From 27379c98df8c5e9e91ebeef7fce931186f4b01bc Mon Sep 17 00:00:00 2001
From: ildar170975 <71872483+ildar170975@users.noreply.github.com>
Date: Wed, 19 Mar 2025 09:46:14 +0300
Subject: [PATCH] history-graph: do not set "max-width" for a single legend
 item (#24683)

* do not set "max-width" for a single legend item

* prettier
---
 src/components/chart/ha-chart-base.ts | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/src/components/chart/ha-chart-base.ts b/src/components/chart/ha-chart-base.ts
index bbf2fcacd7..f98856cf96 100644
--- a/src/components/chart/ha-chart-base.ts
+++ b/src/components/chart/ha-chart-base.ts
@@ -226,7 +226,12 @@ export class HaChartBase extends LitElement {
     const overflowLimit = isMobile
       ? LEGEND_OVERFLOW_LIMIT_MOBILE
       : LEGEND_OVERFLOW_LIMIT;
-    return html`<div class="chart-legend">
+    return html`<div
+      class=${classMap({
+        "chart-legend": true,
+        "multiple-items": items.length > 1,
+      })}
+    >
       <ul>
         ${items.map((item: string, index: number) => {
           if (!this.expandLegend && index >= overflowLimit) {
@@ -262,7 +267,9 @@ export class HaChartBase extends LitElement {
                   ? this.hass.localize(
                       "ui.components.history_charts.collapse_legend"
                     )
-                  : `${this.hass.localize("ui.components.history_charts.expand_legend")} (${items.length - overflowLimit})`}
+                  : `${this.hass.localize(
+                      "ui.components.history_charts.expand_legend"
+                    )} (${items.length - overflowLimit})`}
               >
                 <ha-svg-icon
                   slot="trailing-icon"
@@ -727,10 +734,10 @@ export class HaChartBase extends LitElement {
       align-items: center;
       padding: 0 2px;
       box-sizing: border-box;
-      max-width: 220px;
-      text-overflow: ellipsis;
       overflow: hidden;
-      white-space: nowrap;
+    }
+    .chart-legend.multiple-items li {
+      max-width: 220px;
     }
     .chart-legend .hidden {
       color: var(--secondary-text-color);