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authorJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-16 18:49:26 +0900
committerJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-30 00:39:06 +0900
commitfcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch)
tree64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/nacl/example.html
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+<!DOCTYPE html>
+<html>
+<head>
+ <title>Ruby Example</title>
+
+ <script type="text/javascript">
+ RubyModule = null; // Global application object.
+ statusText = 'NO-STATUS';
+ rubyReady = false;
+
+ // Indicate load success.
+ function moduleDidLoad() {
+ RubyModule = document.getElementById('ruby');
+ form = document.getElementById('source-form');
+ form.style.display = "block";
+ updateStatus('SUCCESS');
+ }
+
+ function evalSource() {
+ if (rubyReady) {
+ RubyModule.postMessage('eval:' + document.getElementById("source").value);
+ } else {
+ throw "Not yet ready";
+ }
+ return false;
+ }
+
+ function RubyError(message) {
+ this.message = message;
+ this.toString = function() {
+ return message;
+ }
+ }
+
+ function FatalError(message) {
+ this.message = message;
+ }
+
+ // The 'message' event handler. This handler is fired when the NaCl module
+ // posts a message to the browser by calling PPB_Messaging.PostMessage()
+ // (in C) or pp::Instance.PostMessage() (in C++). This implementation
+ // simply displays the content of the message in an alert panel.
+ function handleMessage(message_event) {
+ var raw = message_event.data;
+ var components;
+ if (raw.indexOf("error") == 0) {
+ components = raw.split(":", 2);
+ throw new RubyError(components[1]);
+ } else if (raw.indexOf("return") == 0) {
+ components = raw.split(":", 2);
+ document.getElementById("result").value = components[1];
+ } else if (raw == "rubyReady") {
+ rubyReady = true;
+ } else {
+ throw new FatalError(raw);
+ }
+ }
+
+ // If the page loads before the Native Client module loads, then set the
+ // status message indicating that the module is still loading. Otherwise,
+ // do not change the status message.
+ function pageDidLoad() {
+ if (RubyModule == null) {
+ updateStatus('LOADING...');
+ } else {
+ // It's possible that the Native Client module onload event fired
+ // before the page's onload event. In this case, the status message
+ // will reflect 'SUCCESS', but won't be displayed. This call will
+ // display the current message.
+ updateStatus();
+ }
+ }
+
+ // Set the global status message. If the element with id 'statusField'
+ // exists, then set its HTML to the status message as well.
+ // opt_message The message test. If this is null or undefined, then
+ // attempt to set the element with id 'statusField' to the value of
+ // |statusText|.
+ function updateStatus(opt_message) {
+ if (opt_message)
+ statusText = opt_message;
+ var statusField = document.getElementById('status_field');
+ if (statusField) {
+ statusField.innerHTML = statusText;
+ }
+ }
+ </script>
+</head>
+<body onload="pageDidLoad()">
+
+<h1>Native Client Module Ruby</h1>
+<p>
+ <!-- Load the published .nexe. This includes the 'nacl' attribute which
+ shows how to load multi-architecture modules. Each entry in the "nexes"
+ object in the .nmf manifest file is a key-value pair: the key is the
+ instruction set architecture ('x86-32', 'x86-64', etc.); the value is a URL
+ for the desired NaCl module.
+ To load the debug versions of your .nexes, set the 'nacl' attribute to the
+ _dbg.nmf version of the manifest file.
+
+ Note: Since this NaCl module does not use any real-estate in the browser,
+ it's width and height are set to 0.
+
+ Note: The <EMBED> element is wrapped inside a <DIV>, which has both a 'load'
+ and a 'message' event listener attached. This wrapping method is used
+ instead of attaching the event listeners directly to the <EMBED> element to
+ ensure that the listeners are active before the NaCl module 'load' event
+ fires. This also allows you to use PPB_Messaging.PostMessage() (in C) or
+ pp::Instance.PostMessage() (in C++) from within the initialization code in
+ your NaCl module.
+ -->
+ <div id="listener">
+ <script type="text/javascript">
+ var listener = document.getElementById('listener');
+ listener.addEventListener('load', moduleDidLoad, true);
+ listener.addEventListener('message', handleMessage, true);
+ </script>
+
+ <embed name="nacl_module"
+ id="ruby"
+ width="0" height="0"
+ src="ruby.nmf"
+ type="application/x-nacl" />
+ <form id="source-form" action="#" method="post" style="display:none"
+ onsubmit="evalSource(); return false">
+ <table>
+ <tbody>
+ <tr>
+ <th>Source</th>
+ <td>
+ <textarea rows="10" cols="80" id="source"></textarea>
+ <input type="submit" />
+ </td>
+ </tr>
+ <tr>
+ <th>Result</th>
+ <td>
+ <textarea rows="10" cols="80" id="result"></textarea>
+ </td>
+ </tr>
+ </tbody>
+ </table>
+ </form>
+ </div>
+</p>
+
+<h2>Status</h2>
+<div id="status_field">NO-STATUS</div>
+</body>
+</html>