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Toot-Mastodon-CLI-TUI-clien.../toot/tui/timeline.py
2024-04-13 08:28:28 +02:00

623 lines
23 KiB
Python

import logging
import math
import urwid
import webbrowser
from typing import List, Optional
from toot.tui import app
from toot.tui.richtext import html_to_widgets, url_to_widget
from toot.utils.datetime import parse_datetime, time_ago
from toot.utils.language import language_name
from toot.entities import Status
from toot.tui.scroll import Scrollable, ScrollBar
from toot.tui.utils import highlight_keys
from toot.tui.images import image_support_enabled, graphics_widget, can_render_pixels
from toot.tui.widgets import SelectableText, SelectableColumns, RoundedLineBox
logger = logging.getLogger("toot")
screen = urwid.raw_display.Screen()
class Timeline(urwid.Columns):
"""
Displays a list of statuses to the left, and status details on the right.
"""
signals = [
"close", # Close thread
"focus", # Focus changed
"next", # Fetch more statuses
"save", # Save current timeline
]
def __init__(
self,
tui: "app.TUI",
name: str,
statuses: List[Status],
focus: int = 0,
is_thread: bool = False
):
self.tui = tui
self.name = name
self.is_thread = is_thread
self.statuses = statuses
self.status_list = self.build_status_list(statuses, focus=focus)
self.can_render_pixels = can_render_pixels(self.tui.options.image_format)
try:
focused_status = statuses[focus]
except IndexError:
focused_status = None
self.status_details = StatusDetails(self, focused_status)
status_widget = self.wrap_status_details(self.status_details)
super().__init__([
("weight", 40, self.status_list),
("weight", 0, urwid.AttrWrap(urwid.SolidFill(""), "columns_divider")),
("weight", 60, status_widget),
])
def wrap_status_details(self, status_details: "StatusDetails") -> urwid.Widget:
"""Wrap StatusDetails widget with a scrollbar and footer."""
self.status_detail_scrollable = Scrollable(urwid.Padding(status_details, right=1))
return urwid.Padding(
urwid.Frame(
body=ScrollBar(
self.status_detail_scrollable,
thumb_char="\u2588",
trough_char="\u2591",
),
footer=self.get_option_text(status_details.status),
),
left=1
)
def build_status_list(self, statuses, focus):
items = [self.build_list_item(status) for status in statuses]
walker = urwid.SimpleFocusListWalker(items)
walker.set_focus(focus)
urwid.connect_signal(walker, "modified", self.modified)
return urwid.ListBox(walker)
def build_list_item(self, status):
item = StatusListItem(status, self.tui.options.relative_datetimes)
urwid.connect_signal(item, "click", lambda *args:
self.tui.show_context_menu(status))
return urwid.AttrMap(item, None, focus_map={
"status_list_account": "status_list_selected",
"status_list_timestamp": "status_list_selected",
"highlight": "status_list_selected",
"dim": "status_list_selected",
None: "status_list_selected",
})
def get_option_text(self, status: Optional[Status]) -> Optional[urwid.Text]:
if not status:
return None
poll = status.original.data.get("poll")
show_media = status.original.data["media_attachments"] and self.tui.options.media_viewer
options = [
"[A]ccount" if not status.is_mine else "",
"[B]oost",
"[D]elete" if status.is_mine else "",
"[E]dit" if status.is_mine else "",
"B[o]okmark",
"[F]avourite",
"[V]iew",
"[T]hread" if not self.is_thread else "",
"L[i]nks",
"[M]edia" if show_media else "",
"[R]eply",
"[P]oll" if poll and not poll["expired"] else "",
"So[u]rce",
"[Z]oom",
"Tra[n]slate" if self.tui.can_translate else "",
"Cop[y]",
"Help([?])",
]
options = "\n" + " ".join(o for o in options if o)
options = highlight_keys(options, "shortcut_highlight", "shortcut")
return urwid.Text(options)
def get_focused_status(self):
try:
return self.statuses[self.status_list.body.focus]
except TypeError:
return None
def get_focused_status_with_counts(self):
"""Returns a tuple of:
* focused status
* focused status' index in the status list
* length of the status list
"""
return (
self.get_focused_status(),
self.status_list.body.focus,
len(self.statuses),
)
def modified(self):
"""Called when the list focus switches to a new status"""
status, index, count = self.get_focused_status_with_counts()
if image_support_enabled:
clear_op = getattr(self.tui.screen, "clear_images", None)
# term-image's screen implementation has clear_images(),
# urwid's implementation does not.
# TODO: it would be nice not to check this each time thru
if callable(clear_op):
self.tui.screen.clear_images()
self.draw_status_details(status)
self._emit("focus")
def refresh_status_details(self):
"""Redraws the details of the focused status."""
