790 lines
26 KiB
Python
790 lines
26 KiB
Python
# -*- coding: utf-8 -*-
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import os
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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, size_as_drawn
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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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import curses.textpad
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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.window.bkgdset(' ', Color.WHITE_ON_BLUE)
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self.height = height
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self.width = width
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def draw(self, user):
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username = "{}@{}".format(user.username, user.instance)
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self.window.erase()
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self.window.addstr(" toot", curses.A_BOLD)
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self.window.addstr(" | ")
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self.window.addstr(username)
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self.window.addstr(" | ")
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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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# Make curses interpret escape sequences for getch (why is this off by default?)
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self.pad.keypad(True)
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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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yield (
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"{replies_count} replies, "
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"{reblogs_count} reblogs, "
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"{favourites_count} favourites"
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).format(**status), 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, resize_callback=None):
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self.stdscr = stdscr
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self.resize_callback = resize_callback
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self.setup_windows()
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self.full_redraw()
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self.panel = curses.panel.new_panel(self.window)
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self.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 setup_windows(self):
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height, width, y, x = self.get_size_pos(self.stdscr)
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self.window = curses.newwin(height, width, y, x)
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def full_redraw(self):
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self.setup_windows()
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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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while True:
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ch = self.window.getch()
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key = chr(ch).lower() if curses.ascii.isprint(ch) else None
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if key == 'q':
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break
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elif ch == curses.KEY_RESIZE:
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if self.resize_callback:
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self.resize_callback()
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self.full_redraw()
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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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" c - post a new status",
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" r - reply to 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 DeprecationNoticeModal(Modal):
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def get_content(self):
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return [
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("DEPRECATION NOTICE", Color.RED | curses.A_BOLD),
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"",
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"This experimental terminal UI has been deprecated and will be ",
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"removed in the near future.",
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"",
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"The new TUI can be lauched by running `toot tui`. This new UI ",
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"contains all the functionality of this one and much more. ",
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"It will be supported for the forseeable future.",
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"",
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"For details see:",
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("https://github.com/ihabunek/toot/pull/108", Color.CYAN),
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"",
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("Press q to close this notice.", Color.YELLOW),
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]
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class EntryModal(Modal):
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def __init__(self, stdscr, title, footer=None, size=(None, None), default=None, resize_callback=None):
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self.stdscr = stdscr
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self.resize_callback = resize_callback
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self.content = [] if default is None else default.split()
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self.cursor_pos = 0
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self.pad_y, self.pad_x = 2, 2
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self.title = title
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self.footer = footer
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self.size = size
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if self.footer:
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self.pad_y += 1
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self.setup_windows()
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self.full_redraw()
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self.panel = curses.panel.new_panel(self.window)
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self.hide()
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def get_size_pos(self, stdscr):
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screen_height, screen_width = stdscr.getmaxyx()
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if self.size[0]:
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height = self.size[0] + (self.pad_y * 2) + 1
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else:
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height = int(screen_height / 1.33)
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if self.size[1]:
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width = self.size[1] + (self.pad_x * 2) + 1
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else:
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width = int(screen_width / 1.25)
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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 setup_windows(self):
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height, width, y, x = self.get_size_pos(self.stdscr)
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self.window = curses.newwin(height, width, y, x)
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self.text_window = self.window.derwin(height - (self.pad_y * 2), width - (self.pad_x * 2), self.pad_y, self.pad_x)
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self.text_window.keypad(True)
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def full_redraw(self):
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self.window.erase()
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self.window.box()
