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amber.js 5.8 KB

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  1. /* Amber package loading
  2. usage example:
  3. amber.load({
  4. files: ['MyCategory1.js', 'MyCategory2.js'],
  5. ready: function() {smalltalk.Browser._open()}
  6. })
  7. */
  8. amber = (function() {
  9. var that = {};
  10. var scripts = document.getElementsByTagName("script");
  11. var src = scripts[ scripts.length - 1 ].src;
  12. var home = src.split("/").slice(0, -2).join("/") + "/";
  13. var debug;
  14. var deploy;
  15. var spec;
  16. var jsToLoad = [];
  17. var loadJS;
  18. var nocache = '';
  19. that.toggleIDE = function() {
  20. if ($('#jtalk').length == 0) {
  21. smalltalk.Browser._open();
  22. } else if ($('#jtalk').is(':visible')) {
  23. smalltalk.TabManager._current()._close();
  24. } else {
  25. smalltalk.TabManager._current()._open();
  26. }
  27. return false;
  28. }
  29. that.load = function(obj) {
  30. spec = obj || {};
  31. // In deployment mode, only the compressed version of Kernel
  32. // and Canvas are loaded
  33. deploy = spec.deploy || false;
  34. debug = spec.debug || false;
  35. // When debug is turned on, logs are written to the console,
  36. // and the user will be prompted before they leave the page.
  37. if (debug) {
  38. window.onbeforeunload = function(){ return 'You will loose all code that you have not committed'; }
  39. }
  40. // Allow loading default Amber files from a different location
  41. // e.g. http://amber-lang.net/amber/
  42. if (spec.home) home = spec.home;
  43. // Specify a version string to avoid wrong browser caching
  44. if (spec.version) {
  45. nocache = '?' + spec.version;
  46. }
  47. loadDependencies();
  48. addJSToLoad('compat.js');
  49. addJSToLoad('boot.js');
  50. if (deploy) {
  51. loadPackages([
  52. 'Kernel-Objects.deploy',
  53. 'Kernel-Classes.deploy',
  54. 'Kernel-Methods.deploy',
  55. 'Kernel-Collections.deploy',
  56. 'Kernel-Exceptions.deploy',
  57. 'Kernel-Transcript.deploy',
  58. 'Kernel-Announcements.deploy',
  59. 'Canvas.deploy'
  60. ]);
  61. } else {
  62. loadIDEDependencies();
  63. loadCSS('amber.css');
  64. loadPackages([
  65. 'Kernel-Objects',
  66. 'Kernel-Classes',
  67. 'Kernel-Methods',
  68. 'Kernel-Collections',
  69. 'Kernel-Exceptions',
  70. 'Kernel-Transcript',
  71. 'Kernel-Announcements',
  72. 'Canvas',
  73. 'Compiler',
  74. 'parser',
  75. 'IDE',
  76. 'SUnit',
  77. 'Examples',
  78. 'Benchfib',
  79. 'Kernel-Tests'
  80. ]);
  81. }
  82. var additionalFiles = spec.packages || spec.files;
  83. if (additionalFiles) {
  84. loadPackages(additionalFiles, spec.prefix, spec.packageHome);
  85. }
  86. // Be sure to setup & initialize smalltalk classes
  87. addJSToLoad('init.js');
  88. initializeSmalltalk();
  89. };
  90. function loadPackages(names, prefix, urlHome){
  91. var name, url;
  92. var prefix = prefix || 'js';
  93. var urlHome = urlHome || home;
  94. for (var i=0; i < names.length; i++) {
  95. name = names[i].split(/\.js$/)[0];
  96. addJSToLoad(name + '.js', prefix, urlHome);
  97. }
  98. };
  99. function addJSToLoad(name, prefix, urlHome) {
  100. var urlHome = urlHome || home;
  101. jsToLoad.push(buildJSURL(name, prefix, urlHome));
  102. };
  103. function buildJSURL(name, prefix, urlHome) {
  104. var prefix = prefix || 'js';
  105. var name = name;
  106. var urlHome = urlHome || home;
