Attempt briefcase

projspecbriefcase/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2026, Martin Durant
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

projspecbriefcase/pyproject.toml

@@ -0,0 +1,116 @@
+# This project was generated with 0.3.25 using template: https://github.com/beeware/briefcase-template @ v0.3.25
+[tool.briefcase]
+project_name = "projspec-briefcase"
+bundle = "com.example"
+version = "0.0.1"
+url = "https://projspec.readthedocs.io/en/latest/"
+license.file = "LICENSE"
+author = "Martin Durant"
+author_email = "martin.durant@alumni.utoronto.ca"
+
+[tool.briefcase.app.projspecbriefcase]
+formal_name = "projspec-briefcase"
+description = "App bundle for projspec"
+long_description = """"""
+sources = [
+    "src/projspecbriefcase",
+]
+
+requires = [
+    "PySide6",
+    "../"
+]
+
+[tool.briefcase.app.projspecbriefcase.macOS]
+universal_build = true
+# As of Pyside 6.8, PySide enforces a macOS 12 minimum on wheels.
+min_os_version = "12.0"
+requires = [
+    "std-nslog~=1.0.3",
+]
+
+[tool.briefcase.app.projspecbriefcase.linux]
+requires = [
+]
+
+[tool.briefcase.app.projspecbriefcase.linux.system.debian]
+system_requires = [
+]
+
+system_runtime_requires = [
+    # Derived from https://doc.qt.io/qt-6/linux-requirements.html
+    "libxext6",
+    "libxrender1",
+    "libx11-xcb1",
+    "libxkbcommon-x11-0",
+    "libxcb-image0",
+    "libxcb-cursor0",
+    "libxcb-shape0",
+    "libxcb-randr0",
+    "libxcb-xfixes0",
+    "libxcb-sync1",
+    "libxcb-icccm4",
+    "libxcb-keysyms1",
+    "libfontconfig1",
+    "libsm6",
+    "libice6",
+    "libglib2.0-0",
+    "libgl1",
+    "libegl1",
+    "libdbus-1-3",
+]
+
+[tool.briefcase.app.projspecbriefcase.linux.system.rhel]
+system_requires = [
+]
+
+system_runtime_requires = [
+    "qt6-qtbase-gui",
+]
+
+[tool.briefcase.app.projspecbriefcase.linux.system.suse]
+system_requires = [
+]
+
+system_runtime_requires = [
+    "libgthread-2_0-0",
+    "libQt6Gui6",
+]
+
+[tool.briefcase.app.projspecbriefcase.linux.system.arch]
+system_requires = [
+]
+
+system_runtime_requires = [
+    "qt6-base",
+]
+
+[tool.briefcase.app.projspecbriefcase.linux.appimage]
+manylinux = "manylinux_2_28"
+
+system_requires = [
+# ?? FIXME
+]
+
+linuxdeploy_plugins = [
+]
+
+[tool.briefcase.app.projspecbriefcase.linux.flatpak]
+flatpak_runtime = "org.kde.Platform"
+flatpak_runtime_version = "6.9"
+flatpak_sdk = "org.kde.Sdk"
+
+[tool.briefcase.app.projspecbriefcase.windows]
+requires = [
+]
+
+# Mobile deployments
+[tool.briefcase.app.projspecbriefcase.iOS]
+supported = false
+
+[tool.briefcase.app.projspecbriefcase.android]
+supported = false
+
+# Web deployments
+[tool.briefcase.app.projspecbriefcase.web]
+supported = false

projspecbriefcase/src/projspecbriefcase/__main__.py

@@ -0,0 +1,5 @@
+from projspec.qtapp.main import main
+
+
+if __name__ == "__main__":
+    main()

