FORMS-18927 Added support for custom extensions using the edit dialogue

bundles/af-core/src/main/java/com/adobe/cq/forms/core/components/internal/form/ReservedProperties.java

@@ -123,6 +123,7 @@ private ReservedProperties() {
     public static final String PN_UNCHECKED_VALUE = "uncheckedValue";
     public static final String PN_MAX_FILE_SIZE = "maxFileSize";
     public static final String PN_FILE_ACCEPT = "accept";
+    public static final String PN_FILE_ACCEPT_EXTENSIONS = "acceptExtensions";
     public static final String PN_BUTTON_TEXT = "buttonText";
     public static final String PN_WRAP_DATA = "wrapData";
     public static final String PN_FRAGMENT_PATH = "fragmentPath";

bundles/af-core/src/main/java/com/adobe/cq/forms/core/components/internal/models/v3/form/FileInputImplV3.java

@@ -18,7 +18,11 @@
 
 package com.adobe.cq.forms.core.components.internal.models.v3.form;
 
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 
 import org.apache.sling.api.SlingHttpServletRequest;
 import org.apache.sling.api.resource.Resource;
@@ -48,6 +52,9 @@ public class FileInputImplV3 extends FileInputImplV2 {
     @Default(values = FileInput.DEFAULT_DRAGDROP_TEXT)
     protected String dragDropTextV3;
 
+    @ValueMapValue(injectionStrategy = InjectionStrategy.OPTIONAL, name = ReservedProperties.PN_FILE_ACCEPT_EXTENSIONS)
+    protected String[] acceptExtensions;
+
     @Override
     public String getDragDropText() {
         return dragDropTextV3;
@@ -60,4 +67,17 @@ public String getDragDropText() {
         customProperties.put(ReservedProperties.PN_DRAG_DROP_TEXT_V3, getDragDropText());
         return customProperties;
     }
+
+    @Override
+    public List<String> getAcceptExtensions() {
+        // adding . in front of the accept extensions
+        if (acceptExtensions != null) {
+            for (int i = 0; i < acceptExtensions.length; i++) {
+                acceptExtensions[i] = "." + acceptExtensions[i];
+            }
+        }
+        return Optional.ofNullable(acceptExtensions)
+            .map(Arrays::asList)
+            .orElse(Collections.emptyList());
+    }
 }

bundles/af-core/src/main/java/com/adobe/cq/forms/core/components/models/form/FileConstraint.java

@@ -57,6 +57,17 @@ default List<String> getAccept() {
         return DEFAULT_ACCEPT;
     }
 
+    /**
+     * Returns the list of file extensions which field can accept. The constraint is
+     * applicable for file attachment field
+     *
+     * @return the list of extensions supported by the field
+     * @since com.adobe.cq.forms.core.components.models.form 0.0.1
+     */
+    default List<String> getAcceptExtensions() {
+        return Collections.emptyList();
+    }
+
     /**
      * The constraint is
      * applicable for file attachment field. If the type is {@code String}, the format will always be {@code data-url}.

bundles/af-core/src/main/java/com/adobe/cq/forms/core/components/models/form/FileInput.java

@@ -15,6 +15,9 @@
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 package com.adobe.cq.forms.core.components.models.form;
 
+import java.util.Collections;
+import java.util.List;
+
 import org.osgi.annotation.versioning.ConsumerType;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
@@ -40,6 +43,17 @@ default Boolean isMultiple() {
         return false;
     }
 
+    /**
+     * Returns the list of file extensions which field can accept. The constraint is
+     * applicable for file attachment field
+     *
+     * @return the list of extensions supported by the field
+     */
+    @JsonIgnore
+    default List<String> getAcceptExtensions() {
+        return Collections.emptyList();
+    }
+
     /**
      * Returns the text to be displayed on the file input button
      *

bundles/af-core/src/test/java/com/adobe/cq/forms/core/components/internal/models/v1/form/FileConstraintTest.java

@@ -15,6 +15,8 @@
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 package com.adobe.cq.forms.core.components.internal.models.v1.form;
 
