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amber.js 5.7 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 ($('#amber').length == 0) {
  21. smalltalk.Browser._open();
  22. } else if ($('#amber').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. 'Nemo'
  81. ]);
  82. }
  83. var additionalFiles = spec.packages || spec.files;
  84. if (additionalFiles) {
  85. loadPackages(additionalFiles, spec.prefix, spec.packageHome);
  86. }
  87. // Be sure to setup & initialize smalltalk classes
  88. addJSToLoad('init.js');
  89. initializeSmalltalk();
  90. };
  91. function loadPackages(names, prefix, urlHome){
  92. var name, url;
  93. var prefix = prefix || 'js';
  94. var urlHome = urlHome || home;
  95. for (var i=0; i < names.length; i++) {
  96. name = names[i].split(/\.js$/)[0];
  97. addJSToLoad(name + '.js', prefix, urlHome);
  98. }
  99. };
  100. function addJSToLoad(name, prefix, urlHome) {
  101. var urlHome = urlHome || home;
  102. jsToLoad.push(buildJSURL(name, prefix, urlHome));
  103. };
  104. function buildJSURL(name, prefix, urlHome) {
  105. var prefix = prefix || 'js';
  106. var name = name;
  107. var urlHome = urlHome || home;
  108. if (!deploy) {
  109. name = name + nocache;
  110. }
  111. return urlHome + prefix + '/' + name;
  112. };
  113. function loadCSS(name, prefix) {
  114. var prefix = prefix || 'css';
  115. var name = name;
  116. if (!deploy) {
  117. name = name + nocache;
  118. }
  119. var url = home + prefix + '/' + name;
  120. var link = document.createElement("link");
  121. link.setAttribute("rel", "stylesheet");
  122. link.setAttribute("type", "text/css");
  123. link.setAttribute("href", url);
  124. document.getElementsByTagName("head")[0].appendChild(link);
  125. };
  126. function loadDependencies() {
  127. if (typeof jQuery == 'undefined') {
  128. writeScriptTag(buildJSURL('lib/jQuery/jquery-1.6.4.min.js'));
  129. }
  130. if ((typeof jQuery == 'undefined') || (typeof jQuery.ui == 'undefined')) {
  131. writeScriptTag(buildJSURL('lib/jQuery/jquery-ui-1.8.16.custom.min.js'));
  132. }
  133. };
  134. function loadIDEDependencies() {
  135. addJSToLoad('lib/jQuery/jquery.textarea.js');
  136. addJSToLoad('lib/CodeMirror/codemirror.js');
  137. addJSToLoad('lib/CodeMirror/smalltalk.js');
  138. loadCSS('lib/CodeMirror/codemirror.css', 'js');
  139. loadCSS('lib/CodeMirror/amber.css', 'js');
  140. };
  141. // This will be called after JS files have been loaded
  142. function initializeSmalltalk() {
  143. window.smalltalkReady = function() {
  144. if (spec.ready) {
  145. spec.ready();
  146. }
  147. }
  148. loadAllJS();
  149. };
  150. /*
  151. * When loaded using AJAX, scripts order not guaranteed.
  152. * Load JS in the order they have been added using addJSToLoad().
  153. * If loaded, will use jQuery's getScript instead of adding a script element
  154. */
  155. function loadAllJS() {
  156. loadJS = loadJSViaScriptTag;
  157. if (typeof jQuery != 'undefined') {
  158. loadJS = loadJSViaJQuery;
  159. }
  160. loadNextJS();
  161. };
  162. function loadNextJS() {
  163. loadJS(jsToLoad[0], function(){
  164. jsToLoad.shift();
  165. if (jsToLoad.length > 0) {
  166. loadNextJS();
  167. }
  168. });
  169. };
  170. function loadJSViaScriptTag(url, callback) {
  171. writeScriptTag(url);
  172. callback();
  173. };
  174. function loadJSViaJQuery(url, callback) {
  175. $.ajax({
  176. dataType: "script",
  177. url: jsToLoad[0],
  178. cache: deploy,
  179. success: callback
  180. });
  181. };
  182. function writeScriptTag(src) {
  183. var scriptString = '<script src="' + src + '" type="text/javascript"></script>';
  184. document.write(scriptString);
  185. };
  186. function populateLocalPackages(){
  187. var localStorageRE = /^smalltalk\.packages\.(.*)$/;
  188. localPackages = {};
  189. var match, key;
  190. for(var i=0; i < localStorage.length; i++) {
  191. key = localStorage.key(i);
  192. if (match = key.match(localStorageRE)) {
  193. localPackages[match[1]] = localStorage[key];
  194. }
  195. }
  196. return localPackages;
  197. };
  198. function clearLocalPackages() {
  199. for (var name in localPackages) {
  200. log('Removing ' + name + ' from local storage');
  201. localStorage.removeItem('smalltalk.packages.' + name);
  202. }
  203. };
  204. function log(string) {
  205. if (debug) {
  206. console.log(string);
  207. }
  208. }
  209. return that;
  210. })();
  211. window.loadAmber = amber.load;
  212. window.toggleAmberIDE = amber.toggleIDE;