emscripten/template.html

<!doctype html>
<html lang="en-us">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>RetroArch - Template</title>
    <style>
      .emscripten { padding-right: 0; margin-left: auto; margin-right: auto; display: block; }
      textarea.emscripten { font-family: monospace; width: 80%; }
      div.emscripten, h1 { text-align: center; }
      div.emscripten_border { border: 1px solid black; }
      #fakerom { font-size: 20pt; margin: 5pt;}
      /* the canvas *must not* have any border or padding, or mouse coords will be wrong */
      canvas.emscripten { border: 0px none; }
    </style>
  </head>
  <body>
    <h1>Template</h1>
    <hr/>
    <div class="emscripten" id="status">Downloading...</div>
    <div class="emscripten">
      <progress value="0" max="100" id="progress" hidden=1></progress>  
    </div>
    <div class="emscripten_border" id="canvas_div" style="display: none">
      <canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()"></canvas>
    </div>
    <div class="emscripten emscripten_border" id="openrom">
      <button id="fakerom" onclick="document.getElementById('rom').click()">Select a ROM</button>
      <input style="display: none" type="file" id="rom" name="upload" onclick="document.getElementById('fakerom').click();" onchange="runEmulator(event.target.files);" multiple />
    </div>
    <hr/>
    <div class="emscripten">
      
      <input type="checkbox" id="resize"><label for="resize">Resize canvas</label>
      <input type="checkbox" id="pointerLock" checked><label for="pointerLock">Lock/hide mouse pointer</label>
      &nbsp;&nbsp;&nbsp;
      <input type="button" value="Fullscreen" onclick="Module.requestFullScreen(document.getElementById('pointerLock').checked, 
                                                                                document.getElementById('resize').checked)"><br>
      <input type="checkbox" id="vsync"><label for="vsync" id="vsync-label">Enable V-sync (can only be done before loading game)</label><br>
      <input type="textbox" id="latency" size="3" maxlength="3" value="96"> <label for="latency" id="latency-label">Audio latency (ms) (increase if you hear pops at fullspeed, can only be done before loading game)</label>
    </div>
    
    <hr/>
    <textarea class="emscripten" id="output" rows="8"></textarea>
    <hr>
    <div class="emscripten" id="controls">
      Controls:<br>
      <br>
      A button (OK in menu): X<br>
      B button (Back in menu): Z<br>
      X Button: S<br>
      Y Button: A<br>
      L Button: Q<br>
      R Button: W<br>
      D-pad: Arrow Keys<br>
      Start Button: Enter<br>
      Select Button: Shift<br>
      Toggle Menu: F1<br>
      Fast forward: Spacebar (toggle)<br>
      Slow motion: E (hold)</br>
      Save state: F2<br>
      Load state: F4
    </div>
    <script type='text/javascript'>
      var count = 0;
      function runEmulator(files){
        count = files.length;
        document.getElementById("openrom").innerHTML = '';
        document.getElementById("openrom").style.display = 'none';
        for (var i = 0; i < files.length; i++) {
          filereader = new FileReader();
          filereader.file_name = files[i].name;
          filereader.onload = function(){initFromData(this.result, this.file_name)};
          filereader.readAsArrayBuffer(files[i]);
        }
      }

      function initFromData(data, name){
        var dataView = new Uint8Array(data);
        Module.FS_createDataFile('/', name, dataView, true, false);
        count--;
        if (count === 0) {
          Module.FS_createFolder('/', 'etc', true, true);
          var config = 'input_player1_select = shift\n';
          var latency = parseInt(document.getElementById('latency').value, 10);
          if (isNaN(latency)) latency = 96;
          config += 'audio_latency = ' + latency + '\n'
          if (document.getElementById('vsync').checked)
            config += 'video_vsync = true\n';
          else
            config += 'video_vsync = false\n';
          Module.FS_createDataFile('/etc', 'retroarch.cfg', config, true, true);
          document.getElementById('canvas_div').style.display = 'block';
          document.getElementById('vsync').disabled = true;
          document.getElementById('vsync-label').style.color = 'gray';
          document.getElementById('latency').disabled = true;
          document.getElementById('latency-label').style.color = 'gray';
          Module['callMain'](Module['arguments']);
        }
      }
    </script>
    <script type='text/javascript'>
      // connect to canvas
      var Module = {
	     noInitialRun: true,
		  arguments: ["-v", "--menu"],
        preRun: [],
        postRun: [],
        print: (function() {
          var element = document.getElementById('output');
          element.value = ''; // clear browser cache
          return function(text) {
            text = Array.prototype.slice.call(arguments).join(' ');
            // These replacements are necessary if you render to raw HTML
            //text = text.replace(/&/g, "&amp;");
            //text = text.replace(/</g, "&lt;");
            //text = text.replace(/>/g, "&gt;");
            //text = text.replace('\n', '<br>', 'g');
            element.value += text + "\n";
            element.scrollTop = 99999; // focus on bottom
          };
        })(),
        printErr: function(text) {
          var text = Array.prototype.slice.call(arguments).join(' ');
          var element = document.getElementById('output');
          element.value += text + "\n";
          element.scrollTop = 99999; // focus on bottom
        },
        canvas: document.getElementById('canvas'),
        setStatus: function(text) {
          if (Module.setStatus.interval) clearInterval(Module.setStatus.interval);
          var m = text.match(/([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/);
          var statusElement = document.getElementById('status');
          var progressElement = document.getElementById('progress');
          if (m) {
            text = m[1];
            progressElement.value = parseInt(m[2])*100;
            progressElement.max = parseInt(m[4])*100;
            progressElement.hidden = false;
          } else {
            progressElement.value = null;
            progressElement.max = null;
            progressElement.hidden = true;
          }
          statusElement.innerHTML = text;
        },
        totalDependencies: 0,
        monitorRunDependencies: function(left) {
          this.totalDependencies = Math.max(this.totalDependencies, left);
          Module.setStatus(left ? 'Preparing... (' + (this.totalDependencies-left) + '/' + this.totalDependencies + ')' : 'All downloads complete.');
        }
      };
      Module.setStatus('Downloading...');
    </script>
	<script type="text/javascript" src="retroarch.js"></script>