chore: Notify user of custom label colors and related Dashboard color…

… scheme (apache#17422)

* Add alert for custom label colors

* Fix duplicate linear scheme

* Implement dashboard alert

* Remove trailing space

* Update Cypress

* Simplify check

superset-frontend/cypress-base/cypress/integration/explore/visualizations/line.test.ts

@@ -71,7 +71,7 @@ describe('Visualization > Line', () => {
       .focus()
       .type('bnbColors{enter}');
     cy.get(
-      '.Control[data-test="color_scheme"] .ant-select-selection-item > ul[data-test="bnbColors"]',
+      '.Control[data-test="color_scheme"] .ant-select-selection-item ul[data-test="bnbColors"]',
     ).should('exist');
   });
 

superset-frontend/src/dashboard/components/ColorSchemeControlWrapper.jsx

@@ -27,9 +27,11 @@ const propTypes = {
   onChange: PropTypes.func,
   labelMargin: PropTypes.number,
   colorScheme: PropTypes.string,
+  hasCustomLabelColors: PropTypes.bool,
 };
 
 const defaultProps = {
+  hasCustomLabelColors: false,
   colorScheme: undefined,
   onChange: () => {},
 };
@@ -48,13 +50,12 @@ class ColorSchemeControlWrapper extends React.PureComponent {
   }
 
   render() {
-    const { colorScheme, labelMargin = 0 } = this.props;
+    const { colorScheme, labelMargin = 0, hasCustomLabelColors } = this.props;
     return (
       <ColorSchemeControl
         description={t(
           "Any color palette selected here will override the colors applied to this dashboard's individual charts",
         )}
-        label={t('Color scheme')}
         labelMargin={labelMargin}
         name="color_scheme"
         onChange={this.props.onChange}
@@ -63,6 +64,7 @@ class ColorSchemeControlWrapper extends React.PureComponent {
         clearable
         schemes={this.schemes}
         hovered={this.state.hovered}
+        hasCustomLabelColors={hasCustomLabelColors}
       />
     );
   }

superset-frontend/src/dashboard/components/PropertiesModal/index.jsx

@@ -132,20 +132,30 @@ class PropertiesModal extends React.PureComponent {
     this.onColorSchemeChange = this.onColorSchemeChange.bind(this);
     this.getRowsWithRoles = this.getRowsWithRoles.bind(this);
     this.getRowsWithoutRoles = this.getRowsWithoutRoles.bind(this);
+    this.getJsonMetadata = this.getJsonMetadata.bind(this);
   }
 
   componentDidMount() {
     this.fetchDashboardDetails();
     JsonEditor.preload();
   }
 
+  getJsonMetadata() {
+    const { json_metadata: jsonMetadata } = this.state.values;
+    try {
+      const jsonMetadataObj = jsonMetadata?.length
+        ? JSON.parse(jsonMetadata)
+        : {};
+      return jsonMetadataObj;
+    } catch (_) {
+      return {};
+    }
+  }
+
   onColorSchemeChange(colorScheme, { updateMetadata = true } = {}) {
     // check that color_scheme is valid
     const colorChoices = getCategoricalSchemeRegistry().keys();
-    const { json_metadata: jsonMetadata } = this.state.values;
-    const jsonMetadataObj = jsonMetadata?.length
-      ? JSON.parse(jsonMetadata)
-      : {};
+    const jsonMetadataObj = this.getJsonMetadata();
 
     // only fire if the color_scheme is present and invalid
     if (colorScheme && !colorChoices.includes(colorScheme)) {
@@ -318,6 +328,11 @@ class PropertiesModal extends React.PureComponent {
 
   getRowsWithoutRoles() {
     const { values, isDashboardLoaded } = this.state;
+    const jsonMetadataObj = this.getJsonMetadata();
+    const hasCustomLabelColors = !!Object.keys(
+      jsonMetadataObj?.label_colors || {},
+    ).length;
+
     return (
       <Row gutter={16}>
         <Col xs={24} md={12}>
@@ -343,6 +358,7 @@ class PropertiesModal extends React.PureComponent {
         <Col xs={24} md={12}>
           <h3 style={{ marginTop: '1em' }}>{t('Colors')}</h3>
           <ColorSchemeControlWrapper
+            hasCustomLabelColors={hasCustomLabelColors}
             onChange={this.onColorSchemeChange}
             colorScheme={values.colorScheme}
             labelMargin={4}
@@ -354,6 +370,11 @@ class PropertiesModal extends React.PureComponent {
 
