Implement allow_negative for duration selector (#28909)

src/components/ha-duration-input.ts

@@ -1,9 +1,11 @@
+import { mdiMinusThick, mdiPlusThick } from "@mdi/js";
 import type { TemplateResult } from "lit";
-import { html, LitElement } from "lit";
+import { css, html, LitElement, nothing } from "lit";
 import { customElement, property } from "lit/decorators";
 import { fireEvent } from "../common/dom/fire_event";
 import "./ha-base-time-input";
 import type { TimeChangedEvent } from "./ha-base-time-input";
+import "./ha-button-toggle-group";
 
 export interface HaDurationData {
   days?: number;
@@ -13,6 +15,8 @@ export interface HaDurationData {
   milliseconds?: number;
 }
 
+const FIELDS = ["milliseconds", "seconds", "minutes", "hours", "days"];
+
 @customElement("ha-duration-input")
 class HaDurationInput extends LitElement {
   @property({ attribute: false }) public data?: HaDurationData;
@@ -29,41 +33,80 @@ class HaDurationInput extends LitElement {
   @property({ attribute: "enable-day", type: Boolean })
   public enableDay = false;
 
+  @property({ attribute: "allow-negative", type: Boolean })
+  public allowNegative = false;
+
   @property({ type: Boolean }) public disabled = false;
 
+  private _toggleNegative = false;
+
   protected render(): TemplateResult {
     return html`
-      <ha-base-time-input
-        .label=${this.label}
-        .helper=${this.helper}
-        .required=${this.required}
-        .clearable=${!this.required && this.data !== undefined}
-        .autoValidate=${this.required}
-        .disabled=${this.disabled}
-        errorMessage="Required"
-        enable-second
-        .enableMillisecond=${this.enableMillisecond}
-        .enableDay=${this.enableDay}
-        format="24"
-        .days=${this._days}
-        .hours=${this._hours}
-        .minutes=${this._minutes}
-        .seconds=${this._seconds}
-        .milliseconds=${this._milliseconds}
-        @value-changed=${this._durationChanged}
-        no-hours-limit
-        day-label="dd"
-        hour-label="hh"
-        min-label="mm"
-        sec-label="ss"
-        ms-label="ms"
-      ></ha-base-time-input>
+      <div class="row">
+        ${this.allowNegative
+          ? html`
+              <ha-button-toggle-group
+                size="small"
+                .buttons=${[
+                  { label: "+", iconPath: mdiPlusThick, value: "+" },
+                  { label: "-", iconPath: mdiMinusThick, value: "-" },
+                ]}
+                .active=${this._negative ? "-" : "+"}
+                @value-changed=${this._negativeChanged}
+              ></ha-button-toggle-group>
+            `
+          : nothing}
+        <ha-base-time-input
+          .label=${this.label}
+          .helper=${this.helper}
+          .required=${this.required}
+          .clearable=${!this.required && this.data !== undefined}
+          .autoValidate=${this.required}
+          .disabled=${this.disabled}
+          errorMessage="Required"
+          enable-second
+          .enableMillisecond=${this.enableMillisecond}
+          .enableDay=${this.enableDay}
+          format="24"
+          .days=${this._days}
+          .hours=${this._hours}
+          .minutes=${this._minutes}
+          .seconds=${this._seconds}
+          .milliseconds=${this._milliseconds}
+          @value-changed=${this._durationChanged}
+          no-hours-limit
+          day-label="dd"
+          hour-label="hh"
+          min-label="mm"
+          sec-label="ss"
+          ms-label="ms"
+        ></ha-base-time-input>
+      </div>
     `;
   }
 
