper-tabs
+@extends core-selector
+@homepage github.io
+-->
+
+<link rel="import" href="../core-selector/core-selector.html">
+<link rel="import" href="../paper-icon-button/paper-icon-button.html">
+<link rel="import" href="../core-resizable/core-resizable.html">
+<link rel="import" href="paper-tab.html">
+
+<polymer-element name="paper-tabs" extends="core-selector" attributes="noink nobar noslide scrollable hideScrollButton" role="tablist" horizontal center layout>
+<template>
+
+  <link rel="stylesheet" href="paper-tabs.css">
+  
+  <div class="scroll-button" hidden?="{{!scrollable || hideScrollButton}}">
+    <paper-icon-button icon="chevron-left" class="{{ {hidden: leftHidden} | tokenList }}" on-down="{{holdLeft}}" on-up="{{releaseHold}}"></paper-icon-button>
+  </div>
+  
+  <div id="tabsContainer" class="{{ {scrollable: scrollable} | tokenList }}" flex on-scroll="{{scroll}}" on-trackstart="{{trackStart}}">
+  
+    <div id="tabsContent" horizontal layout?="{{!scrollable}}">
+      <shadow></shadow>
+      <div id="selectionBar" hidden?="{{nobar}}" on-transitionend="{{barTransitionEnd}}"></div>
+    </div>
+    
+  </div>
+  
+  <div class="scroll-button" hidden?="{{!scrollable || hideScrollButton}}">
+    <paper-icon-button icon="chevron-right" class="{{ {hidden: rightHidden} | tokenList }}" on-down="{{holdRight}}" on-up="{{releaseHold}}"></paper-icon-button>
+  </div>
+    
+</template>
+<script>
+
+  Polymer(Polymer.mixin({
+    
+    /**
+     * If true, ink ripple effect is disabled.
+     *
+     * @attribute noink
+     * @type boolean
+     * @default false
+     */
+    noink: false,
+    
+    /**
+     * If true, the bottom bar to indicate the selected tab will not be shown.
+     *
+     * @attribute nobar
+     * @type boolean
+     * @default false
+     */
+    nobar: false,
+    
+    /**
+     * If true, the slide effect for the bottom bar is disabled.
+     *
+     * @attribute noslide
+     * @type boolean
+     * @default false
+     */
+    noslide: false,
+    
+    /**
+     * If true, tabs are scrollable and the tab width is based on the label width.
+     *
+     * @attribute scrollable
+     * @type boolean
+     * @default false
+     */
+    scrollable: false,
+    
+    /**
+     * If true, dragging on the tabs to scroll is disabled.
+     *
+     * @attribute disableDrag
+     * @type boolean
+     * @default false
+     */
+    disableDrag: false,
+    
+    /**
+     * If true, scroll buttons (left/right arrow) will be hidden for scrollable tabs.
+     *
+     * @attribute hideScrollButton
+     * @type boolean
+     * @default false
+     */
+    hideScrollButton: false,
+
+    eventDelegates: {
+      'core-resize': 'resizeHandler'
+    },
+    
+    activateEvent: 'tap',
+    
+    step: 10,
+    
+    holdDelay: 10,
+    
+    ready: function() {
+      this.super();
+      this._trackxHandler = this.trackx.bind(this);
+      Polymer.addEventListener(this.$.tabsContainer, 'trackx', this._trackxHandler);
+      this._tabsObserver = new MutationObserver(this.updateBar.bind(this));
+    },
+    
+    domReady: function() {
+      this.async('resizeHandler');
+      this._tabsObserver.observe(this, {childList: true, subtree: true, characterData: true});
+    },
+
+    attached: function() {
+      this.resizableAttachedHandler();
+    },
+    
+    detached: function() {
+      Polymer.removeEventListener(this.$.tabsContainer, 'trackx', this._trackxHandler);
+      this._tabsObserver.disconnect();
+      this.resizableDetachedHandler();
+    },
+    
+    trackStart: function(e) {
+      if (!this.scrollable || this.disableDrag) {
+        return;
+      }
+      var t = e.target;
+      if (t && t.cancelRipple) {
+        t.cancelRipple();
+      }
+      this._startx = this.$.tabsContainer.scrollLeft;
