Table: add single selection back. Add current-change event & highlight-current-row event.

CHANGELOG.md

@@ -13,6 +13,7 @@
 - 修复 Slider 在 Form 中的显示问题
 - 修复 Upload 在 onSuccess、onError 钩子无法拿到服务端返回信息的问题
 - 改善 tabs 现在支持动态更新
+- Table 新增 highlightCurrentRow 属性、新增 current-change 事件
 
 #### 非兼容性更新
 

examples/docs/zh-cn/table.md

@@ -898,6 +898,7 @@
 | stripe | 是否为斑马纹 table | boolean | — | false |
 | border | 是否带有纵向边框 | boolean | — | false |
 | fit | 列的宽度是否自撑开 | boolean | — | true |
+| highlight-current-row | 是否要高亮当前行 | boolean | - | false |
 | row-class-name | 行的 className 的回调。 | Function(row, index) | - | - |
 | row-key | 行数据的 Key，用来优化 Table 的渲染；在使用 reserve-selection 功能的情况下，该属性是必填的 | Function(row), String | - | - |
 
@@ -912,6 +913,7 @@
 | cell-click | 当某个单元格被点击时会触发该事件 | row, column, cell, event |
 | row-click | 当某一行被点击时会触发该事件 | row, event |
 | sort-change | 当表格的排序条件发生变化的时候会触发该事件 | { column, prop, order } |
+| current-change | 当表格的当前行发生变化的时候会触发该事件，如果要高亮当前行，请打开表格的 highlight-current-row 属性 | { column, prop, order } |
 
 ### Table Methods
 | 方法名 | 说明 | 参数 |

packages/table/src/table-body.js

@@ -9,7 +9,8 @@ export default {
       required: true
     },
     rowClassName: [String, Function],
-    fixed: String
+    fixed: String,
+    highlight: Boolean
   },
 
   render(h) {
@@ -115,6 +116,11 @@ export default {
         classes.push(rowClassName.apply(null, [row, index]) || '');
       }
 
+      const currentRow = this.store.states.currentRow;
+      if (this.highlight && currentRow === row) {
+        classes.push('current-row');
+      }
+
       return classes.join(' ');
     },
 
@@ -161,6 +167,8 @@ export default {
         }
       }
 
+      this.store.commit('setCurrentRow', row);
+
       table.$emit('row-click', row, event);
     },
 

packages/table/src/table-store.js

@@ -74,6 +74,7 @@ const TableStore = function(table, initialState = {}) {
     selection: [],
     reserveSelection: false,
     selectable: null,
+    currentRow: null,
     hoverRow: null,
     filters: {}
   };
@@ -89,6 +90,9 @@ TableStore.prototype.mutations = {
   setData(states, data) {
     states._data = data;
     states.data = sortData((data || []), states);
+
+    this.updateCurrentRow();
+
     const selection = states.selection;
 
     if (!states.reserveSelection) {
@@ -186,13 +190,23 @@ TableStore.prototype.mutations = {
     states.hoverRow = row;
   },
 
+  setCurrentRow(states, row) {
+    const oldCurrentRow = states.currentRow;
+    states.currentRow = row;
+
+    if (oldCurrentRow !== row) {
+      this.table.$emit('current-change', row, oldCurrentRow);
+    }
+  },
+
   rowSelectedChanged(states, row) {
     const changed = toggleRowSelection(states, row);
     const selection = states.selection;
 
     if (changed) {
-      this.table.$emit('selection-change', selection);
-      this.table.$emit('select', selection, row);
+      const table = this.table;
+      table.$emit('selection-change', selection);
+      table.$emit('select', selection, row);
     }
 
     this.updateAllSelected();
@@ -216,10 +230,11 @@ TableStore.prototype.mutations = {
       }
     });
 
+    const table = this.table;
     if (selectionChanged) {
-      this.table.$emit('selection-change', selection);
+      table.$emit('selection-change', selection);
     }
-    this.table.$emit('select-all', selection);
+    table.$emit('select-all', selection);
     states.isAllSelected = value;
   })
 };
@@ -295,6 +310,21 @@ TableStore.prototype.scheduleLayout = function() {
   this.table.debouncedLayout();
 };
 
