WASM --enable-wasm-strip now skips lots of LO code

... resulting in a stripped-down, Writer-only build to decrease
the resulting WASM bytecode size.

It removes the following code from the build:
* All other major modules: Base, Calc, Chart, Draw, Impress and
  Math and related writerperfect filters
* The premultiply tables
* The (auto-)recovery functionality
* All accessibility (but not the accessibility document checker)
* The LanguageGuess component
* EPUB support
* The start center / BackingWindow
* The TipOfTheDay functionality
* The splash screen communication

Currently crashs with anything different then soffice --writer.
Closing the document also still crashes.

FYI: many of these features are now behind ENABLE_WASM_STRIP_*
defines, but they normally don't work on their own, globally!
That's because we started with stripping the main components.

Change-Id: Ib9c0f9452815910c0a2aceaf142ba1ad4a9cb0d7
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/126182
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

8 files changed, 69 insertions, 3 deletions

diff --git a/xmloff/source/core/xmlexp.cxx b/xmloff/source/core/xmlexp.cxx
index fc18a3de0370..e0110892a6f3 100644
--- a/xmloff/source/core/xmlexp.cxx
+++ b/xmloff/source/core/xmlexp.cxx
@@ -17,6 +17,8 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <config_wasm_strip.h>
+
 #include <memory>
 #include <sal/config.h>
 #include <sal/log.hxx>
@@ -1693,7 +1695,14 @@ XMLPageExport* SvXMLExport::CreatePageExport()
 
 SchXMLExportHelper* SvXMLExport::CreateChartExport()
 {
+// WASM_CHART change
+// TODO: With Chart extracted this cannot really happen since
+// no Chart could've been added at all
+#if !ENABLE_WASM_STRIP_CHART
     return new SchXMLExportHelper(*this, *GetAutoStylePool());
+#else
+    return nullptr;
+#endif
 }
 
 XMLFontAutoStylePool* SvXMLExport::CreateFontAutoStylePool()
diff --git a/xmloff/source/core/xmlimp.cxx b/xmloff/source/core/xmlimp.cxx
index 5b4d006211ba..d3ec1c31a3c4 100644
--- a/xmloff/source/core/xmlimp.cxx
+++ b/xmloff/source/core/xmlimp.cxx
@@ -17,6 +17,8 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <config_wasm_strip.h>
+
 #include <memory>
 #include <optional>
 
@@ -1073,7 +1075,16 @@ XMLShapeImportHelper* SvXMLImport::CreateShapeImport()
 
 SchXMLImportHelper* SvXMLImport::CreateChartImport()
 {
+// WASM_CHART change
+// TODO: Instead of importing the ChartModel an alternative may be
+// added to convert not to Chart/OLE SdrObejct, but to GraphicObject
+// with the Chart visualization. There should be a preiew available
+// in the imported chart data
+#if !ENABLE_WASM_STRIP_CHART
     return new SchXMLImportHelper();
+#else
+    return nullptr;
+#endif
 }
 
 ::xmloff::OFormLayerXMLImport* SvXMLImport::CreateFormImport()
@@ -1556,7 +1567,9 @@ void SvXMLImport::SetAutoStyles( SvXMLStylesContext *pAutoStyles )
     mxAutoStyles = pAutoStyles;
     GetTextImport()->SetAutoStyles( pAutoStyles );
     GetShapeImport()->SetAutoStylesContext( pAutoStyles );
+#if !ENABLE_WASM_STRIP_CHART
     GetChartImport()->SetAutoStylesContext( pAutoStyles );
+#endif
     GetFormImport()->setAutoStyleContext( pAutoStyles );
 }
 
