angular2-hotkeys
Version:
Angular 16 and Ivy Compatible. Older versions might work but isn't officially tested.
167 lines • 22.5 kB
JavaScript
import { Inject, Injectable } from '@angular/core';
import { Hotkey } from './hotkey.model';
import { Subject } from 'rxjs';
import { HotkeyOptions } from './hotkey.options';
import * as Mousetrap from 'mousetrap';
import * as i0 from "@angular/core";
export class HotkeysService {
constructor(options) {
this.options = options;
this.hotkeys = [];
this.pausedHotkeys = [];
this.cheatSheetToggle = new Subject();
this.preventIn = ['INPUT', 'SELECT', 'TEXTAREA'];
// noinspection JSUnusedGlobalSymbols,JSUnusedLocalSymbols
Mousetrap.prototype.stopCallback = (event, element, combo, callback) => {
// if the element has the class "mousetrap" then no need to stop
if ((' ' + element.className + ' ').indexOf(' mousetrap ') > -1) {
return false;
}
return (element.contentEditable && element.contentEditable === 'true');
};
this.mousetrap = new Mousetrap.default();
this.initCheatSheet();
}
initCheatSheet() {
if (!this.options.disableCheatSheet) {
this.add(new Hotkey(this.options.cheatSheetHotkey || '?', function (_) {
this.cheatSheetToggle.next();
}.bind(this), [], this.options.cheatSheetDescription || 'Show / hide this help menu'));
}
if (this.options.cheatSheetCloseEsc) {
this.add(new Hotkey('esc', function (_) {
this.cheatSheetToggle.next(false);
}.bind(this), ['HOTKEYS-CHEATSHEET'], this.options.cheatSheetCloseEscDescription || 'Hide this help menu'));
}
}
add(hotkey, specificEvent) {
if (Array.isArray(hotkey)) {
const temp = [];
for (const key of hotkey) {
temp.push(this.add(key, specificEvent));
}
return temp;
}
this.remove(hotkey);
this.hotkeys.push(hotkey);
this.mousetrap.bind(hotkey.combo, (event, combo) => {
let shouldExecute = true;
// if the callback is executed directly `hotkey.get('w').callback()`
// there will be no event, so just execute the callback.
if (event) {
const target = (event.target || event.srcElement); // srcElement is IE only
const nodeName = target.nodeName.toUpperCase();
// check if the input has a mousetrap class, and skip checking preventIn if so
if ((' ' + target.className + ' ').indexOf(' mousetrap ') > -1) {
shouldExecute = true;
}
else if (this.preventIn.indexOf(nodeName) > -1 &&
hotkey.allowIn.map(allow => allow.toUpperCase()).indexOf(nodeName) === -1) {
// don't execute callback if the event was fired from inside an element listed in preventIn but not in allowIn
shouldExecute = false;
}
}
if (shouldExecute) {
return hotkey.callback.apply(this, [event, combo]);
}
}, specificEvent);
return hotkey;
}
remove(hotkey, specificEvent) {
const temp = [];
if (!hotkey) {
for (const key of this.hotkeys) {
temp.push(this.remove(key, specificEvent));
}
return temp;
}
if (Array.isArray(hotkey)) {
for (const key of hotkey) {
temp.push(this.remove(key));
}
return temp;
}
const index = this.findHotkey(hotkey);
if (index > -1) {
this.hotkeys.splice(index, 1);
this.mousetrap.unbind(hotkey.combo, specificEvent);
return hotkey;
}
return null;
}
get(combo) {
if (!combo) {
return this.hotkeys;
}
if (Array.isArray(combo)) {
const temp = [];
for (const key of combo) {
temp.push(this.get(key));
}
return temp;
}
for (const hotkey of this.hotkeys) {
if (hotkey.combo.indexOf(combo) > -1) {
return hotkey;
}
}
return null;
}
// noinspection JSUnusedGlobalSymbols
pause(hotkey) {
if (!hotkey) {
return this.pause(this.hotkeys);
}
if (Array.isArray(hotkey)) {
const temp = [];
for (const key of hotkey.slice()) {
temp.push(this.pause(key));
}
return temp;
}
this.remove(hotkey);
this.pausedHotkeys.push(hotkey);
return hotkey;
}
// noinspection JSUnusedGlobalSymbols
unpause(hotkey) {
if (!hotkey) {
return this.unpause(this.pausedHotkeys);
}
if (Array.isArray(hotkey)) {
const temp = [];
