feat: add stop (#14)

data/bavarder.gresource.xml

@@ -8,5 +8,6 @@
   </gresource>
   <gresource prefix="/io/github/Bavarder/Bavarder/icons/scalable/actions/">
     <file preprocess="xml-stripblanks" alias="paper-plane-symbolic.svg">icons/scalable/actions/paper-plane-symbolic.svg</file>
+    <file preprocess="xml-stripblanks" alias="x-circular-symbolic.svg">icons/scalable/actions/x-circular-symbolic.svg</file>
   </gresource>
 </gresources>

data/icons/scalable/actions/x-circular-symbolic.svg

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg height="16px" viewBox="0 0 16 16" width="16px" xmlns="http://www.w3.org/2000/svg">
+    <path d="m 7.96875 1 c -3.851562 0 -6.96875 3.117188 -6.96875 6.96875 s 3.117188 6.96875 6.96875 6.96875 s 6.96875 -3.117188 6.96875 -6.96875 s -3.117188 -6.96875 -6.96875 -6.96875 z m -3 3.96875 h 1 h 0.03125 c 0.253906 0.011719 0.511719 0.128906 0.6875 0.3125 l 1.28125 1.28125 l 1.3125 -1.28125 c 0.265625 -0.230469 0.445312 -0.304688 0.6875 -0.3125 h 1 v 1 c 0 0.285156 -0.035156 0.550781 -0.25 0.75 l -1.28125 1.28125 l 1.25 1.25 c 0.1875 0.1875 0.28125 0.453125 0.28125 0.71875 v 1 h -1 c -0.265625 0 -0.53125 -0.09375 -0.71875 -0.28125 l -1.28125 -1.28125 l -1.28125 1.28125 c -0.1875 0.1875 -0.453125 0.28125 -0.71875 0.28125 h -1 v -1 c 0 -0.265625 0.09375 -0.53125 0.28125 -0.71875 l 1.28125 -1.25 l -1.28125 -1.28125 c -0.210938 -0.195312 -0.304688 -0.46875 -0.28125 -0.75 z m 0 0" fill="#2e3436"/>
+</svg>

data/ui/window.blp

@@ -203,6 +203,17 @@ template BavarderWindow : Adw.ApplicationWindow {
                 halign: end;
                 action-name: "app.copy_bot";
               }
+
+              Button stop_button {
+                visible: true;
+                sensitive: false;
+                icon-name: "x-circular-symbolic";
+                tooltip-text: _("Stop");
+                hexpand: true;
+                halign: end;
+                action-name: "app.stop";
+                styles ["suggested-action", "circular"]
+              }
             }
           }
         }

src/main.py

@@ -50,6 +50,38 @@ class Step(IntEnum):
     LOAD_WEBVIEW = auto()
     RENDER = auto()
 
+class KillableThread(threading.Thread):
+    def __init__(self, *args, **keywords):
+        threading.Thread.__init__(self, *args, **keywords)
+        self.killed = False
+    
+    def start(self):
+        self.__run_backup = self.run
+        self.run = self.__run     
+        threading.Thread.start(self)
+    
+    def __run(self):
+        sys.settrace(self.globaltrace)
+        self.__run_backup()
+        self.run = self.__run_backup
+    
+    def globaltrace(self, frame, event, arg):
+        if event == 'call':
+            return self.localtrace
+        else:
+            return None
+    
+    def localtrace(self, frame, event, arg):
+        if self.killed:
+            if event == 'line':
+                raise SystemExit()
+        return self.localtrace
+    
+    def kill(self):
+        self.killed = True
+
+ 
+
 
 
 class BavarderApplication(Adw.Application):
@@ -69,6 +101,7 @@ class BavarderApplication(Adw.Application):
         self.create_action("copy_bot", self.on_copy_bot_action, ["<primary><shift>c"])
         self.create_action("ask", self.on_ask_action, ["<primary>Return"])
         self.create_action("clear", self.on_clear_action, ["<primary><shift>BackSpace"])
+        self.create_action("stop", self.on_stop_action, ["<primary>Escape"])
         # self.create_action("speak", self.on_speak_action, ["<primary>S"])
         # self.create_action("listen", self.on_listen_action, ["<primary>L"])
 
@@ -995,9 +1028,17 @@ Providers: {self.enabled_providers}
                 if self.clear_after_send:
                     self.win.prompt_text_view.get_buffer().set_text("")
 
-            self.t = threading.Thread(target=thread_run)
+            self.t = KillableThread(target=thread_run)
             self.t.start()
 
+    def on_stop_action(self, widget, _):
+        """Callback for the app.stop action."""
+        self.win.spinner.stop()
+        self.win.ask_button.set_visible(True)
+        self.win.wait_button.set_visible(False)
+        self.t.kill()
+        self.t.join()
+
     # def on_speak_action(self, widget, _):
     #     """Callback for the app.speak action."""
     #     print("app.speak action activated")

src/window.py

@@ -34,6 +34,7 @@ class BavarderWindow(Adw.ApplicationWindow):
     bot_text_view = Gtk.Template.Child()
     response_stack = Gtk.Template.Child()
     banner = Gtk.Template.Child()
+    stop_button = Gtk.Template.Child()
     # listen = Gtk.Template.Child()
     # listen_wait = Gtk.Template.Child()
     # listen_spinner = Gtk.Template.Child()