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Dedup theming code 

Following on from https://github.com/matrix-org/matrix-react-sdk/pull/3637
this removes the code dealing with themes in vector/index.js and uses the
code from react-sdk. The two did almost exactly the same thing but in
subtley different ways.

This code can be incredibly subtle though, so doing this a separate
PR.
This commit is contained in:
David Baker 2019-11-20 15:42:15 +00:00
parent 7294bec1c8
commit e34c46c893
1 changed files with 2 additions and 49 deletions
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51
src/vector/index.js
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@ -57,7 +57,7 @@ import WebPlatform from './platform/WebPlatform';
import MatrixClientPeg from 'matrix-react-sdk/lib/MatrixClientPeg';
import SettingsStore from "matrix-react-sdk/lib/settings/SettingsStore";
import SdkConfig from "matrix-react-sdk/lib/SdkConfig";
import {getBaseTheme, setTheme, ThemeWatcher} from "matrix-react-sdk/lib/theme";
import {setTheme} from "matrix-react-sdk/lib/theme";
import Olm from 'olm';
@ -255,54 +255,7 @@ async function loadApp() {
}
// as quickly as we possibly can, set a default theme...
// we do this by checking to see if the theme's "base" has loaded first so we can
// safely rely on the assets.
let a;
const themeWatcher = new ThemeWatcher();
const theme = themeWatcher.getEffectiveTheme();
const baseTheme = getBaseTheme(theme);
for (let i = 0; (a = document.getElementsByTagName("link")[i]); i++) {
const href = a.getAttribute("href");
if (!href) continue;
// shouldn't we be using the 'title' tag rather than the href?
const match = href.match(/^bundles\/.*\/theme-(.*)\.css$/);
if (match) {
if (match[1] === baseTheme) {
// remove the disabled flag off the stylesheet
// Firefox requires setting the attribute to false, so do
// that instead of removing it. Related:
// https://bugzilla.mozilla.org/show_bug.cgi?id=1281135
a.disabled = false;
// in case the Tinter.tint() in MatrixChat fires before the
// CSS has actually loaded (which in practice happens)...
// This if fixes setTheme to not fire on Firefox
// in case it is the first time loading Riot.
// `InstallTrigger` is a Object which only exists on Firefox
// (it is used for their Plugins) and can be used as a
// feature check.
// Firefox loads css always before js. This is why we dont use
// onload or it's EventListener as those will never trigger.
if (typeof InstallTrigger !== 'undefined') {
setTheme(theme);
} else {
// FIXME: we should probably block loading the app or even
// showing a spinner until the theme is loaded, to avoid
// flashes of unstyled content.
a.onload = () => {
setTheme(theme);
};
}
} else {
// Firefox requires this to not be done via `setAttribute`
// or via HTML.
// https://bugzilla.mozilla.org/show_bug.cgi?id=1281135
a.disabled = true;
}
}
}
await setTheme();
// Now that we've loaded the theme (CSS), display the config syntax error if needed.
if (configSyntaxError) {