Added app suspension inhibitors when music is playing. fixes #257

src/features/idleInhibitor/idleInhibitor.ts

@@ -0,0 +1,65 @@
+import { PowerSaveBlocker, powerSaveBlocker } from "electron";
+import { Logger } from "../logger";
+
+/**
+ * Start blocking idle/screen timeouts
+ * @param blocker optional instance of the powerSaveBlocker to use
+ * @returns id of current block
+ */
+export const acquireInhibitor = (blocker?: PowerSaveBlocker): number => {
+  const currentBlocker = blocker ?? powerSaveBlocker;
+  const blockId = currentBlocker.start("prevent-app-suspension");
+  Logger.log(`Started preventing app suspension with id: ${blockId}`);
+  return blockId;
+};
+
+/**
+ * Check whether there is a blocker active for the current id, if not start it.
+ * @param id id of inhibitor you want to check activity against
+ * @param blocker optional instance of the powerSaveBlocker to use
+ */
+export const acquireInhibitorIfInactive = (id: number, blocker?: PowerSaveBlocker): number => {
+  const currentBlocker = blocker ?? powerSaveBlocker;
+  if (!isInhibitorActive(id, currentBlocker)) {
+    return acquireInhibitor();
+  }
+
+  return id;
+};
+
+/**
+ * stop blocking idle/screen timeouts
+ * @param id id of inhibitor you want to check activity against
+ * @param blocker optional instance of the powerSaveBlocker to use
+ */
+export const releaseInhibitor = (id: number, blocker?: PowerSaveBlocker) => {
+  try {
+    const currentBlocker = blocker ?? powerSaveBlocker;
+    currentBlocker.stop(id);
+    Logger.log(`Released inhibitor with id: ${id}`);
+  } catch (error) {
+    Logger.log("Releasing inhibitor failed");
+  }
+};
+
+/**
+ * stop blocking idle/screen timeouts if a inhibitor is active
+ * @param id id of inhibitor you want to check activity against
+ * @param blocker optional instance of the powerSaveBlocker to use
+ */
+export const releaseInhibitorIfActive = (id: number, blocker?: PowerSaveBlocker) => {
+  const currentBlocker = blocker ?? powerSaveBlocker;
+  if (isInhibitorActive(id, currentBlocker)) {
+    releaseInhibitor(id, currentBlocker);
+  }
+};
+
+/**
+ * check whether the inhibitor is active
+ * @param id id of inhibitor you want to check activity against
+ * @param blocker optional instance of the powerSaveBlocker to use
+ */
+export const isInhibitorActive = (id: number, blocker?: PowerSaveBlocker) => {
+  const currentBlocker = blocker ?? powerSaveBlocker;
+  return currentBlocker.isStarted(id);
+};