sw content controls, dropdown: add LOK API

- expose the available list items in a new "items" key of the
LOK_CALLBACK_CONTENT_CONTROL callback

- add a new lok::Document::sendContentControlEvent() function to be able
to select a list item from the current drop-down

- add a new listbox to the gtktiledviewer toolbar to select a content
control list item when the cursor is inside a dropdown

- add tests for the array API of tools::JsonWriter

Change-Id: I47f1333a7815d67952f7c20a9cba1b248886f6dd
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/134256
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

1 files changed, 6 insertions, 0 deletions

diff --git a/include/vcl/ITiledRenderable.hxx b/include/vcl/ITiledRenderable.hxx
index 0156db0f17c5..1bddde538c71 100644
--- a/include/vcl/ITiledRenderable.hxx
+++ b/include/vcl/ITiledRenderable.hxx
@@ -336,6 +336,12 @@ public:
     {
         return std::vector<basegfx::B2DRange>();
     }
+
+    /**
+     * Execute a content control event in the document.
+     * E.g. select a list item from a drop down content control.
+     */
+    virtual void executeContentControlEvent(const StringMap&) {}
 };
 } // namespace vcl