status = self.get_focused_status()
pos = self.status_detail_scrollable.get_scrollpos()
self.draw_status_details(status)
self.status_detail_scrollable.set_scrollpos(pos)
def draw_status_details(self, status):
self.status_details = StatusDetails(self, status)
widget = self.wrap_status_details(self.status_details)
self.contents[2] = widget, ("weight", 60, False)
def keypress(self, size, key):
status = self.get_focused_status()
command = self._command_map[key]
if not status:
return super().keypress(size, key)
# If down is pressed on last status in list emit a signal to load more.
# TODO: Consider pre-loading statuses earlier
if command in [urwid.CURSOR_DOWN, urwid.CURSOR_PAGE_DOWN] \
and self.status_list.body.focus:
index = self.status_list.body.focus + 1
count = len(self.statuses)
if index >= count:
self._emit("next")
if key in ("a", "A"):
account_id = status.original.data["account"]["id"]
self.tui.show_account(account_id)
return
if key in ("b", "B"):
self.tui.async_toggle_reblog(self, status)
return
if key in ("c", "C"):
self.tui.show_compose()
return
if key in ("d", "D"):
if status.is_mine:
self.tui.show_delete_confirmation(status)
return
if key in ("e", "E"):
if status.is_mine:
self.tui.async_edit(status)
return
if key in ("f", "F"):
self.tui.async_toggle_favourite(self, status)
return
if key in ("m", "M"):
self.tui.show_media(status)
return
if key in ("q", "Q"):
self._emit("close")
return
if key == "esc" and self.is_thread:
self._emit("close")
return
if key in ("r", "R"):
self.tui.show_compose(status)
return
if key in ("s", "S"):
status.original.show_sensitive = True
self.refresh_status_details()
return
if key in ("o", "O"):
self.tui.async_toggle_bookmark(self, status)
return
if key in ("i", "I"):
self.tui.show_links(status)
return
if key in ("n", "N"):
if self.tui.can_translate:
self.tui.async_translate(self, status)
return
if key in ("t", "T"):
self.tui.show_thread(status)
return
if key in ("u", "U"):
self.tui.show_status_source(status)
return
if key in ("v", "V"):
if status.original.url:
webbrowser.open(status.original.url)
# force a screen refresh; necessary with console browsers
self.tui.clear_screen()
return
if key in ("e", "E"):
self._emit("save", status)
return
if key in ("z", "Z"):
self.tui.show_status_zoom(self.status_details)
return
if key in ("p", "P"):
poll = status.original.data.get("poll")
if poll and not poll["expired"]:
self.tui.show_poll(status)
return
if key in ("y", "Y"):
self.tui.copy_status(status)
return
return super().keypress(size, key)
def append_status(self, status):
self.statuses.append(status)
self.status_list.body.append(self.build_list_item(status))
def prepend_status(self, status):
self.statuses.insert(0, status)
self.status_list.body.insert(0, self.build_list_item(status))
def append_statuses(self, statuses):
for status in statuses:
self.append_status(status)
def get_status_index(self, id):
# TODO: This is suboptimal, consider a better way
for n, status in enumerate(self.statuses.copy()):
if status.id == id:
return n
raise ValueError("Status with ID {} not found".format(id))
def focus_status(self, status):
index = self.get_status_index(status.id)
self.status_list.body.set_focus(index)
def update_status(self, status):
"""Overwrite status in list with the new instance and redraw."""
index = self.get_status_index(status.id)
assert self.statuses[index].id == status.id # Sanity check
# Update internal status list
self.statuses[index] = status
# Redraw list item
self.status_list.body[index] = self.build_list_item(status)
# Redraw status details if status is focused
if index == self.status_list.body.focus:
self.draw_status_details(status)
def update_status_image(self, status, path, placeholder_index):
"""Replace image placeholder with image widget and redraw"""
index = self.get_status_index(status.id)
assert self.statuses[index].id == status.id # Sanity check
# get the image and replace the placeholder with a graphics widget
img = None
if hasattr(self, "images"):
try:
img = self.images[(str(hash(path)))]
except KeyError:
pass
if img:
try:
status.placeholders[placeholder_index]._set_original_widget(
graphics_widget(img, image_format=self.tui.options.image_format, corner_radius=10))
except IndexError:
