sw content controls, picture: add LOK API

- send a LOK_CALLBACK_CONTENT_CONTROL callback with
  action=change-picture when a file picker should be shown

- extend lok::Document::sendContentControlEvent() to be able to replace
  the placeholder with the selected URL

- update gtktiledviewer to work with these

Change-Id: Ifb3750803885fc09fc82905b0cf85b2b8ca06e77
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/134750
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

1 files changed, 25 insertions, 2 deletions

diff --git a/libreofficekit/source/gtk/lokdocview.cxx b/libreofficekit/source/gtk/lokdocview.cxx
index aafaa084be9c..39f2281b0c7d 100644
--- a/libreofficekit/source/gtk/lokdocview.cxx
+++ b/libreofficekit/source/gtk/lokdocview.cxx
@@ -1397,9 +1397,9 @@ callback (gpointer pData)
 
     case LOK_CALLBACK_CONTENT_CONTROL:
     {
-        std::stringstream aStream(pCallback->m_aPayload);
+        std::stringstream aPayloadStream(pCallback->m_aPayload);
         boost::property_tree::ptree aTree;
-        boost::property_tree::read_json(aStream, aTree);
+        boost::property_tree::read_json(aPayloadStream, aTree);
         auto aAction = aTree.get<std::string>("action");
         if (aAction == "show")
         {
@@ -1410,6 +1410,29 @@ callback (gpointer pData)
         {
             priv->m_aContentControlRectangles.clear();
         }
+        else if (aAction == "change-picture")
+        {
+            GtkWidget* pDialog = gtk_file_chooser_dialog_new(
+                "Open File", GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(pDocView))),
+                GTK_FILE_CHOOSER_ACTION_OPEN, "Cancel", GTK_RESPONSE_CANCEL, "Open",
+                GTK_RESPONSE_ACCEPT, nullptr);
+            gint nRet = gtk_dialog_run(GTK_DIALOG(pDialog));
+            if (nRet == GTK_RESPONSE_ACCEPT)
+            {
+                GtkFileChooser* pChooser = GTK_FILE_CHOOSER(pDialog);
+                char* pFilename = gtk_file_chooser_get_uri(pChooser);
+                boost::property_tree::ptree aValues;
+                aValues.put("type", "picture");
+                aValues.put("changed", pFilename);
+                std::stringstream aStream;
+                boost::property_tree::write_json(aStream, aValues);
+                std::string aJson = aStream.str();
+                lok_doc_view_send_content_control_event(pDocView, aJson.c_str());
+
+                g_free(pFilename);
+            }
+            gtk_widget_destroy(pDialog);
+        }
         g_signal_emit(pCallback->m_pDocView, doc_view_signals[CONTENT_CONTROL], 0,
                       pCallback->m_aPayload.c_str());
         gtk_widget_queue_draw(GTK_WIDGET(pDocView));