npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions

bower_components/core-animated-pages/transitions/hero-transition.html

-<!--
-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
--->
-
-<link href="core-transition-pages.html" rel="import">
-
-<core-style id="hero-transition">
-  /* Hide heroes that are not currently transitioning */
-  polyfill-next-selector { content: ':host > [animate]:not(.core-selected) [hero]'; }
-  ::content > [animate]:not(.core-selected) /deep/ [hero] {
-    opacity: 0;
-  }
-
-  polyfill-next-selector { content: ':host > .core-selected[animate] [hero]'; }
-  ::content > .core-selected[animate] /deep/ [hero] {
-    opacity: 1;
-    z-index: 10000;
-  }
-
-  polyfill-next-selector { content: ':host > * [hero-p]'; }
-  ::content > * /deep/ [hero-p] {
-    -webkit-transition: box-shadow 100ms ease-out;
-    transition: box-shadow 100ms ease-out;
-  }
-
-  polyfill-next-selector { content: ':host > [animate] [hero-p]'; }
-  ::content > [animate] /deep/ [hero-p] {
-    box-shadow: none !important;
-  }
-</core-style>
-
-
-<!--
-
-`hero-transition` transforms two elements in different pages such that they appear
-to be shared across the pages.
-
-Example:
-
-    <core-animated-pages transition="hero-transition">
-      <section layout horizontal>
-        <div id="div1" flex></div>
-        <div id="div2" flex hero-id="shared" hero></div>
-      </section>
-      <section>
-      <section layout horizontal>
-        <div id="div3" flex hero-id="shared" hero></div>
-        <div id="div4" flex></div>
-      </section>
-      </section>
-    </core-animated-pages>
-
-In the above example, the elements `#div2` and `#div3` shares the same `hero-id`
-attribute and a single element appears to translate and scale smoothly between
-the two positions during a page transition.
-
-Both elements from the source and destination pages must share the same `hero-id`
-and must both contain the `hero` attribute to trigger the transition. The separate
-`hero` attribute allows you to use binding to configure the transition:
-
-Example:
-
-    <core-animated-pages transition="hero-transition">
-      <section layout horizontal>
-        <div id="div1" flex hero-id="shared" hero?="{{selected == 0}}"></div>
-        <div id="div2" flex hero-id="shared" hero?="{{selected == 1}}"></div>
-      </section>
-      <section>
-      <section layout horizontal>
-        <div id="div3" flex hero-id="shared" hero></div>
-      </section>
-      </section>
-    </core-animated-pages>
-
-In the above example, either `#div1` or `#div2` scales to `#div3` during a page transition,
-depending on the value of `selected`.
-
-Because it is common to share elements with different `border-radius` values, by default
-this transition will also animate the `border-radius` property.
-
-You can configure the duration of the hero transition with the global variable
-`CoreStyle.g.transitions.heroDuration`.
-
-@class hero-transition
-@extends core-transition-pages
-@status beta
-@homepage github.io
--->
-<polymer-element name="hero-transition" extends="core-transition-pages">
-<script>
-(function() {
-
-  var webkitStyles = '-webkit-transition' in document.documentElement.style
-  var TRANSITION_CSSNAME = webkitStyles ? '-webkit-transition' : 'transition';
-  var TRANSFORM_CSSNAME = webkitStyles ? '-webkit-transform' : 'transform';
-  var TRANSITION_NAME = webkitStyles ? 'webkitTransition' : 'transition';
-  var TRANSFORM_NAME = webkitStyles ? 'webkitTransform' : 'transform';
-
-  var hasShadowDOMPolyfill = window.ShadowDOMPolyfill;
-
-  Polymer({
-
-    go: function(scope, options) {
-      var props = [
-        'border-radius',
-        'width',
-        'height',
-        TRANSFORM_CSSNAME
-      ];
-
-      var duration = options && options.duration || 
-          (CoreStyle.g.transitions.heroDuration || 
-          CoreStyle.g.transitions.duration);
-
-      scope._heroes.forEach(function(h) {
-        var d = h.h0.hasAttribute('hero-delayed') ? CoreStyle.g.transitions.heroDelay : '';
-        var wt = [];
-        props.forEach(function(p) {
-          wt.push(p + ' ' + duration + ' ' + options.easing + ' ' + d);
-        });
-
-        h.h1.style[TRANSITION_NAME] = wt.join(', ');
-        h.h1.style.borderRadius = h.r1;
-        h.h1.style[TRANSFORM_NAME] = '';
-      });
-
-      this.super(arguments);
-
-      if (!scope._heroes.length) {
-        this.completed = true;
-      }
-    },
-
-    prepare: function(scope, options) {
-      this.super(arguments);
-      var src = options.src, dst = options.dst;
-
-      if (scope._heroes && scope._heroes.length) {
-        this.ensureComplete(scope);
-      } else {
-        scope._heroes = [];
-      }
-
-      // FIXME(yvonne): basic support for nested pages.
