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src/components/layout/sider.vue 4.57 KB
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  <template>
      <div 
          :class="wrapClasses" 
          :style="{width: siderWidth + 'px', minWidth: siderWidth + 'px', maxWidth: siderWidth + 'px', flex: '0 0 ' + siderWidth + 'px'}">
          <span v-show="showZeroTrigger" @click="toggleCollapse" :class="zeroWidthTriggerClasses">
              <i class="ivu-icon ivu-icon-navicon-round"></i>
          </span>
          <div :class="`${prefixCls}-children`">
              <slot></slot>
          </div>
          <div v-show="!mediaMatched && !hideTrigger" :class="triggerClasses" @click="toggleCollapse" :style="{width: siderWidth + 'px'}">
              <i :class="triggerIconClasses"></i>
          </div>
      </div>
  </template>
  <script>
      import { on, off } from '../../utils/dom';
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      import { oneOf, dimensionMap } from '../../utils/assist';
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      const prefixCls = 'ivu-layout-sider';
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      if (typeof window !== 'undefined') {
          const matchMediaPolyfill = mediaQuery => {
              return {
                  media: mediaQuery,
                  matches: false,
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                  on() {},
                  off() {},
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              };
          };
          window.matchMedia = window.matchMedia || matchMediaPolyfill;
      }
      export default {
          name: 'Sider',
          props: {
              value: {  // if it's collpased now
                  type: Boolean,
                  default: false
              },
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              width: {
                  type: [Number, String],
                  default: 200
              },
              collapsedWidth: {
                  type: [Number, String],
                  default: 64
              },
              hideTrigger: {
                  type: Boolean,
                  default: false
              },
              breakpoint: {
                  type: String,
                  default: '',
                  validator (val) {
                      return oneOf(val, ['xs', 'sm', 'md', 'lg', 'xl']);
                  }
              },
              defaultCollapsed: {
                  type: Boolean,
                  default: false
              },
              reverseArrow: {
                  type: Boolean,
                  default: false
              }
          },
          data () {
              return {
                  prefixCls: prefixCls,
                  mediaMatched: false
              };
          },
          computed: {
              wrapClasses () {
                  return [
                      `${prefixCls}`,
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                      this.siderWidth ? '' : `${prefixCls}-zero-width`,
                      this.value ? `${prefixCls}-collapsed` : ''
                  ];
              },
              triggerClasses () {
                  return [
                      `${prefixCls}-trigger`,
                      this.value ? `${prefixCls}-trigger-collapsed` : '',
                  ];
              },
              zeroWidthTriggerClasses () {
                  return [
                      `${prefixCls}-zero-width-trigger`,
                      this.reverseArrow ? `${prefixCls}-zero-width-trigger-left` : ''
                  ];
              },
              triggerIconClasses () {
                  return [
                      'ivu-icon',
                      `ivu-icon-chevron-${this.reverseArrow ? 'right' : 'left'}`,
                      `${prefixCls}-trigger-icon`,
                  ];
              },
              siderWidth () {
                  return this.value ? (this.mediaMatched ? 0 : parseInt(this.collapsedWidth)) : parseInt(this.width);
              },
              showZeroTrigger () {
                  return this.mediaMatched && !this.hideTrigger || (parseInt(this.collapsedWidth) === 0) && this.value && !this.hideTrigger;
              }
          },
          methods: {
              toggleCollapse () {
                  this.$emit('input', !this.value);
                  this.$emit('on-collapse', !this.value);
              },
              matchMedia () {
                  let matchMedia;
                  if (window.matchMedia) {
                      matchMedia = window.matchMedia;
                  }
                  let mediaMatched = this.mediaMatched;
                  this.mediaMatched = matchMedia(`(max-width: ${dimensionMap[this.breakpoint]})`).matches;
                  if (this.mediaMatched !== mediaMatched) {
                      this.$emit('input', this.mediaMatched);
                      this.$emit('on-collapse', this.mediaMatched);
                  }
              },
              onWindowResize () {
                  this.matchMedia();
              }
          },
          mounted () {
              on(window, 'resize', this.onWindowResize);
              this.matchMedia();
              this.$emit('input', this.defaultCollapsed);
          },
          destroyed () {
              off(window, 'resize', this.onWindowResize);
          }
      };
  </script>