terminalmenuhandlerfull.java

一个非常好的ssh客户端实现

	if(caseSens) {
	    if(chars[idx] != firstChar)
		return false;
	    cmpStr = new String(chars, idx, len);
	    if(cmpStr.equals(findStr))
		return true;
	} else {
	    if(Character.toLowerCase(chars[idx]) != firstChar)
		return false;
	    cmpStr = new String(chars, idx, len);
	    if(cmpStr.equalsIgnoreCase(findStr))
		return true;
	}
	return false;
    }

    int curFindRow = 0;
    int curFindCol = 0;
    int findLen    = 0;

    void doFind() {
	String  findStr = findText.getText();
	int     len = findStr.length();
	boolean caseSens = caseCheck.getState();
	boolean revFind  = dirCheck.getState();
	int     lastRow  = term.saveVisTop + term.curRow;
	int     startCol;
	boolean found    = false;
	int     i, j = 0;
	char    firstChar = (caseSens ? findStr.charAt(0) : Character.toLowerCase(findStr.charAt(0)));

	if(findLen > 0) {
	    term.clearSelection(curFindRow, curFindCol, curFindRow, curFindCol + findLen - 1);
	}
    
	if(revFind) {
	    if(findLen > 0) {
		startCol = curFindCol - 1;
	    } else {
		curFindRow = lastRow;
		startCol   = term.cols - len;
	    }
	foundItRev:
	    for(i = curFindRow; i >= 0; i--) {
		for(j = startCol; j >= 0; j--) {
		    if(term.screen[i][j] == 0)
			continue;
		    if(doMatch(findStr, firstChar, term.screen[i], j, caseSens, len))
			break foundItRev;
		}
		startCol = term.cols - len;
	    }
	    if(i >= 0)
		found = true;
	} else {
	    startCol = curFindCol + findLen;
	foundIt:
	    for(i = curFindRow; i < lastRow; i++) {
		for(j = startCol; j < term.cols - len; j++) {
		    if(term.screen[i][j] == 0)
			continue;
		    if(doMatch(findStr, firstChar, term.screen[i], j, caseSens, len))
			break foundIt;
		}
		startCol = 0;
	    }
	    if(i < lastRow)
		found = true;
	}
	if(found) {
	    findLen = len;
	    if(term.saveVisTop < i)
		term.visTop = term.saveVisTop;
	    else if(term.visTop > i || (i - term.visTop > term.rows))
		term.visTop = i;
	    term.updateScrollbarValues();
	    term.makeAllDirty(false);
	    term.makeSelection(i, j, i, j + len - 1);
	    curFindRow = i;
	    curFindCol = j;
	    findLen    = len;
	} else {
	    term.doBell();
	    curFindRow = 0;
	    curFindCol = 0;
	    findLen    = 0;
	}
    }

    FileDialog sendFileDialog = null;
    public final void sendFileDialog() {
	if(sendFileDialog == null) {
	    sendFileDialog = new FileDialog(term.ownerFrame, titleName +
					    " - Select ASCII-file to send", FileDialog.LOAD);
	}
	sendFileDialog.setVisible(true);

        if (com.mindbright.util.Util.isNetscapeJava()) {
            try {
                netscape.security.PrivilegeManager.enablePrivilege("UniversalFileAccess");
            } catch (netscape.security.ForbiddenTargetException e) {
            }
        }
        
	String fileName = sendFileDialog.getFile();
	String dirName  = sendFileDialog.getDirectory();
	if(fileName != null && fileName.length() > 0) {
	    try {
		FileInputStream fileIn = new FileInputStream(dirName + fileName);
		byte[] bytes = new byte[fileIn.available()];
		fileIn.read(bytes);
		term.sendBytes(bytes);
	    } catch (Throwable t) {
		AlertDialog.show(titleName + " - Alert", t.getMessage(),
				 term.ownerFrame);
	    }
	}
    }

    FileDialog captureToFileDialog = null;
    public final FileOutputStream chooseFileDialog(String title) {
        if (com.mindbright.util.Util.isNetscapeJava()) {
            try {
                netscape.security.PrivilegeManager.enablePrivilege("UniversalFileAccess");
            } catch (netscape.security.ForbiddenTargetException e) {
            }
        }
        
	if(captureToFileDialog == null) {
	    captureToFileDialog = new FileDialog(term.ownerFrame,
						 titleName + " - " + title,
						 FileDialog.SAVE);
	}
	captureToFileDialog.setVisible(true);

	String fileName = captureToFileDialog.getFile();
	String dirName  = captureToFileDialog.getDirectory();
	if(fileName != null && fileName.length() > 0) {
	    try {
		if(!dirName.endsWith(File.separator)) {
		    dirName += File.separator;
		}
		File file = new File(dirName + fileName);
		boolean append = false;
		if(file.exists()) {
		    append =
			ConfirmDialog.show(titleName + " - File exists",
					   "File exists, overwrite or append?",
					   0, 0, "Append", "Overwrite",
					   true, term.ownerFrame, false);
		}
		FileOutputStream fileOut =
		    new FileOutputStream(dirName + fileName, append);
		return fileOut;
	    } catch (Throwable t) {
		AlertDialog.show(titleName + " - Alert", t.getMessage(),
				 term.ownerFrame);
	    }
	}
	return null;
    }

    TerminalCapture termCapture;
    public final boolean captureToFileDialog() {
        if (com.mindbright.util.Util.isNetscapeJava()) {
            try {
                netscape.security.PrivilegeManager.enablePrivilege("UniversalFileAccess");
            } catch (netscape.security.ForbiddenTargetException e) {
            }
        }

	FileOutputStream fileOut =
	    chooseFileDialog("Select file to capture to");
	if(fileOut != null) {
	    termCapture = new TerminalCapture(fileOut);
	    termCapture.startCapture(term);
	    return true;
	}

	return false;
    }

    public void endCapture() {
	if(termCapture != null) {
	    termCapture.endCapture();
	    try {
		termCapture.getTarget().close();
	    } catch (IOException e) {
		AlertDialog.show(titleName + " - Alert", e.getMessage(),
				 term.ownerFrame);
	    }
	}
    }

    public void setEnabledOpt(int opt, boolean val) {
	((CheckboxMenuItem)menuItems[MENU_OPTIONS][opt + 1]).setEnabled(val);
    }

    public void setStateOpt(int opt, boolean val) {
	((CheckboxMenuItem)menuItems[MENU_OPTIONS][opt + 1]).setState(val);
    }

    public Menu getMenu(int idx) {
	Menu m = new Menu(menuTexts[idx][0]);
	int len = menuTexts[idx].length;
	MenuItem mi;
	String   t;

	if(menuItems == null)
	    menuItems = new Object[menuTexts.length][];
	if(menuItems[idx] == null)
	    menuItems[idx] = new Object[menuTexts[idx].length];

	for(int i = 1; i < len; i++) {
	    t = menuTexts[idx][i];
	    if(t == null) {
		m.addSeparator();
		continue;
	    }
	    if(t.charAt(0) == '_') {
		t = t.substring(1);
		mi = new CheckboxMenuItem(t);
		((CheckboxMenuItem)mi).addItemListener(this);
	    } else {
		mi = new MenuItem(t);
		mi.addActionListener(this);
	    }

	    if(menuShortCuts[idx][i] != NO_SHORTCUT) {
		mi.setShortcut(new MenuShortcut(menuShortCuts[idx][i], true));
	    }

	    menuItems[idx][i] = mi;
	    m.add(mi);
	}

	return m;
    }

    int[] mapAction(String action) {
	int[] id = new int[2];
	int i = 0, j = 0;

	for(i = 0; i < menuTexts.length; i++) {
	    for(j = 1; j < menuTexts[i].length; j++) {
		String mt = menuTexts[i][j];
		if(mt != null && action.equals(mt)) {
		    id[0] = i;
		    id[1] = j;
		    i = menuTexts.length;
		    break;
		}
	    }
	}
	return id;
    }

    public void actionPerformed(ActionEvent e) {
	int[] id = mapAction(((MenuItem)(e.getSource())).getLabel());
	handleMenuAction(id);
    }

    public void itemStateChanged(ItemEvent e) {
	int[] id = mapAction("_" + (String)e.getItem());
	handleMenuAction(id);
    }

    public void handleMenuAction(int[] id) {
	switch(id[0]) {
	case MENU_FILE:
	    switch(id[1]) {
	    case M_FILE_CAPTURE:
		if(((CheckboxMenuItem)
		    menuItems[MENU_FILE][M_FILE_CAPTURE]).getState()) {
		    if(!captureToFileDialog()) {
			((CheckboxMenuItem)
			 menuItems[MENU_FILE][M_FILE_CAPTURE]).setState(false);
		    }
		} else {
		    endCapture();
		}
		break;
	    case M_FILE_SEND:
		((TerminalMenuHandlerFull)term.getMenus()).sendFileDialog();
		break;
	    case M_FILE_CLOSE:
		if(listener != null) {
		    listener.close(this);
		}
		break;
	    }
	    break;

	case MENU_EDIT:
	    switch(id[1]) {
	    case M_EDIT_COPY:
		term.doCopy();
		break;
	    case M_EDIT_PASTE:
		term.doPaste();
		break;
	    case M_EDIT_CPPASTE:
		term.doCopy();
		term.doPaste();
		break;
	    case M_EDIT_SELALL:
		term.selectAll();
		break;
	    case M_EDIT_FIND:
		findDialog();
		break;
	    case M_EDIT_CLS:
		term.clearScreen();
		term.cursorSetPos(0, 0, false);
		break;
	    case M_EDIT_CLEARSB:
		term.clearSaveLines();
		break;
	    case M_EDIT_VTRESET:
		term.resetInterpreter();
		break;
	    }
	    break;

	case MENU_SETTINGS:
	    switch(id[1]) {
	    case M_SET_TERM:
		termSettingsDialog();
		break;
	    case M_SET_TERM_MSC:
		termSettingsDialog2();
		break;
	    case M_SET_TERM_COL:
		termColorsDialog();
		break;
	    }
	    break;

	case MENU_OPTIONS:
	    int i = id[1] - 1;
	    term.setProperty(TerminalDefProps.defaultPropDesc[i]
			     [TerminalDefProps.PROP_NAME],
			     String.valueOf(!term.termOptions[i]));
	    break;
	}
    }

    FileOutputStream printerOut;
    public void write(char c) {
	if(printerOut != null) {
	    try {
		printerOut.write((int)c);
	    } catch (IOException e) {
		AlertDialog.show(titleName + " - Alert", e.getMessage(),
				 term.ownerFrame);
	    }
	}
    }

    public void printScreen() {
	/* !!! TODO */
    }

    public void startPrinter() {
	printerOut = chooseFileDialog("Passthrough print to file");
    }

    public void stopPrinter() {
	if(printerOut != null) {
	    try { printerOut.close(); }
	    catch (IOException e) { /* don't care... */ }
	    printerOut = null;
	    AlertDialog.show(titleName + " - Alert",
			     "Passthrough printing ended, file saved.",
			     term.ownerFrame);
	}
    }

}