  107. if (!deploy) {
  108. name = name + nocache;
  109. }
  110. return urlHome + prefix + '/' + name;
  111. };
  112. function loadCSS(name, prefix) {
  113. var prefix = prefix || 'css';
  114. var name = name;
  115. if (!deploy) {
  116. name = name + nocache;
  117. }
  118. var url = home + prefix + '/' + name;
  119. var link = document.createElement("link");
  120. link.setAttribute("rel", "stylesheet");
  121. link.setAttribute("type", "text/css");
  122. link.setAttribute("href", url);
  123. document.getElementsByTagName("head")[0].appendChild(link);
  124. };
  125. function loadDependencies() {
  126. if (typeof jQuery == 'undefined') {
  127. writeScriptTag(buildJSURL('lib/jQuery/jquery-1.6.4.min.js'));
  128. }
  129. if ((typeof jQuery == 'undefined') || (typeof jQuery.ui == 'undefined')) {
  130. writeScriptTag(buildJSURL('lib/jQuery/jquery-ui-1.8.16.custom.min.js'));
  131. }
  132. };
  133. function loadIDEDependencies() {
  134. addJSToLoad('lib/jQuery/jquery.textarea.js');
  135. addJSToLoad('lib/CodeMirror/codemirror.js');
  136. addJSToLoad('lib/CodeMirror/smalltalk.js');
  137. loadCSS('lib/CodeMirror/codemirror.css', 'js');
  138. loadCSS('lib/CodeMirror/amber.css', 'js');
  139. };
  140. // This will be called after JS files have been loaded
  141. function initializeSmalltalk() {
  142. window.smalltalkReady = function() {
  143. if (deploy) {
  144. smalltalk.setDeploymentMode();
  145. }
  146. if (spec.ready) {
  147. spec.ready();
  148. }
  149. }
  150. loadAllJS();
  151. };
  152. /*
  153. * When loaded using AJAX, scripts order not guaranteed.
  154. * Load JS in the order they have been added using addJSToLoad().
  155. * If loaded, will use jQuery's getScript instead of adding a script element
  156. */
  157. function loadAllJS() {
  158. loadJS = loadJSViaScriptTag;
  159. if (typeof jQuery != 'undefined') {
  160. loadJS = loadJSViaJQuery;
  161. }
  162. loadNextJS();
  163. };
  164. function loadNextJS() {
  165. loadJS(jsToLoad[0], function(){
  166. jsToLoad.shift();
  167. if (jsToLoad.length > 0) {
  168. loadNextJS();
  169. }
  170. });
  171. };
  172. function loadJSViaScriptTag(url, callback) {
  173. writeScriptTag(url);
  174. callback();
  175. };
  176. function loadJSViaJQuery(url, callback) {
  177. $.ajax({
  178. dataType: "script",
  179. url: jsToLoad[0],
  180. cache: deploy,
  181. success: callback
  182. });
  183. };
  184. function writeScriptTag(src) {
  185. var scriptString = '<script src="' + src + '" type="text/javascript"></script>';
  186. document.write(scriptString);
  187. };
  188. function populateLocalPackages(){
  189. var localStorageRE = /^smalltalk\.packages\.(.*)$/;
  190. localPackages = {};
  191. var match, key;
  192. for(var i=0; i < localStorage.length; i++) {
  193. key = localStorage.key(i);
  194. if (match = key.match(localStorageRE)) {
  195. localPackages[match[1]] = localStorage[key];
  196. }
  197. }
  198. return localPackages;
  199. };
  200. function clearLocalPackages() {
  201. for (var name in localPackages) {
  202. log('Removing ' + name + ' from local storage');
  203. localStorage.removeItem('smalltalk.packages.' + name);
  204. }
  205. };
  206. function log(string) {
  207. if (debug) {
  208. console.log(string);
  209. }
  210. }
  211. return that;
  212. })();
  213. window.loadAmber = amber.load;
  214. window.toggleAmberIDE = amber.toggleIDE;