94 lines
2.3 KiB
JavaScript
94 lines
2.3 KiB
JavaScript
console.log("I'm alive")
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let previousContent = ""
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let listeningTabs = []
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let timer = null
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let options = defaultOptions
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browser.storage.local.get(defaultOptions)
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.then(o => options = o)
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browser.storage.onChanged.addListener((changes, area) => {
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if(area === "local") {
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const optionKeys = Object.keys(options)
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for(key of Object.keys(changes)) {
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if(optionKeys.indexOf(key) >= 0) {
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options[key] = changes[key].newValue
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}
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}
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updateTimer()
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}
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})
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browser.browserAction.onClicked.addListener(() => {
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browser.tabs.query({ active: true, currentWindow: true })
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.then(([t]) => toggleTab(t.id))
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})
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window.onload = () => {
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document.querySelector("#paste-target").addEventListener("paste", e => {
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if(e.clipboardData.getData("text/plain") === "") {
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e.preventDefault() // prevent anything that is not representable as plain text from being pasted
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}
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})
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}
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function toggleTab(id) {
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const index = listeningTabs.indexOf(id)
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if(index >= 0) {
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uninject(id)
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listeningTabs.splice(index, 1)
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updateTimer()
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browser.browserAction.setBadgeText({ text: "", tabId: id })
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} else {
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browser.tabs.executeScript({file: "/fg/insert.js"})
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listeningTabs.push(id)
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updateTimer()
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browser.browserAction.setBadgeBackgroundColor({ color: "green", tabId: id })
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browser.browserAction.setBadgeText({ text: "ON", tabId: id })
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}
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}
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function notifyForeground(id, text) {
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browser.tabs.sendMessage(id, {
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action: "insert", text, options
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})
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}
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function uninject(id) {
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browser.tabs.sendMessage(id, { action: "uninject" })
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}
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function checkClipboard() {
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const pasteTarget = document.querySelector("#paste-target")
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pasteTarget.textContent = ""
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pasteTarget.focus()
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document.execCommand("paste")
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const content = pasteTarget.textContent
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if(content != previousContent && content != "") {
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listeningTabs.forEach(id => notifyForeground(id, content))
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previousContent = content
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}
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}
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function updateTimer() {
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function stop() {
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clearInterval(timer.id)
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timer = null
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}
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function start() {
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const id = setInterval(checkClipboard, options.monitorInterval)
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timer = { id, interval: options.monitorInterval }
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}
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if(listeningTabs.length > 0) {
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if(timer === null) {
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start()
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} else if(timer.interval !== options.monitorInterval) {
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stop()
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start()
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}
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} else {
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stop()
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}
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}
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