[orca] Do a focus grab rather than use the activate action for left click

[Joanmarie Diggs <joanied src gnome org>]

commit 214b1130780dd0cd1c6074b324488d4df9680964
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Fri Jun 28 13:53:23 2019 -0400

    Do a focus grab rather than use the activate action for left click
    
    Activate functions more like a double-click.

 src/orca/eventsynthesizer.py | 10 ++++++++++
 src/orca/scripts/default.py  |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)
---
diff --git a/src/orca/eventsynthesizer.py b/src/orca/eventsynthesizer.py
index 1b2f59990..d550525c0 100644
--- a/src/orca/eventsynthesizer.py
+++ b/src/orca/eventsynthesizer.py
@@ -308,3 +308,13 @@ def clickActionOn(obj):
 
 def pressActionOn(obj):
     return _performNamedAction(obj, "press")
+
+def grabFocusOn(obj):
+    try:
+        component = obj.queryComponent()
+    except:
+        msg = "ERROR: Exception querying component of %s" % obj
+        debug.println(debug.LEVEL_INFO, msg, True)
+        return False
+
+    return component.grabFocus()
diff --git a/src/orca/scripts/default.py b/src/orca/scripts/default.py
index d5267e7ad..848719c21 100644
--- a/src/orca/scripts/default.py
+++ b/src/orca/scripts/default.py
@@ -1313,7 +1313,7 @@ class Script(script.Script):
                 return True
             if eventsynthesizer.pressActionOn(obj):
                 return True
-            if eventsynthesizer.activateActionOn(obj):
+            if eventsynthesizer.grabFocusOn(obj):
                 return True
             return False