IDEA-196403 Color picker for color icons in theme JSONs

plugins/devkit/devkit-core/resources/org/jetbrains/idea/devkit/DevKitBundle.properties

@@ -108,6 +108,8 @@ new.theme.dialog.name.text.field.text=Name:
 new.theme.dialog.is.dark.checkbox.text=Dark theme
 new.theme.dialog.name.empty=Theme Name must not be empty
 
+theme.choose.color.dialog.title=Choose Color
+
 new.menu.application.component.text=Application Component
 new.menu.module.component.text=Module Component
 new.menu.project.component.text=Project Component

plugins/devkit/devkit-core/src/themes/ThemeColorAnnotator.java

@@ -2,21 +2,29 @@
 package org.jetbrains.idea.devkit.themes;
 
 import com.intellij.codeInsight.daemon.LineMarkerSettings;
+import com.intellij.json.psi.JsonElementGenerator;
 import com.intellij.json.psi.JsonStringLiteral;
 import com.intellij.lang.annotation.Annotation;
 import com.intellij.lang.annotation.AnnotationHolder;
 import com.intellij.lang.annotation.Annotator;
 import com.intellij.openapi.actionSystem.AnAction;
 import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.actionSystem.CommonDataKeys;
+import com.intellij.openapi.command.WriteCommandAction;
+import com.intellij.openapi.editor.Editor;
 import com.intellij.openapi.editor.markup.GutterIconRenderer;
+import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.PsiElement;
+import com.intellij.ui.ColorChooser;
 import com.intellij.ui.ColorLineMarkerProvider;
+import com.intellij.ui.ColorUtil;
 import com.intellij.util.ui.ColorIcon;
 import com.intellij.util.ui.EmptyIcon;
 import com.intellij.util.ui.JBUI;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.idea.devkit.DevKitBundle;
 
 import javax.swing.*;
 import java.awt.*;
@@ -60,7 +68,7 @@ public class ThemeColorAnnotator implements Annotator {
     private final JsonStringLiteral myLiteral;
 
 
-    private MyRenderer(String colorHex, JsonStringLiteral literal) {
+    private MyRenderer(@NotNull String colorHex, @NotNull JsonStringLiteral literal) {
       myColorHex = colorHex;
       myLiteral = literal;
     }
@@ -82,18 +90,36 @@ public class ThemeColorAnnotator implements Annotator {
       return new AnAction() {
         @Override
         public void actionPerformed(@NotNull AnActionEvent e) {
-            //TODO implement
+          Editor editor = CommonDataKeys.EDITOR.getData(e.getDataContext());
+          if (editor == null) return;
+
+          Color currentColor = getColor(myColorHex);
+          if (currentColor == null) return;
+
+          Color newColor = ColorChooser.chooseColor(editor.getComponent(),
+                                                    DevKitBundle.message("theme.choose.color.dialog.title"),
+                                                    currentColor);
+          if (newColor == null || newColor.equals(currentColor)) return;
+
+          String newColorHex = ColorUtil.toHtmlColor(newColor);
+          Project project = myLiteral.getProject();
+          JsonStringLiteral newLiteral = new JsonElementGenerator(project).createStringLiteral(newColorHex);
+
+          WriteCommandAction.writeCommandAction(project, myLiteral.getContainingFile()).run(() -> myLiteral.replace(newLiteral));
         }
       };
     }
 
     @Nullable
-    @Override
-    public String getTooltipText() {
-      return null; //TODO implement
+    private static Color getColor(@NotNull String colorHex) {
+      try {
+        return Color.decode(colorHex);
+      }
+      catch (NumberFormatException ignored) {
+        return null;
+      }
     }
 
-
     @Override
     public boolean equals(Object o) {
       if (this == o) return true;