506 lines
16 KiB
Python
506 lines
16 KiB
Python
# -*- coding: utf-8 -*-
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import webbrowser
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from toot import __version__, api
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from toot.exceptions import ConsoleError
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from toot.ui.parsers import parse_status
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from toot.ui.utils import draw_horizontal_divider, draw_lines
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from toot.wcstring import fit_text
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# Attempt to load curses, which is not available on windows
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try:
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import curses
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import curses.panel
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except ImportError:
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raise ConsoleError("Curses is not available on this platform")
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class Color:
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@classmethod
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def setup_palette(class_):
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curses.init_pair(1, curses.COLOR_WHITE, curses.COLOR_BLACK)
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curses.init_pair(2, curses.COLOR_BLUE, curses.COLOR_BLACK)
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curses.init_pair(3, curses.COLOR_GREEN, curses.COLOR_BLACK)
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curses.init_pair(4, curses.COLOR_YELLOW, curses.COLOR_BLACK)
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curses.init_pair(5, curses.COLOR_RED, curses.COLOR_BLACK)
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curses.init_pair(6, curses.COLOR_CYAN, curses.COLOR_BLACK)
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curses.init_pair(7, curses.COLOR_MAGENTA, curses.COLOR_BLACK)
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curses.init_pair(8, curses.COLOR_WHITE, curses.COLOR_BLUE)
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curses.init_pair(9, curses.COLOR_WHITE, curses.COLOR_RED)
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class_.WHITE = curses.color_pair(1)
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class_.BLUE = curses.color_pair(2)
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class_.GREEN = curses.color_pair(3)
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class_.YELLOW = curses.color_pair(4)
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class_.RED = curses.color_pair(5)
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class_.CYAN = curses.color_pair(6)
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class_.MAGENTA = curses.color_pair(7)
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class_.WHITE_ON_BLUE = curses.color_pair(8)
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class_.WHITE_ON_RED = curses.color_pair(9)
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class_.HASHTAG = class_.BLUE | curses.A_BOLD
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class HeaderWindow:
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def __init__(self, stdscr, height, width, y, x):
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self.window = stdscr.subwin(height, width, y, x)
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self.height = height
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self.width = width
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def draw(self):
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self.window.erase()
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self.window.addstr(0, 1, "toot - your Mastodon command line interface", Color.YELLOW)
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self.window.addstr(1, 1, "https://github.com/ihabunek/toot")
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self.window.refresh()
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class FooterWindow:
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def __init__(self, stdscr, height, width, y, x):
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self.window = stdscr.subwin(height, width, y, x)
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self.height = height
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self.width = width
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def draw_status(self, selected, count):
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text = "Showing toot {} of {}".format(selected + 1, count)
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text = fit_text(text, self.width)
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self.window.addstr(0, 0, text, Color.WHITE_ON_BLUE | curses.A_BOLD)
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self.window.refresh()
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def draw_message(self, text, color):
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text = fit_text(text, self.width - 1)
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self.window.addstr(1, 0, text, color)
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self.window.refresh()
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def clear_message(self):
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self.window.addstr(1, 0, "".ljust(self.width - 1))
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self.window.refresh()
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class StatusListWindow:
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"""Window which shows the scrollable list of statuses (left side)."""
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def __init__(self, stdscr, height, width, top, left):
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# Dimensions and position of region in stdscr which will contain the pad
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self.region_height = height
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self.region_width = width
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self.region_top = top
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self.region_left = left
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# How many statuses fit on one page (excluding border, at 3 lines per status)
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self.page_size = (height - 2) // 3
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# Initially, size the pad to the dimensions of the region, will be
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# increased later to accomodate statuses
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self.pad = curses.newpad(10, width)
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self.pad.box()
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self.scroll_pos = 0
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def draw_statuses(self, statuses, selected, starting=0):
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# Resize window to accomodate statuses if required
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height, width = self.pad.getmaxyx()
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new_height = len(statuses) * 3 + 1
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if new_height > height:
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self.pad.resize(new_height, width)
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self.pad.box()
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last_idx = len(statuses) - 1
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for index, status in enumerate(statuses):
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if index >= starting:
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highlight = selected == index
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draw_divider = index < last_idx
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self.draw_status_row(status, index, highlight, draw_divider)
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def draw_status_row(self, status, index, highlight=False, draw_divider=True):
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offset = 3 * index
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height, width = self.pad.getmaxyx()
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color = Color.GREEN if highlight else Color.WHITE
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trunc_width = width - 15
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acct = fit_text("@" + status['account']['acct'], trunc_width)
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display_name = fit_text(status['account']['display_name'], trunc_width)
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if status['account']['display_name']:
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self.pad.addstr(offset + 1, 14, display_name, color)
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self.pad.addstr(offset + 2, 14, acct, color)
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else:
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self.pad.addstr(offset + 1, 14, acct, color)
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if status['in_reply_to_id'] is not None:
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self.pad.addstr(offset + 1, width - 3, '⤶', Color.CYAN)
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date, time = status['created_at']
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self.pad.addstr(offset + 1, 1, " " + date.ljust(12), color)
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self.pad.addstr(offset + 2, 1, " " + time.ljust(12), color)
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if status['favourited']:
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self.pad.addstr(offset + 2, width - 3, '⭐', Color.YELLOW)
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if draw_divider:
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draw_horizontal_divider(self.pad, offset + 3)
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self.refresh()
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def refresh(self):
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self.pad.refresh(
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self.scroll_pos * 3, # top
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0, # left
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self.region_top,
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self.region_left,
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self.region_height + 1, # +1 required to refresh full height, not sure why
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self.region_width,
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)
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def scroll_to(self, index):
