def search():
search_str = ''
sel_index = 0
init_line = cio.getcurpos().y
res_limit = 10
matches = list(cur.execute("select id,name,path from app order by last_launch_time desc limit ?", (res_limit,)))
while True:
update_display(cio.get_console_size()[0], res_limit + 3, search_str, matches, sel_index)
k = cio.wait_key()
if ord(k) == 8: # BACKSPACE, erase last char
search_str = search_str[:-1]
elif ord(k) == 13: # ENTER, launch
id,name,path = matches[sel_index]
with conn:
cur.execute("update app set launch_cnt=launch_cnt+1, last_launch_time=strftime('%s', 'now') WHERE id=?", (id,))
os.startfile(path)
break
elif ord(k) == 27: # ESC, quit
break
elif ord(k) == 224:
other_k = cio.wait_key()
if ord(other_k) == 72:
if sel_index > 0: sel_index -= 1
elif ord(other_k) == 80:
if sel_index < len(matches) - 1: sel_index += 1
else:
search_str += k
sel_index = 0
matches = list(cur.execute("select id,name,path from app where name like ? order by launch_cnt desc limit ?",
('%{}%'.format(search_str), res_limit)))
cio.setcurpos(0, cio.getcurpos().y + res_limit + 3)
def update_display(width, height, search_str, matches, sel_index):
assert width > 5
assert height > 0
width -= 1
search_str_prefix = 'app: '
cio.setcurpos(0, cio.getcurpos().y)
print '{}{}'.format(search_str_prefix, cio.str_fill(search_str, width - len(search_str_prefix)))
print
line_count = 2
for i, (id, name, path) in enumerate(matches):
if line_count >= height: break
fmt_name = cio.str_fill(name, 30)
fmt_path = cio.str_fill(path, width - len(fmt_name) - 3) # The 3 is for the two spaces and the *
print '{} {} {}'.format('*' if sel_index == i else ' ', fmt_name, fmt_path)
line_count += 1
for _ in range(height - line_count): print ' '*width
cio.setcurpos(len(search_str_prefix) + len(search_str), cio.getcurpos().y - height)
def show(self, sort=True):
"""
Print menu items and wait for user input.
Parameters:
sort: if True, the menu items will be sorted by key. If False, the items
will be displayed in the same order they were added.
Returns:
True when a valid item was selected, False if ESC was pressed.
"""
# The list of available keys (used to generate a key when none has been
# provided for a given item)
availKeys = list('abcdefghijklmnopqrstuvwxyz')
# Loop on all items to validate the type of items, organize by key
itemsNoKey = []
itemsByKey = dict()
for item in self.items:
if not isinstance(item, Item):
raise Exception('Items composing the menu must be instances of the menu.Item class')
if len(item.key) > 1:
raise Exception('Item key cannot have more than one character')
if item.key == '':
itemsNoKey.append(item)
else:
if item.key in itemsByKey:
raise Exception('Two items have the same key %s' % (item.key,))
itemsByKey[item.key] = item
availKeys.remove(item.key)
# If some items have no key, generate a key for those
for item in itemsNoKey:
item.key = availKeys.pop(0)
if item.key in itemsByKey:
raise Exception('An auto generated key was already allocated')
itemsByKey[item.key] = item
# Print menu
sortedItems = sorted(self.items) if sort else self.items
for i, item in enumerate(sortedItems):
item.lineNumber = cio.getcurpos().y
print item.getLine()
# Wait for user input and return result(s)
result = True
while True:
c = cio.wait_key()
if c in itemsByKey:
if itemsByKey[c].trigger():
break
elif ord(c) == 13: # ENTER key
break
elif ord(c) == 27: # ESC key
result = False
break
# Return result
return result
