import keyinput
from mode import Fundamental
from method import Method

class PipeInsertChr(Method):
    _is_method = False
    args = []
    def __init__(self, i):
        self.name   = "pipe-insert-chr-%s" % i
        self.help   = "Insert chr(%d) into the current pipe." % i
        self.string = chr(i)
    def _execute(self, w, **vargs):
        w.buffer.pipe_write(self.string)

class PipeInsertEsc(PipeInsertChr):
    def __init__(self, i):
        self.name   = "pipe-insert-esc-%s" % i
        self.help   = "Insert ESC + chr(%d) into the current pipe." % i
        self.string = chr(27) + chr(i)

class Pipe(Fundamental):
    modename = 'pipe'
    def __init__(self, w):
        Fundamental.__init__(self, w)

        keys = self.bindings.keys()
        for key in keys:
            if key.startswith('C-x') or key.startswith('M-x'):
                continue
            del self.bindings[key]

        for i in range(0, 128):
            # skip C-x and ESC
            if i in (24, 27):
                continue
            sym = keyinput.MAP.get(i, chr(i))
            obj = PipeInsertChr(i)
            w.application.methods[obj.name] = obj
            self.add_binding(obj.name, sym)

            if i != ord('x'):
                sym2 = 'M-%s' % sym
                obj2 = PipeInsertEsc(i)
                w.application.methods[obj2.name] = obj2
                self.add_binding(obj2.name, sym2)

install = Pipe.install