consul/ui/packages/consul-ui/vendor/init.js

43 lines
1.8 KiB
JavaScript

(function(doc, appName) {
const fs = new Map(
Object.entries(JSON.parse(doc.querySelector(`[data-${appName}-fs]`).textContent))
);
const appendScript = function(src) {
var $script = doc.createElement('script');
$script.src = src;
doc.body.appendChild($script);
};
// polyfills
if (!('TextDecoder' in window)) {
appendScript(fs.get(`${['text-encoding', 'encoding-indexes'].join('/')}.js`));
appendScript(fs.get(`${['text-encoding', 'encoding'].join('/')}.js`));
}
if (!(window.CSS && window.CSS.escape)) {
appendScript(fs.get(`${['css.escape', 'css.escape'].join('/')}.js`));
}
try {
const $appMeta = doc.querySelector(`[name="${appName}/config/environment"]`);
// pick out the operatorConfig from our application/json script tag
const operatorConfig = JSON.parse(doc.querySelector(`[data-${appName}-config]`).textContent);
// pick out the ember config from its meta tag
const emberConfig = JSON.parse(decodeURIComponent($appMeta.getAttribute('content')));
// rootURL is a special variable that requires settings before ember
// boots via ember's HTML metadata tag, the variable is equivalent to
// the -ui-content-path Consul flag (or `ui_config { content_path = ""}`)
// There will potentially be one or two more 'pre-init' variables that we need.
// Anything not 'pre-init' should use ui_config.
// Check the value to make sure its there and a string
const rootURL =
typeof operatorConfig.ContentPath !== 'string' ? '' : operatorConfig.ContentPath;
if (rootURL.length > 0) {
emberConfig.rootURL = rootURL;
}
$appMeta.setAttribute('content', encodeURIComponent(JSON.stringify(emberConfig)));
} catch (e) {
throw new Error(`Unable to parse ${appName} settings: ${e.message}`);
}
})(document, 'consul-ui');