redhat-developer · lokanandaprabhu · Mar 11, 2026 · Mar 11, 2026 · Feb 26, 2026 · rhdh-qodo-merge
@@ -0,0 +1,5 @@
+---
+'@red-hat-developer-hub/backstage-plugin-orchestrator-form-widgets': patch
+---
+
+Show ActiveText spinner immediately on retrigger changes to avoid stale text during debounce. Add fetch:clearOnRetrigger to clear widget values when dependencies change.
@@ -0,0 +1,6 @@
+---
+'@red-hat-developer-hub/backstage-plugin-orchestrator': patch
+'@red-hat-developer-hub/backstage-plugin-orchestrator-common': patch
+---
+
+Add workflow instance card height mode config for fixed or content-based layouts.
@@ -521,6 +521,7 @@ The widget supports the following `ui:props` (for detailed information on each,
 - `fetch:headers`: HTTP headers for the fetch request
 - `fetch:body`: HTTP body for the fetch request
 - `fetch:retrigger`: Array of field paths that trigger a refetch when their values change
+- `fetch:clearOnRetrigger`: Clears the field value when retrigger dependencies change
 
 ## Content of `ui:props`
 
@@ -540,6 +541,7 @@ Various selectors (like `fetch:response:*`) are processed by the [jsonata](https
 |        fetch:method         |                                                                                                                                                                                                                                                 HTTP method to use. The default is GET.                                                                                                                                                                                                                                                 |                   GET, POST (So far no identified use-case for PUT or DELETE)                   |
 |         fetch:body          |                                                                                                                                                                                    An object representing the body of an HTTP POST request. Not used with the GET method. Property value can be a string template or an array of strings. templates.                                                                                                                                                                                    | `{“foo”: “bar $${{identityApi.token}}”, "myArray": ["constant", "$${{current.solutionName}}"]}` |
 |       fetch:retrigger       |                                                                                                                                                                                  An array of keys/key families as described in the Backstage API Exposed Parts. If the value referenced by any key from this list is changed, the fetch is triggered.                                                                                                                                                                                   |                      `["current.solutionName", "identityApi.profileName"]`                      |
+|   fetch:clearOnRetrigger    |                                                                                                                                                                               When set to `true`, clears the field value as soon as any `fetch:retrigger` dependency changes, before the fetch completes. Useful to avoid stale values while refetching.                                                                                                                                                                                |                               `true`, `false` (default: `false`)                                |
 |  fetch:error:ignoreUnready  |                                                                                                                                   When set to `true`, suppresses fetch error display until all `fetch:retrigger` dependencies have non-empty values. This is useful when fetch depends on other fields that are not filled yet, preventing expected errors from being displayed during initial load.                                                                                                                                    |                               `true`, `false` (default: `false`)                                |
 |     fetch:error:silent      |                                                                                                                                                           When set to `true`, suppresses fetch error display when the fetch request returns a non-OK status (4xx/5xx). Use this when you want to handle error states via conditional UI instead of showing the widget error.                                                                                                                                                            |                               `true`, `false` (default: `false`)                                |
 |   fetch:skipInitialValue    |                                                                                                                                                                                          When set to `true`, prevents applying the initial value from `fetch:response:value`, keeping the field empty until the user selects or types a value.                                                                                                                                                                                          |                               `true`, `false` (default: `false`)                                |

@@ -103,5 +103,19 @@ export interface Config {
         value: string;
       }>;
     };
+    /**
+     * UI configuration for the workflow instance page.
+     * @visibility frontend
+     */
+    workflowInstancePage?: {
+      /**
+       * Controls card height behavior on the workflow instance page.
+       * "fixed" keeps the current fixed-height cards with internal scrolling.
+       * "content" lets cards expand to fit their content.
+       * Default: fixed
+       * @visibility frontend
+       */
+      cardHeightMode?: 'fixed' | 'content';
+    };
   };
 }
@@ -25,6 +25,7 @@ export type UiProps = {
   'fetch:headers'?: Record<string, string>;
   'fetch:body'?: Record<string, JsonValue>;
   'fetch:retrigger'?: string[];
+  'fetch:clearOnRetrigger'?: boolean;
   'fetch:error:ignoreUnready'?: boolean;
   'fetch:error:silent'?: boolean;
   'fetch:skipInitialValue'?: boolean;

