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