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UnreadTabs.safariextension/global.html

<!--

    File: global.html

Abstract: Global page HTML file.

 Version: 1.0

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MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION

THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS

FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND

OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.

IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL

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Copyright (C) 2011 Apple Inc. All Rights Reserved.

-->

<!DOCTYPE HTML>

<script>

var unreadTabs = [];

safari.application.addEventListener("open", openHandler, true);

safari.application.addEventListener("close", closeHandler, true);

safari.application.addEventListener("activate", activateHandler, true);

safari.application.addEventListener("validate", validateHandler, true);

safari.application.addEventListener("command", commandHandler, true);

safari.application.addEventListener("menu", menuHandler, true);

function openHandler(event)

    // Open events are sent for both windows and tabs. When a tab is opened, keep track of it in

    // the list of unread tabs until it has been read (activated) or closed.

    if (event.target instanceof SafariBrowserTab)

        unreadTabs.push(event.target);

function removeTabFromUnreadTabs(tab)

    var index = unreadTabs.indexOf(tab);

    if (index === -1)

        return;

    unreadTabs.splice(index, 1);

function closeHandler(event)

    // Close events are sent for both windows and tabs.

    if (event.target instanceof SafariBrowserTab)

        removeTabFromUnreadTabs(event.target);

function activateHandler(event)

    // Activate events are sent for both windows and tabs.

    if (event.target instanceof SafariBrowserTab) {

        // Once a tab has been activated, the user has seen its contents. Remove it from the list

        // of unread tabs.

        removeTabFromUnreadTabs(event.target);

function validateHandler(event)

    // Check the command to determine if the validate event is for the toolbar item, since validate

    // events will also be sent for menu items.

    if (event.command !== "unreadTabs")

        return;

    var toolbarItem = event.target;

    var unreadTabsInWindow = 0;

    for (var i = 0; i < unreadTabs.length; ++i) {

        const tab = unreadTabs[i];

        // Count only the tabs in the window which is showing this instance of the toolbar item.

        if (tab.browserWindow === toolbarItem.browserWindow)

            ++unreadTabsInWindow;

    toolbarItem.disabled = !unreadTabsInWindow;

    toolbarItem.badge = unreadTabsInWindow ? unreadTabsInWindow : null;

function commandHandler(event)

    // Handle the command event sent when the "Close all read tabs" menu item is selected.

    if (event.command === "closeAllReadTabs") {

        var readTabs = [];

        // Gather all the read tabs before closing them so that we don't accidentally activate and

        // then remove a tab the user has not read in the process of closing all read tabs.

        var currentTabs = safari.application.activeBrowserWindow.tabs;

        for (var i = 0; i < currentTabs.length; ++i) {

            var currentTab = currentTabs[i];

            if (unreadTabs.indexOf(currentTab) !== -1)

                continue;

            readTabs.push(currentTab);

        for (var i = 0; i < readTabs.length; ++i)

            readTabs[i].close();

        return;

    // Handle the command events sent when one of the unread tab menu items is selected.

    // In menuHandler, the identifier, and therefore the command, was set to be the index into

    // the list of unread tabs.

    if (event.command in unreadTabs)

        unreadTabs[event.command].activate();

function menuHandler(event)

    // Remove all the menu items except the one for closing all the read tabs.

    while (event.target.menuItems.length - 1)

        event.target.removeMenuItem(1);

    if (!unreadTabs.length)

        return;

    // Add a separator so that the user doesn't confuse "Close all read tabs" with just another

    // unread tab.

    event.target.appendSeparator("unreadTabsSection");

    // Add a menu item for each unread tab.

    for (var i = 0; i < unreadTabs.length; ++i) {

        const tab = unreadTabs[i];

        // Only add a menu item for the tabs in the window which is showing this instance of the

        // menu.

        if (tab.browserWindow === safari.application.activeBrowserWindow) {

            // Create a new menu item, using the index into the list of unread tabs as the

            // identifier and the title of the tab as the title of the menu item.

            var menuItem = event.target.appendMenuItem(i, tab.title);

            // Use the favicon of the site currently being displayed in the tab as the image for

            // the menu item, if there is one. This will not work for all sites, since not all

            // sites place their favicon at top level.

            menuItem.image = "http" + tab.url.match(/:\/\/(.[^/]+)/)[0] + "/favicon.ico";

</script>

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