Added back errors panel (#1384)

## Launch Checklist

This PR adds back the error panel which was under the map for some
reason.
It also highlights problematic layers in the layers list (which already
worked).
It also highlights the field that has an error related to it.
It fixes the error types throughout the code.

Before:
<img width="1141" height="665" alt="image"
src="https://github.com/user-attachments/assets/c0593d6c-8f14-41b3-8a51-bc359446656d"
/>


After:
<img width="1141" height="665" alt="image"
src="https://github.com/user-attachments/assets/1ffeebb7-31ea-4ed5-97f4-fc5f907a6aea"
/>


 - [x] Briefly describe the changes in this PR.
- [x] Include before/after visuals or gifs if this PR includes visual
changes.
 - [x] Write tests for all new functionality.
 - [x] Add an entry to `CHANGELOG.md` under the `## main` section.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

src/components/App.tsx

@@ -36,7 +36,7 @@ import LayerWatcher from "../libs/layerwatcher";
 import tokens from "../config/tokens.json";
 import isEqual from "lodash.isequal";
 import { type MapOptions } from "maplibre-gl";
-import { type OnStyleChangedOpts, type StyleSpecificationWithId } from "../libs/definitions";
+import { type MappedError, type OnStyleChangedOpts, type StyleSpecificationWithId } from "../libs/definitions";
 
 // Buffer must be defined globally for @maplibre/maplibre-gl-style-spec validate() function to succeed.
 window.Buffer = buffer.Buffer;
@@ -82,20 +82,8 @@ function updateRootSpec(spec: any, fieldName: string, newValues: any) {
   };
 }
 
-type MappedErrors = {
-  message: string
-  parsed?: {
-    type: string
-    data: {
-      index: number
-      key: string
-      message: string
-    }
-  }
-};
-
 type AppState = {
-  errors: MappedErrors[],
+  errors: MappedError[],
   infos: string[],
   mapStyle: StyleSpecificationWithId,
   dirtyMapStyle?: StyleSpecification,
@@ -383,7 +371,7 @@ export default class App extends React.Component<any, AppState> {
       });
     }
 
-    const mappedErrors = layerErrors.concat(errors).map(error => {
+    const mappedErrors: MappedError[] = layerErrors.concat(errors).map(error => {
       // Special case: Duplicate layer id
       const dupMatch = error.message.match(/layers\[(\d+)\]: (duplicate layer id "?(.*)"?, previously used)/);
       if (dupMatch) {

src/components/AppMessagePanel.tsx

@@ -2,9 +2,10 @@ import React from "react";
 import {formatLayerId} from "../libs/format";
 import {type LayerSpecification, type StyleSpecification} from "maplibre-gl";
 import { Trans, type WithTranslation, withTranslation } from "react-i18next";
+import { type MappedError } from "../libs/definitions";
 
 type AppMessagePanelInternalProps = {
-  errors?: unknown[]
+  errors?: MappedError[]
   infos?: string[]
   mapStyle?: StyleSpecification
   onLayerSelect?(index: number): void;
@@ -19,7 +20,7 @@ class AppMessagePanelInternal extends React.Component<AppMessagePanelInternalPro
 
   render() {
     const {t, selectedLayerIndex} = this.props;
-    const errors = this.props.errors?.map((error: any, idx) => {
+    const errors = this.props.errors?.map((error, idx) => {
       let content;
       if (error.parsed && error.parsed.type === "layer") {
         const {parsed} = error;

src/components/Block.tsx

@@ -1,13 +1,13 @@
-import React, {type PropsWithChildren, type SyntheticEvent} from "react";
+import React, {type CSSProperties, type PropsWithChildren, type SyntheticEvent} from "react";
 import classnames from "classnames";
 import FieldDocLabel from "./FieldDocLabel";
 import Doc from "./Doc";
 
-type BlockProps = PropsWithChildren & {
+export type BlockProps = PropsWithChildren & {
   "data-wd-key"?: string
   label?: string
   action?: React.ReactElement
-  style?: object
+  style?: CSSProperties
   onChange?(...args: unknown[]): unknown
   fieldSpec?: object
   wideMode?: boolean
@@ -66,7 +66,8 @@ export default class Block extends React.Component<BlockProps, BlockState> {
       className={classnames({
         "maputnik-input-block": true,
         "maputnik-input-block--wide": this.props.wideMode,
-        "maputnik-action-block": this.props.action
+        "maputnik-action-block": this.props.action,
+        "maputnik-input-block--error": this.props.error
       })}
       onClick={this.onLabelClick}
     >

src/components/FieldFunction.tsx

@@ -6,6 +6,7 @@ import ZoomProperty from "./_ZoomProperty";
 import ExpressionProperty from "./_ExpressionProperty";
 import {function as styleFunction} from "@maplibre/maplibre-gl-style-spec";
 import {findDefaultFromSpec} from "../libs/spec-helper";
+import { type MappedLayerErrors } from "../libs/definitions";
 