+  private get _negative() {
+    return (
+      this._toggleNegative ||
+      (this.data?.days
+        ? this.data.days < 0
+        : this.data?.hours
+          ? this.data.hours < 0
+          : this.data?.minutes
+            ? this.data.minutes < 0
+            : this.data?.seconds
+              ? this.data.seconds < 0
+              : this.data?.milliseconds
+                ? this.data.milliseconds < 0
+                : false)
+    );
+  }
+
   private get _days() {
     return this.data?.days
-      ? Number(this.data.days)
+      ? this.allowNegative
+        ? Math.abs(Number(this.data.days))
+        : Number(this.data.days)
       : this.required || this.data
         ? 0
         : NaN;
@@ -71,7 +114,9 @@ class HaDurationInput extends LitElement {
 
   private get _hours() {
     return this.data?.hours
-      ? Number(this.data.hours)
+      ? this.allowNegative
+        ? Math.abs(Number(this.data.hours))
+        : Number(this.data.hours)
       : this.required || this.data
         ? 0
         : NaN;
@@ -79,7 +124,9 @@ class HaDurationInput extends LitElement {
 
   private get _minutes() {
     return this.data?.minutes
-      ? Number(this.data.minutes)
+      ? this.allowNegative
+        ? Math.abs(Number(this.data.minutes))
+        : Number(this.data.minutes)
       : this.required || this.data
         ? 0
         : NaN;
@@ -87,7 +134,9 @@ class HaDurationInput extends LitElement {
 
   private get _seconds() {
     return this.data?.seconds
-      ? Number(this.data.seconds)
+      ? this.allowNegative
+        ? Math.abs(Number(this.data.seconds))
+        : Number(this.data.seconds)
       : this.required || this.data
         ? 0
         : NaN;
@@ -95,7 +144,9 @@ class HaDurationInput extends LitElement {
 
   private get _milliseconds() {
     return this.data?.milliseconds
-      ? Number(this.data.milliseconds)
+      ? this.allowNegative
+        ? Math.abs(Number(this.data.milliseconds))
+        : Number(this.data.milliseconds)
       : this.required || this.data
         ? 0
         : NaN;
@@ -113,6 +164,14 @@ class HaDurationInput extends LitElement {
       if ("days" in value) value.days ||= 0;
       if ("milliseconds" in value) value.milliseconds ||= 0;
 
+      if (this.allowNegative) {
+        FIELDS.forEach((t) => {
+          if (value[t]) {
+            value[t] = Math.abs(value[t]);
+          }
+        });
+      }
+
       if (!this.enableMillisecond && !value.milliseconds) {
         // @ts-ignore
         delete value.milliseconds;
@@ -135,12 +194,47 @@ class HaDurationInput extends LitElement {
         value.days = (value.days ?? 0) + Math.floor(value.hours / 24);
         value.hours %= 24;
       }
+
+      if (this._negative) {
+        FIELDS.forEach((t) => {
+          if (value[t]) {
+            value[t] = -Math.abs(value[t]);
+          }
+        });
+      }
     }
 
     fireEvent(this, "value-changed", {
       value,
     });
   }
+
+  private _negativeChanged(ev) {
+    ev.stopPropagation();
+    const negative = (ev.detail?.value || ev.target.value) === "-";
+    this._toggleNegative = negative;
+    const value = this.data;
+    if (value) {
+      FIELDS.forEach((t) => {
+        if (value[t]) {
+          value[t] = negative ? -Math.abs(value[t]) : Math.abs(value[t]);
+        }
+      });
+      fireEvent(this, "value-changed", {
+        value,
+      });
+    }
+  }
+
+  static styles = css`
+    .row {
+      display: flex;
+      align-items: center;
+    }
+    ha-button-toggle-group {
+      margin: var(--ha-space-2);
+    }
+  `;
 }
 
 declare global {

src/components/ha-selector/ha-selector-duration.ts

@@ -65,6 +65,7 @@ export class HaTimeDuration extends LitElement {
         .required=${this.required}
         .enableDay=${this.selector.duration?.enable_day}
         .enableMillisecond=${this.selector.duration?.enable_millisecond}
+        .allowNegative=${this.selector.duration?.allow_negative}
       ></ha-duration-input>
     `;
   }

src/data/selector.ts

@@ -221,6 +221,7 @@ export interface DurationSelector {
   duration: {
     enable_day?: boolean;
     enable_millisecond?: boolean;
+    allow_negative?: boolean;
   } | null;
 }