lok: MSForms: Add callback for form field button.

Show and hide the button and send the button area, where
it should be displayed.

Change-Id: I5922eb9f5e544483dd4efd12e4218d2e51270632
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/93657
Tested-by: Jenkins
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>

4 files changed, 132 insertions, 2 deletions

diff --git a/sw/qa/extras/tiledrendering/data/drop_down_form_field.odt b/sw/qa/extras/tiledrendering/data/drop_down_form_field.odt
new file mode 100644
index 000000000000..7793aff4e91b
--- /dev/null
+++ b/sw/qa/extras/tiledrendering/data/drop_down_form_field.odt
diff --git a/sw/qa/extras/tiledrendering/tiledrendering.cxx b/sw/qa/extras/tiledrendering/tiledrendering.cxx
index 355ae56cc29f..efe714d74388 100644
--- a/sw/qa/extras/tiledrendering/tiledrendering.cxx
+++ b/sw/qa/extras/tiledrendering/tiledrendering.cxx
@@ -128,6 +128,7 @@ public:
     void testRedlineNotificationDuringSave();
     void testHyperlink();
     void testFieldmark();
+    void testDropDownFormFieldButton();
 
     CPPUNIT_TEST_SUITE(SwTiledRenderingTest);
     CPPUNIT_TEST(testRegisterCallback);
@@ -194,6 +195,7 @@ public:
     CPPUNIT_TEST(testRedlineNotificationDuringSave);
     CPPUNIT_TEST(testHyperlink);
     CPPUNIT_TEST(testFieldmark);
+    CPPUNIT_TEST(testDropDownFormFieldButton);
     CPPUNIT_TEST_SUITE_END();
 
 private:
@@ -214,6 +216,7 @@ private:
     int m_nTrackedChangeIndex;
     OString m_sHyperlinkText;
     OString m_sHyperlinkLink;
+    OString m_aFormFieldButton;
 };
 
 SwTiledRenderingTest::SwTiledRenderingTest()
@@ -365,6 +368,11 @@ void SwTiledRenderingTest::callbackImpl(int nType, const char* pPayload)
         }
     }
     break;
+    case LOK_CALLBACK_FORM_FIELD_BUTTON:
+    {
+        m_aFormFieldButton = OString(pPayload);
+    }
+    break;
     }
 }
 
@@ -2537,6 +2545,79 @@ void SwTiledRenderingTest::testFieldmark()
     createDoc("fieldmark.docx");
 }
 
+void SwTiledRenderingTest::testDropDownFormFieldButton()
+{
+    SwXTextDocument* pXTextDocument = createDoc("drop_down_form_field.odt");
+    pXTextDocument->setClientVisibleArea(tools::Rectangle(0, 0, 10000, 4000));
+
+    SwWrtShell* pWrtShell = pXTextDocument->GetDocShell()->GetWrtShell();
+    pWrtShell->GetSfxViewShell()->registerLibreOfficeKitViewCallback(&SwTiledRenderingTest::callback, this);
+
+    // Move the cursor to trigger displaying of the field button.
+    pWrtShell->Right(CRSR_SKIP_CHARS, /*bSelect=*/false, 1, /*bBasicCall=*/false);
+
+    CPPUNIT_ASSERT(!m_aFormFieldButton.isEmpty());
+
+    // First we have a button with an empty text area.
+    {
+        std::stringstream aStream(m_aFormFieldButton.getStr());
+        boost::property_tree::ptree aTree;
+        boost::property_tree::read_json(aStream, aTree);
+
+        OString sAction = aTree.get_child("action").get_value<std::string>().c_str();
+        CPPUNIT_ASSERT_EQUAL(OString("show"), sAction);
+
+        OString sType = aTree.get_child("type").get_value<std::string>().c_str();
+        CPPUNIT_ASSERT_EQUAL(OString("drop-down"), sType);
+
+        OString sTextArea = aTree.get_child("textArea").get_value<std::string>().c_str();
+        CPPUNIT_ASSERT_EQUAL(OString("0, 0, -1, -1"), sTextArea);
+    }
+
+    // Do a tile rendering to trigger the button message with a valide text area
+    size_t nCanvasWidth = 1024;
+    size_t nCanvasHeight = 512;
+    std::vector<unsigned char> aPixmap(nCanvasWidth * nCanvasHeight * 4, 0);
+    ScopedVclPtrInstance<VirtualDevice> pDevice(DeviceFormat::DEFAULT);
+    pDevice->SetBackground(Wallpaper(COL_TRANSPARENT));
+    pDevice->SetOutputSizePixelScaleOffsetAndBuffer(Size(nCanvasWidth, nCanvasHeight),
+                                                    Fraction(1.0), Point(), aPixmap.data());
+    pXTextDocument->paintTile(*pDevice, nCanvasWidth, nCanvasHeight, /*nTilePosX=*/0,
+                              /*nTilePosY=*/0, /*nTileWidth=*/10000, /*nTileHeight=*/4000);
+
+    CPPUNIT_ASSERT(!m_aFormFieldButton.isEmpty());
+    {
+        std::stringstream aStream(m_aFormFieldButton.getStr());
+        boost::property_tree::ptree aTree;
+        boost::property_tree::read_json(aStream, aTree);
+
+        OString sAction = aTree.get_child("action").get_value<std::string>().c_str();
+        CPPUNIT_ASSERT_EQUAL(OString("show"), sAction);
+
+        OString sType = aTree.get_child("type").get_value<std::string>().c_str();
+        CPPUNIT_ASSERT_EQUAL(OString("drop-down"), sType);
+
+        OString sTextArea = aTree.get_child("textArea").get_value<std::string>().c_str();
+        CPPUNIT_ASSERT_EQUAL(OString("1538, 1418, 1026, 275"), sTextArea);
+    }
+
+    // Move the cursor back so the button becomes hidden.
+    pWrtShell->Left(CRSR_SKIP_CHARS, /*bSelect=*/false, 1, /*bBasicCall=*/false);
+
+    CPPUNIT_ASSERT(!m_aFormFieldButton.isEmpty());
+    {
+        std::stringstream aStream(m_aFormFieldButton.getStr());
+        boost::property_tree::ptree aTree;
+        boost::property_tree::read_json(aStream, aTree);
+
+        OString sAction = aTree.get_child("action").get_value<std::string>().c_str();
+        CPPUNIT_ASSERT_EQUAL(OString("hide"), sAction);
+
+        OString sType = aTree.get_child("type").get_value<std::string>().c_str();
+        CPPUNIT_ASSERT_EQUAL(OString("drop-down"), sType);
+    }
+}
+
 CPPUNIT_TEST_SUITE_REGISTRATION(SwTiledRenderingTest);
 
