feat(select): select search cosmetic and behavior fixes

packages/cdk/overlay/keyboard/overlay-keyboard-dispatcher.spec.ts

@@ -72,7 +72,7 @@ describe('OverlayKeyboardDispatcher', () => {
         expect(overlayTwoSpy).toHaveBeenCalled();
     });
 
-    it('should dispatch keyboard events when propagation is stopped', () => {
+    it('should not dispatch keyboard events when propagation is stopped', () => {
         const overlayRef = overlay.create();
         const spy = jasmine.createSpy('keyboard event spy');
         const button = document.createElement('button');
@@ -84,7 +84,7 @@ describe('OverlayKeyboardDispatcher', () => {
         keyboardDispatcher.add(overlayRef);
         dispatchKeyboardEvent(button, 'keydown', ESCAPE);
 
-        expect(spy).toHaveBeenCalled();
+        expect(spy).not.toHaveBeenCalled();
 
         button.parentNode!.removeChild(button); //tslint:disable-line
     });
@@ -140,10 +140,10 @@ describe('OverlayKeyboardDispatcher', () => {
         spyOn(body, 'removeEventListener');
 
         keyboardDispatcher.add(overlayRef);
-        expect(body.addEventListener).toHaveBeenCalledWith('keydown', jasmine.any(Function), true);
+        expect(body.addEventListener).toHaveBeenCalledWith('keydown', jasmine.any(Function));
 
         overlayRef.dispose();
-        expect(body.removeEventListener).toHaveBeenCalledWith('keydown', jasmine.any(Function), true);
+        expect(body.removeEventListener).toHaveBeenCalledWith('keydown', jasmine.any(Function));
     });
 
 });

packages/cdk/overlay/keyboard/overlay-keyboard-dispatcher.ts

@@ -37,7 +37,7 @@ export class OverlayKeyboardDispatcher implements OnDestroy {
     add(overlayRef: OverlayRef): void {
         // Lazily start dispatcher once first overlay is added
         if (!this._isAttached) {
-            this._document.body.addEventListener('keydown', this._keydownListener, true);
+            this._document.body.addEventListener('keydown', this._keydownListener);
             this._isAttached = true;
         }
 
@@ -61,7 +61,7 @@ export class OverlayKeyboardDispatcher implements OnDestroy {
     /** Detaches the global keyboard event listener. */
     private _detach() {
         if (this._isAttached) {
-            this._document.body.removeEventListener('keydown', this._keydownListener, true);
+            this._document.body.removeEventListener('keydown', this._keydownListener);
             this._isAttached = false;
         }
     }

packages/mosaic-dev/select/module.ts

@@ -37,10 +37,9 @@ export class DemoComponent implements OnInit {
     multipleSearchCtrl: FormControl = new FormControl();
     filteredMultipleOptions: Observable<string[]>;
 
-    allOptions = OPTIONS;
     optionCounter = 0;
 
-    private options: string[] = OPTIONS;
+    options: string[] = OPTIONS.sort();
 
     ngOnInit(): void {
         this.filteredOptions = merge(

packages/mosaic-dev/select/template.html

@@ -39,14 +39,13 @@
                 <mc-cleaner></mc-cleaner>
             </mc-form-field>
 
-            <mc-option value="StickedOption">Sticked Option</mc-option>
             <mc-option *ngFor="let option of filteredOptions | async" [value]="option">{{ option }}</mc-option>
         </mc-select>
     </mc-form-field>
 
     <br><br>
 
-    <button mc-button (click)="optionCounter = optionCounter + 1;allOptions.push(optionCounter.toString())">add option</button>
+    <button mc-button (click)="optionCounter = optionCounter + 1;options.push(optionCounter.toString())">add option</button>
 
     <br><br>
 
@@ -60,7 +59,6 @@
                 <mc-cleaner></mc-cleaner>
             </mc-form-field>
 
-            <mc-option value="StickedOption">Sticked Option</mc-option>
             <mc-option *ngFor="let option of filteredMultipleOptions | async" [value]="option">{{ option }}</mc-option>
         </mc-select>
     </mc-form-field>

packages/mosaic/form-field/form-field.ts

@@ -92,6 +92,8 @@ export class McFormField extends _McFormFieldMixinBase implements
 
     hovered: boolean = false;
 
