feat: Allow setting tooltips(merging to beta)

src/app/components/select/multiple-demo.ts

@@ -52,7 +52,7 @@ export class MultipleDemoComponent implements OnInit {
 
         ngOnInit() {
             this.cities = [
-                { item_id: 1, item_text: 'New Delhi' },
+                { item_id: 1, item_text: 'New Delhi', item_tooltip: 'The capital of India!' },
                 { item_id: 2, item_text: 'Mumbai' },
                 { item_id: 3, item_text: 'Bangalore' },
                 { item_id: 4, item_text: 'Pune' },
@@ -64,6 +64,7 @@ export class MultipleDemoComponent implements OnInit {
                 singleSelection: false,
                 idField: 'item_id',
                 textField: 'item_text',
+                tooltipField: 'item_tooltip',
                 selectAllText: 'Select All',
                 unSelectAllText: 'UnSelect All',
                 itemsShowLimit: 99999,
@@ -112,7 +113,7 @@ export class MultipleDemoComponent implements OnInit {
 
   ngOnInit() {
     this.cities = [
-      { item_id: 1, item_text: 'New Delhi' },
+      { item_id: 1, item_text: 'New Delhi', item_tooltip: 'The capital of India!' },
       { item_id: 2, item_text: 'Mumbai' },
       { item_id: 3, item_text: 'Bangalore', isDisabled: this.disableBangalore },
       { item_id: 4, item_text: 'Pune' },
@@ -128,6 +129,7 @@ export class MultipleDemoComponent implements OnInit {
       defaultOpen: false,
       idField: 'item_id',
       textField: 'item_text',
+      tooltipField: 'item_tooltip',
       selectAllText: 'Select All',
       unSelectAllText: 'UnSelect All',
       enableCheckAll: this.showAll,

src/ng-multiselect-dropdown/src/multi-select.component.html

@@ -3,11 +3,11 @@
     <span tabindex="-1" class="dropdown-btn" (click)="toggleDropdown($event)">
       <span *ngIf="selectedItems.length == 0">{{_placeholder}}</span>
       <span *ngFor="let item of selectedItems; trackBy: trackByFn;let k = index" class="selected-item-container" >
-        <span class="selected-item"  [hidden]="k  > (this._settings.itemsShowLimit-1)">
+        <span class="selected-item"  [hidden]="k  > (this._settings.itemsShowLimit-1)" [attr.title]="item.tooltip">
           <span >{{item.text}}&nbsp;</span>
           <a style="padding-left:2px;color:white" (click)="onItemClick($event,item)">x</a>
         </span>
-       
+
       </span>
       <span [ngClass]="{ 'dropdown-multiselect--active': _settings.defaultOpen }" style="float:right !important;padding-right:4px">
         <span style="padding-right: 15px;" *ngIf="itemShowRemaining()>0">+{{itemShowRemaining()}}</span>
@@ -26,7 +26,7 @@
       </li>
     </ul>
     <ul class="item2" [style.maxHeight]="_settings.maxHeight+'px'">
-      <li *ngFor="let item of _data | multiSelectFilter:filter; let i = index;" (click)="onItemClick($event,item)" class="multiselect-item-checkbox">
+      <li *ngFor="let item of _data | multiSelectFilter:filter; let i = index;" (click)="onItemClick($event,item)" class="multiselect-item-checkbox" [attr.title]="item.tooltip">
         <input type="checkbox" [attr.aria-label]="item.text" [checked]="isSelected(item)" [disabled]="disabled || (isLimitSelectionReached() && !isSelected(item)) || item.isDisabled" />
         <div>{{item.text}}</div>
       </li>

src/ng-multiselect-dropdown/src/multi-select.component.scss

@@ -21,15 +21,16 @@ $disable-background-color: #eceeef;
     .selected-item-container {
       display: flex;
       float: left;
+      max-width: 93%;
       .selected-item{
         border: 1px solid $base-color;
         margin-right: 4px;
+        margin-bottom: 4px;
         background: $base-color;
         padding: 0px 5px;
         color: #fff;
         border-radius: 2px;
-        float: left;        
-        max-width: 100px;      
+        float: left;
         span {
           overflow: hidden;
           text-overflow: ellipsis;

