package com.eas.widgets;
import com.eas.core.HasPublished;
import com.eas.core.XElement;
import com.eas.menu.HasComponentPopupMenu;
import com.eas.menu.PlatypusPopupMenu;
import com.eas.ui.HasEventsExecutor;
import com.eas.ui.HasJsFacade;
import com.eas.ui.events.AddEvent;
import com.eas.ui.events.AddHandler;
import com.eas.ui.events.EventsExecutor;
import com.eas.ui.events.HasAddHandlers;
import com.eas.ui.events.HasHideHandlers;
import com.eas.ui.events.HasRemoveHandlers;
import com.eas.ui.events.HasShowHandlers;
import com.eas.ui.events.HideEvent;
import com.eas.ui.events.HideHandler;
import com.eas.ui.events.RemoveEvent;
import com.eas.ui.events.RemoveHandler;
import com.eas.ui.events.ShowEvent;
import com.eas.ui.events.ShowHandler;
import com.eas.widgets.containers.GridPanel;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.dom.client.Style;
import com.google.gwt.event.dom.client.ContextMenuEvent;
import com.google.gwt.event.dom.client.ContextMenuHandler;
import com.google.gwt.event.logical.shared.HasResizeHandlers;
import com.google.gwt.event.logical.shared.ResizeEvent;
import com.google.gwt.event.logical.shared.ResizeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.HasEnabled;
import com.google.gwt.user.client.ui.Widget;
/**
*
* @author mg
*/
public class GridPane extends GridPanel implements HasJsFacade, HasEnabled, HasComponentPopupMenu, HasEventsExecutor, HasShowHandlers,
HasHideHandlers, HasResizeHandlers, HasAddHandlers, HasRemoveHandlers, HasChildrenPosition {
protected EventsExecutor eventsExecutor;
protected PlatypusPopupMenu menu;
protected boolean enabled = true;
protected String name;
protected JavaScriptObject published;
public GridPane() {
super(1, 1);
getElement().getStyle().setOverflow(Style.Overflow.HIDDEN);
getElement().getStyle().setPosition(Style.Position.RELATIVE);
}
public GridPane(int aRows, int aCols) {
super(aRows, aCols);
getElement().getStyle().setOverflow(Style.Overflow.HIDDEN);
getElement().getStyle().setPosition(Style.Position.RELATIVE);
}
public GridPane(int aRows, int aCols, int aVGap, int aHGap) {
this(aRows, aCols);
setHgap(aHGap);
setVgap(aVGap);
}
@Override
public HandlerRegistration addAddHandler(AddHandler handler) {
return addHandler(handler, AddEvent.getType());
}
@Override
public HandlerRegistration addRemoveHandler(RemoveHandler handler) {
return addHandler(handler, RemoveEvent.getType());
}
@Override
public HandlerRegistration addResizeHandler(ResizeHandler handler) {
return addHandler(handler, ResizeEvent.getType());
}
@Override
public void onResize() {
super.onResize();
if (isAttached()) {
ResizeEvent.fire(this, getElement().getOffsetWidth(), getElement().getOffsetHeight());
}
}
@Override
public HandlerRegistration addHideHandler(HideHandler handler) {
return addHandler(handler, HideEvent.getType());
}
@Override
public HandlerRegistration addShowHandler(ShowHandler handler) {
return addHandler(handler, ShowEvent.getType());
}
@Override
public void setVisible(boolean visible) {
boolean oldValue = isVisible();
super.setVisible(visible);
if (oldValue != visible) {
if (visible) {
ShowEvent.fire(this, this);
} else {
HideEvent.fire(this, this);
}
}
}
@Override
public EventsExecutor getEventsExecutor() {
return eventsExecutor;
}
@Override
public void setEventsExecutor(EventsExecutor aExecutor) {
eventsExecutor = aExecutor;
}
@Override
public PlatypusPopupMenu getPlatypusPopupMenu() {
return menu;
}
protected HandlerRegistration menuTriggerReg;
@Override
public void setPlatypusPopupMenu(PlatypusPopupMenu aMenu) {
if (menu != aMenu) {
if (menuTriggerReg != null)
menuTriggerReg.removeHandler();
menu = aMenu;
if (menu != null) {
