other / mew-iview

  <template>

      <div :class="classes">

          <div :class="[prefixCls + '-sidebar']" v-if="shortcuts.length">
              <div
                  :class="[prefixCls + '-shortcut']"
                  v-for="shortcut in shortcuts"
                  @click="handleShortcutClick(shortcut)">{{ shortcut.text }}</div>
          </div>
          <div :class="[prefixCls + '-body']">

              <div :class="[prefixCls + '-content', prefixCls + '-content-left']" v-show="!isTime">

                  <div :class="[datePrefixCls + '-header']" v-show="leftCurrentView !== 'time'">

                      <span
                          :class="iconBtnCls('prev', '-double')"

                          @click="prevYear('left')"><Icon type="ios-arrow-left"></Icon></span>

                      <span
                          :class="iconBtnCls('prev')"
                          @click="prevMonth"

                          v-show="leftCurrentView === 'date'"><Icon type="ios-arrow-left"></Icon></span>

                      <span
                          :class="[datePrefixCls + '-header-label']"

                          @click="showYearPicker('left')">{{ leftYearLabel }}</span>

                      <span
                          :class="[datePrefixCls + '-header-label']"

                          @click="showMonthPicker('left')"

                          v-show="leftCurrentView === 'date'">{{ leftMonthLabel }}</span>

                      <span
                          :class="iconBtnCls('next', '-double')"
                          @click="nextYear('left')"
                          v-show="leftCurrentView === 'year' || leftCurrentView === 'month'"><Icon type="ios-arrow-right"></Icon></span>

                  </div>
                  <date-table

                      v-show="leftCurrentView === 'date'"

                      :year="leftYear"
                      :month="leftMonth"
                      :date="date"
                      :min-date="minDate"
                      :max-date="maxDate"
                      :range-state="rangeState"

                      selection-mode="range"

                      :disabled-date="disabledDate"

                      @on-changerange="handleChangeRange"

                      @on-pick="handleRangePick"
                      @on-pick-click="handlePickClick"></date-table>

                  <year-table

                      ref="leftYearTable"

                      v-show="leftCurrentView === 'year'"

                      :year="leftTableYear"
                      :date="leftTableDate"

                      selection-mode="range"
                      :disabled-date="disabledDate"

                      @on-pick="handleLeftYearPick"
                      @on-pick-click="handlePickClick"></year-table>

                  <month-table

                      ref="leftMonthTable"

                      v-show="leftCurrentView === 'month'"
                      :month="leftMonth"

                      :date="leftTableDate"

                      selection-mode="range"
                      :disabled-date="disabledDate"

                      @on-pick="handleLeftMonthPick"
                      @on-pick-click="handlePickClick"></month-table>

              </div>

              <div :class="[prefixCls + '-content', prefixCls + '-content-right']" v-show="!isTime">

                  <div :class="[datePrefixCls + '-header']" v-show="rightCurrentView !== 'time'">
                       <span
                           :class="iconBtnCls('prev', '-double')"
                           @click="prevYear('right')"
                           v-show="rightCurrentView === 'year' || rightCurrentView === 'month'"><Icon type="ios-arrow-left"></Icon></span>

                      <span
                          :class="[datePrefixCls + '-header-label']"

                          @click="showYearPicker('right')">{{ rightYearLabel }}</span>

                      <span
                          :class="[datePrefixCls + '-header-label']"

                          @click="showMonthPicker('right')"

                          v-show="rightCurrentView === 'date'">{{ rightMonthLabel }}</span>

                      <span
                          :class="iconBtnCls('next', '-double')"

                          @click="nextYear('right')"><Icon type="ios-arrow-right"></Icon></span>

                      <span
                          :class="iconBtnCls('next')"
                          @click="nextMonth"

                          v-show="rightCurrentView === 'date'"><Icon type="ios-arrow-right"></Icon></span>

                  </div>
                  <date-table

                      v-show="rightCurrentView === 'date'"

                      :year="rightYear"
                      :month="rightMonth"
                      :date="rightDate"
                      :min-date="minDate"
                      :max-date="maxDate"
                      :range-state="rangeState"

                      selection-mode="range"

                      :disabled-date="disabledDate"

                      @on-changerange="handleChangeRange"

                      @on-pick="handleRangePick"
                      @on-pick-click="handlePickClick"></date-table>

                  <year-table

                      ref="rightYearTable"

                      v-show="rightCurrentView === 'year'"

                      :year="rightTableYear"
                      :date="rightTableDate"

                      selection-mode="range"
                      :disabled-date="disabledDate"

                      @on-pick="handleRightYearPick"
                      @on-pick-click="handlePickClick"></year-table>

                  <month-table

                      ref="rightMonthTable"

                      v-show="rightCurrentView === 'month'"
                      :month="rightMonth"

                      :date="rightTableDate"

                      selection-mode="range"
                      :disabled-date="disabledDate"