 
 function isLiteralExpression(value: any) {
@@ -119,7 +120,7 @@ type FieldFunctionProps = {
   fieldName: string
   fieldType: string
   fieldSpec: any
-  errors?: {[key: string]: {message: string}}
+  errors?: MappedLayerErrors
   value?: any
 };
 

src/components/FieldSpec.tsx

@@ -1,6 +1,6 @@
-import Block from "./Block";
+import Block, { type BlockProps } from "./Block";
 import InputSpec, { type FieldSpecType, type InputSpecProps } from "./InputSpec";
-import Fieldset from "./Fieldset";
+import Fieldset, { type FieldsetProps } from "./Fieldset";
 
 function getElementFromType(fieldSpec: { type?: FieldSpecType, values?: unknown[] }): typeof Fieldset | typeof Block {
   switch(fieldSpec.type) {
@@ -34,15 +34,13 @@ function getElementFromType(fieldSpec: { type?: FieldSpecType, values?: unknown[
   }
 }
 
-export type FieldSpecProps = InputSpecProps & {
-  name?: string
-};
+export type FieldSpecProps = InputSpecProps & BlockProps & FieldsetProps;
 
 const FieldSpec: React.FC<FieldSpecProps> = (props) => {
   const TypeBlock = getElementFromType(props.fieldSpec!);
 
   return (
-    <TypeBlock label={props.label} action={props.action} fieldSpec={props.fieldSpec}>
+    <TypeBlock label={props.label} action={props.action} fieldSpec={props.fieldSpec} error={props.error}>
       <InputSpec {...props} />
     </TypeBlock>
   );

src/components/Fieldset.tsx

@@ -1,12 +1,14 @@
 import React, { type PropsWithChildren, type ReactElement } from "react";
+import classnames from "classnames";
 import FieldDocLabel from "./FieldDocLabel";
 import Doc from "./Doc";
 import generateUniqueId from "../libs/document-uid";
 
-type FieldsetProps = PropsWithChildren & {
+export type FieldsetProps = PropsWithChildren & {
   label?: string,
   fieldSpec?: { doc?: string },
   action?: ReactElement,
+  error?: {message: string}
 };
 
 
@@ -30,7 +32,10 @@ const Fieldset: React.FC<FieldsetProps> = (props) => {
         </div>
       )}
       {!props.fieldSpec && (
-        <div className="maputnik-input-block-label">
+        <div className={classnames({
+          "maputnik-input-block-label": true,
+          "maputnik-input-block--error": props.error
+        })}>
           {props.label}
         </div>
       )}

src/components/FilterEditor.tsx

@@ -14,7 +14,7 @@ import InputButton from "./InputButton";
 import Doc from "./Doc";
 import ExpressionProperty from "./_ExpressionProperty";
 import { type WithTranslation, withTranslation } from "react-i18next";
-import type { StyleSpecificationWithId } from "../libs/definitions";
+import type { MappedLayerErrors, StyleSpecificationWithId } from "../libs/definitions";
 
 
 function combiningFilter(props: FilterEditorInternalProps): LegacyFilterSpecification | ExpressionSpecification {
@@ -95,7 +95,7 @@ type FilterEditorInternalProps = {
   /** Properties of the vector layer and the available fields */
   properties?: {[key:string]: any}
   filter?: any[]
-  errors?: {[key:string]: any}
+  errors?: MappedLayerErrors
   onChange(value: LegacyFilterSpecification | ExpressionSpecification): unknown
 } & WithTranslation;
 

src/components/InputSpec.tsx

@@ -31,7 +31,6 @@ export type InputSpecProps = {
   /** Override the style of the field */
   style?: object
   "aria-label"?: string
-  error?: unknown[]
   label?: string
   action?: ReactElement
 };
@@ -43,7 +42,6 @@ export default class InputSpec extends React.Component<InputSpecProps> {
 
   childNodes() {
     const commonProps = {
-      error: this.props.error,
       fieldSpec: this.props.fieldSpec,
       label: this.props.label,
       action: this.props.action,

src/components/LayerEditor.tsx

@@ -22,7 +22,7 @@ import {formatLayerId} from "../libs/format";
 import { type WithTranslation, withTranslation } from "react-i18next";
 import { type TFunction } from "i18next";
 import { NON_SOURCE_LAYERS } from "../libs/non-source-layers";
-import { type OnMoveLayerCallback } from "../libs/definitions";
+import { type MappedError, type MappedLayerErrors, type OnMoveLayerCallback } from "../libs/definitions";
 
 type MaputnikLayoutGroup = {
   id: string;
@@ -128,7 +128,7 @@ type LayerEditorInternalProps = {
   isFirstLayer?: boolean
   isLastLayer?: boolean
   layerIndex: number
-  errors?: any[]
+  errors?: MappedError[]
 } & WithTranslation;
 
 type LayerEditorState = {
@@ -193,7 +193,7 @@ class LayerEditorInternal extends React.Component<LayerEditorInternalProps, Laye
     }
     const {errors, layerIndex} = this.props;
 
