Add developer tools panel (#3313)

build-scripts/gulp/gen-icons.js

@@ -22,6 +22,7 @@ const BUILT_IN_PANEL_ICONS = [
   "mailbox", // Mailbox
   "tooltip-account", // Map
   "cart", // Shopping List
+  "hammer", // developer-tools
 ];
 
 // Given an icon name, load the SVG file

src/components/ha-sidebar.ts

@@ -14,7 +14,6 @@ import "@polymer/paper-listbox/paper-listbox";
 import "./ha-icon";
 
 import "../components/user/ha-user-badge";
-import isComponentLoaded from "../common/config/is_component_loaded";
 import { HomeAssistant, PanelInfo } from "../types";
 import { fireEvent } from "../common/dom/fire_event";
 import { DEFAULT_PANEL } from "../common/const";
@@ -23,47 +22,64 @@ import {
   ExternalConfig,
 } from "../external_app/external_config";
 
+const SHOW_AFTER_SPACER = ["config", "developer-tools"];
+
 const computeUrl = (urlPath) => `/${urlPath}`;
 
-const computePanels = (hass: HomeAssistant) => {
+const SORT_VALUE = {
+  map: 1,
+  logbook: 2,
+  history: 3,
+  "developer-tools": 9,
+  configuration: 10,
+};
+
+const panelSorter = (a, b) => {
+  const aBuiltIn = a.component_name in SORT_VALUE;
+  const bBuiltIn = b.component_name in SORT_VALUE;
+
+  if (aBuiltIn && bBuiltIn) {
+    return SORT_VALUE[a.component_name] - SORT_VALUE[b.component_name];
+  }
+  if (aBuiltIn) {
+    return -1;
+  }
+  if (bBuiltIn) {
+    return 1;
+  }
+  // both not built in, sort by title
+  if (a.title! < b.title!) {
+    return -1;
+  }
+  if (a.title! > b.title!) {
+    return 1;
+  }
+  return 0;
+};
+
+const computePanels = (hass: HomeAssistant): [PanelInfo[], PanelInfo[]] => {
   const panels = hass.panels;
   if (!panels) {
-    return [];
+    return [[], []];
   }
 
-  const sortValue = {
-    map: 1,
-    logbook: 2,
-    history: 3,
-  };
-  const result: PanelInfo[] = Object.values(panels).filter(
-    (panel) => panel.title
-  );
+  const beforeSpacer: PanelInfo[] = [];
+  const afterSpacer: PanelInfo[] = [];
 
-  result.sort((a, b) => {
-    const aBuiltIn = a.component_name in sortValue;
-    const bBuiltIn = b.component_name in sortValue;
-
-    if (aBuiltIn && bBuiltIn) {
-      return sortValue[a.component_name] - sortValue[b.component_name];
+  Object.values(panels).forEach((panel) => {
+    if (!panel.title) {
+      return;
     }
-    if (aBuiltIn) {
-      return -1;
-    }
-    if (bBuiltIn) {
-      return 1;
-    }
-    // both not built in, sort by title
-    if (a.title! < b.title!) {
-      return -1;
-    }
-    if (a.title! > b.title!) {
-      return 1;
-    }
-    return 0;
+    (SHOW_AFTER_SPACER.includes(panel.component_name)
+      ? afterSpacer
+      : beforeSpacer
+    ).push(panel);
   });
 
-  return result;
+  beforeSpacer.sort(panelSorter);
+  afterSpacer.sort(panelSorter);
+
+  return [beforeSpacer, afterSpacer];
 };
 
 const renderPanel = (hass, panel) => html`
@@ -100,12 +116,7 @@ class HaSidebar extends LitElement {
       return html``;
     }
 
-    const panels = computePanels(hass);
-    const configPanelIdx = panels.findIndex(
-      (panel) => panel.component_name === "config"
-    );
-    const configPanel =
-      configPanelIdx === -1 ? undefined : panels.splice(configPanelIdx, 1)[0];
+    const [beforeSpacer, afterSpacer] = computePanels(hass);
 
     return html`
       ${this.expanded
@@ -137,69 +148,11 @@ class HaSidebar extends LitElement {
           </paper-icon-item>
         </a>
 
-        ${panels.map((panel) => renderPanel(hass, panel))}
+        ${beforeSpacer.map((panel) => renderPanel(hass, panel))}
 
         <div class="spacer" disabled></div>
 
-        ${this.expanded && hass.user && hass.user.is_admin
-          ? html`
-              <div class="divider" disabled></div>
-
-              <div class="subheader" disabled>
-                ${hass.localize("ui.sidebar.developer_tools")}
-              </div>
-
-              <div class="dev-tools" disabled>
-                <a href="/dev-service" tabindex="-1">
-                  <paper-icon-button
-                    icon="hass:remote"
-                    alt="${hass.localize("panel.dev-services")}"
-                    title="${hass.localize("panel.dev-services")}"
-                  ></paper-icon-button>
-                </a>
-                <a href="/dev-state" tabindex="-1">
-                  <paper-icon-button
-                    icon="hass:code-tags"
-                    alt="${hass.localize("panel.dev-states")}"
-                    title="${hass.localize("panel.dev-states")}"
-                  ></paper-icon-button>
-                </a>
-                <a href="/dev-event" tabindex="-1">
-                  <paper-icon-button
-                    icon="hass:radio-tower"
-                    alt="${hass.localize("panel.dev-events")}"
-                    title="${hass.localize("panel.dev-events")}"
-                  ></paper-icon-button>
-                </a>
-                <a href="/dev-template" tabindex="-1">
-                  <paper-icon-button
-                    icon="hass:file-xml"
-                    alt="${hass.localize("panel.dev-templates")}"
-                    title="${hass.localize("panel.dev-templates")}"
-                  ></paper-icon-button>
-                </a>
-                ${isComponentLoaded(hass, "mqtt")
-                  ? html`
-                      <a href="/dev-mqtt" tabindex="-1">
-                        <paper-icon-button
-                          icon="hass:altimeter"
-                          alt="${hass.localize("panel.dev-mqtt")}"
-                          title="${hass.localize("panel.dev-mqtt")}"
-                        ></paper-icon-button>
-                      </a>
-                    `
-                  : html``}
-                <a href="/dev-info" tabindex="-1">
-                  <paper-icon-button
-                    icon="hass:information-outline"
-                    alt="${hass.localize("panel.dev-info")}"
-                    title="${hass.localize("panel.dev-info")}"
-                  ></paper-icon-button>
-                </a>
-              </div>
-              <div class="divider" disabled></div>
-            `
-          : ""}
+        ${afterSpacer.map((panel) => renderPanel(hass, panel))}
         ${this._externalConfig && this._externalConfig.hasSettingsScreen
           ? html`
               <a
@@ -223,7 +176,6 @@ class HaSidebar extends LitElement {
               </a>
             `
           : ""}
-        ${configPanel ? renderPanel(hass, configPanel) : ""}
         ${hass.user
           ? html`
               <a
@@ -280,7 +232,6 @@ class HaSidebar extends LitElement {
     return (
       hass.panels !== oldHass.panels ||
       hass.panelUrl !== oldHass.panelUrl ||
-      hass.config.components !== oldHass.config.components ||
       hass.user !== oldHass.user ||
       hass.localize !== oldHass.localize
     );
@@ -458,12 +409,6 @@ class HaSidebar extends LitElement {
         pointer-events: none;
       }
 
