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Messages.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

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-->

<!DOCTYPE HTML>

<script>

// Global variable for the unread message count. Initialize from settings.

var unreadMessages = safari.extension.settings.unreadMessages;

// Set a interval to call newMessage every 20 seconds.

setInterval(newMessage, 20000);

// Register for the validate and command events.

safari.application.addEventListener("validate", performValidate, false);

safari.application.addEventListener("command", performCommand, false);

function performValidate(event)

    // Switch based on the command of the event. You should always check the command.

    switch (event.command) {

    case "show-messages":

        // Set the badge of the target, if the target has a badge property.

        // Some targets that send commands, like context menu items, don't have badges.

        if ("badge" in event.target)

            event.target.badge = unreadMessages;

        break;

function performCommand(event)

    // Switch based on the command of the event. You should always check the command.

    switch (event.command) {

    case "show-messages":

        // Show an alert with the number of messages.

        alert("You marked " + unreadMessages + " messages as read. Have a nice day!");

        // Reset the unread messages back to 0.

        updateUnreadMessageCount(0);

        break;

function validateToolbarItems()

    // Iterate over all the toolbar items and tell them to validate, so their

    // badge will be updated.

    var toolbarItems = safari.extension.toolbarItems;

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

        // Skip any toolbar item that is not the messages item. You should always

        // check the identifier, even if your extension only has one toolbar item.

        if (toolbarItems[i].identifier !== "messages")

            continue;

        // Calling validate will dispatch a validate event, which will call

        // performValidate for each toolbar item. This is the recommended method

        // of updating items instead of directly setting a badge here, so multiple

        // event listeners have a chance to validate the item.

        toolbarItems[i].validate();

// Function to update the unread messages count and toolbar item badges.

function updateUnreadMessageCount(count)

    // Set the unread message count.

    unreadMessages = count;

    // Store the value in settings so it persists between launches.

    safari.extension.settings.unreadMessages = unreadMessages;

    // Make all the toolbar items validate to update their badge.

    validateToolbarItems();

// Function that simulates a new message coming in.

function newMessage()

    updateUnreadMessageCount(unreadMessages + 1);

</script>

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