src/ng-multiselect-dropdown/src/multiselect.component.ts

@@ -30,6 +30,7 @@ export class MultiSelectComponent implements ControlValueAccessor {
     singleSelection: false,
     idField: "id",
     textField: "text",
+    tooltipField: "tooltip",
     disabledField: "isDisabled",
     enableCheckAll: true,
     selectAllText: "Select All",
@@ -76,15 +77,7 @@ export class MultiSelectComponent implements ControlValueAccessor {
       const firstItem = value[0];
       this._sourceDataType = typeof firstItem;
       this._sourceDataFields = this.getFields(firstItem);
-      this._data = value.map((item: any) =>
-        typeof item === "string" || typeof item === "number"
-          ? new ListItem(item)
-          : new ListItem({
-              id: item[this._settings.idField],
-              text: item[this._settings.textField],
-              isDisabled: item[this._settings.disabledField]
-            })
-      );
+      this._data = value.map(item => this.deobjectify(item));
     }
   }
 
@@ -141,30 +134,13 @@ export class MultiSelectComponent implements ControlValueAccessor {
       if (this._settings.singleSelection) {
         try {
           if (value.length >= 1) {
-            const firstItem = value[0];
-            this.selectedItems = [
-              typeof firstItem === "string" || typeof firstItem === "number"
-                ? new ListItem(firstItem)
-                : new ListItem({
-                    id: firstItem[this._settings.idField],
-                    text: firstItem[this._settings.textField],
-                    isDisabled: firstItem[this._settings.disabledField]
-                  })
-            ];
+            this.selectedItems = [ this.deobjectify(value[0]) ];
           }
         } catch (e) {
           // console.error(e.body.msg);
         }
       } else {
-        const _data = value.map((item: any) =>
-          typeof item === "string" || typeof item === "number"
-            ? new ListItem(item)
-            : new ListItem({
-                id: item[this._settings.idField],
-                text: item[this._settings.textField],
-                isDisabled: item[this._settings.disabledField]
-              })
-        );
+        const _data = value.map((item: any) => this.deobjectify(item));
         if (this._settings.limitSelection > 0) {
           this.selectedItems = _data.splice(0, this._settings.limitSelection);
         } else {
@@ -285,6 +261,9 @@ export class MultiSelectComponent implements ControlValueAccessor {
       if (this._sourceDataFields.includes(this._settings.disabledField)) {
         obj[this._settings.disabledField] = val.isDisabled;
       }
+      if (this._sourceDataFields.includes(this._settings.tooltipField)) {
+        obj[this._settings.tooltipField] = val.tooltip;
+      }
       return obj;
     }
     if (this._sourceDataType === 'number') {
@@ -294,6 +273,19 @@ export class MultiSelectComponent implements ControlValueAccessor {
     }
   }
 
+  private deobjectify(item: any) {
+    if (typeof item === "string" || typeof item === "number") {
+      return new ListItem(item);
+    } else {
+      return new ListItem({
+        id: item[this._settings.idField],
+        text: item[this._settings.textField],
+        tooltip: item[this._settings.tooltipField],
+        isDisabled: item[this._settings.disabledField]
+      })
+    }
+  }
+
   toggleDropdown(evt) {
     evt.preventDefault();
     if (this.disabled && this._settings.singleSelection) {

src/ng-multiselect-dropdown/src/multiselect.model.ts

@@ -2,6 +2,7 @@ export interface IDropdownSettings {
   singleSelection?: boolean;
   idField?: string;
   textField?: string;
+  tooltipField?: string;
   disabledField?: string;
   enableCheckAll?: boolean;
   selectAllText?: string;
@@ -23,6 +24,7 @@ export interface IDropdownSettings {
 export class ListItem {
   id: String | number;
   text: String | number;
+  tooltip?: String | undefined;
   isDisabled?: boolean;
 