+      e.preventTap();
+    },
+    
+    trackx: function(e) {
+      if (!this.scrollable || this.disableDrag) {
+        return;
+      }
+      this.$.tabsContainer.scrollLeft = this._startx - e.dx;
+    },
+    
+    resizeHandler: function() {
+      this.scroll();
+      this.updateBar();
+    },
+    
+    scroll: function() {
+      if (!this.scrollable) {
+        return;
+      }
+      var tc = this.$.tabsContainer;
+      var l = tc.scrollLeft;
+      this.leftHidden = l === 0;
+      this.rightHidden = l === (tc.scrollWidth - tc.clientWidth);
+    },
+    
+    holdLeft: function() {
+      this.holdJob = setInterval(this.scrollToLeft.bind(this), this.holdDelay);
+    },
+    
+    holdRight: function() {
+      this.holdJob = setInterval(this.scrollToRight.bind(this), this.holdDelay);
+    },
+    
+    releaseHold: function() {
+      clearInterval(this.holdJob);
+      this.holdJob = null;
+    },
+    
+    scrollToLeft: function() {
+      this.$.tabsContainer.scrollLeft -= this.step;
+    },
+    
+    scrollToRight: function() {
+      this.$.tabsContainer.scrollLeft += this.step;
+    },
+    
+    /**
+     * Invoke this to update the size and position of the bottom bar.  Usually
+     * you only need to call this if the `paper-tabs` is initially hidden and
+     * later becomes visible.
+     *
+     * @method updateBar
+     */
+    updateBar: function() {
+      this.async('selectedItemChanged');
+    },
+    
+    selectedItemChanged: function(old) {
+      var oldIndex = this.selectedIndex;
+      this.super(arguments);
+      var s = this.$.selectionBar.style;
+      
+      if (!this.selectedItem) {
+        s.width = 0;
+        s.left = 0;
+        return;
+      } 
+      
+      var r = this.$.tabsContent.getBoundingClientRect();
+      this._w = r.width;
+      this._l = r.left;
+      
+      r = this.selectedItem.getBoundingClientRect();
+      this._sw = r.width;
+      this._sl = r.left;
+      this._sOffsetLeft = this._sl - this._l; 
+      
+      if (this.noslide || old == null) {
+        this.positionBarForSelected();
+        return;
+      }
+      
+      var oldRect = old.getBoundingClientRect();
+      
+      var m = 5;
+      this.$.selectionBar.classList.add('expand');
+      if (oldIndex < this.selectedIndex) {
+        s.width = this.calcPercent(this._sl + this._sw - oldRect.left) - m + '%';
+        this._transitionCounter = 1;
+      } else {
+        s.width = this.calcPercent(oldRect.left + oldRect.width - this._sl) - m + '%';
+        s.left = this.calcPercent(this._sOffsetLeft) + m + '%';
+        this._transitionCounter = 2;
+      }
+      if (this.scrollable) {
+        this.scrollToSelectedIfNeeded();
+      }
+    },
+    
+    scrollToSelectedIfNeeded: function() {
+      var scrollLeft = this.$.tabsContainer.scrollLeft;
+      // scroll to selected if needed
+      if (this._sOffsetLeft + this._sw < scrollLeft || 
+          this._sOffsetLeft - scrollLeft > this.$.tabsContainer.offsetWidth) {
+        this.$.tabsContainer.scrollLeft = this._sOffsetLeft;
+      }
+    },
+    
+    positionBarForSelected: function() {
+      var s = this.$.selectionBar.style;
+      s.width = this.calcPercent(this._sw) + '%';
+      s.left = this.calcPercent(this._sOffsetLeft) + '%';
+    },
+    
+    calcPercent: function(w) {
+      return 100 * w / this._w;
+    },
+    
+    barTransitionEnd: function(e) {
+      this._transitionCounter--;
+      var cl = this.$.selectionBar.classList;
+      if (cl.contains('expand') && !this._transitionCounter) {
+        cl.remove('expand');
+        cl.add('contract');
+        this.positionBarForSelected();
+      } else if (cl.contains('contract')) {
+        cl.remove('contract');
+      }
+    }
+    
+  }, Polymer.CoreResizable));
+  
+</script>
+</polymer-element>