-      .divider {
-        height: 1px;
-        background-color: var(--divider-color);
-        margin: 4px 0;
-      }
-
       .subheader {
         color: var(--sidebar-text-color);
         font-weight: 500;

src/layouts/partial-panel-resolver.ts

@@ -9,7 +9,7 @@ import {
 } from "./hass-router-page";
 import { removeInitSkeleton } from "../util/init-skeleton";
 
-const CACHE_COMPONENTS = ["lovelace", "states"];
+const CACHE_COMPONENTS = ["lovelace", "states", "developer-tools"];
 const COMPONENTS = {
   calendar: () =>
     import(/* webpackChunkName: "panel-calendar" */ "../panels/calendar/ha-panel-calendar"),
@@ -17,18 +17,8 @@ const COMPONENTS = {
     import(/* webpackChunkName: "panel-config" */ "../panels/config/ha-panel-config"),
   custom: () =>
     import(/* webpackChunkName: "panel-custom" */ "../panels/custom/ha-panel-custom"),
-  "dev-event": () =>
-    import(/* webpackChunkName: "panel-dev-event" */ "../panels/dev-event/ha-panel-dev-event"),
-  "dev-info": () =>
-    import(/* webpackChunkName: "panel-dev-info" */ "../panels/dev-info/ha-panel-dev-info"),
-  "dev-mqtt": () =>
-    import(/* webpackChunkName: "panel-dev-mqtt" */ "../panels/dev-mqtt/ha-panel-dev-mqtt"),
-  "dev-service": () =>
-    import(/* webpackChunkName: "panel-dev-service" */ "../panels/dev-service/ha-panel-dev-service"),
-  "dev-state": () =>
-    import(/* webpackChunkName: "panel-dev-state" */ "../panels/dev-state/ha-panel-dev-state"),
-  "dev-template": () =>
-    import(/* webpackChunkName: "panel-dev-template" */ "../panels/dev-template/ha-panel-dev-template"),
+  "developer-tools": () =>
+    import(/* webpackChunkName: "panel-developer-tools" */ "../panels/developer-tools/ha-panel-developer-tools"),
   lovelace: () =>
     import(/* webpackChunkName: "panel-lovelace" */ "../panels/lovelace/ha-panel-lovelace"),
   states: () =>
@@ -52,14 +42,17 @@ const COMPONENTS = {
 };
 
 const getRoutes = (panels: Panels): RouterOptions => {
-  const routes: { [route: string]: RouteOptions } = {};
+  const routes: RouterOptions["routes"] = {};
 
   Object.values(panels).forEach((panel) => {
-    routes[panel.url_path] = {
-      load: COMPONENTS[panel.component_name],
+    const data: RouteOptions = {
       tag: `ha-panel-${panel.component_name}`,
       cache: CACHE_COMPONENTS.includes(panel.component_name),
     };
+    if (panel.component_name in COMPONENTS) {
+      data.load = COMPONENTS[panel.component_name];
+    }
+    routes[panel.url_path] = data;
   });
 
   return {

src/panels/dev-info/ha-panel-dev-info.ts

@@ -1,221 +0,0 @@
-import {
-  LitElement,
-  html,
-  PropertyDeclarations,
-  CSSResult,
-  css,
-  TemplateResult,
-} from "lit-element";
-import "@polymer/app-layout/app-header-layout/app-header-layout";
-import "@polymer/app-layout/app-header/app-header";
-import "@polymer/app-layout/app-toolbar/app-toolbar";
-import "../../components/ha-menu-button";
-
-import { HomeAssistant } from "../../types";
-import { haStyle } from "../../resources/styles";
-
-import "./system-log-card";
-import "./error-log-card";
-import "./system-health-card";
-
-const JS_VERSION = __BUILD__;
-const OPT_IN_PANEL = "states";
-
-class HaPanelDevInfo extends LitElement {
-  public hass?: HomeAssistant;
-
-  static get properties(): PropertyDeclarations {
-    return {
-      hass: {},
-    };
-  }
-
-  protected render(): TemplateResult | void {
-    const hass = this.hass;
-    if (!hass) {
-      return html``;
-    }
-    const customUiList: Array<{ name: string; url: string; version: string }> =
-      (window as any).CUSTOM_UI_LIST || [];
-
-    const nonDefaultLink =
-      localStorage.defaultPage === OPT_IN_PANEL && OPT_IN_PANEL === "states"
-        ? "/lovelace"
-        : "/states";
-
-    const nonDefaultLinkText =
-      localStorage.defaultPage === OPT_IN_PANEL && OPT_IN_PANEL === "states"
-        ? "Go to the Lovelace UI"
-        : "Go to the states UI";
-
-    const defaultPageText = `${
-      localStorage.defaultPage === OPT_IN_PANEL ? "Remove" : "Set"
-    } ${OPT_IN_PANEL} as default page on this device`;
-
-    return html`
-      <app-header-layout has-scrolling-region>
-        <app-header slot="header" fixed>
-          <app-toolbar>
-            <ha-menu-button></ha-menu-button>
-            <div main-title>About</div>
-          </app-toolbar>
-        </app-header>
-
-        <div class="content">
-          <div class="about">
-            <p class="version">
-              <a href="https://www.home-assistant.io" target="_blank">
-                <img
-                  src="/static/icons/favicon-192x192.png"
-                  height="192"
-                  alt="Home Assistant logo"
-                />
-              </a>
-              <br />
-              Home Assistant<br />
-              ${hass.config.version}
-            </p>
-            <p>
-              Path to configuration.yaml: ${hass.config.config_dir}
-            </p>
-            <p class="develop">
-              <a
-                href="https://www.home-assistant.io/developers/credits/"
-                target="_blank"
-              >
-                Developed by a bunch of awesome people.
-              </a>
-            </p>
-            <p>
-              Published under the Apache 2.0 license<br />
-              Source:
-              <a
-                href="https://github.com/home-assistant/home-assistant"
-                target="_blank"
-                >server</a
-              >
-              &mdash;
-              <a
-                href="https://github.com/home-assistant/home-assistant-polymer"
-                target="_blank"
-                >frontend-ui</a
-              >
-            </p>
-            <p>
-              Built using
-              <a href="https://www.python.org">Python 3</a>,
-              <a href="https://www.polymer-project.org" target="_blank"
-                >Polymer</a
-              >, Icons by
-              <a href="https://www.google.com/design/icons/" target="_blank"
-                >Google</a
-              >
-              and
-              <a href="https://MaterialDesignIcons.com" target="_blank"
-                >MaterialDesignIcons.com</a
-              >.
-            </p>
-            <p>
-              Frontend JavaScript version: ${JS_VERSION}
-              ${customUiList.length > 0
-                ? html`
-                    <div>
-                      Custom UIs:
-                      ${customUiList.map(
-                        (item) => html`
-                          <div>
-                            <a href="${item.url}" target="_blank">
-                              ${item.name}</a
-                            >: ${item.version}
-                          </div>
-                        `
-                      )}
-                    </div>
-                  `
-                : ""}
-            </p>
-            <p>
-              <a href="${nonDefaultLink}">${nonDefaultLinkText}</a><br />
-              <mwc-button @click="${this._toggleDefaultPage}" raised>
-                ${defaultPageText}
-              </mwc-button>
-            </p>
-          </div>
-          <system-health-card .hass=${this.hass}></system-health-card>
-          <system-log-card .hass=${this.hass}></system-log-card>
-          <error-log-card .hass=${this.hass}></error-log-card>
-        </div>
-      </app-header-layout>
-    `;
-  }
-
-  protected firstUpdated(changedProps): void {
-    super.firstUpdated(changedProps);
-
-    // Legacy custom UI can be slow to register, give them time.
-    const customUI = ((window as any).CUSTOM_UI_LIST || []).length;
-    setTimeout(() => {
-      if (((window as any).CUSTOM_UI_LIST || []).length !== customUI.length) {
-        this.requestUpdate();
-      }
-    }, 1000);
-  }
-
-  protected _toggleDefaultPage(): void {
-    if (localStorage.defaultPage === OPT_IN_PANEL) {
-      delete localStorage.defaultPage;
-    } else {
-      localStorage.defaultPage = OPT_IN_PANEL;
-    }
-    this.requestUpdate();
-  }
-
-  static get styles(): CSSResult[] {
-    return [
-      haStyle,
-      css`
-        :host {
-          -ms-user-select: initial;
-          -webkit-user-select: initial;
-          -moz-user-select: initial;
-        }
-
-        .content {
-          padding: 16px 0px 16px 0;
-          direction: ltr;
-        }
-
-        .about {
-          text-align: center;
-          line-height: 2em;
-        }
-
-        .version {
-          @apply --paper-font-headline;
-        }
-
-        .develop {
-          @apply --paper-font-subhead;
-        }
-
-        .about a {
-          color: var(--dark-primary-color);
-        }
-
-        system-health-card {
-          display: block;
-          max-width: 600px;
-          margin: 0 auto;
-        }
-      `,
-    ];
-  }
-}
-
-declare global {
-  interface HTMLElementTagNameMap {
-    "ha-panel-dev-info": HaPanelDevInfo;
-  }
-}
-
-customElements.define("ha-panel-dev-info", HaPanelDevInfo);