src/projspec/qtapp/main.py

@@ -27,11 +27,11 @@
 from projspec.utils import class_infos
 
 try:
-    from PyQt5.QtCore import QObject, QUrl, pyqtSignal, pyqtSlot
-    from PyQt5.QtGui import QIcon
-    from PyQt5.QtWebChannel import QWebChannel
-    from PyQt5.QtWebEngineWidgets import QWebEngineSettings, QWebEngineView
-    from PyQt5.QtWidgets import (
+    from PySide6.QtCore import QObject, QUrl, Signal, Slot
+    from PySide6.QtGui import QIcon
+    from PySide6.QtWebChannel import QWebChannel
+    from PySide6.QtWebEngineWidgets import QWebEngineView
+    from PySide6.QtWidgets import (
         QApplication,
         QFileDialog,
         QMainWindow,
@@ -41,13 +41,16 @@
     )
 
     qt = True
-except ImportError:
+except ImportError as e:
     # fallbacks to make this module importable and give a decent message
+    import traceback
+
     QObject = object
     QMainWindow = object
-    pyqtSignal = lambda *_: None
-    pyqtSlot = lambda *_: lambda *_: None
-    warnings.warn("PyQt5 not installed", ImportWarning)
+    Signal = lambda *_: None
+    Slot = lambda *_: lambda *_: None
+    print("Failed to import PySide6")
+    traceback.print_exc()
     qt = False
 
 from projspec.qtapp.views import get_panel_html
@@ -75,7 +78,7 @@ class JsBridge(QObject):
     slot dispatches on ``type``.
     """
 
-    from_python = pyqtSignal(str)  # JSON-encoded outbound message
+    from_python = Signal(str)  # JSON-encoded outbound message
 
     def __init__(self, parent: QObject | None = None) -> None:
         super().__init__(parent)
@@ -84,7 +87,7 @@ def __init__(self, parent: QObject | None = None) -> None:
     def set_handler(self, handler) -> None:
         self._handler = handler
 
-    @pyqtSlot(str)
+    @Slot(str)
     def handleMessage(self, message: str) -> None:
         try:
             data = json.loads(message)
@@ -117,38 +120,12 @@ def __init__(self) -> None:
         channel.registerObject("bridge", self._bridge)
         self._view.page().setWebChannel(channel)
 
-        # Qt WebEngine's default settings block a ``file://`` page from
-        # loading webfonts referenced by ``data:`` URIs in its CSS.
-        # Flipping these three switches tells Chromium to treat the page
-        # the same way it would an HTTP page so ``@font-face`` resolves.
-        settings = self._view.settings()
-        for attr in (
-            "LocalContentCanAccessRemoteUrls",
-            "LocalContentCanAccessFileUrls",
-            "ErrorPageEnabled",
-        ):
-            constant = getattr(
-                QWebEngineSettings.WebAttribute
-                if hasattr(QWebEngineSettings, "WebAttribute")
-                else QWebEngineSettings,
-                attr,
-                None,
-            )
-            if constant is not None:
-                settings.setAttribute(constant, True)
-
         central = QWidget(self)
         layout = QVBoxLayout(central)
         layout.setContentsMargins(0, 0, 0, 0)
         layout.addWidget(self._view)
         self.setCentralWidget(central)
 
-        # Load the shared HTML UI.  We write to a temp file and ``setUrl``
-        # it rather than calling ``setHtml``: the latter gives the page an
-        # opaque origin that Chromium treats like a cross-origin document,
-        # breaking anything that touches the page origin (external links,
-        # relative anchors, future ``fetch`` calls).  Loading from a real
-        # ``file://`` URL sidesteps all of that.
         import tempfile
 
         tmp = tempfile.NamedTemporaryFile(
@@ -381,7 +358,7 @@ def _action_reveal_file(self, fn: str) -> None:
             return
         target = matches[0]
         if len(matches) > 1:
-            from PyQt5.QtWidgets import QInputDialog
+            from PySide6.QtWidgets import QInputDialog
 
             pick, ok = QInputDialog.getItem(
                 self,