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CustomizeReader.safariextension/global.html

<!--

    File: global.html

Abstract: Global Page HTML file.

 Version: 1.0

Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple

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terms, and your use, installation, modification or redistribution of

this Apple software constitutes acceptance of these terms.  If you do

not agree with these terms, please do not use, install, modify or

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In consideration of your agreement to abide by the following terms, and

subject to these terms, Apple grants you a personal, non-exclusive

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Software, with or without modifications, in source and/or binary forms;

provided that if you redistribute the Apple Software in its entirety and

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Neither the name, trademarks, service marks or logos of Apple Inc. may

be used to endorse or promote products derived from the Apple Software

without specific prior written permission from Apple.  Except as

expressly stated in this notice, no other rights or licenses, express or

implied, are granted by Apple herein, including but not limited to any

patent rights that may be infringed by your derivative works or by other

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The Apple Software is provided by Apple on an "AS IS" basis.  APPLE

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.

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Copyright (C) 2012 Apple Inc. All Rights Reserved.

-->

<!DOCTYPE html>

<script>

// Restore the user setting when Safari launches or the extension is enabled.

var initialFont = safari.extension.settings.font;

if (initialFont !== "default") {

    // Restrict the Content Style Sheet to all Reader pages by use of the whitelist.

    safari.extension.addContentStyleSheetFromURL(safari.extension.baseURI + initialFont + ".css", ["safari-reader://*/*"]);

// Listen for the user changing the font preference.

safari.extension.settings.addEventListener("change", handleSettingsChanged, false);

function handleSettingsChanged(event)

    if (!event.key === "font")

        return;

    // Stop using the old Content Style Sheet (if any) and add the new one (if needed).

    if (event.oldValue !== "default")

        safari.extension.removeContentStyleSheet(safari.extension.baseURI + event.oldValue + ".css");

    if (event.newValue !== "default") {

        // Restrict the Content Style Sheet to all Reader pages by use of the whitelist.

        safari.extension.addContentStyleSheetFromURL(safari.extension.baseURI + event.newValue + ".css", ["safari-reader://*/*"]);

    // Example of dispatching a message to a Content Script injected into Reader.

    var browserWindows = safari.application.browserWindows;

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

        var tabs = browserWindows[i].tabs;

        for (var j = 0; j < tabs.length; ++j) {

            var tab = tabs[j];

            if (!tab.reader.visible)

                continue;

            tab.reader.dispatchMessage("Message to the Content Scripts injected into Reader");

// Example of handling a message from a Content Script injected into Reader.

safari.application.addEventListener("message", handleMessage, false);

function handleMessage(event)

    // To distinguish whether a message came from a Content Script injected into Reader or a Content

    // Script injected into the web page, check if the target is a SafariReader object.

    if (event.target instanceof SafariReader)

        console.log("Received acknowledgment from a Content Script injected into Reader for " + event.target.tab.url);

</script>

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