{
  "name": "GopalOS Developer Manual",
  "icon": "\u{1F4D8}\uFE0F",
  "desc": "A reference for creators of GopalOS applications.",
  "id": "dev-manual",
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  <div class="window-title">GopalOS Developer Manual</div>
  <div class="window-controls">
    <div class="window-control window-control-minimize"><span>&#x1F5D5;</span></div>
    <div class="window-control window-control-maximize"><span>&#x1F5D6;</span></div>
    <div class="window-control window-control-close"><span>&#x274C;&#xFE0E;</span></div>
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      <div class="popup-menu-item" onclick="">Update/Reinstall&hellip;</div>
      <div class="popup-menu-item">Go to Page&hellip;</div>
      <div class="popup-menu-item" onclick="document.getElementById('app_dev-manual_window').querySelector('.window-control-close').click();">Exit</div>
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      <div class="popup-menu-item" onclick="msgbox('Version: ' + os.apps['dev-manual'].version, 'GopalOS Developer Manual');">About</div>
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      <div class="app_dev-manual_item" data-anchor="intro">Intro</div>
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      <div style="font-size: 30px; text-align: center;">GopalOS Developer Manual</div>
      <hr>
      <div style="font-size: 25px;" id="app_dev-manual_anchor-intro">Intro</div>
      <p>GopalOS is a web-based operating system with a JSON-based filesystem and programs such as a File Manager, Text Editor, search engine, and more!</p>
      <div style="font-size: 25px;">GopalOS File System</div>
      <p>Every file in GopalOS is in the following format:</p>
      <pre>[filename]: {
  type: filetype,
  content: filecontent,
  other: otherMetadata
}</pre>
      <p>Sometimes, <code>content</code> may be a function and be shortened from <code>content: function() {}</code> to <code>content() {}</code>. The <code>filetype</code> key has a string value containing the file extension in lowercase (e.g. <code>"txt"</code>). In GopalOS, there are three directories and one file on the root directory. The /version.var file is the only file that is allowed in the root directory. It contains a string representing the current version of GopalOS. The other three directories are <code>/home</code>, <code>/apps</code>, and <code>/system</code>, which store user-made files, application files, and system files.</p>
    <div style="font-size: 25px;">GopalOS Apps</div>
    <p>An app's files are stored in the <code>/apps</code> directory, with a folder name equal to that of the app ID. For example, File Manager's app ID is "file-manager" and its files are located in <code>/apps/file-manager</code>. The files in a basic app's (i.e. with a load script and standard window) directory is as follows:</p>
    <div><code>app-id.pgm</code>: This is the program file, which runs the load script, displays the window, and optionally registers a taskbar icon (to enable minimizing or pinning the program). The file name of the launch program <strong>must</strong> be the app ID. For example, File Manager's app ID is "file-manager" and its launch program is located at <code>/apps/file-manager/file-manager.pgm</code></div>
    <div style="margin-top: 10px;"><code>load.js</code>: This is the file that is usually run on program start. For example, in File Manager, it loads the list of files and displays them.</div>
    <div style="margin-top: 10px;"><code>window.html</code>: This is the file that contains the HTML markup code for the app's main window. The contents of this file will be injected into the <code>&lt;div id="windows"&gt;</code> element by the <code>load.js</code> file.</div>
    <div style="margin-top: 10px;"><code>install.js</code>: This optional file contains code that will be run when the app is installed (e.g. from Package Installer).</div>
    <div style="margin-top: 10px;"><code>uninstall.js</code>: This optional file contains code that will be run when the app is uninstalled (e.g. from Application Manager).</div>
    </div>
    <div id="app_dev-manual_statbar" style="position: absolute; bottom: 0; left: 0; padding: 2px; width: calc(100% - 4px); background: #EEE; font-size: 14px;">Ready</div>
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