fix: show_error for install and downgrade threads

bauh/resources/locale/en

@@ -81,4 +81,5 @@ manage_window.upgrade_all.popup.title=Upgrade
 manage_window.upgrade_all.popup.body=Upgrade all selected applications ?
 manage_window.bt_about.tooltip=About
 warning.no_managers=There are no installed extensions. It will not be possible to intall and manage applications.
-confirmation=confirmation
+confirmation=confirmation
+and=and

bauh/resources/locale/es

@@ -83,4 +83,5 @@ manage_window.upgrade_all.popup.title=Actualizar
 manage_window.upgrade_all.popup.body=¿Actualizar todos los aplicativos seleccionados?
 manage_window.bt_about.tooltip=Sobre
 warning.no_managers=No hay extensiones instaladas. No será posible instalar y administrar aplicaciones.
-confirmation=confirmación
+confirmation=confirmación
+and=y

bauh/resources/locale/pt

@@ -83,4 +83,5 @@ manage_window.upgrade_all.popup.title=Atualizar
 manage_window.upgrade_all.popup.body=Atualizar todos os aplicativos selecionados ?
 manage_window.bt_about.tooltip=Sobre
 warning.no_managers=Não há nenhuma extensão instalada. Não será possível instalar e gerenciar aplicações.
-confirmation=confirmação
+confirmation=confirmação
+and=e

bauh/view/qt/thread.py

@@ -52,9 +52,6 @@ class AsyncAction(QThread, ProcessHandler):
         proc.subproc.communicate()
         return proc.subproc.returncode is None or proc.subproc.returncode == 0
 
-    def show_error(self, title: str, body: str):
-        dialog.show_error(title, body)
-
 
 class UpdateSelectedApps(AsyncAction):
 
@@ -137,6 +134,7 @@ class UninstallApp(AsyncAction):
 
 class DowngradeApp(AsyncAction):
     signal_finished = pyqtSignal(bool)
+    signal_error = pyqtSignal(dict)
     signal_output = pyqtSignal(str)
 
     def __init__(self, manager: ApplicationManager, locale_keys: dict, app: ApplicationView = None):
@@ -166,6 +164,9 @@ class DowngradeApp(AsyncAction):
         if msg:
             self.signal_output.emit(msg)
 
+    def show_error(self, title: str, body: str):
+        self.signal_error.emit({'title': title, 'body': body})
+
 
 class GetAppInfo(QThread):
     signal_finished = pyqtSignal(dict)
@@ -226,6 +227,7 @@ class SearchApps(QThread):
 class InstallApp(AsyncAction):
 
     signal_finished = pyqtSignal(object)
+    signal_error = pyqtSignal(dict)
     signal_output = pyqtSignal(str)
 
     def __init__(self, manager: ApplicationManager, disk_cache: bool, icon_cache: Cache, locale_keys: dict, app: ApplicationView = None):
@@ -267,6 +269,9 @@ class InstallApp(AsyncAction):
         if msg:
             self.signal_output.emit(msg)
 
+    def show_error(self, title: str, body: str):
+        self.signal_error.emit({'title': title, 'body': body})
+
 
 class AnimateProgress(QThread):
 

bauh/view/qt/window.py

@@ -154,6 +154,7 @@ class ManageWindow(QWidget):
         self.thread_downgrade = DowngradeApp(self.manager, self.locale_keys)
         self.thread_downgrade.signal_output.connect(self._update_action_output)
         self.thread_downgrade.signal_finished.connect(self._finish_downgrade)
+        self.thread_downgrade.signal_error.connect(self._show_error)
 
         self.thread_get_info = GetAppInfo(self.manager)
         self.thread_get_info.signal_finished.connect(self._finish_get_info)
@@ -166,6 +167,7 @@ class ManageWindow(QWidget):
 
         self.thread_install = InstallApp(manager=self.manager, disk_cache=self.disk_cache, icon_cache=self.icon_cache, locale_keys=self.locale_keys)
         self.thread_install.signal_output.connect(self._update_action_output)
+        self.thread_install.signal_error.connect(self._show_error)
         self.thread_install.signal_finished.connect(self._finish_install)
 
         self.thread_animate_progress = AnimateProgress()
@@ -217,6 +219,9 @@ class ManageWindow(QWidget):
         self.thread_warnings = ListWarnings(man=manager, locale_keys=locale_keys)
         self.thread_warnings.signal_warnings.connect(self._show_warnings)
 
+    def _show_error(self, msg: dict):
+        dialog.show_error(title=msg['title'], body=msg['body'])
+
     def _show_warnings(self, warnings: List[str]):
         if warnings:
             for warning in warnings: