import { KeyboardShortcutsModule }     from 'ng-keyboard-shortcuts';  
  
@NgModule({  
    declarations: [  
    ],  
    imports: [  
        BrowserModule,  
        KeyboardShortcutsModule.forRoot()  
    ],  
    bootstrap: [AppComponent]  
})  
export class AppModule {  
}  

   [
       {
            key: ["cmd + a"],
            command: (output: ShortcutEventOutput) => console.log("command + a", output),
        },
        {
            key: "ctrl + a",
            preventDefault: true,
            command: (output: ShortcutEventOutput) => console.log("control + a", output),
            
        },
        {
            key: "ctrl + plus",
            preventDefault: true,
            command: (output: ShortcutEventOutput) => console.log("control + plus key", output),
        }
    ]

   [{
        key: ["g a"],
        command: (output: ShortcutEventOutput) => console.log("? a", output),
    }]

    [{
         key: ["up up down down left right left right b a enter"],
         label: "Sequences",
         description: "Konami code!",
         command: (output: ShortcutEventOutput) => console.log("Konami code!!!", output),
    }]

  
import { AfterViewInit, Component, ElementRef, OnInit, ViewChild } from "@angular/core";  
import { ShortcutInput, ShortcutEventOutput, KeyboardShortcutsComponent } from "ng-keyboard-shortcuts";  
  
@Component({  
    selector: 'demo-component',  
    template: "<ng-keyboard-shortcuts [shortcuts]="shortcuts"></ng-keyboard-shortcuts>"  
})  
export class DemoComponent implements AfterViewInit {  
  
    shortcuts: ShortcutInput[] = [];  
    @ViewChild('input') input: ElementRef;  
  
    ngAfterViewInit(): void {  
        this.shortcuts.push(  
            {  
                key: "ctrl + t",  
                preventDefault: true,  
                allowIn: [AllowIn.Textarea, AllowIn.Input],  
                command: e => console.log("clicked " , e.key)  
            },
           {
                key: ["? a"],
                label: "Sequences",
                description: "Sequence ? and a",
                command: (output: ShortcutEventOutput) => console.log("? a", output),
                preventDefault: true
            },            
            {
                key: ["up up down down left right left right b a enter"],
                label: "Sequences",
                description: "Konami code!",
                command: (output: ShortcutEventOutput) => console.log("Konami code!!!", output),
            },
            {  
                key: "cmd + shift + f",  
                command: (output: ShortcutEventOutput) => console.log(output),  
                preventDefault: true,  
                throttleTime: 250,  
                target: this.input.nativeElement  
            },  
            {  
                key: ["cmd + =", "cmd + z"],  
                command: (output: ShortcutEventOutput) => console.log(output),  
                preventDefault: true  
            },  
            {  
                key: "cmd + f",  
                command: (output: ShortcutEventOutput) => console.log(output),  
                preventDefault: true  
            }  
        );  
  
        this.keyboard.select("cmd + f").subscribe(e => console.log(e));  
    }  
  
    @ViewChild(KeyboardShortcutsComponent) private keyboard: KeyboardShortcutsComponent;  
  
}  

import { Component } from "@angular/core";  
  
@Component({  
  selector: "app-root",  
  template: "./app.component.html",  
  styleUrls: ["./app.component.css"]  
})  
export class AppComponent {  
  title = "Hello";  
}  
  

import { AfterViewInit, Component, ElementRef, OnInit, ViewChild } from "@angular/core";  
import { ShortcutInput, ShortcutEventOutput, KeyboardShortcutsComponent } from "ng-keyboard-shortcuts";  
  
@Component({  
    selector: 'demo-component',  
    template: "<input [ngKeyboardShortcuts]="shortcuts" />"  
})  
export class DemoComponent implements AfterViewInit {  
  
    shortcuts: ShortcutInput[] = [];  
    @ViewChild('input') input: ElementRef;  
  
    ngAfterViewInit(): void {  
        this.shortcuts.push({  
            key: "cmd + e",  
            label: "test",  
            description: "hello world",  
            command: () => console.log('directive cmd + e'),  
            preventDefault: true  
        });  
  
        this.keyboard.select("cmd + f").subscribe(e => console.log(e));  
    }  
  
    @ViewChild(KeyboardShortcutsComponent) private keyboard: KeyboardShortcutsComponent;  
  
}  

export enum AllowIn {  
    Textarea = 'TEXTAREA',  
    Input = 'INPUT',  
    Select = "SELECT"  
}  

export interface Shortcut {  
  
    key: string | string[];  
  
    /**  
     * callback to be called when shortcut is pressed.  
     * @param event - the event out  
     */  
    command(event: ShortcutEventOutput): any;  
  
    /**  
     * Description for the command can be used for rendering help menu.  
     */  
    description?: string;  
  
    /**  
     * How much time to throttle in ms.  
     */  
    throttleTime?: number;  
  
    /**  
     * Label, can be used for grouping commands.  
     */  
    label?: string;  
  
    /**  
     * Prevent browser default, default: false  
     */  
    preventDefault?: boolean;  
}  

export interface ShortcutInput extends Shortcut {  
    /**  
     * textarea, select and input are ignored by default, this is used to override  
     * this behavior.  
     * allow in node names, accepts: ["TEXTAREA", "SELECT", "INPUT]  
     */  
    allowIn?: AllowIn[];  
    /**  
     * Only trigger the command when the target is in focus.  
     */  
    target?: HTMLElement;  
}  

type = ShortcutEventOutput {  
    event: KeyboardEvent;  
    key: string | string[];  
}