本文整理汇总了Java中com.google.gwt.event.dom.client.KeyCodes.KEY_DELETE属性的典型用法代码示例。如果您正苦于以下问题:Java KeyCodes.KEY_DELETE属性的具体用法?Java KeyCodes.KEY_DELETE怎么用?Java KeyCodes.KEY_DELETE使用的例子?那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类com.google.gwt.event.dom.client.KeyCodes
的用法示例。
在下文中一共展示了KeyCodes.KEY_DELETE属性的11个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: onKey
private void onKey(KeyEvent<?> event, int charCode, int keyCode) {
if ('0' <= charCode && charCode <= '9') {
if (event.isAnyModifierKeyDown()) {
event.preventDefault();
}
} else {
switch (keyCode) {
case KeyCodes.KEY_BACKSPACE:
case KeyCodes.KEY_LEFT:
case KeyCodes.KEY_RIGHT:
case KeyCodes.KEY_HOME:
case KeyCodes.KEY_END:
case KeyCodes.KEY_TAB:
case KeyCodes.KEY_DELETE:
break;
default:
// Allow copy and paste using ctl-c/ctrl-v,
// or whatever the platform's convention is.
if (!(event.isControlKeyDown() || event.isMetaKeyDown() || event.isAltKeyDown())) {
event.preventDefault();
}
break;
}
}
}
示例2: onKeyUp
@Override
public void onKeyUp(KeyUpEvent event) {
if (enabled && !readonly) {
switch (event.getNativeKeyCode()) {
case KeyCodes.KEY_ENTER:
case KeyCodes.KEY_TAB:
case KeyCodes.KEY_SHIFT:
case KeyCodes.KEY_CTRL:
case KeyCodes.KEY_ALT:
case KeyCodes.KEY_DOWN:
case KeyCodes.KEY_UP:
case KeyCodes.KEY_PAGEDOWN:
case KeyCodes.KEY_PAGEUP:
case KeyCodes.KEY_ESCAPE:
// NOP
break;
default:
// special case for "clear" shortcut action
if (event.isShiftKeyDown() && event.getNativeKeyCode() == KeyCodes.KEY_DELETE) {
suggestionPopup.hide();
} else {
// do not show options popup if we handle shortcut action
if (!event.isControlKeyDown()
&& !event.isAltKeyDown()) {
super.onKeyUp(event);
}
}
break;
}
}
}
示例3: keyToString
private static String keyToString(int code) {
switch (code) {
case KeyCodes.KEY_SPACE:
return "Space";
case KeyCodes.KEY_BACKSPACE:
return "Backspace";
case KeyCodes.KEY_DELETE:
return "Del";
case KeyCodes.KEY_INSERT:
return "Insert";
case KeyCodes.KEY_ENTER:
return "Enter";
case KeyCodes.KEY_ESCAPE:
return "Esc";
case KeyCodes.KEY_TAB:
return "Tab";
case KeyCodes.KEY_HOME:
return "Home";
case KeyCodes.KEY_END:
return "End";
case KeyCodes.KEY_PAGEUP:
return "PageUp";
case KeyCodes.KEY_PAGEDOWN:
return "PageDown";
case KeyCodes.KEY_LEFT:
return "\u2190";
case KeyCodes.KEY_UP:
return "\u2191";
case KeyCodes.KEY_RIGHT:
return "\u2192";
case KeyCodes.KEY_DOWN:
return "\u2193";
default:
return new Character((char) code).toString();
}
}
示例4: isAcceleratorInner
/**
* Parameterised to allow testing different browser/os permuations
* @param event
* @param isMac
* @param quirksHasOldSchoolClipboardShortcuts
*/
@VisibleForTesting
static boolean isAcceleratorInner(SignalEvent event, boolean isMac,
boolean quirksHasOldSchoolClipboardShortcuts) {
switch (event.getKeySignalType()) {
case INPUT:
// Alt on its own is a simple modifier, like shift, on OSX
boolean maybeAltKey = !isMac && event.getAltKey();
// NOTE(user): Perhaps we should create a registry in
// EditorEventSubHandler of non-metesque like command keys such as TAB.
