Examples: Add some missing slot decorators

As unearthed by the warnings added by the logging category.
As a drive-by, fix some imports.

Pick-to: 6.3 6.2
Task-number: PYSIDE-2033
Change-Id: I3812c705b60eb7be744c3532fcfb0e4024763885
Reviewed-by: Christian Tismer <tismer@stackless.com>

2 files changed, 13 insertions, 7 deletions

diff --git a/examples/webenginewidgets/tabbedbrowser/browsertabwidget.py b/examples/webenginewidgets/tabbedbrowser/browsertabwidget.py
index bd96dd89c..79dc0c78b 100644
--- a/examples/webenginewidgets/tabbedbrowser/browsertabwidget.py
+++ b/examples/webenginewidgets/tabbedbrowser/browsertabwidget.py
@@ -6,8 +6,8 @@ from functools import partial
 from bookmarkwidget import BookmarkWidget
 from webengineview import WebEngineView
 from historywindow import HistoryWindow
-from PySide6 import QtCore
-from PySide6.QtCore import Qt, QUrl
+from PySide6.QtCore import Qt, QUrl, Signal, Slot
+from PySide6.QtGui import QIcon
 from PySide6.QtWidgets import QMenu, QTabBar, QTabWidget
 from PySide6.QtWebEngineCore import QWebEngineDownloadRequest, QWebEnginePage
 
@@ -15,9 +15,9 @@ from PySide6.QtWebEngineCore import QWebEngineDownloadRequest, QWebEnginePage
 class BrowserTabWidget(QTabWidget):
     """Enables having several tabs with QWebEngineView."""
 
-    url_changed = QtCore.Signal(QUrl)
-    enabled_changed = QtCore.Signal(QWebEnginePage.WebAction, bool)
-    download_requested = QtCore.Signal(QWebEngineDownloadRequest)
+    url_changed = Signal(QUrl)
+    enabled_changed = Signal(QWebEnginePage.WebAction, bool)
+    download_requested = Signal(QWebEngineDownloadRequest)
 
     def __init__(self, window_factory_function):
         super().__init__()
@@ -67,21 +67,25 @@ class BrowserTabWidget(QTabWidget):
         index = self.currentIndex()
         return self._webengineviews[index].url() if index >= 0 else QUrl()
 
+    @Slot(QUrl)
     def _url_changed(self, url):
         index = self.currentIndex()
         if index >= 0 and self._webengineviews[index] == self.sender():
                 self.url_changed.emit(url)
 
+    @Slot(str)
     def _title_changed(self, title):
         index = self._index_of_page(self.sender())
         if (index >= 0):
             self.setTabText(index, BookmarkWidget.short_title(title))
 
+    @Slot(QIcon)
     def _icon_changed(self, icon):
         index = self._index_of_page(self.sender())
         if (index >= 0):
             self.setTabIcon(index, icon)
 
+    @Slot(object,bool)
     def _enabled_changed(self, web_action, enabled):
         index = self.currentIndex()
         if index >= 0 and self._webengineviews[index] == self.sender():
@@ -203,5 +207,6 @@ class BrowserTabWidget(QTabWidget):
                 return p
         return -1
 
+    @Slot(QWebEngineDownloadRequest)
     def _download_requested(self, item):
         self.download_requested.emit(item)
diff --git a/examples/webenginewidgets/tabbedbrowser/webengineview.py b/examples/webenginewidgets/tabbedbrowser/webengineview.py
index 354cc50bc..95eb01f14 100644
--- a/examples/webenginewidgets/tabbedbrowser/webengineview.py
+++ b/examples/webenginewidgets/tabbedbrowser/webengineview.py
@@ -4,7 +4,7 @@
 from PySide6.QtWebEngineCore import QWebEnginePage
 from PySide6.QtWebEngineWidgets import QWebEngineView
 
-from PySide6 import QtCore
+from PySide6.QtCore import Signal, Slot
 
 _web_actions = [QWebEnginePage.Back, QWebEnginePage.Forward,
                 QWebEnginePage.Reload,
@@ -15,7 +15,7 @@ _web_actions = [QWebEnginePage.Back, QWebEnginePage.Forward,
 
 class WebEngineView(QWebEngineView):
 
-    enabled_changed = QtCore.Signal(QWebEnginePage.WebAction, bool)
+    enabled_changed = Signal(QWebEnginePage.WebAction, bool)
 
     @staticmethod
     def web_actions():
@@ -49,6 +49,7 @@ class WebEngineView(QWebEngineView):
             return self._tab_factory_func()
         return self._window_factory_func()
 
+    @Slot()
     def _enabled_changed(self):
         action = self.sender()
         web_action = self._actions[action]