tp-elements/tp-store
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This commit is contained in:
trading_peter 2022-03-12 22:57:00 +01:00
parent bb907d9880
commit 6c0abed855
3 changed files with 35 additions and 44 deletions
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37
dataStore.js
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@ -1,37 +0,0 @@
/**
@license
Copyright (c) 2022 trading_peter
This program is available under Apache License Version 2.0
*/
const data = new Map();
const instancesPerKey = new Map();
export const DataStore = new class {
addInstance(instance, key, targetProperty) {
if (instancesPerKey.has(key) === false) {
instancesPerKey.set(key, [ { instance, targetProperty } ]);
} else {
instancesPerKey.get(key).push({ instance, targetProperty });
}
if (data.has(key)) {
this._notifyInstance(instance, key, data.get(key), targetProperty);
}
}
writeKey(key, value) {
data.set(key, value);
const instances = instancesPerKey.get(key);
if (Array.isArray(instances)) {
instances.forEach(entry => {
this._notifyInstance(entry.instance, key, value, entry.targetProperty);
});
}
}
_notifyInstance(instance, key, value, targetProperty) {
instance._storeUpdated(key, value, targetProperty);
}
};

2
package.json
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@ -1,6 +1,6 @@
{ {
"name": "@tp/tp-store", "name": "@tp/tp-store",
"version": "1.0.0", "version": "1.1.0",
"description": "", "description": "",
"main": "tp-store.js", "main": "tp-store.js",
"scripts": { "scripts": {

40
store.js
View File

@ -4,7 +4,8 @@ Copyright (c) 2022 trading_peter
This program is available under Apache License Version 2.0 This program is available under Apache License Version 2.0
*/ */
import { DataStore } from './dataStore'; const data = new Map();
const instancesPerKey = new Map();
/** /**
* # Store * # Store
@ -13,7 +14,7 @@ import { DataStore } from './dataStore';
*/ */
export const Store = function(superClass) { export const Store = function(superClass) {
return class extends superClass { return class extends superClass {
_storeSubscribe(keys) { storeSubscribe(keys) {
if (Array.isArray(keys) === false) { if (Array.isArray(keys) === false) {
keys = [ keys ]; keys = [ keys ];
} }
@ -24,16 +25,43 @@ export const Store = function(superClass) {
targetProperty = key.targetProperty; targetProperty = key.targetProperty;
key = key.key; key = key.key;
} }
DataStore.addInstance(this, key, targetProperty); this._addInstance(this, key, targetProperty);
}); });
} }
_storeUpdated(key, newValue, targetProperty) { storeUpdated(key, newValue, targetProperty) {
this[targetProperty || key] = newValue; this[targetProperty || key] = newValue;
} }
_storeWrite(key, value) { storeWrite(key, value) {
DataStore.writeKey(key, value); this._writeKey(key, value);
}
_addInstance(instance, key, targetProperty) {
if (instancesPerKey.has(key) === false) {
instancesPerKey.set(key, [ { instance, targetProperty } ]);
} else {
instancesPerKey.get(key).push({ instance, targetProperty });
}
if (data.has(key)) {
this._notifyInstance(instance, key, data.get(key), targetProperty);
}
}
_writeKey(key, value) {
data.set(key, value);
const instances = instancesPerKey.get(key);
if (Array.isArray(instances)) {
instances.forEach(entry => {
this._notifyInstance(entry.instance, key, value, entry.targetProperty);
});
}
}
_notifyInstance(instance, key, value, targetProperty) {
instance._storeUpdated(key, value, targetProperty);
} }
}; };
} }