org.jpedal.examples.viewer.Commands Maven / Gradle / Ivy

* some commands return a status Object otherwise null * * @param ID is of type Int * @param args Program arguments passed into the Viewer. * @return the status object */ public Object executeCommand(final int ID, Object[] args) { //teat null and Object[]{null} as both null if (args != null && args.length == 1 && args[0] == null) { args = null; } Object status = null; currentGUI.setExecutingCommand(true); final Map jpedalActionHandlers = (Map) decode_pdf.getExternalHandler(Options.JPedalActionHandlers); if (jpedalActionHandlers != null) { final JPedalActionHandler jpedalAction = (JPedalActionHandler) jpedalActionHandlers.get(ID); if (jpedalAction != null) { jpedalAction.actionPerformed(currentGUI, this); return null; } } if (!SharedViewer.isFX()) { status = executeSwingCommand(ID, args, status); } //Mark as executed is not running in thread if (!currentGUI.isCommandInThread()) { currentGUI.setExecutingCommand(false); } return status; } public void handleTransferedFile(final String file) throws PdfException { //Before anything handle any unsaved forms SaveFile.handleUnsaveForms(currentGUI, commonValues); while (Values.getOpeningTransferedFile() || Values.isProcessing()) { try { Thread.sleep(250); } catch (final InterruptedException e) { e.printStackTrace(); } } Values.setOpeningTransferedFile(true); final boolean isURL = file.startsWith("http:") || file.startsWith("file:"); try { if (!isURL) { commonValues.setFileIsURL(false); commonValues.setFileSize(new File(file).length() >> 10); } else { commonValues.setFileIsURL(true); } commonValues.setSelectedFile(file); currentGUI.setViewerTitle(null); } catch (final Exception e) { LogWriter.writeLog("Exception " + e + " getting paths"); } // check file exists final File testFile = new File(commonValues.getSelectedFile()); if (!isURL && !testFile.exists()) { currentGUI.showMessageDialog(Messages.getMessage("PdfViewerFile.text") + commonValues.getSelectedFile() + Messages.getMessage("PdfViewerNotExist")); } else if (commonValues.getSelectedFile() != null && !Values.isProcessing()) { openTransferedFile(); if (commonValues.isPDF()) { Values.setOpeningTransferedFile(false); } } } protected void openTransferedFile() throws PdfException { throw new RuntimeException("openTransferedFile in Commands should never be called"); } public void recentDocumentsOption() { currentGUI.setRecentDocument(); final String[] recentDocs = properties.getRecentDocuments(); if (recentDocs == null) { return; } for (int i = 0; i < PropertiesFile.getNoRecentDocumentsToDisplay(); i++) { if (recentDocs[i] == null) { recentDocs[i] = ""; } try { final String fileNameToAdd = recentDocs[i]; currentGUI.getRecentDocument().createMenuItems(fileNameToAdd, i, currentGUI, commonValues); } catch (final Exception ee) { ee.printStackTrace(); } } } public void setPdfDecoder(final PdfDecoderInt decode_pdf) { this.decode_pdf = decode_pdf; } /** * Returns the searchList of the last search preformed. * If currently searching this method will return the results for last completed search * * @return SearchList of all results, all data but the actual highlgiht areas */ public GUISearchList getSearchList() { return searchFrame.getResults(); } public MouseMode getMouseMode() { return mouseMode; } public ViewStack getViewStack() { return viewStack; } /** * examine first few bytes to see if linearized and return true linearized file * * @param pdfUrl is of type String * @return the isLinear */ public static final boolean isPDFLinearized(final String pdfUrl) { if (pdfUrl.startsWith("jar")) { return false; } boolean isLinear = false; //read first few bytes final URL url; final InputStream is; try { url = new URL(pdfUrl); is = url.openStream(); //final String filename = url.getPath().substring(url.getPath().lastIndexOf('/')+1); // Download buffer final byte[] buffer = new byte[128]; is.read(buffer); is.close(); //test if linearized //scan for Linearized in text final int len = buffer.length; for (int i = 0; i < len; i++) { if (buffer[i] == '/' && buffer[i + 1] == 'L' && buffer[i + 2] == 'i' && buffer[i + 3] == 'n' && buffer[i + 4] == 'e' && buffer[i + 5] == 'a' && buffer[i + 6] == 'r') { isLinear = true; i = len; } } } catch (final IOException e) { LogWriter.writeLog("[PDF] Exception " + e + " scanning URL " + pdfUrl); } return isLinear; } Object executeSwingCommand(final int ID, final Object[] args, final Object status) { throw new UnsupportedOperationException("executeSwingCommand should not be called"); } }