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draw_lines(self.window, ["{} (^D to confirm):".format(self.title)], 1, 2, Color.WHITE)
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if self.footer:
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window_height, window_width = self.window.getmaxyx()
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draw_lines(self.window, [self.footer], window_height - self.pad_y + 1, 2, Color.WHITE)
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self.window.refresh()
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self.refresh_text()
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def refresh_text(self):
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text = self.get_content()
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lines = text.split('\n')
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draw_lines(self.text_window, lines, 0, 0, Color.WHITE)
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text_window_height, text_window_width = self.text_window.getmaxyx()
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text_on_screen = (''.join(self.content)[:self.cursor_pos] + '_').split('\n')
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y, x = size_as_drawn(text_on_screen, text_window_width)
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self.text_window.move(y, x)
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def show(self):
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super().show()
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self.refresh_text()
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def clear(self):
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self.content = []
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self.cursor_pos = 0
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def on_resize(self):
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if self.resize_callback:
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self.resize_callback()
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self.setup_windows()
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self.full_redraw()
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def do_command(self, ch):
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if curses.ascii.isprint(ch) or ch == curses.ascii.LF:
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text_window_height, text_window_width = self.text_window.getmaxyx()
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y, x = size_as_drawn((self.get_content() + chr(ch)).split('\n'), text_window_width)
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if y < text_window_height - 1 and x < text_window_width:
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self.content.insert(self.cursor_pos, chr(ch))
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self.cursor_pos += 1
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else:
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curses.beep()
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elif ch == curses.KEY_BACKSPACE:
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if self.cursor_pos > 0:
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del self.content[self.cursor_pos - 1]
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self.cursor_pos -= 1
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else:
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curses.beep()
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elif ch == curses.KEY_DC:
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if self.cursor_pos >= 0 and self.cursor_pos < len(self.content):
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del self.content[self.cursor_pos]
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else:
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curses.beep()
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elif ch == curses.KEY_LEFT:
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if self.cursor_pos > 0:
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self.cursor_pos -= 1
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else:
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curses.beep()
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elif ch == curses.KEY_RIGHT:
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if self.cursor_pos + 1 <= len(self.content):
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self.cursor_pos += 1
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else:
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curses.beep()
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elif ch in (curses.ascii.EOT, curses.ascii.RS): # ^D or (for some terminals) Ctrl+Enter
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return False, False
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elif ch == curses.ascii.ESC:
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self.clear()
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return False, True
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elif ch == curses.KEY_RESIZE:
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self.on_resize()
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return True, False
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self.refresh_text()
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return True, False
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def get_content(self):
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return ''.join(self.content)
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def loop(self):
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self.show()
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while True:
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ch = self.text_window.getch()
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if not ch:
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continue
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should_continue, abort_flag = self.do_command(ch)
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if not should_continue:
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break
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self.hide()
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if abort_flag:
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return None
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else:
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return self.get_content()
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class ComposeModal(EntryModal):
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def __init__(self, stdscr, default_cw=None, **kwargs):
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super().__init__(stdscr, title="Compose a toot", footer="^D to submit, ESC to quit, ^W to mark sensitive (cw)", **kwargs)
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self.cw = default_cw
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self.cwmodal = EntryModal(stdscr, title="Content warning", size=(1, 60), default=self.cw, resize_callback=self.on_resize)
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def do_command(self, ch):
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if ch == curses.ascii.ctrl(ord('w')):
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self.cwmodal.on_resize()
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self.cw = self.cwmodal.loop() or None
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self.full_redraw()
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|
return True, False
|
|
else:
|
|
return super().do_command(ch)
|
|
|
|
def loop(self):
|
|
content = super().loop()
|
|
return content, self.cw
|
|
|
|
|
|
class TimelineApp:
|
|
def __init__(self, app, user, status_generator):
|
|
self.app = app
|
|
self.user = user
|
|
self.status_generator = status_generator
|
|
self.statuses = []
|
|
self.stdscr = None
|
|
|
|
def run(self):
|
|
os.environ.setdefault('ESCDELAY', '25')
|
|
curses.wrapper(self._wrapped_run)
|
|
|
|
def _wrapped_run(self, stdscr):
|
|
self.stdscr = stdscr
|
|
|
|
Color.setup_palette()
|
|
self.setup_windows()
|
|
|
|
# Load some data and redraw
|
|
self.fetch_next()
|
|
self.selected = 0
|
|
self.full_redraw()
|
|
|
|
self.deprecation_modal.loop()
|
|
self.full_redraw()
|
|
|
|
self.loop()
|
|
|
|
def setup_windows(self):
|
|
screen_height, screen_width = self.stdscr.getmaxyx()
|
|
|
|
if screen_width < 60:
|
|
raise ConsoleError("Terminal screen is too narrow, toot curses requires at least 60 columns to display properly.")
