import com.google.gwt.dom.client.ButtonElement; //导入依赖的package包/类
@Override
public void setAccessKey(final char key) {
    final Element element = uiObject.getElement();
    final String accessKey = Character.toString(key);

    if (AnchorElement.is(element)) {
        AnchorElement.as(element).setAccessKey(accessKey);
    } else if (ButtonElement.is(element)) {
        ButtonElement.as(element).setAccessKey(accessKey);
    } else if (InputElement.is(element)) {
        InputElement.as(element).setAccessKey(accessKey);
    }
}
 

import com.google.gwt.dom.client.ButtonElement; //导入依赖的package包/类
private UserLoginDialogUI(){
	super( false, true, true, null);
	
	//Set the dialog's caption.
	this.setText( titlesI18N.userLoginDialogTitle() );
	
	//Set a style name so we can style it with CSS.
	this.setStyleName( CommonResourcesContainer.USER_DIALOG_STYLE_NAME );
	
       //Get a handle to the form and set its action to our jsni method
       form = FormPanel.wrap(Document.get().getElementById(LOGINFORM_ID), false);
       
       //Get the cancel button for text localization
       cancel = (ButtonElement) Document.get().getElementById(CANCELBUTTON_ID);
       cancel.setInnerText( getLeftButtonText() );
       
       //Get the submit button for text localization
       submit = (ButtonElement) Document.get().getElementById(LOGINBUTTON_ID);
       submit.setInnerText( getRightButtonText() );
       
       //Get the user login input
       userLoginInput = (InputElement) Document.get().getElementById(USERNAME_ID);
       
       //Get the user password input
       userPasswordInput = (InputElement) Document.get().getElementById(PASSWORD_ID);
       
	//Fill dialog with data
	populateDialog();
	
	//Enable the action buttons and hot key
	setLeftEnabled( true );
	setRightEnabled( true );
}
 

import com.google.gwt.dom.client.ButtonElement; //导入依赖的package包/类
/**
 * wraps elemet for button
 * 
 * @param color
 * @param element
 */
public IneButton(Color color, String text, ButtonElement element) {
    button = Button.wrap(element);
    initWidget(uiBinder.createAndBindUi(this));
    button.setText(text);
    setColor(color);
}
 

import com.google.gwt.dom.client.ButtonElement; //导入依赖的package包/类
/**
 * this method initializes the protected fields: labels and button
 */
protected void createUI() {
    ObjectDesc desc = new ObjectDesc(
        loginObjectDesc,
        new StringFDesc(email, IneFrameI18n.USERNAME()),
        new StringFDesc(pass, IneFrameI18n.PASSWORD()),
        new StringFDesc(captcha, IneFrameI18n.CAPTCHA()));
    descriptorStore.registerObjectDesc(Marker.registered, desc);
    FormRDesc fDesc = new FormRDesc(loginObjectDesc);
    fDesc.getRootNode().addChild(
        email,
        new WidgetRDesc(FWTypes.TEXTBOXBYDOMID).prop(IneFormProperties.domId, "username"));
    fDesc.getRootNode().addChild(
        pass,
        new WidgetRDesc(FWTypes.PASSWORDTEXTBOXBYDOMID)
            .prop(IneFormProperties.domId, "password"));
    fDesc.getRootNode().addChild(
        captcha,
        new WidgetRDesc(FWTypes.CAPTCHA)
            .width(100)
            .prop(CaptchaFW.PROP_RENDERING, CaptchaFW.HORIZONTAL));
    descriptorStore.addDefaultTypedDesc(Marker.registered, loginObjectDesc, fDesc);

    ineForm = formFactory.createSimple(loginObjectDesc, null);
    ineForm.renderForm();
    formContent.add(ineForm.asWidget());
    ButtonElement submitEl = (ButtonElement) Document.get().getElementById("loginSubmit");
    Element formEl = DOM.getElementById("loginform");
    loginButton = new IneButton(Color.GREEN, IneFrameI18n.LOGIN(), submitEl);

    formContent.add(loginButton);

    formPanel = (formEl == null ? new FormPanel() : FormPanel.wrap(formEl));
    formEl.getStyle().setDisplay(Display.BLOCK);
    formPanel.add(formContent);
    mainPanel.add(formPanel);
}
 

import com.google.gwt.dom.client.ButtonElement; //导入依赖的package包/类
private ButtonElement createButton(Document document, String className) {
	ButtonElement result = document.createPushButtonElement();
	result.addClassName(className);

	return result;
}
 

import com.google.gwt.dom.client.ButtonElement; //导入依赖的package包/类
private ButtonElement createChildButton(Document document, Element parent, String nameId) {
	ButtonElement result = createButton(document, nameId);
	parent.appendChild(result);

	return result;
}