2a09d1a4
 liuqimichale
添加宜春 天水 宣化
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<template>
<transition name="el-zoom-in-top" @after-leave="$emit('dodestroy')">
<div
v-show="visible"
class="el-time-panel el-popper"
:class="popperClass">
<div class="el-time-panel__content" :class="{ 'has-seconds': showSeconds }">
<time-spinner
ref="spinner"
@change="handleChange"
:arrow-control="useArrow"
:show-seconds="showSeconds"
:am-pm-mode="amPmMode"
@select-range="setSelectionRange"
:date="date">
</time-spinner>
</div>
<div class="el-time-panel__footer">
<button
type="button"
class="el-time-panel__btn cancel"
@click="handleCancel">{{ t('el.datepicker.cancel') }}</button>
<button
type="button"
class="el-time-panel__btn"
:class="{confirm: !disabled}"
@click="handleConfirm()">{{ t('el.datepicker.confirm') }}</button>
</div>
</div>
</transition>
</template>
<script type="text/babel">
import { limitTimeRange, isDate, clearMilliseconds, timeWithinRange } from '../util';
import Locale from 'element-ui/src/mixins/locale';
import TimeSpinner from '../basic/time-spinner';
export default {
mixins: [Locale],
components: {
TimeSpinner
},
props: {
visible: Boolean,
timeArrowControl: Boolean
},
watch: {
visible(val) {
if (val) {
this.oldValue = this.value;
this.$nextTick(() => this.$refs.spinner.emitSelectRange('hours'));
} else {
this.needInitAdjust = true;
}
},
value(newVal) {
let date;
if (newVal instanceof Date) {
date = limitTimeRange(newVal, this.selectableRange, this.format);
} else if (!newVal) {
date = this.defaultValue ? new Date(this.defaultValue) : new Date();
}
this.date = date;
if (this.visible && this.needInitAdjust) {
this.$nextTick(_ => this.adjustSpinners());
this.needInitAdjust = false;
}
},
selectableRange(val) {
this.$refs.spinner.selectableRange = val;
},
defaultValue(val) {
if (!isDate(this.value)) {
this.date = val ? new Date(val) : new Date();
}
}
},
data() {
return {
popperClass: '',
format: 'HH:mm:ss',
value: '',
defaultValue: null,
date: new Date(),
oldValue: new Date(),
selectableRange: [],
selectionRange: [0, 2],
disabled: false,
arrowControl: false,
needInitAdjust: true
};
},
computed: {
showSeconds() {
return (this.format || '').indexOf('ss') !== -1;
},
useArrow() {
return this.arrowControl || this.timeArrowControl || false;
},
amPmMode() {
if ((this.format || '').indexOf('A') !== -1) return 'A';
if ((this.format || '').indexOf('a') !== -1) return 'a';
return '';
}
},
methods: {
handleCancel() {
this.$emit('pick', this.oldValue, false);
},
handleChange(date) {
// this.visible avoids edge cases, when use scrolls during panel closing animation
if (this.visible) {
this.date = clearMilliseconds(date);
// if date is out of range, do not emit
if (this.isValidValue(this.date)) {
this.$emit('pick', this.date, true);
}
}
},
setSelectionRange(start, end) {
this.$emit('select-range', start, end);
this.selectionRange = [start, end];
},
handleConfirm(visible = false, first) {
if (first) return;
const date = clearMilliseconds(limitTimeRange(this.date, this.selectableRange, this.format));
this.$emit('pick', date, visible, first);
},
handleKeydown(event) {
const keyCode = event.keyCode;
const mapping = { 38: -1, 40: 1, 37: -1, 39: 1 };
// Left or Right
if (keyCode === 37 || keyCode === 39) {
const step = mapping[keyCode];
this.changeSelectionRange(step);
event.preventDefault();
return;
}
// Up or Down
if (keyCode === 38 || keyCode === 40) {
const step = mapping[keyCode];
this.$refs.spinner.scrollDown(step);
event.preventDefault();
return;
}
},
isValidValue(date) {
return timeWithinRange(date, this.selectableRange, this.format);
},
adjustSpinners() {
return this.$refs.spinner.adjustSpinners();
},
changeSelectionRange(step) {
const list = [0, 3].concat(this.showSeconds ? [6] : []);
const mapping = ['hours', 'minutes'].concat(this.showSeconds ? ['seconds'] : []);
const index = list.indexOf(this.selectionRange[0]);
const next = (index + step + list.length) % list.length;
this.$refs.spinner.emitSelectRange(mapping[next]);
}
},
mounted() {
this.$nextTick(() => this.handleConfirm(true, true));
this.$emit('mounted');
}
};
</script>
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