b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
62 lines
1.9 KiB
JavaScript
Executable file
62 lines
1.9 KiB
JavaScript
Executable file
/* exported HtmlImports */
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'use strict';
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/**
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* This file is included when we encounter lazy loaded nodes
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* in DEBUG mode.
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*/
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var HtmlImports = {
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/**
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* Populates all custom component nodes
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* Populates nodes with comments, which are then
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* parsed by lazy_loader
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*/
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populate: function(callback) {
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var imports = document.querySelectorAll('link[rel="import"]');
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if (!imports.length) {
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return;
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}
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var pending = imports.length;
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Array.prototype.forEach.call(imports, function perImport(eachImport) {
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this.getImportContent(eachImport.href, function gotContent(content) {
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// Mapping of all custom element templates
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var elementTemplates = {};
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var elementRoot = document.createElement('div');
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elementRoot.innerHTML = content;
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var elements = elementRoot.querySelectorAll('element');
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for (var i = 0, iLen = elements.length; i < iLen; i++) {
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var element = elements[i];
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var template = element.querySelector('template');
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elementTemplates[element.getAttribute('name')] = template.innerHTML;
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}
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var replaceableElements = document.querySelectorAll('*[is]');
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Array.prototype.forEach.call(replaceableElements, function _each(el) {
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if (elementTemplates[el.getAttribute('is')]) {
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el.innerHTML = elementTemplates[el.getAttribute('is')];
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el.removeAttribute('is');
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}
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});
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if (!(--pending)) {
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callback();
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}
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});
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}, this);
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},
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getImportContent: function(path, callback) {
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// bail out if the imported resource isn't in the same origin
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var parsedURL = new URL(path, location.href);
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if (parsedURL.origin !== location.origin) { return; }
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var xhr = new XMLHttpRequest();
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xhr.onload = function(o) {
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callback(xhr.responseText);
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};
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xhr.open('GET', path, true);
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xhr.send();
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}
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};
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