Convert hui-markdown-card to TypeScript/LitElement

src/panels/lovelace/cards/hui-markdown-card.ts

@@ -0,0 +1,86 @@
+import { html, LitElement } from "@polymer/lit-element";
+
+import "../../../components/ha-card.js";
+import "../../../components/ha-markdown.js";
+
+import { HassLocalizeLitMixin } from "../../../mixins/lit-localize-mixin";
+import { LovelaceCard, LovelaceConfig } from "../types.js";
+
+interface Config extends LovelaceConfig {
+  content: string;
+  title?: string;
+}
+
+export class HuiMarkdownCard extends HassLocalizeLitMixin(LitElement)
+  implements LovelaceCard {
+  protected config?: Config;
+
+  static get properties() {
+    return {
+      config: {},
+    };
+  }
+
+  public getCardSize() {
+    return this.config!.content.split("\n").length;
+  }
+
+  public setConfig(config: Config) {
+    if (!config.content) {
+      throw new Error("Invalid Configuration: Content Required");
+    }
+
+    this.config = config;
+  }
+
+  protected render() {
+    if (!this.config) {
+      return html``;
+    }
+
+    return html`
+      ${this.renderStyle()}
+      <ha-card .header="${this.config.title}">
+        <ha-markdown .content="${this.config.content}"></ha-markdown>
+      </ha-card>
+    `;
+  }
+
+  private renderStyle() {
+    return html`
+      <style>
+        :host {
+          @apply --paper-font-body1;
+        }
+        ha-markdown {
+          display: block;
+          padding: 0 16px 16px;
+          padding-top: ${this.config!.title ? '0' : '16px'};
+          -ms-user-select: initial;
+          -webkit-user-select: initial;
+          -moz-user-select: initial;
+        }
+        ha-markdown > *:first-child {
+          margin-top: 0;
+        }
+        ha-markdown > *:last-child {
+          margin-bottom: 0;
+        }
+        ha-markdown a {
+          color: var(--primary-color);
+        }
+        ha-markdown img {
+          max-width: 100%;
+        }
+      </style>
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "hui-markdown-card": HuiMarkdownCard;
+  }
+}
+
+customElements.define("hui-markdown-card", HuiMarkdownCard);

src/panels/lovelace/common/create-card-element.js

@@ -11,7 +11,7 @@ import "../cards/hui-history-graph-card.js";
 import "../cards/hui-horizontal-stack-card.js";
 import "../cards/hui-iframe-card.ts";
 import "../cards/hui-map-card.js";
-import "../cards/hui-markdown-card.js";
+import "../cards/hui-markdown-card.ts";
 import "../cards/hui-media-control-card.js";
 import "../cards/hui-picture-card.js";
 import "../cards/hui-picture-elements-card";