-package jalview.javascript;
-
-import java.net.URL;
-import java.util.Vector;
-
-import netscape.javascript.JSException;
-import netscape.javascript.JSObject;
-import jalview.bin.JalviewLite;
-
-public class JSFunctionExec implements Runnable
-{
- JalviewLite jvlite;
-
- public JSFunctionExec(JalviewLite applet)
- {
- jvlite = applet;
- }
-
- private static Vector jsExecQueue;
-
- private static Thread executor = null;
-
- public static void stopQueue()
- {
- if (jsExecQueue != null)
- {
- synchronized (jsExecQueue)
- {
- Vector q = jsExecQueue;
- q.removeAllElements();
- jsExecQueue = null;
- executor.notify();
- }
- executor = null;
- }
- }
-
- public void run()
- {
- while (jsExecQueue != null)
- {
- if (jsExecQueue.size() > 0)
- {
- Runnable r = (Runnable) jsExecQueue.elementAt(0);
- jsExecQueue.removeElementAt(0);
- try
- {
- r.run();
- } catch (Exception ex)
- {
- ex.printStackTrace();
- } catch (Error ex)
- {
- ex.printStackTrace();
- }
- }
- else
- {
- try
- {
- synchronized (jsExecQueue)
- {
- jsExecQueue.wait(1000);
- }
- } catch (Exception ex)
- {
- }
- ;
- }
- }
-
- }
-
- /**
- * execute a javascript callback asynchronously
- *
- * @param _listener
- * @param objects
- * @throws Exception
- */
- public void executeJavascriptFunction(final String _listener,
- final Object[] objects) throws Exception
- {
- executeJavascriptFunction(false, _listener, objects);
- }
-
- /**
- * execute a javascript callback synchronously or asynchronously
- *
- * @param async
- * - true to execute asynchronously (do this for gui events)
- * @param _listener
- * - javascript function
- * @param objects
- * - arguments
- * @throws Exception
- * - only if call is synchronous
- */
- public void executeJavascriptFunction(final boolean async,
- final String _listener, Object[] arguments) throws Exception
- {
-
- executeJavascriptFunction(async, _listener, arguments, null);
-
- }
-
- public void executeJavascriptFunction(final boolean async,
- final String _listener, Object[] arguments, final String dbgMsg)
- throws Exception
- {
- final Object[] objects = new Object[arguments != null ? arguments.length
- : 0];
- if (arguments != null)
- {
- System.arraycopy(arguments, 0, objects, 0, arguments.length);
- }
- final Exception[] jsex = new Exception[1];
- Runnable exec = new Runnable()
- {
- public void run()
- {
- try
- {
- JSObject scriptObject = null;
- try
- {
- scriptObject = JSObject.getWindow(jvlite);
- } catch (Exception ex)
- {
- }
- ;
- if (scriptObject != null)
- {
- if (jvlite.debug && dbgMsg != null)
- {
- System.err.println(dbgMsg);
- }
- scriptObject.call(_listener, objects);
- }
- } catch (Exception jex)
- {
- // squash any malformedURLExceptions thrown by windows/safari
- if (!(jex instanceof java.net.MalformedURLException))
- {
- if (jvlite.debug)
- {
- System.err.println(jex);
- }
- if (jex instanceof netscape.javascript.JSException)
- {
- jsex[0] = (netscape.javascript.JSException) jex;
- if (jvlite.debug)
- {
- System.err.println("Falling back to javascript: url call");
- }
- StringBuffer sb = new StringBuffer("javascript:" + _listener
- + "(");
- for (int i = 0; objects != null && i < objects.length; i++)
- {
- if (i > 0)
- {
- sb.append(",");
- }
- sb.append("\"");
- // strip out nulls and complex objects that we can't pass this
- // way.
