116 lines
3.1 KiB
Python
116 lines
3.1 KiB
Python
import praw
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import textwrap
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import curses
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from content_generators import SubredditGenerator
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class SubredditViewer(object):
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def __init__(self, stdscr):
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self.stdscr = stdscr
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def loop(self):
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while True:
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cmd = self.stdscr.getch()
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# Move cursor up one submission
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if cmd == curses.KEY_UP:
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self.move_cursor(-1)
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# Move cursor down one submission
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elif cmd == curses.KEY_DOWN:
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self.move_cursor(1)
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# View submission
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elif cmd in (curses.KEY_RIGHT, ord(' ')):
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pass
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# Enter edit mode to change subreddit
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elif cmd == ord('/'):
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pass
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# Refresh page
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elif cmd in (curses.KEY_F5, ord('r')):
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pass
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# Quit
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elif cmd == ord('q'):
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pass
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else:
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curses.beep()
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def draw_submission(win, data, top_down=True):
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"Draw a submission in the given window."
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win.erase()
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n_rows, n_cols = win.getmaxyx()
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n_cols -= 1 # Leave space for the cursor on the first line
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# Handle the case where the window is not large enough to fit the data.
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# Print as many rows as possible, either from the top down of the bottom up.
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valid_rows = range(0, n_rows)
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offset = 0 if top_down else -(data['n_rows'] - n_rows)
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n_title = len(data['split_title'])
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for row, text in enumerate(data['split_title'], start=offset):
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if row in valid_rows:
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win.addstr(row, 1, text)
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row = n_title
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if row in valid_rows:
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win.addnstr(row, 1, '{url}'.format(**data), n_cols)
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row = n_title + 1
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if row in valid_rows:
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win.addnstr(row, 1, '{created} {comments} {score}'.format(**data), n_cols)
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row = n_title + 2
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if row in valid_rows:
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win.addnstr(row, 1, '{author} {subreddit}'.format(**data), n_cols)
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def focus_submission(win):
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"Add a vertical column of reversed background on left side of the window"
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n_rows, n_cols = win.getmaxyx()
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for row in xrange(n_rows):
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win.chgat(row, 0, 1, curses.A_REVERSE)
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def unfocus_submission(win):
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"Clear the vertical column"
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n_rows, n_cols = win.getmaxyx()
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for row in xrange(n_rows):
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win.chgat(row, 0, 1, curses.A_NORMAL)
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def draw_subreddit(stdscr):
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r = praw.Reddit(user_agent='reddit terminal viewer (rtv) v0.0')
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generator = SubredditGenerator(r)
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main_window = stdscr.derwin(1, 0)
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main_window.erase()
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max_rows, max_cols = main_window.getmaxyx()
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submission_i, current_row = 0, 0
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for data in generator.iterate(submission_i, max_cols-1):
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n_rows = min(max_rows-current_row, data['n_rows'])
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sub_window = main_window.derwin(n_rows, max_cols, current_row, 0)
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draw_submission(sub_window, data)
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focus_submission(sub_window)
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sub_window.refresh() # Debugging
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current_row += n_rows + 1
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if current_row >= max_rows:
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break
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main_window.refresh()
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main_window.getch()
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if __name__ == '__main__':
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#draw_submissions(None)
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curses.wrapper(draw_subreddit) |