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Diffstat (limited to 'scripting/java/com/sun/star/script/framework/provider/javascript/ScriptEditorForJavaScript.java')
| -rw-r--r-- | scripting/java/com/sun/star/script/framework/provider/javascript/ScriptEditorForJavaScript.java | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/scripting/java/com/sun/star/script/framework/provider/javascript/ScriptEditorForJavaScript.java b/scripting/java/com/sun/star/script/framework/provider/javascript/ScriptEditorForJavaScript.java new file mode 100644 index 000000000..1f0e8fd72 --- /dev/null +++ b/scripting/java/com/sun/star/script/framework/provider/javascript/ScriptEditorForJavaScript.java @@ -0,0 +1,319 @@ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +package com.sun.star.script.framework.provider.javascript; + +import com.sun.star.script.framework.container.ScriptMetaData; +import com.sun.star.script.framework.log.LogUtils; +import com.sun.star.script.framework.provider.ScriptEditorBase; +import com.sun.star.script.framework.provider.SwingInvocation; +import com.sun.star.script.provider.XScriptContext; + +import java.awt.event.WindowAdapter; +import java.awt.event.WindowEvent; + +import java.io.IOException; +import java.io.InputStream; + +import java.net.URL; +import java.util.HashMap; +import java.util.Map; + +import org.mozilla.javascript.Context; +import org.mozilla.javascript.ImporterTopLevel; +import org.mozilla.javascript.Scriptable; +import org.mozilla.javascript.tools.debugger.Main; +import org.mozilla.javascript.tools.debugger.ScopeProvider; + +public class ScriptEditorForJavaScript extends ScriptEditorBase { + + // global ScriptEditorForJavaScript instance + private static ScriptEditorForJavaScript theScriptEditorForJavaScript; + + // template for JavaScript scripts + private static String JSTEMPLATE; + + private static Main rhinoWindow; + private URL scriptURL; + // global list of ScriptEditors, key is [external form of URL] of file being edited + private static Map<String, ScriptEditorForJavaScript> BEING_EDITED = new + HashMap<String, ScriptEditorForJavaScript>(); + + static { + JSTEMPLATE = "// JavaScript script"; + try { + URL url = ScriptEditorForJavaScript.class.getResource("template.js"); + if (url != null) { + InputStream in = url.openStream(); + StringBuilder buf = new StringBuilder(); + byte[] b = new byte[1024]; + int len; + + while ((len = in.read(b)) != -1) { + buf.append(new String(b, 0, len)); + } + + in.close(); + + JSTEMPLATE = buf.toString(); + } + } catch (IOException ioe) { + } catch (Exception e) { + } + } + + /** + * Returns the global ScriptEditorForJavaScript instance. + */ + + public static synchronized ScriptEditorForJavaScript getEditor() { + if (theScriptEditorForJavaScript == null) { + theScriptEditorForJavaScript = new ScriptEditorForJavaScript(); + } + + return theScriptEditorForJavaScript; + } + + /** + * Get the ScriptEditorForJavaScript instance for this URL + * + * @param url The URL of the script source file + * + * @return The ScriptEditorForJavaScript associated with + * the given URL if one exists, otherwise null. + */ + public static ScriptEditorForJavaScript getEditor(URL url) { + synchronized (BEING_EDITED) { + return BEING_EDITED.get(url.toExternalForm()); + } + } + + /** + * Returns whether or not the script source being edited in this + * ScriptEditorForJavaScript has been modified + */ + public boolean isModified() { + return rhinoWindow.isModified(scriptURL); + } + + /** + * Returns the text being displayed in this ScriptEditorForJavaScript + * + * @return The text displayed in this ScriptEditorForJavaScript + */ + public String getText() { + return rhinoWindow.getText(scriptURL); + } + + /** + * Returns the Rhino Debugger url of this ScriptEditorForJavaScript + * + * @return The url of this ScriptEditorForJavaScript + */ + public String getURL() { + return scriptURL.toString(); + } + + /** + * Returns the template text for JavaScript scripts + * + * @return The template text for JavaScript scripts + */ + public String getTemplate() { + return JSTEMPLATE; + } + + /** + * Returns the default extension for JavaScript scripts + * + * @return The default extension for JavaScript scripts + */ + public String