include/svtools/htmlkywd.hxx        |    1 +
 include/svtools/htmltokn.h          |    1 +
 sc/qa/filter/html/data/formula.html |    7 +++++++
 sc/qa/filter/html/html.cxx          |   25 +++++++++++++++++++++++++
 sc/source/filter/html/htmlpars.cxx  |   14 ++++++++++++++
 sc/source/filter/inc/eeparser.hxx   |    2 ++
 sc/source/filter/rtf/eeimpars.cxx   |    5 +++++
 svtools/source/svhtml/htmlkywd.cxx  |    1 +
 8 files changed, 56 insertions(+)

New commits:
commit 0e6c93253c4ec5ef2e9c72a12c0331ff5a5e8051
Author:     Miklos Vajna <[email protected]>
AuthorDate: Mon Feb 12 08:16:20 2024 +0100
Commit:     Xisco Fauli <[email protected]>
CommitDate: Mon Feb 12 17:20:16 2024 +0100

    tdf#159483 sc HTML paste: handle data-sheets-formula attribute
    
    When a formula cell gets copied from google docs, the value of the <td>
    element only contains the formula result. This means once value cells
    and formula cells gets copied together, the pasted formula cell won't
    updated anymore when the input values change.
    
    Turns out there is a data-sheets-formula attribute on <td> that contains
    the formula, it seems it uses the R1C1 format.
    
    Fix the problem by extending ScHTMLLayoutParser::TableDataOn() to parse
    this attribute and set a formula on the target cell (rather than a
    value) if the formula is available.
    
    This required also extending ScEEImport a bit, since the HTML paste
    builds on top of the RTF one in Calc.
    
    Change-Id: I720df96ce74a5e865b7329d06f3b719551f31b96
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/163234
    Reviewed-by: Miklos Vajna <[email protected]>
    Tested-by: Jenkins
    Signed-off-by: Xisco Fauli <[email protected]>
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/163246

diff --git a/include/svtools/htmlkywd.hxx b/include/svtools/htmlkywd.hxx
index 80e47b100187..36e853960feb 100644
--- a/include/svtools/htmlkywd.hxx
+++ b/include/svtools/htmlkywd.hxx
@@ -448,6 +448,7 @@
 #define OOO_STRING_SVTOOLS_HTML_O_DSval "data-sheets-value"
 #define OOO_STRING_SVTOOLS_HTML_O_SDnum "sdnum"
 #define OOO_STRING_SVTOOLS_HTML_O_DSnum "data-sheets-numberformat"
+#define OOO_STRING_SVTOOLS_HTML_O_DSformula "data-sheets-formula"
 #define OOO_STRING_SVTOOLS_HTML_O_sdlibrary "sdlibrary"
 #define OOO_STRING_SVTOOLS_HTML_O_sdmodule "sdmodule"
 #define OOO_STRING_SVTOOLS_HTML_O_sdevent "sdevent-"
diff --git a/include/svtools/htmltokn.h b/include/svtools/htmltokn.h
index 21fcec800a9a..89d8ee868535 100644
--- a/include/svtools/htmltokn.h
+++ b/include/svtools/htmltokn.h
@@ -347,6 +347,7 @@ STRING_START        = BOOL_END,
     DSVAL,
     SDNUM, // StarDiv NumberFormat
     DSNUM,
+    DSFORMULA,
     SDLIBRARY,
     SDMODULE,
 STRING_END,
diff --git a/sc/qa/filter/html/data/formula.html 
b/sc/qa/filter/html/data/formula.html
new file mode 100644
index 000000000000..f6c9245d4c02
--- /dev/null
+++ b/sc/qa/filter/html/data/formula.html
@@ -0,0 +1,7 @@
+<table>
+  <tr>
+    <td data-sheets-value="{&quot;1&quot;:3,&quot;3&quot;:1}">1</td>
+    <td data-sheets-value="{&quot;1&quot;:3,&quot;3&quot;:2}">2</td>
+    <td data-sheets-value="{&quot;1&quot;:3,&quot;3&quot;:3}" 
data-sheets-formula="=SUM(R[0]C[-2]:R[0]C[-1])">3</td>
+  </tr>
+</table>
diff --git a/sc/qa/filter/html/html.cxx b/sc/qa/filter/html/html.cxx
index b66976396f99..83e35d9f8281 100644
--- a/sc/qa/filter/html/html.cxx
+++ b/sc/qa/filter/html/html.cxx
@@ -143,6 +143,31 @@ CPPUNIT_TEST_FIXTURE(Test, testPasteTdAsFormattedNumber)
     CPPUNIT_ASSERT_EQUAL(static_cast<double>(1000),
                          pDoc->GetValue(/*col=*/0, /*row=*/0, /*tab=*/0));
 }
+
+CPPUNIT_TEST_FIXTURE(Test, testPasteTdAsFormula)
+{
+    // Given an empty document:
+    createScDoc();
+
+    // When pasting HTML with cells containing a formula:
+    ScDocument* pDoc = getScDoc();
+    ScAddress aCellPos(/*nColP=*/0, /*nRowP=*/0, /*nTabP=*/0);
+    ScImportExport aImporter(*pDoc, aCellPos);
+    SvFileStream aFile(createFileURL(u"formula.html"), StreamMode::READ);
+    SvMemoryStream aMemory;
+    aMemory.WriteStream(aFile);
+    aMemory.Seek(0);
+    CPPUNIT_ASSERT(aImporter.ImportStream(aMemory, OUString(), 
SotClipboardFormatId::HTML));
+
+    // Then make sure C1 is a sum and it evaluates to 3:
+    // Without the accompanying fix in place, this test would have failed with:
+    // - Expected: =SUM(A1:B1)
+    // - Actual  :
+    // i.e. only the formula result was imported, not the formula.
+    CPPUNIT_ASSERT_EQUAL(OUString("=SUM(A1:B1)"),
+                         pDoc->GetFormula(/*col=*/2, /*row=*/0, /*tab=*/0));
+    CPPUNIT_ASSERT_EQUAL(static_cast<double>(3), pDoc->GetValue(/*col=*/2, 
/*row=*/0, /*tab=*/0));
+}
 }
 
