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#!/usr/bin/env python3
import curses
from curses import wrapper
from wikijscmd import util, commands
def pager(stdscr, lst):
'''
Runs a pager for each string item in lst
'''
cols = stdscr.getmaxyx()[1]
rows = stdscr.getmaxyx()[0]
offset = 0
selected = 0
while True:
stdscr.clear()
for i in range(min(rows-1, len(lst))):
x = lst[i+offset]
if i+offset == selected:
stdscr.addstr(i, 0, x[:cols], curses.A_UNDERLINE)
else:
stdscr.addstr(i, 0, x[:cols])
if offset == 0:
stdscr.addstr(rows-1, 0, "--top--", curses.A_REVERSE)
elif offset + rows <= len(lst):
stdscr.addstr(rows-1, 0, "--more--", curses.A_REVERSE)
else:
stdscr.addstr(rows-1, 0, "--end--", curses.A_REVERSE)
k = stdscr.getch()
if k == curses.KEY_DOWN or k == ord('j'):
selected = min(len(lst), selected+1)
if (selected - offset) > (2 * rows / 3):
offset = min(len(lst)-rows+1, offset+1)
elif k == curses.KEY_UP or k == ord('k'):
selected = max(0, selected-1)
if (selected - offset) < (rows / 3):
offset = max(0, offset-1)
elif k == curses.KEY_NPAGE:
offset = min(len(lst)-rows+1, offset+rows-2)
selected = min(len(lst)-rows+1, selected+rows-2)
elif k == curses.KEY_PPAGE:
offset = max(0, offset-rows+2)
selected = max(0, selected-rows+2)
elif k == curses.KEY_HOME:
offset = 0
selected = 0
elif k == curses.KEY_END:
offset = len(lst)-rows+1
selected = len(lst)-1
elif k == curses.KEY_ENTER or k == 10:
return {"index": selected, "action": "select"}
elif k == ord('q'):
return {"index": selected, "action": "quit"}
elif k == ord('e'):
return {"index": selected, "action": "edit"}
elif k == ord('c'):
return {"index": selected, "action": "create"}
elif k == ord('t'):
return {"index": selected, "action": "today"}
stdscr.refresh()
def enter_value(stdscr, prefix, row):
"""
Creates a prompt to enter a value on the given row
"""
title = ""
stdscr.addstr(row,0, prefix + title)
k = stdscr.getch()
while k != 10 and k != curses.KEY_ENTER:
if k in (curses.KEY_BACKSPACE, '\b', '\x7f'):
if len(title) > 0:
title = title[:-1]
else:
title += chr(k)
stdscr.deleteln()
stdscr.addstr(row,0, prefix + title)
k = stdscr.getch()
return title
def m(stdscr):
"""
The main method for the ncurses wrapper
"""
items = util.get_tree("")
while True:
ret = pager(stdscr, [x["path"] + "\t" + x["title"] for x in items])
if ret["action"] == "select":
selected = items[ret["index"]]
ret = pager(stdscr, util.get_single_page(selected["path"])["content"].split("\n"))
elif ret["action"] == "edit":
selected = items[ret["index"]]
commands.edit(selected["path"], True)
elif ret["action"] == "create":
stdscr.clear()
title = enter_value(stdscr, "Enter title: ", 0)
path = enter_value(stdscr, "Enter path: ", 1)
commands.create(path, title)
elif ret["action"] == "today":
commands.today()
else:
break
def tui():
try:
wrapper(m)
except Exception as e:
raise e
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