@@ -24,3 +24,4 @@ export * from './useFetchAndEvaluate';
 export * from './applySelector';
 export * from './useProcessingState';
 export * from './resolveDropdownDefault';
+export * from './useClearOnRetrigger';
@@ -0,0 +1,52 @@
+/*
+ * Copyright Red Hat, Inc.
+ *
+ * Licensed 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 { useLayoutEffect, useRef } from 'react';
+import isEqual from 'lodash/isEqual';
+
+type UseClearOnRetriggerArgs = {
+  enabled: boolean;
+  retrigger: (string | undefined)[] | undefined;
+  onClear: () => void;
+};
+
+export const useClearOnRetrigger = ({
+  enabled,
+  retrigger,
+  onClear,
+}: UseClearOnRetriggerArgs) => {
+  const prevRetriggerRef = useRef<(string | undefined)[] | undefined>(
+    retrigger,
+  );
+
+  useLayoutEffect(() => {
+    if (!enabled) {
+      prevRetriggerRef.current = retrigger;
+      return;
+    }
+
+    if (!retrigger) {
+      prevRetriggerRef.current = retrigger;
+      return;
+    }
+
+    const prev = prevRetriggerRef.current;
+    if (prev && !isEqual(prev, retrigger)) {
+      onClear();
+    }
+
+    prevRetriggerRef.current = retrigger;
+  }, [enabled, retrigger, onClear]);
+};
@@ -16,14 +16,15 @@
 
 import { useApi, fetchApiRef } from '@backstage/core-plugin-api';
 import { JsonObject } from '@backstage/types';
-import { useState } from 'react';
+import { useEffect, useRef, useState } from 'react';
 import { UiProps } from '../uiPropTypes';
 import { getErrorMessage } from './errorUtils';
 import { useEvaluateTemplate } from './evaluateTemplate';
 import { useRequestInit } from './useRequestInit';
 import { useRetriggerEvaluate } from './useRetriggerEvaluate';
 import { useDebounce } from 'react-use';
 import { DEFAULT_DEBOUNCE_LIMIT } from '../widgets/constants';
+import isEqual from 'lodash/isEqual';
 
 /**
  * Checks if all fetch:retrigger dependencies have non-empty values.
@@ -55,6 +56,7 @@ export const useFetch = (
 
   const fetchUrl = uiProps['fetch:url'];
   const skipErrorWhenDepsEmpty = uiProps['fetch:error:ignoreUnready'] === true;
+  const clearOnRetrigger = uiProps['fetch:clearOnRetrigger'] === true;
   const evaluatedRequestInit = useRequestInit({
     uiProps,
     prefix: 'fetch',
@@ -67,6 +69,63 @@ export const useFetch = (
     formData,
     setError,
   });
+  const prevRetriggerRef = useRef<(string | undefined)[] | undefined>(
+    retrigger,
+  );
+  const latestRetriggerRef = useRef<(string | undefined)[] | undefined>(
+    retrigger,
+  );
+  const requestIdRef = useRef(0);
+
+  useEffect(() => {
+    latestRetriggerRef.current = retrigger;
+  }, [retrigger]);
+
+  useEffect(() => {
+    if (!clearOnRetrigger) {
+      prevRetriggerRef.current = retrigger;
+      return;
+    }
+
+    if (!retrigger) {
+      prevRetriggerRef.current = retrigger;
+      return;
+    }
+
+    const prev = prevRetriggerRef.current;
+    if (prev && !isEqual(prev, retrigger)) {
+      setData(undefined);
+      setError(undefined);
+    }
+
+    prevRetriggerRef.current = retrigger;
+  }, [clearOnRetrigger, retrigger]);
+
+  const hasFetchInputs =
+    !!fetchUrl && !!evaluatedFetchUrl && !!evaluatedRequestInit && !!retrigger;
+
+  // Set loading immediately on dependency changes so UI shows a spinner during debounce.
+  useEffect(() => {
+    if (!hasFetchInputs) {
+      setLoading(false);
+      return;
+    }
+
+    if (!areRetriggerDependenciesSatisfied(retrigger)) {
+      setLoading(false);
+      return;
+    }
+
+    // Mark loading immediately when a retrigger change is detected so widgets
+    // can show the spinner during the debounce window before the fetch starts.
+    setLoading(true);
+  }, [
+    hasFetchInputs,
+    fetchUrl,
+    evaluatedFetchUrl,
+    evaluatedRequestInit,
+    retrigger,
+  ]);
 
