chore(packages): move the packages to root

core/src/components/picker-controller/picker-controller.tsx

@@ -0,0 +1,51 @@
+import { Component, Listen, Method } from '@stencil/core';
+import { OverlayController, PickerEvent, PickerOptions } from '../../index';
+import { createOverlay, dismissOverlay, getTopOverlay, removeLastOverlay } from '../../utils/overlays';
+
+
+@Component({
+  tag: 'ion-picker-controller'
+})
+export class PickerController implements OverlayController {
+
+  private pickers = new Map<number, HTMLIonPickerElement>();
+
+  @Listen('body:ionPickerWillPresent')
+  protected pickerWillPresent(ev: PickerEvent) {
+    this.pickers.set(ev.target.overlayId, ev.target);
+  }
+
+  @Listen('body:ionPickerWillDismiss, body:ionPickerDidUnload')
+  protected pickerWillDismiss(ev: PickerEvent) {
+    this.pickers.delete(ev.target.overlayId);
+  }
+
+  @Listen('body:keyup.escape')
+  protected escapeKeyUp() {
+    removeLastOverlay(this.pickers);
+  }
+
+  /*
+   * Create a picker overlay with picker options.
+   */
+  @Method()
+  create(opts?: PickerOptions): Promise<HTMLIonPickerElement> {
+    return createOverlay(document.createElement('ion-picker'), opts);
+  }
+
+  /*
+   * Dismiss the open picker overlay.
+   */
+  @Method()
+  dismiss(data?: any, role?: string, pickerId = -1) {
+    return dismissOverlay(data, role, this.pickers, pickerId);
+  }
+
+  /*
+   * Get the most recently opened picker overlay.
+   */
+  @Method()
+  getTop(): HTMLIonPickerElement {
+    return getTopOverlay(this.pickers);
+  }
+}