[isidorus-cvs] r532 - in branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets: . base environment isidorus - isidorus-cvs@common-lisp.net - mailman3.common-lisp.net

29 Jun 2011

Author: lgiessmann
Date: Wed Jun 29 14:37:50 2011
New Revision: 532
Log:
gdl-frontend: Widgets: added the class Pair<T, U>; added a dialogbox example; started to implement a LoadSchemaCallback class for isidorus
Added:
   branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/isidorus/LoadSchemaCallback.java
Modified:
   branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/GDL_Widgets.gwt.xml
   branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/GdlPanel.java
   branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/TestClass.java
   branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/environment/ILoadSchemaCallback.java
   branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/environment/Pair.java
Modified: branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/GDL_Widgets.gwt.xml
==============================================================================

--- branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/GDL_Widgets.gwt.xml	Wed Jun 29 13:00:44 2011	(r531)
+++ branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/GDL_Widgets.gwt.xml	Wed Jun 29 14:37:50 2011	(r532)
@@ -2,6 +2,7 @@
 <module rename-to='gdl_widgets'>
   <!-- Inherit the core Web Toolkit stuff.                        -->
   <inherits name='com.google.gwt.user.User'/>
+  <inherits name="com.google.gwt.http.HTTP" />
<!-- Inherit the default GWT style sheet.  You can change       -->
   <!-- the theme of your GWT application by uncommenting          -->
Modified: branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/GdlPanel.java
==============================================================================
--- branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/GdlPanel.java	Wed Jun 29 13:00:44 2011	(r531)
+++ branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/GdlPanel.java	Wed Jun 29 14:37:50 2011	(r532)
@@ -99,14 +99,14 @@
    }
-	public void addOnErrorHandler(String descriptorId, IGdlErrorHandler handler){
+	public void registerOnErrorHandler(String descriptorId, IGdlErrorHandler handler){
    	if(!localOnErrorContainer.contains(handler)){
    		localOnErrorContainer.add(handler);
    	}
    }
    
    
-	public void removeOnErrorHandler(String descriptorId, IGdlErrorHandler handler){
+	public void deregisterOnErrorHandler(String descriptorId, IGdlErrorHandler handler){
    	localOnErrorContainer.remove(handler);
    }
    
@@ -165,6 +165,11 @@
    	return this.deleteCallback;
    }
    
+	// a getter for the internal topic map
+	public TopicMap getTm(){
+		return this.tm;
+	}
+	
    
    // this method is responsible for loading the Topic Map by using the
    // loadCallback. After a successfully load operation the
@@ -177,7 +182,7 @@
    		if(this.loadSchemaCallback == null){
    			throw new ExecutionException("No LoadCallback was set yet");
    		}
-			this.loadSchemaCallback.loadSchema(tm, this.requestedInstance, this.requestedTypes);
+			this.loadSchemaCallback.loadSchema(this, this.requestedInstance, this.requestedTypes);
    		