src/panels/developer-tools/developer-tools-router.ts

@@ -0,0 +1,68 @@
+import { HassRouterPage, RouterOptions } from "../../layouts/hass-router-page";
+import { customElement, property } from "lit-element";
+import { PolymerElement } from "@polymer/polymer";
+import { HomeAssistant } from "../../types";
+
+@customElement("developer-tools-router")
+class DeveloperToolsRouter extends HassRouterPage {
+  @property() public hass!: HomeAssistant;
+  @property() public narrow!: boolean;
+
+  protected routerOptions: RouterOptions = {
+    // defaultPage: "info",
+    beforeRender: (page) => {
+      if (!page || page === "not_found") {
+        // If we can, we are going to restore the last visited page.
+        return this._currentPage ? this._currentPage : "info";
+      }
+      return undefined;
+    },
+    cacheAll: true,
+    showLoading: true,
+    routes: {
+      event: {
+        tag: "developer-tools-event",
+        load: () => import("./event/developer-tools-event"),
+      },
+      info: {
+        tag: "developer-tools-info",
+        load: () => import("./info/developer-tools-info"),
+      },
+      mqtt: {
+        tag: "developer-tools-mqtt",
+        load: () => import("./mqtt/developer-tools-mqtt"),
+      },
+      service: {
+        tag: "developer-tools-service",
+        load: () => import("./service/developer-tools-service"),
+      },
+      state: {
+        tag: "developer-tools-state",
+        load: () => import("./state/developer-tools-state"),
+      },
+      template: {
+        tag: "developer-tools-template",
+        load: () => import("./template/developer-tools-template"),
+      },
+    },
+  };
+
+  protected updatePageEl(el) {
+    if ("setProperties" in el) {
+      // As long as we have Polymer pages
+      (el as PolymerElement).setProperties({
+        hass: this.hass,
+        narrow: this.narrow,
+      });
+    } else {
+      el.hass = this.hass;
+      el.narrow = this.narrow;
+    }
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "developer-tools-router": DeveloperToolsRouter;
+  }
+}

src/panels/developer-tools/event/developer-tools-event.js

@@ -1,6 +1,3 @@
-import "@polymer/app-layout/app-header-layout/app-header-layout";
-import "@polymer/app-layout/app-header/app-header";
-import "@polymer/app-layout/app-toolbar/app-toolbar";
 import "@polymer/iron-flex-layout/iron-flex-layout-classes";
 import "@material/mwc-button";
 import "@polymer/paper-input/paper-input";
@@ -8,11 +5,10 @@ import "@polymer/paper-input/paper-textarea";
 import { html } from "@polymer/polymer/lib/utils/html-tag";
 import { PolymerElement } from "@polymer/polymer/polymer-element";
 
-import "../../components/ha-menu-button";
-import "../../resources/ha-style";
+import "../../../resources/ha-style";
 import "./events-list";
 import "./event-subscribe-card";
-import { EventsMixin } from "../../mixins/events-mixin";
+import { EventsMixin } from "../../../mixins/events-mixin";
 
 /*
  * @appliesMixin EventsMixin
@@ -26,12 +22,10 @@ class HaPanelDevEvent extends EventsMixin(PolymerElement) {
           -ms-user-select: initial;
           -webkit-user-select: initial;
           -moz-user-select: initial;
-        }
-
-        .content {
           @apply --paper-font-body1;
           padding: 16px;
           direction: ltr;
+          display: block;
         }
 
         .ha-form {
@@ -49,45 +43,34 @@ class HaPanelDevEvent extends EventsMixin(PolymerElement) {
         }
       </style>
 
-      <app-header-layout has-scrolling-region>
-        <app-header slot="header" fixed>
-          <app-toolbar>
-            <ha-menu-button></ha-menu-button>
-            <div main-title>Events</div>
-          </app-toolbar>
-        </app-header>
+      <div class$="[[computeFormClasses(narrow)]]">
+        <div class="flex">
+          <p>Fire an event on the event bus.</p>
 
