Merge pull request #649 from BabyElias/gsoc-table

KTable - Week 2

docs/pages/playground.vue

@@ -21,6 +21,8 @@
         { text: 'Level 2 ', link: { path: '#' } },
       ]"
     /> -->
+    <KTable :headers="tableHeaders" :rows="tableRows" caption="User Information Table" />
+
 
     <!-- Play around with your component here: -->
 
@@ -32,16 +34,33 @@
 <script>
 
   /*
-    Playground is a Vue component too,
-    so you can also use `data`, `methods`, etc.
-    as usual if helpful
-  */
+     Playground is a Vue component too,
+     so you can also use `data`, `methods`, etc.
+     as usual if helpful
+   */
+  import KTable from '../../lib/KTable/KTable.vue';
+
   export default {
     name: 'Playground',
+    components: {
+      KTable,
+    },
     data() {
-      return {};
+      return {
+        tableHeaders: [
+          { label: 'Name', dataType: 'string' },
+          { label: 'Age', dataType: 'numeric' },
+          { label: 'Birth Date', dataType: 'date' },
+          { label: 'City', dataType: 'string' },
+          { label: 'Misc', dataType: 'others' },
+        ],
+        tableRows: [
+          ['Alice', 25, '1999-05-12', 'New York', 'Example'],
+          ['Bob', 30, '1994-02-22', 'San Francisco', 'Example'],
+          ['Charlie', 35, '1989-12-15', 'Chicago', 'Example'],
+        ],
+      };
     },
-    methods: {},
   };
 
