# -*- coding: utf-8 -*- """ (C) 2014-2018 Roman Sirokov and contributors Licensed under BSD license http://github.com/r0x0r/pywebview/ """ import os import re import sys import platform from .js import api, npo default_html = '' def base_uri(relative_path=''): """ Get absolute path to resource, works for dev and for PyInstaller """ try: # PyInstaller creates a temp folder and stores path in _MEIPASS base_path = sys._MEIPASS except Exception: if 'pytest' in sys.modules: for arg in reversed(sys.argv): path = os.path.realpath(arg) if os.path.exists(path): base_path = path if os.path.isdir(path) else os.path.dirname(path) break else: base_path = os.path.dirname(os.path.realpath(sys.argv[0])) if not os.path.exists(base_path): raise ValueError('Path %s does not exist' % base_path) return 'file://%s' % os.path.join(base_path, relative_path) def convert_string(string): if sys.version < '3': return unicode(string) else: return str(string) def parse_file_type(file_type): ''' :param file_type: file type string 'description (*.file_extension1;*.file_extension2)' as required by file filter in create_file_dialog :return: (description, file extensions) tuple ''' valid_file_filter = r'^([\w ]+)$(\*(?:\.(?:\w+|\*))*(?:;\*\.\w+)*)$$' match = re.search(valid_file_filter, file_type) if match: return match.group(1).rstrip(), match.group(2) else: raise ValueError('{0} is not a valid file filter'.format(file_type)) def parse_api_js(api_instance): func_list = [str(f) for f in dir(api_instance) if callable(getattr(api_instance, f)) and str(f)[0] != '_'] js_code = npo.src + api.src % func_list return js_code def escape_string(string): return string\ .replace('\\', '\\\\') \ .replace('"', r'\"') \ .replace('\n', r'\n')\ .replace('\r', r'\r') def transform_url(url): if url and ':' not in url: return base_uri(url) else: return url def make_unicode(string): """ Python 2 and 3 compatibility function that converts a string to Unicode. In case of Unicode, the string is returned unchanged :param string: input string :return: Unicode string """ if sys.version < '3' and isinstance(string, str): return unicode(string.decode('utf-8')) return string def escape_line_breaks(string): return string.replace('\\n', '\\\\n').replace('\\r', '\\\\r') def inject_base_uri(content, base_uri): pattern = '<%s(?:[\s]+[^>]*|)>' base_tag = '' % base_uri match = re.search(pattern % 'base', content) if match: return content match = re.search(pattern % 'head', content) if match: tag = match.group() return content.replace(tag, tag + base_tag) match = re.search(pattern % 'html', content) if match: tag = match.group() return content.replace(tag, tag + base_tag) match = re.search(pattern % 'body', content) if match: tag = match.group() return content.replace(tag, base_tag + tag) return base_tag + content def interop_dll_path(): dll_name = 'WebBrowserInterop.x64.dll' if platform.architecture()[0] == '64bit' else 'WebBrowserInterop.x86.dll' # Unfrozen path dll_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'lib', dll_name) if os.path.exists(dll_path): return dll_path # Frozen path, dll in the same dir as the executable dll_path = os.path.join(os.path.dirname(os.path.realpath(sys.argv[0])), dll_name) if os.path.exists(dll_path): return dll_path try: # Frozen path packed as onefile dll_path = os.path.join(sys._MEIPASS, dll_name) if os.path.exists(dll_path): return dll_path except Exception: pass raise Exception('Cannot find WebBrowserInterop.dll')