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clone global stylesheet elements into root for shadowdom support #223

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Merged
e111077 merged 2 commits into from
Nov 28, 2018
Merged

clone global stylesheet elements into root for shadowdom support #223

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892aba1
clone stylesheets into root
Nov 28, 2018
84116c5
move style localization to function and two loops and only once
Nov 28, 2018
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28 changes: 28 additions & 0 deletions google-chart.html
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,7 @@
-->
<dom-module id="google-chart">
<template>
<div id="styles"></div>
<style include="google-chart-styles"></style>
<google-chart-loader id="loader" type="[[type]]"></google-chart-loader>
<div id="chartdiv"></div>
Expand Down Expand Up @@ -310,6 +311,33 @@
_typeChanged: function() {
this.$.loader.create(this.type, this.$.chartdiv)
.then(function(chart) {

// get all gchart stylesheets
var stylesheets =
Polymer.dom(document.head)
.querySelectorAll('link[rel="stylesheet"][type="text/css"]');
var gchartStylesheets = Array.from(stylesheets).filter(
function(element) {
return element.id.indexOf('load-css-') == 0;
});

// clone necessary attributes
var clonedSheets = gchartStylesheets.map(
function(stylesheet) {
var link = document.createElement('link');
link.setAttribute('rel', 'stylesheet');
link.setAttribute('type', 'text/css');
link.setAttribute('href', stylesheet.getAttribute('href'));
return link;
}
);

// append them to this local dom (for sdom support)
clonedSheets.forEach(
function(stylesheet) {
Polymer.dom(this.$.styles).appendChild(stylesheet);
}.bind(this));

var loader = this.$.loader;
Object.keys(this.events.concat(['select', 'ready'])
.reduce(function(set, eventName) {
Expand Down