rework signal tools

This commit is contained in:
Dima Granetchi
2017-02-02 22:24:22 +03:00
parent b1cbea09ec
commit 6327199bf1
+27 -10
View File
@@ -1,10 +1,16 @@
package bindx; package bindx;
import haxe.Constraints.Function;
class SignalTools { class SignalTools {
static public inline var BIND_SIGNAL_META = "BindSignal"; static public inline var BIND_SIGNAL_META = "BindSignal";
static public inline var SIGNAL_POSTFIX = "Changed"; static public inline var SIGNAL_POSTFIX = "Changed";
/**
* Remove all subscriptions from target, useful for release object (use reflection api)
* @param bindable - target object
*/
static public function unbindAll(bindable:bindx.IBindable):Void { static public function unbindAll(bindable:bindx.IBindable):Void {
var meta = haxe.rtti.Meta.getFields(std.Type.getClass(bindable)); var meta = haxe.rtti.Meta.getFields(std.Type.getClass(bindable));
if (meta != null) for (m in std.Reflect.fields(meta)) { if (meta != null) for (m in std.Reflect.fields(meta)) {
@@ -21,12 +27,20 @@ class SignalTools {
} }
} }
/**
* Bind all bindable fields/methods (use reflection api)
* @param bindable - target object
* @param callback -
* @param force = true - force instantiate all lazy signals
* @return Void -> Void
*/
static public function bindAll(bindable:bindx.IBindable, callback:String -> Dynamic -> Dynamic -> Void, force = true):Void -> Void { static public function bindAll(bindable:bindx.IBindable, callback:String -> Dynamic -> Dynamic -> Void, force = true):Void -> Void {
var listeners = new Map<bindx.BindSignal.Signal<Dynamic>, Dynamic>(); var listeners = new Map<bindx.BindSignal.Signal<Function>, Function>();
var signals = getSignals(bindable, force); var signals = getSignals(bindable, force);
for (name in signals.keys()) { for (name in signals.keys()) {
var signal = signals.get(name); var signal = signals.get(name);
if (signal == null) continue;
if (std.Std.is(signal, bindx.BindSignal.FieldSignal)) { if (std.Std.is(signal, bindx.BindSignal.FieldSignal)) {
var listener = function (from:Dynamic, to:Dynamic) callback(name, from, to); var listener = function (from:Dynamic, to:Dynamic) callback(name, from, to);
listeners.set(signal, listener); listeners.set(signal, listener);
@@ -41,28 +55,31 @@ class SignalTools {
return function () { return function () {
for (signal in listeners.keys()) { for (signal in listeners.keys()) {
var listener = listeners.get(signal); var listener = listeners.get(signal);
if (Std.is(signal, bindx.BindSignal.FieldSignal)) signal.remove(listener); signal.remove(listener);
else signal.remove(listener);
} }
} }
} }
static function getSignals(bindable:bindx.IBindable, force = true):Map<String, bindx.BindSignal.Signal<Dynamic>> { /**
var signals = new Map<String, bindx.BindSignal.Signal<Dynamic>>(); * Get all binding signals (use reflection api)
* @param bindable - target object
* @param force = true - force instantiate all lazy signals
* @return Map<String, bindx.BindSignal.Signal<Dynamic>>
*/
static public function getSignals(bindable:bindx.IBindable, force = true):Map<String, bindx.BindSignal.Signal<Function>> {
var signals = new Map<String, bindx.BindSignal.Signal<Function>>();
var meta = haxe.rtti.Meta.getFields(std.Type.getClass(bindable)); var meta = haxe.rtti.Meta.getFields(std.Type.getClass(bindable));
if (meta != null) for (m in std.Reflect.fields(meta)) { if (meta != null) for (m in std.Reflect.fields(meta)) {
var data = std.Reflect.field(meta, m); var data = std.Reflect.field(meta, m);
if (std.Reflect.hasField(data, BIND_SIGNAL_META)) { if (std.Reflect.hasField(data, BIND_SIGNAL_META)) {
var args:Array<Dynamic> = std.Reflect.field(data, BIND_SIGNAL_META); var args:Array<Dynamic> = std.Reflect.field(data, BIND_SIGNAL_META);
var signal:bindx.BindSignal.Signal<Dynamic> = cast std.Reflect.field(bindable, m); var signal:bindx.BindSignal.Signal<Function> = cast std.Reflect.field(bindable, m);
if (signal == null && force) { if (signal == null && force) {
var lazy:Bool = args[1]; var lazy:Bool = args[1];
if (lazy) signal = cast std.Reflect.getProperty(bindable, m.substr(1)); if (lazy) signal = cast std.Reflect.getProperty(bindable, m.substr(1));
} }
if (signal != null) { var name = args[0];
var name = args[0]; signals.set(name, signal);
signals.set(name, signal);
}
} }
} }
return signals; return signals;