public void transitionTo(final ScanningState state, final Transition transition) {
if (statusBar.isDisposed() || transition == Transition.INIT) return;
// TODO: separate GUI and non-GUI stuff
switch (state) {
case IDLE:
// reset state text
button.setEnabled(true);
updateProgress(null, 0, 0);
statusBar.setStatusText(null);
break;
case STARTING:
// start the scan from scratch!
resultTable.removeAll();
try {
scannerThread =
scannerThreadFactory.createScannerThread(
feederRegistry.createFeeder(),
StartStopScanningAction.this,
createResultsCallback(state));
stateMachine.startScanning();
mainWindowTitle = statusBar.getShell().getText();
} catch (RuntimeException e) {
stateMachine.reset();
throw e;
}
break;
case RESTARTING:
// restart the scanning - rescan
resultTable.resetSelection();
try {
scannerThread =
scannerThreadFactory.createScannerThread(
feederRegistry.createRescanFeeder(resultTable.getSelection()),
StartStopScanningAction.this,
createResultsCallback(state));
stateMachine.startScanning();
mainWindowTitle = statusBar.getShell().getText();
} catch (RuntimeException e) {
stateMachine.reset();
throw e;
}
break;
case SCANNING:
scannerThread.start();
break;
case STOPPING:
statusBar.setStatusText(Labels.getLabel("state.waitForThreads"));
break;
case KILLING:
button.setEnabled(false);
statusBar.setStatusText(Labels.getLabel("state.killingThreads"));
break;
}
// change button image
button.setImage(buttonImages[state.ordinal()]);
button.setText(buttonTexts[state.ordinal()]);
}
public void handleEvent(Event event) {
InputDialog dialog =
new InputDialog(Labels.getLabel("title.find"), Labels.getLabel("text.find"));
String text = dialog.open(lastText, Labels.getLabel("button.find.next"));
if (text == null) {
return;
}
lastText = text;
try {
statusBar.setStatusText(Labels.getLabel("state.searching"));
findText(text, statusBar.getShell());
} finally {
statusBar.setStatusText(null);
}
}