I want to be able to switch themes using a element. The themes are stored in different.css files and by picking a different <option>
, I can in turn pick a different theme. However, switching pages switches themes back to whatever I have currently written into my actual template. Here is my.js file:
$(function() {
var theme = $("#theme");
var getTheme = localStorage.getItem("theme");
$("#select option:selected").each(function() { /* Switch on-change function */
if (getTheme == $(this).data("theme")) {
theme.attr("href", getTheme); /* Set the theme of the page to whatever theme applies to this option */
console.log($(this).data("theme"));
}
else {
theme.attr("href", $(this).data("theme"));
localStorage.setItem("theme", $(this).data("theme")); /* Store the choice into local storage; should persist upon page reload */
console.log($(this).data("theme"));
}
});
});
And here is my template:
<div style="text-align: center">
<select class="form-control" name="select" id="select">
<option selected value="original" data-theme="/static/styles.css">Original</option>
<option value="darkmode" data-theme="/static/stylesdark.css">Dark Mode</option>
<option value="cybermode" data-theme="/static/stylescyber.css">Cyber Mode</option>
<option value="fire" data-theme="/static/stylesfire.css">Fire & Brimstone</option>
</select>
</div>
I figure my error has something to do with how my use of localStorage is being handled, but I'm not sure how.
You code seems [for me] very complicated
just do
<div style="text-align: center">
<select class="form-control" name="select" id="select">
<option value="/static/styles.css" > Original </option>
<option value="/static/stylesdark.css" > Dark Mode </option>
<option value="/static/stylescyber.css"> Cyber Mode </option>
<option value="/static/stylesfire.css" > Fire & Brimstone </option>
</select>
</div>
const theSelect = document.querySelector('#select')
theSelect.value = localStorage.getItem('theme') || theSelect.options[0].value
theSelect.onchange = e =>
{
localStorage.setItem('theme', theSelect.value)
}
Your code is a lot more complicated than it needs to be
$(function() {
var theme = $("#theme");
var select = $("#select");
function setStyleSheet(selectOption) {
// use local storage, if no value, use default
var themeHref = localStorage.getItem("theme") || "/your/default.css";
// update the stylesheet
theme.attr("href", themeHref);
// if we need to, update the option with the value from local storage
if (selectOption) {
select.find('option[data-value="' + themeHref + '"]').prop('selected', true);
}
}
// bind change event to the select
select.on('change', function() {
// grab selected option
var theme = select.find("option:selected").data("theme");
// update local storage
localStorage.setItem("theme", theme);
// update the style sheeet
setStyleSheet(false);
});
// update the stylesheet on page load
setStyleSheet(true);
});
If you used the value instead of data attributes this would be even simpler.
$(function() { var theme = $("#theme"); var select = $("#select"); function setStyleSheet(selectOption) { // use local storage, if no value, use default var themeHref = localStorage.getItem("theme") || "/your/default.css"; // update the stylesheet theme.attr("href", themeHref); // if we need to, update the option with the value from local storage if (selectOption) { select[0].value = themeHref; } } // bind change event to the select select.on('change', function() { // grab selected option's value var theme = this.value; // update local storage localStorage.setItem("theme", theme); // update the style sheeet setStyleSheet(false); }); // update the stylesheet on page load setStyleSheet(true); });
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.