Add import for new starmath mathml elements

Change-Id: Ie867cda8780747e715d642a9b007faafb33b4d99
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/120474
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

2 files changed, 157 insertions, 1 deletions

diff --git a/starmath/inc/mathml/element.hxx b/starmath/inc/mathml/element.hxx
index 513b5d84b7ea..d51f5b07e01c 100644
--- a/starmath/inc/mathml/element.hxx
+++ b/starmath/inc/mathml/element.hxx
@@ -34,7 +34,7 @@ public:
     };
     /* Mathml stuff */
 
-protected:
+public:
     SmMlElement(SmMlElementType aElementType)
         : m_aElementType(aElementType)
         , m_aText(u"\u00B6")
@@ -174,6 +174,14 @@ public: // attributes
       */
     void setAttribute(const SmMlAttribute* aAttribute);
 
+    /**
+      * Set's a given attribute.
+      * If no available does nothing.
+      * @param nAttributePos
+      * @return given attribute.
+      */
+    void setAttribute(const SmMlAttribute& aAttribute) { setAttribute(&aAttribute); }
+
     /** Checks if an attribute has been manually set
     * @param aElementType
     */
diff --git a/starmath/inc/mathml/import.hxx b/starmath/inc/mathml/import.hxx
new file mode 100644
index 000000000000..916f929440a8
--- /dev/null
+++ b/starmath/inc/mathml/import.hxx
@@ -0,0 +1,148 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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/.
+ */
+
+#pragma once
+
+// Our mathml
+#include "element.hxx"
+
+// XML tools
+#include <vcl/errcode.hxx>
+#include <xmloff/xmlimp.hxx>
+
+// Extras
+#include <com/sun/star/beans/PropertyAttribute.hpp>
+
+class SfxMedium;
+class SmDocShell;
+class SmMLImport;
+
+class SmMLImportWrapper
+{
+    css::uno::Reference<css::frame::XModel> m_xModel;
+    SmDocShell* m_pDocShell;
+    SmMLImport* m_pMlImport;
+
+private:
+    // Use customized entities
+
+public:
+    /** Get the element tree when parsed from text
+    */
+    SmMlElement* getElementTree();
+
+public:
+    /** Constructor
+     */
+    explicit SmMLImportWrapper(css::uno::Reference<css::frame::XModel> const& rRef)
+        : m_xModel(rRef)
+        , m_pDocShell(nullptr)
+        , m_pMlImport(nullptr)
+    {
+    }
+
+    /** Imports the mathml
+    */
+    ErrCode Import(SfxMedium& rMedium);
+
+    /** Imports the mathml
+    */
+    ErrCode Import(std::u16string_view aSource);
+
+    /** read a component from input stream
+     */
+    ErrCode ReadThroughComponent(const css::uno::Reference<css::io::XInputStream>& xInputStream,
+                                 const css::uno::Reference<css::lang::XComponent>& xModelComponent,
+                                 css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                                 css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                                 const char16_t* pFilterName, bool bEncrypted);
+
+    /** read a component from storage
+     */
+    ErrCode ReadThroughComponent(const css::uno::Reference<css::embed::XStorage>& xStorage,
+                                 const css::uno::Reference<css::lang::XComponent>& xModelComponent,
+                                 const char16_t* pStreamName,
+                                 css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                                 css::uno::Reference<css::beans::XPropertySet> const& rPropSet,
+                                 const char16_t* pFilterName);
+
+    /** read a component from text
+     */
+    ErrCode ReadThroughComponent(std::u16string_view aText,
+                                 const css::uno::Reference<css::lang::XComponent>& xModelComponent,
+                                 css::uno::Reference<css::uno::XComponentContext> const& rxContext,
+                                 css::uno::Reference<css::beans::XPropertySet> const& rPropSet);
+};
+
+class SmMLImport : public SvXMLImport
+{
+private:
+    SmMlElement* m_pElementTree = new SmMlElement(SmMlElementType::NMlEmpty);
+    bool m_bSuccess;
+    size_t m_nSmSyntaxVersion;
+
+public:
+    /** Get's parsed element tree
+    */
+    SmMlElement* getElementTree() { return m_pElementTree; }
+
+    /** Checks out if parse was a success
+     */
+    bool getSuccess() { return m_bSuccess; }
+
+public:
+    /** Handles an error on the mathml structure
+     */
+    void declareMlError();
+
+public:
+    /** Constructor
+    */
+    SmMLImport(const css::uno::Reference<css::uno::XComponentContext>& rContext,
+               OUString const& implementationName, SvXMLImportFlags nImportFlags);
+
+    /** Destructor
+    */
+    virtual ~SmMLImport() noexcept override { cleanup(); };
+
+public:
+    // XUnoTunnel
+    sal_Int64 SAL_CALL getSomething(const css::uno::Sequence<sal_Int8>& rId) override;
+    static const css::uno::Sequence<sal_Int8>& getUnoTunnelId() noexcept;
+
+    /** End the document
+    */
+    void SAL_CALL endDocument() override;
+
+    /** Create a fast context
+    */
+    SvXMLImportContext* CreateFastContext(
+        sal_Int32 nElement,
+        const css::uno::Reference<css::xml::sax::XFastAttributeList>& xAttrList) override;
+
+    /** Imports view settings formula
+    */
+    virtual void
+    SetViewSettings(const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+
+    /** Imports configurations settings formula
+    */
+    virtual void SetConfigurationSettings(
+        const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+
+    /** Set syntax version
+    */
+    void SetSmSyntaxVersion(sal_uInt16 nSmSyntaxVersion) { m_nSmSyntaxVersion = nSmSyntaxVersion; }
+
+    /** Get syntax version
+    */
+    sal_uInt16 GetSmSyntaxVersion() const { return m_nSmSyntaxVersion; }
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */