import re
import pyray as rl
from dataclasses import dataclass
from enum import Enum
from typing import Any
from openpilot.system.ui.lib.application import gui_app, FontWeight
from openpilot.system.ui.lib.wrap_text import wrap_text
from openpilot.system.ui.lib.scroll_panel import GuiScrollPanel
from openpilot.system.ui.lib.widget import Widget, DialogResult
from openpilot.system.ui.lib.button import gui_button, ButtonStyle
class ElementType(Enum):
H1 = "h1"
H2 = "h2"
H3 = "h3"
H4 = "h4"
H5 = "h5"
H6 = "h6"
P = "p"
BR = "br"
@dataclass
class HtmlElement:
type: ElementType
content: str
font_size: int
font_weight: FontWeight
color: rl.Color
margin_top: int
margin_bottom: int
line_height: float = 1.2
class HtmlRenderer(Widget):
def __init__(self, file_path: str):
self.elements: list[HtmlElement] = []
self._normal_font = gui_app.font(FontWeight.NORMAL)
self._bold_font = gui_app.font(FontWeight.BOLD)
self._scroll_panel = GuiScrollPanel()
self.styles: dict[ElementType, dict[str, Any]] = {
ElementType.H1: {"size": 68, "weight": FontWeight.BOLD, "color": rl.BLACK, "margin_top": 20, "margin_bottom": 16},
ElementType.H2: {"size": 60, "weight": FontWeight.BOLD, "color": rl.BLACK, "margin_top": 24, "margin_bottom": 12},
ElementType.H3: {"size": 52, "weight": FontWeight.BOLD, "color": rl.BLACK, "margin_top": 20, "margin_bottom": 10},
ElementType.H4: {"size": 48, "weight": FontWeight.BOLD, "color": rl.BLACK, "margin_top": 16, "margin_bottom": 8},
ElementType.H5: {"size": 44, "weight": FontWeight.BOLD, "color": rl.BLACK, "margin_top": 12, "margin_bottom": 6},
ElementType.H6: {"size": 40, "weight": FontWeight.BOLD, "color": rl.BLACK, "margin_top": 10, "margin_bottom": 4},
ElementType.P: {"size": 38, "weight": FontWeight.NORMAL, "color": rl.Color(40, 40, 40, 255), "margin_top": 8, "margin_bottom": 12},
ElementType.BR: {"size": 0, "weight": FontWeight.NORMAL, "color": rl.BLACK, "margin_top": 0, "margin_bottom": 12},
}
self.parse_html_file(file_path)
def parse_html_file(self, file_path: str) -> None:
with open(file_path, encoding='utf-8') as file:
content = file.read()
self.parse_html_content(content)
def parse_html_content(self, html_content: str) -> None:
self.elements.clear()
# Remove HTML comments
html_content = re.sub(r'', '', html_content, flags=re.DOTALL)
# Remove DOCTYPE, html, head, body tags but keep their content
html_content = re.sub(r']*>', '', html_content)
html_content = re.sub(r'?(?:html|head|body)[^>]*>', '', html_content)
# Find all HTML elements
pattern = r'<(h[1-6]|p)(?:[^>]*)>(.*?)\1>|
'
matches = re.finditer(pattern, html_content, re.DOTALL | re.IGNORECASE)
for match in matches:
if match.group(0).lower().startswith('
tags
self._add_element(ElementType.BR, "")
else:
tag = match.group(1).lower()
content = match.group(2).strip()
# Clean up content - remove extra whitespace
content = re.sub(r'\s+', ' ', content)
content = content.strip()
if content: # Only add non-empty elements
element_type = ElementType(tag)
self._add_element(element_type, content)
def _add_element(self, element_type: ElementType, content: str) -> None:
style = self.styles[element_type]
element = HtmlElement(
type=element_type,
content=content,
font_size=style["size"],
font_weight=style["weight"],
color=style["color"],
margin_top=style["margin_top"],
margin_bottom=style["margin_bottom"],
)
self.elements.append(element)
def _render(self, rect: rl.Rectangle):
margin = 50
content_rect = rl.Rectangle(rect.x + margin, rect.y + margin, rect.width - (margin * 2), rect.height - (margin * 2))
button_height = 160
button_spacing = 20
scrollable_height = content_rect.height - button_height - button_spacing
scrollable_rect = rl.Rectangle(content_rect.x, content_rect.y, content_rect.width, scrollable_height)
total_height = self.get_total_height(int(scrollable_rect.width))
scroll_content_rect = rl.Rectangle(scrollable_rect.x, scrollable_rect.y, scrollable_rect.width, total_height)
scroll_offset = self._scroll_panel.handle_scroll(scrollable_rect, scroll_content_rect)
rl.begin_scissor_mode(int(scrollable_rect.x), int(scrollable_rect.y), int(scrollable_rect.width), int(scrollable_rect.height))
self._render_content(scrollable_rect, scroll_offset.y)
rl.end_scissor_mode()
button_width = (rect.width - 3 * 50) // 3
button_x = content_rect.x + (content_rect.width - button_width) / 2
button_y = content_rect.y + content_rect.height - button_height
button_rect = rl.Rectangle(button_x, button_y, button_width, button_height)
if gui_button(button_rect, "OK", button_style=ButtonStyle.PRIMARY) == 1:
return DialogResult.CONFIRM
return DialogResult.NO_ACTION
def _render_content(self, rect: rl.Rectangle, scroll_offset: float = 0) -> float:
current_y = rect.y + scroll_offset
padding = 20
content_width = rect.width - (padding * 2)
for element in self.elements:
if element.type == ElementType.BR:
current_y += element.margin_bottom
continue
current_y += element.margin_top
if current_y > rect.y + rect.height:
break
if element.content:
font = self._get_font(element.font_weight)
wrapped_lines = wrap_text(font, element.content, element.font_size, int(content_width))
for line in wrapped_lines:
if current_y < rect.y - element.font_size:
current_y += element.font_size * element.line_height
continue
if current_y > rect.y + rect.height:
break
rl.draw_text_ex(font, line, rl.Vector2(rect.x + padding, current_y), element.font_size, 0, rl.WHITE)
current_y += element.font_size * element.line_height
# Apply bottom margin
current_y += element.margin_bottom
return current_y - rect.y - scroll_offset # Return total content height
def get_total_height(self, content_width: int) -> float:
total_height = 0.0
padding = 20
usable_width = content_width - (padding * 2)
for element in self.elements:
if element.type == ElementType.BR:
total_height += element.margin_bottom
continue
total_height += element.margin_top
if element.content:
font = self._get_font(element.font_weight)
wrapped_lines = wrap_text(font, element.content, element.font_size, int(usable_width))
for _ in wrapped_lines:
total_height += element.font_size * element.line_height
total_height += element.margin_bottom
return total_height
def _get_font(self, weight: FontWeight):
if weight == FontWeight.BOLD:
return self._bold_font
return self._normal_font