From cf3d949369525f97b9f2bff25f5e659009bfcb5d Mon Sep 17 00:00:00 2001
From: Surferlul <lukasabaumann@gmail.com>
Date: Sat, 30 Jul 2022 23:03:15 +0200
Subject: [PATCH] Initial commit

---
 .gitignore                          |  2 +
 example.py                          | 43 +++++++++++++++
 native_ui/__init__.py               | 19 +++++++
 native_ui/abstract/__init__.py      | 82 +++++++++++++++++++++++++++++
 native_ui/abstract/application.py   | 14 +++++
 native_ui/abstract/button.py        | 45 ++++++++++++++++
 native_ui/abstract/container.py     | 23 ++++++++
 native_ui/abstract/window.py        | 11 ++++
 native_ui/impl/gnome/__init__.py    | 18 +++++++
 native_ui/impl/gnome/application.py | 42 +++++++++++++++
 native_ui/impl/gnome/button.py      | 25 +++++++++
 native_ui/impl/gnome/container.py   | 27 ++++++++++
 native_ui/impl/gnome/window.py      | 24 +++++++++
 13 files changed, 375 insertions(+)
 create mode 100644 example.py
 create mode 100644 native_ui/__init__.py
 create mode 100644 native_ui/abstract/__init__.py
 create mode 100644 native_ui/abstract/application.py
 create mode 100644 native_ui/abstract/button.py
 create mode 100644 native_ui/abstract/container.py
 create mode 100644 native_ui/abstract/window.py
 create mode 100644 native_ui/impl/gnome/__init__.py
 create mode 100644 native_ui/impl/gnome/application.py
 create mode 100644 native_ui/impl/gnome/button.py
 create mode 100644 native_ui/impl/gnome/container.py
 create mode 100644 native_ui/impl/gnome/window.py

diff --git a/.gitignore b/.gitignore
index b6e4761..b97131e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -127,3 +127,5 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+
+.idea/
diff --git a/example.py b/example.py
new file mode 100644
index 0000000..e4e5a63
--- /dev/null
+++ b/example.py
@@ -0,0 +1,43 @@
+import native_ui
+import sys
+
+native_ui.set_runtime_platform("gnome", "org.surferlul.native-ui.ExampleApp")
+from native_ui import native, abstract
+
+
+def main():
+    window = native.Window()
+    window.set(
+        child=None
+    )
+
+    app = native.Application(
+        window=native.Window(
+            child=native.Container(
+                layout=abstract.Layout.VERTICAL,
+            )
+        )
+    )
+    cont = app.window.child
+
+    def on_pressed(button, container):
+        print("Hello world")
+        container.call("add_child",
+                       native.Button(
+                           label="Hello",
+                           pressed=on_pressed,
+                           pressed_args=[container]
+                       ))
+
+    cont.add_child(native.Button(
+        label="Hello",
+        pressed=on_pressed,
+        pressed_args=[cont],
+    ))
+
+    app.build()
+    app.run(sys.argv)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/native_ui/__init__.py b/native_ui/__init__.py
new file mode 100644
index 0000000..7b68842
--- /dev/null
+++ b/native_ui/__init__.py
@@ -0,0 +1,19 @@
+from . import abstract
+
+import importlib
+
+
+native = abstract
+runtime_platform = None
+
+
+def set_runtime_platform(platform, *args, **kwargs):
+    global native
+    global runtime_platform
+    try:
+        native = importlib.import_module(f".{platform.lower()}", "native_ui.impl")
+        runtime_platform = platform.lower()
+        native.requirements(*args, **kwargs)
+    except ImportError:
+        raise ValueError(f"{platform} not implemented")
+
diff --git a/native_ui/abstract/__init__.py b/native_ui/abstract/__init__.py
new file mode 100644
index 0000000..aff9130
--- /dev/null
+++ b/native_ui/abstract/__init__.py
@@ -0,0 +1,82 @@
+import native_ui
+from typing import Callable, Any
+from collections import defaultdict
+from enum import Enum
+
+
+class Layout(Enum):
+    HORIZONTAL = 0
+    VERTICAL = 1
+
+
+def abstract_property(function: Callable):
+    def fget(self):
+        return getattr(self, f"_{function.__name__}")
+
+    def fset(self, value):
+        function(self, value)
+        self.changed(function.__name__)
+
+    return property(fget, fset)
+
+
+class Abstract(object):
+    def __init__(self, platform: str = None):
+        self.is_builder = False
+        if not hasattr(self, "supported_platforms"):
+            self.supported_platforms = set()
+        if platform is not None:
+            self.supported_platforms.add(platform)
+        self.native = None
+
+    def set(self, **kwargs):
+        for prop in kwargs:
+            self.set_property(prop, kwargs[prop])
+
+    def set_property(self, property_name: str, value: Any, index: int = None):
+        if index is None:
+            setattr(self, property_name, value)
+        else:
+            getattr(self, property_name)[index] = value
+        self.changed(property_name, index=index)
+
+    def call(self, property_name: str, *args, **kwargs):
+        res = getattr(self, property_name)(*args, **kwargs)
+        self.called(property_name, res, *args, **kwargs)
+        return res
