contrib/online_ide/www/js/pnacl_js.js

   1 // This file is part of pnacl_nit ( http://www.pnacl_nitlanguage.org )
   2 //
   3 // Copyright 2014 Johan Kayser <kayser.johan@gmail.com>
   4 //
   5 // Licensed under the Apache License, Version 2.0 (the "License");
   6 // you may not use this file except in compliance with the License.
   7 // You may obtain a copy of the License at
   8 //
   9 //     http://www.apache.org/licenses/LICENSE-2.0
  10 //
  11 // Unless required by applicable law or agreed to in writing, software
  12 // distributed under the License is distributed on an "AS IS" BASIS,
  13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 // See the License for the specific language governing permissions and
  15 // limitations under the License.
  16
  17 pnacl_nitModule = null;  // Global application object.
  18 var github_acces_token = '9d9412ce7f8223348287aac676b2835baa8f0cfc'; // Github API token.
  19 var lib_files = []; // Stores the Nit lib files in JS.
  20 var lib_files_number = 0;
  21 var sha_filename_map = {}; // Map that stores files with their 'sha' as key and 'name' as value
  22 var lib_files_loaded = false;
  23 var terminal = null; //terminal object.
  24
  25 // Indicate load success.
  26 function moduleDidLoad() {
  27         pnacl_nitModule = document.getElementById('pnacl_nit');
  28         if (pnacl_nitModule != null) {
  29                 // When the module is loaded, we load the lib and init the terminal.
  30                 console.log('pnacl_nitModule loaded.');
  31                 load_nit_lib();
  32                 init_terminal();
  33         }
  34 }
  35
  36 // The 'message' event handler. This handler is fired when the NaCl module
  37 // posts a message to the browser by calling PPB_Messaging.PostMessage()
  38 // (in C) or pp::Instance.PostMessage() (in C++).  This implementation
  39 // displays the result in the JS console, puts the result in the '#rez' input and make it visible.
  40 function handleMessage(message_event) {
  41         if (message_event.data.hasOwnProperty('exit')){
  42                 // If the code exited, shows the error code and reloads Nit lib after the launch of a new thread.
  43                 console.log('Nit code exited with value: ' + message_event.data.exit + '.');
  44                 console.log(message_event.data.exit_thread);
  45                 load_nit_lib();
  46         }
  47         else if (!message_event.data.hasOwnProperty('operation'))
  48         {
  49                 if(message_event.data == "\n") {
  50                         // Do nothing.
  51                 }
  52                 else {
  53                         terminal.echo(message_event.data);
  54                 }
  55         }
  56         else if (message_event.data.operation == 'load_response'){
  57                 // We use this to count how many files were loaded for the lib in PNaCl,
  58                 // if the number matches the number of files loaded from Github,
  59                 // we know we have all the files.
  60                 if (message_event.data.files_number == lib_files_number) {
  61                         console.log('Nit library loaded (' + message_event.data.files_number + ' files), ready to go.');
  62                         lib_files_loaded = true;
  63                 }
  64         }
  65 }
  66
  67 // Called if the application calls exit(n), abort(), or crashes.
  68 function handleCrash() {
  69         // We remove the modules and add a new one.
  70         $( "#pnacl_nit" ).remove();
  71         $( "#listener" ).append("<embed id='pnacl_nit' width=0 height=0 src='/pnacl/pnacl_nit.nmf' type='application/x-pnacl' />");
  72 }