+TableStore.prototype.updateCurrentRow = function() {
+  const states = this.states;
+  const table = this.table;
+  const data = states.data || [];
+  const oldCurrentRow = states.currentRow;
+
+  if (data.indexOf(oldCurrentRow) === -1) {
+    states.currentRow = null;
+
+    if (states.currentRow !== oldCurrentRow) {
+      table.$emit('current-change', null, oldCurrentRow);
+    }
+  }
+};
+
 TableStore.prototype.commit = function(name, ...args) {
   const mutations = this.mutations;
   if (mutations[name]) {

packages/table/src/table.vue

@@ -17,6 +17,7 @@
         :store="store"
         :layout="layout"
         :row-class-name="rowClassName"
+        :highlight="highlightCurrentRow"
         :style="{ width: layout.bodyWidth ? layout.bodyWidth - (layout.scrollY ? layout.gutterWidth : 0 ) + 'px' : '' }">
       </table-body>
       <div class="el-table__empty-block" v-if="!data || data.length === 0">
@@ -47,6 +48,7 @@
           fixed="left"
           :store="store"
           :layout="layout"
+          :highlight="highlightCurrentRow"
           :row-class-name="rowClassName"
           :style="{ width: layout.fixedWidth ? layout.fixedWidth + 'px' : '' }">
         </table-body>
@@ -78,6 +80,7 @@
           :store="store"
           :layout="layout"
           :row-class-name="rowClassName"
+          :highlight="highlightCurrentRow"
           :style="{ width: layout.rightFixedWidth ? layout.rightFixedWidth + 'px' : '' }">
         </table-body>
       </div>
@@ -130,6 +133,8 @@
 
       rowClassName: [String, Function],
 
+      highlightCurrentRow: Boolean,
+
       emptyText: {
         type: String,
         default: $t('el.table.emptyText')

packages/theme-default/src/table.css

@@ -330,7 +330,7 @@
         background-color: #eff2f7;
       }
 
-      tr.current-row {
+      tr.current-row td {
         background: #eff7ff;
       }
     }

test/unit/specs/table.spec.js

@@ -261,7 +261,7 @@ describe('Table', () => {
         },
 
         data() {
-          return { result: '' };
+          return { result: '', testData: this.testData };
         }
       }, true);
     };
@@ -358,6 +358,32 @@ describe('Table', () => {
         done();
       }, DELAY);
     });
+
+    it('current-change', done => {
+      const vm = createTable('current-change');
+
+      setTimeout(_ => {
+        const cell = vm.$el.querySelectorAll('.el-table__body .cell')[2]; // first row
+
+        triggerEvent(cell.parentNode.parentNode, 'click');
+        expect(vm.result).to.length(2); // currentRow, oldCurrentRow
+        expect(vm.result[0]).to.have.property('name').to.equal(getTestData()[0].name);
+        expect(vm.result[1]).to.equal(null);
+
+        // clear data => current-change should fire again.
+        const oldRow = vm.result[0];
+        vm.testData = [];
+
+        setTimeout(() => {
+          expect(vm.result).to.length(2); // currentRow, oldCurrentRow
+          expect(vm.result[0]).to.equal(null);
+          expect(vm.result[1]).to.equal(oldRow);
+
+          destroyVM(vm);
+          done();
+        }, DELAY);
+      }, DELAY);
+    });
   });
 
   describe('column attributes', () => {
@@ -825,4 +851,37 @@ describe('Table', () => {
       }, DELAY);
     }, DELAY);
   });
+
+  it('highlight-current-row', done => {
+    const vm = createVue({
+      template: `
+        <el-table :data="testData" highlight-current-row>
+          <el-table-column prop="name" label="片名" />
+          <el-table-column prop="release" label="发行日期" />
+          <el-table-column prop="director" label="导演" />
+          <el-table-column prop="runtime" label="时长（分）" />
+        </el-table>
+      `,
+
+      created() {
+        this.testData = getTestData();
+      }
+    }, true);
+    setTimeout(_ => {
+      const tr = vm.$el.querySelector('.el-table__body-wrapper tbody tr');
+      triggerEvent(tr, 'click', true, false);
+      setTimeout(_ => {
+        expect(tr.classList.contains('current-row')).to.be.true;
+        const rows = vm.$el.querySelectorAll('.el-table__body-wrapper tbody tr');
+
+        triggerEvent(rows[2], 'click', true, false);
+        setTimeout(_ => {
+          expect(tr.classList.contains('current-row')).to.be.false;
+          expect(rows[2].classList.contains('current-row')).to.be.true;
+          destroyVM(vm);
+          done();
+        }, DELAY);
+      }, DELAY);
+    }, DELAY);
+  });
 });