org.web4thejob.web.panel.DefaultMediaViewPanel Maven / Gradle / Ivy

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/*
 * Copyright (c) 2012-2013 Veniamin Isaias.
 *
 * This file is part of web4thejob.
 *
 * Web4thejob is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or any later version.
 *
 * Web4thejob is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with web4thejob.  If not, see .
 */

package org.web4thejob.web.panel;

import org.springframework.context.annotation.Scope;
import org.springframework.util.StringUtils;
import org.web4thejob.command.Command;
import org.web4thejob.command.CommandEnum;
import org.web4thejob.context.ContextUtil;
import org.web4thejob.message.Message;
import org.web4thejob.message.MessageArgEnum;
import org.web4thejob.message.MessageEnum;
import org.web4thejob.message.MessageListener;
import org.web4thejob.orm.Entity;
import org.web4thejob.orm.Path;
import org.web4thejob.orm.PathMetadata;
import org.web4thejob.orm.annotation.ImageHolder;
import org.web4thejob.setting.SettingEnum;
import org.web4thejob.web.dialog.Dialog;
import org.web4thejob.web.dialog.ValueInputDialog;
import org.web4thejob.web.panel.base.AbstractMutablePanel;
import org.web4thejob.web.util.ZkUtil;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.HtmlBasedComponent;
import org.zkoss.zkplus.databind.DataBinder;
import org.zkoss.zul.Iframe;
import org.zkoss.zul.Image;

/**
 * @author Veniamin Isaias
 * @since 3.1.0
 */

@org.springframework.stereotype.Component
@Scope("prototype")
public class DefaultMediaViewPanel extends AbstractMutablePanel implements MediaViewPanel {
    // ------------------------------ FIELDS ------------------------------
    private Component comp;

// --------------------------- CONSTRUCTORS ---------------------------

    public DefaultMediaViewPanel() {
        this(MutableMode.READONLY);
    }

    public DefaultMediaViewPanel(MutableMode mutableMode) {
        super(mutableMode);
    }

    @Override
    protected void registerSettings() {
        super.registerSettings();
        registerSetting(SettingEnum.MEDIA_PROPERTY, null);
        registerSetting(SettingEnum.PANEL_STYLE, null);
    }

    @Override
    protected void afterSettingsSet() {
        super.afterSettingsSet();
        arrangeForMutableMode();
    }

    private void arrangeForMutableMode() {
        if (comp != null) {
            comp.detach();
            comp = null;
        }

        if (StringUtils.hasText(getSettingValue(SettingEnum.MEDIA_PROPERTY, ""))) {
            PathMetadata pathMetadata = ContextUtil.getMRS().getPropertyPath(getTargetType(),
                    new Path(getSettingValue(SettingEnum.MEDIA_PROPERTY, "")));
            dataBinder = new DataBinder();

            if (pathMetadata.getLastStep().isAnnotatedWith(ImageHolder.class)) {
                Image image = new Image();
                comp = image;
            } else {
                Iframe iframe = new Iframe();
                iframe.setVflex("true");
                iframe.setWidth("100%");
                iframe.setScrolling("auto");
                iframe.setAutohide(true);
                iframe.setStyle("background-color:transparent");
                comp = iframe;
            }

            ZkUtil.setParentOfChild((Component) base, comp);
            ZkUtil.addBinding(dataBinder, comp, DEFAULT_BEAN_ID, pathMetadata.getPath());
            ((org.zkoss.zul.Panel) base).setBorder(true);
            ((org.zkoss.zul.Panel) base).getPanelchildren().setStyle("overflow: auto;");
            comp.setAttribute(ATTRIB_PATH_META, pathMetadata);

            if (comp instanceof HtmlBasedComponent && StringUtils.hasText(getSettingValue(SettingEnum.PANEL_STYLE,
                    ""))) {
                StringBuilder sb = new StringBuilder();
                if (StringUtils.hasText(((HtmlBasedComponent) comp).getStyle())) {
                    sb.append(((HtmlBasedComponent) comp).getStyle());
                    if (!sb.toString().endsWith(";")) {
                        sb.append(";");
                    }
                }
                sb.append(getSettingValue(SettingEnum.PANEL_STYLE, ""));
                ((HtmlBasedComponent) comp).setStyle(sb.toString());
            }
        }
    }

    @Override
    protected void arrangeForTargetType() {
        super.arrangeForTargetType();
        arrangeForMutableMode();
    }


    @Override
    protected Class getMutableType() {
        return MediaViewPanel.class;
    }

    @Override
    protected void processValidCommand(Command command) {
        if (command.getId().equals(CommandEnum.UPDATE)) {
            if (hasTargetEntity()) {
                PathMetadata pathMetadata = ContextUtil.getMRS().getPropertyPath(getTargetType(),
                        new Path(getSettingValue(SettingEnum.MEDIA_PROPERTY, "")));

                Dialog dialog = ContextUtil.getDefaultDialog(ValueInputDialog.class, pathMetadata,
                        pathMetadata.getValue(getTargetEntity()), true /* #4 */);
                dialog.show(new DialogListener());
            }
        } else if (command.getId().equals(CommandEnum.ADDNEW)) {
            if (hasTargetType()) {
                PathMetadata pathMetadata = ContextUtil.getMRS().getPropertyPath(getTargetType(),
                        new Path(getSettingValue(SettingEnum.MEDIA_PROPERTY, "")));

                Dialog dialog = ContextUtil.getDefaultDialog(ValueInputDialog.class, pathMetadata, null);
                dialog.show(new DialogListener());
            }
        } else {
            super.processValidCommand(command);
        }
    }

    private class DialogListener implements MessageListener {

        @Override
        public void processMessage(Message message) {
            if (message.getId() == MessageEnum.AFFIRMATIVE_RESPONSE && message.getSender() instanceof
                    ValueInputDialog) {

                Entity entity;
                MessageArgEnum messageArgEnum;
                if (((ValueInputDialog) message.getSender()).isEditing()) {
                    entity = getTargetEntity();
                    messageArgEnum = MessageArgEnum.ARG_NEW_ITEM;
                } else {
                    entity = prepareMutableInstance(MutableMode.INSERT);
                    messageArgEnum = MessageArgEnum.ARG_ITEM;
                }

                byte[] media = message.getArg(messageArgEnum, byte[].class);

                PathMetadata pathMetadata = ContextUtil.getMRS().getPropertyPath(getTargetType(),
                        new Path(getSettingValue(SettingEnum.MEDIA_PROPERTY, "")));
                pathMetadata.getLastStep().setValue(entity, media);

                ContextUtil.getDWS().save(entity);
                setTargetEntity(entity);
            }
        }
    }
}