From 5c84ce2b8d77615dfb9519bb7ed6a80adfe58456 Mon Sep 17 00:00:00 2001
From: plainheart <yhen@all-my-life.cn>
Date: Mon, 8 Jul 2024 18:40:53 +0800
Subject: [PATCH] fix(legend): fix legend action is not isolated from other
 legend components (resolves #20128)

---
 src/component/legend/LegendView.ts   |  3 ++-
 src/component/legend/legendAction.ts | 28 ++++++++++++++++++----------
 2 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/src/component/legend/LegendView.ts b/src/component/legend/LegendView.ts
index 35b0779f2b9..90164682405 100644
--- a/src/component/legend/LegendView.ts
+++ b/src/component/legend/LegendView.ts
@@ -329,7 +329,8 @@ class LegendView extends ComponentView {
                 },
                 onclick() {
                     api.dispatchAction({
-                        type: type === 'all' ? 'legendAllSelect' : 'legendInverseSelect'
+                        type: type === 'all' ? 'legendAllSelect' : 'legendInverseSelect',
+                        legendId: legendModel.id
                     });
                 }
             });
diff --git a/src/component/legend/legendAction.ts b/src/component/legend/legendAction.ts
index 04ed3723a88..225a18d34f6 100644
--- a/src/component/legend/legendAction.ts
+++ b/src/component/legend/legendAction.ts
@@ -17,16 +17,23 @@
 * under the License.
 */
 
-// @ts-nocheck
+import {curry, each, hasOwn} from 'zrender/src/core/util';
+import { EChartsExtensionInstallRegisters } from '../../extension';
+import { Payload } from '../../util/types';
+import type GlobalModel from '../../model/Global';
+import type LegendModel from './LegendModel';
 
-import {curry, each} from 'zrender/src/core/util';
+type LegendSelectMethodNames =
+    'select' | 'unSelect' |
+    'toggleSelected' | 'toggleSelected' |
+    'allSelect' | 'inverseSelect';
 
-function legendSelectActionHandler(methodName, payload, ecModel) {
-    const selectedMap = {};
+function legendSelectActionHandler(methodName: LegendSelectMethodNames, payload: Payload, ecModel: GlobalModel) {
+    const selectedMap: Record<string, boolean> = {};
     const isToggleSelect = methodName === 'toggleSelected';
-    let isSelected;
-    // Update all legend components
-    ecModel.eachComponent('legend', function (legendModel) {
+    let isSelected: boolean;
+    const legendModels = ecModel.findComponents({ mainType: 'legend', query: payload }) as LegendModel[];
+    each(legendModels, function (legendModel: LegendModel) {
         if (isToggleSelect && isSelected != null) {
             // Force other legend has same selected status
             // Or the first is toggled to true and other are toggled to false
@@ -49,7 +56,7 @@ function legendSelectActionHandler(methodName, payload, ecModel) {
                 return;
             }
             const isItemSelected = legendModel.isSelected(name);
-            if (selectedMap.hasOwnProperty(name)) {
+            if (hasOwn(selectedMap, name)) {
                 // Unselected if any legend is unselected
                 selectedMap[name] = selectedMap[name] && isItemSelected;
             }
@@ -58,6 +65,7 @@ function legendSelectActionHandler(methodName, payload, ecModel) {
             }
         });
     });
+
     // Return the event explicitly
     return (methodName === 'allSelect' || methodName === 'inverseSelect')
         ? {
@@ -69,7 +77,7 @@ function legendSelectActionHandler(methodName, payload, ecModel) {
         };
 }
 
-export function installLegendAction(registers) {
+export function installLegendAction(registers: EChartsExtensionInstallRegisters) {
     /**
      * @event legendToggleSelect
      * @type {Object}
@@ -113,4 +121,4 @@ export function installLegendAction(registers) {
         'legendUnSelect', 'legendunselected',
         curry(legendSelectActionHandler, 'unSelect')
     );
-}
\ No newline at end of file
+}