clan-app: changed webui to webview lib

pkgs/clan-app/clan_app/deps/webview/_webview_ffi.py

@@ -0,0 +1,134 @@
+import ctypes
+import sys
+import os
+import platform
+import urllib.request
+from pathlib import Path
+from ctypes import c_int, c_char_p, c_void_p, CFUNCTYPE
+import ctypes.util
+
+def _encode_c_string(s: str) -> bytes:
+    return s.encode("utf-8")
+
+def _get_webview_version():
+    """Get webview version from environment variable or use default"""
+    return os.getenv("WEBVIEW_VERSION", "0.8.1")
+
+def _get_lib_names():
+    """Get platform-specific library names."""
+    system = platform.system().lower()
+    machine = platform.machine().lower()
+    
+    if system == "windows":
+        if machine == "amd64" or machine == "x86_64":
+            return ["webview.dll", "WebView2Loader.dll"]
+        elif machine == "arm64":
+            raise Exception("arm64 is not supported on Windows")
+    elif system == "darwin":
+        if machine == "arm64":
+            return ["libwebview.aarch64.dylib"]
+        else:
+            return ["libwebview.x86_64.dylib"]
+    else:  # linux
+        return ["libwebview.so"]
+
+def _get_download_urls():
+    """Get the appropriate download URLs based on the platform."""
+    version = _get_webview_version()
+    return [f"https://github.com/webview/webview_deno/releases/download/{version}/{lib_name}" 
+            for lib_name in _get_lib_names()]
+
+def _be_sure_libraries():
+    """Ensure libraries exist and return paths."""
+    if getattr(sys, 'frozen', False):
+        if hasattr(sys, '_MEIPASS'):
+            base_dir = Path(sys._MEIPASS)
+        else:
+            base_dir = Path(sys.executable).parent / '_internal'
+    else:
+        base_dir = Path(__file__).parent
+    
+    lib_dir = base_dir / "lib"
+    lib_names = _get_lib_names()
+    lib_paths = [lib_dir / lib_name for lib_name in lib_names]
+    
+    # Check if any library is missing
+    missing_libs = [path for path in lib_paths if not path.exists()]
+    if not missing_libs:
+        return lib_paths
+
+    # Download missing libraries
+    download_urls = _get_download_urls()
+    system = platform.system().lower()
+    
+    lib_dir.mkdir(parents=True, exist_ok=True)
+    
+    for url, lib_path in zip(download_urls, lib_paths):
+        if lib_path.exists():
+            continue
+            
+        print(f"Downloading library from {url}")
+        try:
+            req = urllib.request.Request(
+                url,
+                headers={'User-Agent': 'Mozilla/5.0'}
+            )
+            with urllib.request.urlopen(req) as response, open(lib_path, 'wb') as out_file:
+                out_file.write(response.read())
+        except Exception as e:
+            raise RuntimeError(f"Failed to download library: {e}")
+    
+    return lib_paths
+
+class _WebviewLibrary:
+    def __init__(self):
+        lib_names=_get_lib_names()
+        try:
+            library_path = ctypes.util.find_library(lib_names[0])
+            if not library_path:
+                library_paths = _be_sure_libraries()
+            self.lib = ctypes.cdll.LoadLibrary(str(library_paths[0]))
+        except Exception as e:
+            print(f"Failed to load webview library: {e}")
+            raise
+        # Define FFI functions
+        self.webview_create = self.lib.webview_create
+        self.webview_create.argtypes = [c_int, c_void_p]
+        self.webview_create.restype = c_void_p
+
+        self.webview_destroy = self.lib.webview_destroy
+        self.webview_destroy.argtypes = [c_void_p]
+
+        self.webview_run = self.lib.webview_run
+        self.webview_run.argtypes = [c_void_p]
+
+        self.webview_terminate = self.lib.webview_terminate
+        self.webview_terminate.argtypes = [c_void_p]
+
+        self.webview_set_title = self.lib.webview_set_title
+        self.webview_set_title.argtypes = [c_void_p, c_char_p]
+
+        self.webview_set_size = self.lib.webview_set_size
+        self.webview_set_size.argtypes = [c_void_p, c_int, c_int, c_int]
+
+        self.webview_navigate = self.lib.webview_navigate
+        self.webview_navigate.argtypes = [c_void_p, c_char_p]
+
+        self.webview_init = self.lib.webview_init
+        self.webview_init.argtypes = [c_void_p, c_char_p]
+
+        self.webview_eval = self.lib.webview_eval
+        self.webview_eval.argtypes = [c_void_p, c_char_p]
+
+        self.webview_bind = self.lib.webview_bind
+        self.webview_bind.argtypes = [c_void_p, c_char_p, c_void_p, c_void_p]
+
+        self.webview_unbind = self.lib.webview_unbind
+        self.webview_unbind.argtypes = [c_void_p, c_char_p]
+
+        self.webview_return = self.lib.webview_return
+        self.webview_return.argtypes = [c_void_p, c_char_p, c_int, c_char_p]
+
+        self.CFUNCTYPE = CFUNCTYPE
+
+_webview_lib = _WebviewLibrary()