-        <div class="content">
-          <div class$="[[computeFormClasses(narrow)]]">
-            <div class="flex">
-              <p>Fire an event on the event bus.</p>
-
-              <div class="ha-form">
-                <paper-input
-                  label="Event Type"
-                  autofocus
-                  required
-                  value="{{eventType}}"
-                ></paper-input>
-                <paper-textarea
-                  label="Event Data (JSON, optional)"
-                  value="{{eventData}}"
-                ></paper-textarea>
-                <mwc-button on-click="fireEvent" raised>Fire Event</mwc-button>
-              </div>
-            </div>
-
-            <div>
-              <div class="header">Available Events</div>
-              <events-list
-                on-event-selected="eventSelected"
-                hass="[[hass]]"
-              ></events-list>
-            </div>
+          <div class="ha-form">
+            <paper-input
+              label="Event Type"
+              autofocus
+              required
+              value="{{eventType}}"
+            ></paper-input>
+            <paper-textarea
+              label="Event Data (JSON, optional)"
+              value="{{eventData}}"
+            ></paper-textarea>
+            <mwc-button on-click="fireEvent" raised>Fire Event</mwc-button>
           </div>
-          <event-subscribe-card hass="[[hass]]"></event-subscribe-card>
         </div>
-      </app-header-layout>
+
+        <div>
+          <div class="header">Available Events</div>
+          <events-list
+            on-event-selected="eventSelected"
+            hass="[[hass]]"
+          ></events-list>
+        </div>
+      </div>
+      <event-subscribe-card hass="[[hass]]"></event-subscribe-card>
     `;
   }
 
@@ -139,4 +122,4 @@ class HaPanelDevEvent extends EventsMixin(PolymerElement) {
   }
 }
 
-customElements.define("ha-panel-dev-event", HaPanelDevEvent);
+customElements.define("developer-tools-event", HaPanelDevEvent);

src/panels/developer-tools/event/event-subscribe-card.ts

@@ -10,10 +10,10 @@ import {
 import "@material/mwc-button";
 import "@polymer/paper-input/paper-input";
 import { HassEvent } from "home-assistant-js-websocket";
-import { HomeAssistant } from "../../types";
-import { PolymerChangedEvent } from "../../polymer-types";
-import "../../components/ha-card";
-import format_time from "../../common/datetime/format_time";
+import { HomeAssistant } from "../../../types";
+import { PolymerChangedEvent } from "../../../polymer-types";
+import "../../../components/ha-card";
+import format_time from "../../../common/datetime/format_time";
 
 @customElement("event-subscribe-card")
 class EventSubscribeCard extends LitElement {

src/panels/developer-tools/event/events-list.js

@@ -1,7 +1,7 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
 import { PolymerElement } from "@polymer/polymer/polymer-element";
 
-import { EventsMixin } from "../../mixins/events-mixin";
+import { EventsMixin } from "../../../mixins/events-mixin";
 
 /*
  * @appliesMixin EventsMixin

src/panels/developer-tools/ha-panel-developer-tools.ts

@@ -0,0 +1,121 @@
+import {
+  LitElement,
+  TemplateResult,
+  html,
+  CSSResultArray,
+  css,
+  customElement,
+  property,
+} from "lit-element";
+import "@polymer/app-layout/app-header-layout/app-header-layout";
+import "@polymer/app-layout/app-header/app-header";
+import "@polymer/app-layout/app-toolbar/app-toolbar";
+import "@polymer/paper-icon-button/paper-icon-button";
+import "@polymer/paper-tabs/paper-tab";
+import "@polymer/paper-tabs/paper-tabs";
+
+import "../../components/ha-menu-button";
+import "../../resources/ha-style";
+import "./developer-tools-router";
+
+import scrollToTarget from "../../common/dom/scroll-to-target";
+
+import { haStyle } from "../../resources/styles";
+import { HomeAssistant, Route } from "../../types";
+import { navigate } from "../../common/navigate";
+import isComponentLoaded from "../../common/config/is_component_loaded";
+
+@customElement("ha-panel-developer-tools")
+class PanelDeveloperTools extends LitElement {
+  @property() public hass!: HomeAssistant;
+  @property() public route!: Route;
+  @property() public narrow!: boolean;
+
+  protected render(): TemplateResult | void {
+    const page = this._page;
+    return html`
+      <app-header-layout has-scrolling-region>
+        <app-header fixed slot="header">
+          <app-toolbar>
+            <ha-menu-button></ha-menu-button>
+            <div main-title>Developer Tools</div>
+          </app-toolbar>
+          <paper-tabs
+            scrollable
+            attr-for-selected="page-name"
+            .selected=${page}
+            @iron-activate=${this.handlePageSelected}
+          >
+            <paper-tab page-name="info">
+              ${this.hass.localize("panel.dev-info")}
+            </paper-tab>
+            <paper-tab page-name="event">
+              ${this.hass.localize("panel.dev-events")}
+            </paper-tab>
+            ${isComponentLoaded(this.hass, "mqtt")
+              ? html`
+                  <paper-tab page-name="mqtt">
+                    ${this.hass.localize("panel.dev-mqtt")}
+                  </paper-tab>
+                `
+              : ""}
+            <paper-tab page-name="service">
+              ${this.hass.localize("panel.dev-services")}
+            </paper-tab>
+            <paper-tab page-name="state">
+              ${this.hass.localize("panel.dev-states")}
+            </paper-tab>
+            <paper-tab page-name="template">
+              ${this.hass.localize("panel.dev-templates")}
+            </paper-tab>
+          </paper-tabs>
+        </app-header>
+        <developer-tools-router
+          .route=${this.route}
+          .narrow=${this.narrow}
+          .hass=${this.hass}
+        ></developer-tools-router>
+      </app-header-layout>
+    `;
+  }
+
+  private handlePageSelected(ev) {
+    const newPage = ev.detail.item.getAttribute("page-name");
+    if (newPage !== this._page) {
+      navigate(this, `/developer-tools/${newPage}`);
+    }
+
+    scrollToTarget(
+      this,
+      // @ts-ignore
+      this.shadowRoot!.querySelector("app-header-layout").header.scrollTarget
+    );
+  }
+
+  private get _page() {
+    return this.route.path.substr(1);
+  }
+
+  static get styles(): CSSResultArray {
+    return [
+      haStyle,
+      css`
+        :host {
+          color: var(--primary-text-color);
+          --paper-card-header-color: var(--primary-text-color);
+        }
+        paper-tabs {
+          margin-left: 12px;
+          --paper-tabs-selection-bar-color: #fff;
+          text-transform: uppercase;
+        }
+      `,
+    ];
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "ha-panel-developer-tools": PanelDeveloperTools;
+  }
+}