+
+    def native_call(self, property_name: str, *args, **kwargs):
+        if native_ui.runtime_platform is None:
+            print("No runtime platform set")
+        if native_ui.runtime_platform not in self.supported_platforms:
+            print(f"Platform {native_ui.runtime_platform} not supported by {type(self).__name__}")
+        else:
+            return getattr(self, f"{property_name}_{native_ui.runtime_platform}")(*args, **kwargs)
+
+    def changed(self, property_name: str, index: int = None):
+        if self.native is not None:
+            self.native_call("changed", property_name, index)
+
+    def called(self, property_name: str, res: Any, *args, **kwargs):
+        if self.native is not None:
+            self.native_call("called", property_name, res, *args, **kwargs)
+
+    def build(self, *args, **kwargs):
+        if self.native is not None:
+            return self.native
+        return self.native_call("build", *args, **kwargs)
+
+    class __metaclass__(type):
+        __inheritors__ = defaultdict(list)
+
+        def __new__(meta, name, bases, dct):
+            klass = type.__new__(meta, name, bases, dct)
+            for base in klass.mro()[1:-1]:
+                meta.__inheritors__[base].append(klass)
+            return klass
+
+
+from .button import Button
+from .container import Container
+from .window import Window
+from .application import Application
diff --git a/native_ui/abstract/application.py b/native_ui/abstract/application.py
new file mode 100644
index 0000000..8a62361
--- /dev/null
+++ b/native_ui/abstract/application.py
@@ -0,0 +1,14 @@
+from . import Abstract, abstract_property, Window
+
+
+class Application(Abstract):
+    def __init__(self, window: Window = None, platform: str = None):
+        super().__init__(platform=platform)
+        self._window = window
+
+    @abstract_property
+    def window(self, value):
+        self._window = value
+
+    def run(self, *args, **kwargs):
+        self.native_call("run", *args, **kwargs)
diff --git a/native_ui/abstract/button.py b/native_ui/abstract/button.py
new file mode 100644
index 0000000..ea3b594
--- /dev/null
+++ b/native_ui/abstract/button.py
@@ -0,0 +1,45 @@
+from . import Abstract, abstract_property
+from typing import Callable
+
+
+class Button(Abstract):
+    def __init__(self,
+                 label: str = "",
+                 pressed: Callable = lambda button: None,
+                 pressed_args: list = None,
+                 pressed_kwargs: dict = None,
+                 platform: str = None):
+        super().__init__(platform=platform)
+        self._label = label
+        self._pressed = pressed
+        if pressed_args is None:
+            pressed_args = []
+        if pressed_kwargs is None:
+            pressed_kwargs = {}
+        self._pressed_args = pressed_args
+        self._pressed_kwargs = pressed_kwargs
+
+    @abstract_property
+    def label(self, value):
+        self._label = value
+
+    @abstract_property
+    def pressed(self, value):
+        self._pressed = value
+
+    @abstract_property
+    def pressed_args(self, value):
+        self._pressed_args = value
+
+    def add_pressed_arg(self, value):
+        self._pressed_args.append(value)
+
+    @abstract_property
+    def pressed_kwargs(self, value):
+        self._pressed_kwargs = value
+
+    def set_pressed_kwarg(self, key, value):
+        self._pressed_kwargs[key] = value
+
+    def press(self, *args, **kwargs):
+        self.call("pressed", *args, *self._pressed_args, **kwargs, **self._pressed_kwargs)
diff --git a/native_ui/abstract/container.py b/native_ui/abstract/container.py
new file mode 100644
index 0000000..d5beb65
--- /dev/null
+++ b/native_ui/abstract/container.py
@@ -0,0 +1,23 @@
+from . import Abstract, Layout, abstract_property
+
+
+class Container(Abstract):
+    def __init__(self, layout: Layout = Layout.HORIZONTAL, children: list = None, platform: str = None):
+        super().__init__(platform=platform)
+        if children is None:
+            children = []
+        self._children = children
+        self._layout = layout
+
+    @abstract_property
+    def layout(self, value):
+        self._layout = value
+
+    def get_children(self):
+        return self._children
+
+    def add_child(self, child):
+        self._children.append(child)
+
+    def pop_child(self, index):
+        return self._children.pop(index)
diff --git a/native_ui/abstract/window.py b/native_ui/abstract/window.py
new file mode 100644
index 0000000..29a997c
--- /dev/null
+++ b/native_ui/abstract/window.py
@@ -0,0 +1,11 @@
+from . import Abstract, abstract_property
+
+
+class Window(Abstract):
+    def __init__(self, child: Abstract = None, platform: str = None):
+        super().__init__(platform=platform)
+        self._child = child
+
+    @abstract_property
+    def child(self, value):
+        self._child = value
diff --git a/native_ui/impl/gnome/__init__.py b/native_ui/impl/gnome/__init__.py
new file mode 100644