 CPPUNIT_PLUGIN_IMPLEMENT();
diff --git a/sc/source/filter/html/htmlpars.cxx 
b/sc/source/filter/html/htmlpars.cxx
index 14cd34b985aa..917a690c7090 100644
--- a/sc/source/filter/html/htmlpars.cxx
+++ b/sc/source/filter/html/htmlpars.cxx
@@ -152,6 +152,14 @@ void ParseDataSheetsNumberformat(const OUString& 
rDataSheetsValue, std::optional
         }
     }
 }
+
+/// data-sheets-formula from google sheets, grammar is R1C1 reference style.
+void ParseDataSheetsFormula(const OUString& rDataSheetsFormula, 
std::optional<OUString>& rVal,
+                            std::optional<formula::FormulaGrammar::Grammar>& 
rGrammar)
+{
+    rVal = rDataSheetsFormula;
+    rGrammar = formula::FormulaGrammar::GRAM_ENGLISH_XL_R1C1;
+}
 }
 
 ScHTMLStyles::ScHTMLStyles() : maEmpty() {}
@@ -1071,6 +1079,12 @@ void ScHTMLLayoutParser::TableDataOn( HtmlImportInfo* 
pInfo )
                 ParseDataSheetsNumberformat(rOption.GetString(), 
mxActEntry->pNumStr);
             }
             break;
+            case HtmlOptionId::DSFORMULA:
+            {
+                ParseDataSheetsFormula(rOption.GetString(), 
mxActEntry->moFormulaStr,
+                                       mxActEntry->moFormulaGrammar);
+            }
+            break;
             default: break;
         }
     }
diff --git a/sc/source/filter/inc/eeparser.hxx 
b/sc/source/filter/inc/eeparser.hxx
index ebc383e32dac..e890a80dd111 100644
--- a/sc/source/filter/inc/eeparser.hxx
+++ b/sc/source/filter/inc/eeparser.hxx
@@ -56,6 +56,8 @@ struct ScEEParseEntry
     ESelection          aSel;           // Selection in EditEngine
     std::optional<OUString>
                         pValStr;        // HTML possibly SDVAL string
+    std::optional<OUString> moFormulaStr;
+    std::optional<formula::FormulaGrammar::Grammar> moFormulaGrammar;
     std::optional<OUString>
                         pNumStr;        // HTML possibly SDNUM string
     std::optional<OUString>
diff --git a/sc/source/filter/rtf/eeimpars.cxx 
b/sc/source/filter/rtf/eeimpars.cxx
index 70562308120f..57d81598bfd9 100644
--- a/sc/source/filter/rtf/eeimpars.cxx
+++ b/sc/source/filter/rtf/eeimpars.cxx
@@ -339,6 +339,11 @@ void ScEEImport::WriteToDocument( bool bSizeColsRows, 
double nOutputFactor, SvNu
 
                 if (!aValStr.isEmpty())
                     mpDoc->SetValue( nCol, nRow, nTab, fVal );
+                else if (pE->moFormulaStr && pE->moFormulaGrammar)
+                {
+                    mpDoc->SetFormula(ScAddress(nCol, nRow, nTab), 
*pE->moFormulaStr,
+                                      *pE->moFormulaGrammar);
+                }
                 else if ( !pE->aSel.HasRange() )
                 {
                     // maybe ALT text of IMG or similar
diff --git a/svtools/source/svhtml/htmlkywd.cxx 
b/svtools/source/svhtml/htmlkywd.cxx
index a3dff93f9b4f..434e1cb9e488 100644
--- a/svtools/source/svhtml/htmlkywd.cxx
+++ b/svtools/source/svhtml/htmlkywd.cxx
@@ -527,6 +527,7 @@ static HTML_OptionEntry aHTMLOptionTab[] = {
     {std::u16string_view(u"" OOO_STRING_SVTOOLS_HTML_O_DSval),     
HtmlOptionId::DSVAL},
     {std::u16string_view(u"" OOO_STRING_SVTOOLS_HTML_O_SDnum),     
HtmlOptionId::SDNUM}, // StarDiv NumberFormat
     {std::u16string_view(u"" OOO_STRING_SVTOOLS_HTML_O_DSnum),     
HtmlOptionId::DSNUM},
+    {std::u16string_view(u"" OOO_STRING_SVTOOLS_HTML_O_DSformula), 
HtmlOptionId::DSFORMULA},
     {std::u16string_view(u"" OOO_STRING_SVTOOLS_HTML_O_sdlibrary), 
HtmlOptionId::SDLIBRARY},
     {std::u16string_view(u"" OOO_STRING_SVTOOLS_HTML_O_sdmodule),  
HtmlOptionId::SDMODULE},
 

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