WIP: form field navigation and linemarker for Twig

src/main/java/fr/adrienbrault/idea/symfony2plugin/templating/TwigLineMarkerProvider.java

@@ -110,6 +110,11 @@ public void collectSlowLineMarkers(@NotNull List<PsiElement> psiElements, @NotNu
                 if(lineOverwrites != null) {
                     results.add(lineOverwrites);
                 }
+            } else if(TwigPattern.getFunctionPattern("form_row", "form_widget").accepts(psiElement)) {
+                LineMarkerInfo lineOverwrites = attachFormTypeFields(psiElement);
+                if(lineOverwrites != null) {
+                    results.add(lineOverwrites);
+                }
             }
         }
     }
@@ -299,7 +304,45 @@ private LineMarkerInfo attachBlockOverwrites(@NotNull PsiElement psiElement, @No
 
         NavigationGutterIconBuilder<PsiElement> builder = NavigationGutterIconBuilder.create(PhpIcons.OVERRIDES)
             .setTargets(new BlockOverwriteLazyValue(psiElement))
-            .setTooltipText("Overwrites")
+            .setTooltipText("Navigate to form")
+            .setCellRenderer(new MyBlockListCellRenderer());
+
+        return builder.createLineMarkerInfo(firstChild);
+    }
+
+    @Nullable
+    private LineMarkerInfo attachFormTypeFields(@NotNull PsiElement psiElement) {
+        PsiElement firstChild = psiElement.getFirstChild();
+        if (firstChild == null) {
+            return null;
+        }
+
+        PsiElement nextSiblingOfType = PsiElementUtils.getNextSiblingOfType(firstChild, PlatformPatterns.psiElement().withElementType(TwigTokenTypes.IDENTIFIER).beforeLeaf(PlatformPatterns.psiElement(TwigTokenTypes.RBRACE)));
+        if (nextSiblingOfType == null) {
+            return null;
+        }
+
+        Collection<TwigTypeContainer> twigTypeContainers = TwigTypeResolveUtil.resolveTwigMethodName(nextSiblingOfType, TwigTypeResolveUtil.formatPsiTypeNameWithCurrent(nextSiblingOfType));
+
+        Collection<PsiElement> targets = new HashSet<>();
+
+        for (TwigTypeContainer twigTypeContainer : twigTypeContainers) {
+            Object dataHolder = twigTypeContainer.getDataHolder();
+            if (dataHolder instanceof FormDataHolder && PhpElementsUtil.isInstanceOf(((FormDataHolder) dataHolder).getFormType(), "\\Symfony\\Component\\Form\\FormTypeInterface")) {
+                PsiElement field = ((FormDataHolder) dataHolder).getField();
+                if (field != null) {
+                    targets.add(field);
+                }
+            }
+        }
+
+        if (targets.isEmpty()) {
+            return null;
+        }
+
+        NavigationGutterIconBuilder<PsiElement> builder = NavigationGutterIconBuilder.create(Symfony2Icons.FORM_TYPE_LINE_MARKER)
+            .setTargets(targets)
+            .setTooltipText("Navigate to form field")
             .setCellRenderer(new MyBlockListCellRenderer());
 
         return builder.createLineMarkerInfo(psiElement);

src/main/java/fr/adrienbrault/idea/symfony2plugin/templating/variable/TwigTypeContainer.java

@@ -5,6 +5,7 @@
 import com.jetbrains.php.lang.psi.elements.PhpNamedElement;
 import fr.adrienbrault.idea.symfony2plugin.templating.variable.dict.PsiVariable;
 import fr.adrienbrault.idea.symfony2plugin.util.PhpElementsUtil;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
@@ -15,16 +16,20 @@
  * @author Daniel Espendiller <daniel@espendiller.net>
  */
 public class TwigTypeContainer {
-
+    @Nullable
     private PhpNamedElement phpNamedElement;
+
+    @Nullable
     private String stringElement;
+
+    @Nullable
     private Object dataHolder;
 
-    public TwigTypeContainer(PhpNamedElement phpNamedElement) {
+    public TwigTypeContainer(@Nullable PhpNamedElement phpNamedElement) {
         this.phpNamedElement = phpNamedElement;
     }
 
-    public TwigTypeContainer(String stringElement) {
+    public TwigTypeContainer(@Nullable String stringElement) {
         this.stringElement = stringElement;
     }
 
@@ -52,11 +57,12 @@ public static Collection<TwigTypeContainer> fromCollection(Project project, Coll
         return twigTypeContainerList;
     }
 
-    public TwigTypeContainer withDataHolder(Object object) {
+    public TwigTypeContainer withDataHolder(@NotNull Object object) {
         this.dataHolder = object;
         return this;
     }
 
+    @Nullable
     public Object getDataHolder() {
         return dataHolder;
     }

src/main/java/fr/adrienbrault/idea/symfony2plugin/templating/variable/resolver/FormFieldResolver.java

@@ -123,20 +123,23 @@ private static void attachFormFields(@Nullable MethodReference methodReference,
     }
 
     @NotNull
-    private static List<TwigTypeContainer> getTwigTypeContainer(@NotNull Method method, @NotNull PhpClass formTypClass) {
-        List<TwigTypeContainer> twigTypeContainers = new ArrayList<>();
+    private static Collection<TwigTypeContainer> getTwigTypeContainer(@NotNull Method method, @NotNull PhpClass formTypClass) {
+        Collection<TwigTypeContainer> twigTypeContainers = new ArrayList<>();
 
         for(MethodReference methodReference: FormUtil.getFormBuilderTypes(method)) {
-
             String fieldName = PsiElementUtils.getMethodParameterAt(methodReference, 0);
+            if (fieldName == null) {
+                continue;
+            }
+
             PsiElement psiElement = PsiElementUtils.getMethodParameterPsiElementAt(methodReference, 1);
             TwigTypeContainer twigTypeContainer = new TwigTypeContainer(fieldName);
 
             // find form field type
             if(psiElement != null) {
                 PhpClass fieldType = FormUtil.getFormTypeClassOnParameter(psiElement);
                 if(fieldType != null) {
-                    twigTypeContainer.withDataHolder(new FormDataHolder(fieldType, formTypClass));
+                    twigTypeContainer.withDataHolder(new FormDataHolder(fieldType, formTypClass, psiElement));
                 }
             }
 

src/main/java/fr/adrienbrault/idea/symfony2plugin/templating/variable/resolver/holder/FormDataHolder.java

@@ -1,7 +1,9 @@
 package fr.adrienbrault.idea.symfony2plugin.templating.variable.resolver.holder;
 
+import com.intellij.psi.PsiElement;
 import com.jetbrains.php.lang.psi.elements.PhpClass;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * @author Daniel Espendiller <daniel@espendiller.net>
@@ -13,11 +15,20 @@ public class FormDataHolder {
     @NotNull
     private final PhpClass formType;
 
+    @Nullable
+    private PsiElement field;
+
     public FormDataHolder(@NotNull PhpClass phpClass, @NotNull PhpClass formType) {
         this.phpClass = phpClass;
         this.formType = formType;
     }
 
+    public FormDataHolder(@NotNull PhpClass phpClass, @NotNull PhpClass formType, @NotNull PsiElement field) {
+        this.phpClass = phpClass;
+        this.formType = formType;
+        this.field = field;
+    }
+
     @NotNull
     public PhpClass getPhpClass() {
         return phpClass;
@@ -27,4 +38,9 @@ public PhpClass getPhpClass() {
     public PhpClass getFormType() {
         return formType;
     }
+
+    @Nullable
+    public PsiElement getField() {
+        return this.field;
+    }
 }