src/panels/developer-tools/info/developer-tools-info.ts

@@ -0,0 +1,194 @@
+import {
+  LitElement,
+  html,
+  CSSResult,
+  css,
+  TemplateResult,
+  property,
+} from "lit-element";
+
+import { HomeAssistant } from "../../../types";
+import { haStyle } from "../../../resources/styles";
+
+import "./system-log-card";
+import "./error-log-card";
+import "./system-health-card";
+
+const JS_VERSION = __BUILD__;
+const OPT_IN_PANEL = "states";
+
+class HaPanelDevInfo extends LitElement {
+  @property() public hass!: HomeAssistant;
+
+  protected render(): TemplateResult | void {
+    const hass = this.hass;
+    const customUiList: Array<{ name: string; url: string; version: string }> =
+      (window as any).CUSTOM_UI_LIST || [];
+
+    const nonDefaultLink =
+      localStorage.defaultPage === OPT_IN_PANEL && OPT_IN_PANEL === "states"
+        ? "/lovelace"
+        : "/states";
+
+    const nonDefaultLinkText =
+      localStorage.defaultPage === OPT_IN_PANEL && OPT_IN_PANEL === "states"
+        ? "Go to the Lovelace UI"
+        : "Go to the states UI";
+
+    const defaultPageText = `${
+      localStorage.defaultPage === OPT_IN_PANEL ? "Remove" : "Set"
+    } ${OPT_IN_PANEL} as default page on this device`;
+
+    return html`
+      <div class="about">
+        <p class="version">
+          <a href="https://www.home-assistant.io" target="_blank"
+            ><img
+              src="/static/icons/favicon-192x192.png"
+              height="192"
+              alt="Home Assistant logo"
+          /></a>
+          <br />
+          Home Assistant<br />
+          ${hass.config.version}
+        </p>
+        <p>
+          Path to configuration.yaml: ${hass.config.config_dir}
+        </p>
+        <p class="develop">
+          <a
+            href="https://www.home-assistant.io/developers/credits/"
+            target="_blank"
+          >
+            Developed by a bunch of awesome people.
+          </a>
+        </p>
+        <p>
+          Published under the Apache 2.0 license<br />
+          Source:
+          <a
+            href="https://github.com/home-assistant/home-assistant"
+            target="_blank"
+            >server</a
+          >
+          &mdash;
+          <a
+            href="https://github.com/home-assistant/home-assistant-polymer"
+            target="_blank"
+            >frontend-ui</a
+          >
+        </p>
+        <p>
+          Built using
+          <a href="https://www.python.org">Python 3</a>,
+          <a href="https://www.polymer-project.org" target="_blank">Polymer</a>,
+          Icons by
+          <a href="https://www.google.com/design/icons/" target="_blank"
+            >Google</a
+          >
+          and
+          <a href="https://MaterialDesignIcons.com" target="_blank"
+            >MaterialDesignIcons.com</a
+          >.
+        </p>
+        <p>
+          Frontend JavaScript version: ${JS_VERSION}
+          ${customUiList.length > 0
+            ? html`
+                <div>
+                  Custom UIs:
+                  ${customUiList.map(
+                    (item) => html`
+                      <div>
+                        <a href="${item.url}" target="_blank"> ${item.name}</a>:
+                        ${item.version}
+                      </div>
+                    `
+                  )}
+                </div>
+              `
+            : ""}
+        </p>
+        <p>
+          <a href="${nonDefaultLink}">${nonDefaultLinkText}</a><br />
+          <mwc-button @click="${this._toggleDefaultPage}" raised>
+            ${defaultPageText}
+          </mwc-button>
+        </p>
+      </div>
+      <system-health-card .hass=${this.hass}></system-health-card>
+      <system-log-card .hass=${this.hass}></system-log-card>
+      <error-log-card .hass=${this.hass}></error-log-card>
+    `;
+  }
+
+  protected firstUpdated(changedProps): void {
+    super.firstUpdated(changedProps);
+
+    // Legacy custom UI can be slow to register, give them time.
+    const customUI = ((window as any).CUSTOM_UI_LIST || []).length;
+    setTimeout(() => {
+      if (((window as any).CUSTOM_UI_LIST || []).length !== customUI.length) {
+        this.requestUpdate();
+      }
+    }, 1000);
+  }
+
+  protected _toggleDefaultPage(): void {
+    if (localStorage.defaultPage === OPT_IN_PANEL) {
+      delete localStorage.defaultPage;
+    } else {
+      localStorage.defaultPage = OPT_IN_PANEL;
+    }
+    this.requestUpdate();
+  }
+
+  static get styles(): CSSResult[] {
+    return [
+      haStyle,
+      css`
+        :host {
+          -ms-user-select: initial;
+          -webkit-user-select: initial;
+          -moz-user-select: initial;
+        }
+
+        .content {
+          padding: 16px 0px 16px 0;
+          direction: ltr;
+        }
+
+        .about {
+          text-align: center;
+          line-height: 2em;
+        }
+
+        .version {
+          @apply --paper-font-headline;
+        }
+
+        .develop {
+          @apply --paper-font-subhead;
+        }
+
+        .about a {
+          color: var(--dark-primary-color);
+        }
+
+        system-health-card {
+          display: block;
+          max-width: 600px;
+          margin: 0 auto;
+        }
+      `,
+    ];
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "developer-tools-info": HaPanelDevInfo;
+  }
+}
+
+customElements.define("developer-tools-info", HaPanelDevInfo);

src/panels/developer-tools/info/dialog-system-log-detail.ts

@@ -8,11 +8,11 @@ import {
 } from "lit-element";
 import "@polymer/paper-dialog-scrollable/paper-dialog-scrollable";
 
-import "../../components/dialog/ha-paper-dialog";
+import "../../../components/dialog/ha-paper-dialog";
 
 import { SystemLogDetailDialogParams } from "./show-dialog-system-log-detail";
-import { PolymerChangedEvent } from "../../polymer-types";
-import { haStyleDialog } from "../../resources/styles";
+import { PolymerChangedEvent } from "../../../polymer-types";
+import { haStyleDialog } from "../../../resources/styles";
 
 class DialogSystemLogDetail extends LitElement {
   private _params?: SystemLogDetailDialogParams;

src/panels/developer-tools/info/error-log-card.ts

@@ -9,8 +9,8 @@ import {
 import "@polymer/paper-icon-button/paper-icon-button";
 import "@material/mwc-button";
 
-import { HomeAssistant } from "../../types";
-import { fetchErrorLog } from "../../data/error_log";
+import { HomeAssistant } from "../../../types";
+import { fetchErrorLog } from "../../../data/error_log";
 
 class ErrorLogCard extends LitElement {
   public hass?: HomeAssistant;

src/panels/developer-tools/info/show-dialog-system-log-detail.ts

@@ -1,5 +1,5 @@
-import { fireEvent } from "../../common/dom/fire_event";
-import { LoggedError } from "../../data/system_log";
+import { fireEvent } from "../../../common/dom/fire_event";
+import { LoggedError } from "../../../data/system_log";
 
 declare global {
   // for fire event

src/panels/developer-tools/info/system-health-card.ts

@@ -7,13 +7,13 @@ import {
   TemplateResult,
 } from "lit-element";
 import "@polymer/paper-spinner/paper-spinner";
-import "../../components/ha-card";
+import "../../../components/ha-card";
 