+    canCleanerClearByEsc: boolean = true;
+
     constructor(public _elementRef: ElementRef, private _changeDetectorRef: ChangeDetectorRef) {
         super(_elementRef);
     }
@@ -155,7 +157,7 @@ export class McFormField extends _McFormFieldMixinBase implements
 
     onKeyDown(event: KeyboardEvent): void {
         // tslint:disable-next-line:deprecation
-        if (event.keyCode === ESCAPE && this._control.focused && this.hasCleaner) {
+        if (this.canCleanerClearByEsc && event.keyCode === ESCAPE && this._control.focused && this.hasCleaner) {
             if (this._control && this._control.ngControl) {
                 this._control.ngControl.reset();
             }

packages/mosaic/select/_select-theme.scss

@@ -35,6 +35,10 @@
         background-color: if($is-dark, map-get($second, 700), map-get($background, background));
     }
 
+    .mc-select__no-options-message {
+        color: mc-color($second, 400);
+    }
+
     .mc-select__search-container {
         border-bottom: {
             width: 1px;

packages/mosaic/select/select.component.spec.ts

@@ -46,7 +46,7 @@ import {
     SPACE,
     TAB,
     UP_ARROW,
-    A
+    A, ESCAPE
 } from '@ptsecurity/cdk/keycodes';
 import { OverlayContainer } from '@ptsecurity/cdk/overlay';
 import { Platform } from '@ptsecurity/cdk/platform';
@@ -235,7 +235,7 @@ class SelectWithChangeEvent {
     selector: 'select-with-search',
     template: `
         <mc-form-field>
-            <mc-select [(value)]="singleSelectedWithSearch">
+            <mc-select #select [(value)]="singleSelectedWithSearch">
                 <mc-form-field mcSelectSearch>
                     <input
                         mcInput
@@ -249,6 +249,8 @@ class SelectWithChangeEvent {
     `
 })
 class SelectWithSearch {
+    @ViewChild(McSelect, {static: false}) select: McSelect;
+
     singleSelectedWithSearch = 'Moscow';
 
     searchCtrl: FormControl = new FormControl();
@@ -2294,6 +2296,39 @@ describe('McSelect', () => {
 
             expect(optionsTexts).toEqual(['Kaluga', 'Luga']);
         }));
+
+        it('should clear search by esc', (() => {
+            trigger.click();
+            fixture.detectChanges();
+
+            const inputElementDebug = fixture.debugElement.query(By.css('input'));
+
+            inputElementDebug.nativeElement.value = 'lu';
+
+            inputElementDebug.triggerEventHandler('input', { target: inputElementDebug.nativeElement });
+            fixture.detectChanges();
+
+            dispatchKeyboardEvent(inputElementDebug.nativeElement, 'keydown', ESCAPE);
+
+            fixture.detectChanges();
+
+            expect(inputElementDebug.nativeElement.value).toBe('');
+        }));
+
+        it('should close list by esc if input is empty', () => {
+            trigger.click();
+            fixture.detectChanges();
+
+            const inputElementDebug = fixture.debugElement.query(By.css('input'));
+
+            dispatchKeyboardEvent(inputElementDebug.nativeElement, 'keydown', ESCAPE);
+
+            fixture.detectChanges();
+
+            const selectInstance = fixture.componentInstance.select;
+
+            expect(selectInstance.panelOpen).toBe(false);
+        });
     });
 
     describe('with a selectionChange event handler', () => {

packages/mosaic/select/select.component.ts

@@ -1,7 +1,8 @@
 /* tslint:disable:no-empty */
 
 import {
-    AfterContentInit, AfterViewInit,
+    AfterContentInit,
+    AfterViewInit,
     Attribute,
     ChangeDetectionStrategy,
     ChangeDetectorRef,
@@ -21,10 +22,12 @@ import {
     OnInit,
     Optional,
     Output,
-    QueryList, Renderer2,
+    QueryList,
+    Renderer2,
     Self,
     SimpleChanges,
-    ViewChild, ViewChildren,
+    ViewChild,
+    ViewChildren,
     ViewEncapsulation
 } from '@angular/core';
 import { ControlValueAccessor, FormGroupDirective, NgControl, NgForm } from '@angular/forms';
@@ -42,6 +45,7 @@ import {
     SPACE,
     UP_ARROW,
     A,
+    ESCAPE,
     PAGE_UP,
     PAGE_DOWN
 } from '@ptsecurity/cdk/keycodes';
@@ -118,7 +122,10 @@ const McSelectMixinBase: CanDisableCtor & HasTabIndexCtor & CanUpdateErrorStateC
 
 @Directive({
     selector: '[mcSelectSearch]',
-    exportAs: 'mcSelectSearch'
+    exportAs: 'mcSelectSearch',
+    host: {
+        '(keydown)': 'handleKeydown($event)'
+    }
 })
 export class McSelectSearch implements AfterContentInit, OnDestroy {
     @ContentChild(McInput, {static: false}) input: McInput;
@@ -127,6 +134,10 @@ export class McSelectSearch implements AfterContentInit, OnDestroy {
 
     isSearchChanged: boolean = false;
 
