diff --git a/plugins/htmltools/src/com/intellij/htmltools/xml/util/HtmlReferenceProvider.java b/plugins/htmltools/src/com/intellij/htmltools/xml/util/HtmlReferenceProvider.java
index 7d8d0a1752c3..1fcab9b179b3 100644
--- a/plugins/htmltools/src/com/intellij/htmltools/xml/util/HtmlReferenceProvider.java
+++ b/plugins/htmltools/src/com/intellij/htmltools/xml/util/HtmlReferenceProvider.java
@@ -3,6 +3,7 @@ package com.intellij.htmltools.xml.util;
 import com.intellij.codeInsight.lookup.AutoCompletionPolicy;
 import com.intellij.codeInsight.lookup.LookupElement;
 import com.intellij.codeInsight.lookup.LookupElementBuilder;
+import com.intellij.html.impl.providers.HtmlAttributeValueProvider;
 import com.intellij.html.impl.util.MicrodataUtil;
 import com.intellij.lang.Language;
 import com.intellij.openapi.fileTypes.FileType;
@@ -31,6 +32,7 @@ import com.intellij.util.ArrayUtil;
 import com.intellij.util.ArrayUtilRt;
 import com.intellij.util.ProcessingContext;
 import com.intellij.util.containers.ContainerUtil;
+import com.intellij.util.containers.JBIterable;
 import com.intellij.util.io.URLUtil;
 import com.intellij.xml.util.HtmlUtil;
 import org.intellij.images.fileTypes.ImageFileTypeManager;
@@ -44,6 +46,8 @@ import org.jetbrains.annotations.Nullable;
 
 import java.util.*;
 
+import static com.intellij.util.ObjectUtils.doIfNotNull;
+
 public class HtmlReferenceProvider extends PsiReferenceProvider {
   @NonNls private static final String NAME_ATTR_LOCAL_NAME = "name";
   @NonNls private static final String USEMAP_ATTR_NAME = "usemap";
@@ -52,7 +56,7 @@ public class HtmlReferenceProvider extends PsiReferenceProvider {
   @NonNls private static final String SRC_ATTR_NAME = "src";
   @NonNls private static final String JAVASCRIPT_PREFIX = "javascript:";
 
-  private static final FileType[] IMAGE_FILE_TYPES = new FileType[]{ImageFileTypeManager.getInstance().getImageFileType()};
+  public static final FileType[] IMAGE_FILE_TYPES = new FileType[]{ImageFileTypeManager.getInstance().getImageFileType()};
   public static final String LABELLEDBY = "aria-labelledby";
 
   public static ElementFilter getFilter() {
@@ -284,7 +288,6 @@ public class HtmlReferenceProvider extends PsiReferenceProvider {
     return fileType == null ? null : new FileType[]{fileType};
   }
 
