GUI app (experimental) (#730)

* add default config * first pass * flake8 * cleanup * first pass at using qthreads * cleanup * WIP * better error handling * improved UI * bugfix * fix merge bugs * import order * cleanup * make gui requirements optional * pr review requested changes * Update server/gui/main.py Co-Authored-By: csweaver <charlottesweaver@gmail.com> * pr review request * qt child class methods -> camelCase * whitespace
2026-10-07 01:48:11 +08:00 · 2019-04-30 12:52:15 -07:00
parent ea187f48e0
commit 9f10d8095a
10 changed files with 407 additions and 17 deletions
@@ -0,0 +1,97 @@
+# flake8: noqa F403, F405
+from cefpython3 import cefpython as cef
+from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
+
+from server.gui.utils import WINDOWS, LINUX
+
+WindowUtils = cef.WindowUtils()
+
+# OS differences
+# noinspection PyUnresolvedReferences
+CefWidgetParent = QWidget
+if LINUX:
+    # noinspection PyUnresolvedReferences
+    CefWidgetParent = QX11EmbedContainer
+
+
+class CefWidget(CefWidgetParent):
+    def __init__(self, parent=None):
+        super(CefWidget, self).__init__(parent)
+        self.parent = parent
+        self.browser = None
+        # TODO test without this on linux
+        self.hidden_window = None  # Required for PyQt5 on Linux
+        self.show()
+
+    def focusInEvent(self, event):
+        # This event seems to never get called on Linux, as CEF is
+        # stealing all focus due to Issue #284.
+        if self.browser:
+            if WINDOWS:
+                WindowUtils.OnSetFocus(self.getHandle(), 0, 0, 0)
+            self.browser.SetFocus(True)
+
+    def focusOutEvent(self, event):
+        # This event seems to never get called on Linux, as CEF is
+        # stealing all focus due to Issue #284.
+        if self.browser:
+            self.browser.SetFocus(False)
+
+    def embedBrowser(self):
+        if LINUX:
+            self.hidden_window = QWindow()
+        window_info = cef.WindowInfo()
+        rect = [0, 0, self.width(), self.height()]
+        window_info.SetAsChild(self.getHandle(), rect)
+        # TODO better splash
+        self.browser = cef.CreateBrowserSync(window_info)
+
+    def getHandle(self):
+        if self.hidden_window:
+            # PyQt5 on Linux
+            return int(self.hidden_window.winId())
+        else:
+            return int(self.winId())
+
+    def moveEvent(self, _):
+        self.x = 0
+        self.y = 0
+        if self.browser:
+            if WINDOWS:
+                WindowUtils.OnSize(self.getHandle(), 0, 0, 0)
+            elif LINUX:
+                self.browser.SetBounds(self.x, self.y,
+                                       self.width(), self.height())
+            self.browser.NotifyMoveOrResizeStarted()
+
+    def resizeEvent(self, event):
+        size = event.size()
+        if self.browser:
+            if WINDOWS:
+                WindowUtils.OnSize(self.getHandle(), 0, 0, 0)
+            elif LINUX:
+                self.browser.SetBounds(self.x, self.y,
+                                       size.width(), size.height())
+            self.browser.NotifyMoveOrResizeStarted()
+
+
+class CefApplication(QApplication):
+    def __init__(self, args):
+        super(CefApplication, self).__init__(args)
+        if not cef.GetAppSetting("external_message_pump"):
+            self.timer = self.createTimer()
+
+    def createTimer(self):
+        timer = QTimer()
+        timer.timeout.connect(self.onTimer)
+        timer.start(10)
+        return timer
+
+    def onTimer(self):
+        cef.MessageLoopWork()
+
+    def stopTimer(self):
+        # Stop the timer after Qt's message loop has ended
+        self.timer.stop()