-      // Look for heroes in the light DOM and one level of shadow DOM of the src and dst,
-      // and also in src.selectedItem or dst.selectedItem, then transform the dst hero to src
-      var ss = '[hero]';
-      var h$ = this.findAllInShadows(src, ss);
-      if (src.selectedItem) {
-        hs$ = this.findAllInShadows(src.selectedItem, ss);
-        hsa$ = [];
-        // De-duplicate items
-        Array.prototype.forEach.call(hs$, function(hs) {
-          if (h$.indexOf(hs) === -1) {
-            hsa$.push(hs);
-          }
-        })
-        h$ = h$.concat(hsa$);
-      }
-
-      for (var i=0, h0; h0=h$[i]; i++) {
-        var v = h0.getAttribute('hero-id');
-        var ds = '[hero][hero-id="' + v + '"]';
-        var h1 = this.findInShadows(dst, ds);
-
-        if (!h1 && dst.selectedItem) {
-          h1 = this.findInShadows(dst.selectedItem, ds);
-        }
-
-        // console.log('src', src);
-        // console.log('dst', dst, dst.selectedItem);
-        // console.log(v, h0, h1);
-        if (v && h1) {
-          var c0 = getComputedStyle(h0);
-          var c1 = getComputedStyle(h1);
-          var h = {
-            h0: h0,
-            b0: h0.getBoundingClientRect(),
-            r0: c0.borderRadius,
-            h1: h1,
-            b1: h1.getBoundingClientRect(),
-            r1: c1.borderRadius
-          };
-
-          var dl = h.b0.left - h.b1.left;
-          var dt = h.b0.top - h.b1.top;
-          var sw = h.b0.width / h.b1.width;
-          var sh = h.b0.height / h.b1.height;
-
-          // h.scaley = h.h0.hasAttribute('scaley');
-          // if (!h.scaley && (sw !== 1 || sh !== 1)) {
-          //   sw = sh = 1;
-          //   h.h1.style.width = h.b0.width + 'px';
-          //   h.h1.style.height = h.b0.height + 'px';
-          // }
-
-          // Also animate the border-radius for the circle-to-square transition
-          if (h.r0 !== h.r1) {
-            h.h1.style.borderRadius = h.r0;
-          }
-
-          // console.log(h);
-
-          h.h1.style[TRANSFORM_NAME] = 'translate(' + dl + 'px,' + dt + 'px)' + ' scale(' + sw + ',' + sh + ')';
-          h.h1.style[TRANSFORM_NAME + 'Origin'] = '0 0';
-
-          scope._heroes.push(h);
-        }
-      }
-
-    },
-
-    // carefully look into ::shadow with polyfill specific hack
-    findInShadows: function(node, selector) {
-      return node.querySelector(selector) || (hasShadowDOMPolyfill ? 
-          Platform.queryAllShadows(node, selector) :
-          node.querySelector('::shadow ' + selector));
-    },
-
-    findAllInShadows: function(node, selector) {
-      if (hasShadowDOMPolyfill) {
-        var nodes = node.querySelectorAll(selector).array();
-        var shadowNodes = Platform.queryAllShadows(node, selector, true);
-        return nodes.concat(shadowNodes);
-      } else {
-        return node.querySelectorAll(selector).array().concat(node.shadowRoot ? node.shadowRoot.querySelectorAll(selector).array() : []);
-      }
-    },
-
-    ensureComplete: function(scope) {
-      this.super(arguments);
-      if (scope._heroes) {
-        scope._heroes.forEach(function(h) {
-          h.h1.style[TRANSITION_NAME] = '';
-          h.h1.style[TRANSFORM_NAME] = '';
-        });
-        scope._heroes = [];
-      }
-    },
-
-    complete: function(scope, e) {
-      // if (e.propertyName === TRANSFORM_CSSNAME) {
-        var done = false;
-        scope._heroes.forEach(function(h) {
-          if (h.h1 === e.path[0]) {
-            done = true;
-          }
-        });
-
-        if (done) {
-          this.super(arguments);
-        }
-      // }
-    }
-
-  });
-
-})();
-</script>
-</polymer-element>
-
-<hero-transition id="hero-transition"></hero-transition>