Enable reorder mode for choose options (#17422)

src/panels/config/automation/action/types/ha-automation-action-choose.ts

@@ -1,7 +1,13 @@
 import { consume } from "@lit-labs/context";
-import { mdiDelete, mdiPlus } from "@mdi/js";
+import type { SortableEvent } from "sortablejs";
+import { mdiDelete, mdiPlus, mdiArrowUp, mdiArrowDown, mdiDrag } from "@mdi/js";
 import { CSSResultGroup, LitElement, PropertyValues, css, html } from "lit";
 import { customElement, property, state } from "lit/decorators";
+import { repeat } from "lit/directives/repeat";
+import {
+  loadSortable,
+  SortableInstance,
+} from "../../../../../resources/sortable.ondemand";
 import { ensureArray } from "../../../../../common/array/ensure-array";
 import { fireEvent } from "../../../../../common/dom/fire_event";
 import "../../../../../components/ha-button";
@@ -14,6 +20,7 @@ import { ActionElement } from "../ha-automation-action-row";
 import { describeCondition } from "../../../../../data/automation_i18n";
 import { fullEntitiesContext } from "../../../../../data/context";
 import { EntityRegistryEntry } from "../../../../../data/entity_registry";
+import { sortableStyles } from "../../../../../resources/ha-sortable-style";
 
 @customElement("ha-automation-action-choose")
 export class HaChooseAction extends LitElement implements ActionElement {
@@ -27,59 +34,30 @@ export class HaChooseAction extends LitElement implements ActionElement {
 
   @state() private _showDefault = false;
 
-  @state() private expandedUpdateFlag = false;
+  @state() private _expandedStates: boolean[] = [];
 
   @state()
   @consume({ context: fullEntitiesContext, subscribe: true })
   _entityReg!: EntityRegistryEntry[];
 
+  private _expandLast = false;
+
+  private _sortable?: SortableInstance;
+
   public static get defaultConfig() {
     return { choose: [{ conditions: [], sequence: [] }] };
   }
 
-  protected willUpdate(changedProperties: PropertyValues) {
+  private _expandedChanged(ev) {
-    if (!changedProperties.has("action")) {
+    this._expandedStates = this._expandedStates.concat();
-      return;
+    this._expandedStates[ev.target!.index] = ev.detail.expanded;
-    }
-
-    const oldCnt =
-      changedProperties.get("action") === undefined ||
-      changedProperties.get("action").choose === undefined
-        ? 0
-        : ensureArray(changedProperties.get("action").choose).length;
-    const newCnt = this.action.choose
-      ? ensureArray(this.action.choose).length
-      : 0;
-    if (newCnt === oldCnt + 1) {
-      this.expand(newCnt - 1);
-    }
-  }
-
-  private expand(i: number) {
-    this.updateComplete.then(() => {
-      this.shadowRoot!.querySelectorAll("ha-expansion-panel")[i].expanded =
-        true;
-      this.expandedUpdateFlag = !this.expandedUpdateFlag;
-    });
-  }
-
-  private isExpanded(i: number) {
-    const nodes = this.shadowRoot!.querySelectorAll("ha-expansion-panel");
-    if (nodes[i]) {
-      return nodes[i].expanded;
-    }
-    return false;
-  }
-
-  private _expandedChanged() {
-    this.expandedUpdateFlag = !this.expandedUpdateFlag;
   }
 
   private _getDescription(option, idx: number) {
     if (option.alias) {
       return option.alias;
     }
-    if (this.isExpanded(idx)) {
+    if (this._expandedStates[idx]) {
       return "";
     }
     const conditions = ensureArray(option.conditions);
@@ -108,10 +86,14 @@ export class HaChooseAction extends LitElement implements ActionElement {
     const action = this.action;
 
     return html`
-      ${(action.choose ? ensureArray(action.choose) : []).map(
+      <div class="options">
+        ${repeat(
+          action.choose ? ensureArray(action.choose) : [],
+          (option) => option,
           (option, idx) =>
             html`<ha-card>
               <ha-expansion-panel
+                .index=${idx}
                 leftChevron
                 @expanded-changed=${this._expandedChanged}
               >
@@ -123,7 +105,34 @@ export class HaChooseAction extends LitElement implements ActionElement {
                   )}:
                   ${this._getDescription(option, idx)}
                 </h3>
-
+                ${this.reOrderMode
+                  ? html`
+                      <ha-icon-button
+                        .index=${idx}
+                        slot="icons"
+                        .label=${this.hass.localize(
+                          "ui.panel.config.automation.editor.move_up"
+                        )}
+                        .path=${mdiArrowUp}
+                        @click=${this._moveUp}
+                        .disabled=${idx === 0}
+                      ></ha-icon-button>
+                      <ha-icon-button
+                        .index=${idx}
+                        slot="icons"
+                        .label=${this.hass.localize(
+                          "ui.panel.config.automation.editor.move_down"
+                        )}
+                        .path=${mdiArrowDown}
+                        @click=${this._moveDown}
+                        .disabled=${idx ===
+                        ensureArray(this.action.choose).length - 1}
+                      ></ha-icon-button>
+                      <div class="handle" slot="icons">
+                        <ha-svg-icon .path=${mdiDrag}></ha-svg-icon>
+                      </div>
+                    `
+                  : html`
                       <ha-icon-button
                         slot="icons"
                         .idx=${idx}
@@ -134,6 +143,7 @@ export class HaChooseAction extends LitElement implements ActionElement {
                         )}
                         .path=${mdiDelete}
                       ></ha-icon-button>
+                    `}
                 <div class="card-content">
                   <h4>
                     ${this.hass.localize(
@@ -169,6 +179,7 @@ export class HaChooseAction extends LitElement implements ActionElement {
               </ha-expansion-panel>
             </ha-card>`
         )}
+      </div>
       <ha-button
         outlined
         .label=${this.hass.localize(
@@ -209,6 +220,30 @@ export class HaChooseAction extends LitElement implements ActionElement {
     `;
   }
 
