CHange keydown listeners to specific key listener to optimize perfomance

sharedComponents/advanced-search-input/advanced-search-input.component.ts

@@ -14,7 +14,8 @@ import {EntitiesSelectionComponent} from "../../searchPages/searchUtils/entities
 @Component({
   selector: 'advanced-search-input',
   template: `
-    <div *ngIf="inputs.length > 0" class="search-input" [class.dark]="dark" [ngClass]="searchInputClass" [class.small-vertical]="smallVertical">
+    <div *ngIf="inputs.length > 0" class="search-input" [class.dark]="dark" [ngClass]="searchInputClass"
+         [class.small-vertical]="smallVertical">
       <div class="uk-flex uk-flex-middle">
         <div class="uk-width-expand">
           <div class="uk-grid uk-grid-collapse inputs" [ngClass]="'uk-child-width-1-' + length" uk-grid>
@@ -39,14 +40,13 @@ export class AdvancedSearchInputComponent implements AfterContentInit, OnDestroy
   @Input() smallVertical: boolean = false;
   @Output() searchEmitter: EventEmitter<void> = new EventEmitter<void>();
   
-  @HostListener('window:keydown', ['$event'])
+  @HostListener('window:keydown.enter', ['$event'])
-  keyEvent(event: KeyboardEvent) {
+  enter(event: KeyboardEvent) {
     let input: InputComponent | EntitiesSelectionComponent = this.inputs.toArray().find(input => input.focused);
     if (!input) {
       input = this.entities.toArray().find(input => input.input.focused);
     }
     if (input) {
-      if(event.code === 'Enter') {
       if (input instanceof EntitiesSelectionComponent) {
         input.input.focus(false, event);
       } else {
@@ -56,7 +56,6 @@ export class AdvancedSearchInputComponent implements AfterContentInit, OnDestroy
       this.searchEmitter.emit();
     }
   }
-  }
   
   constructor() {
   }

sharedComponents/input/input.component.ts

@@ -19,7 +19,15 @@ import {EnvProperties} from "../../utils/properties/env-properties";
 import {properties} from "../../../../environments/environment";
 import {ClickEvent} from "../../utils/click/click-outside-or-esc.directive";
 
-export type InputType = 'text' | 'URL' | 'logoURL' | 'autocomplete' | 'autocomplete_soft' | 'textarea' | 'select' | 'chips';
+export type InputType =
+  'text'
+  | 'URL'
+  | 'logoURL'
+  | 'autocomplete'
+  | 'autocomplete_soft'
+  | 'textarea'
+  | 'select'
+  | 'chips';
 
 export interface Option {
   icon?: string,
@@ -70,7 +78,8 @@ declare var UIkit;
               </ng-container>
               <ng-container *ngIf="!placeholderInfo?.static">
                 <div *ngIf="!getLabel(formControl.value)" class="input uk-text-truncate">No value selected</div>
-                <div *ngIf="getLabel(formControl.value)" class="input uk-text-truncate">{{getLabel(formControl.value)}}</div>
+                <div *ngIf="getLabel(formControl.value)"
+                     class="input uk-text-truncate">{{getLabel(formControl.value)}}</div>
               </ng-container>
             </ng-template>
             <ng-template [ngIf]="type === 'autocomplete'">
@@ -84,30 +93,35 @@ declare var UIkit;
             </ng-template>
             <ng-template [ngIf]="type === 'chips'">
               <div class="uk-grid uk-grid-small uk-grid-row-collapse uk-width-expand" uk-grid>
-                <div *ngFor="let chip of formAsArray.controls; let i=index" [class.uk-hidden]="!focused && i > 0" class="chip">
+                <div *ngFor="let chip of formAsArray.controls; let i=index" [class.uk-hidden]="!focused && i > 0"
+                     class="chip">
                   <div class="uk-label uk-flex uk-flex-middle">
                     <span class="uk-text-truncate uk-width-expand">{{getLabel(chip.value)}}</span>
                     <icon (click)="remove(i, $event)" class="uk-link-text uk-margin-small-left clickable" [flex]="true"
                           name="close" ratio="0.7"></icon>
                   </div>
                 </div>
-                <div *ngIf="searchControl && (focused || formAsArray.length === 0)" class="uk-width-small uk-flex uk-flex-column uk-flex-center">
+                <div *ngIf="searchControl && (focused || formAsArray.length === 0)"
+                     class="uk-width-small uk-flex uk-flex-column uk-flex-center">
                   <input #searchInput class="input" [class.search]="searchControl.value"
                          [attr.placeholder]="placeholderInfo?.static?placeholderInfo.label:hint"
                          [formControl]="searchControl" [class.uk-text-truncate]="!focused">
                 </div>
-                <div *ngIf="!focused && formAsArray.length > 1" class="uk-width-expand uk-flex uk-flex-column uk-flex-center more">
+                <div *ngIf="!focused && formAsArray.length > 1"
+                     class="uk-width-expand uk-flex uk-flex-column uk-flex-center more">
                   + {{(formAsArray.length - 1)}} more
                 </div>
               </div>
             </ng-template>
-            <div *ngIf="(formControl.disabled && disabledIcon) || icon || (type === 'select' && selectArrow) || type === 'autocomplete'"
+            <div
+                *ngIf="(formControl.disabled && disabledIcon) || icon || (type === 'select' && selectArrow) || type === 'autocomplete'"
                 class="uk-margin-left icon">
               <icon *ngIf="formControl.disabled && disabledIcon" [name]="disabledIcon" [flex]="true"></icon>
               <ng-template [ngIf]="formControl.enabled">
                 <icon *ngIf="!formControl.value && icon" [name]="icon" [flex]="true"></icon>
                 <icon *ngIf="!icon && type === 'select' && selectArrow" name="arrow_drop_down" [flex]="true"></icon>
-                <button *ngIf="searchControl?.value && type === 'autocomplete'" class="uk-close  uk-icon" (click)="resetSearch($event)">
+                <button *ngIf="searchControl?.value && type === 'autocomplete'" class="uk-close  uk-icon"
+                        (click)="resetSearch($event)">
                   <icon [flex]="true" name="close"></icon>
                 </button>
               </ng-template>
@@ -121,7 +135,8 @@ declare var UIkit;
       <div class="options uk-dropdown" *ngIf="filteredOptions && filteredOptions.length > 0 && opened" #optionBox
            uk-dropdown="pos: bottom-justify; mode: none; offset: 15; boundary-align: true;" [attr.boundary]="'#' + id">
         <ul class="uk-nav uk-dropdown-nav">
-          <li *ngFor="let option of filteredOptions; let i=index" [class.uk-active]="(formControl.value === option.value) || selectedIndex === i"
+          <li *ngFor="let option of filteredOptions; let i=index"
+              [class.uk-active]="(formControl.value === option.value) || selectedIndex === i"
               [attr.uk-tooltip]="(tooltip)?('title: ' + option.label + ';'):null">
             <a (click)="selectOption(option, $event)">{{option.label}}</a>
           </li>
@@ -249,22 +264,31 @@ export class InputComponent implements OnInit, OnDestroy, AfterViewInit, OnChang
     }
   }
   