- if (objects[i] != null
- && !(objects[i].getClass().getName()
- .indexOf("jalview") == 0))
- {
- sb.append(objects[i].toString());
- }
- sb.append("\"");
- }
- sb.append(")");
- if (jvlite.debug)
- {
- System.err.println(sb.toString());
- }
- // alternate
- URL url = null;
- try
- {
- url = new URL(sb.toString());
- jvlite.getAppletContext().showDocument(url);
- jex = null;
- } catch (Exception uex)
- {
- jex = uex;
- }
- }
- if (jex != null)
- {
- if (async)
- {
- jex.printStackTrace();
- }
- else
- {
- jsex[0] = jex;
- }
- }
- ;
- }
-
- }
- }
- };
- if (async)
- {
- if (JSFunctionExec.executor == null)
- {
- JSFunctionExec.jsExecQueue = new Vector();
- JSFunctionExec.executor = new Thread(new JSFunctionExec(jvlite));
- executor.start();
- }
- synchronized (jsExecQueue)
- {
- jsExecQueue.addElement(exec);
- jsExecQueue.notify();
- }
- }
- else
- {
- exec.run();
- if (jsex[0] != null)
- {
- throw (jsex[0]);
- }
- }
- }
-
-}
+/*******************************************************************************
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.7)
+ * Copyright (C) 2011 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ *******************************************************************************/
+package jalview.javascript;\r
+\r
+import java.net.URL;\r
+import java.util.Vector;\r
+\r
+import netscape.javascript.JSException;\r
+import netscape.javascript.JSObject;\r
+import jalview.bin.JalviewLite;\r
+\r
+public class JSFunctionExec implements Runnable\r
+{\r
+ public JalviewLite jvlite;\r
+\r
+ public JSFunctionExec(JalviewLite applet)\r
+ {\r
+ jvlite = applet;\r
+ \r
+ jsExecQueue = jvlite.getJsExecQueue();\r
+ jvlite.setExecutor(this);\r
+ }\r
+ public void finalize() {\r
+ jvlite=null;\r
+ executor=null;\r
+ if (jsExecQueue!=null)\r
+ {\r
+ jsExecQueue.clear();\r
+ }\r
+ jsExecQueue=null;\r
+ }\r
+ private Vector jsExecQueue;\r
+\r
+ private Thread executor = null;\r
+\r
+ public void stopQueue()\r
+ {\r
+ if (jsExecQueue != null)\r
+ {\r
+ Vector<JSFunctionExec> q=null;\r
+ synchronized (jsExecQueue)\r
+ {\r
+ q = jsExecQueue;\r
+ jsExecQueue = null;\r
+ }\r
+ if (q!=null ) {\r
+ for (JSFunctionExec jx : q)\r
+ {\r
+ jx.jvlite=null;\r
+ \r
+ }\r
+ q.removeAllElements();\r
+ synchronized (q)\r
+ {\r
+ q.notifyAll();\r
+ }\r
+ }\r
+ }\r
+ jvlite=null;\r
+ executor = null;\r
+ }\r
+\r
+ public void run()\r
+ {\r
+ while (jsExecQueue != null)\r
+ {\r
+ if (jsExecQueue.size() > 0)\r
+ {\r
+ Runnable r = (Runnable) jsExecQueue.elementAt(0);\r
+ jsExecQueue.removeElementAt(0);\r
+ try\r
+ {\r
+ r.run();\r
+ } catch (Exception ex)\r
+ {\r
+ ex.printStackTrace();\r
+ } catch (Error ex)\r
+ {\r
+ ex.printStackTrace();\r
+ }\r
+ }\r
+ else\r
+ {\r
+ try\r
+ {\r
+ synchronized (jsExecQueue)\r
+ {\r
+ jsExecQueue.wait(1000);\r
+ }\r
+ } catch (Exception ex)\r
+ {\r
+ }\r
+ ;\r
+ }\r
+ }\r
+\r
+ }\r
+\r
+ /**\r
+ * execute a javascript callback synchronously\r
+ * \r
+ * @param _listener\r
+ * @param objects\r
+ * @throws Exception\r
+ */\r
+ public void executeJavascriptFunction(final String _listener,\r
+ final Object[] objects) throws Exception\r
+ {\r
+ executeJavascriptFunction(false, _listener, objects);\r
+ }\r
+\r
