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rework signal tools

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This commit is contained in:
Dima Granetchi
2017-02-02 22:24:22 +03:00
parent b1cbea09ec
commit 6327199bf1
1 changed files with 27 additions and 10 deletions
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src/bindx/SignalTools.hx
+27 -10
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@@ -1,10 +1,16 @@
package bindx;
import haxe.Constraints.Function;
class SignalTools {
static public inline var BIND_SIGNAL_META = "BindSignal";
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 {
var meta = haxe.rtti.Meta.getFields(std.Type.getClass(bindable));
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 {
var listeners = new Map<bindx.BindSignal.Signal<Dynamic>, Dynamic>();
var listeners = new Map<bindx.BindSignal.Signal<Function>, Function>();
var signals = getSignals(bindable, force);
for (name in signals.keys()) {
var signal = signals.get(name);
if (signal == null) continue;
if (std.Std.is(signal, bindx.BindSignal.FieldSignal)) {
var listener = function (from:Dynamic, to:Dynamic) callback(name, from, to);
listeners.set(signal, listener);
@@ -41,28 +55,31 @@ class SignalTools {
return function () {
for (signal in listeners.keys()) {
var listener = listeners.get(signal);
if (Std.is(signal, bindx.BindSignal.FieldSignal)) signal.remove(listener);
else signal.remove(listener);
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));
if (meta != null) for (m in std.Reflect.fields(meta)) {
var data = std.Reflect.field(meta, m);
if (std.Reflect.hasField(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) {
var lazy:Bool = args[1];
if (lazy) signal = cast std.Reflect.getProperty(bindable, m.substr(1));
}
if (signal != null) {
var name = args[0];
signals.set(name, signal);
}
var name = args[0];
signals.set(name, signal);
}
}
return signals;