Tab fix in yaml-editor edit card (#3008)

* Fixed tabs not working in yaml editor in edit card

* Improved docs

* Fixed comments

* Added dependencies

* Added typescript mapping

* Fixed data type issue + removed depednency since it breaks the UI. Non final.

* Added iron-overlay-behavior package

* Added dependency

* Update iron-overlay-behavior

* Lint

package.json

@@ -34,6 +34,7 @@
     "@polymer/iron-input": "^3.0.1",
     "@polymer/iron-label": "^3.0.1",
     "@polymer/iron-media-query": "^3.0.1",
+    "@polymer/iron-overlay-behavior": "^3.0.2",
     "@polymer/iron-pages": "^3.0.1",
     "@polymer/iron-resizable-behavior": "^3.0.1",
     "@polymer/neon-animation": "^3.0.1",
@@ -167,7 +168,8 @@
     "@webcomponents/webcomponentsjs": "^2.2.6",
     "@webcomponents/shadycss": "^1.9.0",
     "@vaadin/vaadin-overlay": "3.2.2",
-    "@vaadin/vaadin-lumo-styles": "1.3.0"
+    "@vaadin/vaadin-lumo-styles": "1.3.0",
+    "@polymer/iron-overlay-behavior": "^3.0.2"
   },
   "main": "src/home-assistant.js",
   "husky": {

src/panels/lovelace/components/dialog/ha-dialog.ts

@@ -0,0 +1,26 @@
+import "@polymer/paper-dialog/paper-dialog";
+import { mixinBehaviors } from "@polymer/polymer/lib/legacy/class";
+import { HaIronFocusablesHelper } from "./ha-iron-focusables-helper.js";
+
+const paperDialogClass = customElements.get("paper-dialog");
+
+// behavior that will override existing iron-overlay-behavior and call the fixed implementation
+const haTabFixBehaviorImpl = {
+  get _focusableNodes() {
+    return HaIronFocusablesHelper.getTabbableNodes(this);
+  },
+};
+
+// paper-dialog that uses the haTabFixBehaviorImpl behvaior
+// export class HaPaperDialog extends paperDialogClass {}
+export class HaPaperDialog extends mixinBehaviors(
+  [haTabFixBehaviorImpl],
+  paperDialogClass
+) {}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "ha-paper-dialog": HaPaperDialog;
+  }
+}
+customElements.define("ha-paper-dialog", HaPaperDialog);

src/panels/lovelace/components/dialog/ha-iron-focusables-helper.js

@@ -0,0 +1,90 @@
+/**
+@license
+Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
+This code may only be used under the BSD style license found at
+http://polymer.github.io/LICENSE.txt The complete set of authors may be found at
+http://polymer.github.io/AUTHORS.txt The complete set of contributors may be
+found at http://polymer.github.io/CONTRIBUTORS.txt Code distributed by Google as
+part of the polymer project is also subject to an additional IP rights grant
+found at http://polymer.github.io/PATENTS.txt
+*/
+/*
+  Fixes issue with not using shadow dom properly in iron-overlay-behavior/icon-focusables-helper.js
+*/
+import { dom } from "@polymer/polymer/lib/legacy/polymer.dom.js";
+
+import { IronFocusablesHelper } from "@polymer/iron-overlay-behavior/iron-focusables-helper.js";
+
+export const HaIronFocusablesHelper = {
+  /**
+   * Returns a sorted array of tabbable nodes, including the root node.
+   * It searches the tabbable nodes in the light and shadow dom of the chidren,
+   * sorting the result by tabindex.
+   * @param {!Node} node
+   * @return {!Array<!HTMLElement>}
+   */
+  getTabbableNodes: function(node) {
+    var result = [];
+    // If there is at least one element with tabindex > 0, we need to sort
+    // the final array by tabindex.
+    var needsSortByTabIndex = this._collectTabbableNodes(node, result);
+    if (needsSortByTabIndex) {
+      return IronFocusablesHelper._sortByTabIndex(result);
+    }
+    return result;
+  },
+
+  /**
+   * Searches for nodes that are tabbable and adds them to the `result` array.
+   * Returns if the `result` array needs to be sorted by tabindex.
+   * @param {!Node} node The starting point for the search; added to `result`
+   * if tabbable.
+   * @param {!Array<!HTMLElement>} result
+   * @return {boolean}
+   * @private
+   */
+  _collectTabbableNodes: function(node, result) {
+    // If not an element or not visible, no need to explore children.
+    if (
+      node.nodeType !== Node.ELEMENT_NODE ||
+      !IronFocusablesHelper._isVisible(node)
+    ) {
+      return false;
+    }
+    var element = /** @type {!HTMLElement} */ (node);
+    var tabIndex = IronFocusablesHelper._normalizedTabIndex(element);
+    var needsSort = tabIndex > 0;
+    if (tabIndex >= 0) {
+      result.push(element);
+    }
+
+    // In ShadowDOM v1, tab order is affected by the order of distrubution.
+    // E.g. getTabbableNodes(#root) in ShadowDOM v1 should return [#A, #B];
+    // in ShadowDOM v0 tab order is not affected by the distrubution order,
+    // in fact getTabbableNodes(#root) returns [#B, #A].
+    //  <div id="root">
+    //   <!-- shadow -->
+    //     <slot name="a">
+    //     <slot name="b">
+    //   <!-- /shadow -->
+    //   <input id="A" slot="a">
+    //   <input id="B" slot="b" tabindex="1">
+    //  </div>
+    // TODO(valdrin) support ShadowDOM v1 when upgrading to Polymer v2.0.
+    var children;
+    if (element.localName === "content" || element.localName === "slot") {
+      children = dom(element).getDistributedNodes();
+    } else {
+      // /////////////////////////
+      // Use shadow root if possible, will check for distributed nodes.
+      // THIS IS THE CHANGED LINE
+      children = dom(element.shadowRoot || element.root || element).children;
+      // /////////////////////////
+    }
+    for (var i = 0; i < children.length; i++) {
+      // Ensure method is always invoked to collect tabbable children.
+      needsSort = this._collectTabbableNodes(children[i], result) || needsSort;
+    }
+    return needsSort;
+  },
+};

