intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 29 insertions, 0 deletions

diff --git a/contrib/python/prompt-toolkit/py2/prompt_toolkit/layout/mouse_handlers.py b/contrib/python/prompt-toolkit/py2/prompt_toolkit/layout/mouse_handlers.py
new file mode 100644
index 0000000000..d443bf8315
--- /dev/null
+++ b/contrib/python/prompt-toolkit/py2/prompt_toolkit/layout/mouse_handlers.py
@@ -0,0 +1,29 @@
+from __future__ import unicode_literals
+
+from itertools import product
+from collections import defaultdict
+
+__all__ = (
+    'MouseHandlers',
+)
+
+
+class MouseHandlers(object):
+    """
+    Two dimentional raster of callbacks for mouse events.
+    """
+    def __init__(self):
+        def dummy_callback(cli, mouse_event):
+            """
+            :param mouse_event: `MouseEvent` instance.
+            """
+
+        # Map (x,y) tuples to handlers.
+        self.mouse_handlers = defaultdict(lambda: dummy_callback)
+
+    def set_mouse_handler_for_range(self, x_min, x_max, y_min, y_max, handler=None):
+        """
+        Set mouse handler for a region.
+        """
+        for x, y in product(range(x_min, x_max), range(y_min, y_max)):
+            self.mouse_handlers[x,y] = handler