Check out this link for an AngularJS example.
Curious how this functionality translates to Angular 2?
Check out this link for an AngularJS example.
Curious how this functionality translates to Angular 2?
This is a sample code snippet demonstrating a simple implementation.
@Component({
selector: 'my-app',
template: `
<div>
<h2 (mousedown)="handleMouseDown()" (mouseup)="handleMouseUp()" (mouseleave)="handleMouseUp()">Hello {{name}}</h2>
</div>
`,
})
export class App {
name: string;
timeoutHandler: number;
constructor() {
this.name = 'Angular!'
}
public handleMouseUp() {
if (this.timeoutHandler) {
clearTimeout(this.timeoutHandler);
this.name = "canceled";
this.timeoutHandler = null;
}
}
public handleMouseDown() {
this.timeoutHandler = setTimeout(() => {
this.name = "has been long pressed"
this.timeoutHandler = null;
}, 500);
}
}
The code above sets a timeout to cancel if the user clicks away before a certain time has elapsed.
You can check out a live example on Plunkr here.
If you need something to occur upon a click-and-hold event, simply replace `setTimeout` with `setInterval` as demonstrated below:
@Component({
selector: 'my-app',
template: `
<div>
<h2 (mousedown)="handleMouseDown()" (mouseup)="handleMouseUp()" (mouseleave)="handleMouseUp()">Hello {{name}}</h2>
</div>
`,
})
export class App {
name: number = 0;
timeoutHandler;
constructor() {
this.name = -1
}
public handleMouseUp() {
if (this.timeoutHandler) {
clearInterval(this.timeoutHandler);
this.name = 0;
this.timeoutHandler = null;
}
}
public handleMouseDown() {
this.timeoutHandler = setInterval(() => {
this.name += 1;
}, 100);
}
}
You can view a functional version of this code on Plunkr here.
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