   useDebounce(
     () => {
@@ -81,6 +140,8 @@ export const useFetch = (
       }
 
       const fetchData = async () => {
+        const requestId = ++requestIdRef.current;
+        const retriggerSnapshot = retrigger;
         try {
           setError(undefined);
           if (typeof evaluatedFetchUrl !== 'string') {
@@ -116,14 +177,23 @@ export const useFetch = (
             throw new Error('JSON object expected');
           }
 
-          setData(responseData);
+          if (
+            requestId === requestIdRef.current &&
+            isEqual(retriggerSnapshot, latestRetriggerRef.current)
+          ) {
+            setData(responseData);
+          }
         } catch (err) {
           const prefix = `Failed to fetch data for url ${fetchUrl}.`;
           // eslint-disable-next-line no-console
           console.error(prefix, err);
-          setError(getErrorMessage(prefix, err));
+          if (requestId === requestIdRef.current) {
+            setError(getErrorMessage(prefix, err));
+          }
         } finally {
-          setLoading(false);
+          if (requestId === requestIdRef.current) {
+            setLoading(false);
+          }
         }
       };
       fetchData();

@@ -59,6 +59,32 @@ export const useFetchAndEvaluate = (
   const [error, setError] = useState<string>();
   const [loading, setLoading] = React.useState(true);
   const [resultText, setResultText] = React.useState<string>();
+
+  // Keep spinner visible during the debounce window after fetch/retrigger changes.
+  useEffect(() => {
+    if (!hasRetrigger || !retrigger || waitingForRetrigger) {
+      return;
+    }
+
+    if (fetchError) {
+      setLoading(false);
+      return;
+    }
+
+    // Show spinner immediately on retrigger changes and after data updates,
+    // even before the debounced evaluation completes.
+    if (retriggerSatisfied || fetchLoading || data !== undefined) {
+      setLoading(true);
+    }
+  }, [
+    hasRetrigger,
+    retrigger,
+    retriggerSatisfied,
+    waitingForRetrigger,
+    fetchError,
+    fetchLoading,
+    data,
+  ]);
   useDebounce(
     () => {
       const evaluate = async () => {

@@ -34,6 +34,7 @@ import {
   applySelectorArray,
   resolveDropdownDefault,
   useProcessingState,
+  useClearOnRetrigger,
 } from '../utils';
 import { UiProps } from '../uiPropTypes';
 import { ErrorText } from './ErrorText';
@@ -79,6 +80,7 @@ export const ActiveDropdown: Widget<
   const hasStaticDefault = typeof staticDefault === 'string';
   const staticDefaultValue = hasStaticDefault ? staticDefault : undefined;
   const skipInitialValue = uiProps['fetch:skipInitialValue'] === true;
+  const clearOnRetrigger = uiProps['fetch:clearOnRetrigger'] === true;
 
   const [localError, setLocalError] = useState<string | undefined>(
     !labelSelector || !valueSelector
@@ -159,6 +161,16 @@ export const ActiveDropdown: Widget<
     [onChange, id, setIsChangedByUser],
   );
 
