com.fr.design.fun.ToolbarItemProvider

package com.fr.form.ui;

import com.fr.data.core.DataCoreXmlUtils;
import com.fr.form.event.Listener;
import com.fr.general.data.Condition;
import com.fr.js.JavaScript;
import com.fr.js.JavaScriptImpl;
import com.fr.json.JSONException;
import com.fr.json.JSONObject;
import com.fr.script.Calculator;
import com.fr.stable.core.NodeVisitor;
import com.fr.stable.web.Repository;
import com.fr.stable.xml.XMLPrintWriter;
import com.fr.stable.xml.XMLableReader;

/*
 * TODO ToolBar上面的所有Widget是有共同的默认方法(afterload)的， 任何类型的Widget也是默认的实现方法的
 * 故，希望多重继承，看了Think in java，觉得也许可以把ToolBar变成一个外部类，Email, Next那些作为ToolBar的内部类，也许可行
 */
public abstract class ToolBarButton extends Button {
    // richer:权限控制,仅使用PrivilegeCondition
    protected Condition condition;

    public ToolBarButton(String text) {
        super(text);
        this.setEnabled(true);
    }

    public ToolBarButton(String text, String iconName) {
        super(text, iconName);
        // alex:工具栏按钮默认为disabled
        this.setEnabled(true);
    }

    public String widgetName() {
        return getClass().getSimpleName();
    }

    public Condition getCondition() {
        return this.condition;
    }

    public void setCondition(Condition condition) {
        this.condition = condition;
    }

    public Listener[] createListeners(Repository repo) {
        return new Listener[]{
                new Listener(AFTERINIT, initAction(repo)),
                new Listener(EVENT_CLICK, clickScript(repo)),
                new Listener(
                        WebContentUtils.getContentPanel(repo), WebContentUtils.EVENT_STARTLOAD, new JavaScriptImpl(
                        getDisableAction()
                )
                ), new Listener(
                WebContentUtils.getContentPanel(repo), WebContentUtils.EVENT_AFTERLOAD, new JavaScriptImpl(
                onContentPanelAfterLoad(repo)
        )
        )
        };
    }

    /**
     * 返回按钮点击事件脚本
     * @param repo Repository 请求资料对象
     * @return 点击事件脚本
     * 这个函数不推荐再使用，推荐直接使用clickScript方法
     */
    @Deprecated
    protected abstract JavaScriptImpl clickAction(Repository repo);

    protected JavaScript clickScript(Repository repo){
        return clickAction(repo);
    }

    protected JavaScript initAction(Repository repo) {
        return new JavaScriptImpl("this.disable();");
    }

    /*
     * 对应于ContentPanel.afterload事件
     */
    protected String onContentPanelAfterLoad(Repository repo) {
        return getEnableAction();
    }

    @Override
    public JSONObject createJSONConfig(Repository repo, Calculator c, NodeVisitor nodeVisitor) throws JSONException {
        JSONObject jo = super.createJSONConfig(repo, c, nodeVisitor);
        jo.put("widgetName", widgetName());
        return jo;
    }

    public void readXML(XMLableReader reader) {
        super.readXML(reader);
        if (reader.isChildNode()) {
            if (Condition.XML_TAG.equals(reader.getTagName())) {
                ToolBarButton.this.condition = DataCoreXmlUtils.readCondition(reader);
            }
        }
    }

    public void writeXML(XMLPrintWriter writer) {
        super.writeXML(writer);
        if (condition != null) {
            DataCoreXmlUtils.writeXMLCondition(writer, condition);
        }
    }

    public boolean equals(Object obj) {
        if (obj == null || !(obj instanceof ToolBarButton)) {
            return false;
        }
        return super.equals(obj);
    }
}