for (const key of hotkey.slice()) {
temp.push(this.unpause(key));
}
return temp;
}
const index = this.pausedHotkeys.indexOf(hotkey);
if (index > -1) {
this.add(hotkey);
return this.pausedHotkeys.splice(index, 1);
}
return null;
}
// noinspection JSUnusedGlobalSymbols
reset() {
this.mousetrap.reset();
this.hotkeys = [];
this.pausedHotkeys = [];
this.initCheatSheet();
}
findHotkey(hotkey) {
return this.hotkeys.indexOf(hotkey);
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.2", ngImport: i0, type: HotkeysService, deps: [{ token: HotkeyOptions }], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.2", ngImport: i0, type: HotkeysService, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.2", ngImport: i0, type: HotkeysService, decorators: [{
type: Injectable,
args: [{
providedIn: 'root'
}]
}], ctorParameters: function () { return [{ type: undefined, decorators: [{
type: Inject,
args: [HotkeyOptions]
}] }]; } });
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{ Inject, Injectable } from '@angular/core';\nimport { Hotkey } from './hotkey.model';\nimport { Subject } from 'rxjs';\nimport { HotkeyOptions, IHotkeyOptions } from './hotkey.options';\nimport { MousetrapInstance } from 'mousetrap';\nimport * as Mousetrap from 'mousetrap';\n\n@Injectable({\n    providedIn: 'root'\n})\nexport class HotkeysService {\n    hotkeys: Hotkey[] = [];\n    pausedHotkeys: Hotkey[] = [];\n    mousetrap: MousetrapInstance;\n    cheatSheetToggle: Subject<any> = new Subject();\n\n    private preventIn = ['INPUT', 'SELECT', 'TEXTAREA'];\n\n    constructor(@Inject(HotkeyOptions) private options: IHotkeyOptions) {\n        // noinspection JSUnusedGlobalSymbols,JSUnusedLocalSymbols\n        Mousetrap.prototype.stopCallback = (event: KeyboardEvent, element: HTMLElement, combo: string, callback: Function) => {\n            // if the element has the class \"mousetrap\" then no need to stop\n            if ((' ' + element.className + ' ').indexOf(' mousetrap ') > -1) {\n                return false;\n            }\n            return (element.contentEditable && element.contentEditable === 'true');\n        };\n        this.mousetrap = new (Mousetrap as any).default();\n        this.initCheatSheet();\n    }\n\n    private initCheatSheet() {\n        if (!this.options.disableCheatSheet) {\n            this.add(new Hotkey(\n                this.options.cheatSheetHotkey || '?',\n                function(_: KeyboardEvent) {\n                    this.cheatSheetToggle.next();\n                }.bind(this),\n                [],\n                this.options.cheatSheetDescription || 'Show / hide this help menu',\n            ));\n        }\n\n        if (this.options.cheatSheetCloseEsc) {\n            this.add(new Hotkey(\n                'esc',\n                function(_: KeyboardEvent) {\n                    this.cheatSheetToggle.next(false);\n                }.bind(this),\n                ['HOTKEYS-CHEATSHEET'],\n                this.options.cheatSheetCloseEscDescription || 'Hide this help menu',\n            ));\n        }\n\n    }\n\n    add(hotkey: Hotkey | Hotkey[], specificEvent?: string): Hotkey | Hotkey[] {\n        if (Array.isArray(hotkey)) {\n            const temp: Hotkey[] = [];\n            for (const key of hotkey) {\n                temp.push(this.add(key, specificEvent) as Hotkey);\n            }\n            return temp;\n        }\n        this.remove(hotkey);\n        this.hotkeys.push(hotkey as Hotkey);\n        this.mousetrap.bind((hotkey as Hotkey).combo, (event: KeyboardEvent, combo: string) => {\n            let shouldExecute = true;\n\n            // if the callback is executed directly `hotkey.get('w').callback()`\n            // there will be no event, so just execute the callback.