src/panels/lovelace/components/hui-yaml-editor.ts

@@ -96,6 +96,10 @@ export class HuiYamlEditor extends HTMLElement {
         tabSize: 2,
         autofocus: true,
         viewportMargin: Infinity,
+        extraKeys: {
+          Tab: "indentMore",
+          "Shift-Tab": "indentLess",
+        },
         gutters:
           this._hass && computeRTL(this._hass!)
             ? ["rtl-gutter", "CodeMirror-linenumbers"]

src/panels/lovelace/editor/card-editor/hui-edit-card.ts

@@ -15,9 +15,10 @@ import { haStyleDialog } from "../../../../resources/styles";
 
 import "@polymer/paper-spinner/paper-spinner";
 import "@polymer/paper-dialog/paper-dialog";
+import "../../components/dialog/ha-dialog";
 // This is not a duplicate import, one is for types, one is for element.
 // tslint:disable-next-line
-import { PaperDialogElement } from "@polymer/paper-dialog/paper-dialog";
+import { HaPaperDialog } from "../../components/dialog/ha-dialog";
 import "@material/mwc-button";
 import "@polymer/paper-dialog-scrollable/paper-dialog-scrollable";
 import { HomeAssistant } from "../../../../types";
@@ -77,8 +78,8 @@ export class HuiEditCard extends LitElement {
 
   @property() private _errorMsg?: TemplateResult;
 
-  private get _dialog(): PaperDialogElement {
-    return this.shadowRoot!.querySelector("paper-dialog")!;
+  private get _dialog(): HaPaperDialog {
+    return this.shadowRoot!.querySelector("ha-paper-dialog")!;
   }
 
   private get _previewEl(): HuiCardPreview {
@@ -147,7 +148,7 @@ export class HuiEditCard extends LitElement {
     }
 
     return html`
-      <paper-dialog
+      <ha-paper-dialog
         with-backdrop
         opened
         modal
@@ -199,7 +200,7 @@ export class HuiEditCard extends LitElement {
               </div>
             `
           : ""}
-      </paper-dialog>
+      </ha-paper-dialog>
     `;
   }
 
@@ -218,7 +219,7 @@ export class HuiEditCard extends LitElement {
 
   private async _resizeDialog(): Promise<void> {
     await this.updateComplete;
-    fireEvent(this._dialog, "iron-resize");
+    fireEvent(this._dialog as HTMLElement, "iron-resize");
   }
 
   private async _save(): Promise<void> {

yarn.lock

@@ -1096,10 +1096,10 @@
   dependencies:
     "@polymer/polymer" "^3.0.0"
 
-"@polymer/iron-overlay-behavior@^3.0.0-pre.27":
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/@polymer/iron-overlay-behavior/-/iron-overlay-behavior-3.0.1.tgz#04746be26c7f0ac3b4e80ef363fcb478425dd677"
-  integrity sha512-7XDaPVmH90G/hiyWdwv0VG+E4B2xpiWGhql8ghHg7Ik1E4gNCZ7pdeTvjnawfycjrsod0ZezhKOFavYWAaXVxA==
+"@polymer/iron-overlay-behavior@^3.0.0-pre.27", "@polymer/iron-overlay-behavior@^3.0.2":
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/@polymer/iron-overlay-behavior/-/iron-overlay-behavior-3.0.2.tgz#6a12a3f4eab4721eb6978ed950be534c9c283983"
+  integrity sha512-j1qmt6mJHCwpe1mKOvqK5kcCUPQr5LSrlqpgRDbUuLgUfNJ/vGTipjrkBlfbEUagm5FEQdc1VLPLSQP6WVuP9g==
   dependencies:
     "@polymer/iron-a11y-keys-behavior" "^3.0.0-pre.26"
     "@polymer/iron-fit-behavior" "^3.0.0-pre.26"