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self.scroll_pos = index
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self.refresh()
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def scroll_up(self):
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if self.scroll_pos > 0:
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self.scroll_to(self.scroll_pos - 1)
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def scroll_down(self):
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self.scroll_to(self.scroll_pos + 1)
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def scroll_if_required(self, new_index):
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if new_index < self.scroll_pos:
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self.scroll_up()
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elif new_index >= self.scroll_pos + self.page_size:
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self.scroll_down()
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else:
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self.refresh()
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class StatusDetailWindow:
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"""Window which shows details of a status (right side)"""
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def __init__(self, stdscr, height, width, y, x):
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self.window = stdscr.subwin(height, width, y, x)
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self.height = height
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self.width = width
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def content_lines(self, status):
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acct = status['account']['acct']
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name = status['account']['display_name']
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if name:
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yield name, Color.YELLOW
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yield "@" + acct, Color.GREEN
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yield
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text_width = self.width - 4
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if status['sensitive']:
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for line in status['spoiler_text']:
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yield line
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yield
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if status['sensitive'] and not status['show_sensitive']:
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yield "Marked as sensitive, press s to view".ljust(text_width), Color.WHITE_ON_RED
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return
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for line in status['content']:
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yield line
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if status['media_attachments']:
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yield
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yield "Media:"
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for attachment in status['media_attachments']:
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yield attachment['text_url'] or attachment['url']
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def footer_lines(self, status):
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if status['url'] is not None:
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yield status['url']
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if status['boosted_by']:
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acct = status['boosted_by']['acct']
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yield "Boosted by @{}".format(acct), Color.GREEN
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if status['reblogged']:
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yield "↷ Boosted", Color.CYAN
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def draw(self, status):
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self.window.erase()
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self.window.box()
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if not status:
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return
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content = self.content_lines(status)
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footer = self.footer_lines(status)
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y = draw_lines(self.window, content, 1, 2, Color.WHITE)
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draw_horizontal_divider(self.window, y)
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draw_lines(self.window, footer, y + 1, 2, Color.WHITE)
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self.window.refresh()
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class Modal:
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def __init__(self, stdscr):
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height, width, y, x = self.get_size_pos(stdscr)
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self.window = curses.newwin(height, width, y, x)
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self.draw()
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self.panel = curses.panel.new_panel(self.window)
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self.panel.hide()
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def get_content(self):
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raise NotImplementedError()
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def get_size_pos(self, stdscr):
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screen_height, screen_width = stdscr.getmaxyx()
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content = self.get_content()
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height = len(content) + 2
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width = max(len(l) for l in content) + 4
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y = (screen_height - height) // 2
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x = (screen_width - width) // 2
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return height, width, y, x
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def draw(self):
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self.window.erase()
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self.window.box()
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draw_lines(self.window, self.get_content(), 1, 2, Color.WHITE)
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def show(self):
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self.panel.top()
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self.panel.show()
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self.window.refresh()
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curses.panel.update_panels()
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def hide(self):
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self.panel.hide()
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curses.panel.update_panels()
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def loop(self):
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self.show()
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key = None
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while key != 'q':
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key = self.window.getkey()
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self.hide()
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class HelpModal(Modal):
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def get_content(self):
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return [
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("toot v{}".format(__version__), Color.GREEN | curses.A_BOLD),
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"",
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"Key bindings:",
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"",
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" h - show help",
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" j or ↓ - move down",
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" k or ↑ - move up",
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" v - view current toot in browser",
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" b - toggle boost status",
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" f - toggle favourite status",
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" q - quit application",
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" s - show sensitive content"
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"",
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"Press q to exit help.",
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"",
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("https://github.com/ihabunek/toot", Color.YELLOW),
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]
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class TimelineApp:
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def __init__(self, app, user, status_generator):
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self.app = app
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self.user = user
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self.status_generator = status_generator
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self.statuses = []
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self.stdscr = None
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def run(self):
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curses.wrapper(self._wrapped_run)
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def _wrapped_run(self, stdscr):
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self.stdscr = stdscr
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Color.setup_palette()
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self.setup_windows()
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# Load some data and redraw
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self.fetch_next()
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self.selected = 0
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self.full_redraw()
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self.loop()
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def setup_windows(self):
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screen_height, screen_width = self.stdscr.getmaxyx()
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if screen_width < 60:
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raise ConsoleError("Terminal screen is too narrow, toot curses requires at least 60 columns to display properly.")
