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Add a switch for going back to system theme

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Philipp Oppermann
2021-10-17 15:40:48 +02:00
parent 69917e234c
commit 76b6c445e4
3 changed files with 79 additions and 9 deletions
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58
blog/sass/css/edition-2/main.scss
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@@ -983,10 +983,12 @@ img {
/* Manual switch between dark and light mode */
@mixin light-switch-light {
// icon: https://icons.getbootstrap.com/icons/moon-fill/ (MIT licensed)
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23004' class='bi bi-moon' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M14.53 10.53a7 7 0 0 1-9.058-9.058A7.003 7.003 0 0 0 8 15a7.002 7.002 0 0 0 6.53-4.47z'/%3E%3C/svg%3E");
}
@mixin light-switch-dark {
// icon: https://icons.getbootstrap.com/icons/brightness-high-fill/ (MIT licensed)
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23ff9' class='bi bi-brightness-high-fill' viewBox='0 0 16 16'%3E%3Cpath d='M12 8a4 4 0 1 1-8 0 4 4 0 0 1 8 0zM8 0a.5.5 0 0 1 .5.5v2a.5.5 0 0 1-1 0v-2A.5.5 0 0 1 8 0zm0 13a.5.5 0 0 1 .5.5v2a.5.5 0 0 1-1 0v-2A.5.5 0 0 1 8 13zm8-5a.5.5 0 0 1-.5.5h-2a.5.5 0 0 1 0-1h2a.5.5 0 0 1 .5.5zM3 8a.5.5 0 0 1-.5.5h-2a.5.5 0 0 1 0-1h2A.5.5 0 0 1 3 8zm10.657-5.657a.5.5 0 0 1 0 .707l-1.414 1.415a.5.5 0 1 1-.707-.708l1.414-1.414a.5.5 0 0 1 .707 0zm-9.193 9.193a.5.5 0 0 1 0 .707L3.05 13.657a.5.5 0 0 1-.707-.707l1.414-1.414a.5.5 0 0 1 .707 0zm9.193 2.121a.5.5 0 0 1-.707 0l-1.414-1.414a.5.5 0 0 1 .707-.707l1.414 1.414a.5.5 0 0 1 0 .707zM4.464 4.465a.5.5 0 0 1-.707 0L2.343 3.05a.5.5 0 1 1 .707-.707l1.414 1.414a.5.5 0 0 1 0 .708z'/%3E%3C/svg%3E");
}
@@ -1024,3 +1026,59 @@ img {
transition: 200ms ease-out;
opacity: 1;
}
/* Clear theme override and go back to system theme */
@mixin light-switch-reset-light {
// icon: https://icons.getbootstrap.com/icons/x-circle-fill/ (MIT licensed)
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23666' class='bi bi-x-circle' viewBox='0 0 16 16'%3E%3Cpath d='M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z'/%3E%3Cpath d='M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
}
@mixin light-switch-reset-dark {
// icon: https://icons.getbootstrap.com/icons/x-circle-fill/ (MIT licensed)
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23999' class='bi bi-x-circle' viewBox='0 0 16 16'%3E%3Cpath d='M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z'/%3E%3Cpath d='M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
}
.light-switch-reset {
@include light-switch-reset-light();
}
.light-switch-reset {
display: none;
}
[data-theme="light"] .light-switch-reset {
display: block;
}
[data-theme="dark"] .light-switch-reset {
@include light-switch-reset-dark();
display: block;
}
@media (prefers-color-scheme: dark) {
.light-switch-reset {
@include light-switch-reset-dark();
}
[data-theme="light"] .light-switch-reset {
@include light-switch-reset-light();
}
}
.light-switch-reset {
position: fixed;
left: 5rem;
bottom: 1.5rem;
background-repeat: no-repeat;
width: 2rem;
height: 2rem;
cursor: pointer;
opacity: 0.6;
}
.light-switch-reset:hover {
transform: scale(1.1);
transition: 200ms ease-out;
opacity: 1;
}

15
blog/static/js/edition-2/main.js
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@@ -74,12 +74,23 @@ function toggle_lights() {
}
function set_theme(theme) {
document.documentElement.setAttribute("data-theme", theme)
set_giscus_theme(theme)
localStorage.setItem("theme", theme)
}
function clear_theme_override() {
document.documentElement.removeAttribute("data-theme");
set_giscus_theme("preferred_color_scheme")
localStorage.removeItem("theme")
}
function set_giscus_theme(theme) {
let comment_form = document.querySelector("iframe.giscus-frame");
document.documentElement.setAttribute("data-theme", theme);
if (comment_form != null) {
comment_form.contentWindow.postMessage({
giscus: { setConfig: { theme: theme } }
}, "https://giscus.app")
}
localStorage.setItem("theme", theme);
}

1
blog/templates/edition-2/base.html
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@@ -58,6 +58,7 @@
</div>
<div class="light-switch" onclick="toggle_lights()" title="Switch between light and dark theme"></div>
<div class="light-switch-reset" onclick="clear_theme_override()" title="Clear the theme override and go back to the system theme"></div>
<script data-goatcounter="https://phil-opp.goatcounter.com/count" async src="//gc.zgo.at/count.js"></script>
</body>