                      @on-pick="handleRightMonthPick"
                      @on-pick-click="handlePickClick"></month-table>

              </div>

              <div :class="[prefixCls + '-content']" v-show="isTime">
                  <time-picker

                      ref="timePicker"

                      v-show="isTime"

                      @on-pick="handleTimePick"
                      @on-pick-click="handlePickClick"></time-picker>

              </div>

              <Confirm
                  v-if="confirm"

                  :show-time="showTime"
                  :is-time="isTime"
                  :time-disabled="timeDisabled"
                  @on-pick-toggle-time="handleToggleTime"

                  @on-pick-clear="handlePickClear"
                  @on-pick-success="handlePickSuccess"></Confirm>

          </div>

      </div>

  </template>
  <script>

      import Icon from '../../icon/icon.vue';
      import DateTable from '../base/date-table.vue';

      import YearTable from '../base/year-table.vue';
      import MonthTable from '../base/month-table.vue';

      import TimePicker from './time-range.vue';

      import Confirm from '../base/confirm.vue';

      import { toDate, prevMonth, nextMonth, initTimeDate } from '../util';

  
      import Mixin from './mixin';

      import Locale from '../../../mixins/locale';

      const prefixCls = 'ivu-picker-panel';
      const datePrefixCls = 'ivu-date-picker';
  

      export default {

          name: 'DatePicker',

          mixins: [ Mixin, Locale ],

          components: { Icon, DateTable, YearTable, MonthTable, TimePicker, Confirm },

          data () {

              return {
                  prefixCls: prefixCls,
                  datePrefixCls: datePrefixCls,
                  shortcuts: [],

                  date: initTimeDate(),

                  value: '',
                  minDate: '',
                  maxDate: '',

                  confirm: false,

                  rangeState: {
                      endDate: null,
                      selecting: false
                  },
                  showTime: false,
                  disabledDate: '',

                  leftCurrentView: 'date',
                  rightCurrentView: 'date',

                  selectionMode: 'range',
                  leftTableYear: null,

                  rightTableYear: null,
                  isTime: false,
                  format: 'yyyy-MM-dd'

              };

          },

          computed: {
              classes () {
                  return [
                      `${prefixCls}-body-wrapper`,

                      `${datePrefixCls}-with-range`,

                      {
                          [`${prefixCls}-with-sidebar`]: this.shortcuts.length
                      }

                  ];

              },

              leftYear () {

                  return this.date.getFullYear();
              },

              leftTableDate () {
                  if (this.leftCurrentView === 'year' || this.leftCurrentView === 'month') {
                      return new Date(this.leftTableYear);
                  } else {
                      return this.date;
                  }
              },

              leftYearLabel () {

                  const tYear = this.t('i.datepicker.year');

                  if (this.leftCurrentView === 'year') {

                      const year = this.leftTableYear;
                      if (!year) return '';

                      const startYear = Math.floor(year / 10) * 10;

                      return `${startYear}${tYear} - ${startYear + 9}${tYear}`;

                  } else {
                      const year = this.leftCurrentView === 'month' ? this.leftTableYear : this.leftYear;
                      if (!year) return '';

                      return `${year}${tYear}`;

                  }

              },

              leftMonth () {

                  return this.date.getMonth();
              },

              leftMonthLabel () {
                  const month = this.leftMonth + 1;
                  return this.t(`i.datepicker.month${month}`);
              },

              rightYear () {

                  return this.rightDate.getFullYear();
              },

              rightTableDate () {
                  if (this.rightCurrentView === 'year' || this.rightCurrentView === 'month') {
                      return new Date(this.rightTableYear);
                  } else {
                      return this.date;
                  }
              },

              rightYearLabel () {

                  const tYear = this.t('i.datepicker.year');

                  if (this.rightCurrentView === 'year') {

                      const year = this.rightTableYear;
                      if (!year) return '';

                      const startYear = Math.floor(year / 10) * 10;

                      return `${startYear}${tYear} - ${startYear + 9}${tYear}`;

                  } else {
                      const year = this.rightCurrentView === 'month' ? this.rightTableYear : this.rightYear;
                      if (!year) return '';

                      return `${year}${tYear}`;

                  }

              },

              rightMonth () {

                  return this.rightDate.getMonth();
              },

              rightMonthLabel () {
                  const month = this.rightMonth + 1;
                  return this.t(`i.datepicker.month${month}`);
              },

              rightDate () {

                  const newDate = new Date(this.date);
                  const month = newDate.getMonth();
                  newDate.setDate(1);
  
                  if (month === 11) {
                      newDate.setFullYear(newDate.getFullYear() + 1);
                      newDate.setMonth(0);
                  } else {
                      newDate.setMonth(month + 1);
                  }
                  return newDate;

              },
              timeDisabled () {
                  return !(this.minDate && this.maxDate);