-import { HomeAssistant } from "../../types";
+import { HomeAssistant } from "../../../types";
 import {
   SystemHealthInfo,
   fetchSystemHealthInfo,
-} from "../../data/system_health";
+} from "../../../data/system_health";
 
 const sortKeys = (a: string, b: string) => {
   if (a === "homeassistant") {

src/panels/developer-tools/info/system-log-card.ts

@@ -10,13 +10,13 @@ import "@polymer/paper-icon-button/paper-icon-button";
 import "@polymer/paper-item/paper-item-body";
 import "@polymer/paper-item/paper-item";
 import "@polymer/paper-spinner/paper-spinner";
-import "../../components/ha-card";
-import "../../components/buttons/ha-call-service-button";
-import "../../components/buttons/ha-progress-button";
-import { HomeAssistant } from "../../types";
-import { LoggedError, fetchSystemLog } from "../../data/system_log";
-import formatDateTime from "../../common/datetime/format_date_time";
-import formatTime from "../../common/datetime/format_time";
+import "../../../components/ha-card";
+import "../../../components/buttons/ha-call-service-button";
+import "../../../components/buttons/ha-progress-button";
+import { HomeAssistant } from "../../../types";
+import { LoggedError, fetchSystemLog } from "../../../data/system_log";
+import formatDateTime from "../../../common/datetime/format_date_time";
+import formatTime from "../../../common/datetime/format_time";
 import { showSystemLogDetailDialog } from "./show-dialog-system-log-detail";
 
 const formatLogTime = (date, language: string) => {

src/panels/developer-tools/mqtt/developer-tools-mqtt.js

@@ -7,10 +7,10 @@ import "@polymer/paper-input/paper-textarea";
 import { html } from "@polymer/polymer/lib/utils/html-tag";
 import { PolymerElement } from "@polymer/polymer/polymer-element";
 
-import "../../components/ha-card";
-import "../../components/ha-menu-button";
-import "../../resources/ha-style";
-import "../../util/app-localstorage-document";
+import "../../../components/ha-card";
+import "../../../components/ha-menu-button";
+import "../../../resources/ha-style";
+import "../../../util/app-localstorage-document";
 
 class HaPanelDevMqtt extends PolymerElement {
   static get template() {
@@ -86,4 +86,4 @@ class HaPanelDevMqtt extends PolymerElement {
   }
 }
 
-customElements.define("ha-panel-dev-mqtt", HaPanelDevMqtt);
+customElements.define("developer-tools-mqtt", HaPanelDevMqtt);

src/panels/developer-tools/service/developer-tools-service.js

@@ -1,17 +1,13 @@
-import "@polymer/app-layout/app-header-layout/app-header-layout";
-import "@polymer/app-layout/app-header/app-header";
-import "@polymer/app-layout/app-toolbar/app-toolbar";
 import "@material/mwc-button";
 import "@polymer/paper-input/paper-textarea";
 import { html } from "@polymer/polymer/lib/utils/html-tag";
 import { PolymerElement } from "@polymer/polymer/polymer-element";
 
-import { ENTITY_COMPONENT_DOMAINS } from "../../data/entity";
-import "../../components/entity/ha-entity-picker";
-import "../../components/ha-menu-button";
-import "../../components/ha-service-picker";
-import "../../resources/ha-style";
-import "../../util/app-localstorage-document";
+import { ENTITY_COMPONENT_DOMAINS } from "../../../data/entity";
+import "../../../components/entity/ha-entity-picker";
+import "../../../components/ha-service-picker";
+import "../../../resources/ha-style";
+import "../../../util/app-localstorage-document";
 
 const ERROR_SENTINEL = {};
 class HaPanelDevService extends PolymerElement {
@@ -22,9 +18,7 @@ class HaPanelDevService extends PolymerElement {
           -ms-user-select: initial;
           -webkit-user-select: initial;
           -moz-user-select: initial;
-        }
-
-        .content {
+          display: block;
           padding: 16px;
           direction: ltr;
         }
@@ -81,100 +75,87 @@ class HaPanelDevService extends PolymerElement {
         }
       </style>
 
-      <app-header-layout has-scrolling-region>
-        <app-header slot="header" fixed>
-          <app-toolbar>
-            <ha-menu-button></ha-menu-button>
-            <div main-title>Services</div>
-          </app-toolbar>
-        </app-header>
+      <app-localstorage-document
+        key="panel-dev-service-state-domain-service"
+        data="{{domainService}}"
+      >
+      </app-localstorage-document>
+      <app-localstorage-document
+        key="[[_computeServicedataKey(domainService)]]"
+        data="{{serviceData}}"
+      >
+      </app-localstorage-document>
 
-        <app-localstorage-document
-          key="panel-dev-service-state-domain-service"
-          data="{{domainService}}"
-        >
-        </app-localstorage-document>
-        <app-localstorage-document
-          key="[[_computeServicedataKey(domainService)]]"
-          data="{{serviceData}}"
-        >
-        </app-localstorage-document>
+      <div class="content">
+        <p>
+          The service dev tool allows you to call any available service in Home
+          Assistant.
+        </p>
 
