Java KeyCodes.KEY_ENTER屬性代碼示例

@Override
protected void onPreviewNativeEvent(NativePreviewEvent preview) {
	super.onPreviewNativeEvent(preview);

	NativeEvent evt = preview.getNativeEvent();
	if (evt.getType().equals("keydown")) {
		// Use the popup's key preview hooks to close the dialog when either
		// enter or escape is pressed.
		switch (evt.getKeyCode()) {
		case KeyCodes.KEY_ENTER:
		case KeyCodes.KEY_ESCAPE:
			hide();
			break;
		default:
			break;
		}
	}
}
 

@Override
protected void onPreviewNativeEvent(NativePreviewEvent preview) {
  super.onPreviewNativeEvent(preview);

  NativeEvent evt = preview.getNativeEvent();
  if (evt.getType()
         .equals("keydown")) {
    // Use the popup's key preview hooks to close the dialog when either
    // enter or escape is pressed.
    switch (evt.getKeyCode()) {
      case KeyCodes.KEY_ENTER:
      case KeyCodes.KEY_ESCAPE:
        hide();
        break;
    }
  }
}
 

@UiHandler("searchBox")
void searchBoxEnter(KeyDownEvent event) {
  if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
    SuggestionDisplay suggestionDisplay = searchBox.getSuggestionDisplay();

    // This should always be true unless GWT changes the type of the suggestion generated by the
    // SuggestBox. It is too complicated and nasty to switch out the SuggestBox suggestion display
    // factory, so we're left with this type safety check and broken functionality if GWT changes.
    Preconditions.checkState(suggestionDisplay instanceof DefaultSuggestionDisplay);

    // At this point this should always be true.
    if (suggestionDisplay instanceof DefaultSuggestionDisplay) {
      DefaultSuggestionDisplay suggestions = (DefaultSuggestionDisplay) suggestionDisplay;
      if (!suggestions.isSuggestionListShowing()) {
        presenter.handleSearch(searchBox.getValue());
      }
    }
  }
}
 

private void handlePanelEventDelegation(final KeyUpEvent event) {
    switch (event.getNativeKeyCode()) {
    case KeyCodes.KEY_DOWN:
        arrowKeyDown(event);
        break;
    case KeyCodes.KEY_UP:
        arrorKeyUp(event);
        break;
    case KeyCodes.KEY_ESCAPE:
        escapeKey();
        break;
    case KeyCodes.KEY_ENTER:
        enterKey();
        break;
    default:
        doAskForSuggestion();
    }
}
 

@UiHandler("projectName")
void onProjectNameChanged(KeyUpEvent event) {
  if (projectName.getValue() != null && projectName.getValue().contains(" ")) {
    String tmp = projectName.getValue();
    while (tmp.contains(" ")) {
      tmp = tmp.replaceAll(" ", "-");
    }
    projectName.setValue(tmp);
  }

  if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
    return;
  }

  delegate.projectNameChanged(projectName.getText());
}
 

@UiHandler("titleTextBox")
public void titleKeyDownHandler(KeyDownEvent event) {
    if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
        presenter.applyBookmark();
    } else if (event.getNativeKeyCode() == KeyCodes.KEY_ESCAPE) {
        presenter.discardChanges();
    }
}
 

@Override
protected void onPreviewNativeEvent(NativePreviewEvent event) {
	super.onPreviewNativeEvent(event);
	if (isEscapeToHide() && event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ESCAPE) {
		AriaStatus.getInstance().setText(ARIA.dialogClosed(getText()));
		hide();
	} if (isEnterToSubmit() && event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER) {
		event.getNativeEvent().stopPropagation();
		event.getNativeEvent().preventDefault();
    	iSubmitHandler.execute();
	}
}
 

private void addKeyShortcuts() {
	final KeyShortcutHandler keyShortcut = new KeyShortcutHandler(
			getButton(PredefinedButton.OK), KeyCodes.KEY_ENTER);

