@rp3e11/ngx-slider
Version:
Self-contained, mobile friendly slider component for Angular 13 based on angularjs-slider
70 lines • 11.3 kB
JavaScript
import { Subject } from 'rxjs';
import { throttleTime, tap } from 'rxjs/operators';
import detectPassiveEvents from 'detect-passive-events';
import { EventListener } from './event-listener';
import { ValueHelper } from './value-helper';
/**
* Helper class to attach event listeners to DOM elements with debounce support using rxjs
*/
export class EventListenerHelper {
constructor(renderer) {
this.renderer = renderer;
}
attachPassiveEventListener(nativeElement, eventName, callback, throttleInterval) {
// Only use passive event listeners if the browser supports it
if (detectPassiveEvents.hasSupport !== true) {
return this.attachEventListener(nativeElement, eventName, callback, throttleInterval);
}
// Angular doesn't support passive event handlers (yet), so we need to roll our own code using native functions
const listener = new EventListener();
listener.eventName = eventName;
listener.events = new Subject();
const observerCallback = (event) => {
listener.events.next(event);
};
nativeElement.addEventListener(eventName, observerCallback, { passive: true, capture: false });
listener.teardownCallback = () => {
nativeElement.removeEventListener(eventName, observerCallback, { passive: true, capture: false });
};
listener.eventsSubscription = listener.events
.pipe((!ValueHelper.isNullOrUndefined(throttleInterval))
? throttleTime(throttleInterval, undefined, { leading: true, trailing: true })
: tap(() => { }) // no-op
)
.subscribe((event) => {
callback(event);
});
return listener;
}
detachEventListener(eventListener) {
if (!ValueHelper.isNullOrUndefined(eventListener.eventsSubscription)) {
eventListener.eventsSubscription.unsubscribe();
eventListener.eventsSubscription = null;
}
if (!ValueHelper.isNullOrUndefined(eventListener.events)) {
eventListener.events.complete();
eventListener.events = null;
}
if (!ValueHelper.isNullOrUndefined(eventListener.teardownCallback)) {
eventListener.teardownCallback();
eventListener.teardownCallback = null;
}
}
attachEventListener(nativeElement, eventName, callback, throttleInterval) {
const listener = new EventListener();
listener.eventName = eventName;
listener.events = new Subject();
const observerCallback = (event) => {
listener.events.next(event);
};
listener.teardownCallback = this.renderer.listen(nativeElement, eventName, observerCallback);
listener.eventsSubscription = listener.events
.pipe((!ValueHelper.isNullOrUndefined(throttleInterval))
? throttleTime(throttleInterval, undefined, { leading: true, trailing: true })
: tap(() => { }) // no-op
)
.subscribe((event) => { callback(event); });
return listener;
}
