283 lines
9.2 KiB
Python
283 lines
9.2 KiB
Python
import curses
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import sys
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import time
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import praw.errors
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from .content import SubmissionContent
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from .page import BasePage
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from .workers import LoadScreen, open_browser
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from .curses_helpers import (BULLET, UARROW, DARROW, Color, show_help,
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text_input)
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__all__ = ['SubmissionPage']
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class SubmissionPage(BasePage):
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def __init__(self, stdscr, reddit, url=None, submission=None):
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self.loader = LoadScreen(stdscr)
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if url is not None:
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content = SubmissionContent.from_url(reddit, url, self.loader)
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elif submission is not None:
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content = SubmissionContent(submission, self.loader)
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else:
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raise ValueError('Must specify url or submission')
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super(SubmissionPage, self).__init__(stdscr, reddit, content,
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page_index=-1)
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def loop(self):
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self.draw()
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while True:
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cmd = self.stdscr.getch()
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if cmd in (curses.KEY_UP, ord('k')):
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self.move_cursor_up()
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self.clear_input_queue()
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elif cmd in (curses.KEY_DOWN, ord('j')):
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self.move_cursor_down()
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self.clear_input_queue()
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elif cmd in (curses.KEY_RIGHT, curses.KEY_ENTER, ord('l')):
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self.toggle_comment()
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self.draw()
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elif cmd in (curses.KEY_LEFT, ord('h')):
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break
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elif cmd == ord('o'):
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self.open_link()
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self.draw()
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elif cmd in (curses.KEY_F5, ord('r')):
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self.refresh_content()
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self.draw()
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elif cmd == ord('c'):
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self.add_comment()
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self.draw()
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elif cmd == ord('?'):
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display_help(self.stdscr)
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self.draw()
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elif cmd == ord('a'):
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self.upvote()
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self.draw()
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elif cmd == ord('z'):
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self.downvote()
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self.draw()
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elif cmd == ord('q'):
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sys.exit()
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elif cmd == curses.KEY_RESIZE:
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self.draw()
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def toggle_comment(self):
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current_index = self.nav.absolute_index
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self.content.toggle(current_index)
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if self.nav.inverted:
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# Reset the page so that the bottom is at the cursor position.
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# This is a workaround to handle if folding the causes the
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# cursor index to go out of bounds.
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self.nav.page_index, self.nav.cursor_index = current_index, 0
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def refresh_content(self):
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url = self.content.name
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self.content = SubmissionContent.from_url(self.reddit, url, self.loader)
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self.nav.page_index, self.nav.cursor_index = -1, 0
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self.nav.inverted = False
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def open_link(self):
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# Always open the page for the submission
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# May want to expand at some point to open comment permalinks
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url = self.content.get(-1)['permalink']
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open_browser(url)
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def draw_item(self, win, data, inverted=False):
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if data['type'] == 'MoreComments':
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return self.draw_more_comments(win, data)
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elif data['type'] == 'HiddenComment':
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return self.draw_more_comments(win, data)
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elif data['type'] == 'Comment':
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return self.draw_comment(win, data, inverted=inverted)
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else:
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return self.draw_submission(win, data)
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@staticmethod
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def draw_comment(win, data, inverted=False):
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n_rows, n_cols = win.getmaxyx()
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n_cols -= 1
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# Handle the case where the window is not large enough to fit the text.
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valid_rows = range(0, n_rows)
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offset = 0 if not inverted else -(data['n_rows'] - n_rows)
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row = offset
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if row in valid_rows:
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text = clean('{author} '.format(**data))
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attr = curses.A_BOLD
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attr |= (Color.BLUE if not data['is_author'] else Color.GREEN)
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win.addnstr(row, 1, text, n_cols-1, attr)
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if data['flair']:
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text = clean('{flair} '.format(**data))
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attr = curses.A_BOLD | Color.YELLOW
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win.addnstr(text, n_cols-win.getyx()[1], attr)
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if data['likes'] is None:
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text, attr = BULLET, curses.A_BOLD
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elif data['likes']:
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text, attr = UARROW, (curses.A_BOLD | Color.GREEN)
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else:
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text, attr = DARROW, (curses.A_BOLD | Color.RED)
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win.addnstr(text, n_cols-win.getyx()[1], attr)
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text = clean(' {score} {created}'.format(**data))
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win.addnstr(text, n_cols-win.getyx()[1])
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n_body = len(data['split_body'])
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for row, text in enumerate(data['split_body'], start=offset+1):
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if row in valid_rows:
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text = clean(text)
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win.addnstr(row, 1, text, n_cols-1)
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# Unfortunately vline() doesn't support custom color so we have to
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# build it one segment at a time.
