com.esofthead.mycollab.vaadin.ui.SelectionOptionButton.java Source code

Introduction

Here is the source code for com.esofthead.mycollab.vaadin.ui.SelectionOptionButton.java

Source

/**
 * This file is part of mycollab-web.
 *
 * mycollab-web is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * mycollab-web is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with mycollab-web.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.esofthead.mycollab.vaadin.ui;

import com.esofthead.mycollab.vaadin.events.HasSelectableItemHandlers;
import com.esofthead.mycollab.vaadin.events.HasSelectionOptionHandlers;
import com.esofthead.mycollab.vaadin.events.SelectionOptionHandler;
import com.vaadin.server.FontAwesome;
import com.vaadin.server.Resource;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.VerticalLayout;

import java.util.HashSet;
import java.util.Set;

/**
 * 
 * @author MyCollab Ltd.
 * @since 2.0
 * 
 */
public class SelectionOptionButton extends SplitButton implements HasSelectionOptionHandlers {

    private static final long serialVersionUID = 1L;
    private boolean isSelectAll = false;
    private boolean isSelected = false;

    @SuppressWarnings("rawtypes")
    private final HasSelectableItemHandlers selectableItemHandlers;

    private Set<SelectionOptionHandler> handlers;

    private final Button selectAllBtn;
    private final Button selectThisPageBtn;

    @SuppressWarnings("serial")
    public SelectionOptionButton(
            @SuppressWarnings("rawtypes") final HasSelectableItemHandlers selectableItemHandlers) {
        super();
        this.selectableItemHandlers = selectableItemHandlers;
        addStyleName(UIConstants.THEME_BLUE_LINK);
        addStyleName(UIConstants.BUTTON_SMALL_PADDING);
        setIcon(FontAwesome.SQUARE_O);

        addClickListener(new SplitButtonClickListener() {
            @Override
            public void splitButtonClick(final SplitButtonClickEvent event) {
                toggleChangeOption();
            }
        });

        addPopupVisibilityListener(new SplitButtonPopupVisibilityListener() {
            @Override
            public void splitButtonPopupVisibilityChange(final SplitButtonPopupVisibilityEvent event) {
                if (event.isPopupVisible()) {
                    selectAllBtn.setCaption("Select All ("
                            + SelectionOptionButton.this.selectableItemHandlers.totalItemsCount() + ")");

                    selectThisPageBtn.setCaption("Select This Page ("
                            + SelectionOptionButton.this.selectableItemHandlers.currentViewCount() + ")");
                }
            }
        });

        final VerticalLayout selectContent = new VerticalLayout();
        selectContent.setWidth("150px");

        selectAllBtn = new ButtonLink("", new Button.ClickListener() {
            @Override
            public void buttonClick(final ClickEvent event) {
                isSelectAll = true;
                SelectionOptionButton.this.setIcon(FontAwesome.CHECK_SQUARE_O);
                fireSelectAll();
                SelectionOptionButton.this.setPopupVisible(false);
            }
        });
        selectContent.addComponent(selectAllBtn);

        selectThisPageBtn = new ButtonLink("", new Button.ClickListener() {
            @Override
            public void buttonClick(final ClickEvent event) {
                isSelectAll = false;
                SelectionOptionButton.this.setIcon(FontAwesome.CHECK_SQUARE_O);
                fireSelectCurrentPage();
                SelectionOptionButton.this.setPopupVisible(false);
            }
        });
        selectContent.addComponent(selectThisPageBtn);

        Button deSelectBtn = new ButtonLink("Deselect All", new Button.ClickListener() {
            @Override
            public void buttonClick(final ClickEvent event) {
                isSelectAll = false;
                SelectionOptionButton.this.setIcon(FontAwesome.SQUARE_O);
                fireDeselect();
                SelectionOptionButton.this.setPopupVisible(false);
            }
        });
        selectContent.addComponent(deSelectBtn);
        setContent(selectContent);
    }

    @Override
    public void addSelectionOptionHandler(final SelectionOptionHandler handler) {
        if (handlers == null) {
            handlers = new HashSet<>();
        }
        handlers.add(handler);
    }

    private void fireDeselect() {
        if (handlers != null) {
            for (final SelectionOptionHandler handler : handlers) {
                handler.onDeSelect();
            }
        }
    }

    private void fireSelectAll() {
        if (handlers != null) {
            for (final SelectionOptionHandler handler : handlers) {
                handler.onSelectAll();
            }
        }

    }

    private void fireSelectCurrentPage() {
        if (handlers != null) {
            for (final SelectionOptionHandler handler : handlers) {
                handler.onSelectCurrentPage();
            }
        }
    }

    public void setSelectedChecbox(final boolean selected) {
        isSelected = selected;
        final Resource icon = (selected) ? FontAwesome.CHECK_SQUARE_O : FontAwesome.SQUARE_O;
        SelectionOptionButton.this.setIcon(icon);
    }

    private void toggleChangeOption() {
        if (isSelectAll) {
            return;
        }

        isSelected = !isSelected;
        final Resource icon = (isSelected) ? FontAwesome.CHECK_SQUARE_O : FontAwesome.SQUARE_O;
        this.setIcon(icon);

        if (isSelected) {
            fireSelectCurrentPage();
        } else {
            fireDeselect();
        }
    }
}