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Restructure background script (#70)

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Splits some background script functionality into separate modules:
 - Receiver selector handling is moved to ./SelectorManager.
 - Status bridge handling is moved to ./StatusManager.
 - Menu creation and updates are handled in ./createMenus.
 - Shim creation is handled in ./createShim.

TypedEventTarget allows EventTarget-derived classes to export typed events.

Options type definition is moved to ./lib/options, module assumes more responsibility for update handling and provides a "changed" event.

Private cast._requestSession method allows bypassing receiver selector.
This commit is contained in:
Matt Hensman
2019-07-26 00:09:51 +01:00
committed by GitHub
parent 2fe72ed24c
commit ba8c28bf39
40 changed files with 1751 additions and 1241 deletions
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18
ext/src/shim/contentBridge.ts
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@@ -1,6 +1,7 @@
"use strict";
import { loadScript } from "../lib/utils";
import { Message } from "../types";
import { onMessageResponse, sendMessage } from "./eventMessageChannel";
@@ -17,12 +18,17 @@ if (isFramework) {
// Message port to background script
const backgroundPort = browser.runtime.connect({ name: "shim" });
export const backgroundPort = browser.runtime.connect({ name: "shim" });
// Forward background messages to shim
backgroundPort.onMessage.addListener(sendMessage);
const forwardToShim = (message: Message) => sendMessage(message);
const forwardToMain = (message: Message) => backgroundPort.postMessage(message);
// Forward shim messages to background
onMessageResponse(message => {
backgroundPort.postMessage(message);
// Add message listeners
backgroundPort.onMessage.addListener(forwardToShim);
const listener = onMessageResponse(forwardToMain);
// Remove listeners
backgroundPort.onDisconnect.addListener(() => {
backgroundPort.onMessage.removeListener(forwardToShim);
listener.disconnect();
});