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attr = Color.get_level(data['level'])
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for y in range(n_rows):
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x = 0
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# http://bugs.python.org/issue21088
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if (sys.version_info.major,
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sys.version_info.minor,
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sys.version_info.micro) == (3, 4, 0):
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x, y = y, x
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win.addch(y, x, curses.ACS_VLINE, attr)
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return (attr | curses.ACS_VLINE)
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@staticmethod
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def draw_more_comments(win, data):
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n_rows, n_cols = win.getmaxyx()
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n_cols -= 1
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text = clean('{body}'.format(**data))
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win.addnstr(0, 1, text, n_cols-1)
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text = clean(' [{count}]'.format(**data))
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win.addnstr(text, n_cols-win.getyx()[1], curses.A_BOLD)
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# Unfortunately vline() doesn't support custom color so we have to
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# build it one segment at a time.
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attr = Color.get_level(data['level'])
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win.addch(0, 0, curses.ACS_VLINE, attr)
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return (attr | curses.ACS_VLINE)
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@staticmethod
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def draw_submission(win, data):
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n_rows, n_cols = win.getmaxyx()
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n_cols -= 3 # one for each side of the border + one for offset
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# Don't print at all if there is not enough room to fit the whole sub
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if data['n_rows'] > n_rows:
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win.addnstr(0, 0, '(Not enough space to display)', n_cols)
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return
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for row, text in enumerate(data['split_title'], start=1):
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text = clean(text)
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win.addnstr(row, 1, text, n_cols, curses.A_BOLD)
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row = len(data['split_title']) + 1
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attr = curses.A_BOLD | Color.GREEN
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text = clean('{author}'.format(**data))
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win.addnstr(row, 1, text, n_cols, attr)
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attr = curses.A_BOLD | Color.YELLOW
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text = clean(' {flair}'.format(**data))
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win.addnstr(text, n_cols-win.getyx()[1], attr)
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text = clean(' {created} {subreddit}'.format(**data))
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win.addnstr(text, n_cols-win.getyx()[1])
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row = len(data['split_title']) + 2
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attr = curses.A_UNDERLINE | Color.BLUE
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text = clean('{url}'.format(**data))
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win.addnstr(row, 1, text, n_cols, attr)
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offset = len(data['split_title']) + 3
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for row, text in enumerate(data['split_text'], start=offset):
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text = clean(text)
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win.addnstr(row, 1, text, n_cols)
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row = len(data['split_title']) + len(data['split_text']) + 3
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text = clean('{score} {comments}'.format(**data))
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win.addnstr(row, 1, text, n_cols, curses.A_BOLD)
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win.border()
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def add_comment(self):
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"""
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Add a comment on the submission if a header is selected.
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Reply to a comment if the comment is selected.
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"""
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if not self.reddit.is_logged_in():
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display_message(self.stdscr, ["Login to reply"])
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return
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data = self.content.get(self.nav.absolute_index)
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if data['type'] not in ('Comment', 'Submission'):
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curses.flash()
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return
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# Fill the bottom half of the screen with the comment box
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n_rows, n_cols = self.stdscr.getmaxyx()
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box_height = n_rows // 2
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attr = curses.A_BOLD | Color.CYAN
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for x in range(n_cols):
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y = box_height - 1
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# http://bugs.python.org/issue21088
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if (sys.version_info.major,
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sys.version_info.minor,
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sys.version_info.micro) == (3, 4, 0):
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x, y = y, x
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self.stdscr.addch(y, x, curses.ACS_HLINE, attr)
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prompt = 'Enter comment: ESC to cancel, Ctrl+g to submit'
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scol = max(0, (n_cols // 2) - (len(prompt) // 2))
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self.stdscr.addnstr(box_height-1, scol, prompt, n_cols-scol, attr)
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self.stdscr.refresh()
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window = self.stdscr.derwin(n_rows-box_height, n_cols, box_height, 0)
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window.attrset(Color.CYAN)
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comment_text = text_input(window, allow_resize=False)
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if comment_text is None:
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return
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try:
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if data['type'] == 'Submission':
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data['object'].add_comment(comment_text)
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else:
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data['object'].reply(comment_text)
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except praw.errors.APIException as e:
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display_message(self.stdscr, [e.message])
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else:
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time.sleep(0.5)
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self.refresh_content() |