tdf#118977 support PDF documents as a clipboard format

On macOS it is possible to copy from a PDF a subset of a document,
which will be transported as a new PDF document containing the
subset.
LibreOffice didn't support PDF as a valid clipboard format and
previously it also didn't support showing PDFs inside the document,
so in such cases it copy-pasted a low resolution bitmap. The result
wasn't good.

As we are now able to display PDF documents as Graphic in LO, we
can also support this use-case. This adds support for the PDF
documents as a clipboard format in general and to the macOS
backend. This commit only adds support for Writer.

Reviewed-on: https://gerrit.libreoffice.org/71364
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
(cherry picked from commit 615202cab983f1f13407f6515aeb047e4e09f6ed)

Change-Id: Ib982b55391b390ae06974b4ad836e376dd722a4c

2 files changed, 21 insertions, 1 deletions

diff --git a/sot/source/base/exchange.cxx b/sot/source/base/exchange.cxx
index 8dbc5bfd4686..124fd6cf780a 100644
--- a/sot/source/base/exchange.cxx
+++ b/sot/source/base/exchange.cxx
@@ -204,7 +204,8 @@ namespace
             /*143 SotClipboardFormatId::MATHML*/   { "application/mathml+xml", "MathML", &::cppu::UnoType<const Sequence< sal_Int8 >>::get() },
             /*144 SotClipboardFormatId::JPEG*/ { "image/jpeg", "JPEG Bitmap", &cppu::UnoType<Sequence<sal_Int8>>::get() },
             /*145 SotClipboardFormatId::RICHTEXT*/ { "text/richtext", "Richtext Format", &cppu::UnoType<Sequence<sal_Int8>>::get() },
-            /*146 SotClipboardFormatId::STRING_TSVC*/            { "application/x-libreoffice-tsvc", "Text TSV-Calc", &cppu::UnoType<OUString>::get() }
+            /*146 SotClipboardFormatId::STRING_TSVC*/            { "application/x-libreoffice-tsvc", "Text TSV-Calc", &cppu::UnoType<OUString>::get() },
+            /*147 SotClipboardFormatId::PDF*/            { "application/pdf", "PDF Document", &cppu::UnoType<Sequence<sal_Int8>>::get() },
             };
         return &aInstance[0];
         }
diff --git a/sot/source/base/formats.cxx b/sot/source/base/formats.cxx
index 522063972782..645152083a86 100644
--- a/sot/source/base/formats.cxx
+++ b/sot/source/base/formats.cxx
@@ -18,6 +18,7 @@
  */
 
