Screenshot popup alert

This feature adds a screenshot alert to Sugar.
On pressing <Alt>+1 key or selecting 'Take a screenshot' option from bottom toolbar
generates a popup alert where user can change the default name of that screenshot.
The popup can be dismissed by clicking 'X' button or by pressing 'Escape' key.

extensions/deviceicon/display.py

@@ -34,7 +34,7 @@
 
 from jarabe.frame.frameinvoker import FrameWidgetInvoker
 from jarabe.model import brightness
-from jarabe.model.screenshot import take_screenshot
+from jarabe.screenshotpanel.gui import ScreenshotPanel
 from jarabe import frame
 
 
@@ -230,7 +230,7 @@ def __screenshot_cb(self, palette):
     def __take_screenshot_cb(self, frame_):
         if frame_.is_visible():
             return True
-        take_screenshot()
+        panel = ScreenshotPanel()
         frame_.show()
         return False
 

extensions/globalkey/screenshot.py

@@ -15,10 +15,10 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
-from jarabe.model.screenshot import take_screenshot
+from jarabe.screenshotpanel.gui import ScreenshotPanel
 
 BOUND_KEYS = ['<alt>1', 'Print']
 
 
 def handle_key_press(key):
-    take_screenshot()
+    panel = ScreenshotPanel()

src/jarabe/Makefile.am

@@ -1,9 +1,10 @@
 SUBDIRS = 		\
-	controlpanel	\
+	controlpanel    \
 	desktop		\
 	frame 		\
 	journal		\
 	model		\
+	screenshotpanel    \
 	view		\
 	intro		\
 	util		\

src/jarabe/screenshotpanel/Makefile.am

@@ -0,0 +1,5 @@
+sugardir = $(pythondir)/jarabe/screenshotpanel
+sugar_PYTHON = 				\
+	__init__.py			\
+	gui.py				\
+	toolbar.py

src/jarabe/screenshotpanel/__init__.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2016  Utkarsh Tiwari
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Contact information:
+# Utkarsh Tiwari    [email protected]