mirror of
https://github.com/mdn/webextensions-examples.git
synced 2026-04-16 06:18:35 +02:00
70 lines
1.7 KiB
JavaScript
70 lines
1.7 KiB
JavaScript
var currentTab;
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var currentBookmark;
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/*
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* Updates the browserAction icon to reflect whether the current page
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* is already bookmarked.
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*/
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function updateIcon() {
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browser.browserAction.setIcon({
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path: currentBookmark ? {
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19: "icons/star-filled-19.png",
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38: "icons/star-filled-38.png"
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} : {
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19: "icons/star-empty-19.png",
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38: "icons/star-empty-38.png"
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},
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tabId: currentTab.id
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});
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}
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/*
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* Add or remove the bookmark on the current page.
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*/
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function toggleBookmark() {
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if (currentBookmark) {
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browser.bookmarks.remove(currentBookmark.id);
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currentBookmark = null;
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updateIcon();
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} else {
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var creating = browser.bookmarks.create({title: currentTab.title, url: currentTab.url});
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creating.then(function(bookmark) {
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currentBookmark = bookmark;
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updateIcon();
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});
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}
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}
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browser.browserAction.onClicked.addListener(toggleBookmark);
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/*
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* Switches currentTab and currentBookmark to reflect the currently active tab
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*/
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function updateActiveTab(tabs) {
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function updateTab(tabs) {
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if (tabs[0]) {
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currentTab = tabs[0];
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var searching = browser.bookmarks.search({url: currentTab.url});
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searching.then((bookmarks) => {
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currentBookmark = bookmarks[0];
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updateIcon();
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});
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}
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}
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var gettingActiveTab = browser.tabs.query({active: true, currentWindow: true});
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gettingActiveTab.then(updateTab);
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}
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// TODO listen for bookmarks.onCreated and bookmarks.onRemoved once Bug 1221764 lands
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// listen to tab URL changes
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browser.tabs.onUpdated.addListener(updateActiveTab);
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// listen to tab switching
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browser.tabs.onActivated.addListener(updateActiveTab);
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// update when the extension loads initially
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updateActiveTab();
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