Reorganize cast sender code

ext/src/lib/loadSender.ts

@@ -1,81 +0,0 @@
-"use strict";
-
-import logger from "./logger";
-import { stringify } from "./utils";
-
-import {
-    ReceiverSelection,
-    ReceiverSelectionActionType,
-    ReceiverSelectorMediaType
-} from "../background/receiverSelector";
-
-import CastManager from "../cast/CastManager";
-
-interface LoadSenderOptions {
-    tabId: number;
-    frameId?: number;
-    selection: ReceiverSelection;
-}
-
-/**
- * Loads the appropriate sender for a given receiver
- * selector response.
- */
-export default async function loadSender(opts: LoadSenderOptions) {
-    // Cancelled
-    if (!opts.selection) {
-        return;
-    }
-
-    if (opts.selection.actionType !== ReceiverSelectionActionType.Cast) {
-        return;
-    }
-
-    switch (opts.selection.mediaType) {
-        case ReceiverSelectorMediaType.App: {
-            const instance = CastManager.getInstance(opts.tabId, opts.frameId);
-            if (!instance) {
-                throw logger.error(
-                    `Cast instance not found at tabId ${opts.tabId} / frameId ${opts.frameId}`
-                );
-            }
-
-            instance.contentPort.postMessage({
-                subject: "cast:launchApp",
-                data: { receiverDevice: opts.selection.receiverDevice }
-            });
-
-            break;
-        }
-
-        case ReceiverSelectorMediaType.Tab:
-        case ReceiverSelectorMediaType.Screen: {
-            await browser.tabs.executeScript(opts.tabId, {
-                code: stringify`
-                    window.selectedMedia = ${opts.selection.mediaType};
-                    window.selectedReceiver = ${opts.selection.receiverDevice};
-                `,
-                frameId: opts.frameId
-            });
-
-            await browser.tabs.executeScript(opts.tabId, {
-                file: "senders/mirroring.js",
-                frameId: opts.frameId
-            });
-
-            break;
-        }
-
-        case ReceiverSelectorMediaType.File: {
-            const fileUrl = new URL(`file://${opts.selection.filePath}`);
-            const { init } = await import("../senders/media");
-
-            init({
-                mediaUrl: fileUrl.href,
-                receiver: opts.selection.receiverDevice
-            });
-
-            break;
-        }
-    }
-}