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/*
 * Copyright 2004-2014 ICEsoft Technologies Canada Corp.
 *
 * 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 org.icefaces.ace.component.stackpane;


import org.icefaces.ace.renderkit.CoreRenderer;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import java.io.IOException;

import static org.icefaces.ace.util.HTML.*;


public class StackPaneRenderer extends CoreRenderer {

    public void encodeBegin(FacesContext facesContext, UIComponent uiComponent) throws IOException {
        StackPane pane = (StackPane) uiComponent;
        ResponseWriter writer = facesContext.getResponseWriter();
        boolean selected = pane.isSelected();
        encodeStackPaneBegin(pane, writer, selected);
    }

    public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) throws IOException {
        ResponseWriter writer = facesContext.getResponseWriter();
        encodeStackPaneEnd(writer);
    }

    /* ****************** PANEL STACK RENDERING ********************** */
    private void encodeStackPaneBegin(StackPane pane, ResponseWriter writer, boolean selected) throws IOException {
        String clientId = pane.getClientId();

        writer.startElement(DIV_ELEM, pane);
        writer.writeAttribute(ID_ATTR, clientId + "_wrp", null);
        if (selected) {
            writer.writeAttribute(CLASS_ATTR, StackPane.CONTENT_SELECTED, null);
        } else {
            writer.writeAttribute(CLASS_ATTR, StackPane.CONTENT_HIDDEN, null);
        }
        writer.writeAttribute("data-paneid", pane.getId(), null);

        writer.startElement(DIV_ELEM, pane);
        writer.writeAttribute(ID_ATTR, clientId, null);
        if (pane.getStyleClass() != null) {
            writer.writeAttribute(CLASS_ATTR, StackPane.CONTENT_PANE + pane.getStyleClass(), null);
        } else {
            writer.writeAttribute(CLASS_ATTR, StackPane.CONTENT_PANE, null);
        }
        if (pane.getStyle() != null) {
            writer.writeAttribute(STYLE_ATTR, pane.getStyle(), null);
        }
    }

    public void encodeStackPaneEnd(ResponseWriter writer) throws IOException {
        writer.endElement(DIV_ELEM);
        writer.endElement(DIV_ELEM);
    }

    public boolean getRendersChildren() {
        return true;
    }

    public void encodeChildren(FacesContext facesContext, UIComponent uiComponent) throws IOException {
        StackPane pane = (StackPane) uiComponent;
        if (pane.isClient() || pane.isSelected()) {
            renderChildren(facesContext, uiComponent);
        }
    }


}