ChangeBuildConfigWidget.java

package com.mobilesorcery.sdk.ui.internal.actions;

import java.beans.PropertyChangeEvent;
import java.text.MessageFormat;

import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;

import com.mobilesorcery.sdk.core.IBuildConfiguration;
import com.mobilesorcery.sdk.core.MoSyncProject;
import com.mobilesorcery.sdk.ui.BuildConfigurationsContentProvider;
import com.mobilesorcery.sdk.ui.BuildConfigurationsLabelProvider;
import com.mobilesorcery.sdk.ui.MosyncUIPlugin;

public class ChangeBuildConfigWidget extends MoSyncProjectWidget implements ISelectionChangedListener {

    private ComboViewer combo;

	@Override
	public boolean shouldUpdateProject(PropertyChangeEvent event) {
        // Project changed
        return MosyncUIPlugin.CURRENT_PROJECT_CHANGED == event.getPropertyName() || MoSyncProject.BUILD_CONFIGURATION_CHANGED == event.getPropertyName();
    }

    @Override
    public Control createControl(Composite parent) {
    	attachListeners();
        ComboViewer ui = new ComboViewer(parent, SWT.READ_ONLY);
        ui.addSelectionChangedListener(this);
        this.combo = ui;
        updateUI();
        return ui.getControl();
    }

    @Override
	public void selectionChanged(SelectionChangedEvent event) {
        IStructuredSelection selection = (IStructuredSelection) event.getSelection();
        String cfgId = (String) selection.getFirstElement();
        if (cfgId != null) {
            project.setActiveBuildConfiguration(cfgId);
        }
    }

    @Override
	protected void noProjectSelected() {
    	combo.getCombo().setItems( new String[] {"No project selected"} );
    	combo.getCombo().select(0);
    }

	@Override
	public void updateUI() {
        boolean activeCombo = project != null && project.areBuildConfigurationsSupported() && !project.getBuildConfigurations().isEmpty();
		if (activeCombo) {
            combo.setContentProvider(new BuildConfigurationsContentProvider(project));
            combo.setLabelProvider(new BuildConfigurationsLabelProvider(project, false));
            combo.setInput(project);
            IBuildConfiguration cfg = project.getActiveBuildConfiguration();
            combo.setSelection(cfg == null ? new StructuredSelection() : new StructuredSelection(cfg.getId()));
            combo.getControl().setToolTipText(MessageFormat.format("Set configuration for project {0}", project.getName()));
        } else {
            noProjectSelected();
        }
        combo.getControl().setEnabled(activeCombo);
	}

}