index 0000000..2bc16e2
--- /dev/null
+++ b/native_ui/impl/gnome/__init__.py
@@ -0,0 +1,18 @@
+import gi
+
+gi.require_version('Gtk', '4.0')
+gi.require_version('Adw', '1')
+from gi.repository import Gtk, Adw
+
+application_id = None
+
+
+def requirements(app_id: str):
+    global application_id
+    application_id = app_id
+
+
+from .button import Button
+from .container import Container
+from .window import Window
+from .application import Application
diff --git a/native_ui/impl/gnome/application.py b/native_ui/impl/gnome/application.py
new file mode 100644
index 0000000..1d46726
--- /dev/null
+++ b/native_ui/impl/gnome/application.py
@@ -0,0 +1,42 @@
+from native_ui import abstract
+from . import Adw
+from pathlib import Path
+from typing import Any
+from .. import gnome
+
+platform = Path(__file__).parent.name
+
+
+class Application(abstract.Application):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs, platform=platform)
+
+    def changed_gnome(self, property_name: str, index: int = None):
+        pass
+
+    def called_gnome(self, property_name: str, res: Any, *args, **kwargs):
+        pass
+
+    def build_gnome(self):
+        class GnomeApp(Adw.Application):
+            def __init__(self, **kwargs):
+                super().__init__(**kwargs)
+                self.connect('activate', self.on_activate)
+                self.abstract_window = None
+                self.window = None
+
+            def on_activate(self, app):
+                if self.window is None:
+                    if self.abstract_window is not None:
+                        self.window = self.abstract_window.build(app)
+                    else:
+                        return
+                self.window.present()
+
+        self.native = GnomeApp(application_id=gnome.application_id)
+        if self.window is not None:
+            self.native.abstract_window = self.window
+        return self.native
+
+    def run_gnome(self, *args, **kwargs):
+        self.native.run(*args, **kwargs)
diff --git a/native_ui/impl/gnome/button.py b/native_ui/impl/gnome/button.py
new file mode 100644
index 0000000..1964433
--- /dev/null
+++ b/native_ui/impl/gnome/button.py
@@ -0,0 +1,25 @@
+from native_ui import abstract
+from . import Gtk
+from pathlib import Path
+from typing import Any
+
+platform = Path(__file__).parent.name
+
+
+class Button(abstract.Button):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs, platform=platform)
+
+    def changed_gnome(self, property_name: str, index: int = None):
+        pass
+
+    def called_gnome(self, property_name: str, res: Any, *args, **kwargs):
+        pass
+
+    def clicked(self, _native_button):
+        self.call("press", self)
+
+    def build_gnome(self):
+        self.native = Gtk.Button(label=self.label)
+        self.native.connect('clicked', self.clicked)
+        return self.native
\ No newline at end of file
diff --git a/native_ui/impl/gnome/container.py b/native_ui/impl/gnome/container.py
new file mode 100644
index 0000000..6ca94cc
--- /dev/null
+++ b/native_ui/impl/gnome/container.py
@@ -0,0 +1,27 @@
+from native_ui import abstract
+from . import Gtk
+from pathlib import Path
+from typing import Any
+
+platform = Path(__file__).parent.name
+
+
+class Container(abstract.Container):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs, platform=platform)
+
+    def changed_gnome(self, property_name: str, index: int = None):
+        pass
+
+    def called_gnome(self, property_name: str, res: Any, *args, **kwargs):
+        if property_name == "add_child":
+            self.native.append(args[0].build())
+
+    def build_gnome(self):
+        orientation = Gtk.Orientation.VERTICAL
+        if self.layout == abstract.Layout.HORIZONTAL:
+            orientation = Gtk.Orientation.HORIZONTAL
+        self.native = Gtk.Box(orientation=orientation)
+        for child in self.call("get_children"):
+            self.native.append(child.build())
+        return self.native
\ No newline at end of file
diff --git a/native_ui/impl/gnome/window.py b/native_ui/impl/gnome/window.py
new file mode 100644
index 0000000..efc3e85
--- /dev/null
+++ b/native_ui/impl/gnome/window.py
@@ -0,0 +1,24 @@
+from native_ui import abstract
+from . import Gtk
+from pathlib import Path
+from typing import Any
+
+platform = Path(__file__).parent.name
+
+
+class Window(abstract.Window):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs, platform=platform)
+
+    def changed_gnome(self, property_name: str, index: int = None):
+        if "property_name" == "child":
+            self.native.set_child(self.child.build())
+
+    def called_gnome(self, property_name: str, res: Any, *args, **kwargs):
+        pass
+
+    def build_gnome(self, app: abstract.Application = None):
+        self.native = Gtk.ApplicationWindow(application=app)
+        if self.child is not None:
+            self.native.set_child(self.child.build())
+        return self.native
\ No newline at end of file