-    const errorData: {[key in LayerSpecification as string]: {message: string}} = {};
+    const errorData: MappedLayerErrors = {};
     errors!.forEach(error => {
       if (
         error.parsed &&

src/components/LayerList.tsx

@@ -22,7 +22,7 @@ import type {LayerSpecification, SourceSpecification} from "maplibre-gl";
 import generateUniqueId from "../libs/document-uid";
 import { findClosestCommonPrefix, layerPrefix } from "../libs/layer";
 import { type WithTranslation, withTranslation } from "react-i18next";
-import { type OnMoveLayerCallback } from "../libs/definitions";
+import { type MappedError, type OnMoveLayerCallback } from "../libs/definitions";
 
 type LayerListContainerProps = {
   layers: LayerSpecification[]
@@ -33,7 +33,7 @@ type LayerListContainerProps = {
   onLayerCopy(...args: unknown[]): unknown
   onLayerVisibilityToggle(...args: unknown[]): unknown
   sources: Record<string, SourceSpecification & {layers: string[]}>;
-  errors: any[]
+  errors: MappedError[]
 };
 type LayerListContainerInternalProps = LayerListContainerProps & WithTranslation;
 

src/components/PropertyGroup.tsx

@@ -2,6 +2,7 @@ import React from "react";
 
 import FieldFunction from "./FieldFunction";
 import type {LayerSpecification} from "maplibre-gl";
+import { type MappedLayerErrors } from "../libs/definitions";
 
 const iconProperties = ["background-pattern", "fill-pattern", "line-pattern", "fill-extrusion-pattern", "icon-image"];
 
@@ -36,7 +37,7 @@ type PropertyGroupProps = {
   groupFields: string[]
   onChange(...args: unknown[]): unknown
   spec: any
-  errors?: {[key: string]: {message: string}}
+  errors?: MappedLayerErrors
 };
 
 export default class PropertyGroup extends React.Component<PropertyGroupProps> {

src/components/_DataProperty.tsx

@@ -16,6 +16,7 @@ import { type WithTranslation, withTranslation } from "react-i18next";
 
 import labelFromFieldName from "../libs/label-from-field-name";
 import DeleteStopButton from "./_DeleteStopButton";
+import { type MappedLayerErrors } from "../libs/definitions";
 
 
 
@@ -47,7 +48,7 @@ type DataPropertyInternalProps = {
   fieldType?: string
   fieldSpec?: object
   value?: DataPropertyValue
-  errors?: object
+  errors?: MappedLayerErrors
 } & WithTranslation;
 
 type DataPropertyState = {

src/components/_ExpressionProperty.tsx

@@ -7,6 +7,7 @@ import Block from "./Block";
 import InputButton from "./InputButton";
 import labelFromFieldName from "../libs/label-from-field-name";
 import FieldJson from "./FieldJson";
+import { type MappedLayerErrors } from "../libs/definitions";
 
 
 type ExpressionPropertyInternalProps = {
@@ -15,7 +16,7 @@ type ExpressionPropertyInternalProps = {
   fieldType?: string
   fieldSpec?: object
   value?: any
-  errors?: {[key: string]: {message: string}}
+  errors?: MappedLayerErrors
   onChange?(...args: unknown[]): unknown
   onUndo?(...args: unknown[]): unknown
   canUndo?(...args: unknown[]): unknown

src/components/_ZoomProperty.tsx

@@ -15,6 +15,7 @@ import labelFromFieldName from "../libs/label-from-field-name";
 
 import docUid from "../libs/document-uid";
 import sortNumerically from "../libs/sort-numerically";
+import { type MappedLayerErrors } from "../libs/definitions";
 
 
 /**
@@ -59,7 +60,7 @@ type ZoomPropertyInternalProps = {
     "property-type"?: string
     "function-type"?: string
   }
-  errors?: object
+  errors?: MappedLayerErrors
   value?: ZoomWithStops
 } & WithTranslation;
 

src/libs/definitions.d.ts

@@ -16,3 +16,19 @@ export interface IStyleStore {
   getLatestStyle(): Promise<StyleSpecificationWithId>;
   save(mapStyle: StyleSpecificationWithId): StyleSpecificationWithId;
 }
+
+export type MappedError = {
+  message: string
+  parsed?: {
+    type: "layer"
+    data: {
+      index: number
+      key: string
+      message: string
+    }
+  }
+};
+
+export type MappedLayerErrors = {
+  [key in LayerSpecification as string]: {message: string}
+};

src/styles/_components.scss

@@ -290,6 +290,12 @@
   }
 }
 
+.maputnik-input-block--error {
+  .maputnik-input-block-label {
+    color: vars.$color-red;
+  }
+}
+
 .maputnik-expr-infobox {
   font-size: vars.$font-size-6;
   background: vars.$color-midgray;

src/styles/_layout.scss

@@ -44,7 +44,7 @@
     position: fixed;
     bottom: 0;
     right: 0;
-    z-index: 1;
+    z-index: 10;
     width: vars.$layout-map-width;
     background-color: vars.$color-black;
   }