public boolean hasChildComponent(Widget component) {
if (popup.getWidget() != null) {
return popup.getWidget() == component;
} else {
return false;
}
}
/**
* Calculate extra space taken by the popup decorations
*
* @return
*/
protected Size calculatePopupExtra() {
Element pe = popup.getElement();
Element ipe = popup.getContainerElement();
// border + padding
int width = Util.getRequiredWidth(pe) - Util.getRequiredWidth(ipe);
int height = Util.getRequiredHeight(pe) - Util.getRequiredHeight(ipe);
return new Size(width, height);
}
/** Called whenever an update is received from the server */
@Override
public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
super.updateFromUIDL(uidl, client);
if (client.updateComponent(this, uidl, false)) {
hidePopup();
return;
}
addStyleName(CLASSNAME);
position = uidl.getStringAttribute("position");
xOffset = uidl.getIntAttribute("xoffset");
yOffset = uidl.getIntAttribute("yoffset");
popupVisible = uidl.getBooleanVariable("popupVisible");
if (popupVisible) {
if (uidl.hasAttribute("popupPositionPaintable")) {
popupPositionPaintable = uidl.getPaintableAttribute("popupPositionPaintable", client);
} else {
popupPositionPaintable = null;
}
if (uidl.hasAttribute("style")) {
final String[] styles = uidl.getStringAttribute("style").split(" ");
final StringBuffer styleBuf = new StringBuffer();
final String primaryName = popup.getStylePrimaryName();
styleBuf.append(primaryName);
styleBuf.append(" ");
styleBuf.append(VPopupView.CLASSNAME + "-popup");
for (int i = 0; i < styles.length; i++) {
styleBuf.append(" ");
styleBuf.append(primaryName);
styleBuf.append("-");
styleBuf.append(styles[i]);
}
popup.setStyleName(styleBuf.toString());
} else {
popup.setStyleName(popup.getStylePrimaryName() + " " + VPopupView.CLASSNAME + "-popup");
}
UIDL popupUIDL = uidl.getChildUIDL(0);
popup.setVisible(false);
popup.show();
popup.updateFromUIDL(popupUIDL);
showPopup();
} else {
hidePopup();
}
}
public void updateCaption(Paintable component, UIDL uidl) {
if (VCaption.isNeeded(uidl)) {
if (popup.getCaptionWrapper() != null) {
popup.getCaptionWrapper().updateCaption(uidl);
} else {
VCaptionWrapper captionWrapper = new VCaptionWrapper(component, client);
popup.setWidget(captionWrapper);
captionWrapper.updateCaption(uidl);
}
} else {
if (popup.getCaptionWrapper() != null) {
popup.setWidget((Widget) popup.getCaptionWrapper().getPaintable());
}
}
}
public boolean requestLayout(Set<Paintable> children) {
popup.updateShadowSizeAndPosition();
return true;
}
public void replaceChildComponent(Widget oldComponent, Widget newComponent) {
if (!hasChildComponent(oldComponent)) {
throw new IllegalArgumentException();
}
popup.setWidget(newComponent);
}
private void hidePopup() {
popup.setVisible(false);
popup.hide();
}
private void showPopup() {
if (position.equals("auto")) {
int extra = 20;
int left = getPopupPositionWidget().getAbsoluteLeft();
int top =
getPopupPositionWidget().getAbsoluteTop() + getPopupPositionWidget().getOffsetHeight();
int browserWindowWidth = Window.getClientWidth() + Window.getScrollLeft();
int browserWindowHeight = Window.getClientHeight() + Window.getScrollTop();
if (left + popup.getOffsetWidth() > browserWindowWidth - extra) {
left =
getPopupPositionWidget().getAbsoluteLeft()
- (popup.getOffsetWidth() - getPopupPositionWidget().getOffsetWidth());
}
if (top + popup.getOffsetHeight() > browserWindowHeight - extra) {
top = getPopupPositionWidget().getAbsoluteTop() - popup.getOffsetHeight() - 2;
}
left = left + xOffset;
if (left < 0) {
left = 0;
}
popup.setPopupPosition(left, top + yOffset);
popup.setVisible(true);
} else if (position.equals("fixed")) {
int extra = 20;
int left = getPopupPositionWidget().getAbsoluteLeft();
int top =
getPopupPositionWidget().getAbsoluteTop()
+ getPopupPositionWidget().getOffsetHeight()
- Window.getScrollTop();
int browserWindowWidth = Window.getClientWidth() + Window.getScrollLeft();
int clientHeight = Window.getClientHeight();
if (left + popup.getOffsetWidth() > browserWindowWidth - extra) {
left =
getPopupPositionWidget().getAbsoluteLeft()
- (popup.getOffsetWidth() - getPopupPositionWidget().getOffsetWidth());
}
if (top + popup.getOffsetHeight() > clientHeight - extra) {
top =
(getPopupPositionWidget().getAbsoluteTop() - Window.getScrollTop())
- popup.getOffsetHeight()
- 2;
}
left = left + xOffset;
if (left < 0) {
left = 0;
}
popup.setPopupPosition(left, top + yOffset);
popup.addStyleName("fixed");
popup.setShadowStyle("fixed");
popup.setVisible(true);
}
}