-  @HostListener('window:keydown', ['$event'])
+  @HostListener('window:keydown.arrowUp', ['$event'])
-  keyEvent(event: KeyboardEvent) {
+  arrowUp(event: KeyboardEvent) {
     if (this.opened) {
-      if(event.code === 'ArrowUp') {
       event.preventDefault();
       if (this.selectedIndex > 0) {
         this.selectedIndex--;
         this.optionBox.nativeElement.scrollBy(0, -34);
       }
-      } else if(event.code === 'ArrowDown') {
+    }
+  }
+  
+  @HostListener('window:keydown.arrowDown', ['$event'])
+  arrowDown(event: KeyboardEvent) {
+    if (this.opened) {
       event.preventDefault();
       if (this.selectedIndex < (this.filteredOptions.length - 1)) {
         this.selectedIndex++;
         this.optionBox.nativeElement.scrollBy(0, 34);
       }
-      } else if(event.code === 'Enter') {
+    }
+  }
+  
+  @HostListener('window:keydown.enter', ['$event'])
+  enter(event: KeyboardEvent) {
+    if (this.opened) {
       event.preventDefault();
       if (this.filteredOptions[this.selectedIndex]) {
         this.selectOption(this.filteredOptions[this.selectedIndex], event);
@@ -272,7 +296,6 @@ export class InputComponent implements OnInit, OnDestroy, AfterViewInit, OnChang
       }
     }
   }
-  }
   
   click(event: ClickEvent) {
     this.focus(!event.clicked, event);

sharedComponents/search-input/search-input.component.ts

@@ -58,15 +58,13 @@ export class SearchInputComponent implements OnInit {
   constructor(private cdr: ChangeDetectorRef) {
   }
   
-  @HostListener('window:keydown', ['$event'])
+  @HostListener('window:keydown.enter', ['$event'])
-  keyEvent(event: KeyboardEvent) {
+  enter(event: KeyboardEvent) {
     if(this.input.focused) {
-      if(event.code === 'Enter') {
       event.preventDefault();
       this.search(event);
     }
   }
-  }
   
   click(event: ClickEvent) {
     if(this.expandable && !this.disabled) {

utils/click/click-outside-or-esc.directive.ts

@@ -13,7 +13,7 @@ export class ClickOutsideOrEsc {
 
   constructor(private elementRef: ElementRef) {}
   
-  @HostListener('document:click', ['$event'])
+  @HostListener('click', ['$event'])
   click(event) {
     if(event.isTrusted) {
       this.clickOutside.emit({
@@ -23,13 +23,11 @@ export class ClickOutsideOrEsc {
     }
   }
   
-  @HostListener('window:keydown', ['$event'])
+  @HostListener('window:keydown.escape', ['$event'])
-  keyEvent(event: KeyboardEvent) {
+  esc(event: KeyboardEvent) {
-    if(event.code === 'Escape') {
     this.clickOutside.emit({
       event: event,
       clicked: true
     });
   }
 }
-}