2026-01-09 11:20:46 +00:00
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"""Tab and frame orchestration stubs."""
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from typing import Optional
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2026-01-09 12:31:48 +00:00
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import logging
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2026-01-09 11:20:46 +00:00
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from ..network.url import URL
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2026-01-09 13:11:46 +00:00
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from ..network import http
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from ..parser.html import parse_html, Element
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2026-01-09 11:20:46 +00:00
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class Frame:
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def __init__(self, tab: "Tab", parent_frame=None, frame_element=None):
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self.tab = tab
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self.parent_frame = parent_frame
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self.frame_element = frame_element
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self.document: Optional[Element] = None
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def load(self, url: URL, payload: Optional[bytes] = None):
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"""Fetch and parse the URL content."""
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try:
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status, content_type, body = http.request(url, payload)
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if status == 200:
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# Decode response
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text = body.decode('utf-8', errors='replace')
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# Parse HTML
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self.document = parse_html(text)
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self.tab.current_url = url
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else:
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# Error handling - show error page
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error_html = f"<html><body>Error {status}: Failed to load {url}</body></html>"
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self.document = parse_html(error_html)
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except Exception as e:
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# Network error - show error page
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error_html = f"<html><body>Network Error: {e}</body></html>"
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self.document = parse_html(error_html)
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logging.getLogger("bowser.tab").error(f"Failed to load {url}: {e}")
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class Tab:
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def __init__(self, browser: "Browser", tab_height: int = 40):
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self.browser = browser
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self.tab_height = tab_height
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self.current_url: Optional[URL] = None
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self.main_frame = Frame(self)
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self.history: list[URL] = []
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self.history_index: int = -1
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def load(self, url: URL, payload: Optional[bytes] = None):
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# push into history (truncate forward)
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if self.history_index < len(self.history) - 1:
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self.history = self.history[: self.history_index + 1]
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self.history.append(url)
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self.history_index += 1
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self.browser._log(f"Tab load: {url}", logging.INFO)
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self.main_frame.load(url, payload)
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def go_back(self) -> bool:
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if self.history_index > 0:
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self.history_index -= 1
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url = self.history[self.history_index]
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self.browser._log("Tab go_back", logging.DEBUG)
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self.main_frame.load(url)
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return True
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return False
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def go_forward(self) -> bool:
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if self.history_index < len(self.history) - 1:
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self.history_index += 1
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url = self.history[self.history_index]
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self.browser._log("Tab go_forward", logging.DEBUG)
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self.main_frame.load(url)
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return True
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return False
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def reload(self) -> bool:
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if 0 <= self.history_index < len(self.history):
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url = self.history[self.history_index]
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self.browser._log("Tab reload", logging.DEBUG)
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self.main_frame.load(url)
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return True
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return False
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@property
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def title(self) -> str:
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if self.current_url is None:
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return "New Tab"
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return str(self.current_url)
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