components/uni-ui/lib/uni-number-box/uni-number-box.vue

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<template>
	<view class="uni-numbox">
		<view @click="_calcValue('minus')" class="uni-numbox__minus">
			<text class="uni-numbox--text" :class="{ 'uni-numbox--disabled': inputValue <= min || disabled }">-</text>
		</view>
		<input :disabled="disabled" @blur="_onBlur" class="uni-numbox__value" type="number" v-model="inputValue" />
		<view @click="_calcValue('plus')" class="uni-numbox__plus">
			<text class="uni-numbox--text" :class="{ 'uni-numbox--disabled': inputValue >= max || disabled }">+</text>
		</view>
	</view>
</template>
<script>
	export default {
		name: "UniNumberBox",
		props: {
			value: {
				type: [Number, String],
				default: 1
			},
			min: {
				type: Number,
				default: 0
			},
			max: {
				type: Number,
				default: 100
			},
			step: {
				type: Number,
				default: 1
			},
			disabled: {
				type: Boolean,
				default: false
			}
		},
		data() {
			return {
				inputValue: 0
			};
		},
		watch: {
			value(val) {
				this.inputValue = +val;
			},
			inputValue(newVal, oldVal) {
				if (+newVal !== +oldVal) {
					this.$emit("change", newVal);
				}
			}
		},
		created() {
			this.inputValue = +this.value;
		},
		methods: {
			_calcValue(type) {
				if (this.disabled) {
					return;
				}
				const scale = this._getDecimalScale();