+  protected firstUpdated() {
+    ensureArray(this.action.choose).forEach(() =>
+      this._expandedStates.push(false)
+    );
+  }
+
+  protected updated(changedProps: PropertyValues) {
+    super.updated(changedProps);
+
+    if (changedProps.has("reOrderMode")) {
+      if (this.reOrderMode) {
+        this._createSortable();
+      } else {
+        this._destroySortable();
+      }
+    }
+
+    if (this._expandLast) {
+      const nodes = this.shadowRoot!.querySelectorAll("ha-expansion-panel");
+      nodes[nodes.length - 1].expanded = true;
+      this._expandLast = false;
+    }
+  }
+
   private _addDefault() {
     this._showDefault = true;
   }
@@ -247,6 +282,38 @@ export class HaChooseAction extends LitElement implements ActionElement {
     fireEvent(this, "value-changed", {
       value: { ...this.action, choose },
     });
+    this._expandLast = true;
+    this._expandedStates[choose.length - 1] = true;
+  }
+
+  private _moveUp(ev) {
+    const index = (ev.target as any).index;
+    const newIndex = index - 1;
+    this._move(index, newIndex);
+  }
+
+  private _moveDown(ev) {
+    const index = (ev.target as any).index;
+    const newIndex = index + 1;
+    this._move(index, newIndex);
+  }
+
+  private _dragged(ev: SortableEvent): void {
+    if (ev.oldIndex === ev.newIndex) return;
+    this._move(ev.oldIndex!, ev.newIndex!);
+  }
+
+  private _move(index: number, newIndex: number) {
+    const options = ensureArray(this.action.choose)!.concat();
+    const item = options.splice(index, 1)[0];
+    options.splice(newIndex, 0, item);
+
+    const expanded = this._expandedStates.splice(index, 1)[0];
+    this._expandedStates.splice(newIndex, 0, expanded);
+
+    fireEvent(this, "value-changed", {
+      value: { ...this.action, choose: options },
+    });
   }
 
   private _removeOption(ev: CustomEvent) {
@@ -255,6 +322,7 @@ export class HaChooseAction extends LitElement implements ActionElement {
       ? [...ensureArray(this.action.choose)]
       : [];
     choose.splice(index, 1);
+    this._expandedStates.splice(index, 1);
     fireEvent(this, "value-changed", {
       value: { ...this.action, choose },
     });
@@ -271,9 +339,37 @@ export class HaChooseAction extends LitElement implements ActionElement {
     });
   }
 
+  private async _createSortable() {
+    const Sortable = await loadSortable();
+    this._sortable = new Sortable(this.shadowRoot!.querySelector(".options")!, {
+      animation: 150,
+      fallbackClass: "sortable-fallback",
+      handle: ".handle",
+      onChoose: (evt: SortableEvent) => {
+        (evt.item as any).placeholder =
+          document.createComment("sort-placeholder");
+        evt.item.after((evt.item as any).placeholder);
+      },
+      onEnd: (evt: SortableEvent) => {
+        // put back in original location
+        if ((evt.item as any).placeholder) {
+          (evt.item as any).placeholder.replaceWith(evt.item);
+          delete (evt.item as any).placeholder;
+        }
+        this._dragged(evt);
+      },
+    });
+  }
+
+  private _destroySortable() {
+    this._sortable?.destroy();
+    this._sortable = undefined;
+  }
+
   static get styles(): CSSResultGroup {
     return [
       haStyle,
+      sortableStyles,
       css`
         ha-card {
           margin: 0 0 16px 0;
@@ -292,8 +388,6 @@ export class HaChooseAction extends LitElement implements ActionElement {
           font-weight: inherit;
         }
         ha-icon-button {
-          position: absolute;
-          right: 0;
           inset-inline-start: initial;
           inset-inline-end: 0;
           direction: var(--direction);
@@ -307,6 +401,14 @@ export class HaChooseAction extends LitElement implements ActionElement {
         .card-content {
           padding: 0 16px 16px 16px;
         }
+        .handle {
+          cursor: move;
+          padding: 12px;
+        }
+        .handle ha-svg-icon {
+          pointer-events: none;
+          height: 24px;
+        }
       `,
     ];
   }