-        <div class="content">
-          <p>
-            The service dev tool allows you to call any available service in
-            Home Assistant.
-          </p>
-
-          <div class="ha-form">
-            <ha-service-picker
+        <div class="ha-form">
+          <ha-service-picker
+            hass="[[hass]]"
+            value="{{domainService}}"
+          ></ha-service-picker>
+          <template is="dom-if" if="[[_computeHasEntity(_attributes)]]">
+            <ha-entity-picker
               hass="[[hass]]"
-              value="{{domainService}}"
-            ></ha-service-picker>
-            <template is="dom-if" if="[[_computeHasEntity(_attributes)]]">
-              <ha-entity-picker
-                hass="[[hass]]"
-                value="[[_computeEntityValue(parsedJSON)]]"
-                on-change="_entityPicked"
-                disabled="[[!validJSON]]"
-                domain-filter="[[_computeEntityDomainFilter(_domain)]]"
-                allow-custom-entity
-              ></ha-entity-picker>
-            </template>
-            <paper-textarea
-              always-float-label
-              label="Service Data (JSON, optional)"
-              value="{{serviceData}}"
-              autocapitalize="none"
-              autocomplete="off"
-              spellcheck="false"
-            ></paper-textarea>
-            <mwc-button on-click="_callService" raised disabled="[[!validJSON]]"
-              >Call Service</mwc-button
-            >
-            <template is="dom-if" if="[[!validJSON]]">
-              <span class="error">Invalid JSON</span>
-            </template>
-          </div>
-
-          <template is="dom-if" if="[[!domainService]]">
-            <h1>Select a service to see the description</h1>
+              value="[[_computeEntityValue(parsedJSON)]]"
+              on-change="_entityPicked"
+              disabled="[[!validJSON]]"
+              domain-filter="[[_computeEntityDomainFilter(_domain)]]"
+              allow-custom-entity
+            ></ha-entity-picker>
           </template>
-
-          <template is="dom-if" if="[[domainService]]">
-            <template is="dom-if" if="[[!_description]]">
-              <h1>No description is available</h1>
-            </template>
-            <template is="dom-if" if="[[_description]]">
-              <h3>[[_description]]</h3>
-
-              <table class="attributes">
-                <tr>
-                  <th>Parameter</th>
-                  <th>Description</th>
-                  <th>Example</th>
-                </tr>
-                <template is="dom-if" if="[[!_attributes.length]]">
-                  <tr>
-                    <td colspan="3">This service takes no parameters.</td>
-                  </tr>
-                </template>
-                <template
-                  is="dom-repeat"
-                  items="[[_attributes]]"
-                  as="attribute"
-                >
-                  <tr>
-                    <td><pre>[[attribute.key]]</pre></td>
-                    <td>[[attribute.description]]</td>
-                    <td>[[attribute.example]]</td>
-                  </tr>
-                </template>
-              </table>
-            </template>
+          <paper-textarea
+            always-float-label
+            label="Service Data (JSON, optional)"
+            value="{{serviceData}}"
+            autocapitalize="none"
+            autocomplete="off"
+            spellcheck="false"
+          ></paper-textarea>
+          <mwc-button on-click="_callService" raised disabled="[[!validJSON]]"
+            >Call Service</mwc-button
+          >
+          <template is="dom-if" if="[[!validJSON]]">
+            <span class="error">Invalid JSON</span>
           </template>
         </div>
-      </app-header-layout>
+
+        <template is="dom-if" if="[[!domainService]]">
+          <h1>Select a service to see the description</h1>
+        </template>
+
+        <template is="dom-if" if="[[domainService]]">
+          <template is="dom-if" if="[[!_description]]">
+            <h1>No description is available</h1>
+          </template>
+          <template is="dom-if" if="[[_description]]">
+            <h3>[[_description]]</h3>
+
+            <table class="attributes">
+              <tr>
+                <th>Parameter</th>
+                <th>Description</th>
+                <th>Example</th>
+              </tr>
+              <template is="dom-if" if="[[!_attributes.length]]">
+                <tr>
+                  <td colspan="3">This service takes no parameters.</td>
+                </tr>
+              </template>
+              <template is="dom-repeat" items="[[_attributes]]" as="attribute">
+                <tr>
+                  <td><pre>[[attribute.key]]</pre></td>
+                  <td>[[attribute.description]]</td>
+                  <td>[[attribute.example]]</td>
+                </tr>
+              </template>
+            </table>
+          </template>
+        </template>
+      </div>
     `;
   }
 
@@ -304,4 +285,4 @@ class HaPanelDevService extends PolymerElement {
   }
 }
 
-customElements.define("ha-panel-dev-service", HaPanelDevService);
+customElements.define("developer-tools-service", HaPanelDevService);

src/panels/developer-tools/state/developer-tools-state.js

@@ -1,6 +1,3 @@
-import "@polymer/app-layout/app-header-layout/app-header-layout";
-import "@polymer/app-layout/app-header/app-header";
-import "@polymer/app-layout/app-toolbar/app-toolbar";
 import "@material/mwc-button";
 import "@polymer/paper-checkbox/paper-checkbox";
 import "@polymer/paper-input/paper-input";
@@ -8,10 +5,9 @@ import "@polymer/paper-input/paper-textarea";
 import { html } from "@polymer/polymer/lib/utils/html-tag";
 import { PolymerElement } from "@polymer/polymer/polymer-element";
 
-import "../../components/entity/ha-entity-picker";
-import "../../components/ha-menu-button";
-import "../../resources/ha-style";
-import { EventsMixin } from "../../mixins/events-mixin";
+import "../../../components/entity/ha-entity-picker";
+import "../../../resources/ha-style";
+import { EventsMixin } from "../../../mixins/events-mixin";
 
 /*
  * @appliesMixin EventsMixin
@@ -24,9 +20,7 @@ class HaPanelDevState extends EventsMixin(PolymerElement) {
           -ms-user-select: initial;
           -webkit-user-select: initial;
           -moz-user-select: initial;
-        }
-
-        .content {
+          display: block;
           padding: 16px;
           direction: ltr;
         }
@@ -70,107 +64,96 @@ class HaPanelDevState extends EventsMixin(PolymerElement) {
         }
       </style>
 
-      <app-header-layout has-scrolling-region>
-        <app-header slot="header" fixed>
-          <app-toolbar>
-            <ha-menu-button></ha-menu-button>
-            <div main-title>States</div>
-          </app-toolbar>
-        </app-header>
+      <div>
+        <p>
+          Set the representation of a device within Home Assistant.<br />
+          This will not communicate with the actual device.
+        </p>
 
-        <div class="content">
-          <div>
-            <p>
-              Set the representation of a device within Home Assistant.<br />
-              This will not communicate with the actual device.
-            </p>
+        <ha-entity-picker
+          autofocus
+          hass="[[hass]]"
+          value="{{_entityId}}"
+          allow-custom-entity
+        ></ha-entity-picker>
+        <paper-input
+          label="State"
+          required
+          autocapitalize="none"
+          autocomplete="off"
+          autocorrect="off"
+          spellcheck="false"
+          value="{{_state}}"
+          class="state-input"
+        ></paper-input>
+        <paper-textarea
+          label="State attributes (JSON, optional)"
+          autocapitalize="none"
+          autocomplete="off"
+          spellcheck="false"
+          value="{{_stateAttributes}}"
+        ></paper-textarea>
+        <mwc-button on-click="handleSetState" raised>Set State</mwc-button>
+      </div>
 