\n            if (event) {\n                const target: HTMLElement = (event.target || event.srcElement) as HTMLElement; // srcElement is IE only\n                const nodeName: string = target.nodeName.toUpperCase();\n\n                // check if the input has a mousetrap class, and skip checking preventIn if so\n                if ((' ' + target.className + ' ').indexOf(' mousetrap ') > -1) {\n                    shouldExecute = true;\n                } else if (this.preventIn.indexOf(nodeName) > -1 &&\n                    (hotkey as Hotkey).allowIn.map(allow => allow.toUpperCase()).indexOf(nodeName) === -1) {\n                    // don't execute callback if the event was fired from inside an element listed in preventIn but not in allowIn\n                    shouldExecute = false;\n                }\n            }\n\n            if (shouldExecute) {\n                return (hotkey as Hotkey).callback.apply(this, [event, combo]);\n            }\n        }, specificEvent);\n        return hotkey;\n    }\n\n    remove(hotkey?: Hotkey | Hotkey[], specificEvent?: string): Hotkey | Hotkey[] {\n        const temp: Hotkey[] = [];\n        if (!hotkey) {\n            for (const key of this.hotkeys) {\n                temp.push(this.remove(key, specificEvent) as Hotkey);\n            }\n            return temp;\n        }\n        if (Array.isArray(hotkey)) {\n            for (const key of hotkey) {\n                temp.push(this.remove(key) as Hotkey);\n            }\n            return temp;\n        }\n        const index = this.findHotkey(hotkey as Hotkey);\n        if (index > -1) {\n            this.hotkeys.splice(index, 1);\n            this.mousetrap.unbind((hotkey as Hotkey).combo, specificEvent);\n            return hotkey;\n        }\n        return null;\n    }\n\n    get(combo?: string | string[]): Hotkey | Hotkey[] {\n        if (!combo) {\n            return this.hotkeys;\n        }\n        if (Array.isArray(combo)) {\n            const temp: Hotkey[] = [];\n            for (const key of combo) {\n                temp.push(this.get(key) as Hotkey);\n            }\n            return temp;\n        }\n        for (const hotkey of this.hotkeys) {\n            if (hotkey.combo.indexOf(combo as string) > -1) {\n                return hotkey;\n            }\n        }\n        return null;\n    }\n\n    // noinspection JSUnusedGlobalSymbols\n    pause(hotkey?: Hotkey | Hotkey[]): Hotkey | Hotkey[] {\n        if (!hotkey) {\n            return this.pause(this.hotkeys);\n        }\n        if (Array.isArray(hotkey)) {\n            const temp: Hotkey[] = [];\n            for (const key of hotkey.slice()) {\n                temp.push(this.pause(key) as Hotkey);\n            }\n            return temp;\n        }\n        this.remove(hotkey);\n        this.pausedHotkeys.push(hotkey as Hotkey);\n        return hotkey;\n    }\n\n    // noinspection JSUnusedGlobalSymbols\n    unpause(hotkey?: Hotkey | Hotkey[]): Hotkey | Hotkey[] {\n        if (!hotkey) {\n            return this.unpause(this.pausedHotkeys);\n        }\n        if (Array.isArray(hotkey)) {\n            const temp: Hotkey[] = [];\n            for (const key of hotkey.slice()) {\n                temp.push(this.unpause(key) as Hotkey);\n            }\n            return temp;\n        }\n        const index: number = this.pausedHotkeys.indexOf(hotkey as Hotkey);\n        if (index > -1) {\n            this.add(hotkey);\n            return this.pausedHotkeys.splice(index, 1);\n        }\n        return null;\n    }\n\n    // noinspection JSUnusedGlobalSymbols\n    reset() {\n        this.mousetrap.reset();\n        this.hotkeys = [];\n        this.pausedHotkeys = [];\n        this.initCheatSheet();\n    }\n\n    private findHotkey(hotkey: Hotkey): number {\n        return this.hotkeys.indexOf(hotkey);\n    }\n}\n\n"]}