   getRowsWithRoles() {
     const { values, isDashboardLoaded } = this.state;
+    const jsonMetadataObj = this.getJsonMetadata();
+    const hasCustomLabelColors = !!Object.keys(
+      jsonMetadataObj?.label_colors || {},
+    ).length;
+
     return (
       <>
         <Row>
@@ -404,6 +425,7 @@ class PropertiesModal extends React.PureComponent {
         <Row>
           <Col xs={24} md={12}>
             <ColorSchemeControlWrapper
+              hasCustomLabelColors={hasCustomLabelColors}
               onChange={this.onColorSchemeChange}
               colorScheme={values.colorScheme}
               labelMargin={4}

superset-frontend/src/explore/components/controls/ColorSchemeControl/ColorSchemeControl.test.tsx

@@ -0,0 +1,68 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import React from 'react';
+import { render, screen, waitFor } from 'spec/helpers/testing-library';
+import ColorSchemeControl from '.';
+
+const defaultProps = {
+  hasCustomLabelColors: false,
+  label: 'Color scheme',
+  labelMargin: 0,
+  name: 'color',
+  value: 'supersetDefault',
+  clearable: true,
+  choices: [],
+  schemes: () => null,
+  isLinear: false,
+};
+
+const setup = (overrides?: Record<string, any>) =>
+  render(<ColorSchemeControl {...defaultProps} {...overrides} />);
+
+test('should render', async () => {
+  const { container } = setup();
+  await waitFor(() => expect(container).toBeVisible());
+});
+
+test('should display a label', async () => {
+  setup();
+  expect(await screen.findByText('Color scheme')).toBeTruthy();
+});
+
+test('should not display an alert icon if hasCustomLabelColors=false', async () => {
+  setup();
+  await waitFor(() => {
+    expect(
+      screen.queryByRole('img', { name: 'alert-solid' }),
+    ).not.toBeInTheDocument();
+  });
+});
+
+test('should display an alert icon if hasCustomLabelColors=true', async () => {
+  const hasCustomLabelColorsProps = {
+    ...defaultProps,
+    hasCustomLabelColors: true,
+  };
+  setup(hasCustomLabelColorsProps);
+  await waitFor(() => {
+    expect(
+      screen.getByRole('img', { name: 'alert-solid' }),
+    ).toBeInTheDocument();
+  });
+});

superset-frontend/src/explore/components/controls/ColorSchemeControl.jsx → superset-frontend/src/explore/components/controls/ColorSchemeControl/index.jsx

@@ -21,12 +21,15 @@ import PropTypes from 'prop-types';
 import { isFunction } from 'lodash';
 import { Select } from 'src/components';
 import { Tooltip } from 'src/components/Tooltip';
-import { t } from '@superset-ui/core';
-import ControlHeader from '../ControlHeader';
+import { styled, t } from '@superset-ui/core';
+import Icons from 'src/components/Icons';
+import ControlHeader from 'src/explore/components/ControlHeader';
 
 const propTypes = {
+  hasCustomLabelColors: PropTypes.bool,
+  dashboardId: PropTypes.number,
   description: PropTypes.string,
-  label: PropTypes.string.isRequired,
+  label: PropTypes.string,
   labelMargin: PropTypes.number,
   name: PropTypes.string.isRequired,
   onChange: PropTypes.func,
@@ -43,16 +46,27 @@ const propTypes = {
 
 const defaultProps = {
   choices: [],
+  hasCustomLabelColors: false,
+  label: t('Color scheme'),
   schemes: {},
   clearable: false,
   onChange: () => {},
 };
 