// For now TAB is our only special case, but we may need to allow
// implementers to define arbitrary keys as accelerators.
return event.getCtrlKey() || event.getMetaKey() || event.getKeyCode() == KeyCodes.KEY_TAB
|| maybeAltKey;
case DELETE:
if (quirksHasOldSchoolClipboardShortcuts &&
event.getKeyCode() == KeyCodes.KEY_DELETE && KeyModifier.SHIFT.check(event)) {
// shift+delete on windows/linux is cut
// (shift+insert and ctrl+insert are other clipboard alternatives,
// but that's handled below).
return true;
} else {
return false;
}
case NAVIGATION:
// All navigation does not count
return false;
case NOEFFECT:
// Random special keys like ESC, F7, TAB, INS, etc count
return true;
}
throw new RuntimeException("Unknown KeySignal type");
}
示例5: onKeyUp
@Override
public void onKeyUp(KeyUpEvent event) {
if (isReadOnly() || !isEnabled()) {
return;
}
int keyCode = event.getNativeEvent().getKeyCode();
boolean processed = false;
switch (keyCode) {
case KeyCodes.KEY_LEFT:
case KeyCodes.KEY_RIGHT:
case KeyCodes.KEY_BACKSPACE:
case KeyCodes.KEY_DELETE:
case KeyCodes.KEY_TAB:
if (getText().isEmpty()) {
setValue(formatValue(min));
}
return;
case KeyCodes.KEY_UP:
if (step != 0) {
increaseValue();
processed = true;
}
break;
case KeyCodes.KEY_DOWN:
if (step != 0) {
decreaseValue();
processed = true;
}
break;
}
if (processed) {
cancelKey();
}
}
示例6: onKeyPress
@Override
public void onKeyPress(KeyPressEvent event) {
if (isReadOnly() || !isEnabled()) {
return;
}
int keyCode = event.getNativeEvent().getKeyCode();
switch (keyCode) {
case KeyCodes.KEY_LEFT:
case KeyCodes.KEY_RIGHT:
case KeyCodes.KEY_BACKSPACE:
case KeyCodes.KEY_DELETE:
case KeyCodes.KEY_TAB:
case KeyCodes.KEY_UP:
case KeyCodes.KEY_DOWN:
return;
}
int index = getCursorPos();
String previousText = getText();
String newText;
if (getSelectionLength() > 0) {
newText = previousText.substring(0, getCursorPos())
+ event.getCharCode()
+ previousText.substring(
getCursorPos() + getSelectionLength(),
previousText.length());
} else {
newText = previousText.substring(0, index) + event.getCharCode()
+ previousText.substring(index, previousText.length());
}
cancelKey();
setValue(newText, true);
}
示例7: createCurPageBox
/**
* Create a box that holds the current page.
