Open settings with a long press on the Menu key

controller/Changelog.md

@@ -2,6 +2,7 @@
 
 ## Added
 
+- kiosk: Open settings with a long press on the Menu key
 - controller: Enable spatial navigation using the arrow keys
 
 ## Removed

docs/user-manual/Readme.org

@@ -33,7 +33,7 @@ When a remote control with a power button is connected, the system may be shut d
 
 * Administration
 
-<<administration>>A menu for system administration may be accessed with the key combination ~Ctrl-Shift-F12~.
+<<administration>>A menu for system administration may be accessed with the key combination ~Ctrl-Shift-F12~, or with a long press on the Menu key.
 
 The administration interface opens to a page displaying basic system information.
 

kiosk/kiosk_browser/__init__.py

@@ -1,6 +1,7 @@
 import sys
 import logging
-from PyQt5.QtCore import Qt, QUrl
+import signal
+from PyQt5.QtCore import Qt, QUrl, QSize
 from PyQt5.QtGui import QKeySequence
 from PyQt5.QtWidgets import QApplication
 
@@ -20,9 +21,25 @@ def start(kiosk_url, settings_url, toggle_settings_key, fullscreen = True):
 
     mainWidget.setContextMenuPolicy(Qt.NoContextMenu)
 
+    screen_size = app.primaryScreen().size()
+
     if fullscreen:
-        set_fullscreen(app, mainWidget)
+        # Without a Window Manager, showFullScreen does not work under X,
+        # so set the window size to the primary screen size.
+        mainWidget.resize(screen_size)
+        mainWidget.showFullScreen()
+    else:
+        mainWidget.resize(QSize(round(screen_size.width() / 2), round(screen_size.height() / 2)))
+        mainWidget.show()
 
+    # Quit application when receiving SIGINT
+    def on_SIGINT(signum, frame):
+       print('Exiting…')
+       app.quit()
+       sys.exit(130)
+    signal.signal(signal.SIGINT, on_SIGINT)
+
+    # Start application
     app.exec_()
 
 def parseUrl(url):
@@ -31,10 +48,3 @@ def parseUrl(url):
         raise InvalidUrl('Failed to parse URL "%s"' % url) from Exception
     else:
         return parsed_url
-
-def set_fullscreen(app, mainWidget):
-    # Without a Window Manager, showFullScreen does not work under X,
-    # so set the window size to the primary screen size.
-    screen_size = app.primaryScreen().size()
-    mainWidget.resize(screen_size)
-    mainWidget.showFullScreen()

kiosk/kiosk_browser/browser_widget.py

@@ -54,17 +54,18 @@ def __init__(self, url, get_current_proxy, parent):
         # Allow sound playback without user gesture
         self._webview.page().settings().setAttribute(QtWebEngineWidgets.QWebEngineSettings.PlaybackRequiresUserGesture, False)
 
+        # Prevent opening context menu on right click or pressing menu
+        self._webview.setContextMenuPolicy(QtCore.Qt.ContextMenuPolicy.NoContextMenu)
+
         # Load url
         self._webview.setUrl(url)
         self._view(Status.LOADING)
         self._webview.loadFinished.connect(self._load_finished)
 
         # Shortcut to manually reload
-        self._reload_shortcut = QtWidgets.QShortcut('CTRL+R', self)
-        self._reload_shortcut.activated.connect(self.reload)
+        QtWidgets.QShortcut('CTRL+R', self).activated.connect(self.reload)
         # Shortcut to perform a hard refresh
-        self._hard_refresh_shortcut = QtWidgets.QShortcut('CTRL+SHIFT+R', self)
-        self._hard_refresh_shortcut.activated.connect(self._hard_refresh)
+        QtWidgets.QShortcut('CTRL+SHIFT+R', self).activated.connect(self._hard_refresh)
 
         # Prepare reload timer
         self._reload_timer = QtCore.QTimer(self)

kiosk/kiosk_browser/main_widget.py

@@ -1,12 +1,13 @@
 from PyQt5 import QtWidgets, QtCore
+import time
 
 from kiosk_browser import browser_widget, captive_portal, dialogable_widget, proxy as proxy_module
 
 class MainWidget(QtWidgets.QWidget):
-    """ Show website at kiosk_url.
+    """ Show website from kiosk_url.
 
-    - Show settings in dialog using shortcut.
-    - Show message when captive portal is detected, allowing to show in dialog.
+    - Show settings in a dialog using a shortcut or long pressing Menu.
+    - Show toolbar message when captive portal is detected, opening it in a dialog.
     - Use proxy configured in Connman.
     """
 
@@ -17,14 +18,18 @@ def __init__(self, kiosk_url: str, settings_url: str, toggle_settings_key: str):
         proxy = proxy_module.Proxy()
         proxy.start_monitoring_daemon()
 
+        # Menu press
+        self._menu_press_since = None
+        self._menu_press_delay_seconds = 1.5
+
         # Browser widget
         self._kiosk_url = kiosk_url
         self._settings_url = settings_url
         self._dialogable_browser = dialogable_widget.DialogableWidget(
             parent = self,
             inner_widget = browser_widget.BrowserWidget(
-                url = kiosk_url, 
-                get_current_proxy = proxy.get_current, 
+                url = kiosk_url,
+                get_current_proxy = proxy.get_current,
                 parent = self),
             on_close = self._close_dialog)
 
@@ -43,9 +48,12 @@ def __init__(self, kiosk_url: str, settings_url: str, toggle_settings_key: str):
         self._layout.addWidget(self._dialogable_browser)
         self.setLayout(self._layout)
 
-        # Shortcuts
+        # Shortcut to toggle settings
         QtWidgets.QShortcut(toggle_settings_key, self).activated.connect(self._toggle_settings)
 
+        # Look at events with the eventFilter function
+        self.installEventFilter(self)
+
     # Private
 
     def _toggle_settings(self):
@@ -73,3 +81,18 @@ def _close_dialog(self):
             self._dialogable_browser.inner_widget().load(self._kiosk_url)
             if self._is_captive_portal_open:
                 self._is_captive_portal_open = False
+
+    def eventFilter(self, source, event):
+        # Toggle settings with a long press on the Menu key
+        if event.type() == QtCore.QEvent.ShortcutOverride:
+            if event.key() == QtCore.Qt.Key_Menu:
+                if not event.isAutoRepeat():
+                    self._menu_press_since = time.time()
+                elif self._menu_press_since is not None and time.time() - self._menu_press_since > self._menu_press_delay_seconds:
+                    self._menu_press_since = None
+                    self._toggle_settings()
+        elif event.type() == QtCore.QEvent.KeyRelease:
+            if event.key() == QtCore.Qt.Key_Menu and not event.isAutoRepeat():
+                self._menu_press_since = None
+
+        return super(MainWidget, self).eventFilter(source, event)