mirror of
https://github.com/flynx/actions.js.git
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new version of actions...
Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
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55
actions.js
55
actions.js
@ -7,12 +7,15 @@
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function(require){ var module={} // makes module AMD/node compatible...
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/*********************************************************************/
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var args2array = require('lib/util').args2array
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var toggler = require('lib/toggler')
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var object = require('lib/object')
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var object = require('object')
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/*********************************************************************/
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var args2array = function(a){ return [].slice.call(a) }
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/*********************************************************************/
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// Actions
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//
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@ -260,12 +263,13 @@ var normalizeTabs = function(str){
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var doWithRootAction =
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module.doWithRootAction =
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function(func){
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return function(name){
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return function(){
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var args = args2array(arguments)
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var handlers = (this.getHandlerList
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|| MetaActions.getHandlerList)
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.call(this, name)
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.apply(this, args)
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return func.call(this, handlers.pop(), name)
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return func.apply(this, [handlers.pop()].concat(args))
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}
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}
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@ -329,10 +333,6 @@ function(func){
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// root action return value and arguments are threaded back up the
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// action chain.
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//
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// NOTE: if the root handler is instance of Toggler (jli) and the action
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// is called with '?'/'??' as argument, then the toggler will be
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// called with the argument and return the result bypassing the
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// handlers.
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// NOTE: actions once defined do not depend on the inheritance hierarchy,
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// other than the .getHandlerList(..) method. If this method is not
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// found in the inheritance chain (i.e. the link to MetaActions)
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@ -413,19 +413,17 @@ Action.prototype.pre = function(context, args){
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var res = context
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var outer = this.name
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var getHandlers = context.getHandlers || MetaActions.getHandlers
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var isToggler = context.isToggler || MetaActions.isToggler
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// get the handler list...
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var getHandlers = context.getHandlers || MetaActions.getHandlers
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var handlers = getHandlers.call(context, outer)
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// special case: toggler -- do not handle special args...
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// XXX should this be here???
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if(isToggler.call(context, outer)
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&& args.length == 1
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&& (args[0] == '?' || args[0] == '??')){
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return {
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result: handlers.slice(-1)[0].pre.apply(context, args),
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// special case: see if we need to handle the call without handlers...
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var preActionHandler = context.preActionHandler || MetaActions.preActionHandler
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if(preActionHandler){
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// XXX signature needs work...
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var res = preActionHandler.call(context, outer, handlers, args)
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if(res !== undefined){
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return res
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}
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}
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@ -711,16 +709,19 @@ module.MetaActions = {
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})
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},
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// Test if the action is a Toggler...
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// Handler for cases when we need to avoid the pre/post handlers...
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//
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// NOTE: an action is considered a toggler only if it's base action
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// is a toggler (instance of Toggler), thus, the same "top"
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// action can be or not be a toggler in different contexts.
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// Returns:
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// - undefined - handle the action normally.
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// - object - bypass action handlers.
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//
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// For more info on togglers see: lib/toggler.js
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isToggler: doWithRootAction(function(action){
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return action instanceof toggler.Toggler }),
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// NOTE: the object result must be compatible with Action.pre(..)
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// return value...
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// NOTE: this is mostly a stub, here for documentation reasons...
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//preActionHandler: doWithRootAction(
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// function(action, name, handlers, args){ return null }),
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// Register an action callback...
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//
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// Register a post action callback
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