lok: a11y: impress: help screen reader to report shape selection

Refactored LOKDocumentFocusListener::notifyEvent.

Implemented 2 new callbacks:
- LOK_CALLBACK_A11Y_EDITING_IN_SELECTION_STATE: it says the client if
editing in a shape or cell is active or it isn't.
- LOK_CALLBACK_A11Y_SELECTION_CHANGED: it says if a shape has been
selected/unselected, the name of the shape and text content are sent
too for being reported by a screen reader.

Change-Id: I644bcc7daeb8772805688a9bccdabd0631ce0a22
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/158343
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>

1 files changed, 30 insertions, 1 deletions

diff --git a/include/LibreOfficeKit/LibreOfficeKitEnums.h b/include/LibreOfficeKit/LibreOfficeKitEnums.h
index ce093ff7a276..c17c6e811131 100644
--- a/include/LibreOfficeKit/LibreOfficeKitEnums.h
+++ b/include/LibreOfficeKit/LibreOfficeKitEnums.h
@@ -1001,7 +1001,32 @@ typedef enum
      *   the user got in from the outer to the inner; row/column span default
      *   value is 1; paragraph is the cell text content.
      */
-    LOK_CALLBACK_A11Y_FOCUSED_CELL_CHANGED = 67
+    LOK_CALLBACK_A11Y_FOCUSED_CELL_CHANGED = 67,
+
+    /**
+     * Accessibility event: text editing in a shape or cell has been enabled/disabled
+     *
+     *  {
+     *      "cell": true/false (editing a cell ?)
+     *      "enabled": true|false
+     *      "selection": a selection description
+     *      "paragraph": focused paragraph
+     *  }
+     */
+    LOK_CALLBACK_A11Y_EDITING_IN_SELECTION_STATE = 68,
+
+    /**
+     * Accessibility event: a selection (of a shape/graphic, etc.) has changed
+     *
+     *  {
+     *      "cell": true/false (selected object is a cell ?)
+     *      "action": "create"|"add"|"remove"
+     *      "name": selected object name
+     *      "text": text content if any
+     *  }
+     */
+    LOK_CALLBACK_A11Y_SELECTION_CHANGED = 69
+
 }
 LibreOfficeKitCallbackType;
 
@@ -1166,6 +1191,10 @@ static inline const char* lokCallbackTypeToString(int nType)
         return "LOK_CALLBACK_DOCUMENT_PASSWORD_RESET";
     case LOK_CALLBACK_A11Y_FOCUSED_CELL_CHANGED:
         return "LOK_CALLBACK_A11Y_FOCUSED_CELL_CHANGED";
+    case LOK_CALLBACK_A11Y_EDITING_IN_SELECTION_STATE:
+        return "LOK_CALLBACK_A11Y_EDITING_IN_SELECTION_STATE";
+    case LOK_CALLBACK_A11Y_SELECTION_CHANGED:
+        return "LOK_CALLBACK_A11Y_SELECTION_CHANGED";
     }
 
     assert(!"Unknown LibreOfficeKitCallbackType type.");