#62037 - SlideNames should not be null but have a default as if accessed by VBA

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1831745 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/sl/usermodel/Slide.java

      * @since POI 4.0.0
      */
     MasterSheet getSlideLayout();
+
+    /**
+     * @return the slide name, defaults to "Slide[slideNumber]"
+     *
+     * @since POI 4.0.0
+     */
+    String getSlideName();
 }

src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFSlide.java

     public boolean isHidden() {
         CTSlide sld = getXmlObject();
         return sld.isSetShow() && !sld.getShow();
-    }    
+    }
+
+    @Override
+    public String getSlideName() {
+        final CTCommonSlideData cSld = getXmlObject().getCSld();
+        return cSld.isSetName() ? cSld.getName() : "Slide"+getSlideNumber();
+    }
 }

src/scratchpad/src/org/apache/poi/hslf/usermodel/HSLFSlide.java

 import org.apache.poi.ddf.EscherSpRecord;
 import org.apache.poi.hslf.exceptions.HSLFException;
 import org.apache.poi.hslf.model.HeadersFooters;
+import org.apache.poi.hslf.record.CString;
 import org.apache.poi.hslf.record.ColorSchemeAtom;
 import org.apache.poi.hslf.record.Comment2000;
 import org.apache.poi.hslf.record.EscherTextboxWrapper;
 		return null;
 	}
 
-	// Simple Accesser methods follow
+    @Override
+	public String getSlideName() {
+        final CString name = (CString)getSlideRecord().findFirstOfType(RecordTypes.CString.typeID);
+        return name != null ? name.getText() : "Slide"+getSlideNumber();
+    }
+
 
 	/**
 	 * Returns an array of all the TextRuns found

src/testcases/org/apache/poi/sl/usermodel/BaseTestSlideShow.java

     }
 
     @Test
-    public void shapeName() throws IOException {
+    public void shapeAndSlideName() throws IOException {
         final String file = "SampleShow.ppt"+(getClass().getSimpleName().contains("XML")?"x":"");
-        try (final InputStream is = slTests.openResourceAsStream(file)) {
-            try (final SlideShow<? extends Shape, ?> ppt = SlideShowFactory.create(is)) {
-                final List<? extends Shape> shapes1 = ppt.getSlides().get(0).getShapes();
-                assertEquals("The Title", shapes1.get(0).getShapeName());
-                assertEquals("Another Subtitle", shapes1.get(1).getShapeName());
-                final List<? extends Shape> shapes2 = ppt.getSlides().get(1).getShapes();
-                assertEquals("Title 1", shapes2.get(0).getShapeName());
-                assertEquals("Content Placeholder 2", shapes2.get(1).getShapeName());
+        try (final InputStream is = slTests.openResourceAsStream(file);
+             final SlideShow<? extends Shape, ?> ppt = SlideShowFactory.create(is)) {
+            final List<? extends Shape> shapes1 = ppt.getSlides().get(0).getShapes();
+            assertEquals("The Title", shapes1.get(0).getShapeName());
+            assertEquals("Another Subtitle", shapes1.get(1).getShapeName());
+            final List<? extends Shape> shapes2 = ppt.getSlides().get(1).getShapes();
+            assertEquals("Title 1", shapes2.get(0).getShapeName());
+            assertEquals("Content Placeholder 2", shapes2.get(1).getShapeName());
+
+            for (final Slide<?,?> slide : ppt.getSlides()) {
+                final String expected = slide.getSlideNumber()==1 ? "FirstSlide" : "Slide2";
+                assertEquals(expected, slide.getSlideName());
             }
         }
     }