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"event-listener-helper.js","sourceRoot":"","sources":["../../../src/ngx-slider/lib/event-listener-helper.ts"],"names":[],"mappings":"AACA,OAAO,EAAE,OAAO,EAAE,MAAM,MAAM,CAAC;AAC/B,OAAO,EAAE,YAAY,EAAE,GAAG,EAAE,MAAM,gBAAgB,CAAC;AACnD,OAAO,mBAAmB,MAAM,uBAAuB,CAAC;AAExD,OAAO,EAAE,aAAa,EAAE,MAAM,kBAAkB,CAAC;AACjD,OAAO,EAAE,WAAW,EAAE,MAAM,gBAAgB,CAAC;AAE7C;;GAEG;AACH,MAAM,OAAO,mBAAmB;IAC9B,YAAoB,QAAmB;QAAnB,aAAQ,GAAR,QAAQ,CAAW;IACvC,CAAC;IAEM,0BAA0B,CAAC,aAAkB,EAAE,SAAiB,EAAE,QAA8B,EACnG,gBAAyB;QAC3B,8DAA8D;QAC9D,IAAI,mBAAmB,CAAC,UAAU,KAAK,IAAI,EAAE;YAC3C,OAAO,IAAI,CAAC,mBAAmB,CAAC,aAAa,EAAE,SAAS,EAAE,QAAQ,EAAE,gBAAgB,CAAC,CAAC;SACvF;QAED,+GAA+G;QAC/G,MAAM,QAAQ,GAAkB,IAAI,aAAa,EAAE,CAAC;QACpD,QAAQ,CAAC,SAAS,GAAG,SAAS,CAAC;QAC/B,QAAQ,CAAC,MAAM,GAAG,IAAI,OAAO,EAAS,CAAC;QAEvC,MAAM,gBAAgB,GAA2B,CAAC,KAAY,EAAQ,EAAE;YACtE,QAAQ,CAAC,MAAM,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QAC9B,CAAC,CAAC;QACF,aAAa,CAAC,gBAAgB,CAAC,SAAS,EAAE,gBAAgB,EAAE,EAAC,OAAO,EAAE,IAAI,EAAE,OAAO,EAAE,KAAK,EAAC,CAAC,CAAC;QAE7F,QAAQ,CAAC,gBAAgB,GAAG,GAAS,EAAE;YACrC,aAAa,CAAC,mBAAmB,CAAC,SAAS,EAAE,gBAAgB,EAAE,EAAC,OAAO,EAAE,IAAI,EAAE,OAAO,EAAE,KAAK,EAAC,CAAC,CAAC;QAClG,CAAC,CAAC;QAEF,QAAQ,CAAC,kBAAkB,GAAG,QAAQ,CAAC,MAAM;aAC1C,IAAI,CAAC,CAAC,CAAC,WAAW,CAAC,iBAAiB,CAAC,gBAAgB,CAAC,CAAC;YACtD,CAAC,CAAC,YAAY,CAAC,gBAAgB,EAAE,SAAS,EAAE,EAAE,OAAO,EAAE,IAAI,EAAE,QAAQ,EAAE,IAAI,EAAC,CAAC;YAC7E,CAAC,CAAC,GAAG,CAAC,GAAG,EAAE,GAAE,CAAC,CAAC,CAAC,QAAQ;SACzB;aACA,SAAS,CAAC,CAAC,KAAY,EAAE,EAAE;YAC1B,QAAQ,CAAC,KAAK,CAAC,CAAC;QAClB,CAAC,CAAC,CAAC;QAEL,OAAO,QAAQ,CAAC;IAClB,CAAC;IAEM,mBAAmB,CAAC,aAA4B;QACrD,IAAI,CAAC,WAAW,CAAC,iBAAiB,CAAC,aAAa,CAAC,kBAAkB,CAAC,EAAE;YACpE,aAAa,CAAC,kBAAkB,CAAC,WAAW,EAAE,CAAC;YAC/C,aAAa,CAAC,kBAAkB,GAAG,IAAI,CAAC;SACzC;QAED,IAAI,CAAC,WAAW,CAAC,iBAAiB,CAAC,aAAa,CAAC,MAAM,CAAC,EAAE;YACxD,aAAa,CAAC,MAAM,CAAC,QAAQ,EAAE,CAAC;YAChC,aAAa,CAAC,MAAM,GAAG,IAAI,CAAC;SAC7B;QAED,IAAI,CAAC,WAAW,CAAC,iBAAiB,CAAC,aAAa,CAAC,gBAAgB,CAAC,EAAE;YAClE,aAAa,CAAC,gBAAgB,EAAE,CAAC;YACjC,aAAa,CAAC,gBAAgB,GAAG,IAAI,CAAC;SACvC;IACH,CAAC;IAEM,mBAAmB,CAAC,aAAkB,EAAE,SAAiB,EAAE,QAA8B,EAC5F,gBAAyB;QAC3B,MAAM,QAAQ,GAAkB,IAAI,aAAa,EAAE,CAAC;QACpD,QAAQ,CAAC,SAAS,GAAG,SAAS,CAAC;QAC/B,QAAQ,CAAC,MAAM,GAAG,IAAI,OAAO,EAAS,CAAC;QAEvC,MAAM,gBAAgB,GAA2B,CAAC,KAAY,EAAQ,EAAE;YACtE,QAAQ,CAAC,MAAM,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QAC9B,CAAC,CAAC;QAEF,QAAQ,CAAC,gBAAgB,GAAG,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,aAAa,EAAE,SAAS,EAAE,gBAAgB,CAAC,CAAC;QAE7F,QAAQ,CAAC,kBAAkB,GAAG,QAAQ,CAAC,MAAM;aAC1C,IAAI,CAAC,CAAC,CAAC,WAAW,CAAC,iBAAiB,CAAC,gBAAgB,CAAC,CAAC;YACpD,CAAC,CAAC,YAAY,CAAC,gBAAgB,EAAE,SAAS,EAAE,EAAE,OAAO,EAAE,IAAI,EAAE,QAAQ,EAAE,IAAI,EAAC,CAAC;YAC7E,CAAC,CAAC,GAAG,CAAC,GAAG,EAAE,GAAE,CAAC,CAAC,CAAC,QAAQ;SAC3B;aACA,SAAS,CAAC,CAAC,KAAY,EAAE,EAAE,GAAG,QAAQ,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;QAErD,OAAO,QAAQ,CAAC;IAClB,CAAC;CACF","sourcesContent":["import { Renderer2 } from '@angular/core';\nimport { Subject } from 'rxjs';\nimport { throttleTime, tap } from 'rxjs/operators';\nimport detectPassiveEvents from 'detect-passive-events';\n\nimport { EventListener } from './event-listener';\nimport { ValueHelper } from './value-helper';\n\n/**\n * Helper class to attach event listeners to DOM elements with debounce support using rxjs\n */\nexport class EventListenerHelper {\n  constructor(private renderer: Renderer2) {\n  }\n\n  public attachPassiveEventListener(nativeElement: any, eventName: string, callback: (event: any) => void,\n      throttleInterval?: number): EventListener {\n    // Only use passive event listeners if the browser supports it\n    if (detectPassiveEvents.hasSupport !