+import java.util.Collections;
+
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mockito;
@@ -42,4 +44,11 @@ void testGetAccept() {
         Mockito.when(fileConstraintMock.getAccept()).thenCallRealMethod();
         assertThat(FileConstraint.DEFAULT_ACCEPT, is(fileConstraintMock.getAccept()));
     }
+
+    @Test
+    void testGetAcceptExtensions() {
+        FileConstraint fileConstraintMock = Mockito.mock(FileConstraint.class);
+        Mockito.when(fileConstraintMock.getAcceptExtensions()).thenCallRealMethod();
+        assertEquals(Collections.emptyList(), fileConstraintMock.getAcceptExtensions());
+    }
 }

bundles/af-core/src/test/java/com/adobe/cq/forms/core/components/internal/models/v3/form/FileInputImplV3Test.java

@@ -17,6 +17,7 @@
 
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.List;
 import java.util.Map;
 
 import org.apache.commons.lang3.reflect.FieldUtils;
@@ -41,7 +42,7 @@
 import io.wcm.testing.mock.aem.junit5.AemContext;
 import io.wcm.testing.mock.aem.junit5.AemContextExtension;
 
-import static org.hamcrest.CoreMatchers.*;
+import static org.hamcrest.CoreMatchers.is;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertThat;
@@ -400,4 +401,21 @@ void testJSONExportDataLayer() throws Exception {
         FieldUtils.writeField(fileInput, "dataLayerEnabled", true, true);
         Utils.testJSONExport(fileInput, Utils.getTestExporterJSONPath(BASE, PATH_FILEINPUT_DATALAYER));
     }
+
+    @Test
+    void testGetAcceptExtensions() {
+        FileInput fileInput = Utils.getComponentUnderTest(PATH_FILEINPUT_DATALAYER, FileInput.class, context);
+        // assert fileInput.getAcceptExtensions() to return empty list
+        assertEquals(Collections.emptyList(), fileInput.getAcceptExtensions());
+        FileInput fileInputMock = Mockito.mock(FileInput.class);
+        Mockito.when(fileInputMock.getAcceptExtensions()).thenCallRealMethod();
+        assertEquals(Collections.emptyList(), fileInput.getAcceptExtensions());
+    }
+
+    @Test
+    void testGetAcceptExtensionsWithExtensions() {
+        FileInput fileInput = Utils.getComponentUnderTest(PATH_FILEINPUT_CUSTOMIZED, FileInput.class, context);
+        List<String> extensions = fileInput.getAcceptExtensions();
+        assertThat(Arrays.asList(".jpg", ".png"), is(extensions));
+    }
 }

bundles/af-core/src/test/resources/form/fileinputv3/test-content.json

@@ -31,7 +31,11 @@
     "custom" : "Custom screen reader text",
     "tooltip": "test-short-description",
     "maxFileSize" : "4",
-    "accept" : ["audio/*", "video/*", "image/*"]
+    "accept" : ["audio/*", "video/*", "image/*"],
+    "acceptExtensions": [
+      "jpg",
+      "png"
+    ]
   },
   "multiselect-fileinput" : {
     "jcr:primaryType": "nt:unstructured",

it/content/src/main/content/jcr_root/content/forms/af/core-components-it/samples/fileinput/fileinputv3/basic/.content.xml

@@ -103,6 +103,15 @@
                     maxFileSize="2"
                     type="file[]"
                     visible="{Boolean}true"/>
+             <fileinput7
+                    jcr:primaryType="nt:unstructured"
+                    jcr:title="File Input - 7"
+                    sling:resourceType="core/fd/components/form/fileinput/v3/fileinput"
+                    accept="[audio/*, video/*, image/*, text/*, application/pdf,.ifc]"
+                    fieldType="file-input"
+                    readOnly="{Boolean}false"
+                    name="fileinput7"
+                    type="file"/>
             <submit
                     jcr:lastModified="{Date}2023-01-17T16:28:58.844+05:30"
                     jcr:lastModifiedBy="admin"

ui.af.apps/src/main/content/jcr_root/apps/core/fd/components/form/fileinput/v3/fileinput/_cq_dialog/.content.xml