 #include <tools/solar.h>
+#include <config_features.h>
 
 #include <sot/exchange.hxx>
 #include <sot/formats.hxx>
@@ -347,6 +348,9 @@ SotAction_Impl const aEXCHG_DEST_DOC_GRAPHOBJ_Def[] =
 {
     { SotClipboardFormatId::GDIMETAFILE, EXCHG_IN_ACTION_COPY },
     { SotClipboardFormatId::DRAWING, EXCHG_IN_ACTION_COPY },
+#if HAVE_FEATURE_PDFIUM
+    { SotClipboardFormatId::PDF, EXCHG_IN_ACTION_COPY },
+#endif
     { SotClipboardFormatId::PNG, EXCHG_IN_ACTION_COPY },
     { SotClipboardFormatId::JPEG, EXCHG_IN_ACTION_COPY },
     { SotClipboardFormatId::BITMAP, EXCHG_IN_ACTION_COPY },
@@ -367,6 +371,9 @@ SotAction_Impl const aEXCHG_DEST_DOC_GRAPHOBJ_Move[] =
     { SotClipboardFormatId::DRAWING, EXCHG_OUT_ACTION_REPLACE_DRAWOBJ, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::KeepPosSize | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::SVXB, EXCHG_OUT_ACTION_REPLACE_SVXB, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::KeepPosSize | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::GDIMETAFILE, EXCHG_OUT_ACTION_REPLACE_GDIMETAFILE, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::KeepPosSize | SotExchangeActionFlags::InsertTargetUrl, 0 },
+#if HAVE_FEATURE_PDFIUM
+    { SotClipboardFormatId::PDF, EXCHG_OUT_ACTION_INSERT_GRAPH, SotExchangeActionFlags::InsertImageMap  | SotExchangeActionFlags::InsertTargetUrl, 0 },
+#endif
     { SotClipboardFormatId::PNG, EXCHG_OUT_ACTION_REPLACE_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::KeepPosSize | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::JPEG, EXCHG_OUT_ACTION_REPLACE_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::KeepPosSize | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::BITMAP, EXCHG_OUT_ACTION_REPLACE_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::KeepPosSize | SotExchangeActionFlags::InsertTargetUrl, 0 },
@@ -382,6 +389,9 @@ SotAction_Impl const aEXCHG_DEST_DOC_GRAPHOBJ_Copy[] =
     { SotClipboardFormatId::DRAWING, EXCHG_OUT_ACTION_INSERT_DRAWOBJ, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::SVXB, EXCHG_OUT_ACTION_INSERT_SVXB, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::GDIMETAFILE, EXCHG_OUT_ACTION_INSERT_GDIMETAFILE, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
+#if HAVE_FEATURE_PDFIUM
+    { SotClipboardFormatId::PDF, EXCHG_OUT_ACTION_INSERT_GRAPH, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
+#endif
     { SotClipboardFormatId::PNG, EXCHG_OUT_ACTION_INSERT_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::JPEG, EXCHG_OUT_ACTION_INSERT_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::BITMAP, EXCHG_OUT_ACTION_INSERT_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
@@ -839,6 +849,9 @@ SotAction_Impl const aEXCHG_DEST_SWDOC_FREE_AREA_Def[] =
     { SotClipboardFormatId::DRAWING, EXCHG_IN_ACTION_COPY },
     { SotClipboardFormatId::SVXB, EXCHG_IN_ACTION_COPY },
     { SotClipboardFormatId::GDIMETAFILE, EXCHG_IN_ACTION_COPY },
+#if HAVE_FEATURE_PDFIUM
+    { SotClipboardFormatId::PDF, EXCHG_IN_ACTION_COPY },
+#endif
     { SotClipboardFormatId::PNG, EXCHG_IN_ACTION_COPY },
     { SotClipboardFormatId::JPEG, EXCHG_IN_ACTION_COPY },
     { SotClipboardFormatId::BITMAP, EXCHG_IN_ACTION_COPY },
@@ -869,6 +882,9 @@ SotAction_Impl const aEXCHG_DEST_SWDOC_FREE_AREA_Move[] =
     { SotClipboardFormatId::RICHTEXT, EXCHG_IN_ACTION_COPY, SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::STRING, EXCHG_OUT_ACTION_INSERT_STRING },
     { SotClipboardFormatId::GDIMETAFILE, EXCHG_OUT_ACTION_INSERT_GDIMETAFILE, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
+#if HAVE_FEATURE_PDFIUM
+    { SotClipboardFormatId::PDF, EXCHG_OUT_ACTION_INSERT_GRAPH, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
+#endif
     { SotClipboardFormatId::PNG, EXCHG_OUT_ACTION_INSERT_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::JPEG, EXCHG_OUT_ACTION_INSERT_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::BITMAP, EXCHG_OUT_ACTION_INSERT_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
@@ -893,6 +909,9 @@ SotAction_Impl const aEXCHG_DEST_SWDOC_FREE_AREA_Copy[] =
     { SotClipboardFormatId::SD_OLE, EXCHG_OUT_ACTION_INSERT_OLE, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::EMBED_SOURCE, EXCHG_OUT_ACTION_INSERT_OLE, SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::EMBEDDED_OBJ, EXCHG_OUT_ACTION_INSERT_OLE, SotExchangeActionFlags::InsertTargetUrl, 0 },
+#if HAVE_FEATURE_PDFIUM
+    { SotClipboardFormatId::PDF, EXCHG_OUT_ACTION_INSERT_GRAPH, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
+#endif
     { SotClipboardFormatId::PNG, EXCHG_OUT_ACTION_INSERT_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::JPEG, EXCHG_OUT_ACTION_INSERT_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },
     { SotClipboardFormatId::BITMAP, EXCHG_OUT_ACTION_INSERT_BITMAP, SotExchangeActionFlags::InsertImageMap | SotExchangeActionFlags::InsertTargetUrl, 0 },