initial commit

src/Data/Form.js

@@ -0,0 +1,82 @@
+import IUIElement from "../Core/IUIElement.js";
+import { IUI } from "../Core/IUI.js";
+
+export default IUI.module(class Form extends IUIElement {
+    constructor() {
+        super();
+        //this.form = {};
+    }
+
+    static _copy(val){
+        if (typeof val === 'object' && val !== null)
+        {
+            let rt = {};
+            for(var i in val)
+                if (val[i] instanceof Array)
+                    // copy array
+                    rt[i] = [...val[i]];
+                else
+                    rt[i] = val[i];
+
+            return rt;
+        }
+        else 
+            return val;
+    }
+
+    async create() {
+        //var elements = this.querySelectorAll("*[field]");
+        //for (var i = 0; i < elements.length; i++)
+        //    this.form[elements[i].getAttribute("field")] = elements[i];
+    }
+
+    async setData(value) {
+        this.original = value;
+        //var copy = {};
+        //Object.assign(copy, value);
+        super.setData(Form._copy(this.original));
+        //super.setData({ ...this.original });
+    }
+
+  
+    async reset() {
+        //super.setData({ ...this.original });
+        super.setData(Form._copy(this.original));
+        return this;
+    }
+
+    // @TODO: Remove this when esiur adds suport to partially modified arrays with modified flag
+    static _areEqual(ar1, ar2)
+    {
+        if (!(ar1 instanceof Array) || !( ar2 instanceof Array))
+            return false;
+
+        if (ar1.length != ar2.length)
+            return false;
+
+        for(var i = 0; i < ar1.length; i++)
+            if (ar1[i] != ar2[i])
+                return false;
+        
+        return true;
+    }
+
+    get diff() {
+        if (this.original == null)
+            return this._data;
+
+        
+        var rt = {};
+        for (var i in this._data)
+            if (this._data[i] != this.original[i])
+            {
+                if (this._data[i] instanceof Array && Form._areEqual(this._data[i], this.original[i]))
+                    continue;
+                else
+                    rt[i] = this._data[i];
+            }
+            
+        return rt;
+    }
+
+});