lib\pure\htmlgen.nim

avoid callsite for htmlgen

lib/pure/events.nim

@@ -1,102 +0,0 @@
-#
-#
-#            Nim's Runtime Library
-#        (c) Copyright 2011 Alexander Mitchell-Robinson
-#
-#    See the file "copying.txt", included in this
-#    distribution, for details about the copyright.
-#
-
-## :Author: Alexander Mitchell-Robinson (Amrykid)
-##
-## Unstable API.
-##
-## This module implements an event system that is not dependent on external
-## graphical toolkits. It was originally called ``NimEE`` because
-## it was inspired by Python's PyEE module. There are two ways you can use
-## events: one is a python-inspired way; the other is more of a C-style way.
-##
-## .. code-block:: Nim
-##    var ee = initEventEmitter()
-##    var genericargs: EventArgs
-##    proc handleevent(e: EventArgs) =
-##        echo("Handled!")
-##
-##    # Python way
-##    ee.on("EventName", handleevent)
-##    ee.emit("EventName", genericargs)
-##
-##    # C/Java way
-##    # Declare a type
-##    type
-##        SomeObject = object of RootObj
-##            SomeEvent: EventHandler
-##    var myobj: SomeObject
-##    myobj.SomeEvent = initEventHandler("SomeEvent")
-##    myobj.SomeEvent.addHandler(handleevent)
-##    ee.emit(myobj.SomeEvent, genericargs)
-
-type
-  EventArgs* = object of RootObj ## Base object for event arguments that are passed to callback functions.
-  EventHandler* = tuple[name: string, handlers: seq[proc(e: EventArgs) {.closure.}]] ## An eventhandler for an event.
-
-type
-  EventEmitter* = object ## An object that fires events and holds event handlers for an object.
-    s: seq[EventHandler]
-  EventError* = object of ValueError
-
-proc initEventHandler*(name: string): EventHandler =
-  ## Initializes an EventHandler with the specified name and returns it.
-  result.handlers = @[]
-  result.name = name
-
-proc addHandler*(handler: var EventHandler, fn: proc(e: EventArgs) {.closure.}) =
-  ## Adds the callback to the specified event handler.
-  handler.handlers.add(fn)
-
-proc removeHandler*(handler: var EventHandler, fn: proc(e: EventArgs) {.closure.}) =
-  ## Removes the callback from the specified event handler.
-  for i in countup(0, len(handler.handlers)-1):
-    if fn == handler.handlers[i]:
-      handler.handlers.del(i)
-      break
-
-proc containsHandler*(handler: var EventHandler, fn: proc(e: EventArgs) {.closure.}): bool =
-  ## Checks if a callback is registered to this event handler.
-  return handler.handlers.contains(fn)
-
-
-proc clearHandlers*(handler: var EventHandler) =
-  ## Clears all of the callbacks from the event handler.
-  setLen(handler.handlers, 0)
-
-proc getEventHandler(emitter: var EventEmitter, event: string): int =
-  for k in 0..high(emitter.s):
-    if emitter.s[k].name == event: return k
-  return -1
-
-proc on*(emitter: var EventEmitter, event: string, fn: proc(e: EventArgs) {.closure.}) =
-  ## Assigns a event handler with the specified callback. If the event
-  ## doesn't exist, it will be created.
-  var i = getEventHandler(emitter, event)
-  if i < 0:
-    var eh = initEventHandler(event)
-    addHandler(eh, fn)
-    emitter.s.add(eh)
-  else:
-    addHandler(emitter.s[i], fn)
-
-proc emit*(emitter: var EventEmitter, eventhandler: var EventHandler,
-           args: EventArgs) =
-  ## Fires an event handler with specified event arguments.
-  for fn in items(eventhandler.handlers): fn(args)
-
-proc emit*(emitter: var EventEmitter, event: string, args: EventArgs) =
-  ## Fires an event handler with specified event arguments.
-  var i = getEventHandler(emitter, event)
-  if i >= 0:
-    emit(emitter, emitter.s[i], args)
-
-proc initEventEmitter*(): EventEmitter =
-  ## Creates and returns a new EventEmitter.
-  result.s = @[]