              }
          },
          watch: {
              value(newVal) {
                  if (!newVal) {
                      this.minDate = null;
                      this.maxDate = null;
                  } else if (Array.isArray(newVal)) {
                      this.minDate = newVal[0] ? toDate(newVal[0]) : null;
                      this.maxDate = newVal[1] ? toDate(newVal[1]) : null;
                      if (this.minDate) this.date = new Date(this.minDate);

                  }

                  if (this.showTime) this.$refs.timePicker.value = newVal;
              },
              minDate (val) {
                  if (this.showTime) this.$refs.timePicker.date = val;
              },
              maxDate (val) {
                  if (this.showTime) this.$refs.timePicker.dateEnd = val;
              },
              format (val) {
                  if (this.showTime) this.$refs.timePicker.format = val;
              },
              isTime (val) {
                  if (val) this.$refs.timePicker.updateScroll();

              }
          },

          methods: {

              resetDate () {
                  this.date = new Date(this.date);
                  this.leftTableYear = this.date.getFullYear();
                  this.rightTableYear = this.rightDate.getFullYear();
              },

              handleClear() {
                  this.minDate = null;
                  this.maxDate = null;

                  this.date = new Date();

                  this.handleConfirm();

                  if (this.showTime) this.$refs.timePicker.handleClear();

              },

              resetView(reset = false) {

                  this.leftCurrentView = 'date';
                  this.rightCurrentView = 'date';
  
                  this.leftTableYear = this.leftYear;
                  this.rightTableYear = this.rightYear;

  
                  if (reset) this.isTime = false;

              },

              prevYear (direction) {
                  if (this[`${direction}CurrentView`] === 'year') {
                      this.$refs[`${direction}YearTable`].prevTenYear();

                  } else if (this[`${direction}CurrentView`] === 'month') {
                      this[`${direction}TableYear`]--;

                  } else {
                      const date = this.date;
                      date.setFullYear(date.getFullYear() - 1);
                      this.resetDate();
                  }

              },

              nextYear (direction) {
                  if (this[`${direction}CurrentView`] === 'year') {
                      this.$refs[`${direction}YearTable`].nextTenYear();

                  } else if (this[`${direction}CurrentView`] === 'month') {
                      this[`${direction}TableYear`]--;

                  } else {
                      const date = this.date;
                      date.setFullYear(date.getFullYear() + 1);
                      this.resetDate();
                  }

              },
              prevMonth () {

                  this.date = prevMonth(this.date);

              },
              nextMonth () {

                  this.date = nextMonth(this.date);

              },

              handleLeftYearPick (year, close = true) {
                  this.handleYearPick(year, close, 'left');
              },
              handleRightYearPick (year, close = true) {
                  this.handleYearPick(year, close, 'right');

              },

              handleYearPick (year, close, direction) {

                  this[`${direction}TableYear`] = year;

                  if (!close) return;

                  this[`${direction}CurrentView`] = 'month';
              },
              handleLeftMonthPick (month) {
                  this.handleMonthPick(month, 'left');
              },
              handleRightMonthPick (month) {
                  this.handleMonthPick(month, 'right');
              },
              handleMonthPick (month, direction) {

                  let year = this[`${direction}TableYear`];
                  if (direction === 'right') {
                      if (month === 0) {
                          month = 11;
                          year--;
                      } else {
                          month--;
                      }
                  }
  
                  this.date.setYear(year);

                  this.date.setMonth(month);
                  this[`${direction}CurrentView`] = 'date';
                  this.resetDate();
              },
              showYearPicker (direction) {
                  this[`${direction}CurrentView`] = 'year';

                  this[`${direction}TableYear`] = this[`${direction}Year`];

              },
              showMonthPicker (direction) {
                  this[`${direction}CurrentView`] = 'month';

              },

              handleConfirm(visible) {
                  this.$emit('on-pick', [this.minDate, this.maxDate], visible);

              },
              handleRangePick (val, close = true) {
                  if (this.maxDate === val.maxDate && this.minDate === val.minDate) return;
  
                  this.minDate = val.minDate;
                  this.maxDate = val.maxDate;
  
                  if (!close) return;

  //                if (!this.showTime) {
  //                    this.handleConfirm(false);
  //                }
                  this.handleConfirm(false);

              },
              handleChangeRange (val) {
                  this.minDate = val.minDate;
                  this.maxDate = val.maxDate;
                  this.rangeState = val.rangeState;

              },
              handleToggleTime () {
                  this.isTime = !this.isTime;
              },
              handleTimePick (date) {
                  this.minDate = date[0];
                  this.maxDate = date[1];
                  this.handleConfirm(false);
              }
          },

          mounted () {

              if (this.showTime) {

                  // todo 这里也到不了

                  this.$refs.timePicker.date = this.minDate;
                  this.$refs.timePicker.dateEnd = this.maxDate;
                  this.$refs.timePicker.value = this.value;
                  this.$refs.timePicker.format = this.format;
                  this.$refs.timePicker.showDate = true;

              }
          }

      };
  </script>