-  @SuppressWarnings({"HardCodedStringLiteral"})
   public static String[] getAttributeValues() {
     return new String[] {SRC_ATTR_NAME, HREF_ATTRIBUTE_NAME, USEMAP_ATTR_NAME, "action", "background", "width", "height", "type", "bgcolor", "color", "vlink",
       "link", "alink", "text", "name", HtmlUtil.ID_ATTRIBUTE_NAME, HtmlUtil.CLASS_ATTRIBUTE_NAME, FOR_ATTR_NAME, MicrodataUtil.ITEM_REF, "data", "poster", "srcset",
@@ -388,9 +391,15 @@ public class HtmlReferenceProvider extends PsiReferenceProvider {
     @Nullable
     public static ImageInfoReader.Info getImageInfo(@NotNull final XmlTag tag) {
       return CachedValuesManager.getCachedValue(tag, () -> {
-        final XmlAttribute src = tag.getAttribute(SRC_ATTR_NAME, null);
-        if (src != null) {
-          final PsiFile psiFile = FileReferenceUtil.findFile(src.getValueElement());
+        PsiElement srcValue = JBIterable.from(HtmlAttributeValueProvider.EP_NAME.getExtensionList())
+          .filterMap(it -> it.getCustomAttributeValue(tag, SRC_ATTR_NAME))
+          .first();
+        if (srcValue == null) {
+          var attr = tag.getAttribute(SRC_ATTR_NAME, null);
+          srcValue = attr != null ? attr.getValueElement() : null;
+        }
+        if (srcValue != null) {
+          final PsiFile psiFile = FileReferenceUtil.findFile(srcValue);
           if (psiFile != null) {
             final VirtualFile virtualFile = psiFile.getVirtualFile();
             if (virtualFile instanceof VirtualFileWithId) {
@@ -398,19 +407,19 @@ public class HtmlReferenceProvider extends PsiReferenceProvider {
               if (value == null) return null;
               return CachedValueProvider.Result.create(
                 new ImageInfoReader.Info(value.width, value.height, value.bpp, IfsUtil.isSVG(virtualFile)),
-                src,
+                srcValue,
                 virtualFile
               );
             }
           }
-          final String srcValue = src.getValue();
-          if (srcValue != null && URLUtil.isDataUri(srcValue)) {
-            final byte[] bytesFromDataUri = URLUtil.getBytesFromDataUri(srcValue);
+          final String srcValueText = doIfNotNull(srcValue.getText(), StringUtil::unquoteString);
+          if (srcValueText != null && URLUtil.isDataUri(srcValueText)) {
+            final byte[] bytesFromDataUri = URLUtil.getBytesFromDataUri(srcValueText);
             if (bytesFromDataUri != null) {
               try {
                 ImageInfoReader.Info info = ImageInfoReader.getInfo(bytesFromDataUri);
                 if (info != null) {
-                  return CachedValueProvider.Result.create(info, src);
+                  return CachedValueProvider.Result.create(info, srcValue);
                 }
               }
               catch (Exception ignored) {
diff --git a/xml/xml-analysis-impl/src/com/intellij/codeInspection/htmlInspections/RequiredAttributesInspectionBase.java b/xml/xml-analysis-impl/src/com/intellij/codeInspection/htmlInspections/RequiredAttributesInspectionBase.java
index 3c85d2c56395..c08dc9c86439 100644
--- a/xml/xml-analysis-impl/src/com/intellij/codeInspection/htmlInspections/RequiredAttributesInspectionBase.java
+++ b/xml/xml-analysis-impl/src/com/intellij/codeInspection/htmlInspections/RequiredAttributesInspectionBase.java
@@ -18,6 +18,7 @@ package com.intellij.codeInspection.htmlInspections;
 import com.intellij.codeInsight.daemon.impl.analysis.XmlHighlightingAwareElementDescriptor;
 import com.intellij.codeInspection.*;
 import com.intellij.codeInspection.util.InspectionMessage;
+import com.intellij.html.impl.providers.HtmlAttributeValueProvider;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.util.Key;
 import com.intellij.openapi.util.NlsSafe;
@@ -26,6 +27,7 @@ import com.intellij.psi.html.HtmlTag;
 import com.intellij.psi.xml.XmlAttribute;
 import com.intellij.psi.xml.XmlTag;
 import com.intellij.psi.xml.XmlToken;
+import com.intellij.util.containers.JBIterable;
 import com.intellij.xml.XmlAttributeDescriptor;
 import com.intellij.xml.XmlElementDescriptor;
 import com.intellij.xml.XmlExtension;
@@ -113,8 +115,10 @@ public class RequiredAttributesInspectionBase extends HtmlLocalInspectionTool im
         if (!hasAttribute(tag, attrName) &&
             !XmlExtension.getExtension(tag.getContainingFile()).isRequiredAttributeImplicitlyPresent(tag, attrName)) {
 