-            <ha-entity-picker
-              autofocus
-              hass="[[hass]]"
-              value="{{_entityId}}"
-              allow-custom-entity
-            ></ha-entity-picker>
+      <h1>Current entities</h1>
+      <table class="entities">
+        <tr>
+          <th>Entity</th>
+          <th>State</th>
+          <th hidden$="[[narrow]]">
+            Attributes
+            <paper-checkbox checked="{{_showAttributes}}"></paper-checkbox>
+          </th>
+        </tr>
+        <tr>
+          <th>
             <paper-input
-              label="State"
-              required
-              autocapitalize="none"
-              autocomplete="off"
-              autocorrect="off"
-              spellcheck="false"
-              value="{{_state}}"
-              class="state-input"
+              label="Filter entities"
+              type="search"
+              value="{{_entityFilter}}"
             ></paper-input>
-            <paper-textarea
-              label="State attributes (JSON, optional)"
-              autocapitalize="none"
-              autocomplete="off"
-              spellcheck="false"
-              value="{{_stateAttributes}}"
-            ></paper-textarea>
-            <mwc-button on-click="handleSetState" raised>Set State</mwc-button>
-          </div>
-
-          <h1>Current entities</h1>
-          <table class="entities">
-            <tr>
-              <th>Entity</th>
-              <th>State</th>
-              <th hidden$="[[narrow]]">
-                Attributes
-                <paper-checkbox checked="{{_showAttributes}}"></paper-checkbox>
-              </th>
-            </tr>
-            <tr>
-              <th>
-                <paper-input
-                  label="Filter entities"
-                  type="search"
-                  value="{{_entityFilter}}"
-                ></paper-input>
-              </th>
-              <th>
-                <paper-input
-                  label="Filter states"
-                  type="search"
-                  value="{{_stateFilter}}"
-                ></paper-input>
-              </th>
-              <th hidden$="[[!computeShowAttributes(narrow, _showAttributes)]]">
-                <paper-input
-                  label="Filter attributes"
-                  type="search"
-                  value="{{_attributeFilter}}"
-                ></paper-input>
-              </th>
-            </tr>
-            <tr hidden$="[[!computeShowEntitiesPlaceholder(_entities)]]">
-              <td colspan="3">No entities</td>
-            </tr>
-            <template is="dom-repeat" items="[[_entities]]" as="entity">
-              <tr>
-                <td>
-                  <paper-icon-button
-                    on-click="entityMoreInfo"
-                    icon="hass:open-in-new"
-                    alt="More Info"
-                    title="More Info"
-                  >
-                  </paper-icon-button>
-                  <a href="#" on-click="entitySelected">[[entity.entity_id]]</a>
-                </td>
-                <td>[[entity.state]]</td>
-                <template
-                  is="dom-if"
-                  if="[[computeShowAttributes(narrow, _showAttributes)]]"
-                >
-                  <td>[[attributeString(entity)]]</td>
-                </template>
-              </tr>
+          </th>
+          <th>
+            <paper-input
+              label="Filter states"
+              type="search"
+              value="{{_stateFilter}}"
+            ></paper-input>
+          </th>
+          <th hidden$="[[!computeShowAttributes(narrow, _showAttributes)]]">
+            <paper-input
+              label="Filter attributes"
+              type="search"
+              value="{{_attributeFilter}}"
+            ></paper-input>
+          </th>
+        </tr>
+        <tr hidden$="[[!computeShowEntitiesPlaceholder(_entities)]]">
+          <td colspan="3">No entities</td>
+        </tr>
+        <template is="dom-repeat" items="[[_entities]]" as="entity">
+          <tr>
+            <td>
+              <paper-icon-button
+                on-click="entityMoreInfo"
+                icon="hass:open-in-new"
+                alt="More Info"
+                title="More Info"
+              >
+              </paper-icon-button>
+              <a href="#" on-click="entitySelected">[[entity.entity_id]]</a>
+            </td>
+            <td>[[entity.state]]</td>
+            <template
+              is="dom-if"
+              if="[[computeShowAttributes(narrow, _showAttributes)]]"
+            >
+              <td>[[attributeString(entity)]]</td>
             </template>
-          </table>
-        </div>
-      </app-header-layout>
+          </tr>
+        </template>
+      </table>
     `;
   }
 
@@ -351,4 +334,4 @@ class HaPanelDevState extends EventsMixin(PolymerElement) {
   }
 }
 
-customElements.define("ha-panel-dev-state", HaPanelDevState);
+customElements.define("developer-tools-state", HaPanelDevState);

src/panels/developer-tools/template/developer-tools-template.js

@@ -1,6 +1,3 @@
-import "@polymer/app-layout/app-header-layout/app-header-layout";
-import "@polymer/app-layout/app-header/app-header";
-import "@polymer/app-layout/app-toolbar/app-toolbar";
 import "@polymer/paper-input/paper-textarea";
 import "@polymer/paper-spinner/paper-spinner";
 import { timeOut } from "@polymer/polymer/lib/utils/async";
@@ -8,8 +5,7 @@ import { Debouncer } from "@polymer/polymer/lib/utils/debounce";
 import { html } from "@polymer/polymer/lib/utils/html-tag";
 import { PolymerElement } from "@polymer/polymer/polymer-element";
 
-import "../../components/ha-menu-button";
-import "../../resources/ha-style";
+import "../../../resources/ha-style";
 
 class HaPanelDevTemplate extends PolymerElement {
   static get template() {
@@ -67,52 +63,43 @@ class HaPanelDevTemplate extends PolymerElement {
         }
       </style>
 
-      <app-header-layout has-scrolling-region>
-        <app-header slot="header" fixed>
-          <app-toolbar>
-            <ha-menu-button></ha-menu-button>
-            <div main-title>Templates</div>
-          </app-toolbar>
-        </app-header>
-
-        <div class$="[[computeFormClasses(narrow)]]">
-          <div class="edit-pane">
-            <p>
-              Templates are rendered using the Jinja2 template engine with some
-              Home Assistant specific extensions.
-            </p>
-            <ul>
-              <li>
-                <a
-                  href="http://jinja.pocoo.org/docs/dev/templates/"
-                  target="_blank"
-                  >Jinja2 template documentation</a
-                >
-              </li>
-              <li>
-                <a
-                  href="https://home-assistant.io/docs/configuration/templating/"
-                  target="_blank"
-                  >Home Assistant template extensions</a
-                >
-              </li>
-            </ul>
-            <paper-textarea
-              label="Template editor"
-              value="{{template}}"
-              autofocus
-            ></paper-textarea>
-          </div>
-
-          <div class="render-pane">
-            <paper-spinner
-              class="render-spinner"
-              active="[[rendering]]"
-            ></paper-spinner>
-            <pre class$="[[computeRenderedClasses(error)]]">[[processed]]</pre>
-          </div>
+      <div class$="[[computeFormClasses(narrow)]]">
+        <div class="edit-pane">
+          <p>
+            Templates are rendered using the Jinja2 template engine with some
+            Home Assistant specific extensions.
+          </p>
+          <ul>
+            <li>
+              <a
+                href="http://jinja.pocoo.org/docs/dev/templates/"
+                target="_blank"
+                >Jinja2 template documentation</a
+              >
+            </li>
+            <li>
+              <a
+                href="https://home-assistant.io/docs/configuration/templating/"
+                target="_blank"
+                >Home Assistant template extensions</a
+              >
+            </li>
+          </ul>
+          <paper-textarea
+            label="Template editor"
+            value="{{template}}"
+            autofocus
+          ></paper-textarea>
         </div>
-      </app-header-layout>
+
+        <div class="render-pane">
+          <paper-spinner
+            class="render-spinner"
+            active="[[rendering]]"
+          ></paper-spinner>
+          <pre class$="[[computeRenderedClasses(error)]]">[[processed]]</pre>
+        </div>
+      </div>
     `;
   }
 
@@ -207,4 +194,4 @@ For loop example:
   }
 }
 
-customElements.define("ha-panel-dev-template", HaPanelDevTemplate);
+customElements.define("developer-tools-template", HaPanelDevTemplate);