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add scroll up/down flipper zero

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This commit is contained in:
Alexander Poletaev
2026-01-30 00:23:40 +03:00
parent 649a993779
commit a995b9e79a
3 changed files with 48 additions and 11 deletions
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23
obd2_client/src/flipper/pages.py
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@@ -5,9 +5,12 @@ from dataclasses import dataclass
from enum import Enum
import socket
import os
import logging
from .protocol import Page, PageType
_logger = logging.getLogger("obd2_client.pages")
class ActionID(Enum):
"""Action identifiers for menu items."""
@@ -31,7 +34,7 @@ class PageDefinition:
class PageManager:
"""Manages page content and navigation."""
MAX_VISIBLE_LINES = 5 # Flipper display limit
MAX_VISIBLE_LINES = 4 # Flipper display limit (5 lines overlap with footer)
def __init__(self):
self._pages: List[PageDefinition] = []
@@ -170,16 +173,21 @@ class PageManager:
True if scroll occurred
"""
if self._current_index not in range(len(self._pages)):
_logger.debug(f"scroll_up: invalid page index {self._current_index}")
return False
page_def = self._pages[self._current_index]
if page_def.page_type != PageType.INFO:
_logger.debug(f"scroll_up: page type is {page_def.page_type}, not INFO")
return False
current_offset = self._scroll_offsets.get(self._current_index, 0)
_logger.debug(f"scroll_up: current_offset={current_offset}")
if current_offset > 0:
self._scroll_offsets[self._current_index] = current_offset - 1
_logger.debug(f"scroll_up: new offset={current_offset - 1}")
return True
_logger.debug("scroll_up: already at top")
return False
def scroll_down(self) -> bool:
@@ -189,20 +197,27 @@ class PageManager:
True if scroll occurred
"""
if self._current_index not in range(len(self._pages)):
_logger.debug(f"scroll_down: invalid page index {self._current_index}")
return False
page_def = self._pages[self._current_index]
if page_def.page_type != PageType.INFO:
_logger.debug(f"scroll_down: page type is {page_def.page_type}, not INFO")
return False
# Get full page content to know total lines
page = page_def.generator(self)
max_offset = max(0, len(page.lines) - self.MAX_VISIBLE_LINES)
total_lines = len(page.lines)
max_offset = max(0, total_lines - self.MAX_VISIBLE_LINES)
current_offset = self._scroll_offsets.get(self._current_index, 0)
_logger.debug(f"scroll_down: total_lines={total_lines}, max_offset={max_offset}, current_offset={current_offset}")
if current_offset < max_offset:
self._scroll_offsets[self._current_index] = current_offset + 1
_logger.debug(f"scroll_down: new offset={current_offset + 1}")
return True
_logger.debug("scroll_down: already at bottom")
return False
def navigate_next(self) -> bool:
@@ -318,6 +333,7 @@ class PageManager:
if state:
# Get all values - returns dict of PID -> PIDValue
all_values = state.get_all()
_logger.debug(f"Live data: got {len(all_values)} PIDs from state")
if all_values:
# Priority order for display
@@ -339,8 +355,9 @@ class PageManager:
if not lines:
lines = ["Waiting for data...", "", "Polling active"]
else:
lines = ["No connection", "to OBD2", "", "Use Actions menu", "to reconnect"]
lines = ["No OBD2 connection", "", "Use Actions menu", "to reconnect"]
_logger.debug(f"Live data page: {len(lines)} lines")
return Page(PageType.INFO, "Live Data", lines)
def _generate_stats_page(self, mgr: "PageManager") -> Page: