From 2fb584550167b67ece79d23bf95952a0ad98e9bf Mon Sep 17 00:00:00 2001
From: amitm02 <amit.man@gmail.com>
Date: Wed, 26 Sep 2018 17:47:17 +0300
Subject: [PATCH] contextual spacing

---
 demo/demo29.ts                           | 32 ++++++++++++++++++++++++
 src/file/paragraph/formatting/spacing.ts | 13 +++++++++-
 src/file/paragraph/paragraph.ts          |  7 +++++-
 3 files changed, 50 insertions(+), 2 deletions(-)
 create mode 100644 demo/demo29.ts

diff --git a/demo/demo29.ts b/demo/demo29.ts
new file mode 100644
index 0000000000..0650aac09c
--- /dev/null
+++ b/demo/demo29.ts
@@ -0,0 +1,32 @@
+import * as fs from "fs";
+import { Document, Indent, Numbering, Packer, Paragraph } from "../build";
+
+const doc = new Document();
+
+const numbering = new Numbering();
+
+const abstractNum = numbering.createAbstractNumbering();
+abstractNum.createLevel(0, "upperRoman", "%1", "start").addParagraphProperty(new Indent({ left: 720, hanging: 260 }));
+
+const concrete = numbering.createConcreteNumbering(abstractNum);
+
+const item1 = new Paragraph("line with contextual spacing");
+const item2 = new Paragraph("line with contextual spacing");
+const item3 = new Paragraph("line without contextual spacing");
+const item4 = new Paragraph("line without contextual spacing");
+
+item1.setNumbering(concrete, 0).spacing({before: 200}).contextualSpacing(true);
+item2.setNumbering(concrete, 0).spacing({before: 200}).contextualSpacing(true);
+item3.setNumbering(concrete, 0).spacing({before: 200}).contextualSpacing(false);
+item4.setNumbering(concrete, 0).spacing({before: 200}).contextualSpacing(false);
+
+doc.addParagraph(item1);
+doc.addParagraph(item2);
+doc.addParagraph(item3);
+doc.addParagraph(item4);
+
+const packer = new Packer();
+
+packer.toBuffer(doc).then((buffer) => {
+    fs.writeFileSync("My Document.docx", buffer);
+});
\ No newline at end of file
diff --git a/src/file/paragraph/formatting/spacing.ts b/src/file/paragraph/formatting/spacing.ts
index 292864bf53..608a3fe1ab 100644
--- a/src/file/paragraph/formatting/spacing.ts
+++ b/src/file/paragraph/formatting/spacing.ts
@@ -1,5 +1,5 @@
 // http://officeopenxml.com/WPspacing.php
-import { XmlAttributeComponent, XmlComponent } from "file/xml-components";
+import { Attributes, XmlAttributeComponent, XmlComponent } from "file/xml-components";
 
 export interface ISpacingProperties {
     after?: number;
@@ -23,3 +23,14 @@ export class Spacing extends XmlComponent {
         this.root.push(new SpacingAttributes(opts));
     }
 }
+
+export class ContextualSpacing extends XmlComponent {
+    constructor(value: boolean) {
+        super("w:contextualSpacing");
+        this.root.push(
+            new Attributes({
+                val: value === false ? 0 : 1,
+            }),
+        );
+    }
+}
diff --git a/src/file/paragraph/paragraph.ts b/src/file/paragraph/paragraph.ts
index b7930970b5..8fdfbe2fff 100644
--- a/src/file/paragraph/paragraph.ts
+++ b/src/file/paragraph/paragraph.ts
@@ -10,7 +10,7 @@ import { Border, ThematicBreak } from "./formatting/border";
 import { IIndentAttributesProperties, Indent } from "./formatting/indent";
 import { KeepLines, KeepNext } from "./formatting/keep";
 import { PageBreak, PageBreakBefore } from "./formatting/page-break";
-import { ISpacingProperties, Spacing } from "./formatting/spacing";
+import { ContextualSpacing, ISpacingProperties, Spacing } from "./formatting/spacing";
 import { Style } from "./formatting/style";
 import { CenterTabStop, LeaderType, LeftTabStop, MaxRightTabStop, RightTabStop } from "./formatting/tab-stop";
 import { NumberProperties } from "./formatting/unordered-list";
@@ -211,6 +211,11 @@ export class Paragraph extends XmlComponent {
         return this;
     }
 
+    public contextualSpacing(value: boolean): Paragraph {
+        this.properties.push(new ContextualSpacing(value));
+        return this;
+    }
+
     public keepNext(): Paragraph {
         this.properties.push(new KeepNext());
         return this;