1 files changed, 198 insertions, 0 deletions
diff --git a/toolkit/content/widgets/moz-toggle/moz-toggle.css b/toolkit/content/widgets/moz-toggle/moz-toggle.css
new file mode 100644
index 0000000000..1bae09a108
--- /dev/null
+++ b/toolkit/content/widgets/moz-toggle/moz-toggle.css
@@ -0,0 +1,198 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+:host {
+  display: grid;
+  gap: 8px;
+  justify-content: space-between;
+  align-items: center;
+}
+
+:host([disabled]) {
+  opacity: 0.4
+}
+
+.toggle-button,
+.label-wrapper {
+  grid-row: 1;
+}
+
+.description-wrapper {
+  color: var(--text-color-deemphasized);
+}
+
+.description-wrapper,
+.description-wrapper ::slotted([slot="support-link"]) {
+  grid-row: 2;
+  font-size: var(--in-content-font-body-size-small);
+  line-height: 1.25;
+  margin: 0;
+  grid-column: 1 / -1;
+}
+
+.toggle-button {
+  --toggle-background-color: var(--button-background-color);
+  --toggle-background-color-hover: var(--button-background-color-hover);
+  --toggle-background-color-active: var(--button-background-color-active);
+  --toggle-background-color-pressed: var(--color-accent-primary);
+  --toggle-background-color-pressed-hover: var(--color-accent-primary-hover);
+  --toggle-background-color-pressed-active: var(--color-accent-primary-active);
+  --toggle-border-color: var(--border-interactive-color);
+  --toggle-border-radius: var(--border-radius-circle);
+  --toggle-border-width: var(--border-width);
+  --toggle-height: var(--size-item-small);
+  --toggle-width: var(--size-item-large);
+  --toggle-dot-background-color: var(--toggle-border-color);
+  --toggle-dot-background-color-on-pressed: var(--color-canvas);
+  --toggle-dot-margin: 1px;
+  --toggle-dot-height: calc(var(--toggle-height) - 2 * var(--toggle-dot-margin) - 2 * var(--toggle-border-width));
+  --toggle-dot-width: var(--toggle-dot-height);
+  --toggle-dot-transform-x: calc(var(--toggle-width) - 4 * var(--toggle-dot-margin) - var(--toggle-dot-width));
+}
+
+.toggle-button {
+  appearance: none;
+  padding: 0;
+  margin: 0;
+  border: var(--toggle-border-width) solid var(--toggle-border-color);
+  height: var(--toggle-height);
+  width: var(--toggle-width);
+  border-radius: var(--toggle-border-radius);
+  background: var(--toggle-background-color);
+  box-sizing: border-box;
+}
+
+.toggle-button:focus-visible {
+  outline: var(--focus-outline);
+  outline-offset: var(--focus-outline-offset);
+}
+
+.toggle-button:enabled:hover {
+  background: var(--toggle-background-color-hover);
+  border-color: var(--toggle-border-color);
+}
+
+.toggle-button:enabled:active {
+  background: var(--toggle-background-color-active);
+  border-color: var(--toggle-border-color);
+}
+
+.toggle-button[aria-pressed="true"] {
+  background: var(--toggle-background-color-pressed);
+  border-color: transparent;
+}
+
+.toggle-button[aria-pressed="true"]:enabled:hover {
+  background: var(--toggle-background-color-pressed-hover);
+  border-color: transparent;
+}
+
+.toggle-button[aria-pressed="true"]:enabled:active {
+  background: var(--toggle-background-color-pressed-active);
+  border-color: transparent;
+}
+
+.toggle-button::before {
+  display: block;
+  content: "";
+  background-color: var(--toggle-dot-background-color);
+  height: var(--toggle-dot-height);
+  width: var(--toggle-dot-width);
+  margin: var(--toggle-dot-margin);
+  border-radius: var(--toggle-border-radius);
+  translate: 0;
+}
+
+.toggle-button[aria-pressed="true"]::before {
+  translate: var(--toggle-dot-transform-x);
+  background-color: var(--toggle-dot-background-color-on-pressed);
+}
+
+.toggle-button[aria-pressed="true"]:enabled:hover::before,
+.toggle-button[aria-pressed="true"]:enabled:active::before {
+  background-color: var(--toggle-dot-background-color-on-pressed);
+}
+
+.toggle-button[aria-pressed="true"]:-moz-locale-dir(rtl)::before,
+.toggle-button[aria-pressed="true"]:dir(rtl)::before {
+  translate: calc(-1 * var(--toggle-dot-transform-x));
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .toggle-button::before {
+    transition: translate 100ms;
+  }
+}
+
+@media (prefers-contrast) {
+  :host([disabled]) {
+    opacity: 1;
+  }
+
+  :host([disabled]) > .toggle-button[aria-pressed="true"],
+  :host([disabled]) > .toggle-button {
+    background-color: var(--toggle-background-color-disabled);
+    border-color: var(--toggle-border-color-disabled);
+  }
+
+  :host([disabled]) > .toggle-button[aria-pressed="false"]::before,
+  :host([disabled]) > .toggle-button[aria-pressed="true"]::before {
+    background-color: var(--toggle-background-color-disabled);
+  }
+
+  .toggle-button {
+    --toggle-dot-background-color: var(--color-accent-primary);
+    --toggle-dot-background-color-hover: var(--color-accent-primary-hover);
+    --toggle-dot-background-color-active: var(--color-accent-primary-active);
+    --toggle-dot-background-color-on-pressed: var(--button-background-color);
+    --toggle-background-color-disabled: var(--button-background-color-disabled);
+    --toggle-border-color-hover: var(--border-interactive-color-hover);
+    --toggle-border-color-active: var(--border-interactive-color-active);
+    --toggle-border-color-disabled: var(--border-interactive-color-disabled);
+  }
+
+  .toggle-button:enabled:hover {
+    border-color: var(--toggle-border-color-hover);
+  }
+
+  .toggle-button:enabled:active {
+    border-color: var(--toggle-border-color-active);
+  }
+
+  .toggle-button[aria-pressed="true"]:enabled {
+    border-color: var(--toggle-border-color);
+    position: relative;
+  }
+
+  .toggle-button[aria-pressed="true"]:enabled:hover,
+  .toggle-button[aria-pressed="true"]:enabled:hover:active  {
+    border-color: var(--toggle-border-color-hover);
+  }
+
+  .toggle-button[aria-pressed="true"]:enabled:active {
+    background-color: var(--toggle-dot-background-color-active);
+    border-color: var(--toggle-dot-background-color-hover);
+  }
+
+  .toggle-button[aria-pressed="true"]:enabled::after {
+    border: 1px solid var(--button-background-color);
+    content: '';
+    position: absolute;
+    height: var(--toggle-height);
+    width: var(--toggle-width);
+    display: block;
+    border-radius: var(--toggle-border-radius);
+    inset: -2px;
+  }
+
+  .toggle-button[aria-pressed="true"]:enabled:active::after {
+    border-color: var(--toggle-border-color-active);
+  }
+
+  .toggle-button:hover::before,
+  .toggle-button:hover:active::before,
+  .toggle-button:active::before {
+    background-color: var(--toggle-dot-background-color-hover);
+  }
+}