initial commit

src/window-trackers/base-tracker.ts

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+/*
+  SubMiner - All-in-one sentence mining overlay
+  Copyright (C) 2024 sudacode
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { WindowGeometry } from "../types";
+
+export type GeometryChangeCallback = (geometry: WindowGeometry) => void;
+export type WindowFoundCallback = (geometry: WindowGeometry) => void;
+export type WindowLostCallback = () => void;
+
+export abstract class BaseWindowTracker {
+  protected currentGeometry: WindowGeometry | null = null;
+  protected windowFound: boolean = false;
+  public onGeometryChange: GeometryChangeCallback | null = null;
+  public onWindowFound: WindowFoundCallback | null = null;
+  public onWindowLost: WindowLostCallback | null = null;
+
+  abstract start(): void;
+  abstract stop(): void;
+
+  getGeometry(): WindowGeometry | null {
+    return this.currentGeometry;
+  }
+
+  isTracking(): boolean {
+    return this.windowFound;
+  }
+
+  protected updateGeometry(newGeometry: WindowGeometry | null): void {
+    if (newGeometry) {
+      if (!this.windowFound) {
+        this.windowFound = true;
+        if (this.onWindowFound) this.onWindowFound(newGeometry);
+      }
+
+      if (
+        !this.currentGeometry ||
+        this.currentGeometry.x !== newGeometry.x ||
+        this.currentGeometry.y !== newGeometry.y ||
+        this.currentGeometry.width !== newGeometry.width ||
+        this.currentGeometry.height !== newGeometry.height
+      ) {
+        this.currentGeometry = newGeometry;
+        if (this.onGeometryChange) this.onGeometryChange(newGeometry);
+      }
+    } else {
+      if (this.windowFound) {
+        this.windowFound = false;
+        this.currentGeometry = null;
+        if (this.onWindowLost) this.onWindowLost();
+      }
+    }
+  }
+}