== true) {\n      return this.attachEventListener(nativeElement, eventName, callback, throttleInterval);\n    }\n\n    // Angular doesn't support passive event handlers (yet), so we need to roll our own code using native functions\n    const listener: EventListener = new EventListener();\n    listener.eventName = eventName;\n    listener.events = new Subject<Event>();\n\n    const observerCallback: (event: Event) => void = (event: Event): void => {\n      listener.events.next(event);\n    };\n    nativeElement.addEventListener(eventName, observerCallback, {passive: true, capture: false});\n\n    listener.teardownCallback = (): void => {\n      nativeElement.removeEventListener(eventName, observerCallback, {passive: true, capture: false});\n    };\n\n    listener.eventsSubscription = listener.events\n      .pipe((!ValueHelper.isNullOrUndefined(throttleInterval))\n        ? throttleTime(throttleInterval, undefined, { leading: true, trailing: true})\n        : tap(() => {}) // no-op\n      )\n      .subscribe((event: Event) => {\n        callback(event);\n      });\n\n    return listener;\n  }\n\n  public detachEventListener(eventListener: EventListener): void {\n    if (!ValueHelper.isNullOrUndefined(eventListener.eventsSubscription)) {\n      eventListener.eventsSubscription.unsubscribe();\n      eventListener.eventsSubscription = null;\n    }\n\n    if (!ValueHelper.isNullOrUndefined(eventListener.events)) {\n      eventListener.events.complete();\n      eventListener.events = null;\n    }\n\n    if (!ValueHelper.isNullOrUndefined(eventListener.teardownCallback)) {\n      eventListener.teardownCallback();\n      eventListener.teardownCallback = null;\n    }\n  }\n\n  public attachEventListener(nativeElement: any, eventName: string, callback: (event: any) => void,\n      throttleInterval?: number): EventListener {\n    const listener: EventListener = new EventListener();\n    listener.eventName = eventName;\n    listener.events = new Subject<Event>();\n\n    const observerCallback: (event: Event) => void = (event: Event): void => {\n      listener.events.next(event);\n    };\n\n    listener.teardownCallback = this.renderer.listen(nativeElement, eventName, observerCallback);\n\n    listener.eventsSubscription = listener.events\n      .pipe((!ValueHelper.isNullOrUndefined(throttleInterval))\n          ? throttleTime(throttleInterval, undefined, { leading: true, trailing: true})\n          : tap(() => {}) // no-op\n      )\n      .subscribe((event: Event) => { callback(event); });\n\n    return listener;\n  }\n}\n"]}