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workaround for a race condition between dojo.parse() and tt-rss loading proper day/night css on startup because of firefox async CSS loader

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This commit is contained in:
Andrew Dolgov
2019-12-15 11:57:26 +03:00
parent 0d6add5d7f
commit 07f4878d59
5 changed files with 92 additions and 52 deletions
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44
js/AppBase.js
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@@ -9,7 +9,6 @@ define(["dojo/_base/declare"], function (declare) {
hotkey_prefix_timeout: 0,
constructor: function() {
window.onerror = this.Error.onWindowError;
this.setupNightModeDetection();
},
getInitParam: function(k) {
return this._initParams[k];
@@ -17,30 +16,47 @@ define(["dojo/_base/declare"], function (declare) {
setInitParam: function(k, v) {
this._initParams[k] = v;
},
nightModeChanged: function(is_night) {
nightModeChanged: function(is_night, link) {
console.log("night mode changed to", is_night);
const link = $("theme_css");
if (link) {
if (link.getAttribute("data-orig-href").indexOf("css/default.css") !== -1) {
const css_override = is_night ? "themes/night.css" : "css/default.css";
link.setAttribute("href", css_override + "?" + Date.now());
}
const css_override = is_night ? "themes/night.css" : "css/default.css";
link.setAttribute("href", css_override + "?" + Date.now());
}
},
setupNightModeDetection: function() {
if (window.matchMedia) {
setupNightModeDetection: function(callback) {
if (!$("theme_css")) {
const mql = window.matchMedia('(prefers-color-scheme: dark)');
try {
mql.addEventListener("change", () => {
this.nightModeChanged(mql.matches);
this.nightModeChanged(mql.matches, $("theme_auto_css"));
});
} catch (e) {}
} catch (e) {
console.warn("exception while trying to set MQL event listener");
}
this.nightModeChanged(mql.matches);
const link = new Element("link", {
rel: "stylesheet",
id: "theme_auto_css"
});
if (callback) {
link.onload = function () {
document.querySelector("body").removeClassName("css_loading");
callback();
};
link.onerror = function(event) {
alert("Fatal error while loading application stylesheet: " + link.getAttribute("href"));
}
}
this.nightModeChanged(mql.matches, link);
document.querySelector("head").appendChild(link);
} else {
if (callback) callback();
}
},
enableCsrfSupport: function() {