com.eas.widgets.containers.AnchorsPanel.java Source code

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Here is the source code for com.eas.widgets.containers.AnchorsPanel.java

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package com.eas.widgets.containers;

import com.eas.core.XElement;
import com.eas.ui.CommonResources;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Style;
import com.google.gwt.user.client.ui.LayoutPanel;
import com.google.gwt.user.client.ui.RequiresResize;
import com.google.gwt.user.client.ui.Widget;

/**
 * 
 * @author mg
 */
public class AnchorsPanel extends LayoutPanel {

    public AnchorsPanel() {
        super();
        getElement().<XElement>cast().addResizingTransitionEnd(this);
    }

    public void ajustDisplay(Widget child) {
        if (child.getParent() == this) {
            Element el = getWidgetContainerElement(child);
            boolean visible = !child.getElement().hasAttribute("aria-hidden");
            if (visible) {
                el.getStyle().clearDisplay();
                if (child instanceof RequiresResize) {
                    ((RequiresResize) child).onResize();
                }
            } else {
                el.getStyle().setDisplay(Style.Display.NONE);
            }
        }
    }

    @Override
    public void insert(Widget aChild, int beforeIndex) {
        super.insert(aChild, beforeIndex);
        Element wce = getWidgetContainerElement(aChild);
        wce.getStyle().clearOverflow();
        aChild.getElement().getStyle().clearRight();
        aChild.getElement().getStyle().clearBottom();
        aChild.getElement().getStyle().setWidth(100, Style.Unit.PCT);
        aChild.getElement().getStyle().setHeight(100, Style.Unit.PCT);
        CommonResources.INSTANCE.commons().ensureInjected();
        aChild.getElement().addClassName(CommonResources.INSTANCE.commons().borderSized());
        ajustDisplay(aChild);
    }

    @Override
    public void onResize() {
        // Crazy GWT layout system clears display property of childrens' styles.
        for (int i = 0; i < getWidgetCount(); i++) {
            Widget child = getWidget(i);
            ajustDisplay(child);
        }
        super.onResize();
    }

    @Override
    protected void onAttach() {
        super.onAttach();
        forceLayout();
    }

}