+const StyledAlert = styled(Icons.AlertSolid)`
+  color: ${({ theme }) => theme.colors.alert.base};
+`;
+
 export default class ColorSchemeControl extends React.PureComponent {
   constructor(props) {
     super(props);
     this.onChange = this.onChange.bind(this);
     this.renderOption = this.renderOption.bind(this);
+    this.renderLabel = this.renderLabel.bind(this);
+    this.dashboardColorSchemeAlert = t(
+      `The color scheme is determined by the related dashboard.
+              Edit the color scheme in the dashboard properties.`,
+    );
   }
 
   onChange(value) {
@@ -72,7 +86,7 @@ export default class ColorSchemeControl extends React.PureComponent {
     }
 
     return (
-      <Tooltip id={`${currentScheme.id}-tooltip`} title={currentScheme.label}>
+      <span key={currentScheme.id} title={currentScheme.label}>
         <ul
           css={{
             listStyle: 'none',
@@ -101,43 +115,91 @@ export default class ColorSchemeControl extends React.PureComponent {
             </li>
           ))}
         </ul>
-      </Tooltip>
+      </span>
     );
   }
 
+  renderLabel() {
+    const { dashboardId, hasCustomLabelColors, label } = this.props;
+
+    if (hasCustomLabelColors || dashboardId) {
+      const alertTitle = hasCustomLabelColors
+        ? t(
+            `This color scheme is being overriden by custom label colors.
+              Check the JSON metadata in the Advanced settings`,
+          )
+        : this.dashboardColorSchemeAlert;
+      return (
+        <>
+          {label}{' '}
+          <Tooltip title={alertTitle}>
+            <StyledAlert iconSize="s" />
+          </Tooltip>
+        </>
+      );
+    }
+    return label;
+  }
+
   render() {
-    const { schemes, choices } = this.props;
-    // save parsed schemes for later
-    this.schemes = isFunction(schemes) ? schemes() : schemes;
+    const { choices, dashboardId, schemes } = this.props;
+    let options = dashboardId
+      ? [
+          {
+            value: 'dashboard',
+            label: 'dashboard',
+            customLabel: (
+              <Tooltip title={this.dashboardColorSchemeAlert}>
+                {t('Dashboard scheme')}
+              </Tooltip>
+            ),
+          },
+        ]
+      : [];
+    let currentScheme = dashboardId ? 'dashboard' : undefined;
 
-    const allColorOptions = (isFunction(choices) ? choices() : choices).filter(
-      o => o[0] !== 'SUPERSET_DEFAULT',
-    );
-    const options = allColorOptions.map(([value]) => ({
-      value,
-      label: this.schemes?.[value]?.label || value,
-      customLabel: this.renderOption(value),
-    }));
-
-    let currentScheme =
-      this.props.value ||
-      (this.props.default !== undefined ? this.props.default : undefined);
-
-    if (currentScheme === 'SUPERSET_DEFAULT') {
-      currentScheme = this.schemes?.SUPERSET_DEFAULT?.id;
+    // if related to a dashboard the scheme is dictated by the dashboard
+    if (!dashboardId) {
+      this.schemes = isFunction(schemes) ? schemes() : schemes;
+      const controlChoices = isFunction(choices) ? choices() : choices;
+      const allColorOptions = [];
+      const filteredColorOptions = controlChoices.filter(o => {
+        const option = o[0];
+        const isValidColorOption =
+          option !== 'SUPERSET_DEFAULT' && !allColorOptions.includes(option);
+        allColorOptions.push(option);
+        return isValidColorOption;
+      });
+
+      options = filteredColorOptions.map(([value]) => ({
+        customLabel: this.renderOption(value),
+        label: this.schemes?.[value]?.label || value,
+        value,
+      }));
+
+      currentScheme = this.props.value || this.props.default;
+
+      if (currentScheme === 'SUPERSET_DEFAULT') {
+        currentScheme = this.schemes?.SUPERSET_DEFAULT?.id;
+      }
     }
 
     const selectProps = {
       ariaLabel: t('Select color scheme'),
       allowClear: this.props.clearable,
+      disabled: !!dashboardId,
       name: `select-${this.props.name}`,
       onChange: this.onChange,
       options,
-      placeholder: `Select (${options.length})`,
+      placeholder: t('Select scheme'),
       value: currentScheme,
     };
+
     return (
-      <Select header={<ControlHeader {...this.props} />} {...selectProps} />
+      <Select
+        header={<ControlHeader {...this.props} label={this.renderLabel()} />}
+        {...selectProps}
+      />
     );
   }
 }