+ /**\r
+ * execute a javascript callback synchronously or asynchronously\r
+ * \r
+ * @param async\r
+ * - true to execute asynchronously (do this for gui events)\r
+ * @param _listener\r
+ * - javascript function\r
+ * @param objects\r
+ * - arguments\r
+ * @throws Exception\r
+ * - only if call is synchronous\r
+ */\r
+ public void executeJavascriptFunction(final boolean async,\r
+ final String _listener, Object[] arguments) throws Exception\r
+ {\r
+\r
+ executeJavascriptFunction(async, _listener, arguments, null);\r
+\r
+ }\r
+\r
+ public void executeJavascriptFunction(final boolean async,\r
+ final String _listener, Object[] arguments, final String dbgMsg)\r
+ throws Exception\r
+ {\r
+ final Object[] objects = new Object[arguments != null ? arguments.length\r
+ : 0];\r
+ if (arguments != null)\r
+ {\r
+ System.arraycopy(arguments, 0, objects, 0, arguments.length);\r
+ }\r
+ final Exception[] jsex = new Exception[1];\r
+ Runnable exec = new Runnable()\r
+ {\r
+ public void run()\r
+ {\r
+ try\r
+ {\r
+ JSObject scriptObject = null;\r
+ try\r
+ {\r
+ scriptObject = JSObject.getWindow(jvlite);\r
+ } catch (Exception ex)\r
+ {\r
+ }\r
+ ;\r
+ if (scriptObject != null)\r
+ {\r
+ if (jvlite.debug && dbgMsg != null)\r
+ {\r
+ System.err.println(dbgMsg);\r
+ }\r
+ scriptObject.call(_listener, objects);\r
+ }\r
+ } catch (Exception jex)\r
+ {\r
+ // squash any malformedURLExceptions thrown by windows/safari\r
+ if (!(jex instanceof java.net.MalformedURLException))\r
+ {\r
+ if (jvlite.debug)\r
+ {\r
+ System.err.println(jex);\r
+ }\r
+ if (jex instanceof netscape.javascript.JSException && jvlite.jsfallbackEnabled)\r
+ {\r
+ jsex[0] = (netscape.javascript.JSException) jex;\r
+ if (jvlite.debug)\r
+ {\r
+ System.err.println("Falling back to javascript: url call");\r
+ }\r
+ StringBuffer sb = new StringBuffer("javascript:" + _listener\r
+ + "(");\r
+ for (int i = 0; objects != null && i < objects.length; i++)\r
+ {\r
+ if (i > 0)\r
+ {\r
+ sb.append(",");\r
+ }\r
+ sb.append("\"");\r
+ // strip out nulls and complex objects that we can't pass this\r
+ // way.\r
+ if (objects[i] != null\r
+ && !(objects[i].getClass().getName()\r
+ .indexOf("jalview") == 0))\r
+ {\r
+ sb.append(objects[i].toString());\r
+ }\r
+ sb.append("\"");\r
+ }\r
+ sb.append(")");\r
+ if (jvlite.debug)\r
+ {\r
+ System.err.println(sb.toString());\r
+ }\r
+ // alternate\r
+ URL url = null;\r
+ try\r
+ {\r
+ url = new URL(sb.toString());\r
+ jvlite.getAppletContext().showDocument(url);\r
+ jex = null;\r
+ } catch (Exception uex)\r
+ {\r
+ jex = uex;\r
+ }\r
+ }\r
+ if (jex != null)\r
+ {\r
+ if (async)\r
+ {\r
+ jex.printStackTrace();\r
+ }\r
+ else\r
+ {\r
+ jsex[0] = jex;\r
+ }\r
+ }\r
+ ;\r
+ }\r
+\r
+ }\r
+ }\r
+ };\r
+ if (async)\r
+ {\r
+ if (executor == null)\r
+ {\r
+ executor = new Thread(new JSFunctionExec(jvlite));\r
+ executor.start();\r
+ }\r
+ synchronized (jsExecQueue)\r
+ {\r
+ jsExecQueue.addElement(exec);\r
+ jsExecQueue.notify();\r
+ }\r
+ }\r
+ else\r
+ {\r
+ // wat for executor to notify us if it's running.\r
+ exec.run();\r
+ if (jsex[0] != null)\r
+ {\r
+ throw (jsex[0]);\r
+ }\r
+ }\r
+ }\r
+\r
+}\r
git://source.jalview.org / jalview.git / blobdiff