|
|
|
|
header_height = 1
|
|
footer_height = 2
|
|
footer_top = screen_height - footer_height
|
|
|
|
left_width = max(min(screen_width // 3, 60), 30)
|
|
main_height = screen_height - header_height - footer_height
|
|
main_width = screen_width - left_width
|
|
|
|
self.header = HeaderWindow(self.stdscr, header_height, screen_width, 0, 0)
|
|
self.footer = FooterWindow(self.stdscr, footer_height, screen_width, footer_top, 0)
|
|
self.left = StatusListWindow(self.stdscr, main_height, left_width, header_height, 0)
|
|
self.right = StatusDetailWindow(self.stdscr, main_height, main_width, header_height, left_width)
|
|
|
|
self.help_modal = HelpModal(self.stdscr, resize_callback=self.on_resize)
|
|
self.deprecation_modal = DeprecationNoticeModal(self.stdscr, resize_callback=self.on_resize)
|
|
|
|
def loop(self):
|
|
while True:
|
|
ch = self.left.pad.getch()
|
|
key = chr(ch).lower() if curses.ascii.isprint(ch) else None
|
|
|
|
if key == 'q':
|
|
return
|
|
|
|
elif key == 'h':
|
|
self.help_modal.loop()
|
|
self.full_redraw()
|
|
|
|
elif key == 'v':
|
|
status = self.get_selected_status()
|
|
if status:
|
|
webbrowser.open(status['url'])
|
|
|
|
elif key == 'j' or ch == curses.KEY_DOWN:
|
|
self.select_next()
|
|
|
|
elif key == 'k' or ch == curses.KEY_UP:
|
|
self.select_previous()
|
|
|
|
elif key == 's':
|
|
self.show_sensitive()
|
|
|
|
elif key == 'b':
|
|
self.toggle_reblog()
|
|
|
|
elif key == 'f':
|
|
self.toggle_favourite()
|
|
|
|
elif key == 'c':
|
|
self.compose()
|
|
|
|
elif key == 'r':
|
|
self.reply()
|
|
|
|
elif ch == curses.KEY_RESIZE:
|
|
self.on_resize()
|
|
|
|
def show_sensitive(self):
|
|
status = self.get_selected_status()
|
|
if status['sensitive'] and not status['show_sensitive']:
|
|
status['show_sensitive'] = True
|
|
self.right.draw(status)
|
|
|
|
def compose(self):
|
|
"""Compose and submit a new status"""
|
|
app, user = self.app, self.user
|
|
if not app or not user:
|
|
self.footer.draw_message("You must be logged in to post", Color.RED)
|
|
return
|
|
|
|
compose_modal = ComposeModal(self.stdscr, resize_callback=self.on_resize)
|
|
content, cw = compose_modal.loop()
|
|
self.full_redraw()
|
|
if content is None:
|
|
return
|
|
elif len(content) == 0:
|
|
self.footer.draw_message("Status must contain content", Color.RED)
|
|
return
|
|
|
|
self.footer.draw_message("Submitting status...", Color.YELLOW)
|
|
response = api.post_status(app, user, content, spoiler_text=cw, sensitive=cw is not None)
|
|
status = parse_status(response)
|
|
self.statuses.insert(0, status)
|
|
self.selected += 1
|
|
self.left.draw_statuses(self.statuses, self.selected)
|
|
self.footer.draw_message("✓ Status posted", Color.GREEN)
|
|
|
|
def reply(self):
|
|
"""Reply to the selected status"""
|
|
status = self.get_selected_status()
|
|
app, user = self.app, self.user
|
|
if not app or not user:
|
|
self.footer.draw_message("You must be logged in to reply", Color.RED)
|
|
return
|
|
|
|
compose_modal = ComposeModal(self.stdscr, default_cw='\n'.join(status['spoiler_text']) or None, resize_callback=self.on_resize)
|
|
content, cw = compose_modal.loop()
|
|
self.full_redraw()
|
|
if content is None:
|
|
return
|
|
elif len(content) == 0:
|
|
self.footer.draw_message("Status must contain content", Color.RED)
|
|
return
|
|
|
|
self.footer.draw_message("Submitting reply...", Color.YELLOW)
|
|
response = api.post_status(app, user, content, spoiler_text=cw, sensitive=cw is not None, in_reply_to_id=status['id'])
|
|
status = parse_status(response)
|
|
self.statuses.insert(0, status)
|
|
self.selected += 1
|
|
self.left.draw_statuses(self.statuses, self.selected)
|
|
self.footer.draw_message("✓ Reply posted", Color.GREEN)
|
|
|
|
def toggle_reblog(self):
|
|
"""Reblog or unreblog selected status."""
