/*
 * Copyright 2014-2021 Sayi
 *
 * 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 com.deepoove.poi.plugin.toc;

import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTP;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTSimpleField;

import com.deepoove.poi.XWPFTemplate;
import com.deepoove.poi.policy.RenderPolicy;
import com.deepoove.poi.template.ElementTemplate;
import com.deepoove.poi.template.run.RunTemplate;
import com.deepoove.poi.xwpf.XWPFOnOff;

/**
 * Experimental: Table of contents
 */
public class TOCRenderPolicy implements RenderPolicy {

    @Override
    public void render(ElementTemplate eleTemplate, Object data, XWPFTemplate template) {
        XWPFRun run = ((RunTemplate) eleTemplate).getRun();
        run.setText("", 0);

        XWPFParagraph tocPara = (XWPFParagraph) run.getParent();
        CTP ctP = tocPara.getCTP();

        CTSimpleField toc = ctP.addNewFldSimple();
        toc.setInstr("TOC \\o");
        toc.setDirty(XWPFOnOff.ON);
    }

}

@@ -624,16 +624,67 @@
 n.toc;%0A%0A
+import org.apache.poi.xwpf.usermodel.XWPFFieldRun;%0A
 import o
@@ -777,75 +777,8 @@
 un;%0A
-import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTP;%0A
 impo
@@ -1073,16 +1073,67 @@
 PFOnOff;
+%0Aimport com.deepoove.poi.xwpf.XWPFParagraphWrapper;
 %0A%0A/**%0A *
@@ -1495,33 +1495,130 @@
     
-CTP ctP = tocPara.getCTP(
+XWPFParagraphWrapper wrapper = new XWPFParagraphWrapper(tocPara);%0A        XWPFFieldRun fieldRun = wrapper.insertNewField(0
 );%0A%0A
@@ -1649,27 +1649,27 @@
 c = 
-ctP.addNewFldSimple
+fieldRun.getCTField
 ();%0A
@@ -1745,9 +1745,8 @@
     %7D%0A%0A%7D
-%0A

Update TOCRenderPolicy.java