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fix(demos): fix theme switcher in local demo server #33167

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fix(demos): fix theme switcher in local demo server #33167

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75 changes: 73 additions & 2 deletions apps/demos/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -113,10 +113,36 @@
document.cookie = `dx-demo-theme=${theme};path=/;expires=${now.toUTCString()}`;
};

const applyThemeToFrame = () => {
const frame = document.getElementById("frame");
try {
const iframeDoc = frame.contentDocument || frame.contentWindow.document;
const links = iframeDoc.querySelectorAll('link[rel="stylesheet"]');
for (const link of links) {
if (/\/css\/dx\..*\.css/.test(link.getAttribute("href"))) {
link.href = link.href.replace(/dx\.[^/]+$/, theme);
}
}
} catch (_) { /* cross-origin or not loaded yet */ }
};

const applyThemeToHost = () => {
const link = document.querySelector('head link[rel="stylesheet"]');
if (link) {
link.href = `node_modules/devextreme-dist/css/${theme}`;
}
};

const updateDemo = () => {
setThemeCookie();
applyThemeToHost();

const frame = document.getElementById("frame");
const demoPath = processLink();
document.getElementById("demolink").href = demoPath;

document.getElementById("frame").src = document.getElementById("demolink").href = processLink();
frame.onload = applyThemeToFrame;
frame.src = demoPath;
};

const processDataSourceItem = (item) => {
Expand Down Expand Up @@ -238,7 +264,52 @@
location: "after",
widget: "dxSelectBox",
options: {
dataSource: "/themes",
dataSource: [
"dx.light.css",
"dx.light.compact.css",
"dx.dark.css",
"dx.dark.compact.css",
"dx.carmine.css",
"dx.carmine.compact.css",
"dx.contrast.css",
"dx.contrast.compact.css",
"dx.darkmoon.css",
"dx.darkmoon.compact.css",
"dx.darkviolet.css",
"dx.darkviolet.compact.css",
"dx.greenmist.css",
"dx.greenmist.compact.css",
"dx.softblue.css",
"dx.softblue.compact.css",
"dx.fluent.blue.light.css",
"dx.fluent.blue.light.compact.css",
"dx.fluent.blue.dark.css",
"dx.fluent.blue.dark.compact.css",
"dx.fluent.saas.light.css",
"dx.fluent.saas.light.compact.css",
"dx.fluent.saas.dark.css",
"dx.fluent.saas.dark.compact.css",
"dx.material.blue.light.css",
"dx.material.blue.light.compact.css",
"dx.material.blue.dark.css",
"dx.material.blue.dark.compact.css",
"dx.material.lime.light.css",
"dx.material.lime.light.compact.css",
"dx.material.lime.dark.css",
"dx.material.lime.dark.compact.css",
"dx.material.orange.light.css",
"dx.material.orange.light.compact.css",
"dx.material.orange.dark.css",
"dx.material.orange.dark.compact.css",
"dx.material.purple.light.css",
"dx.material.purple.light.compact.css",
"dx.material.purple.dark.css",
"dx.material.purple.dark.compact.css",
"dx.material.teal.light.css",
"dx.material.teal.light.compact.css",
"dx.material.teal.dark.css",
"dx.material.teal.dark.compact.css",
],
value: theme,
width: 250,
searchEnabled: true,
Expand Down
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