<template>
  <div class="print-template-detail">
    <div class="print-template-detail__body">
      <div class="system-view-nav">
        <el-scrollbar class="left-scrollbar">
          <div class="NCC-common-title">
            <h2>表单字段</h2>
          </div>
          <el-tree :data="newData" default-expand-all :expand-on-click-node="false"
            :props="defaultProps" @node-click="handleNodeClick"></el-tree>
          <!-- <div class="NCC-common-title">
            <h2>系统字段</h2>
          </div>
          <el-tree :data="systemData" default-expand-all :expand-on-click-node="false"
            :props="defaultProps" @node-click="handleNodeClick"></el-tree> -->
        </el-scrollbar>
      </div>
      <div class="system-view-content">
        <ts-designer-tinymce v-model="content" ref="createTinymce" :height="richHeight"
          :init="getEditConfig()" class="rich-txt" />
      </div>
    </div>
  </div>
</template>

<script>
import TsDesignerTinymce from './ts-designer-tinymce'
export default {
  name: 'tsPrintTemplater',
  components: { TsDesignerTinymce },
  props: {
    value: String,
    treeData: {
      type: Array,
      default: () => []
    }
  },
  data() {
    return {
      tabs: [],
      menuList: [],
      init: {},
      menuIndex: '',
      content: '',
      activeTab: '',
      richHeight: document.documentElement.clientHeight - 42,
      systemData: [
        {
          fieldName: '打印人员',
          field: 'systemPrinter',
        },
        {
          fieldName: '打印时间',
          field: 'systemPrintTime',
        },
        {
          fieldName: '审批内容',
          field: 'systemApprovalContent',
        }
      ],
      defaultProps: {
        children: 'children',
        label: 'fieldName'
      }
    }
  },
  watch: {
    value: {
      handler(val) {
        if (val != this.content) {
          this.content = val
        }
      },
      immediate: true,
      deep: true
    },
    content() {
      this.$emit('input', this.content)
    },
  },
  computed: {
    editor() {
      return this.$refs.createTinymce.editor
    },
    newData() {
      return this.treeData
    }
  },
  methods: {
    handleNodeClick(item, node) {
      if (item.children != null && item.children.length > 0) {
        return
      }
      const tableParent = this.getCurrentParentByTag('table[data-wk-table-tag="table"]')
      if (!tableParent) {
        this.editor.insertContent(this.getSpanNode(item, node))
        this.content = this.editor.getContent({ format: 'html' })
      }
    },
    getEditConfig() {
      return {
        menubar: false,
        toolbar_sticky: true,
        statusbar: false,
        // extended_valid_elements: 'span[class|title|wktag|style|contenteditable]',
        content_style: `html {height: 100%; background: #ebeef5;padding: 20px 0;box-sizing: border-box;}
        body {
          font-family: simsun, serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
          padding: 40px 30px;
          width: 600px;
          margin: 0 auto !important;
          border: 1px solid rgb(210, 213, 216);
          background: white;
          min-height: 100%;
          box-sizing: border-box;
        }
        .wk-tiny-color--customer {
          color: #005AF3;
        }
        .wk-tiny-color--contacts {
          color: #1CB24C;
        }
        .wk-tiny-color--business {
          color: #FF852F;
        }
        .wk-tiny-color--contract {
          color: #FF4A43;
        }
        .wk-tiny-color--receivables {
          color: #FFAE46;
        }
        .wk-tiny-color--product {
          color: #00D0D4;
        }
        .wk-tiny-color--common {
          color: #2362FB;
        }
        p { margin: 5px 0; line-height: 1.5;}`,
        // content_css: ['/static/tinymce/css/tiny-wk-colors.css', '/static/tinymce/css/tiny-wk-word.css'],
        table_advtab: false,
        table_cell_advtab: false,
        table_row_advtab: false,
        setup: (editor) => {
          editor.on('init', function () {
            editor.execCommand('mceFocus')
          })
          editor.on('keydown', (e) => {
            this.selectNodes = null
            if (e.keyCode === 8 /* Backspace key */ || /* del key */ e.keyCode == 46) {
              const currentNode = editor.selection.getNode()
              if (currentNode.getAttribute('data-wk-table-td-tag') === 'value') {
                e.preventDefault()
                return false
              } else if (currentNode.nodeName == 'SPAN') {
                if (currentNode.hasAttribute('contenteditable')) {
                  e.preventDefault()
                  editor.dom.remove(currentNode)
                  return false
                } else {
                  const farterSpan = this.getCurrentParentByTag('span[contenteditable]')
                  if (farterSpan) {
                    e.preventDefault()
                    editor.dom.remove(farterSpan)
                    return false
                  }
                }
              }
            } else if (e.keyCode == '65' && (e.metaKey || e.ctrlKey)) { // 全选
              this.selectNodes = editor.selection.getNode()
              this.setSpanEditAttr(this.selectNodes, true)
            } else {
              // table 里面不允许写内容
              const currentNode = editor.selection.getNode()
              if (currentNode.getAttribute('data-wk-table-td-tag') === 'value') {
                // 只允许输入上下左右
                if (e.keyCode !== 37 && e.keyCode !== 38 && e.keyCode !== 39 && e.keyCode !== 40) {
                  e.preventDefault()
                  return false
                }
              } else if (currentNode.nodeName == 'SPAN') {
                if (currentNode.hasAttribute('contenteditable')) {
                  if (currentNode.getAttribute('contenteditable')) {
                    e.preventDefault()
                    currentNode.setAttribute('contenteditable', false)
                    return false
                  }
                  return false
                } else {
                  const farterSpan = this.getCurrentParentByTag('span[contenteditable]')
                  if (farterSpan) {
                    if (farterSpan.getAttribute('contenteditable')) {
                      e.preventDefault()
                      farterSpan.setAttribute('contenteditable', false)
                      return false
                    }
                    return false
                  }
                }
              }