-          LocalQuickFix insertRequiredAttributeIntention = isOnTheFly ? XmlQuickFixFactory.getInstance().insertRequiredAttributeFix(tag, attrName) : null;
-          final String localizedMessage = XmlAnalysisBundle.message("xml.inspections.element.doesnt.have.required.attribute", name, attrName);
+          LocalQuickFix insertRequiredAttributeIntention =
+            isOnTheFly ? XmlQuickFixFactory.getInstance().insertRequiredAttributeFix(tag, attrName) : null;
+          final String localizedMessage =
+            XmlAnalysisBundle.message("xml.inspections.element.doesnt.have.required.attribute", name, attrName);
           reportOneTagProblem(
             tag,
             attrName,
@@ -130,6 +134,10 @@ public class RequiredAttributesInspectionBase extends HtmlLocalInspectionTool im
   }
 
   private static boolean hasAttribute(XmlTag tag, String attrName) {
+    if (JBIterable.from(HtmlAttributeValueProvider.EP_NAME.getExtensionList())
+          .filterMap(it -> it.getCustomAttributeValue(tag, attrName)).first() != null) {
+      return true;
+    }
     final XmlAttribute attribute = tag.getAttribute(attrName);
     if (attribute == null) return false;
     if (attribute.getValueElement() != null) return true;
@@ -149,17 +157,17 @@ public class RequiredAttributesInspectionBase extends HtmlLocalInspectionTool im
 
     if (tag instanceof HtmlTag) {
       htmlTag = true;
-      if(isAdditionallyDeclared(getAdditionalEntries(), name)) return;
+      if (isAdditionallyDeclared(getAdditionalEntries(), name)) return;
     }
 
     LocalQuickFix[] fixes;
     ProblemHighlightType highlightType;
     if (htmlTag) {
-      fixes = basicIntention == null ? new LocalQuickFix[] {addAttributeFix} : new LocalQuickFix[]{addAttributeFix, basicIntention};
+      fixes = basicIntention == null ? new LocalQuickFix[]{addAttributeFix} : new LocalQuickFix[]{addAttributeFix, basicIntention};
       highlightType = isInjectedWithoutValidation(tag) ? ProblemHighlightType.INFORMATION : ProblemHighlightType.GENERIC_ERROR_OR_WARNING;
     }
     else {
-      fixes = basicIntention == null ? LocalQuickFix.EMPTY_ARRAY : new LocalQuickFix[] {basicIntention};
+      fixes = basicIntention == null ? LocalQuickFix.EMPTY_ARRAY : new LocalQuickFix[]{basicIntention};
       highlightType = ProblemHighlightType.ERROR;
     }
     if (isOnTheFly || highlightType != ProblemHighlightType.INFORMATION) {
diff --git a/xml/impl/src/com/intellij/html/impl/providers/HtmlAttributeValueProvider.java b/xml/xml-psi-impl/src/com/intellij/html/impl/providers/HtmlAttributeValueProvider.java
similarity index 64%
rename from xml/impl/src/com/intellij/html/impl/providers/HtmlAttributeValueProvider.java
rename to xml/xml-psi-impl/src/com/intellij/html/impl/providers/HtmlAttributeValueProvider.java
index 622bcaa6c172..c7f559a6f31b 100644
--- a/xml/impl/src/com/intellij/html/impl/providers/HtmlAttributeValueProvider.java
+++ b/xml/xml-psi-impl/src/com/intellij/html/impl/providers/HtmlAttributeValueProvider.java
@@ -16,7 +16,9 @@
 package com.intellij.html.impl.providers;
 
 import com.intellij.openapi.extensions.ExtensionPointName;
+import com.intellij.psi.PsiElement;
 import com.intellij.psi.xml.XmlTag;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 public class HtmlAttributeValueProvider {
@@ -27,9 +29,18 @@ public class HtmlAttributeValueProvider {
    * Calculates attribute value. Used when it is impossible to get attribute value as text of PSI element
    * @return calculated value
    */
-  @Nullable
-  public String getCustomAttributeValues(final XmlTag tag, final String attributeName) {
+  public @Nullable String getCustomAttributeValues(@NotNull XmlTag tag, @NotNull String attributeName) {
     return null;
   }
+
+  /**
+   * Allows to provide an attribute value from a different non-standard attribute to work with in place of a regular one.
+   * It is useful in frameworks, e.g. to provide a directive attribute value instead of {@code src} attribute of {@code <img>} tag.
+   * @return a custom attribute to use instead of a standard one
+   */
+  public @Nullable PsiElement getCustomAttributeValue(@NotNull XmlTag tag, @NotNull String attributeName) {
+    return null;
+  }
+
 }