export class StateHandler {
|
private condition: boolean = false;
|
private rejectCondition: (() => void) | null = null;
|
private resolveCondition: (() => void) | null = null;
|
|
// 清理 resolve/reject 函数
|
private clearPromises() {
|
this.resolveCondition = null;
|
this.rejectCondition = 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;
|
}
|
});
|
}
|
}
|