diff --git a/xmloff/source/draw/shapeexport.cxx b/xmloff/source/draw/shapeexport.cxx
index d47ea15b2758..f1c23d3ed0b2 100644
--- a/xmloff/source/draw/shapeexport.cxx
+++ b/xmloff/source/draw/shapeexport.cxx
@@ -17,6 +17,8 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <config_wasm_strip.h>
+
 #include <basegfx/matrix/b2dhommatrix.hxx>
 #include <basegfx/matrix/b3dhommatrix.hxx>
 #include <basegfx/polygon/b2dpolypolygon.hxx>
@@ -1193,7 +1195,14 @@ void XMLShapeExport::ImpCalcShapeType(const uno::Reference< drawing::XShape >& x
                 OUString sCLSID;
                 if(xPropSet->getPropertyValue("CLSID") >>= sCLSID)
                 {
+#if !ENABLE_WASM_STRIP_CHART
+                    // WASM_CHART change
+                    // TODO: With Chart extracted this cannot really happen since
+                    // no Chart could've been added at all
                     if (sCLSID == mrExport.GetChartExport()->getChartCLSID() ||
+#else
+                    if(
+#endif
                         sCLSID == SvGlobalName( SO3_RPTCH_CLASSID ).GetHexName() )
                     {
                         eShapeType = XmlShapeTypeDrawChartShape;
diff --git a/xmloff/source/draw/ximpshap.cxx b/xmloff/source/draw/ximpshap.cxx
index a19a6c19d936..e4425c10f722 100644
--- a/xmloff/source/draw/ximpshap.cxx
+++ b/xmloff/source/draw/ximpshap.cxx
@@ -17,6 +17,8 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <config_wasm_strip.h>
+
 #include <cassert>
 
 #include <sal/log.hxx>
@@ -2470,7 +2472,13 @@ void SdXMLChartShapeContext::startFastElement (sal_Int32 nElement,
             uno::Reference< frame::XModel > xChartModel;
             if( aAny >>= xChartModel )
             {
+#if !ENABLE_WASM_STRIP_CHART
+                // WASM_CHART change
+                // TODO: Maybe use SdXMLGraphicObjectShapeContext completely instead
+                // or try to create as mbIsPlaceholder object adding a Chart visuailzation
+                // that should be available somehow
                 mxChartContext.set( GetImport().GetChartImport()->CreateChartContext( GetImport(), xChartModel ) );
+#endif
             }
         }
     }
diff --git a/xmloff/source/style/xmlstyle.cxx b/xmloff/source/style/xmlstyle.cxx
index 00afedf82a39..d46365008f5e 100644
--- a/xmloff/source/style/xmlstyle.cxx
+++ b/xmloff/source/style/xmlstyle.cxx
@@ -17,6 +17,8 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <config_wasm_strip.h>
+
 #include <sal/config.h>
 
