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const internals = {
promisesSupported: !!window.browser,
injectedScript: {},
port: null,
currentUrl: null,
icons: {
call: {
16: "icons/action-16.png",
32: "icons/action-32.png",
},
hangUp: {
16: "icons/hang_up-16.png",
32: "icons/hang_up-32.png",
},
},
onClick() {
if (internals.isInCall()) {
return internals.hangUp();
}
return internals.initializeContentScript();
},
joinAudioCall() {
internals.port.postMessage({
action: "joinAudioCall",
data: {
currentUrl: internals.currentUrl,
tada: internals.getRoot().runtime.getURL("sounds/tada.wav"),
},
});
internals.getRoot().browserAction.enable();
internals.setIcon("hangUp");
},
onConnect(port) {
internals.port = port;
port.onDisconnect.addListener(internals.onDisconnect);
port.onMessage.addListener(internals.onMessage);
internals.joinAudioCall();
},
onMessage(message) {
if (message.action === "error") {
internals.getRoot().browserAction.setBadgeText({ text: "x" }, () => {});
}
},
onDisconnect() {
internals.getRoot().browserAction.setBadgeText({ text: "" }, () => {});
internals.setIcon("call");
internals.currentUrl = null;
internals.port = null;
internals.getRoot().browserAction.enable();
},
async initializeContentScript() {
internals.getRoot().browserAction.disable();
const activeTabs = await internals.getActiveTabs();
internals.currentUrl = activeTabs[0].url;
const id = activeTabs[0].id;
if (!internals.injectedScript[id]) {
const execution = await internals.getRoot().tabs.executeScript(
activeTabs[0].id,
{
file: "/build/content_script.js",
},
() => {
internals.injectedScript[id] = true;
},
);
if (execution && !execution[0]) {
internals.onDisconnect();
}
} else {
internals.getRoot().tabs.connect(activeTabs[0].id);
}
},
hangUp() {
internals.getRoot().browserAction.disable();
internals.port.postMessage({
action: "hangUp",
});
},
isInCall() {
return !!internals.port;
},
setIcon(iconSet) {
internals.getRoot().browserAction.setIcon({
path: internals.icons[iconSet],
});
},
getRoot() {
return window.browser || window.chrome;
},
// Chrome doesn't yet implement the promise based tabs.query :'(
getActiveTabs() {
const query = {
currentWindow: true,
active: true,
};
if (internals.promisesSupported) {
return internals.getRoot().tabs.query(query);
}
return new Promise((resolve) => {
internals.getRoot().tabs.query(query, (tabs) => {
return resolve(tabs);
});
});
},
};
internals.getRoot().browserAction.onClicked.addListener(internals.onClick);
internals.getRoot().runtime.onConnect.addListener(internals.onConnect);
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