Add checkbox selector to datatable

app/assets/javascripts/repositories/index.js

@@ -1,13 +1,15 @@
-/* global DataTableHelpers */
+/* global DataTableHelpers DataTableCheckboxes */
 (function() {
   'use strict';
 
   var REPOSITORIES_TABLE;
+  var CHECKBOX_SELECTOR;
 
   function initRepositoriesDataTable(tableContainer, archived = false) {
     var tableTemplate = archived ? $('#archivedRepositoriesListTable').html() : $('#activeRepositoriesListTable').html();
     $.get($(tableTemplate).data('source'), function(data) {
       if (REPOSITORIES_TABLE) REPOSITORIES_TABLE.destroy();
+      CHECKBOX_SELECTOR = null;
       $('.content-body').html(tableTemplate);
       REPOSITORIES_TABLE = $(tableContainer).DataTable({
         aaData: data,
@@ -35,14 +37,23 @@
             return `<a href="${row.repositoryUrl}">${value}</a>`;
           }
         }],
-
-        fnInitComplete: function() {
-          var dataTableWrapper = $(tableContainer).closest('.dataTables_wrapper');
+        fnInitComplete: function(e) {
+          var dataTableWrapper = $(e.nTableWrapper);
+          CHECKBOX_SELECTOR = new DataTableCheckboxes(dataTableWrapper, {
+            checkboxSelector: '.repository-row-selector',
+            selectAllSelector: '.select-all-checkbox'
+          });
           DataTableHelpers.initLengthApearance(dataTableWrapper);
           DataTableHelpers.initSearchField(dataTableWrapper);
           $('.content-body .toolbar').html($('#repositoriesListButtons').html());
           dataTableWrapper.find('.main-actions, .pagination-row').removeClass('hidden');
           $('.create-new-repository').initializeModal('#create-repo-modal');
+        },
+        drawCallback: function() {
+          if (CHECKBOX_SELECTOR) CHECKBOX_SELECTOR.checkSelectAllStatus();
+        },
+        rowCallback: function(row) {
+          if (CHECKBOX_SELECTOR) CHECKBOX_SELECTOR.checkRowStatus(row);
         }
       });
     });

app/assets/javascripts/sitewide/datatable_helpers.js

@@ -35,3 +35,93 @@ var DataTableHelpers = (function() {
     }
   };
 }());
+
+class DataTableCheckboxes {
+
+  /* config = {
+    checkboxSelector: selector for checkboxes,
+    selectAllSelector: selector for select all checkbox
+  }*/
+
+  constructor(tableWrapper, config) {
+    this.selectedRows = [];
+    this.tableWrapper = $(tableWrapper);
+    this.config = config;
+
+    this.#initCheckboxes();
+    this.#initSelectAllCheckbox();
+  }
+
+  checkRowStatus = (row) => {
+    var checkbox = $(row).find(this.config.checkboxSelector);
+    if (this.selectedRows.includes(row.id)) {
+      $(row).addClass('selected');
+      checkbox.attr('checked', true);
+    } else {
+      $(row).removeClass('selected');
+      checkbox.attr('checked', false);
+    }
+  }
+
+  checkSelectAllStatus = () => {
+    var checkboxes = this.tableWrapper.find(this.config.checkboxSelector);
+    var selectedCheckboxes = this.tableWrapper.find(this.config.checkboxSelector + ':checked');
+    var selectAllCheckbox = this.tableWrapper.find(this.config.selectAllSelector);
+    selectAllCheckbox.prop('indeterminate', false);
+    if (selectedCheckboxes.length === 0) {
+      selectAllCheckbox.prop('checked', false);
+    } else if (selectedCheckboxes.length === checkboxes.length) {
+      selectAllCheckbox.prop('checked', true);
+    } else {
+      selectAllCheckbox.prop('indeterminate', true);
+    }
+  }
+
+  clearSelection = () => {
+    var rows = this.tableWrapper.find('tbody tr');
+    this.selectedRows = [];
+    $.each(rows, (i, row) => {
+      $(row).removeClass('selected');
+      $(row).find(this.config.checkboxSelector).attr('checked', false);
+    });
+    this.checkSelectAllStatus();
+  }
+
+  // private methods
+
+  #initCheckboxes = () => {
+    this.tableWrapper.on('click', '.table tbody tr', (e) => {
+      var checkbox = $(e.currentTarget).find(this.config.checkboxSelector);
+      checkbox.prop('checked', !checkbox.prop('checked'));
+      this.#selectRow(e.currentTarget);
+    }).on('click', this.config.checkboxSelector, (e) => {
+      this.#selectRow($(e.currentTarget).closest('tr')[0]);
+      e.stopPropagation();
+    });
+  }
+
+  #selectRow = (row) => {
+    var id = row.id;
+    if (this.selectedRows.includes(id)) {
+      this.selectedRows.splice(this.selectedRows.indexOf(id), 1);
+    } else {
+      this.selectedRows.push(id);
+    }
+    $(row).toggleClass('selected');
+    this.checkSelectAllStatus();
+  }
+
+  #initSelectAllCheckbox = () => {
+    this.tableWrapper.on('click', this.config.selectAllSelector, (e) => {
+      var selectAllCheckbox = $(e.currentTarget);
+      var rows = this.tableWrapper.find('tbody tr');
+      $.each(rows, (i, row) => {
+        var checkbox = $(row).find(this.config.checkboxSelector);
+        if (checkbox.prop('checked') === selectAllCheckbox.prop('checked')) return;
+
+        checkbox.prop('checked', !checkbox.prop('checked'));
+        this.#selectRow(row);
+      });
+    });
+  }
+}

app/helpers/repositories_datatable_helper.rb

@@ -8,7 +8,7 @@ module RepositoriesDatatableHelper
     repositories = repositories.includes(:repository_rows, :team, :created_by, :archived_by)
     repositories.each do |repository|
       result.push(
-        'DT_RepositoryId': repository.id,
+        'DT_RowId': repository.id,
         '1': escape_input(repository.name),
         '2': repository.repository_rows.size,
         '3': repository.shared_with?(team),

app/views/repositories/index.html.erb

@@ -32,7 +32,7 @@
       <tr>
         <th>
           <div class="sci-checkbox-container">
-            <input value="1" type="checkbox" class="sci-checkbox">
+            <input value="1" type="checkbox" class="sci-checkbox select-all-checkbox">
             <span class="sci-checkbox-label"></span>
           </div>
         </th>
@@ -57,7 +57,7 @@
       <tr>
         <th>
           <div class="sci-checkbox-container">
-            <input value="1" type="checkbox" class="sci-checkbox">
+            <input value="1" type="checkbox" class="sci-checkbox select-all-checkbox">
             <span class="sci-checkbox-label"></span>
           </div>
         </th>