 #include <com/sun/star/frame/XModel.hpp>
@@ -426,10 +428,12 @@ SvXMLStyleContext *SvXMLStylesContext::CreateStyleStyleChildContext(
         case XmlStyleFamily::TEXT_RUBY:
             pStyle = new XMLPropStyleContext( GetImport(), *this, nFamily );
             break;
+#if !ENABLE_WASM_STRIP_CHART
+        // WASM_CHART change
         case XmlStyleFamily::SCH_CHART_ID:
             pStyle = new XMLChartStyleContext( GetImport(), *this, nFamily );
             break;
-
+#endif
         case XmlStyleFamily::SD_GRAPHICS_ID:
         case XmlStyleFamily::SD_PRESENTATION_ID:
         case XmlStyleFamily::SD_POOL_ID:
@@ -565,6 +569,8 @@ rtl::Reference < SvXMLImportPropertyMapper > SvXMLStylesContext::GetImportProper
         }
         xMapper = mxShapeImpPropMapper;
         break;
+#if !ENABLE_WASM_STRIP_CHART
+    // WASM_CHART change
     case XmlStyleFamily::SCH_CHART_ID:
         if( ! mxChartImpPropMapper.is() )
         {
@@ -573,6 +579,7 @@ rtl::Reference < SvXMLImportPropertyMapper > SvXMLStylesContext::GetImportProper
         }
         xMapper = mxChartImpPropMapper;
         break;
+#endif
     case XmlStyleFamily::PAGE_MASTER:
         if( ! mxPageImpPropMapper.is() )
         {
diff --git a/xmloff/source/transform/OOo2Oasis.cxx b/xmloff/source/transform/OOo2Oasis.cxx
index 2433d1ed8d54..e6b5cff99c0b 100644
--- a/xmloff/source/transform/OOo2Oasis.cxx
+++ b/xmloff/source/transform/OOo2Oasis.cxx
@@ -17,6 +17,8 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <config_wasm_strip.h>
+
 #include <osl/diagnose.h>
 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
 #include <com/sun/star/uno/XComponentContext.hpp>
@@ -1552,14 +1554,16 @@ XMLTransformerContext *OOo2OasisTransformer::CreateUserDefinedContext(
         return new XMLControlOOoTransformerContext( *this, rQName );
     case XML_ETACTION_FORM_PROPERTY:
         return new XMLFormPropOOoTransformerContext( *this, rQName );
+#if !ENABLE_WASM_STRIP_CHART
     case XML_ETACTION_CHART:
         return new XMLChartOOoTransformerContext( *this, rQName );
+    case XML_ETACTION_CHART_PLOT_AREA:
+        return new XMLChartPlotAreaOOoTContext( *this, rQName );
+#endif
     case XML_ETACTION_TRACKED_CHANGES:
         return new XMLTrackedChangesOOoTContext_Impl( *this, rQName,
                                rAction.GetQNamePrefixFromParam1(),
                             rAction.GetQNameTokenFromParam1() );
-    case XML_ETACTION_CHART_PLOT_AREA:
-        return new XMLChartPlotAreaOOoTContext( *this, rQName );
     case XML_ETACTION_TABLE:
         return new XMLTableOOoTransformerContext_Impl( *this, rQName );
     default:
diff --git a/xmloff/source/transform/xof.component b/xmloff/source/transform/xof.component
index b7c5d3f5ebcb..5039731f5492 100644
--- a/xmloff/source/transform/xof.component
+++ b/xmloff/source/transform/xof.component
@@ -42,14 +42,17 @@
   <implementation name="com.sun.star.comp.Chart.XMLContentImporter"
     constructor="xmloff_XMLChartContentImportOOO_get_implementation">
     <service name="com.sun.star.comp.Chart.XMLContentImporter"/>
+    <optional/>
   </implementation>
   <implementation name="com.sun.star.comp.Chart.XMLImporter"
     constructor="xmloff_XMLChartImportOOO_get_implementation">
     <service name="com.sun.star.comp.Chart.XMLImporter"/>
+    <optional/>
   </implementation>
   <implementation name="com.sun.star.comp.Chart.XMLStylesImporter"
     constructor="xmloff_XMLChartStylesImportOOO_get_implementation">
     <service name="com.sun.star.comp.Chart.XMLStylesImporter"/>
+    <optional/>
   </implementation>
   <implementation name="com.sun.star.comp.Draw.XMLContentImporter"
     constructor="xmloff_XMLDrawContentImportOOO_get_implementation">
@@ -102,10 +105,12 @@
   <implementation name="com.sun.star.comp.OOo2OasisTransformer"
     constructor="xmloff_OOo2OasisTransformer_get_implementation">
     <service name="com.sun.star.comp.OOo2OasisTransformer"/>
+    <optional/>
   </implementation>
   <implementation name="com.sun.star.comp.Oasis2OOoTransformer"
     constructor="xmloff_Oasis2OOoTransformer_get_implementation">
     <service name="com.sun.star.comp.Oasis2OOoTransformer"/>
+    <optional/>
   </implementation>
   <implementation name="com.sun.star.comp.Writer.XMLAutotextEventsImporter"
     constructor="xmloff_XMLAutoTextEventImportOOO_get_implementation">
diff --git a/xmloff/source/transform/xof.component.chart b/xmloff/source/transform/xof.component.chart
new file mode 100644
index 000000000000..77713a8b7a90
--- /dev/null
+++ b/xmloff/source/transform/xof.component.chart
@@ -0,0 +1,11 @@
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+com.sun.star.comp.Chart.XMLContentImporter
+com.sun.star.comp.Chart.XMLImporter
+com.sun.star.comp.Chart.XMLStylesImporter
+com.sun.star.comp.Oasis2OOoTransformer
+com.sun.star.comp.OOo2OasisTransformer