Ok, yikes. I created the following tiny sample to try and find out
which events fire when.
I did have a handler for *every* possible TextBox event but the mouse
over and move events just flooded everything -- I removed those.
Now I load the test. I select some text that is outside of the text
box and move the cursor to the text box. I click in the textbox to
gain focus and the event flooding starts again. I click to paste-in
the copied text and more event flooding happens but no text is
actually pasted.
I will keep pruning down on event handlers.
package test.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.event.dom.client.KeyDownEvent;
import com.google.gwt.event.dom.client.KeyDownHandler;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.event.dom.client.KeyPressHandler;
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.MouseUpEvent;
import com.google.gwt.event.dom.client.MouseUpHandler;
import com.google.gwt.event.dom.client.MouseWheelEvent;
import com.google.gwt.event.dom.client.MouseWheelHandler;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.TextBox;
public class Test implements EntryPoint {
public void onModuleLoad() {
final Button sendButton = new Button("Send");
final TextBox nameField = new TextBox();
sendButton.setEnabled(false);
nameField.addBlurHandler(new BlurHandler(){
@Override
public void onBlur(BlurEvent event) {
Window.alert(event.toDebugString());
}});
nameField.addChangeHandler(new ChangeHandler(){
@Override
public void onChange(ChangeEvent event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
nameField.addClickHandler(new ClickHandler(){
@Override
public void onClick(ClickEvent event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
nameField.addFocusHandler(new FocusHandler(){
@Override
public void onFocus(FocusEvent event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
nameField.addKeyDownHandler(new KeyDownHandler(){
@Override
public void onKeyDown(KeyDownEvent event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
nameField.addKeyPressHandler(new KeyPressHandler(){
@Override
public void onKeyPress(KeyPressEvent event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
nameField.addKeyUpHandler(new KeyUpHandler(){
@Override
public void onKeyUp(KeyUpEvent event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
nameField.addMouseDownHandler(new MouseDownHandler(){
@Override
public void onMouseDown(MouseDownEvent event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
nameField.addMouseUpHandler(new MouseUpHandler(){
@Override
public void onMouseUp(MouseUpEvent event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
nameField.addMouseWheelHandler(new MouseWheelHandler(){
@Override
public void onMouseWheel(MouseWheelEvent event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
nameField.addValueChangeHandler(new
ValueChangeHandler<String>(){
@Override
public void onValueChange(ValueChangeEvent<String>
event) {
// TODO Auto-generated method stub
Window.alert(event.toDebugString());
}});
RootPanel.get("nameFieldContainer").add(nameField);
RootPanel.get("sendButtonContainer").add(sendButton);
}
}
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