Add alerts

Added minimal alerts:
- Simple Alert (Alert)
In desktops it is a dialog and in Sugar it is a SugarAlert.
- Notify (NotifyAlert)
In desktops it is a notification made with pynotify and in Sugar its a sugar.graphics.alert.NotifyAlert

Signed-off-by: Daniel Francis <francis@sugarlabs.org>

3 files changed, 115 insertions, 4 deletions

diff --git a/application.py b/application.py
index 23556ab..7fcac0c 100755
--- a/application.py
+++ b/application.py
@@ -32,6 +32,7 @@ glib.set_application_name(appname)
 import gtk
 from options import Options
 from canvas import Canvas
+from sweetener.alerts import Alert
 
 this_dir = os.path.split('__file__')[:-1]
 if len(this_dir) == 1 and this_dir[0] == '':
@@ -139,7 +140,7 @@ class Application(gtk.Window):
     def expose_event(self, widget, event):
         #logger.debug('Exposing')
         if not self.started:
-            if self.file_path != None:
+            if self.file_path is not None:
                 self.canvas.read_file(self.file_path)
                 self.set_title(os.path.abspath('%s - %s' % (self.file_path,
                                                             appname)))
@@ -157,6 +158,9 @@ class Application(gtk.Window):
             else:
                 self._unfullscreen_button.hide()
 
+    def add_alert(self, alert):
+        alert.run()
+
     def fullscreen(self):
         self.options.hide()
         self._is_fullscreen = True
@@ -198,7 +202,8 @@ class Application(gtk.Window):
 
     def stop(self):
         if info.io_mode == info.CONFIG:
-            self.file_path = os.path.join(os.environ['HOME'], '.' + info.lower_name)
+            self.file_path = os.path.join(os.environ['HOME'],
+                                          '.' + info.lower_name)
             self.save()
         gtk.main_quit()
 
@@ -217,7 +222,7 @@ class Application(gtk.Window):
             self.set_title('%s - %s' % (self.file_path, appname))
 
     def save(self):
-        if self.file_path == None:
+        if self.file_path is None:
             self.save_as()
         else:
             logger.debug('Write file %s' % self.file_path)
@@ -255,7 +260,8 @@ if __name__ == '__main__':
             file_path = None
             logger.debug('Create new file')
     else:
-        if os.path.exists(os.path.join(os.environ['HOME'], '.' + info.lower_name)):
+        if os.path.exists(os.path.join(os.environ['HOME'],
+                                       '.' + info.lower_name)):
             file_path = os.path.join(os.environ['HOME'], '.' + info.lower_name)
         else:
             file_path = None
diff --git a/desktop/sweetener/alerts.py b/desktop/sweetener/alerts.py
new file mode 100644
index 0000000..7f90efb
--- /dev/null
+++ b/desktop/sweetener/alerts.py
@@ -0,0 +1,44 @@
+# Copyright (C) 2012 S. Daniel Francis <francis@sugarlabs.org>
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+import gtk
+
+import pynotify
+import info
+pynotify.init(info.name)
+
+
+class Alert(gtk.MessageDialog):
+    def __init__(self, parent, title, content, mtype):
+        gtk.MessageDialog.__init__(self, parent, gtk.DIALOG_MODAL,
+                                   type=mtype,
+                                   buttons=gtk.BUTTONS_OK)
+        self.set_markup('<b>%s</b>' % title)
+        self.format_secondary_markup(content)
+
+    def run(self):
+        gtk.MessageDialog.run(self)
+        gtk.MessageDialog.destroy(self)
+
+
+class NotifyAlert(pynotify.Notification):
+    def __init__(self, parent, title, content, icon, timeout):
+        pynotify.Notification.__init__(self, title, message=content, icon=icon)
+        self.set_timeout(timeout)
+
+    def run(self):
+        self.show()
diff --git a/sugar/sweetener/alerts.py b/sugar/sweetener/alerts.py
new file mode 100644
index 0000000..9609a82
--- /dev/null
+++ b/sugar/sweetener/alerts.py
@@ -0,0 +1,61 @@
+# Copyright (C) 2012 S. Daniel Francis <francis@sugarlabs.org>
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+from gettext import gettext as _
+import gtk
+from sugar.graphics import style
+from sugar.graphics.alert import Alert as SugarAlert
+from sugar.graphics.alert import NotifyAlert as SugarNotify
+
+from icon import Icon
+
+
+class Alert(SugarAlert):
+    def __init__(self, parent, title, content, mtype):
+        SugarAlert.__init__(self)
+        self._parent = parent
+        if mtype == gtk.MESSAGE_INFO:
+            icon = Icon(icon_name='emblem-notification')
+            icon.show()
+            self.props.icon = icon
+            icon.props.pixel_size = style.SMALL_ICON_SIZE * 2
+        self.props.title = title
+        self.props.msg = content
+        ok_icon = Icon(icon_name='dialog-ok')
+        self.add_button(gtk.RESPONSE_OK, _('Ok'), ok_icon)
+        ok_icon.show()
+        self.connect('response', self.remove_myself)
+
+    def remove_myself(self, widget=None, response=None):
+        self._parent.remove_alert(self)
+
+
+class NotifyAlert(SugarNotify):
+    def __init__(self, parent, title, content, icon, timeout):
+        SugarNotify.__init__(self, timeout)
+        self._parent = parent
+        self.props.title = title
+        self.props.msg = content
+        if icon is not None:
+            icon = Icon(icon_name=icon)
+            icon.show()
+            self.props.icon = icon
+            icon.props.pixel_size = style.SMALL_ICON_SIZE * 2
+        self.connect('response', self.remove_myself)
+
+    def remove_myself(self, widget=None, response=None):
+        self._parent.remove_alert(self)