[orca] Hack around broken text-insertion events from gnome-shell

[Joanmarie Diggs <joanied src gnome org>]

commit 353bdf7182ad47dd3e19bd0762cc86a753736be0
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Sun Feb 14 14:12:39 2016 -0500

    Hack around broken text-insertion events from gnome-shell

 src/orca/script_utilities.py                       |    3 ++
 .../scripts/apps/gnome-shell/script_utilities.py   |   22 ++++++++++++++++++++
 src/orca/scripts/default.py                        |    4 ++-
 3 files changed, 28 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/script_utilities.py b/src/orca/script_utilities.py
index 58c3abd..99dfddc 100644
--- a/src/orca/script_utilities.py
+++ b/src/orca/script_utilities.py
@@ -2289,6 +2289,9 @@ class Utilities:
 
         return None
 
+    def insertedText(self, event):
+        return event.any_data
+
     def selectedText(self, obj):
         """Get the text selection for the given object.
 
diff --git a/src/orca/scripts/apps/gnome-shell/script_utilities.py 
b/src/orca/scripts/apps/gnome-shell/script_utilities.py
index 97da615..90a567d 100644
--- a/src/orca/scripts/apps/gnome-shell/script_utilities.py
+++ b/src/orca/scripts/apps/gnome-shell/script_utilities.py
@@ -53,6 +53,28 @@ class Utilities(script_utilities.Utilities):
 
         return children
 
+    def insertedText(self, event):
+        if event.any_data:
+            return event.any_data
+
+        if event.detail1 == -1:
+            msg = "GNOME SHELL: Broken text insertion event"
+            debug.println(debug.LEVEL_INFO, msg, True)
+
+            text = self.queryNonEmptyText(event.source)
+            if text:
+                string = text.getText(0, -1)
+                if string:
+                    msg = "HACK: Returning last char in '%s'" % string
+                    debug.println(debug.LEVEL_INFO, msg, True)
+                    return string[-1]
+
+            msg = "GNOME SHELL: Unable to correct broken text insertion event"
+            debug.println(debug.LEVEL_INFO, msg, True)
+
+        return ""
+
+
     def selectedText(self, obj):
         string, start, end = super().selectedText(obj)
         if -1 not in [start, end]:
diff --git a/src/orca/scripts/default.py b/src/orca/scripts/default.py
index bc45ca2..e96e56f 100644
--- a/src/orca/scripts/default.py
+++ b/src/orca/scripts/default.py
@@ -2563,7 +2563,9 @@ class Script(script.Script):
             return
 
         speakString = True
-        string = event.any_data
+
+        # Because some implementations are broken.
+        string = self.utilities.insertedText(event)
 
         if self.utilities.lastInputEventWasCommand():
             msg = "DEFAULT: Insertion is believed to be due to command"