next.i.view.widgets.XPopup.java Source code

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Here is the source code for next.i.view.widgets.XPopup.java

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/*
 * Copyright 2011 Vancouver Ywebb Consulting Ltd
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package next.i.view.widgets;

import next.i.util.FxUtil;
import next.i.util.Utils;

import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.EventTarget;
import com.google.gwt.dom.client.Node;
import com.google.gwt.dom.client.Style;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.RootLayoutPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * 
 * <p>
 * <img class='ai' src='../../../../resources/XPopup.png' />
 * </p>
 */
public class XPopup extends SimplePanel {

    private boolean isCentered = false;

    private String top;
    private String right;
    private String bottom;
    private String left;

    public XPopup() {
        setStyleName("xpopupOverlay");

        addDomHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                hide();
            }
        }, ClickEvent.getType());
    }

    @Override
    public void onBrowserEvent(Event e) {
        EventTarget target = e.getEventTarget();
        Node node = Node.as(target);

        if (Element.is(node)) {
            Element ele = Element.as(target);
            // maek sure click is invoked from overlay not inner widget
            if (ele.getClassName().contains("xpopupOverlay")) {
                super.onBrowserEvent(e);
                return;
            }
        }
    }

    public void setTop(String value) {
        top = value;
    }

    public void setRight(String value) {
        right = value;
    }

    public void setBottom(String value) {
        bottom = value;
    }

    public void setLeft(String value) {
        left = value;
    }

    public void center() {
        isCentered = true;
    }

    @Override
    protected void onLoad() {
        super.onLoad();
        if (getWidget() != null) {
            //         getWidget().addStyleName("xpopup");
            //         Style s = getWidget().getElement().getStyle();
            doPosition();
        }
    }

    @Override
    public void setWidget(Widget w) {
        super.setWidget(w);
        w.addStyleName("xpopup");
    }

    public void doPosition() {

        Style s = getWidget().getElement().getStyle();

        if (isCentered) {

            setBottom(null);
            setRight(null);
            setTop("50%");
            setLeft("50%");
            int height = getWidget().getOffsetHeight();
            int width = getWidget().getOffsetWidth();

            // XLog.info("height: " + height + ", getOffsetHeight(): " +
            // getOffsetHeight());

            int top_ = height >= getOffsetHeight() ? 0 : (height / 2);
            int left_ = width >= getOffsetWidth() ? 0 : (width / 2);

            s.setProperty("marginTop", "-" + top_ + "px");
            s.setProperty("marginLeft", "-" + left_ + "px");

        } else {

            if (top == null) {
                s.clearProperty("top");
            } else {
                s.setProperty("top", top);
            }

            if (right == null) {
                s.clearProperty("right");
            } else {
                s.setProperty("right", right);
            }

            if (bottom == null) {
                s.clearProperty("bottom");
            } else {
                s.setProperty("bottom", bottom);
            }

            if (left == null) {
                s.clearProperty("left");
            } else {
                s.setProperty("left", left);
            }

        }

    }

    public void show() {
        RootLayoutPanel.get().add(this);
        if (Utils.isAndroid()) {
            this.setVisible(true);
            this.getElement().getStyle().setOpacity(1);
        } else {
            FxUtil.fadeIn(this.getElement());
        }
    }

    public void hide() {
        if (Utils.isAndroid()) {
            removeFromParent();
        } else {
            FxUtil.fadeOut(this.getElement(), 250, new Command() {
                public void execute() {
                    // XPopup.super.hide(autoClosed);
                    // setVisible(false);
                    removeFromParent();
                }
            });
        }
    }

}