/*******************************************************************************
 * Copyright (c) 2012, 2013, 2015 Original authors and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Original authors and others - initial API and implementation
 ******************************************************************************/
package org.eclipse.nebula.widgets.nattable.ui.mode;

import org.eclipse.nebula.widgets.nattable.NatTable;
import org.eclipse.nebula.widgets.nattable.ui.NatEventData;
import org.eclipse.nebula.widgets.nattable.ui.action.IDragMode;
import org.eclipse.nebula.widgets.nattable.ui.action.IKeyAction;
import org.eclipse.nebula.widgets.nattable.ui.action.IMouseAction;
import org.eclipse.nebula.widgets.nattable.ui.binding.UiBindingRegistry;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.MouseEvent;

public class ConfigurableModeEventHandler extends AbstractModeEventHandler {

    public ConfigurableModeEventHandler(ModeSupport modeSupport, NatTable natTable) {
        super(modeSupport, natTable);
    }

    // Event handling /////////////////////////////////////////////////////////

    @Override
    public void keyPressed(KeyEvent event) {
        IKeyAction keyAction = getUiBindingRegistry().getKeyEventAction(event);
        if (keyAction != null) {
            this.natTable.forceFocus();
            keyAction.run(this.natTable, event);
        }
    }

    @Override
    public void mouseDown(MouseEvent event) {
        if (this.natTable.commitAndCloseActiveCellEditor()) {
            IMouseAction mouseDownAction = getUiBindingRegistry().getMouseDownAction(event);
            if (mouseDownAction != null) {
                event.data = NatEventData.createInstanceFromEvent(event);
                mouseDownAction.run(this.natTable, event);
            }

            IMouseAction singleClickAction = getUiBindingRegistry().getSingleClickAction(event);
            IMouseAction doubleClickAction = getUiBindingRegistry().getDoubleClickAction(event);
            IDragMode dragMode = getUiBindingRegistry().getDragMode(event);

            if (singleClickAction != null || doubleClickAction != null || dragMode != null) {
                switchMode(new MouseModeEventHandler(
                        getModeSupport(), this.natTable, event,
                        singleClickAction, doubleClickAction, dragMode));
            }
        }
    }

    @Override
    public synchronized void mouseMove(MouseEvent event) {
        if (event.x >= 0 && event.y >= 0) {
            IMouseAction mouseMoveAction = getUiBindingRegistry().getMouseMoveAction(event);
            if (mouseMoveAction != null) {
                event.data = NatEventData.createInstanceFromEvent(event);
                mouseMoveAction.run(this.natTable, event);
            } else {
                this.natTable.setCursor(null);
            }
        }
    }

    @Override
    public synchronized void mouseHover(MouseEvent event) {
        if (event.x >= 0 && event.y >= 0) {
            IMouseAction mouseHoverAction = getUiBindingRegistry().getMouseHoverAction(event);
            if (mouseHoverAction != null) {
                event.data = NatEventData.createInstanceFromEvent(event);
                mouseHoverAction.run(this.natTable, event);
            }
        }
    }

    @Override
    public synchronized void mouseEnter(MouseEvent event) {
        if (event.x >= 0 && event.y >= 0) {
            IMouseAction mouseEnterAction = getUiBindingRegistry().getMouseEnterAction(event);
            if (mouseEnterAction != null) {
                event.data = NatEventData.createInstanceFromEvent(event);
                mouseEnterAction.run(this.natTable, event);
            } else {
                this.natTable.setCursor(null);
            }
        }
    }

    @Override
    public synchronized void mouseExit(MouseEvent event) {
        IMouseAction mouseExitAction = getUiBindingRegistry().getMouseExitAction(event);
        if (mouseExitAction != null) {
            event.data = NatEventData.createInstanceFromEvent(event);
            mouseExitAction.run(this.natTable, event);
        } else {
            this.natTable.setCursor(null);
        }
    }

    private UiBindingRegistry getUiBindingRegistry() {
        return this.natTable.getUiBindingRegistry();
    }

}