add RT signal handler #164

nwg_panel/common.py

@@ -13,6 +13,7 @@ taskbars_list = []
 scratchpads_list = []
 workspaces_list = []
 controls_list = []
+executors_list = []
 tray_list = []
 config_dir = ""
 dwl_data_file = None

nwg_panel/config.py

@@ -2232,7 +2232,9 @@ class EditorWrapper(object):
             "icon-placement": "left",
             "icon-size": 16,
             "interval": 1,
-            "angle": 0.0
+            "angle": 0.0,
+            "sigrt": signal.SIGRTMIN+1,
+            "use-sigrt": False
         }
         for key in defaults:
             check_key(settings, key, defaults[key])
@@ -2289,6 +2291,15 @@ class EditorWrapper(object):
         self.executor_angle = builder.get_object("angle")
         self.executor_angle.set_active_id(str(settings["angle"]))
 
+        self.executor_sigrt = builder.get_object("sigrt")
+        self.executor_sigrt.set_numeric(True)
+        adj = Gtk.Adjustment(value=0, lower=signal.SIGRTMIN+1, upper=signal.SIGRTMAX+1, step_increment=1, page_increment=1, page_size=1)
+        self.executor_sigrt.configure(adj, 1, 0)
+        self.executor_sigrt.set_value(settings["sigrt"])
+
+        self.executor_use_sigrt = builder.get_object("use-sigrt")
+        self.executor_use_sigrt.set_active(settings["use-sigrt"])
+
         self.executor_remove = builder.get_object("remove")
 
         self.executor_save_to_db_btn = builder.get_object("save-to-database")
@@ -2342,6 +2353,9 @@ class EditorWrapper(object):
             except:
                 settings["angle"] = 0.0
 
+            settings["sigrt"] = int(self.executor_sigrt.get_value())
+            settings["use-sigrt"] = self.executor_use_sigrt.get_active()
+
             self.panel[config_key] = settings
         else:
             # delete from panel

nwg_panel/glade/config_executor.glade

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.38.2 -->
+<!-- Generated with glade 3.40.0 -->
 <interface>
   <requires lib="gtk+" version="3.24"/>
   <object class="GtkFrame" id="frame">
@@ -8,7 +8,7 @@
     <property name="label-xalign">0.5</property>
     <property name="shadow-type">out</property>
     <child>
-      <!-- n-columns=3 n-rows=16 -->
+      <!-- n-columns=3 n-rows=17 -->
       <object class="GtkGrid" id="grid">
         <property name="visible">True</property>
         <property name="can-focus">False</property>
@@ -202,6 +202,7 @@
 an icon name / path and a label 
 in 1 or 2 lines of text. See Wiki 
 for details.</property>
+            <property name="halign">start</property>
             <property name="icon-name">help-about</property>
           </object>
           <packing>
@@ -238,6 +239,7 @@ for details.</property>
             <property name="can-focus">False</property>
             <property name="tooltip-text" translatable="yes">Attention! Renaming an existing
 executor will create a new one.</property>
+            <property name="halign">start</property>
             <property name="icon-name">dialog-warning</property>
           </object>
           <packing>
@@ -361,18 +363,6 @@ executor will create a new one.</property>
             <property name="top-attach">11</property>
           </packing>
         </child>
-        <child>
-          <object class="GtkButton" id="save-to-database">
-            <property name="label" translatable="yes">Save to database</property>
-            <property name="visible">True</property>
-            <property name="can-focus">True</property>
-            <property name="receives-default">True</property>
-          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">15</property>
-          </packing>
-        </child>
         <child>
           <object class="GtkComboBoxText" id="angle">
             <property name="visible">True</property>
@@ -388,19 +378,6 @@ executor will create a new one.</property>
             <property name="top-attach">14</property>
           </packing>
         </child>
-        <child>
-          <object class="GtkCheckButton" id="remove">
-            <property name="label" translatable="yes">Remove executor</property>
-            <property name="visible">True</property>
-            <property name="can-focus">True</property>
-            <property name="receives-default">False</property>
-            <property name="draw-indicator">True</property>
-          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">15</property>
-          </packing>
-        </child>
         <child>
           <object class="GtkLabel">
             <property name="visible">True</property>
@@ -414,7 +391,78 @@ executor will create a new one.</property>
           </packing>
         </child>
         <child>
-          <placeholder/>
+          <object class="GtkButton" id="save-to-database">
+            <property name="label" translatable="yes">Save to database</property>
+            <property name="visible">True</property>
+            <property name="can-focus">True</property>
+            <property name="receives-default">True</property>
+          </object>
+          <packing>
+            <property name="left-attach">1</property>
+            <property name="top-attach">16</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkCheckButton" id="remove">
+            <property name="label" translatable="yes">Remove executor</property>
+            <property name="visible">True</property>
+            <property name="can-focus">True</property>
+            <property name="receives-default">False</property>
+            <property name="draw-indicator">True</property>
+          </object>
+          <packing>
+            <property name="left-attach">0</property>
+            <property name="top-attach">16</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="halign">end</property>
+            <property name="label" translatable="yes">Refresh on signal :</property>
+          </object>
+          <packing>
+            <property name="left-attach">0</property>
+            <property name="top-attach">15</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkSpinButton" id="sigrt">
+            <property name="visible">True</property>
+            <property name="can-focus">True</property>
+            <property name="secondary-icon-tooltip-text" translatable="yes">Signal number in range SIRTMIN+1 - SIGRTMAX</property>
+          </object>
+          <packing>
+            <property name="left-attach">1</property>
+            <property name="top-attach">15</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkCheckButton" id="use-sigrt">
+            <property name="label" translatable="yes">use signal</property>
+            <property name="visible">True</property>
+            <property name="can-focus">True</property>
+            <property name="receives-default">False</property>
+            <property name="draw-indicator">True</property>
+          </object>
+          <packing>
+            <property name="left-attach">2</property>
+            <property name="top-attach">15</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkImage">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="tooltip-text" translatable="yes">Executor refresh interval in seconds. Set 0 for no auto-refresh.</property>
+            <property name="halign">start</property>
+            <property name="icon-name">help-about</property>
+          </object>
+          <packing>
+            <property name="left-attach">2</property>
+            <property name="top-attach">13</property>
+          </packing>
         </child>
         <child>
           <placeholder/>