pkgs/clan-app/clan_app/deps/webview/webview.py

@@ -0,0 +1,92 @@
+from enum import IntEnum
+from typing import Optional, Callable, Any
+import json
+import ctypes
+from ._webview_ffi import _webview_lib, _encode_c_string
+
+class SizeHint(IntEnum):
+    NONE = 0
+    MIN = 1
+    MAX = 2
+    FIXED = 3
+
+class Size:
+    def __init__(self, width: int, height: int, hint: SizeHint):
+        self.width = width
+        self.height = height
+        self.hint = hint
+
+class Webview:
+    def __init__(self, debug: bool = False, size: Optional[Size] = None, window: Optional[int] = None):
+        self._handle = _webview_lib.webview_create(int(debug), window)
+        self._callbacks = {}
+
+        if size:
+            self.size = size
+
+    @property
+    def size(self) -> Size:
+        return self._size
+
+    @size.setter
+    def size(self, value: Size):
+        _webview_lib.webview_set_size(self._handle, value.width, value.height, value.hint)
+        self._size = value
+
+    @property
+    def title(self) -> str:
+        return self._title
+
+    @title.setter
+    def title(self, value: str):
+        _webview_lib.webview_set_title(self._handle, _encode_c_string(value))
+        self._title = value
+
+    def destroy(self):
+        for name in list(self._callbacks.keys()):
+            self.unbind(name)
+        _webview_lib.webview_terminate(self._handle)
+        _webview_lib.webview_destroy(self._handle)
+        self._handle = None
+
+    def navigate(self, url: str):
+        _webview_lib.webview_navigate(self._handle, _encode_c_string(url))
+
+    def run(self):
+        _webview_lib.webview_run(self._handle)
+        self.destroy()
+
+    def bind(self, name: str, callback: Callable[..., Any]):
+        def wrapper(seq: bytes, req: bytes, arg: int):
+            args = json.loads(req.decode())
+            try:
+                result = callback(*args)
+                success = True
+            except Exception as e:
+                result = str(e)
+                success = False
+            self.return_(seq.decode(), 0 if success else 1, json.dumps(result))
+
+        c_callback = _webview_lib.CFUNCTYPE(None, ctypes.c_char_p, ctypes.c_char_p, ctypes.c_void_p)(wrapper)
+        self._callbacks[name] = c_callback
+        _webview_lib.webview_bind(self._handle, _encode_c_string(name), c_callback, None)
+
+    def unbind(self, name: str):
+        if name in self._callbacks:
+            _webview_lib.webview_unbind(self._handle, _encode_c_string(name))
+            del self._callbacks[name]
+
+    def return_(self, seq: str, status: int, result: str):
+        _webview_lib.webview_return(self._handle, _encode_c_string(seq), status, _encode_c_string(result))
+
+    def eval(self, source: str):
+        _webview_lib.webview_eval(self._handle, _encode_c_string(source))
+
+    def init(self, source: str):
+        _webview_lib.webview_init(self._handle, _encode_c_string(source))
+
+if __name__ == "__main__":
+    wv = Webview()
+    wv.title = "Hello, World!"
+    wv.navigate("https://www.google.com")
+    wv.run()