38 lines
1.4 KiB
TypeScript
38 lines
1.4 KiB
TypeScript
// Set theme on page load
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// This is done outside the Angular app to avoid a flash of unthemed content before it loads
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const setTheme = () => {
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const getLegacyTheme = (): string | null => {
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// MANUAL-STATE-ACCESS: Calling global to get setting before migration
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// has had a chance to run, can be remove in the future.
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// Tracking Issue: https://bitwarden.atlassian.net/browse/PM-6676
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const globalState = window.localStorage.getItem("global");
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const parsedGlobalState = JSON.parse(globalState) as { theme?: string } | null;
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return parsedGlobalState ? parsedGlobalState.theme : null;
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};
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const defaultTheme = "light";
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const htmlEl = document.documentElement;
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let theme = defaultTheme;
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// First try the new state providers location, then the legacy location
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const themeFromState =
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window.localStorage.getItem("global_theming_selection") ?? getLegacyTheme();
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if (themeFromState) {
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if (themeFromState.indexOf("system") > -1) {
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theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light";
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} else if (themeFromState.indexOf("dark") > -1) {
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theme = "dark";
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}
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}
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if (!htmlEl.classList.contains("theme_" + theme)) {
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// The defaultTheme is also set in the html itself to make sure that some theming is always applied
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htmlEl.classList.remove("theme_" + defaultTheme);
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htmlEl.classList.add("theme_" + theme);
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}
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};
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setTheme();
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