alexion
4def357d09
Imported as a linear vendor commit so forge rebases do not replay the upstream root tree. git-subtree-dir: third_party/pi git-subtree-split: d981de1229ef899957bbe968bc8dcda02a21f477
34 lines
902 B
TypeScript
34 lines
902 B
TypeScript
import {
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type Component,
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dispatchMouseEvent,
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type TuiMouseDispatchResult,
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type TuiMouseEvent,
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type TuiMouseEventResult,
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} from "../tui.ts";
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export type MouseRegionHandler = (event: TuiMouseEvent) => TuiMouseEventResult | undefined;
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/** Adds mouse handling to an existing component without changing its rendering. */
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export class MouseRegion implements Component {
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private readonly child: Component;
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private readonly onMouse: MouseRegionHandler;
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constructor(child: Component, onMouse: MouseRegionHandler) {
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this.child = child;
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this.onMouse = onMouse;
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}
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render(width: number): string[] {
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return this.child.render(width);
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}
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handleMouse(event: TuiMouseEvent): TuiMouseDispatchResult | TuiMouseEventResult | undefined {
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const childResult = dispatchMouseEvent(this.child, event);
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return childResult ?? this.onMouse(event);
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}
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invalidate(): void {
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this.child.invalidate();
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}
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}
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