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fix: fix selection rect error when editor is scrolling, fixed #563

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This commit is contained in:
qishaoxuan 2022-07-27 17:56:52 +08:00
parent 500a68df7a
commit 937221a040
1 changed files with 49 additions and 26 deletions
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75
libs/components/editor-core/src/editor/scroll/scroll.ts
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@ -14,12 +14,12 @@ export class ScrollManager {
private _scrollContainer: HTMLElement;
private _animationFrame: null | number = null;
private _eventName = 'scrolling';
private _currentMoveDirection: [HorizontalTypes, VerticalTypes] = [
null,
null,
];
private _scrollRecord: [number, number] = [0, 0];
private _scrollDirection: [HorizontalTypes, VerticalTypes] = [null, null];
private _scrollMoveOffset = 8;
private _autoScrollMoveOffset = 8;
private _scrollingEvent = new EventEmitter();
constructor(editor: BlockEditor) {
@ -32,12 +32,18 @@ export class ScrollManager {
}
public onScrolling(
cb: (args: { direction: [HorizontalTypes, VerticalTypes] }) => void
cb: (args: {
direction: [HorizontalTypes, VerticalTypes];
event: UIEvent;
}) => void
) {
this._scrollingEvent.on(this._eventName, cb);
}
public removeScrolling(
cb: (args: { direction: [HorizontalTypes, VerticalTypes] }) => void
cb: (args: {
direction: [HorizontalTypes, VerticalTypes];
event: UIEvent;
}) => void
) {
this._scrollingEvent.removeListener(this._eventName, cb);
}
@ -73,9 +79,34 @@ export class ScrollManager {
return this._scrollMoveOffset;
}
private _getScrollDirection(): [HorizontalTypes, VerticalTypes] {
const [recordScrollTop, recordScrollLeft] = this._scrollRecord;
return [
this.scrollContainer.scrollLeft === recordScrollLeft
? null
: this.scrollContainer.scrollLeft > recordScrollLeft
? 'right'
: 'left',
this.scrollContainer.scrollTop === recordScrollTop
? null
: this.scrollContainer.scrollTop > recordScrollTop
? 'down'
: 'up',
];
}
public emitScrollEvent(event: UIEvent) {
this._scrollDirection = this._getScrollDirection();
this._scrollMoveOffset = Math.abs(
this.scrollContainer.scrollTop - this._scrollRecord[0]
);
this._scrollRecord = [
this.scrollContainer.scrollTop,
this.scrollContainer.scrollLeft,
];
this._scrollingEvent.emit(this._eventName, {
direction: this._currentMoveDirection,
direction: this._scrollDirection,
event,
});
}
@ -184,22 +215,14 @@ export class ScrollManager {
this.scrollTo({ top: 0, behavior });
}
private _autoScroll() {
private _autoScroll(direction: [HorizontalTypes, VerticalTypes]) {
const xValue =
this._currentMoveDirection[0] === 'left'
? -1
: this._currentMoveDirection[0] === 'right'
? 1
: 0;
direction[0] === 'left' ? -1 : direction[0] === 'right' ? 1 : 0;
const yValue =
this._currentMoveDirection[1] === 'up'
? -1
: this._currentMoveDirection[1] === 'down'
? 1
: 0;
direction[1] === 'up' ? -1 : direction[1] === 'down' ? 1 : 0;
const horizontalOffset = this._scrollMoveOffset * xValue;
const verticalOffset = this._scrollMoveOffset * yValue;
const horizontalOffset = this._autoScrollMoveOffset * xValue;
const verticalOffset = this._autoScrollMoveOffset * yValue;
const calcLeft = this.scrollLeft + horizontalOffset;
const calcTop = this.scrollTop + verticalOffset;
@ -230,26 +253,26 @@ export class ScrollManager {
// this._scrollingEvent.emit(this._eventName, {
// direction: this._currentMoveDirection,
// });
this._autoScroll();
this._autoScroll(direction);
});
}
public startAutoScroll(direction: [HorizontalTypes, VerticalTypes]) {
if (direction[0] === null && direction[1] === null) {
this._currentMoveDirection = direction;
this._scrollDirection = direction;
this.stopAutoScroll();
return;
}
if (
direction[0] !== this._currentMoveDirection[0] ||
direction[1] !== this._currentMoveDirection[1]
direction[0] !== this._scrollDirection[0] ||
direction[1] !== this._scrollDirection[1]
) {
this._currentMoveDirection = direction;
this._scrollDirection = direction;
this.stopAutoScroll();
} else {
return;
}
this._autoScroll();
this._autoScroll(direction);
}
public stopAutoScroll() {
if (this._animationFrame) {