	latitudTextField.addKeyDownHandler(keyShortcut);
	longitudTextField.addKeyDownHandler(keyShortcut);
}
 

private void addKeyShortcuts() {
	KeyShortcutHandler keyShortcut = new KeyShortcutHandler(searchButton,
			KeyCodes.KEY_ENTER);

	layerNameField.addKeyDownHandler(keyShortcut);
	valueAttributeField.addKeyDownHandler(keyShortcut);
	attributeCombo.addKeyDownHandler(keyShortcut);
}
 

private void addKeyShortcuts() {
	KeyShortcutHandler keyShortcut = new KeyShortcutHandler(
			getButton(PredefinedButton.OK), KeyCodes.KEY_ENTER);

	layerName.addKeyDownHandler(keyShortcut);
	projectionName.addKeyDownHandler(keyShortcut);
	vectorFormatCombo.addKeyDownHandler(keyShortcut);
	geoDataTextArea.addKeyDownHandler(keyShortcut);
}
 

private void addKeyShortcuts() {
	KeyShortcutHandler keyShortcut = new KeyShortcutHandler(
			getButton(PredefinedButton.OK), KeyCodes.KEY_ENTER);

	vectorFormatCombo.addKeyDownHandler(keyShortcut);
	epsgCombo.addKeyDownHandler(keyShortcut);
}
 

private void handleKeyPress(char keyCode) {
  if (keyCode == KeyCodes.KEY_ENTER || keyCode == KeyCodes.KEY_TAB) {
    // Pressing <tab>, <enter> or <return> will surrender focus.
    textEdit.cancelKey();
    textEdit.setFocus(false);
  } else if (!validateKeyCode(keyCode)) {
    textEdit.cancelKey();
  }
}
 

private void handleKeyPress(char keyCode) {
  if (keyCode == KeyCodes.KEY_ENTER || keyCode == KeyCodes.KEY_TAB) {
    // Pressing <tab>, <enter> or <return> will surrender focus.
    urlField.cancelKey();
    urlField.setFocus(false);
  } else if (!validateKeyCode(keyCode)) {
    urlField.cancelKey();
  }
}
 

@Override
public void onKeyDown(KeyDownEvent event) {
    switch (event.getNativeKeyCode()) {
        case KeyCodes.KEY_LEFT: game.addEvent(Event.LEFT); break;
        case KeyCodes.KEY_RIGHT: game.addEvent(Event.RIGHT); break;
        case KeyCodes.KEY_UP: game.addEvent(Event.UP); break;
        case KeyCodes.KEY_DOWN: game.addEvent(Event.DOWN); break;
        case KeyCodes.KEY_ENTER: game.addEvent(Event.SELECT); break;
        case KeyCodes.KEY_ESCAPE: game.addEvent(Event.BACK); break;
        default: return;
    }
}
 

@Override
public void onKeyDown(KeyDownEvent event) {
	if (this.enabled && !this.readonly) {
		int keyCode = event.getNativeKeyCode();

		debug("VComboBoxMultiselect: key down: " + keyCode);

		if (this.dataReceivedHandler.isWaitingForFilteringResponse() && navigationKeyCodes.contains(keyCode)
				&& (!this.allowNewItems || keyCode != KeyCodes.KEY_ENTER)) {
			/*
			 * Keyboard navigation events should not be handled while we are
			 * waiting for a response. This avoids flickering, disappearing
			 * items, wrongly interpreted responses and more.
			 */
			debug("Ignoring " + keyCode + " because we are waiting for a filtering response");

			DOM.eventPreventDefault(DOM.eventGetCurrentEvent());
			event.stopPropagation();
			return;
		}

		if (this.suggestionPopup.isAttached()) {
			debug("Keycode " + keyCode + " target is popup");
			popupKeyDown(event);
		} else {
			debug("Keycode " + keyCode + " target is text field");
			inputFieldKeyDown(event);
		}
	}
}