    	}catch(Exception e){
    		for (IGdlErrorHandler handler : localOnErrorContainer) {
@@ -269,7 +274,7 @@
    public void createView(){
    	try{
    		// TODO: Implement
-			// TODO: register the handlers to the elements with the corresponding id
+			// TODO: register callbacks to the elements with the corresponding id
    	}catch(Exception e){
    		for (IGdlErrorHandler handler : localOnErrorContainer) {
    			handler.onError(GdlErrorTypes.ViewCreationError, e);
@@ -282,4 +287,9 @@
    public void clear(){
    	this.mainPanel.clear();
    }
+
+	
+	// TODO: implement registration/deregistration for event handlers/callbacks for a specific element
+	//	     specified by its element id
+	// TODO: implement a registration for Action-Buttons specified by the element's id
 }
Modified: branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/TestClass.java
==============================================================================
--- branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/TestClass.java	Wed Jun 29 13:00:44 2011	(r531)
+++ branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/TestClass.java	Wed Jun 29 14:37:50 2011	(r532)
@@ -1,10 +1,17 @@
 package us.isidor.gdl.anaToMia.Widgets.base;
import com.google.gwt.core.client.EntryPoint;
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.dom.client.ClickHandler;
 import com.google.gwt.user.client.DOM;
 import com.google.gwt.user.client.Window;
+import com.google.gwt.user.client.ui.Button;
+import com.google.gwt.user.client.ui.DialogBox;
+import com.google.gwt.user.client.ui.HTML;
 import com.google.gwt.user.client.ui.HorizontalPanel;
 import com.google.gwt.user.client.ui.RootPanel;
+import com.google.gwt.user.client.ui.SimplePanel;
+import com.google.gwt.user.client.ui.VerticalPanel;
public class TestClass implements EntryPoint{
@@ -22,6 +29,42 @@
    	gdlPanel.setPixelSize(100, 100);
    	DOM.setStyleAttribute(gdlPanel.getElement(), "backgroundColor", "yellow");
    	mainPanel.add(gdlPanel);
+		
+		testDialogBox();
+	}
+	
+	
+	public void testDialogBox(){
+		final DialogBox dialogbox = new DialogBox();
+		VerticalPanel dialogBoxContents = new VerticalPanel();
+	    dialogbox.setText("DialogBox");
+	    HTML message = new HTML("Click 'Close' to close");
+	    message.setStyleName("demo-DialogBox-message");
+	    ClickHandler listener = new ClickHandler()
+	    {
+	        @Override
+			public void onClick(ClickEvent event) {
+				dialogbox.hide();
+			}
+	    };
+	    Button button = new Button("Close", listener);
+	    SimplePanel holder = new SimplePanel();
+	    holder.add(button);
+	    dialogBoxContents.add(message);
+	    dialogBoxContents.add(holder);
+	    dialogbox.setWidget(dialogBoxContents);
+	    
+	    //
+	    // Add a button to the demo to show the above DialogBox
+	    listener = new ClickHandler()
+	    {
+	        @Override
+			public void onClick(ClickEvent event) {
+				dialogbox.center();
+			}
+	    };
+	    button = new Button("Show DialogBox", listener);
+	    mainPanel.add(button);
    }
}
Modified: branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/environment/ILoadSchemaCallback.java
==============================================================================
--- branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/environment/ILoadSchemaCallback.java	Wed Jun 29 13:00:44 2011	(r531)
+++ branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/environment/ILoadSchemaCallback.java	Wed Jun 29 14:37:50 2011	(r532)
@@ -1,8 +1,11 @@
 package us.isidor.gdl.anaToMia.Widgets.environment;
+import com.google.gwt.http.client.RequestException;
+
 import us.isidor.gdl.anaToMia.TopicMaps.TopicMapsModel.Construct;
 import us.isidor.gdl.anaToMia.TopicMaps.TopicMapsModel.TopicMap;
+import us.isidor.gdl.anaToMia.Widgets.base.GdlPanel;
public interface ILoadSchemaCallback {
-	public Construct loadSchema(TopicMap tm, String instanceIdentifier, String[] typeIdentifiers);
+	public void loadSchema(GdlPanel panel, String instanceIdentifier, String[] typeIdentifiers)throws RequestException;
 }
Modified: branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/environment/Pair.java
==============================================================================
--- branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/environment/Pair.java	Wed Jun 29 13:00:44 2011	(r531)
+++ branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/environment/Pair.java	Wed Jun 29 14:37:50 2011	(r532)
@@ -1,5 +1,26 @@
 package us.isidor.gdl.anaToMia.Widgets.environment;
-public class Pair {
-
+public class Pair<T, U> {
+	private T first = null;
+	private U second = null;
+	
+	
+	@SuppressWarnings("unused")
+	private Pair(){}
+	
+	
+	public Pair(T first, U second){
+		this.first = first;
+		this.second = second;
+	}
+	
+	
+	public T getFirst(){
+		return this.first;
+	}
+	
+	
+	public U getSecond(){
+		return this.second;
+	}
 }
Added: branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/isidorus/LoadSchemaCallback.java
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/isidorus/LoadSchemaCallback.java	Wed Jun 29 14:37:50 2011	(r532)
@@ -0,0 +1,57 @@
+package us.isidor.gdl.anaToMia.Widgets.isidorus;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.http.client.Request;
+import com.google.gwt.http.client.RequestBuilder;
+import com.google.gwt.http.client.RequestCallback;
+import com.google.gwt.http.client.RequestException;
+import com.google.gwt.http.client.Response;
+import com.google.gwt.http.client.URL;
+import us.isidor.gdl.anaToMia.TopicMaps.TopicMapsModel.Construct;
+import us.isidor.gdl.anaToMia.TopicMaps.TopicMapsModel.TopicMap;
+import us.isidor.gdl.anaToMia.Widgets.base.GdlPanel;
+import us.isidor.gdl.anaToMia.Widgets.environment.ILoadSchemaCallback;
+
+
+public class LoadSchemaCallback implements ILoadSchemaCallback{
+	private final String isidorusUrl = URL.encode(GWT.getModuleBaseURL() + "testJson.txt"); // TODO: replace with the correct URL
+	private RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, isidorusUrl);
+	
+	public LoadSchemaCallback(){}
+	
+	
+	@Override
+	public void loadSchema(GdlPanel panel, String instanceIdentifier,	String[] typeIdentifiers) throws RequestException {
+		Request request = requestBuilder.sendRequest(null, new RequestCallbackImpl(panel));
+	}
+
+	
+	private class RequestCallbackImpl implements RequestCallback{
+		private GdlPanel panel = null;
+		
+		
+		@SuppressWarnings("unused")
+		private RequestCallbackImpl() {}
+		
+		
+		public RequestCallbackImpl(GdlPanel panel){
+			this.panel = panel;
+		}
+		
+		
+		@Override
+		public void onResponseReceived(Request request, Response response) {
+			if(Response.SC_OK == response.getStatusCode()){
+				panel.createView();
+			} else {
+				// TODO: implement error handling => http://examples.roughian.com/index.htm#Widgets~DialogBox
+			}
+		}
+		
+		
+		@Override
+		public void onError(Request request, Throwable exception) {
+			// TODO: implement error handling => http://examples.roughian.com/index.htm#Widgets~DialogBox
+		}
+	}
+}

    