# ignore IndexErrors.
pass
def remove_status(self, status):
index = self.get_status_index(status.id)
assert self.statuses[index].id == status.id # Sanity check
del self.statuses[index]
del self.status_list.body[index]
self.refresh_status_details()
class StatusDetails(urwid.Pile):
def __init__(self, timeline: Timeline, status: Optional[Status]):
self.status = status
self.timeline = timeline
if self.status:
self.status.placeholders = []
self.followed_accounts = timeline.tui.followed_accounts
self.options = timeline.tui.options
reblogged_by = status.author if status and status.reblog else None
widget_list = list(self.content_generator(status.original, reblogged_by)
if status else ())
return super().__init__(widget_list)
def image_widget(self, path, rows=None, aspect=None) -> urwid.Widget:
"""Returns a widget capable of displaying the image
path is required; URL to image
rows, if specfied, sets a fixed number of rows. Or:
aspect, if specified, calculates rows based on pane width
and the aspect ratio provided"""
if not rows:
if not aspect:
aspect = 3 / 2 # reasonable default
screen_rows = screen.get_cols_rows()[1]
if self.timeline.can_render_pixels:
# for pixel-rendered images,
# image rows should be 33% of the available screen
# but in no case fewer than 10
rows = max(10, math.floor(screen_rows * .33))
else:
# for cell-rendered images,
# use the max available columns
# and calculate rows based on the image
# aspect ratio
cols = math.floor(0.55 * screen.get_cols_rows()[0])
rows = math.ceil((cols / 2) / aspect)
# if the calculated rows are more than will
# fit on one screen, reduce to one screen of rows
rows = min(screen_rows - 6, rows)
# but in no case fewer than 10 rows
rows = max(rows, 10)
img = None
if hasattr(self.timeline, "images"):
try:
img = self.timeline.images[(str(hash(path)))]
except KeyError:
pass
if img:
return (urwid.BoxAdapter(
graphics_widget(img, image_format=self.timeline.tui.options.image_format, corner_radius=10), rows))
else:
placeholder = urwid.BoxAdapter(urwid.SolidFill(fill_char=" "), rows)
self.status.placeholders.append(placeholder)
if image_support_enabled():
self.timeline.tui.async_load_image(self.timeline, self.status, path, len(self.status.placeholders) - 1)
return placeholder
def author_header(self, reblogged_by):
avatar_url = self.status.original.data["account"]["avatar"]
if avatar_url and image_support_enabled():
aimg = self.image_widget(avatar_url, 2)
account_color = ("highlight" if self.status.original.author.account in
self.timeline.tui.followed_accounts else "account")
atxt = urwid.Pile([("pack", urwid.Text(("bold", self.status.original.author.display_name))),
("pack", urwid.Text((account_color, self.status.original.author.account)))])
if image_support_enabled():
columns = urwid.Columns([aimg, ("weight", 9999, atxt)], dividechars=1, min_width=5)
else:
columns = urwid.Columns([("weight", 9999, atxt)], dividechars=1, min_width=5)
return columns
def content_generator(self, status, reblogged_by):
if reblogged_by:
reblogger_name = (reblogged_by.display_name
if reblogged_by.display_name
else reblogged_by.username)
text = f"{reblogger_name} boosted"
yield urwid.Text(("dim", text))
yield ("pack", urwid.AttrMap(urwid.Divider("-"), "dim"))
yield self.author_header(reblogged_by)
yield ("pack", urwid.Divider())
if status.data["spoiler_text"]:
yield ("pack", urwid.Text(status.data["spoiler_text"]))
yield ("pack", urwid.Divider())
# Show content warning
if status.data["spoiler_text"] and not status.show_sensitive and not self.options.always_show_sensitive:
yield ("pack", urwid.Text(("content_warning", "Marked as sensitive. Press S to view.")))
else:
if status.data["spoiler_text"]:
yield ("pack", urwid.Text(("content_warning", "Marked as sensitive.")))
