我正在尝试创建一个模式确认对话框。我希望它能像Window.confirm("")
那样工作,我可以在其中调用它,并获得布尔响应。GWT确认对话框
我的麻烦是我不知道该怎么做。我试图在我的应用程序中使用MVP。这里是我的代码至今:
public class DialogBoxPresenter implements Presenter {
public interface Display {
Label getDialogText();
Button getAffirmativeButton();
Button getCancelButton();
Widget asWidget();
public void center();
public void hide();
public void setHeader(String text);
}
private Display display;
private String header;
private String dialogText;
private String cancelButtonText;
private String affirmativeButtonText;
protected DialogBoxPresenter() {
}
public DialogBoxPresenter(Display display, String header, String dialogText, String cancelButtonText, String affirmativeButtonText) {
this.display = display;
this.header = header;
this.dialogText = dialogText;
this.cancelButtonText = cancelButtonText;
this.affirmativeButtonText = affirmativeButtonText;
bind();
}
public DialogBoxPresenter(Display display, String header, String dialogText) {
this.display = display;
this.header = header;
this.dialogText = dialogText;
this.cancelButtonText = "Cancel";
this.affirmativeButtonText = "OK";
bind();
}
private void bind() {
this.display.getDialogText().setText(dialogText);
this.display.getAffirmativeButton().setText(affirmativeButtonText);
this.display.getCancelButton().setText(cancelButtonText);
this.display.setHeader(header);
addClickHandlers();
}
private void addClickHandlers() {
this.display.getAffirmativeButton().addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
doAffirmative();
}
});
this.display.getCancelButton().addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
doCancel();
}
});
}
private void doAffirmative() {
//do something
display.hide();
}
private void doCancel() {
//do something
display.hide();
}
public void init() {
display.center();
}
@Override
public void go(HasWidgets container) {
container.clear();
container.add(display.asWidget());
}
}
和我的观点:
public class DialogBoxView extends DialogBox implements DialogBoxPresenter.Display {
private Label dialogText;
private Button affirmativeButton;
private Button cancelButton;
private VerticalPanel container;
public DialogBoxView() {
//init items
dialogText = new Label();
affirmativeButton = new Button();
cancelButton = new Button();
container = new VerticalPanel();
setGlassEnabled(true);
setAnimationEnabled(true);
setModal(false);
init();
}
private void init() {
//add items
container.add(dialogText);
HorizontalPanel hp = new HorizontalPanel();
hp.add(affirmativeButton);
hp.add(cancelButton);
container.add(hp);
this.add(container);
}
@Override
public Widget asWidget() {
return this;
}
@Override
public Label getDialogText() {
return dialogText;
}
@Override
public Button getAffirmativeButton() {
return affirmativeButton;
}
@Override
public Button getCancelButton() {
return cancelButton;
}
@Override
public void setHeader(String text) {
this.setText(text);
}
}
这很有效。谢谢你,先生。对于任何好奇的人,我都会在另一个答案中发布我的代码。 – KevMo 2010-07-02 16:36:11