   public constructor(source: any) {
@@ -33,6 +35,7 @@ export class ListItem {
     if (typeof source === 'object') {
       this.id = source.id;
       this.text = source.text;
+      this.tooltip = source.tooltip;
       this.isDisabled = source.isDisabled;
     }
   }

src/ng-multiselect-dropdown/test/multi-select-tooltip.component.spec.ts

@@ -0,0 +1,69 @@
+import { Component, ViewChild } from '@angular/core';
+import { ComponentFixture, fakeAsync } from '@angular/core/testing';
+import { MultiSelectComponent } from './../src/multiselect.component';
+import { createTestingModule } from './helper';
+
+@Component({
+  template: ``
+})
+class Ng2MultiSelectDropdownMultipleSelectWithDisableItemComponent {
+  @ViewChild(MultiSelectComponent, { static: false })
+  select: MultiSelectComponent;
+  cities = [
+    { item_id: 1, item_text: 'Mumbai' },
+    { item_id: 2, item_text: 'Bangalore', tooltip_text: undefined },
+    { item_id: 3, item_text: 'Pune', tooltip_text: '' },
+    { item_id: 4, item_text: 'Navsari' },
+    { item_id: 5, item_text: 'New Delhi', tooltip_text: 'The capital of India!' }
+  ];
+  selectedItem = [{ item_id: 1, item_text: 'Mumbai' }, { item_id: 4, item_text: 'Navsari' }];
+  dropdownSettings = {
+    singleSelection: false,
+    idField: 'item_id',
+    textField: 'item_text',
+    tooltipField: 'item_tooltip',
+    selectAllText: 'Select All',
+    unSelectAllText: 'UnSelect All',
+    badgeShowLimit: 3,
+    disabled: false,
+    allowSearchFilter: true,
+    closeDropDownOnSelection: true
+  };
+}
+describe('Multiple Selection:tooltip', () => {
+  let fixture: ComponentFixture<Ng2MultiSelectDropdownMultipleSelectWithDisableItemComponent>;
+  beforeEach(fakeAsync(() => {
+    fixture = createTestingModule(
+      Ng2MultiSelectDropdownMultipleSelectWithDisableItemComponent,
+      `<div class='container'>
+          <ng-multiselect-dropdown name="city" [data]="cities"
+      [(ngModel)]="selectedItem" [settings]="dropdownSettings"
+      (onSelect)="onItemSelect($event)"
+      [disabled]="disabled">
+    </ng-multiselect-dropdown>
+    </div>`
+    );
+  }));
+  it('should show the tooltips', fakeAsync(() => {
+    let selCheckBoxes: HTMLLIElement[];
+    const sel = fixture.nativeElement.querySelectorAll('.multiselect-item-checkbox');
+    selCheckBoxes = Array.from(sel);
+    // Mumbai
+    expect(selCheckBoxes[1].querySelector('div').textContent).toContain('Mumbai');
+    expect(selCheckBoxes[1].title).toBe('');
+    // Bangalore
+    expect(selCheckBoxes[2].querySelector('div').textContent).toContain('Bangalore');
+    expect(selCheckBoxes[2].title).toBe('');
+    // Pune
+    expect(selCheckBoxes[3].querySelector('div').textContent).toContain('Pune');
+    expect(selCheckBoxes[3].title).toBe('');
+    // Navsari
+    expect(selCheckBoxes[4].querySelector('div').textContent).toContain('Navsari');
+    expect(selCheckBoxes[4].title).toBe('The capital of India!');
+    // New Delhi
+    expect(selCheckBoxes[5].querySelector('div').textContent).toContain('New Delhi');
+    expect(selCheckBoxes[5].title).toBe('');
+
+    expect(fixture.componentInstance.selectedItem.length).toEqual(2);
+  }));
+});