org.bonitasoft.console.client.view.ItemCommentEditorWidget.java Source code

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Here is the source code for org.bonitasoft.console.client.view.ItemCommentEditorWidget.java

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/**
 * Copyright (C) 2010 BonitaSoft S.A.
 * BonitaSoft, 31 rue Gustave Eiffel - 38000 Grenoble
 * This program 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 2.0 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.bonitasoft.console.client.view;

import java.util.List;

import org.bonitasoft.console.client.BonitaUUID;
import org.bonitasoft.console.client.CSSClassManager;
import org.bonitasoft.console.client.Item;
import org.bonitasoft.console.client.ItemFilter;
import org.bonitasoft.console.client.common.data.AsyncHandler;
import org.bonitasoft.console.client.model.BonitaFilteredDataSource;
import org.bonitasoft.console.client.steps.CommentItem;

import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.TextArea;

/**
 * @author Nicolas Chabanoles
 * 
 */
public abstract class ItemCommentEditorWidget<U extends BonitaUUID, I extends Item, F extends ItemFilter, D extends BonitaFilteredDataSource<U, I, F>>
        extends BonitaPanel {

    protected static final String ITEM_COMMENT_EDITOR_STYLE = "bos_item_comment_editor";
    protected static final String OPEN_SUFFIX_STYLE = "open";
    protected static final String ENTER_A_COMMENT = constants.enterAComment();
    protected static final String ITEM_COMMENT_EDITOR_ACTION_PANEL_STYLE = "bos_item_comment_editor_action";

    protected final D myItemDataSource;
    protected final I myItem;
    protected final FlowPanel myOuterPanel;
    protected final TextArea myNewCommentTextArea;
    protected AsyncHandler<List<CommentItem>> mySaveNewCommentHandler;
    protected CustomMenuBar mySaveButton;
    //  protected CustomMenuBar myCancelButton;
    private FlowPanel myActionPanel;

    public ItemCommentEditorWidget(D aDataSource, I anItem) {
        super();
        myItemDataSource = aDataSource;
        myItem = anItem;

        myNewCommentTextArea = new TextArea();
        myOuterPanel = new FlowPanel();
        myOuterPanel.setStylePrimaryName(ITEM_COMMENT_EDITOR_STYLE);

        initContent();
        initWidget(myOuterPanel);
    }

    protected void initContent() {
        myNewCommentTextArea.setText(ENTER_A_COMMENT);
        myNewCommentTextArea.addFocusHandler(new FocusHandler() {

            public void onFocus(FocusEvent aEvent) {
                if (ENTER_A_COMMENT.equals(myNewCommentTextArea.getValue())) {
                    toggleToCompleteView();
                }
            }
        });
        myNewCommentTextArea.addBlurHandler(new BlurHandler() {

            public void onBlur(BlurEvent aEvent) {
                if (myNewCommentTextArea.getValue() == null || myNewCommentTextArea.getValue().length() == 0) {
                    toggleToSimpleView();
                }
            }
        });
        final Image theIconPlaceHolder = new Image(PICTURE_PLACE_HOLDER);
        theIconPlaceHolder.setStylePrimaryName(CSSClassManager.COMMENT_ICON_STYLE);
        myOuterPanel.add(theIconPlaceHolder);
        myOuterPanel.add(myNewCommentTextArea);

    }

    protected void toggleToCompleteView() {
        if (mySaveButton == null) {
            buildSaveButton();
            myActionPanel = new FlowPanel();
            myActionPanel.setStylePrimaryName(ITEM_COMMENT_EDITOR_ACTION_PANEL_STYLE);
            myActionPanel.add(mySaveButton);
        }

        //    theActionPanel.add(myCancelButton);
        myNewCommentTextArea.setValue(null);
        myOuterPanel.addStyleDependentName(OPEN_SUFFIX_STYLE);
        myOuterPanel.add(myActionPanel);
    }

    //  protected void buildCancelButton() {
    //    myCancelButton = new CustomMenuBar();
    //    myCancelButton.addItem(constants.cancel(), new Command() {
    //      public void execute() {
    //        toggleToSimpleView();
    //      }
    //    });
    //
    //  }

    protected void toggleToSimpleView() {
        myNewCommentTextArea.setText(ENTER_A_COMMENT);
        myOuterPanel.removeStyleDependentName(OPEN_SUFFIX_STYLE);
        myOuterPanel.remove(myActionPanel);
    }

    private void buildSaveButton() {
        mySaveButton = new CustomMenuBar();
        mySaveButton.addItem(constants.save(), new Command() {
            public void execute() {
                saveNewComment();
            }
        });

    }

    protected abstract void saveNewComment();

}