@@ -18,7 +18,7 @@
     jcr:primaryType="nt:unstructured"
     jcr:title="Adaptive Form File Attachment"
     sling:resourceType="cq/gui/components/authoring/dialog"
-    extraClientlibs="[core.forms.components.fileinput.v1.editor]"
+    extraClientlibs="[core.forms.components.fileinput.v3.editor]"
     helpPath="https://www.adobe.com/go/aem_af_cmp_fileinput_v2"
     trackingFeature="core-components:adaptiveform-fileinput:v2">
     <content
@@ -87,7 +87,54 @@
                     </basic>
                     <validation
                         jcr:primaryType="nt:unstructured"
-                        sling:resourceType="granite/ui/components/coral/foundation/container"/>
+                        sling:resourceType="granite/ui/components/coral/foundation/container">
+                        <items jcr:primaryType="nt:unstructured">
+                            <columns
+                                    jcr:primaryType="nt:unstructured"
+                                    sling:resourceType="granite/ui/components/coral/foundation/fixedcolumns"
+                                    margin="{Boolean}true">
+                                <items jcr:primaryType="nt:unstructured">
+                                    <column
+                                            jcr:primaryType="nt:unstructured"
+                                            sling:resourceType="granite/ui/components/coral/foundation/container">
+                                        <items jcr:primaryType="nt:unstructured">
+                                            <mimeType
+                                                    wrapperClass="cmp-adaptiveform-fileinput__mimeType"
+                                                    jcr:primaryType="nt:unstructured"
+                                                    sling:resourceType="fd/af/authoring/components/granite/form/formsmultifield"
+                                                    fieldLabel="Allowed file types"
+                                                    fieldDescription="Specify allowed MIME types (for example, image/jpeg) to filter uploads. You can use this option or 'Allowed file extensions'. However, this setting is disabled if any 'Allowed file extensions' are specified."
+                                                    defaultValue="">
+                                                <field
+                                                        name="./accept"
+                                                        jcr:primaryType="nt:unstructured"
+                                                        sling:resourceType="granite/ui/components/coral/foundation/form/textfield"/>
+                                            </mimeType>
+                                            <extensions
+                                                    wrapperClass="cmp-adaptiveform-fileinput__extensions"
+                                                    jcr:primaryType="nt:unstructured"
+                                                    sling:resourceType="fd/af/authoring/components/granite/form/formsmultifield"
+                                                    fieldLabel="Allowed file extensions"
+                                                    fieldDescription="Specify allowed file extensions (for example, jpg, pdf) to filter uploads. Using this option will disable and override the 'Allowed file types' setting."
+                                                    defaultValue="">
+                                                <field
+                                                        name="./acceptExtensions"
+                                                        jcr:primaryType="nt:unstructured"
+                                                        sling:resourceType="granite/ui/components/coral/foundation/form/textfield"/>
+                                                <granite:rendercondition
+                                                    jcr:primaryType="nt:unstructured"
+                                                    sling:resourceType="granite/ui/components/renderconditions/featuretoggle"
+                                                    toggleName="FT_FORMS-18927"/>
+                                            </extensions>
+                                            <acceptMessage
+                                                    jcr:primaryType="nt:unstructured"
+                                                    sling:resourceType="granite/ui/components/coral/foundation/form/textarea"/>
+                                        </items>
+                                    </column>
+                                </items>
+                            </columns>
+                        </items>
+                    </validation>
                     <help
                             jcr:primaryType="nt:unstructured"
                             jcr:title="Help Content"

ui.af.apps/src/main/content/jcr_root/apps/core/fd/components/form/fileinput/v3/fileinput/clientlibs/.content.xml

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<jcr:root xmlns:sling="http://sling.apache.org/jcr/sling/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0"
+    jcr:primaryType="sling:Folder"/>

ui.af.apps/src/main/content/jcr_root/apps/core/fd/components/form/fileinput/v3/fileinput/clientlibs/editor/.content.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<jcr:root xmlns:cq="http://www.day.com/jcr/cq/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0"
+    jcr:primaryType="cq:ClientLibraryFolder"
+    categories="[core.forms.components.fileinput.v3.editor]"
+    jsProcessor="[default:none,min:gcc;languageIn=ECMASCRIPT_2021;languageOut=ECMASCRIPT_2021]"
+    dependencies="[core.forms.components.base.v1.editor, core.forms.components.commons.v1.editor.utils]"/>

ui.af.apps/src/main/content/jcr_root/apps/core/fd/components/form/fileinput/v3/fileinput/clientlibs/editor/js.txt