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left_width = max(min(screen_width // 3, 60), 30)
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right_width = screen_width - left_width
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self.header = HeaderWindow(self.stdscr, 2, screen_width, 0, 0)
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self.footer = FooterWindow(self.stdscr, 2, screen_width, screen_height - 2, 0)
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self.left = StatusListWindow(self.stdscr, screen_height - 4, left_width, 2, 0)
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self.right = StatusDetailWindow(self.stdscr, screen_height - 4, right_width, 2, left_width)
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self.help_modal = HelpModal(self.stdscr)
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def loop(self):
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while True:
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key = self.left.pad.getkey()
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if key.lower() == 'q':
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return
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elif key.lower() == 'h':
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self.help_modal.loop()
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self.full_redraw()
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elif key.lower() == 'v':
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status = self.get_selected_status()
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if status:
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webbrowser.open(status['url'])
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elif key.lower() == 'j' or key == 'B':
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self.select_next()
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elif key.lower() == 'k' or key == 'A':
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self.select_previous()
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elif key.lower() == 's':
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self.show_sensitive()
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elif key.lower() == 'b':
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self.toggle_reblog()
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elif key.lower() == 'f':
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self.toggle_favourite()
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elif key == 'KEY_RESIZE':
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self.setup_windows()
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self.full_redraw()
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def show_sensitive(self):
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status = self.get_selected_status()
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if status['sensitive'] and not status['show_sensitive']:
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status['show_sensitive'] = True
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self.right.draw(status)
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def toggle_reblog(self):
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"""Reblog or unreblog selected status."""
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status = self.get_selected_status()
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assert status
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app, user = self.app, self.user
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if not app or not user:
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self.footer.draw_message("You must be logged in to reblog", Color.RED)
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return
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status_id = status['id']
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if status['reblogged']:
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status['reblogged'] = False
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self.footer.draw_message("Unboosting status...", Color.YELLOW)
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api.unreblog(app, user, status_id)
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self.footer.draw_message("✓ Status unboosted", Color.GREEN)
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else:
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status['reblogged'] = True
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self.footer.draw_message("Boosting status...", Color.YELLOW)
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api.reblog(app, user, status_id)
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self.footer.draw_message("✓ Status boosted", Color.GREEN)
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self.right.draw(status)
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def toggle_favourite(self):
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"""Favourite or unfavourite selected status."""
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status = self.get_selected_status()
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assert status
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app, user = self.app, self.user
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if not app or not user:
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self.footer.draw_message("You must be logged in to favourite", Color.RED)
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return
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status_id = status['id']
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if status['favourited']:
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self.footer.draw_message("Undoing favourite status...", Color.YELLOW)
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api.unfavourite(app, user, status_id)
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self.footer.draw_message("✓ Status unfavourited", Color.GREEN)
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else:
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self.footer.draw_message("Favourite status...", Color.YELLOW)
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api.favourite(app, user, status_id)
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self.footer.draw_message("✓ Status favourited", Color.GREEN)
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status['favourited'] = not status['favourited']
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self.right.draw(status)
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def select_previous(self):
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"""Move to the previous status in the timeline."""
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self.footer.clear_message()
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if self.selected == 0:
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self.footer.draw_message("Cannot move beyond first toot.", Color.GREEN)
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return
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old_index = self.selected
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new_index = self.selected - 1
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self.selected = new_index
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self.redraw_after_selection_change(old_index, new_index)
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def select_next(self):
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"""Move to the next status in the timeline."""
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self.footer.clear_message()
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old_index = self.selected
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new_index = self.selected + 1
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# Load more statuses if no more are available
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if self.selected + 1 >= len(self.statuses):
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self.fetch_next()
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self.left.draw_statuses(self.statuses, self.selected, new_index - 1)
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self.draw_footer_status()
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self.selected = new_index
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self.redraw_after_selection_change(old_index, new_index)
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def fetch_next(self):
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try:
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self.footer.draw_message("Loading toots...", Color.BLUE)
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statuses = next(self.status_generator)
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except StopIteration:
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return None
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for status in statuses:
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self.statuses.append(parse_status(status))
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self.footer.draw_message("Loaded {} toots".format(len(statuses)), Color.GREEN)
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return len(statuses)
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def full_redraw(self):
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"""Perform a full redraw of the UI."""
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self.header.draw()
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self.draw_footer_status()
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self.left.draw_statuses(self.statuses, self.selected)
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self.right.draw(self.get_selected_status())
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def redraw_after_selection_change(self, old_index, new_index):
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old_status = self.statuses[old_index]
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new_status = self.statuses[new_index]
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# Perform a partial redraw
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self.left.draw_status_row(old_status, old_index, highlight=False, draw_divider=False)
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self.left.draw_status_row(new_status, new_index, highlight=True, draw_divider=False)
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self.left.scroll_if_required(new_index)
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self.right.draw(new_status)
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self.draw_footer_status()
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def get_selected_status(self):
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if len(self.statuses) > self.selected:
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return self.statuses[self.selected]
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def draw_footer_status(self):
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self.footer.draw_status(self.selected, len(self.statuses))
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