<template>
  <div>
    <p class="tip">全键盘操作</p>

    <vxe-toolbar :refresh="{query: findList}">
      <template #buttons>
        <vxe-button>
          <template #default>新增操作</template>
          <template #dropdowns>
            <vxe-button type="text" @click="insertEvent(null)">从第一行插入</vxe-button>
            <vxe-button type="text" @click="insertEvent(-1)">从最后插入</vxe-button>
            <vxe-button type="text" @click="insertEvent($refs.xTable.getData(100))">插入到 100 行</vxe-button>
            <vxe-button type="text" @click="insertEvent($refs.xTable.getData(400))">插入到 400 行</vxe-button>
          </template>
        </vxe-button>
        <vxe-button>
          <template #default>删除操作</template>
          <template #dropdowns>
            <vxe-button type="text" @click="$refs.xTable.removeCheckboxRow()">删除选中</vxe-button>
            <vxe-button type="text" @click="$refs.xTable.remove($refs.xTable.getData(0))">删除第一行</vxe-button>
            <vxe-button type="text" @click="$refs.xTable.remove($refs.xTable.getData($refs.xTable.getData().length - 1))">删除最后一行</vxe-button>
            <vxe-button type="text" @click="$refs.xTable.remove($refs.xTable.getData(100))">删除第 100 行</vxe-button>
          </template>
        </vxe-button>
        <vxe-button>
          <template #default>校验操作</template>
          <template #dropdowns>
            <vxe-button type="text" @click="validEvent">快速校验</vxe-button>
            <vxe-button type="text" @click="fullValidEvent">完整快速校验</vxe-button>
            <vxe-button type="text" @click="selectValidEvent">选中行校验</vxe-button>
          </template>
        </vxe-button>
        <vxe-button @click="getInsertEvent">获取新增</vxe-button>
        <vxe-button @click="getRemoveEvent">获取删除</vxe-button>
        <vxe-button @click="getUpdateEvent">获取修改</vxe-button>
        <vxe-button>
          <template #default>滚动操作</template>
          <template #dropdowns>
            <vxe-button type="text" @click="$refs.xTable.scrollToRow($refs.xTable.getData(10))">滚动到第 10 行</vxe-button>
            <vxe-button type="text" @click="$refs.xTable.scrollToRow($refs.xTable.getData(400))">滚动第 400 行</vxe-button>
            <vxe-button type="text" @click="$refs.xTable.scrollToColumn($refs.xTable.getColumns(1))">滚动第 1 列</vxe-button>
            <vxe-button type="text" @click="$refs.xTable.scrollToColumn($refs.xTable.getColumns(10))">滚动第 10 列</vxe-button>
          </template>
        </vxe-button>
      </template>
    </vxe-toolbar>

    <vxe-table
      border
      resizable
      show-overflow
      keep-source
      ref="xTable"
      height="300"
      :loading="loading"
      :edit-rules="validRules"
      :mouse-config="{selected: true}"
      :edit-config="{trigger: 'dblclick', mode: 'cell', showStatus: true}"
      :keyboard-config="{isArrow: true, isDel: true, isEnter: true, isTab: true, isEdit: true}"
      :scroll-y="{enabled: true}">
      <vxe-column type="checkbox" width="60"></vxe-column>
      <vxe-column type="seq" width="100"></vxe-column>
      <vxe-column field="name" title="Name" sortable width="200" :edit-render="{name: 'input'}"></vxe-column>
      <vxe-column field="age" title="Age" width="200" :edit-render="{name: 'input'}"></vxe-column>
      <vxe-column field="sex" title="Sex" width="200" :edit-render="{name: 'input'}"></vxe-column>
      <vxe-column field="rate" title="Rate" width="200"></vxe-column>
      <vxe-column field="region" title="Region" width="200"></vxe-column>
      <vxe-column field="time" title="Time" width="200"></vxe-column>
      <vxe-column field="address" title="Address" width="300" show-overflow></vxe-column>
      <vxe-column field="updateTime" title="UpdateTime" width="200"></vxe-column>
      <vxe-column field="createTime" title="CreateTime" width="200"></vxe-column>
    </vxe-table>