+  const handleClear = useCallback(() => {
+    handleChange('', false);
+  }, [handleChange]);
+
+  useClearOnRetrigger({
+    enabled: clearOnRetrigger,
+    retrigger,
+    onClear: handleClear,
+  });
+
   // Set default value from fetched options
   // Priority: selector default (if valid option) > static default (if valid) > first fetched option
   // Note: Static defaults are applied at form initialization level (in OrchestratorForm)

@@ -16,6 +16,7 @@
 import {
   KeyboardEvent,
   SyntheticEvent,
+  useCallback,
   useEffect,
   useMemo,
   useState,
@@ -41,6 +42,7 @@ import {
   useFetch,
   useRetriggerEvaluate,
   useProcessingState,
+  useClearOnRetrigger,
 } from '../utils';
 import { UiProps } from '../uiPropTypes';
 import { ErrorText } from './ErrorText';
@@ -85,6 +87,7 @@ export const ActiveMultiSelect: Widget<
   const allowNewItems = uiProps['ui:allowNewItems'] === true;
   const staticDefault = uiProps['fetch:response:default'];
   const skipInitialValue = uiProps['fetch:skipInitialValue'] === true;
+  const clearOnRetrigger = uiProps['fetch:clearOnRetrigger'] === true;
   const staticDefaultValues = Array.isArray(staticDefault)
     ? (staticDefault as string[])
     : undefined;
@@ -145,6 +148,17 @@ export const ActiveMultiSelect: Widget<
     handleFetchEnded,
   );
 
+  const handleClear = useCallback(() => {
+    setInProgressItem('');
+    onChange([]);
+  }, [onChange]);
+
+  useClearOnRetrigger({
+    enabled: clearOnRetrigger,
+    retrigger,
+    onClear: handleClear,
+  });
+
   // Process fetch results
   // Note: Static defaults are applied at form initialization level (in OrchestratorForm)
   useEffect(() => {

@@ -37,6 +37,7 @@ import {
   applySelectorArray,
   applySelectorString,
   useProcessingState,
+  useClearOnRetrigger,
 } from '../utils';
 import { ErrorText } from './ErrorText';
 import { UiProps } from '../uiPropTypes';
@@ -73,6 +74,7 @@ export const ActiveTextInput: Widget<
   const hasStaticDefault = typeof staticDefault === 'string';
   const skipInitialValue = uiProps['fetch:skipInitialValue'] === true;
   const hasFetchUrl = !!uiProps['fetch:url'];
+  const clearOnRetrigger = uiProps['fetch:clearOnRetrigger'] === true;
 
   // If fetch:url is configured, either fetch:response:value OR fetch:response:default should be set
   // to provide meaningful behavior. Without fetch:url, the widget works as a plain text input.
@@ -113,9 +115,23 @@ export const ActiveTextInput: Widget<
     [onChange, id, setIsChangedByUser],
   );
 
+  const handleClear = useCallback(() => {
+    handleChange('', false);
+  }, [handleChange]);
+
+  useClearOnRetrigger({
+    enabled: clearOnRetrigger,
+    retrigger,
+    onClear: handleClear,
+  });
+
   // Process fetch results - only override if fetch returns a non-empty value
   // Static defaults are applied at form initialization level (in OrchestratorForm)
   useEffect(() => {
+    if (clearOnRetrigger && loading) {
+      return;
+    }
+
     if (!data) {
       return;
     }
@@ -159,6 +175,8 @@ export const ActiveTextInput: Widget<
     isChangedByUser,
     skipInitialValue,
     wrapProcessing,
+    clearOnRetrigger,
+    loading,
   ]);
 
   const shouldShowFetchError = uiProps['fetch:error:silent'] !== true;