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import json
from enum import Enum
from typing import Any, Dict, Optional, Union
from webview.util import css_to_camel, escape_quotes
class DOMPropType(Enum):
Style = 1
Attribute = 2
class PropsDict:
def __init__(self, element, type: DOMPropType, props: Optional[Dict[str, Any]] = None):
self.__element = element
self.__type = type
if not props:
return
if type == DOMPropType.Style:
converted_style = json.dumps({css_to_camel(key): value for key, value in props.items()})
self.__element._window.evaluate_js(f"""
{self.__element._query_command};
var styles = JSON.parse('{converted_style}');
for (var key in styles) {{
element.style[key] = styles[key];
}}
""")
elif type == DOMPropType.Attribute:
converted_attributes = json.dumps({
escape_quotes(key): escape_quotes(value) for key, value in props.items()
})
self.__element._window.evaluate_js(f"""
{self.__element._query_command};
var attributes = JSON.parse('{converted_attributes}');
for (var key in attributes) {{
if (key === 'data-pywebview-id') {{
continue;
}} else if (attributes[key] === null || attributes[key] === undefined) {{
element.removeAttribute(key);
}} else {{
element.setAttribute(key, attributes[key]);
}}
}};
""")
def __getitem__(self, key):
data = self.__get_data()
return data.get(key)
def __setitem__(self, key, value):
if self.__type == DOMPropType.Style:
self.__set_style({key: value})
elif self.__type == DOMPropType.Attribute:
self.__set_attribute({key: value})
def __delitem__(self, key):
if self.__type == DOMPropType.Style:
self.__set_style({key: ''})
elif self.__type == DOMPropType.Attribute:
self.__set_attribute({key: None})
def __contains__(self, key):
data = self.__get_data()
return key in data
def keys(self):
data = self.__get_data()
return data.keys()
def values(self):
data = self.__get_data()
return data.values()
def items(self):
data = self.__get_data()
return data.items()
def get(self, key, default=None):
data = self.__get_data()
return data.get(key, default)
def clear(self):
data = self.__get_data()
for key in data.keys():
data[key] = '' if self.__type == DOMPropType.Style else None
if self.__type == DOMPropType.Style:
self.__set_style(data)
elif self.__type == DOMPropType.Attribute:
self.__set_attribute(data)
def copy(self):
return self.__get_data()
def update(self, other_dict: Dict[str, Union[str, int, float, None]]):
if self.__type == DOMPropType.Style:
self.__set_style(other_dict)
elif self.__type == DOMPropType.Attribute:
self.__set_attribute(other_dict)
def pop(self, key, default=None):
data = self.__get_data()
return data.pop(key, default)
def popitem(self):
data = self.__get_data()
return data.popitem()
def __str__(self):
data = self.__get_data()
return str(data)
def __repr__(self):
data = self.__get_data()
return repr(data)
def __get_data(self) -> Dict[str, Any]:
if self.__type == DOMPropType.Style:
return self.__get_style()
elif self.__type == DOMPropType.Attribute:
return self.__get_attributes()
def __get_attributes(self) -> Dict[str, Any]:
return self.__element._window.evaluate_js(f"""
{self.__element._query_command};
var attributes = element.attributes;
var result = {{}};
for (var i = 0; i < attributes.length; i++) {{
if (attributes[i].name === 'data-pywebview-id') {{
continue;
}}
result[attributes[i].name] = attributes[i].value;
}}
result
""")
def __set_attribute(self, props: Dict[str, Any]):
self.__element._window.evaluate_js(f"""
{self.__element._query_command};
var values = JSON.parse('{json.dumps(props)}');
for (var key in values) {{
var value = values[key];
if (value === null || value === undefined) {{
element.removeAttribute(key);
}} else {{
element.setAttribute(key, value);
}}
}}
""")
def __get_style(self) -> Dict[str, Any]:
return self.__element._window.evaluate_js(f"""
{self.__element._query_command};
var styles = window.getComputedStyle(element);
var computedStyles = {{}};
for (var i = 0; i < styles.length; i++) {{
var propertyName = styles[i];
var propertyValue = styles.getPropertyValue(propertyName);
if (propertyValue !== '') {{
computedStyles[propertyName] = propertyValue;
}}
}}
computedStyles;
""")
def __set_style(self, style: Dict[str, Any]):
converted_style = json.dumps({css_to_camel(key): value for key, value in style.items()})
self.__element._window.evaluate_js(f"""
{self.__element._query_command};
var styles = JSON.parse('{converted_style}');
for (var key in styles) {{
var value = styles[key];
element.style[key] = value;
}}
""")
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