feat: More descriptive location labels (instead of just .workspace) (#…

…6916)

base/src/META-INF/blaze-base.xml

@@ -229,6 +229,7 @@
     <postStartupActivity implementation="com.google.idea.blaze.base.formatter.ExternalFormatterCodeStyleManager$Installer"/>
     <postStartupActivity implementation="com.google.idea.blaze.base.prefetch.PrefetchProjectInitializer" />
     <postStartupActivity implementation="com.google.idea.blaze.base.project.OpenProjectViewStartupActivity"/>
+    <moduleRendererFactory implementation="com.google.idea.blaze.base.ui.BlazeModuleRendererFactory" order="first"/>
 
 
     <toolWindow id="Blaze"

base/src/com/google/idea/blaze/base/ui/BlazeModuleRendererFactory.java

@@ -0,0 +1,55 @@
+package com.google.idea.blaze.base.ui;
+
+import com.google.idea.blaze.base.model.primitives.WorkspaceRoot;
+import com.google.idea.blaze.base.settings.Blaze;
+import com.google.idea.blaze.base.settings.BlazeImportSettings;
+import com.intellij.ide.util.ModuleRendererFactory;
+import com.intellij.openapi.module.ModuleType;
+import com.intellij.openapi.module.ModuleUtilCore;
+import com.intellij.openapi.roots.ProjectFileIndex;
+import com.intellij.openapi.roots.ProjectRootManager;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.util.PsiUtilCore;
+import com.intellij.util.TextWithIcon;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Optional;
+
+public class BlazeModuleRendererFactory extends ModuleRendererFactory {
+    @Override
+    protected boolean handles(Object element) {
+        if (element instanceof PsiElement psiElement && psiElement.isValid()) {
+            var project = psiElement.getProject();
+            if (Blaze.getProjectType(project) == BlazeImportSettings.ProjectType.UNKNOWN) {
+                return false;
+            }
+            var module = ModuleUtilCore.findModuleForPsiElement(psiElement);
+
+            return module != null && module.getName().equals(".workspace");
+        }
+        return false;
+    }
+
+    @Override
+    public @Nullable TextWithIcon getModuleTextWithIcon(Object element) {
+        if (element instanceof PsiElement psiElement && psiElement.isValid()) {
+            var project = psiElement.getProject();
+            var file = PsiUtilCore.getVirtualFile(psiElement);
+            var module = Optional.ofNullable(ModuleUtilCore.findModuleForPsiElement(psiElement));
+
+            ProjectFileIndex index = ProjectRootManager.getInstance(project).getFileIndex();
+            if (file == null) {
+                return null;
+            }
+            var sourceRoot = index.getSourceRootForFile(file);
+            var relativeSourceRoot = WorkspaceRoot.fromProject(project).relativize(sourceRoot);
+            if (relativeSourceRoot == null) {
+                return null;
+            }
+            return new TextWithIcon(
+                    relativeSourceRoot.toString(),
+                    module.map(m -> ModuleType.get(m).getIcon()).orElse(null));
+        }
+        return null;
+    }
+}