|
|
status = self.get_selected_status()
|
|
assert status
|
|
app, user = self.app, self.user
|
|
if not app or not user:
|
|
self.footer.draw_message("You must be logged in to reblog", Color.RED)
|
|
return
|
|
status_id = status['id']
|
|
if status['reblogged']:
|
|
status['reblogged'] = False
|
|
self.footer.draw_message("Unboosting status...", Color.YELLOW)
|
|
api.unreblog(app, user, status_id)
|
|
self.footer.draw_message("✓ Status unboosted", Color.GREEN)
|
|
else:
|
|
status['reblogged'] = True
|
|
self.footer.draw_message("Boosting status...", Color.YELLOW)
|
|
api.reblog(app, user, status_id)
|
|
self.footer.draw_message("✓ Status boosted", Color.GREEN)
|
|
|
|
self.right.draw(status)
|
|
|
|
def toggle_favourite(self):
|
|
"""Favourite or unfavourite selected status."""
|
|
status = self.get_selected_status()
|
|
assert status
|
|
app, user = self.app, self.user
|
|
if not app or not user:
|
|
self.footer.draw_message("You must be logged in to favourite", Color.RED)
|
|
return
|
|
status_id = status['id']
|
|
if status['favourited']:
|
|
self.footer.draw_message("Undoing favourite status...", Color.YELLOW)
|
|
api.unfavourite(app, user, status_id)
|
|
self.footer.draw_message("✓ Status unfavourited", Color.GREEN)
|
|
else:
|
|
self.footer.draw_message("Favourite status...", Color.YELLOW)
|
|
api.favourite(app, user, status_id)
|
|
self.footer.draw_message("✓ Status favourited", Color.GREEN)
|
|
status['favourited'] = not status['favourited']
|
|
|
|
self.right.draw(status)
|
|
|
|
def select_previous(self):
|
|
"""Move to the previous status in the timeline."""
|
|
self.footer.clear_message()
|
|
|
|
if self.selected == 0:
|
|
self.footer.draw_message("Cannot move beyond first toot.", Color.GREEN)
|
|
return
|
|
|
|
old_index = self.selected
|
|
new_index = self.selected - 1
|
|
|
|
self.selected = new_index
|
|
self.redraw_after_selection_change(old_index, new_index)
|
|
|
|
def select_next(self):
|
|
"""Move to the next status in the timeline."""
|
|
self.footer.clear_message()
|
|
|
|
old_index = self.selected
|
|
new_index = self.selected + 1
|
|
|
|
# Load more statuses if no more are available
|
|
if self.selected + 1 >= len(self.statuses):
|
|
self.fetch_next()
|
|
self.left.draw_statuses(self.statuses, self.selected, new_index - 1)
|
|
self.draw_footer_status()
|
|
|
|
self.selected = new_index
|
|
self.redraw_after_selection_change(old_index, new_index)
|
|
|
|
def fetch_next(self):
|
|
try:
|
|
self.footer.draw_message("Loading toots...", Color.BLUE)
|
|
statuses = next(self.status_generator)
|
|
except StopIteration:
|
|
return None
|
|
|
|
for status in statuses:
|
|
self.statuses.append(parse_status(status))
|
|
|
|
self.footer.draw_message("Loaded {} toots".format(len(statuses)), Color.GREEN)
|
|
|
|
return len(statuses)
|
|
|
|
def on_resize(self):
|
|
self.setup_windows()
|
|
self.full_redraw()
|
|
|
|
def full_redraw(self):
|
|
"""Perform a full redraw of the UI."""
|
|
self.left.draw_statuses(self.statuses, self.selected)
|
|
self.right.draw(self.get_selected_status())
|
|
|
|
self.header.draw(self.user)
|
|
self.draw_footer_status()
|
|
|
|
|
|
def redraw_after_selection_change(self, old_index, new_index):
|
|
old_status = self.statuses[old_index]
|
|
new_status = self.statuses[new_index]
|
|
|
|
# Perform a partial redraw
|
|
self.left.draw_status_row(old_status, old_index, highlight=False, draw_divider=False)
|
|
self.left.draw_status_row(new_status, new_index, highlight=True, draw_divider=False)
|
|
self.left.scroll_if_required(new_index)
|
|
|
|
self.right.draw(new_status)
|
|
self.draw_footer_status()
|
|
|
|
def get_selected_status(self):
|
|
if len(self.statuses) > self.selected:
|
|
return self.statuses[self.selected]
|
|
|
|
def draw_footer_status(self):
|
|
self.footer.draw_status(self.selected, len(self.statuses))
|