82 lines
1.7 KiB
JavaScript
82 lines
1.7 KiB
JavaScript
console.debug("Loading foreground.js")
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let background;
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function handleMessage(message)
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{
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if (typeof message == "object" && "type" in message)
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{
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let type = message.type;
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lastPeriod = type.lastIndexOf(".");
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if (lastPeriod != -1)
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{
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type = type.substring(lastPeriod + 1);
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}
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switch (type)
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{
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case "QueryStatus":
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return getState();
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case "QueryTime":
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return getTime();
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case "QueryLength":
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return getLength();
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case "CommandSetPlayback":
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switch (message.status)
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{
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case "PLAY":
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return play();
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case "PAUSE":
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return pause();
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}
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return false;
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case "CommandSeek":
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return seek(message.time);
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}
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}
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}
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function sendUpdate(response)
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{
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post = data => background.postMessage({
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type: "update",
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data: data
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});
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if (response instanceof Promise)
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{
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response.then(post);
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}
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else
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{
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post(response);
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}
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}
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background = browser.runtime.connect({name:"universalMusic"});
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background.onMessage.addListener(message => {
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let num = message.num;
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response = handleMessage(message.data);
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post = data => background.postMessage({
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type: "response",
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num: num,
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data: data
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});
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if (response instanceof Promise)
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{
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response.then(post);
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}
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else
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{
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post(response);
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}
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});
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if (document.readyState === "complete")
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{
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sendUpdate("loaded");
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}
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else
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{
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sendUpdate("loaded");
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window.addEventListener("load", () => {
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sendUpdate("loaded");
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});
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} |