*/
private void createCurPageBox() {
// Setup the widget
curPageBox.setWidth("3em");
curPageBox.setText("1");
curPageBox.setTextAlignment(TextBoxBase.ALIGN_RIGHT);
// Disallow non-numeric pages
KeyPressHandler handler = new KeyPressHandler() {
public void onKeyPress(KeyPressEvent event) {
char charCode = event.getCharCode();
if (charCode == KeyCodes.KEY_ENTER) {
PagingOptions.this.imageGridPanel.getImageGrid().gotoPage(getPagingBoxValue(), false);
} else if (!Character.isDigit(charCode)
&& (charCode != KeyCodes.KEY_TAB)
&& (charCode != KeyCodes.KEY_BACKSPACE)
&& (charCode != KeyCodes.KEY_DELETE)
&& (charCode != KeyCodes.KEY_ENTER)
&& (charCode != KeyCodes.KEY_HOME)
&& (charCode != KeyCodes.KEY_END)
&& (charCode != KeyCodes.KEY_LEFT) && (charCode != KeyCodes.KEY_UP)
&& (charCode != KeyCodes.KEY_RIGHT)
&& (charCode != KeyCodes.KEY_DOWN)) {
curPageBox.cancelKey();
}
}
};
// Add the handler
curPageBox.addKeyPressHandler(handler);
}
示例8: isDelKey
public static boolean isDelKey(int keycode) {
if(keycode == KeyCodes.KEY_DELETE) {
return true;
}
return false;
}
示例9: handleEvent
public void handleEvent(NativeEvent event) {
int code = event.getKeyCode();
NativeEvent e = event;
String type = event.getType();
if ("keydown".equals(type) && keyEvent == Event.ONKEYDOWN
|| "keypress".equals(type) && keyEvent == Event.ONKEYPRESS) {
} else {
return;
}
if (component != null && component.getElement() != e.getCurrentEventTarget().cast()) {
return;
}
if (preventDefault) {
event.preventDefault();
}
onKeyPress(e);
switch (code) {
case KeyCodes.KEY_ALT:
onAlt(e);
break;
case KeyCodes.KEY_BACKSPACE:
onBackspace(e);
break;
case KeyCodes.KEY_CTRL:
onControl(e);
break;
case KeyCodes.KEY_DELETE:
onDelete(e);
break;
case KeyCodes.KEY_DOWN:
onDown(e);
break;
case KeyCodes.KEY_END:
onEnd(e);
break;
case KeyCodes.KEY_ENTER:
onEnter(e);
break;
case KeyCodes.KEY_ESCAPE:
onEsc(e);
break;
case KeyCodes.KEY_HOME:
onHome(e);
break;
case KeyCodes.KEY_LEFT:
onLeft(e);
break;
case KeyCodes.KEY_PAGEDOWN:
onPageDown(e);
break;
case KeyCodes.KEY_PAGEUP:
onPageUp(e);
break;
case KeyCodes.KEY_SHIFT:
onShift(e);
break;
case KeyCodes.KEY_TAB:
onTab(e);
break;
case KeyCodes.KEY_RIGHT:
onRight(e);
break;
case KeyCodes.KEY_UP:
onUp(e);
break;
}
}
示例10: onKeyPress
@Override
public void onKeyPress(KeyPressEvent event) {
final char code = event.getCharCode();
final int nativeCode = event.getNativeEvent().getKeyCode();
switch (nativeCode) {
case KeyCodes.KEY_ALT:
case KeyCodes.KEY_BACKSPACE:
case KeyCodes.KEY_CTRL:
case KeyCodes.KEY_DELETE:
case KeyCodes.KEY_DOWN:
case KeyCodes.KEY_END:
case KeyCodes.KEY_ENTER:
case KeyCodes.KEY_ESCAPE:
case KeyCodes.KEY_HOME:
case KeyCodes.KEY_LEFT:
case KeyCodes.KEY_PAGEDOWN:
case KeyCodes.KEY_PAGEUP:
case KeyCodes.KEY_RIGHT:
case KeyCodes.KEY_SHIFT:
case KeyCodes.KEY_TAB:
case KeyCodes.KEY_UP:
// Allow these, even if one of their assigned codes is
// identical to an ASCII character we do not want to
// allow in the box.
//
// We still want to let the user move around the input box
// with their arrow keys, or to move between fields using tab.
// Invalid characters introduced will be caught through the
// server's own validation of the input data.
//
break;
default:
final TextBox box = (TextBox) event.getSource();
final String re;
if (box.getCursorPos() == 0) {
re = Account.USER_NAME_PATTERN_FIRST;
} else {
re = Account.USER_NAME_PATTERN_REST;
}
if (!String.valueOf(code).matches("^" + re + "$")) {
event.preventDefault();
event.stopPropagation();
}
}
}
示例11: getKeyCode
@Override
public int getKeyCode() {
return KeyCodes.KEY_DELETE;
}