github.com/powerman/golang-tools@v0.1.11-0.20220410185822-5ad214d8d803/godoc/static/play.js (about)

     1  // Copyright 2012 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  function initPlayground(transport) {
     6    'use strict';
     7  
     8    function text(node) {
     9      var s = '';
    10      for (var i = 0; i < node.childNodes.length; i++) {
    11        var n = node.childNodes[i];
    12        if (n.nodeType === 1) {
    13          if (n.tagName === 'BUTTON') continue;
    14          if (n.tagName === 'SPAN' && n.className === 'number') continue;
    15          if (n.tagName === 'DIV' || n.tagName === 'BR' || n.tagName === 'PRE') {
    16            s += '\n';
    17          }
    18          s += text(n);
    19          continue;
    20        }
    21        if (n.nodeType === 3) {
    22          s += n.nodeValue;
    23        }
    24      }
    25      return s.replace('\xA0', ' '); // replace non-breaking spaces
    26    }
    27  
    28    // When presenter notes are enabled, the index passed
    29    // here will identify the playground to be synced
    30    function init(code, index) {
    31      var output = document.createElement('div');
    32      var outpre = document.createElement('pre');
    33      var running;
    34  
    35      if ($ && $(output).resizable) {
    36        $(output).resizable({
    37          handles: 'n,w,nw',
    38          minHeight: 27,
    39          minWidth: 135,
    40          maxHeight: 608,
    41          maxWidth: 990,
    42        });
    43      }
    44  
    45      function onKill() {
    46        if (running) running.Kill();
    47        if (window.notesEnabled) updatePlayStorage('onKill', index);
    48      }
    49  
    50      function onRun(e) {
    51        var sk = e.shiftKey || localStorage.getItem('play-shiftKey') === 'true';
    52        if (running) running.Kill();
    53        output.style.display = 'block';
    54        outpre.textContent = '';
    55        run1.style.display = 'none';
    56        var options = { Race: sk };
    57        running = transport.Run(text(code), PlaygroundOutput(outpre), options);
    58        if (window.notesEnabled) updatePlayStorage('onRun', index, e);
    59      }
    60  
    61      function onClose() {
    62        if (running) running.Kill();
    63        output.style.display = 'none';
    64        run1.style.display = 'inline-block';
    65        if (window.notesEnabled) updatePlayStorage('onClose', index);
    66      }
    67  
    68      if (window.notesEnabled) {
    69        playgroundHandlers.onRun.push(onRun);
    70        playgroundHandlers.onClose.push(onClose);
    71        playgroundHandlers.onKill.push(onKill);
    72      }
    73  
    74      var run1 = document.createElement('button');
    75      run1.textContent = 'Run';
    76      run1.className = 'run';
    77      run1.addEventListener('click', onRun, false);
    78      var run2 = document.createElement('button');
    79      run2.className = 'run';
    80      run2.textContent = 'Run';
    81      run2.addEventListener('click', onRun, false);
    82      var kill = document.createElement('button');
    83      kill.className = 'kill';
    84      kill.textContent = 'Kill';
    85      kill.addEventListener('click', onKill, false);
    86      var close = document.createElement('button');
    87      close.className = 'close';
    88      close.textContent = 'Close';
    89      close.addEventListener('click', onClose, false);
    90  
    91      var button = document.createElement('div');
    92      button.classList.add('buttons');
    93      button.appendChild(run1);
    94      // Hack to simulate insertAfter
    95      code.parentNode.insertBefore(button, code.nextSibling);
    96  
    97      var buttons = document.createElement('div');
    98      buttons.classList.add('buttons');
    99      buttons.appendChild(run2);
   100      buttons.appendChild(kill);
   101      buttons.appendChild(close);
   102  
   103      output.classList.add('output');
   104      output.appendChild(buttons);
   105      output.appendChild(outpre);
   106      output.style.display = 'none';
   107      code.parentNode.insertBefore(output, button.nextSibling);
   108    }
   109  
   110    var play = document.querySelectorAll('div.playground');
   111    for (var i = 0; i < play.length; i++) {
   112      init(play[i], i);
   113    }
   114  }