getExtension() { + return "js"; + } + + /** + * Opens an editor window for the specified ScriptMetaData. + * If an editor window is already open for that data it will be + * moved to the front. + * + * @param context The context in which to execute the script + * @param entry The metadata describing the script + */ + public void edit(final XScriptContext context, ScriptMetaData entry) { + try { + String sUrl = entry.getParcelLocation(); + + if (!sUrl.endsWith("/")) { + sUrl += "/"; + } + + sUrl += entry.getLanguageName(); + final URL url = entry.getSourceURL(); + SwingInvocation.invoke( + new Runnable() { + public void run() { + synchronized (BEING_EDITED) { + ScriptEditorForJavaScript editor = BEING_EDITED.get(url.toExternalForm()); + + if (editor == null) { + editor = new ScriptEditorForJavaScript(context, url); + BEING_EDITED.put(url.toExternalForm(), editor); + } + } + + assert rhinoWindow != null; + rhinoWindow.showScriptWindow(url); + rhinoWindow.toFront(); + } + }); + } catch (IOException e) { + LogUtils.DEBUG("Caught exception: " + e); + LogUtils.DEBUG(LogUtils.getTrace(e)); + } + } + + // Ensures that new instances of this class can only be created using + // the factory methods + private ScriptEditorForJavaScript() { + } + + private ScriptEditorForJavaScript(XScriptContext context, URL url) { + setContext(context); + // Need to check that before showing the window. Checking in execute() has no effect. + if (!isMacroExecutionEnabled()) { + showErrorMessage("Macro Execution has been disabled."); + return ; + } + initUI(); + Scriptable scope = getScope(context); + rhinoWindow.openFile(url, scope, new CloseHandler(url)); + this.scriptURL = url; + } + + /** + * Executes the script edited by the editor + * + */ + + public Object execute() throws Exception { + rhinoWindow.toFront(); + + return rhinoWindow.runScriptWindow(scriptURL); + } + + /** + * Indicates the line where error occurred + * + */ + public void indicateErrorLine(int lineNum) { + rhinoWindow.toFront(); + rhinoWindow.highlighLineInScriptWindow(scriptURL, lineNum); + } + // This code is based on the main method of the Rhino Debugger Main class + // We pass in the XScriptContext in the global scope for script execution + private void initUI() { + try { + synchronized (ScriptEditorForJavaScript.class) { + if (rhinoWindow != null) { + return; + } + + final Main sdb = new Main("Rhino JavaScript Debugger"); + sdb.pack(); + sdb.setSize(640, 640); + sdb.setVisible(true); + sdb.setExitAction(new Runnable() { + public void run() { + sdb.clearAllBreakpoints(); + sdb.dispose(); + shutdown(); + } + }); + Context.addContextListener(sdb); + sdb.setScopeProvider(new ScopeProvider() { + @Override + public Scriptable getScope() { + return org.mozilla.javascript.tools.shell.Main.getScope(); + } + }); + sdb.addWindowListener(new WindowAdapter() { + @Override + public void windowClosing(WindowEvent e) { + shutdown(); + } + }); + rhinoWindow = sdb; + } + } catch (Exception exc) { + LogUtils.DEBUG(LogUtils.getTrace(exc)); + } + } + + private void shutdown() { + // dereference Rhino Debugger window + rhinoWindow = null; + this.scriptURL = null; + + // remove all scripts from BEING_EDITED + synchronized (BEING_EDITED) { + java.util.Iterator<String> iter = BEING_EDITED.keySet().iterator(); + java.util.ArrayList<String> keysToRemove = new java.util.ArrayList<String>(); + + while (iter.hasNext()) { + String key = iter.next(); + keysToRemove.add(key); + } + + for (int i = 0; i < keysToRemove.size(); i++) { + BEING_EDITED.remove(keysToRemove.get(i)); + } + + keysToRemove = null; + } + + } + private Scriptable getScope(XScriptContext xsctxt) { + Context ctxt = Context.enter(); + ImporterTopLevel scope = new ImporterTopLevel(ctxt); + + Scriptable jsCtxt = Context.toObject(xsctxt, scope); + scope.put("XSCRIPTCONTEXT", scope, jsCtxt); + + Scriptable jsArgs = Context.toObject(new Object[0], scope); + scope.put("ARGUMENTS", scope, jsArgs); + + Context.exit(); + return scope; + } + + private static class CloseHandler implements Runnable { + + private final URL url; + + private CloseHandler(URL url) { + this.url = url; + } + + public void run() { + synchronized (BEING_EDITED) { + BEING_EDITED.remove(this.url.toExternalForm()); + } + } + } +} |