rename web into demo

demo/static/src/ts/widget.ts

@@ -0,0 +1,38 @@
+import { Component } from "./core/component";
+import { Env } from "./env";
+
+//------------------------------------------------------------------------------
+// Widget classes
+//------------------------------------------------------------------------------
+
+export class Widget<P, S> extends Component<Env, P, S> {
+  constructor(parent, props) {
+    super(parent, props);
+    (<any>this.__widget__).isMobile = this.env.isMobile;
+  }
+  async updateProps(nextProps: P): Promise<void> {
+    if ((<any>this.__widget__).isMobile !== this.env.isMobile) {
+      (<any>this.__widget__).isMobile = this.env.isMobile;
+      return this._updateProps(nextProps);
+    }
+    return super.updateProps(nextProps);
+  }
+}
+
+export class PureWidget<P, S> extends Widget<P, S> {
+  shouldUpdate(nextProps: P): boolean {
+    for (let k in nextProps) {
+      if (nextProps[k] !== this.props[k]) {
+        return true;
+      }
+    }
+    return false;
+  }
+  async updateState(nextState: Partial<S>) {
+    for (let k in nextState) {
+      if (nextState[k] !== this.state[k]) {
+        return super.updateState(nextState);
+      }
+    }
+  }
+}