47 lines
952 B
JavaScript
47 lines
952 B
JavaScript
class RevealingText {
|
|
constructor(config) {
|
|
this.element = config.element;
|
|
this.text = config.text;
|
|
this.speed = config.speed || 60;
|
|
|
|
this.timeout = null;
|
|
this.isDone = false;
|
|
}
|
|
|
|
revealOneCharacter(list) {
|
|
const next = list.splice(0,1)[0];
|
|
next.span.classList.add("revealed");
|
|
|
|
if (list.length > 0) {
|
|
this.timeout = setTimeout(() => {
|
|
this.revealOneCharacter(list)
|
|
}, next.delayAfter)
|
|
} else {
|
|
this.isDone = true;
|
|
}
|
|
}
|
|
|
|
warpToDone() {
|
|
clearTimeout(this.timeout);
|
|
this.isDone = true;
|
|
this.element.querySelectorAll("span").forEach(s => {
|
|
s.classList.add("revealed");
|
|
})
|
|
}
|
|
|
|
init() {
|
|
let characters = [];
|
|
this.text.split("").forEach(character => {
|
|
let span = document.createElement("span");
|
|
span.textContent = character;
|
|
this.element.appendChild(span);
|
|
|
|
characters.push({
|
|
span,
|
|
delayAfter: character === " " ? 0 : this.speed
|
|
})
|
|
});
|
|
|
|
this.revealOneCharacter(characters);
|
|
}
|
|
} |