nwg_panel/main.py

@@ -97,6 +97,9 @@ def signal_handler(sig, frame):
 
 def rt_sig_handler(sig, frame):
     print("{} RT signal received".format(sig))
+    for executor in common.executors_list:
+        if executor.use_sigrt and executor.sigrt == sig:
+            print("Refreshing {} on signal {}".format(executor.name, sig))
 
 
 def restart():
@@ -203,8 +206,9 @@ def instantiate_content(panel, container, content_list, icons_path=""):
 
         if "executor-" in item:
             if item in panel:
-                executor = Executor(panel[item], icons_path)
+                executor = Executor(panel[item], icons_path, item)
                 container.pack_start(executor, False, False, panel["items-padding"])
+                common.executors_list.append(executor)
             else:
                 print("'{}' not defined in this panel instance".format(item))
 

nwg_panel/modules/executor.py

@@ -2,6 +2,7 @@
 
 import subprocess
 import threading
+import signal
 
 import gi
 from gi.repository import GLib
@@ -15,8 +16,10 @@ from gi.repository import Gtk, Gdk, GdkPixbuf
 
 
 class Executor(Gtk.EventBox):
-    def __init__(self, settings, icons_path):
+    def __init__(self, settings, icons_path, executor_name):
+        self.name = executor_name
         self.settings = settings
+        print("executor name:", self.name)
         self.icons_path = icons_path
         Gtk.EventBox.__init__(self)
         self.box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=0)
@@ -38,9 +41,15 @@ class Executor(Gtk.EventBox):
         check_key(settings, "on-scroll-up", "")
         check_key(settings, "on-scroll-down", "")
         check_key(settings, "angle", 0.0)
+        check_key(settings, "sigrt", signal.SIGRTMIN + 1)
+        check_key(settings, "use-sigrt", False)
 
         self.label.set_angle(settings["angle"])
 
+        # refresh signal in range SIGRTMIN+1 - SIGRTMAX
+        self.sigrt = settings["sigrt"]
+        self.use_sigrt = settings["use-sigrt"]
+
         if settings["angle"] != 0.0:
             self.box.set_orientation(Gtk.Orientation.VERTICAL)