jab2870/Vim-Vixen
Archived
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Clean scroller

Browse source
This commit is contained in:
Shin'ya Ueoka 2019-02-11 20:05:29 +09:00
parent 514f91f8dc
commit 7bdecfdb34
1 changed files with 40 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

68
src/content/scrolls.js
View file

@ -55,17 +55,39 @@ const resetScrolling = () => {
scrolling = false;
};
class SmoothScroller {
constructor(element) {
class Scroller {
constructor(element, smooth) {
this.element = element;
this.smooth = smooth;
}
scroll(x, y) {
scrollTo(x, y) {
let behavior = this.smooth ? 'smooth' : 'auto';
window.scrollTo({
left: x,
top: y,
behavior: 'smooth',
behavior: behavior,
});
if (!this.smooth) {
return;
}
this.prepareReset();
}
scrollBy(x, y) {
let behavior = this.smooth ? 'smooth' : 'auto';
window.scrollBy({
left: x,
top: y,
behavior: behavior,
});
if (!this.smooth) {
return;
}
this.prepareReset();
}
prepareReset() {
scrolling = true;
if (lastTimeoutId) {
clearTimeout(lastTimeoutId);
@ -85,13 +107,6 @@ class RoughtScroller {
}
}
const scroller = (element, smooth) => {
if (smooth) {
return new SmoothScroller(element);
}
return new RoughtScroller(element);
};
const getScroll = () => {
let target = scrollTarget();
return { x: target.scrollLeft, y: target.scrollTop };
@ -99,66 +114,63 @@ const getScroll = () => {
const scrollVertically = (count, smooth) => {
let target = scrollTarget();
let x = target.scrollLeft;
let y = target.scrollTop + SCROLL_DELTA_Y * count;
let delta = SCROLL_DELTA_Y * count;
if (scrolling) {
y = target.scrollTop + SCROLL_DELTA_Y * count * 4;
delta = SCROLL_DELTA_Y * count * 4;
}
scroller(target, smooth).scroll(x, y);
new Scroller(target, smooth).scrollBy(0, delta);
};
const scrollHorizonally = (count, smooth) => {
let target = scrollTarget();
let x = target.scrollLeft + SCROLL_DELTA_X * count;
let y = target.scrollTop;
let delta = SCROLL_DELTA_X * count;
if (scrolling) {
y = target.scrollTop + SCROLL_DELTA_Y * count * 4;
delta = SCROLL_DELTA_X * count * 4;
}
scroller(target, smooth).scroll(x, y);
new Scroller(target, smooth).scrollBy(delta, 0);
};
const scrollPages = (count, smooth) => {
let target = scrollTarget();
let height = target.clientHeight;
let x = target.scrollLeft;
let y = target.scrollTop + height * count;
let delta = height * count;
if (scrolling) {
y = target.scrollTop + height * count * 4;
delta = height * count;
}
scroller(target, smooth).scroll(x, y);
new Scroller(target, smooth).scrollBy(0, delta);
};
const scrollTo = (x, y, smooth) => {
let target = scrollTarget();
scroller(target, smooth, false).scroll(x, y);
new Scroller(target, smooth).scrollTo(x, y);
};
const scrollToTop = (smooth) => {
let target = scrollTarget();
let x = target.scrollLeft;
let y = 0;
scroller(target, smooth, false).scroll(x, y);
new Scroller(target, smooth).scrollTo(x, y);
};
const scrollToBottom = (smooth) => {
let target = scrollTarget();
let x = target.scrollLeft;
let y = target.scrollHeight;
scroller(target, smooth, false).scroll(x, y);
new Scroller(target, smooth).scrollTo(x, y);
};
const scrollToHome = (smooth) => {
let target = scrollTarget();
let x = 0;
let y = target.scrollTop;
scroller(target, smooth, false).scroll(x, y);
new Scroller(target, smooth).scrollTo(x, y);
};
const scrollToEnd = (smooth) => {
let target = scrollTarget();
let x = target.scrollWidth;
let y = target.scrollTop;
scroller(target, smooth, false).scroll(x, y);
new Scroller(target, smooth).scrollTo(x, y);
};
export {