 CPPUNIT_PLUGIN_IMPLEMENT();
diff --git a/sw/source/core/crsr/bookmrk.cxx b/sw/source/core/crsr/bookmrk.cxx
index 796da73697af..a0cb5a6f7c47 100644
--- a/sw/source/core/crsr/bookmrk.cxx
+++ b/sw/source/core/crsr/bookmrk.cxx
@@ -39,6 +39,10 @@
 #include <DateFormFieldButton.hxx>
 #include <DropDownFormFieldButton.hxx>
 #include <DocumentContentOperationsManager.hxx>
+#include <comphelper/lok.hxx>
+#include <view.hxx>
+#include <LibreOfficeKit/LibreOfficeKitEnums.h>
+#include <wrtsh.hxx>
 
 using namespace ::sw::mark;
 using namespace ::com::sun::star;
@@ -664,6 +668,7 @@ namespace sw::mark
 
     DropDownFieldmark::~DropDownFieldmark()
     {
+        SendLOKMessage("hide");
     }
 
     void DropDownFieldmark::ShowButton(SwEditWin* pEditWin)
@@ -674,9 +679,22 @@ namespace sw::mark
                 m_pButton = VclPtr<DropDownFormFieldButton>::Create(pEditWin, *this);
             m_pButton->CalcPosAndSize(m_aPortionPaintArea);
             m_pButton->Show();
+            SendLOKMessage("show");
         }
     }
 
+    void DropDownFieldmark::HideButton()
+    {
+        SendLOKMessage("hide");
+        FieldmarkWithDropDownButton::HideButton();
+    }
+
+    void DropDownFieldmark::RemoveButton()
+    {
+        SendLOKMessage("hide");
+        FieldmarkWithDropDownButton::RemoveButton();
+    }
+
     void DropDownFieldmark::SetPortionPaintArea(const SwRect& rPortionPaintArea)
     {
         if(m_aPortionPaintArea == rPortionPaintArea &&
@@ -689,6 +707,33 @@ namespace sw::mark
             m_pButton->Show();
             m_pButton->CalcPosAndSize(m_aPortionPaintArea);
             m_pButton->Invalidate();
+            SendLOKMessage("show");
+        }
+    }
+
+    void DropDownFieldmark::SendLOKMessage(const OString& sAction)
+    {
+        if (comphelper::LibreOfficeKit::isActive())
+        {
+            if (!m_pButton)
+              return;
+
+            SwEditWin* pEditWin = dynamic_cast<SwEditWin*>(m_pButton->GetParent());
+            if (!pEditWin)
+                return;
+
+            OString sPayload;
+            if (sAction == "show")
+            {
+                sPayload = OStringLiteral("{\"action\": \"show\","
+                           " \"type\": \"drop-down\", \"textArea\": \"") +
+                           m_aPortionPaintArea.SVRect().toString() + "\"}";
+            }
+            else
+            {
+                sPayload = "{\"action\": \"hide\", \"type\": \"drop-down\"}";
+            }
+            pEditWin->GetView().GetWrtShell().GetSfxViewShell()->libreOfficeKitViewCallback(LOK_CALLBACK_FORM_FIELD_BUTTON, sPayload.getStr());
         }
     }
 
diff --git a/sw/source/core/inc/bookmrk.hxx b/sw/source/core/inc/bookmrk.hxx
index fe5bff942568..90be64f1644a 100644
--- a/sw/source/core/inc/bookmrk.hxx
+++ b/sw/source/core/inc/bookmrk.hxx
@@ -280,8 +280,8 @@ namespace sw {
             virtual ~FieldmarkWithDropDownButton() override;
 
             virtual void ShowButton(SwEditWin* pEditWin) = 0;
-            void HideButton();
-            void RemoveButton();
+            virtual void HideButton();
+            virtual void RemoveButton();
 
         protected:
             VclPtr<FormFieldButton> m_pButton;
@@ -296,10 +296,14 @@ namespace sw {
             virtual ~DropDownFieldmark() override;
 
             virtual void ShowButton(SwEditWin* pEditWin) override;
+            virtual void HideButton() override;
+            virtual void RemoveButton() override;
 
             // This method should be called only by the portion so we can now the portion's painting area
             void SetPortionPaintArea(const SwRect& rPortionPaintArea);
 
+            void SendLOKMessage(const OString& sAction);
+
         private:
             SwRect m_aPortionPaintArea;
         };