From 0b4d5b3acd55d7a38e945a002e54c6e4254acf5f Mon Sep 17 00:00:00 2001
From: upsiflu <upsiflu@gmail.com>
Date: Tue, 4 Feb 2025 14:54:09 +0100
Subject: [PATCH] refactor(ui): improve slider style

---
 front/src/components/ui/Slider.vue    | 57 ++++++++++++++++++++++-----
 front/ui-docs/components/ui/slider.md | 24 ++++++++---
 2 files changed, 66 insertions(+), 15 deletions(-)

diff --git a/front/src/components/ui/Slider.vue b/front/src/components/ui/Slider.vue
index b58cec20d..414714358 100644
--- a/front/src/components/ui/Slider.vue
+++ b/front/src/components/ui/Slider.vue
@@ -3,6 +3,7 @@ import { ref, computed, onMounted } from 'vue'
 
 import Layout from "~/components/ui/Layout.vue"
 import Spacer from "~/components/ui/Spacer.vue"
+import Markdown from "~/components/ui/Markdown.vue"
 
 const props = defineProps<{
   label?: string,
@@ -48,7 +49,7 @@ onMounted(() => {
       {{ label }}
     </label>
 
-    <!-- Model indicator -->
+    <!-- List of options -->
 
     <Layout flex no-gap>
       <button v-for="key in keys" :class="[$style.key, {[$style.current]: key===model}]"
@@ -62,19 +63,23 @@ onMounted(() => {
 
     <!-- Slider -->
 
-    <input ref="input" type="range"
-      style="width: var(--slider-width);"
-      :max="keys.length - 1"
-      v-model="index"
-    />
+    <span style="position: relative;">
+      <input ref="input" type="range"
+        style="width: var(--slider-width); opacity: .001;"
+        :max="keys.length - 1"
+        v-model="index" />
+      <div :class="$style.range" />
+      <div :class="$style.pin" />
+    </span>
     <Spacer  size-8/>
 
     <!-- Description of current option -->
+
     <span style="position: relative;">
-    <span style="display: inline-flex; margin-right: -100%; width: 100%; visibility: hidden;" >
-      <span v-for="key in keys" :class="$style.description" :style="`margin-right: -20%; --current-step: 0; color: magenta;`">{{ options[key] }}</span>
-    </span>
-    <span style="position: absolute;" :class="$style.description">{{ options[model] }}</span>
+      <span style="display: inline-flex; margin-right: -100%; width: 100%; visibility: hidden;" >
+        <span v-for="key in keys" :class="$style.description" :style="`margin-right: -20%; --current-step: 0; color: magenta;`"><Markdown :md="options[key]" /></span>
+      </span>
+      <span style="position: absolute;" :class="$style.description"><Markdown :md="options[model]" /></span>
     </span>
   </Layout>
 </template>
@@ -103,5 +108,37 @@ onMounted(() => {
     --inset: calc(var(--step-size) * var(--current-step));
     margin-left: var(--inset);
     margin-right: calc(0px - var(--inset));
+    p {
+      margin: 0;
+      line-height: 1.5em;
+    }
   }
+  // Fake slider
+  .range {
+    width: calc(var(--step-size) * var(--current-step));
+    border-bottom: 2px solid currentcolor;
+    position: absolute;
+    top: 11px;
+    transition: all .1s;
+    pointer-events: none;
+  }
+  input:focus~.range {
+    // focused style
+  }
+  .pin {
+    border-radius: 8px;
+    width: 16px;
+    height: 16px;
+    left: calc(var(--step-size) * var(--current-step));
+    background: currentcolor;
+    position: absolute;
+    top: 4px;
+    transition: all .1s;
+    pointer-events: none;
+  }
+  input:focus~.pin {
+    background-color: var(--focus-ring-color);
+    outline: 2px solid currentcolor;
+  }
+
 </style>
diff --git a/front/ui-docs/components/ui/slider.md b/front/ui-docs/components/ui/slider.md
index c2ba5cb39..ee68f2b14 100644
--- a/front/ui-docs/components/ui/slider.md
+++ b/front/ui-docs/components/ui/slider.md
@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { ref } from 'vue'
 
+import Spacer from "~/components/ui/Spacer.vue"
 import Slider from '~/components/ui/Slider.vue'
 
 const options = {
@@ -9,7 +10,7 @@ const options = {
   everyone: "Everyone can find and edit this"
 } as const
 
-const option = ref<keyof typeof options>('me')
+const option = ref<keyof typeof options>('pod')
 </script>
 
 ```ts
@@ -18,9 +19,10 @@ import Slider from "~/components/ui/Slider.vue";
 
 # Slider
 
-Let a user select a value along a gradient.
+Let a user select a value along a line.
 
-The model (required) is the current value.
+For each option, provide a description. Markdown is supported.
+Select a key from the `options` by setting `v-model`
 
 ```ts
 const options = {
@@ -33,10 +35,21 @@ const option = ref<keyof typeof options>("me");
 ```
 
 ```vue-html
-<Slider :options="options" v-model="option" label="Privacy" />
+<Slider :options="options" v-model="option" label="Privacy level" />
 ```
 
-<Slider :options="options" v-model="option" label="Privacy" />
+<Spacer />
+<Slider :options="options" v-model="option" label="Privacy level" />
+
+## Add a label
+
+You can either specify the `label` prop or add custom Html into the `#label` slot.
+
+## Autofocus
+
+Add the prop `autofocus` to focus the slider as soon as it renders. Make sure to only autofocus one element per page.
+
+---
 
 Functionality:
 
@@ -55,5 +68,6 @@ Design:
 - A pin (same as in the toggle component)
 - a range (very faint)
 - Ticks
+- Constant dimensions, fitting the largest text box
 
 - Not to be confused with a pearls navigation patterns (list of dots; indicates temporal range)