/**
* Returns the window's draggable instance.
*
* @return the draggable instance
*/
public Draggable getDraggable() {
if (dragger == null && draggable) {
dragger = new Draggable(this, head);
dragger.setConstrainClient(getConstrain());
dragger.setSizeProxyToSource(false);
dragger.addDragListener(
new DragListener() {
@Override
public void dragEnd(DragEvent de) {
endDrag(de, false);
}
@Override
public void dragCancel(DragEvent de) {
endDrag(de, true);
}
@Override
public void dragMove(DragEvent de) {
moveDrag(de);
}
@Override
public void dragStart(DragEvent de) {
startDrag(de);
}
});
}
return dragger;
}
protected void startDrag(DragEvent de) {
dragging = true;
WindowManager.get().bringToFront(this);
hideShadow();
ghost = ghost();
if (eventPreview != null && ghost != null) {
eventPreview.getIgnoreList().add(ghost.dom);
}
showWindow(false);
Draggable d = de.getDraggable();
d.setProxy(ghost);
}
/**
* Restores a maximized window back to its original size and position prior to being maximized and
* also replaces the 'restore' tool button with the 'maximize' tool button.
*/
public void restore() {
if (maximized) {
el().removeStyleName("x-window-maximized");
if (maximizable) {
restoreBtn.setVisible(false);
maxBtn.setVisible(true);
}
if (restoreShadow != null && restoreShadow.booleanValue() && layer != null) {
layer.enableShadow();
restoreShadow = null;
}
if (draggable) {
dragger.setEnabled(true);
}
if (resizable) {
resizer.setEnabled(true);
}
head.addStyleName("x-window-draggable");
if (restorePos != null) {
setPosition(restorePos.x, restorePos.y);
boolean cacheSizesRestore = cacheSizes;
cacheSizes = false;
setSize(restoreSize.width, restoreSize.height);
cacheSizes = cacheSizesRestore;
}
if (container == null && restoreWindowScrolling != null) {
com.google.gwt.dom.client.Document.get()
.enableScrolling(restoreWindowScrolling.booleanValue());
restoreWindowScrolling = null;
}
maximized = false;
fireEvent(Events.Restore, new WindowEvent(this));
}
}
/**
* True to enable dragging of this Panel (defaults to false).
*
* @param draggable the draggable to state
*/
public void setDraggable(boolean draggable) {
this.draggable = draggable;
if (draggable) {
head.addStyleName("x-window-draggable");
getDraggable();
} else if (dragger != null) {
dragger.release();
dragger = null;
head.removeStyleName("x-window-draggable");
}
}
/**
* Fits the window within its current container and automatically replaces the 'maximize' tool
* button with the 'restore' tool button.
*/
public void maximize() {
if (!maximized) {
restoreSize = getSize();
restorePos = getPosition(true);
restoreShadow = getShadow();
if (container == null) {
String bodyOverflow =
com.google.gwt.dom.client.Document.get().isCSS1Compat()
? com.google.gwt.dom.client.Document.get()
.getDocumentElement()
.getStyle()
.getProperty("overflow")
: com.google.gwt.dom.client.Document.get()
.getBody()
.getStyle()
.getProperty("overflow");
if (!"hidden".equals(bodyOverflow)) {
restoreWindowScrolling = true;
}
com.google.gwt.dom.client.Document.get().enableScrolling(false);
}
maximized = true;
addStyleName("x-window-maximized");
head.removeStyleName("x-window-draggable");
if (layer != null) {
layer.disableShadow();
}
boolean cacheSizesRestore = cacheSizes;
cacheSizes = false;
fitContainer();
cacheSizes = cacheSizesRestore;
if (maximizable) {
maxBtn.setVisible(false);
restoreBtn.setVisible(true);
}
if (draggable) {
dragger.setEnabled(false);
}
if (resizable) {
resizer.setEnabled(false);
}
fireEvent(Events.Maximize, new WindowEvent(this));
} else {
fitContainer();
}
}
/**
* Hides the window.
*
* @param buttonPressed the button that was pressed or null
*/
public void hide(Button buttonPressed) {
if (hidden || !fireEvent(Events.BeforeHide, new WindowEvent(this, buttonPressed))) {
return;
}
if (dragger != null) {
dragger.cancelDrag();
}
hidden = true;
if (!maximized) {
restoreSize = getSize();
restorePos = getPosition(true);
}
if (modalPreview != null) {
modalPreview.removeHandler();
modalPreview = null;
}
onHide();
manager.unregister(this);
if (removeFromParentOnHide) {
removeFromParent();
}
if (modalPanel != null) {
ModalPanel.push(modalPanel);
modalPanel = null;
}
eventPreview.remove();
notifyHide();
if (restoreWindowScrolling != null) {
com.google.gwt.dom.client.Document.get()
.enableScrolling(restoreWindowScrolling.booleanValue());
}
fireEvent(Events.Hide, new WindowEvent(this, buttonPressed));
}
/**
* True to constrain the window to the {@link Viewport}, false to allow it to fall outside of the
* Viewport (defaults to true).
*
* @param constrain true to constrain, otherwise false
*/
public void setConstrain(boolean constrain) {
this.constrain = constrain;
if (dragger != null) {
dragger.setConstrainClient(constrain);
}
}