donotdisturb: Add wayland fullscreen detection (#427)

* [wayland] detect fullscreen with wlrctl

Will work with the next sway release or current master branch.

* Add dependency_checker

README.md

@@ -95,6 +95,7 @@ Ensure to meet the following dependencies:
 - libappindicator-gtk3
 - python3-psutil
 - xprintidle (optional)
+- wlrctl (wayland optional)
 
 **To install Safe Eyes:**
 

safeeyes/plugins/donotdisturb/config.json

@@ -6,7 +6,7 @@
     },
     "dependencies": {
         "python_modules": [],
-        "shell_commands": ["xprop"],
+        "shell_commands": [],
         "operating_systems": [],
         "desktop_environments": [],
         "resources": []
@@ -37,4 +37,4 @@
         }
     ],
     "break_override_allowed": true
-}
+}

safeeyes/plugins/donotdisturb/dependency_checker.py

@@ -0,0 +1,31 @@
+# Safe Eyes is a utility to remind you to take break frequently
+# to protect your eyes from eye strain.
+
+# Copyright (C) 2017  Gobinath
+
+# 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/>.
+
+from safeeyes import utility
+
+
+def validate(plugin_config, plugin_settings):
+    command = None
+    if utility.IS_WAYLAND:
+        command = "wlrctl"
+    else:
+        command = "xprop"
+    if not utility.command_exist(command):
+        return _("Please install the command-line tool '%s'") % command
+    else:
+        return None

safeeyes/plugins/donotdisturb/plugin.py

@@ -30,6 +30,7 @@ import gi
 gi.require_version('Gdk', '3.0')
 from gi.repository import Gdk
 from gi.repository import GdkX11  # noqa F401
+from safeeyes import utility
 
 context = None
 skip_break_window_classes = []
@@ -38,7 +39,24 @@ unfullscreen_allowed = True
 dnd_while_on_battery = False
 
 
-def is_active_window_skipped(pre_break):
+def is_active_window_skipped_wayland(pre_break):
+    cmdlist = ['wlrctl', 'toplevel', 'find', 'state:fullscreen']
+    try:
+        process = subprocess.Popen(cmdlist, stdout=subprocess.PIPE)
+        process.communicate()[0]
+        if process.returncode == 0:
+            return True
+        elif process.returncode == 1:
+            return False
+        elif process.returncode == 127:
+            logging.warning('Could not find wlrctl needed to detect fullscreen under wayland')
+            return False
+    except subprocess.CalledProcessError:
+        logging.warning('Error in finding full-screen application')
+    return False
+
+
+def is_active_window_skipped_xorg(pre_break):
     """
     Check for full-screen applications.
     This method must be executed by the main thread. If not, it will cause random failure.
@@ -123,7 +141,10 @@ def on_pre_break(break_obj):
     """
     Lifecycle method executes before the pre-break period.
     """
-    skip_break = is_active_window_skipped(True)
+    if utility.IS_WAYLAND:
+        skip_break = is_active_window_skipped_wayland(True)
+    else:
+        skip_break = is_active_window_skipped_xorg(True)
     if dnd_while_on_battery and not skip_break:
         skip_break = is_on_battery()
     return skip_break
@@ -133,7 +154,10 @@ def on_start_break(break_obj):
     """
     Lifecycle method executes just before the break.
     """
-    skip_break = is_active_window_skipped(False)
+    if utility.IS_WAYLAND:
+        skip_break = is_active_window_skipped_wayland(True)
+    else:
+        skip_break = is_active_window_skipped_xorg(True)
     if dnd_while_on_battery and not skip_break:
         skip_break = is_on_battery()
     return skip_break