 </script>

lib/KTable/KTable.vue

@@ -0,0 +1,234 @@
+<template>
+
+  <div class="k-table">
+    <table>
+      <caption v-if="caption">
+        {{ caption }}
+      </caption>
+      <thead>
+        <tr>
+          <th
+            v-for="(header, index) in headers"
+            :key="index"
+            tabindex="0"
+            @click="handleSort(index)"
+            @keydown="handleKeydown($event, -1, index)"
+          >
+            {{ header.label }}
+            <span v-if="header.dataType !== 'others'" class="sort-icon">
+              <span v-if="sortKey === index && sortOrder === 'asc'">⬆️</span>
+              <span v-else-if="sortKey === index && sortOrder === 'desc'">⬇️</span>
+              <span v-else>⬍</span>
+            </span>
+          </th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr v-for="(row, rowIndex) in sortedRows" :key="rowIndex">
+          <KTableGridItem
+            v-for="(cell, cellIndex) in row"
+            :key="cellIndex"
+            :content="cell"
+            :align="headers[cellIndex].dataType === 'numeric' ? 'right' : 'left'"
+            :rowIndex="rowIndex"
+            :cellIndex="cellIndex"
+            @keydown="handleKeydown($event, rowIndex, cellIndex)"
+          />
+        </tr>
+      </tbody>
+    </table>
+  </div>
+
+</template>
+
+
+<script>
+
+  import KTableGridItem from './KTableGridItem.vue';
+
+  export default {
+    name: 'KTable',
+    components: {
+      KTableGridItem,
+    },
+    props: {
+      headers: {
+        type: Array,
+        required: true,
+      },
+      rows: {
+        type: Array,
+        required: true,
+      },
+      caption: {
+        type: String,
+        required: false,
+        default: null,
+      },
+    },
+    data() {
+      return {
+        sortKey: null,
+        sortOrder: 'asc',
+      };
+    },
+    computed: {
+      sortedRows() {
+        if (this.sortKey === null) return this.rows;
+
+        const sortedRows = [...this.rows];
+        const sortHeader = this.headers[this.sortKey];
+
+        if (sortHeader.dataType === 'numeric') {
+          sortedRows.sort((a, b) => a[this.sortKey] - b[this.sortKey]);
+        } else if (sortHeader.dataType === 'string' || sortHeader.dataType === 'date') {
+          sortedRows.sort((a, b) => a[this.sortKey].localeCompare(b[this.sortKey]));
+        }
+
+        if (this.sortOrder === 'desc') {
+          sortedRows.reverse();
+        }
+
+        return sortedRows;
+      },
+    },
+    methods: {
+      handleSort(index) {
+        const clickedElement = event.target.tagName.toLowerCase();
+        if (clickedElement !== 'th' || this.headers[index].dataType === 'others') return;
+
+        if (this.sortKey === index) {
+          this.sortOrder = this.sortOrder === 'asc' ? 'desc' : 'asc';
+        } else {
+          this.sortKey = index;
+          this.sortOrder = 'asc';
+        }
+      },
+      handleKeydown(event, rowIndex, cellIndex) {
+        const key = event.key;
+        const totalRows = this.rows.length;
+        const totalCols = this.headers.length;
+
+        let nextRowIndex = rowIndex;
+        let nextCellIndex = cellIndex;
+
+        switch (key) {
+          case 'ArrowUp':
+            if (rowIndex === 0) {
+              this.focusHeader(cellIndex);
+              return;
+            } else if (rowIndex > 0) {
+              nextRowIndex = rowIndex - 1;
+            } else {
+              return;
+            }
+            break;
+          case 'ArrowDown':
+            if (rowIndex === -1) {
+              nextRowIndex = 0;
+            } else {
+              nextRowIndex = (rowIndex + 1) % totalRows;
+            }
+            break;
+          case 'ArrowLeft':
+            if (rowIndex === -1) {
+              nextCellIndex = cellIndex > 0 ? cellIndex - 1 : totalCols - 1;
+            } else if (cellIndex > 0) {
+              nextCellIndex = cellIndex - 1;
+            } else {
+              nextCellIndex = totalCols - 1;
+              nextRowIndex = rowIndex > 0 ? rowIndex - 1 : -1; // Move to the header row if needed
+            }
+            break;
+          case 'ArrowRight':
+            if (rowIndex === -1) {
+              if (cellIndex < totalCols - 1) {
+                nextCellIndex = cellIndex + 1;
+              } else {
+                nextRowIndex = 0;
+                nextCellIndex = 0;
+              }
+            } else if (cellIndex < totalCols - 1) {
+              nextCellIndex = cellIndex + 1;
+            } else {
+              nextCellIndex = 0;
+              nextRowIndex = (rowIndex + 1) % totalRows;
+            }
+            break;
+          case 'Enter':
+            this.handleSort(cellIndex);
+            break;
+          default:
+            return;
+        }
+
+        this.focusCell(nextRowIndex, nextCellIndex);
+        event.preventDefault();
+      },
+
+      focusHeader(cellIndex) {
+        const nextHeader = this.$el.querySelector(`thead th:nth-child(${cellIndex + 1})`);
+        if (nextHeader) {
+          nextHeader.focus();
+        }
+      },
+      focusCell(rowIndex, cellIndex) {
+        let nextCell;
+        if (rowIndex === -1) {
+          nextCell = this.$el.querySelector(`thead th:nth-child(${cellIndex + 1})`);
+        } else {
+          nextCell = this.$el.querySelector(
+            `tbody tr:nth-child(${rowIndex + 1}) td:nth-child(${cellIndex + 1})`
+          );
+        }
+        if (nextCell) {
+          nextCell.focus();
+        }
+      },
+    },
+  };
+
+</script>
+
+
+<style scoped>
+.k-table {
+  margin: 20px;
+}
+
+.k-table table {
+  width: 100%;
+  border: 2px solid #ccc;
+  border-collapse: separate;
+  border-spacing: 0;
+}
+
+.k-table th,
+.k-table td {
+  padding: 15px;
+  text-align: left;
+  position: relative;
+}
+
+.k-table th {
+  background-color: #f2f2f2;
+  border-bottom: 2px solid #ccc;
+  cursor: pointer;
+}
+
+.k-table td {
+  border-bottom: 1px solid #eee;
+}
+
+.k-table th:focus,
+.k-table td:focus {
+  outline: 2px solid #007bff;
+  outline-offset: -2px;
+}
+
+.sort-icon {
+  margin-left: 8px;
+}
+
+
+</style>