feat: support iconify customization (#199)

Co-authored-by: Anthony Fu <[email protected]>

package.json

@@ -39,7 +39,7 @@
     "@iconify/collections": "^1.0.441",
     "@iconify/types": "^2.0.0",
     "@iconify/utils": "^2.1.25",
-    "@iconify/vue": "^4.1.2",
+    "@iconify/vue": "4.1.3-beta.1",
     "@nuxt/devtools-kit": "^1.3.9",
     "@nuxt/kit": "^3.12.4",
     "consola": "^3.2.3",

playground/app.config.ts

@@ -5,7 +5,7 @@ export default defineAppConfig({
     aliases: {
       github: 'carbon:logo-github',
       nuxt: 'logos:nuxt-icon',
-      rocket: 'fluent-emoji:rocket',
+      rocket: 'skill-icons:rocket',
       nxt: 'NuxtLogo',
     },
   },

playground/app.vue

@@ -16,6 +16,13 @@ const mode = useCookie<'svg' | 'css'>('nuxt-icon-demo-mode', {
 const iconsRaw = useCookie<string[]>('nuxt-icon-demo-icons', {
   default: () => ['logos-nuxt-icon', 'logos-vitejs', 'logos-vue'],
 })
+const stroke = useCookie<number>('nuxt-icon-demo-stroke', {
+  default: () => 0.5,
+})
+
+const customize = (content: string) => {
+  return content.replace(/stroke-width="[^"]*"/g, `stroke-width="${stroke.value}"`)
+}
 
 const icons = ref<string[]>(iconsRaw.value)
 
@@ -36,6 +43,7 @@ function addRandom() {
 function clear() {
   icons.value = []
   iconsRaw.value = icons.value
+  stroke.value = 0.5
 }
 </script>
 
@@ -51,6 +59,17 @@ function clear() {
           CSS
         </option>
       </select>
+      <div class="flex gap-2 mb-0.5 items-center">
+        <div>Stroke:</div>
+        <input
+          v-model="stroke"
+          type="range"
+          class="mt-1.5"
+          min="0.5"
+          step="0.1"
+          max="3"
+        >
+      </div>
       <button
         class="flex items-center gap-1"
         @click="addRandom"
@@ -92,6 +111,7 @@ function clear() {
           <Icon
             :name="icon"
             :mode="mode"
+            :customize
           />
         </div>
         <div class="text-xs font-mono opacity-50">
@@ -109,33 +129,39 @@ function clear() {
         <Icon
           name="uil:github"
           :mode
+          :customize
         />
         <Icon
           name="uil:github"
           size="24"
           :mode
+          :customize
         />
         <Icon
           name="uil:github"
           size="48"
           :mode
+          :customize
         />
       </p>
       <p>
         Global components:
         <Icon
           name="NuxtLogo"
           :mode
+          :customize
         />
         <Icon
           name="NuxtLogo"
           size="24"
           :mode
+          :customize
         />
         <Icon
           name="NuxtLogo"
           size="48"
           :mode
+          :customize
         />
       </p>
       <p>
@@ -144,6 +170,7 @@ function clear() {
           name="custom1:nuxt-v1"
           size="64"
           :mode
+          :customize
         />
         <Icon
           name="custom1:nuxt-v2"
@@ -154,11 +181,13 @@ function clear() {
           name="custom1:nuxt-v3-beta"
           size="64"
           :mode
+          :customize
         />
         <Icon
           name="custom1:nuxt-v3"
           size="64"
           :mode
+          :customize
         />
       </p>
       <p>
@@ -167,6 +196,7 @@ function clear() {
           name="layer:layer"
           size="64"
           :mode
+          :customize
         />
       </p>
       <!-- <p>
@@ -187,27 +217,32 @@ function clear() {
           name="github"
           size="24"
           :mode
+          :customize
         />
         <Icon
           name="nuxt"
           size="24"
           :mode
+          :customize
         />
         <Icon
           name="rocket"
           size="24"
           :mode
+          :customize
         />
         <Icon
           name="nxt"
           size="24"
+          :customize
         />
       </p>
       <p>
         `i-` syntax:
         <Icon
-          name="i-fluent-emoji-high-contrast-1st-place-medal"
+          name="i-solar:medal-ribbon-bold-duotone"
           :mode
+          :customize
         />
       </p>
       <!-- <p>
@@ -223,10 +258,12 @@ function clear() {
         <Icon
           name="i-ph-code"
           :mode
+          :customize
         />
         <Icon
           name="ph:table"
           :mode
+          :customize
         />
       </p>
     </div>

src/module.ts

@@ -53,6 +53,7 @@ export default defineNuxtModule<ModuleOptions>({
     mode: schema['mode'].$default,
     attrs: schema['attrs'].$default,
     collections: schema['collections'].$default,
+    customize: schema['customize'].$default,
   },
   async setup(options, nuxt) {
     const resolver = createResolver(import.meta.url)

src/runtime/components/css.ts

@@ -1,8 +1,9 @@
 import { addIcon, getIcon as _getIcon } from '@iconify/vue'
 import { computed, watch, h, defineComponent } from 'vue'
 import { getIconCSS } from '@iconify/utils/lib/css/icon'
+import type { PropType } from 'vue'
 import type { IconifyIcon } from '@iconify/types'
-import type { NuxtIconRuntimeOptions, NuxtIconRuntimeServerOptions } from '../../types'
+import type { NuxtIconRuntimeOptions, NuxtIconRuntimeServerOptions, IconifyIconCustomizeCallback } from '../../types'
 import { loadIcon } from './shared'
 import { useAppConfig, useNuxtApp, useHead, useRuntimeConfig } from '#imports'
 