    <pre>
      <pre-code>
        | Arrow Up ↑ | 移动到当前活动单元格上面的单元格 |
        | Arrow Down ↓ | 移动到当前活动单元格下面的单元格 |
        | Arrow Left ← | 移动到当前活动单元格左边的单元格 |
        | Arrow Right → | 移动到当前活动单元格右边的单元格 |
        | Tab | 移动到当前选中或活动单元格的右侧单元格，如果到最后一列且存在下一行，则从下一行开始移动 |
        | Tab + Shift | 移动到当前选中或活动单元格的左侧单元格，如果到第一列且存在上一行，则从上一行开始移动 |
        | Spacebar | 如果单元格是复选框或单选框则切换勾选状态 |
        | Enter | 取消编辑并移动到当前活动单元格下面的单元格 |
        | Delete | 清空内容 |
        | Backspace | 清空内容并激活选中单元格为编辑状态 |
        | F2 | 激活单元格编辑 |
        | Esc | 取消单元格编辑 |
        | Page Up | 向上翻页滚动 |
        | Page Down | 向下翻页滚动 |
        | Home | 滚动到顶部 |
        | End | 滚动到底部 |
      </pre-code>
    </pre>

    <p class="demo-code">{{ $t('app.body.button.showCode') }}</p>

    <pre>
      <pre-code class="xml">{{ demoCodes[0] }}</pre-code>
      <pre-code class="javascript">{{ demoCodes[1] }}</pre-code>
    </pre>
  </div>
</template>

<script>
export default {
  data () {
    return {
      loading: false,
      validRules: {
        name: [
          { required: true, message: 'app.body.valid.rName' },
          { min: 3, max: 50, message: '名称长度在 3 到 50 个字符' }
        ],
        sex: [
          { required: true, message: '性别必须填写' }
        ]
      },
      demoCodes: []
    }
  },
  created () {
    this.findList()
  },
  methods: {
    findList () {
      this.loading = true
      return new Promise(resolve => {
        setTimeout(() => {
          const tableData = this.mockList(600)
          // 阻断 vue 对大数组的监听，避免 vue 绑定大数据造成短暂的卡顿
          if (this.$refs.xTable) {
            this.$refs.xTable.loadData(tableData)
          }
          resolve()
          this.loading = false
        }, 300)
      })
    },
    mockList (size) {
      const list = []
      for (let index = 0; index < size; index++) {
        list.push({
          name: `名称${index}`,
          sex: '0',
          num: 123,
          age: 18,
          num2: 234,
          rate: 3,
          address: 'shenzhen'
        })
      }
      return list
    },
    async validEvent () {
      const $table = this.$refs.xTable
      const errMap = await $table.validate().catch(errMap => errMap)
      if (errMap) {
        this.$XModal.message({ status: 'error', message: '校验不通过！' })
      } else {
        this.$XModal.message({ status: 'success', message: '校验成功！' })
      }
    },
    fullValidEvent () {
      this.$refs.xTable.fullValidate((errMap) => {
        if (errMap) {
          const msgList = []
          Object.values(errMap).forEach(errList => {
            errList.forEach(params => {
              const { rowIndex, column, rules } = params
              rules.forEach(rule => {
                msgList.push(`第 ${rowIndex + 1} 行 ${column.title} 校验错误：${rule.message}`)
              })
            })
          })
          this.$XModal.message({
            status: 'error',
            slots: {
              default () {
                return [
                  <div class="red" style="max-height: 400px;overflow: auto;">
                    {
                      msgList.map(msg => {
                        return <div>{ msg }</div>
                      })
                    }
                  </div>
                ]
              }
            }
          })
        } else {
          this.$XModal.message({ status: 'success', message: '校验成功！' })
        }
      })
    },
    async selectValidEvent () {
      const $table = this.$refs.xTable
      const selectRecords = $table.getCheckboxRecords()
      if (selectRecords.length > 0) {
        const errMap = await $table.validate(selectRecords).catch(errMap => errMap)
        if (errMap) {
          this.$XModal.message({ status: 'error', message: '校验不通过！' })
        } else {
          this.$XModal.message({ status: 'success', message: '校验成功！' })
        }
      } else {
        this.$XModal.message({ status: 'warning', message: '未选中数据！' })
      }
    },
    insertEvent (row) {
      const xTable = this.$refs.xTable
      const record = {
        checked: false
      }
      xTable.insertAt(record, row).then(({ row }) => {
        xTable.setActiveRow(row)
      })
    },
    getInsertEvent () {
      const insertRecords = this.$refs.xTable.getInsertRecords()
      this.$XModal.alert(insertRecords.length)
    },
    getRemoveEvent () {
      const removeRecords = this.$refs.xTable.getRemoveRecords()
      this.$XModal.alert(removeRecords.length)
    },
    getUpdateEvent () {
      const updateRecords = this.$refs.xTable.getUpdateRecords()
      this.$XModal.alert(updateRecords.length)
    }
  }
}
</script>
