state-handler.ts
1.16 KB
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export class StateHandler {
private condition: boolean = false;
private rejectCondition: (() => void) | null = null;
private resolveCondition: (() => void) | null = null;
isConditionTrue(): boolean {
return this.condition;
}
reset() {
this.condition = false;
this.clearPromises();
}
// 触发状态为 false 时，reject
setConditionFalse() {
this.condition = false;
if (this.rejectCondition) {
this.rejectCondition();
this.clearPromises();
}
}
// 触发状态为 true 时，resolve
setConditionTrue() {
this.condition = true;
if (this.resolveCondition) {
this.resolveCondition();
this.clearPromises();
}
}
// 返回一个 Promise，等待 condition 变为 true
waitForCondition(): Promise<void> {
return new Promise((resolve, reject) => {
if (this.condition) {
resolve(); // 如果 condition 已经为 true，立即 resolve
} else {
this.resolveCondition = resolve;
this.rejectCondition = reject;
}
});
}
// 清理 resolve/reject 函数
private clearPromises() {
this.resolveCondition = null;
this.rejectCondition = null;
}
}