@@ -65,9 +66,13 @@ export const NuxtIconCss = /* @__PURE__ */ defineComponent({
   name: 'NuxtIconCss',
   props: {
     name: {
-      type: String,
+      type: String as PropType<string>,
       required: true,
     },
+    customize: {
+      type: Function as PropType<IconifyIconCustomizeCallback>,
+      required: false,
+    },
   },
   async setup(props) {
     const nuxt = useNuxtApp()
@@ -95,6 +100,7 @@ export const NuxtIconCss = /* @__PURE__ */ defineComponent({
       const css = getIconCSS(icon, {
         iconSelector,
         format: 'compressed',
+        customise: props.customize,
       })
       if (options.cssLayer && withLayer) {
         return `@layer ${options.cssLayer} { ${css} }`

src/runtime/components/index.ts

@@ -1,7 +1,7 @@
 import { getIcon as _getIcon } from '@iconify/vue'
 import type { PropType } from 'vue'
 import { computed, defineComponent, h } from 'vue'
-import type { NuxtIconRuntimeOptions } from '../../types'
+import type { NuxtIconRuntimeOptions, IconifyIconCustomizeCallback } from '../../types'
 import { NuxtIconCss } from './css'
 import { NuxtIconSvg } from './svg'
 import { useResolvedName } from './shared'
@@ -24,6 +24,10 @@ export default defineComponent({
       required: false,
       default: null,
     },
+    customize: {
+      type: Function as PropType<IconifyIconCustomizeCallback>,
+      required: false,
+    },
   },
   async setup(props, { slots }) {
     const nuxtApp = useNuxtApp()
@@ -41,6 +45,7 @@ export default defineComponent({
         ? { fontSize: Number.isNaN(+size) ? size : size + 'px' }
         : null
     })
+    const customize = props.customize || options.customize
 
     return () => h(
       component.value,
@@ -49,6 +54,7 @@ export default defineComponent({
         name: name.value,
         class: options.class,
         style: style.value,
+        customize,
       },
       slots,
     )

src/runtime/components/svg.ts

@@ -1,16 +1,21 @@
 import { Icon as Iconify, addIcon } from '@iconify/vue'
 import { h } from 'vue'
-import type { NuxtIconRuntimeOptions } from '../../types'
+import type { PropType } from 'vue'
+import type { NuxtIconRuntimeOptions, IconifyIconCustomizeCallback } from '../../types'
 import { loadIcon, useResolvedName } from './shared'
 import { useAsyncData, useNuxtApp, defineComponent, useAppConfig } from '#imports'
 
 export const NuxtIconSvg = /* @__PURE__ */ defineComponent({
   name: 'NuxtIconSvg',
   props: {
     name: {
-      type: String,
+      type: String as PropType<string>,
       required: true,
     },
+    customize: {
+      type: Function as PropType<IconifyIconCustomizeCallback>,
+      required: false,
+    },
   },
   async setup(props, { slots }) {
     const nuxt = useNuxtApp()
@@ -40,6 +45,8 @@ export const NuxtIconSvg = /* @__PURE__ */ defineComponent({
       icon: name.value,
       ssr: true,
       class: options.class,
+      // Iconify uses `customise`, where we expose `customize` for consistency
+      customise: props.customize,
     }, slots)
   },
 })

src/schema-types.ts

@@ -1,5 +1,7 @@
 // This file is generated from scripts/schema.ts
 
+import type { IconifyIconCustomizeCallback } from './types'
+
 export interface NuxtIconRuntimeOptions {
   /**
    * Icon Size
@@ -124,4 +126,11 @@ export interface NuxtIconRuntimeOptions {
    * @default "/api/_nuxt_icon"
    */
   localApiEndpoint: string
+
+  /**
+   * Callback to customize iconify data
+   *
+   * @default undefined
+   */
+  customize: IconifyIconCustomizeCallback
 }

src/schema.ts

@@ -135,4 +135,12 @@ export const schema = {
       tags: ['@studioIcon material-symbols:api'],
     },
   },
+  customize: {
+    $default: undefined,
+    $schema: {
+      title: 'Customize callback',
+      description: 'Customize icon content (replace stroke-width, colors, etc...).',
+      tags: ['@studioIcon material-symbols:edit'],
+    },
+  },
 } satisfies SchemaDefinition

src/types.ts

@@ -3,6 +3,13 @@ import type { NuxtIconRuntimeOptions } from './schema-types'
 
 export type { NuxtIconRuntimeOptions }
 
+export type IconifyIconCustomizeCallback = (
+  content: string,
+  name?: string,
+  prefix?: string,
+  provider?: string
+) => string
+
 export interface NuxtIconRuntimeServerOptions {
   /**
    * List of pre-compiled CSS classnames to be used for server-side CSS icon rendering