vmereports-manager-portlet/src/main/java/org/gcube/portlets/user/reportgenerator/client/targets/D4sRichTextarea.java

package org.gcube.portlets.user.reportgenerator.client.targets;

import org.gcube.portlets.d4sreporting.common.client.ComponentType;
import org.gcube.portlets.user.reportgenerator.client.ReportGenerator;
import org.gcube.portlets.user.reportgenerator.client.Presenter.Presenter;

import com.extjs.gxt.ui.client.widget.MessageBox;
import com.google.gwt.event.dom.client.KeyDownEvent;
import com.google.gwt.event.dom.client.KeyDownHandler;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.event.dom.client.MouseDownEvent;
import com.google.gwt.event.dom.client.MouseDownHandler;
import com.google.gwt.event.dom.client.MouseOutEvent;
import com.google.gwt.event.dom.client.MouseOutHandler;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HasVerticalAlignment;
import com.google.gwt.user.client.ui.RichTextArea;
import com.google.gwt.user.client.ui.TextArea;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;


/**
 * <code> D4sRichTextArea </code> class is a template component that goes into the workspace
 *
 * @author Massimiliano Assante, ISTI-CNR - massimiliano.assante@isti.cnr.it
 * @version October 2008 (0.2) 
 */
public class D4sRichTextarea extends ReportTextArea {

	/**
	 * the text area 
	 */
	private RichTextArea area = new RichTextArea();

	
	TextArea text = new TextArea();
	/**
	 * a flag
	 */
	boolean firstClick = true;

	int currHeight = 0;
	
	VerticalPanel myPanel;
	/**
	 * 
	 *
	 */
	public D4sRichTextarea() {}

	/**
	 * 
	 * @param presenter .
	 * @param left left
	 * @param top top 
	 * @param width .
	 * @param height . 
	 * @param type .
	 */
	public D4sRichTextarea(ComponentType type, final Presenter presenter, int left, int top, int width,  final int height, boolean hasComments) {
		super(type, presenter, left, top, width, height, hasComments);
		currHeight = height;
		myPanel = getResizablePanel();

		area.setPixelSize(width-6, height-2);
		area.setStyleName("d4sRichTextArea");

		
		switch (type) {
		case TITLE:
			area.addStyleName("");
			break;
		case HEADING_1:
			area.addStyleName("");
			break;
		case HEADING_2:
			area.addStyleName("");
			break;
		case HEADING_3:
			area.addStyleName("");
			break;
		case BODY:
			area.addStyleName("bodyArea");
			break;				
		default:
			break;
		}
		
		
		myPanel.add(area);
		//repositionMyPanel(0, 15);
		myPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_BOTTOM);
		myPanel.setPixelSize(width, height-15);
		setStyleName("d4sFrame");

		area.addMouseDownHandler(new MouseDownHandler() {
			public void onMouseDown(MouseDownEvent event) {
				if (event.getNativeButton() == Event.BUTTON_RIGHT) {
					event.preventDefault();
					event.stopPropagation();
					 MessageBox.alert("Warning","Please, use CTRL+V (CMD+V) for pasting into this area", null);
				}
				if (firstClick) {
					presenter.enableTextToolBar(area);
					presenter.enableBiblioEntry(area);
					firstClick = false;
					ReportGenerator.get().getDivHidden().setPixelSize(area.getOffsetWidth(), -1);
				}		
				HTML div = ReportGenerator.get().getDivHidden();
				div.setHTML(area.getHTML());
				int newHeight = div.getOffsetHeight()+20 ;
				if (newHeight > height-10 && newHeight != currHeight) {
					presenter.shiftComponentsByTextArea(myInstance.top, newHeight - currHeight);
					resizePanel(myPanel.getOffsetWidth(), div.getOffsetHeight());
					//Window.alert("myInstance.top: " + myInstance.top);
					presenter.resizeTemplateComponentInModel(myInstance, myPanel.getOffsetWidth(), newHeight);				
				}
			}			
		});

		area.addMouseOutHandler(new MouseOutHandler() {
			public void onMouseOut(MouseOutEvent event) {
				firstClick = true;
				presenter.storeChangeInSession((Widget) event.getSource());
			}
			
		});
		//TODO: aggiorna
//		area.addKeyDownHandler(new KeyDownHandler() {
//			public void onKeyDown(KeyDownEvent event) { 
////				if (event.isAnyModifierKeyDown() && event.getNativeKeyCode() == 86) { //event.getNativeKeyCode() == 86 is the V (to avoid ctrl V or cmd V)
////					MessageBox.show(new MessageBoxConfig() {  
////	                    {  
////	                        setTitle("Paste operation");  
////	                        setMsg("Please enter your text here (PLAIN)");  
////	                        setWidth(500);  
////	                        setButtons(MessageBox.OKCANCEL);  
////	                        setMultiline(true);  
////	                        setCallback(new MessageBox.PromptCallback() {  
////	                            public void execute(String btnID, String text) {  
////	                            	if (btnID.compareTo("ok") == 0) {
////	                            		area.setText(text);  
////
////		    							//resize if needed
////		                        		HTML div = ReportGenerator.get().getDivHidden();
////		    							//GWT.log("element.getHTML():\n" + area.getHTML(), null);
////		    							div.setHTML(area.getHTML());
////		    							int newHeight = div.getOffsetHeight()+20 ;
////		    							if (newHeight > height-10 && newHeight != currHeight) {
////		    								resizePanel(myPanel.getOffsetWidth(), div.getOffsetHeight());
////		    							}			
////	                            	}
////	                       			
////	                            }  
////	                        });  
////	                     }  
////	                });  					
//					event.stopPropagation();
//					event.preventDefault();
//				}
//
//			}
//		});
		area.addKeyUpHandler(new KeyUpHandler() {
			public void onKeyUp(KeyUpEvent event) {
				HTML div = ReportGenerator.get().getDivHidden();
				div.setHTML(area.getHTML());
				int newHeight = div.getOffsetHeight()+20 ;
				if (newHeight > height-10 && newHeight != currHeight) {
					presenter.shiftComponentsByTextArea(myInstance.top, newHeight - currHeight);
					resizePanel(myPanel.getOffsetWidth(), div.getOffsetHeight());
					//Window.alert("myInstance.top: " + myInstance.top);
					presenter.resizeTemplateComponentInModel(myInstance, myPanel.getOffsetWidth(), newHeight);
				}	
			}			
		});
	}

	/**
	 * used to resize the panel
	 * @param width w
	 * @param height h
	 */
	@Override
	public void resizePanel(int width, int height) {
		if (height > 15 && width > 15) {
			mainPanel.setPixelSize(width, height+20);			
			resizablePanel.setPixelSize(width, height+20);
			mainPanel.setWidgetPosition(topPanel, width-30 , 0);
			area.setPixelSize(width-4, height+20);
			currHeight = height + 20;
		}
	}

	/**
	 * 
	 * @return .
	 */
	public String getHTML() {
		return area.getHTML();
	}
	
	/**
	 * @param html the html
	 */
	public void setHTML(String html) {
		area.setHTML(html);
	}
	/**
	 * 
	 * @return .
	 */
	public RichTextArea getArea() {
		return area;
	}

	/**
	 * 
	 * @param firstClick .
	 */
	public void setFirstClick(boolean firstClick) {
		this.firstClick = firstClick;
	}
}