@@ -0,0 +1,18 @@
+###############################################################################
+# Copyright 2025 Adobe
+#
+# 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.
+###############################################################################
+
+#base=js
+editDialog.js

ui.af.apps/src/main/content/jcr_root/apps/core/fd/components/form/fileinput/v3/fileinput/clientlibs/editor/js/editDialog.js

@@ -0,0 +1,94 @@
+/*******************************************************************************
+ * Copyright 2025 Adobe
+ *
+ * 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.
+ ******************************************************************************/
+(function($) {
+    "use strict";
+    let EDIT_DIALOG = ".cmp-adaptiveform-fileinput__editdialog",
+        FILEINPUT_MIMETYPE = EDIT_DIALOG + " .cmp-adaptiveform-fileinput__mimeType",
+        FILEINPUT_EXTENSIONS = EDIT_DIALOG + " .cmp-adaptiveform-fileinput__extensions",
+        Utils = window.CQ.FormsCoreComponents.Utils.v1;
+
+    function handleMimeType(dialog) {
+        let mimeTypeWrapper = dialog.find(FILEINPUT_MIMETYPE);
+        let mimeTypeField = mimeTypeWrapper.find("coral-multifield");
+        let extensionsField = dialog.find(FILEINPUT_EXTENSIONS + " coral-multifield");
+        let mimeTypeFieldInfoIcon = mimeTypeWrapper.find('coral-icon.coral-Form-fieldinfo');
+
+        function updateMimeTypeState() {
+            let hasExtensions = extensionsField.find('coral-multifield-item').length > 0;
+
+            // Disable the entire multifield and its contents
+            mimeTypeField.css({
+                'pointer-events': hasExtensions ? 'none' : 'auto',
+                'opacity': hasExtensions ? '0.5' : '1'
+            });
+            mimeTypeField.prop('disabled', hasExtensions);
+
+            // Disable delete icons and their SVGs
+            mimeTypeField.find('coral-icon[icon="delete"], ._coral-Icon--svg').css({
+                'pointer-events': hasExtensions ? 'none' : 'auto'
+            });
+
+            // Handle MIME type items if extensions exist
+            if (hasExtensions) {
+                // Keep first item, remove others
+                let firstItem = mimeTypeField.find('coral-multifield-item').first();
+
+                // If no first item exists, create one
+                if (firstItem.length === 0) {
+                    // Click the add button to create a new item
+                    mimeTypeField.find('button[coral-multifield-add]').click();
+                    firstItem = mimeTypeField.find('coral-multifield-item').first();
+                }
+
+                mimeTypeField.find('coral-multifield-item:not(:first)').remove();
+
+                // Set value of first item to */*
+                firstItem.find('input').val('*/*');
+            }
+
+            if(mimeTypeFieldInfoIcon.length > 0) {
+                // show the info icon
+                mimeTypeFieldInfoIcon.css({
+                    'display': hasExtensions ? '' : 'none'
+                });
+            }
+        }
+
+        // Watch for changes in both fields
+        extensionsField.on('change', updateMimeTypeState);
+        mimeTypeField.on('change', updateMimeTypeState);
+
+        // Check initial state without triggering events
+        let hasExtensions = extensionsField.find('coral-multifield-item').length > 0;
+        if (hasExtensions) {
+            mimeTypeField.css({
+                'pointer-events': 'none',
+                'opacity': '0.5'
+            });
+            mimeTypeField.prop('disabled', true);
+            mimeTypeField.find('coral-icon[icon="delete"], ._coral-Icon--svg').css({
+                'pointer-events': 'none'
+            });
+        }
+    }
+
+    $(document).on('dialog-loaded', EDIT_DIALOG, function(e) {
+        handleMimeType($(this));
+    });
+
+    Utils.initializeEditDialog(EDIT_DIALOG)(handleMimeType);
+
+})(jQuery);

ui.af.apps/src/main/content/jcr_root/apps/core/fd/components/form/fileinput/v3/fileinput/fileinput.html

@@ -50,7 +50,7 @@
              name="${file.name}"
              disabled="${!file.enabled}"
              required="${file.required}"
-             accept="${file.accept}"
+             accept="${[file.accept, file.acceptExtensions] @ join=','}"
              type="file"
              data-cmp-data-layer="${file.data.json}"
         />