content = status.original.translation if status.original.show_translation else status.data["content"]
widgetlist = html_to_widgets(content)
for line in widgetlist:
yield (line)
media = status.data["media_attachments"]
if media:
for m in media:
yield ("pack", urwid.AttrMap(urwid.Divider("-"), "dim"))
yield ("pack", urwid.Text([("bold", "Media attachment"), " (", m["type"], ")"]))
if m["description"]:
yield ("pack", urwid.Text(m["description"]))
if m["url"]:
if m["url"].lower().endswith(('.jpg', '.jpeg', '.png', '.gif', '.svg', '.webp')):
yield urwid.Text("")
try:
aspect = float(m["meta"]["original"]["aspect"])
except Exception:
aspect = None
if image_support_enabled():
yield self.image_widget(m["url"], aspect=aspect)
yield urwid.Divider()
# video media may include a preview URL, show that as a fallback
elif m["preview_url"].lower().endswith(('.jpg', '.jpeg', '.png', '.gif', '.svg', '.webp')):
yield urwid.Text("")
try:
aspect = float(m["meta"]["small"]["aspect"])
except Exception:
aspect = None
if image_support_enabled():
yield self.image_widget(m["preview_url"], aspect=aspect)
yield urwid.Divider()
yield ("pack", url_to_widget(m["url"]))
poll = status.original.data.get("poll")
if poll:
yield ("pack", urwid.Divider())
yield ("pack", self.build_linebox(self.poll_generator(poll)))
card = status.data.get("card")
if card:
yield ("pack", urwid.Divider())
yield ("pack", self.build_linebox(self.card_generator(card)))
application = status.data.get("application") or {}
application = application.get("name")
yield ("pack", urwid.AttrWrap(urwid.Divider("-"), "dim"))
translated_from = (
language_name(status.original.translated_from)
if status.original.show_translation and status.original.translated_from
else None
)
visibility_colors = {
"public": "visibility_public",
"unlisted": "visibility_unlisted",
"private": "visibility_private",
"direct": "visibility_direct"
}
visibility = status.visibility.title()
visibility_color = visibility_colors.get(status.visibility, "dim")
yield ("pack", urwid.Text([
("status_detail_timestamp", f"{status.created_at.strftime('%Y-%m-%d %H:%M')} "),
("status_detail_timestamp",
f"(edited {status.edited_at.strftime('%Y-%m-%d %H:%M')}) " if status.edited_at else ""),
("status_detail_bookmarked" if status.bookmarked else "dim", "b "),
("dim", f"{status.data['replies_count']} "),
("highlight" if status.reblogged else "dim", f"{status.data['reblogs_count']} "),
("highlight" if status.favourited else "dim", f"{status.data['favourites_count']}"),
(visibility_color, f" · {visibility}"),
("highlight", f" · Translated from {translated_from} " if translated_from else ""),
("dim", f" · {application}" if application else ""),
]))
# Push things to bottom
yield ("weight", 1, urwid.BoxAdapter(urwid.SolidFill(" "), 1))
def build_linebox(self, contents):
contents = urwid.Pile(list(contents))
contents = urwid.Padding(contents, left=1, right=1)
return RoundedLineBox(contents)
def card_generator(self, card):
yield urwid.Text(("card_title", card["title"].strip()))
if card.get("author_name"):
yield urwid.Text(["by ", ("card_author", card["author_name"].strip())])
yield urwid.Text("")
if card["description"]:
yield urwid.Text(card["description"].strip())
yield urwid.Text("")
yield url_to_widget(card["url"])
if card["image"] and image_support_enabled():
if card["image"].lower().endswith(('.jpg', '.jpeg', '.png', '.gif', '.svg', '.webp')):
yield urwid.Text("")
try:
aspect = int(card["width"]) / int(card["height"])
except Exception:
aspect = None
yield self.image_widget(card["image"], aspect=aspect)
def poll_generator(self, poll):
for idx, option in enumerate(poll["options"]):
perc = (round(100 * option["votes_count"] / poll["votes_count"])
if poll["votes_count"] else 0)
if poll["voted"] and poll["own_votes"] and idx in poll["own_votes"]:
voted_for = ""
else:
voted_for = ""
yield urwid.Text(option["title"] + voted_for)
yield urwid.ProgressBar("", "poll_bar", perc)
status = "Poll · {} votes".format(poll["votes_count"])
if poll["expired"]:
status += " · Closed"
if poll["expires_at"]:
expires_at = parse_datetime(poll["expires_at"]).strftime("%Y-%m-%d %H:%M")
status += " · Closes on {}".format(expires_at)
yield urwid.Text(("dim", status))
class StatusListItem(SelectableColumns):
def __init__(self, status, relative_datetimes):
edited_at = status.original.edited_at
# TODO: hacky implementation to avoid creating conflicts for existing
# pull requests, refactor when merged.
created_at = (
time_ago(status.created_at).ljust(3, " ")
if relative_datetimes
else status.created_at.strftime("%Y-%m-%d %H:%M")
)
edited_flag = "*" if edited_at else " "
favourited = ("highlight", "") if status.original.favourited else " "
reblogged = ("highlight", "") if status.original.reblogged else " "
is_reblog = ("dim", "") if status.reblog else " "
is_reply = ("dim", "") if status.original.in_reply_to else " "
return super().__init__([
("pack", SelectableText(("status_list_timestamp", created_at), wrap="clip")),
("pack", urwid.Text(("status_list_timestamp", edited_flag))),
("pack", urwid.Text(" ")),
("pack", urwid.Text(favourited)),
("pack", urwid.Text(" ")),
("pack", urwid.Text(reblogged)),
("pack", urwid.Text(" ")),
urwid.Text(("status_list_account", status.original.account), wrap="clip"),
("pack", urwid.Text(is_reply)),
("pack", urwid.Text(is_reblog)),
("pack", urwid.Text(" ")),
])