package org.vimplugin.listeners;
import java.util.ArrayList;
import org.eclim.logging.Logger;
import org.eclim.util.StringUtils;
import org.eclipse.jface.bindings.keys.KeyStroke;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.Workbench;
import org.eclipse.ui.internal.keys.BindingService;
import org.eclipse.ui.internal.keys.WorkbenchKeyboard;
import org.eclipse.ui.keys.IBindingService;
import org.vimplugin.DisplayUtils;
import org.vimplugin.VimEvent;
import org.vimplugin.VimException;
/**
* Listen for feed keys request from vim.
*/
public class FeedKeys
implements IVimListener
{
private static final Logger logger = Logger.getLogger(FeedKeys.class);
/**
* {@inheritDoc}
* @see IVimListener#handleEvent(VimEvent)
*/
public void handleEvent(VimEvent ve)
throws VimException
{
String argument = null;
if (ve.getEvent().equals("keyCommand") &&
(argument = ve.getArgument(0)).startsWith("\"feedkeys "))
{
String keys = argument.substring(10, argument.length() - 1);
// strip surrounding quotes if necessary.
keys = keys.replaceAll("^\'(.*)\'$", "$1");
keys = keys.replaceAll("^\"(.*)\"$", "$1");
feedKeys(keys);
}
}
private void feedKeys(final String keys)
{
try{
final Workbench workbench = (Workbench)PlatformUI.getWorkbench();
final Display display = workbench.getDisplay();
// first issue a click on the eclipse workbench, to prevent gvim from
// retaining focus after key stroke is processed.
final int[] bounds = new int[2];
display.syncExec(new Runnable(){
public void run()
{
Shell shell = display.getActiveShell();
if (shell == null){ // happens on windows
shell = display.getShells()[0];
}
Point point = shell.toDisplay(1, 1);
bounds[0] = point.x;
bounds[1] = point.y;
}
});
DisplayUtils.doClick(display, bounds[0] + 5, bounds[1] + 5, false);
final String[] sequences = StringUtils.split(keys, ',');
// process the actual key stroke.
display.asyncExec(new Runnable(){
public void run(){
BindingService bindingService = (BindingService)
PlatformUI.getWorkbench().getAdapter(IBindingService.class);
WorkbenchKeyboard keyboard = bindingService.getKeyboard();
for(String sequence : sequences){
try{
if (sequence.equals("refocus")){
logger.debug("refocus gvim");
IWorkbenchPage page = PlatformUI.getWorkbench()
.getActiveWorkbenchWindow().getActivePage();
IEditorPart editor = page.getActiveEditor();
if (editor != null){
editor.setFocus();
}
continue;
}
KeyStroke keyStroke = KeyStroke.getInstance(sequence);
Event event = new Event();
event.widget = display.getActiveShell();
ArrayList<KeyStroke> keyStrokes = new ArrayList<KeyStroke>();
keyStrokes.add(keyStroke);
keyboard.press(keyStrokes, event);
logger.debug("key strokes processed: " + sequence);
}catch(Throwable t){
logger.error("Error feeding keys.", t);
}
}
}
});
}catch(Throwable t){
logger.error("Error feeding keys.", t);
}
}
}