examples: Added initial examples infrastructure.

2026-02-17 09:04:07 +00:00 · 2024-07-22 22:38:21 -04:00
parent 2f6e34d2d0
commit 5339b4458d
6 changed files with 569 additions and 0 deletions
--- a/examples/template.html
+++ b/examples/template.html
@@ -0,0 +1,117 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <title>@project_name@ Example: @category_name@/@example_name@</title>
+    <style>
+      body {
+        font-family: arial;
+        margin: 0;
+        padding: none;
+      }
+
+      .emscripten { padding-right: 0; margin-left: auto; margin-right: auto; display: block; }
+      div.emscripten { text-align: center; }      
+      div.emscripten_border { border: 1px solid black; }
+      /* the canvas *must not* have any border or padding, or mouse coords will be wrong */
+      canvas.emscripten { border: 0px none; background-color: black; }
+
+      @-webkit-keyframes rotation {
+        from {-webkit-transform: rotate(0deg);}
+        to {-webkit-transform: rotate(360deg);}
+      }
+      @-moz-keyframes rotation {
+        from {-moz-transform: rotate(0deg);}
+        to {-moz-transform: rotate(360deg);}
+      }
+      @-o-keyframes rotation {
+        from {-o-transform: rotate(0deg);}
+        to {-o-transform: rotate(360deg);}
+      }
+      @keyframes rotation {
+        from {transform: rotate(0deg);}
+        to {transform: rotate(360deg);}
+      }
+
+      #output {
+        width: 100%;
+        height: 200px;
+        margin: 0 auto;
+        margin-top: 10px;
+        border-left: 0px;
+        border-right: 0px;
+        padding-left: 0px;
+        padding-right: 0px;
+        display: none;
+        background-color: black;
+        color: white;
+        font-family: 'Lucida Console', Monaco, monospace;
+        outline: none;
+      }
+
+      .source_code {
+      }
+    </style>
+    <link rel="stylesheet" type="text/css" href="highlight.css">
+  </head>
+  <body>
+    <div class="emscripten_border">
+      <canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()" tabindex=-1></canvas>
+    </div>
+    <textarea id="output" rows="8"></textarea>
+
+    <div class="source_code">@htmlified_source_code@</div>
+
+    <script type='text/javascript'>
+      var Module = {
+        preRun: [],
+        postRun: [],
+        print: (function() {
+          var element = document.getElementById('output');
+          if (element) element.value = ''; // clear browser cache
+          return function(text) {
+            if (arguments.length > 1) 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');
+            console.log(text);
+            if (element) {
+              element.value += text + "\n";
+              element.scrollTop = element.scrollHeight; // focus on bottom
+            }
+          };
+        })(),
+        canvas: (() => {
+          var canvas = document.getElementById('canvas');
+
+          // As a default initial behavior, pop up an alert when webgl context is lost. To make your
+          // application robust, you may want to override this behavior before shipping!
+          // See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2
+          canvas.addEventListener("webglcontextlost", (e) => { alert('WebGL context lost. You will need to reload the page.'); e.preventDefault(); }, false);
+
+          return canvas;
+        })(),
+        setStatus: (text) => {},
+        totalDependencies: 0,
+        monitorRunDependencies: (left) => {
+          this.totalDependencies = Math.max(this.totalDependencies, left);
+          Module.setStatus(left ? 'Preparing... (' + (this.totalDependencies-left) + '/' + this.totalDependencies + ')' : 'All downloads complete.');
+        }
+      };
+      Module.setStatus('Downloading...');
+      window.onerror = (event) => {
+        // TODO: do not warn on ok events like simulating an infinite loop or exitStatus
+        Module.setStatus('Exception thrown, see JavaScript console');
+        Module.setStatus = (text) => {
+          if (text) console.error('[post-exception status] ' + text);
+        };
+      };
+    </script>
+    <script async type="text/javascript" src="index.js"></script>
+  </body>
+</html>
+
+