              if (e.keyCode == 37 && e.keyCode == 38 && e.keyCode == 39 && e.keyCode == 40) {
                // console.log('上下左右')
                this.cancelSpanEdit()
              }
            }
          })

          editor.on('mousedown', () => {
            this.cancelSpanEdit()
          })

          editor.on('mouseup', (e) => {
            const selection = editor.selection.getSel()
            // console.log(selection.isCollapsed, selection.anchorNode == selection.focusNode, selection.anchorOffset == selection.focusOffset)

            if (e.target.hasAttribute('contenteditable') && selection.anchorOffset == 1 && selection.anchorOffset == 1) {
              // 忽略
            } else if (e.target.hasAttribute('contenteditable') && selection.isCollapsed) {
              this.cancelSpanEdit()
            } else {
              if (!selection.isCollapsed) {
                this.selectNodes = editor.selection.getNode()
                this.setSpanEditAttr(this.selectNodes, true)
              } else {
                this.cancelSpanEdit()
              }
            }
          })
        }
      }
    },
    cancelSpanEdit() {
      if (this.selectNodes) {
        setTimeout(() => {
          const selection = this.editor.selection.getSel()
          if (!selection.isCollapsed) {
            this.setSpanEditAttr(this.selectNodes, false)
            this.selectNodes = null
          }
        }, 300)
      }
    },
    setSpanEditAttr(node, canEdit) {
      if (node && node.hasAttribute('contenteditable')) {
        if (node.getAttribute('contenteditable') != canEdit) {
          node.setAttribute('contenteditable', canEdit)
        }
      }

      if (node && node.children) {
        for (let index = 0; index < node.children.length; index++) {
          const element = node.children[index]
          if (element.children) {
            this.setSpanEditAttr(element, canEdit)
          } else if (element.hasAttribute('contenteditable')) {
            if (node.getAttribute('contenteditable') != canEdit) {
              element.setAttribute('contenteditable', canEdit)
            }
          }
        }
      }
    },
    getCurrentParentByTag(tag) {
      return this.editor.dom.getParent(this.editor.selection.getNode(), tag)
    },
    getSpanNode(item, node) {
      const parent = (node.parent.data != null && node.parent.data.field != null) ? node.parent.data.field : 'null'
      return `<span data-tag="${parent}.${item.field}" class="wk-print-tag-wukong ${this.getSpanColorClass()}" contenteditable="false">{${item.field}}</span>`
    },
    getSpanColorClass() {
      const color = ['customer', 'contacts', 'business', 'contract', 'receivables', 'product'].includes(this.activeTab) ? this.activeTab : 'common'
      return `wk-tiny-color--${color}`
    }
  }
}
</script>

<style lang="scss" scoped>
.print-template-detail {
  height: 100%;
  display: flex;

  &__body {
    flex: 1;
    position: relative;
    display: flex;
    overflow: hidden;
  }
}
.system-view-nav {
  width: 220px;
  position: relative;
  background: #fff;
  margin-right: 10px;
  .left-scrollbar {
    height: 100%;
    ::v-deep .el-scrollbar__wrap {
      overflow-x: hidden;
    }
  }
  .NCC-common-title {
    padding: 0 10px;
    margin-bottom: 10px;
    h2 {
      font-weight: 600;
    }
  }
}
.system-view-content {
  flex: 1;
  background: #fff;
  display: flex;
  flex-direction: column;
  overflow-x: auto;
  ::v-deep .tox-tinymce {
    border: none;
  }
}
.xr-reminder {
  ::v-deep .reminder-body {
    align-items: stretch;
    width: 100%;
    height: 35px;
    line-height: 35px;
    border-radius: 0;
  }
}
</style>