menuTriggerReg = super.addDomHandler(new ContextMenuHandler() {
@Override
public void onContextMenu(ContextMenuEvent event) {
event.preventDefault();
event.stopPropagation();
menu.setPopupPosition(event.getNativeEvent().getClientX(), event.getNativeEvent().getClientY());
menu.show();
}
}, ContextMenuEvent.getType());
}
}
}
@Override
public boolean isEnabled() {
return enabled;
}
@Override
public void setEnabled(boolean aValue) {
boolean oldValue = enabled;
enabled = aValue;
if (!oldValue && enabled) {
getElement().<XElement> cast().unmask();
} else if (oldValue && !enabled) {
getElement().<XElement> cast().disabledMask();
}
}
@Override
public String getJsName() {
return name;
}
@Override
public void setJsName(String aValue) {
name = aValue;
}
@Override
public void setWidget(int row, int column, Widget widget) {
super.setWidget(row, column, widget);
AddEvent.fire(this, widget);
}
@Override
public boolean remove(Widget widget) {
boolean res = super.remove(widget);
if (res) {
RemoveEvent.fire(this, widget);
}
return res;
}
@Override
public JavaScriptObject getPublished() {
return published;
}
@Override
public void setPublished(JavaScriptObject aValue) {
if (published != aValue) {
published = aValue;
if (published != null) {
publish(this, aValue);
}
}
}
private native static void publish(HasPublished aWidget, JavaScriptObject published)/*-{
published.add = function(toAdd, aRow, aCol){
if(toAdd && toAdd.unwrap){
if(toAdd.parent == published)
throw 'A widget already added to this container';
if(arguments.length < 3)
throw 'aRow and aCol are required parameters';
aWidget.@com.eas.widgets.GridPane::setWidget(IILcom/google/gwt/user/client/ui/Widget;)(1 * aRow, 1 * aCol, toAdd.unwrap());
}
}
published.remove = function(aChild) {
if (aChild && aChild.unwrap) {
aWidget.@com.eas.widgets.GridPane::remove(Lcom/google/gwt/user/client/ui/Widget;)(aChild.unwrap());
}
};
published.child = function(aRow, aCol) {
if (arguments.length > 1) {
var widget = aWidget.@com.eas.widgets.GridPane::getWidget(II)(1 * aRow, 1 * aCol);
return !!widget ? @com.eas.core.Utils::checkPublishedComponent(Ljava/lang/Object;)(widget) : null;
}else
return null;
};
Object.defineProperty(published, "hgap", {
get : function(){
return aWidget.@com.eas.widgets.GridPane::getHgap()();
},
set : function(aValue){
aWidget.@com.eas.widgets.GridPane::setHgap(I)(aValue);
}
});
Object.defineProperty(published, "vgap", {
get : function(){
return aWidget.@com.eas.widgets.GridPane::getVgap()();
},
set : function(aValue){
aWidget.@com.eas.widgets.GridPane::setVgap(I)(aValue);
}
});
Object.defineProperty(published, "rows", {
get : function(){
return aWidget.@com.eas.widgets.GridPane::getRowCount()();
}
});
Object.defineProperty(published, "columns", {
get : function(){
return aWidget.@com.eas.widgets.GridPane::getColumnCount()();
}
});
Object.defineProperty(published, "children", {
value : function(){
var ch = [];
for(var r = 0; r < published.rows; r++){
for(var c = 0; c < published.columns; c++){
var index = published.columns * r + c;
var comp = published.child(r, c);
if(comp != null){
ch.push(comp);
}
}
}
return ch;
}
});
Object.defineProperty(published, "count", {
get : function(){
var ch = published.children;
return ch.length;
}
});
}-*/;
@Override
public int getTop(Widget aWidget) {
assert aWidget.getParent() == this : "widget should be a child of this container";
return aWidget.getElement().getParentElement().getOffsetTop();
}
@Override
public int getLeft(Widget aWidget) {
assert aWidget.getParent() == this : "widget should be a child of this container";
return aWidget.getElement().getParentElement().getOffsetLeft();
}
}