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Patterns.dev Plugin patterns Vue.js

MouseTracker01.vue Raw #

<!-- MouseTracker.vue -->
<script setup>
import { ref, onMounted, onUnmounted } from 'vue'
  
const x = ref(0)
const y = ref(0)
 
const update = e => {
  x.value = e.pageX
  y.value = e.pageY
}
 
onMounted(() => window.addEventListener('mousemove', update))
onUnmounted(() => window.removeEventListener('mousemove', update))
</script>
 
<template>
  <slot :x="x" :y="y"/>
</template>

MouseTracker02.js Raw #

// composable
// https://vuejs.org/guide/reusability/composables
// mouse.js
import { ref, onMounted, onUnmounted } from 'vue'

// by convention, composable function names start with "use"
export function useMouse() {
  // state encapsulated and managed by the composable
  const x = ref(0)
  const y = ref(0)

  // a composable can update its managed state over time.
  function update(event) {
    x.value = event.pageX
    y.value = event.pageY
  }

  // a composable can also hook into its owner component's
  // lifecycle to setup and teardown side effects.
  onMounted(() => window.addEventListener('mousemove', update))
  onUnmounted(() => window.removeEventListener('mousemove', update))

  // expose managed state as return value
  return { x, y }
}


// then
<script setup>
import { useMouse } from './mouse.js'

const { x, y } = useMouse()
</script>

<template>Mouse position is at: {{ x }}, {{ y }}</template>

Toggle.vue Raw #

<template>
  <slot :checkbox="checkbox" :toggleCheckbox="toggleCheckbox"></slot>
</template>

<script setup>
  import { ref } from "vue";

  const checkbox = ref(false);

  const toggleCheckbox = () => {
    checkbox.value = !checkbox.value;
  };
</script>




<!-- usage  -->
<template>
  <!-- Toggle element 1 -->
  <ToggleComponent v-slot="{ checkbox, toggleCheckbox }">
    <div class="comp">
      <label class="switch">
        <input type="checkbox" :value="checkbox" @click="toggleCheckbox" />
        <div class="slider rounded" :class="checkbox ? 'active' : ''"></div>
      </label>
    </div>
  </ToggleComponent>

  <!-- Toggle element 2 -->
  <ToggleComponent v-slot="{ checkbox, toggleCheckbox }">
    <div class="comp">
      <button class="toggle-button" @click="toggleCheckbox">
        Toggle | <span>{{ checkbox ? "Yes 😀" : "No 😔" }}</span>
      </button>
    </div>
  </ToggleComponent>

  <!-- Toggle element 3 -->
  <ToggleComponent v-slot="{ checkbox, toggleCheckbox }">
    <div class="comp">
      <button
        :class="['tab-button', { active: checkbox }]"
        @click="toggleCheckbox"
      >
        On
      </button>
      <button
        :class="['tab-button', { active: !checkbox }]"
        @click="toggleCheckbox"
      >
        Off
      </button>
    </div>
  </ToggleComponent>
</template>

<script setup>
  import ToggleComponent from "./components/ToggleComponent";
</script>