Todo.vue
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<template>
<li :class="{ completed: todo.done, editing: editing }" class="todo">
<div class="view">
<input
:checked="todo.done"
class="toggle"
type="checkbox"
@change="toggleTodo( todo)"
>
<label @dblclick="editing = true" v-text="todo.text" />
<button class="destroy" @click="deleteTodo( todo )" />
</div>
<input
v-show="editing"
v-focus="editing"
:value="todo.text"
class="edit"
@keyup.enter="doneEdit"
@keyup.esc="cancelEdit"
@blur="doneEdit"
>
</li>
</template>
<script>
export default {
name: 'Todo',
directives: {
focus(el, { value }, { context }) {
if (value) {
context.$nextTick(() => {
el.focus()
})
}
}
},
props: {
todo: {
type: Object,
default: function() {
return {}
}
}
},
data() {
return {
editing: false
}
},
methods: {
deleteTodo(todo) {
this.$emit('deleteTodo', todo)
},
editTodo({ todo, value }) {
this.$emit('editTodo', { todo, value })
},
toggleTodo(todo) {
this.$emit('toggleTodo', todo)
},
doneEdit(e) {
const value = e.target.value.trim()
const { todo } = this
if (!value) {
this.deleteTodo({
todo
})
} else if (this.editing) {
this.editTodo({
todo,
value
})
this.editing = false
}
},
cancelEdit(e) {
e.target.value = this.todo.text
this.editing = false
}
}
}
</script>