+    constructor(formField: McFormField) {
+        formField.canCleanerClearByEsc = false;
+    }
+
     focus(): void {
         this.input.focus();
     }
@@ -137,7 +148,7 @@ export class McSelectSearch implements AfterContentInit, OnDestroy {
 
     ngAfterContentInit(): void {
         if (!this.input) {
-            throw Error('McSelectSearch does not work without input');
+            throw Error('McSelectSearch does not work without mcInput');
         }
 
         if (!this.input.ngControl) {
@@ -152,8 +163,17 @@ export class McSelectSearch implements AfterContentInit, OnDestroy {
     ngOnDestroy(): void {
         this.searchChangesSubscription.unsubscribe();
     }
-}
 
+    handleKeydown(event: KeyboardEvent) {
+        // tslint:disable-next-line:deprecation
+        if (event.keyCode === ESCAPE) {
+            if (this.input.value) {
+                this.reset();
+                event.stopPropagation();
+            }
+        }
+    }
+}
 
 
 @Directive({ selector: 'mc-select-trigger' })
@@ -197,7 +217,9 @@ export class McSelect extends McSelectMixinBase implements
     controlType = 'mc-select';
 
     hiddenItems: number = 0;
+    // todo localization
     oneMoreText: string = '...ещё';
+    noOptionsText: string = 'Ничего не найдено';
 
     /** The last measured value for the trigger's client bounding rect. */
     triggerRect: ClientRect;
@@ -435,6 +457,12 @@ export class McSelect extends McSelectMixinBase implements
         return this._panelOpen;
     }
 
+    get isEmptySearchResult(): boolean {
+        return this.search &&
+            this.options.length === 0 &&
+            !!this.search.input.value;
+    }
+
     private _panelOpen = false;
 
     /** The scroll position of the overlay panel, calculated to center the selected option. */
@@ -549,6 +577,12 @@ export class McSelect extends McSelectMixinBase implements
     resetSearch(): void {
         if (this.search) {
             this.search.reset();
+            /*
+            todo the incorrect behaviour of keyManager is possible here
+            to avoid first item selection (to provide correct options flipping on closed select)
+            we should process options update like it is the first options appearance
+             */
+            this.search.isSearchChanged = false;
         }
     }
 
@@ -584,13 +618,13 @@ export class McSelect extends McSelectMixinBase implements
                     this.overlayDir.overlayRef.overlayElement.style.fontSize = `${this.triggerFontSize}px`;
                 }
             });
-
-        this.resetSearch();
     }
 
     /** Closes the overlay panel and focuses the host element. */
     close(): void {
         if (this._panelOpen) {
+            // the order of calls is important
+            this.resetSearch();
             this._panelOpen = false;
             this.keyManager.withHorizontalOrientation(this.isRtl() ? 'rtl' : 'ltr');
 

packages/mosaic/select/select.html

@@ -62,6 +62,7 @@
             [@fadeInContent]="'showing'"
             (@fadeInContent.done)="onFadeInDone()">
 
+            <div *ngIf="isEmptySearchResult" class="mc-select__no-options-message">{{noOptionsText}}</div>
             <ng-content select="mc-option,mc-optgroup"></ng-content>
         </div>
     </div>

packages/mosaic/select/select.scss

@@ -32,6 +32,19 @@ $mc-select-placeholder-arrow-space: 2 * ($mc-select-arrow-size + $mc-select-arro
     }
 }
 
+.mc-select__no-options-message {
+    display: flex;
+    flex-direction: row;
+    align-items: center;
+    box-sizing: border-box;
+    position: relative;
+    max-width: 100%;
+    height: 32px;
+    cursor: default;
+    outline: none;
+    padding: 0 16px;
+}
+
 .mc-select__trigger {
     display: flex;
     box-sizing: border-box;
@@ -58,6 +71,9 @@ $mc-select-placeholder-arrow-space: 2 * ($mc-select-arrow-size + $mc-select-arro
     overflow: hidden;
     text-overflow: ellipsis;
 
+    // compensate borders
+    margin-top: -2px;
+
     white-space: nowrap;
 
     & > span {
@@ -71,7 +87,7 @@ $mc-select-placeholder-arrow-space: 2 * ($mc-select-arrow-size + $mc-select-arro
 
     overflow: hidden;
 
-    max-height: 24px;
+    max-height: 26px;
 
     margin: 0;
     padding-left: 0;