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authorfragosti <francesco.agosti93@gmail.com>2018-08-25 07:48:48 +0800
committerfragosti <francesco.agosti93@gmail.com>2018-08-25 07:48:48 +0800
commit91a9014a50cca8e0d42634666fe409839aeae8cf (patch)
tree999fb63df7176129a72b6ed81fdb725d91b5ffa3 /packages
parentad161a973e5453ec267510f54d88621517254039 (diff)
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Simplify dropdown component
Diffstat (limited to 'packages')
-rw-r--r--packages/website/ts/components/ui/drop_down.tsx40
1 files changed, 15 insertions, 25 deletions
diff --git a/packages/website/ts/components/ui/drop_down.tsx b/packages/website/ts/components/ui/drop_down.tsx
index 4d5caef08..752c92e02 100644
--- a/packages/website/ts/components/ui/drop_down.tsx
+++ b/packages/website/ts/components/ui/drop_down.tsx
@@ -25,6 +25,7 @@ export interface DropDownProps {
interface DropDownState {
isDropDownOpen: boolean;
+ isHovering: boolean;
anchorEl?: HTMLInputElement;
}
@@ -35,11 +36,21 @@ export class DropDown extends React.Component<DropDownProps, DropDownState> {
activateEvent: DropdownMouseEvent.Hover,
closeEvent: DropdownMouseEvent.Hover,
};
- private _isHovering: boolean;
private _popoverCloseCheckIntervalId: number;
+ public static getDerivedStateFromProps(props: DropDownProps, state: DropDownState): Partial<DropDownState> {
+ switch (props.activateEvent) {
+ case DropdownMouseEvent.Click:
+ return { isDropDownOpen: state.isDropDownOpen };
+ case DropdownMouseEvent.Hover:
+ return { isDropDownOpen: state.isHovering };
+ default:
+ return {};
+ }
+ }
constructor(props: DropDownProps) {
super(props);
this.state = {
+ isHovering: false,
isDropDownOpen: false,
};
}
@@ -51,15 +62,6 @@ export class DropDown extends React.Component<DropDownProps, DropDownState> {
public componentWillUnmount(): void {
window.clearInterval(this._popoverCloseCheckIntervalId);
}
- public componentWillReceiveProps(_nextProps: DropDownProps): void {
- // HACK: If the popoverContent is updated to a different dimension and the users
- // mouse is no longer above it, the dropdown can enter an inconsistent state where
- // it believes the user is still hovering over it. In order to remedy this, we
- // call hoverOff whenever the dropdown receives updated props. This is a hack
- // because it will effectively close the dropdown on any prop update, barring
- // dropdowns from having dynamic content.
- this._onHoverOff();
- }
public render(): React.ReactNode {
return (
<div
@@ -98,28 +100,16 @@ export class DropDown extends React.Component<DropDownProps, DropDownState> {
}
}
private _onHover(event: React.FormEvent<HTMLInputElement>): void {
- this._isHovering = true;
- if (this.props.activateEvent === DropdownMouseEvent.Hover) {
- this._checkIfShouldOpenPopover(event);
- }
+ this.setState({ isHovering: true });
}
private _onHoverOff(): void {
- this._isHovering = false;
- }
- private _checkIfShouldOpenPopover(event: React.FormEvent<HTMLInputElement>): void {
- if (this.state.isDropDownOpen) {
- return; // noop
- }
- this.setState({
- isDropDownOpen: true,
- anchorEl: event.currentTarget,
- });
+ this.setState({ isHovering: false });
}
private _checkIfShouldClosePopover(): void {
if (!this.state.isDropDownOpen) {
return; // noop
}
- if (this.props.closeEvent === DropdownMouseEvent.Hover && !this._isHovering) {
+ if (this.props.closeEvent === DropdownMouseEvent.Hover && !this.state.isHovering) {
this._closePopover();
}
}