From 2ce51a6bb54703d391b863e5b6b7304f70daa100 Mon Sep 17 00:00:00 2001
From: Eugene Kudelevsky <Eugene.Kudelevsky@jetbrains.com>
Date: Mon, 15 Oct 2012 18:17:35 +0400
Subject: [PATCH] PredefinedCodeStyle is extension point now

---
 .../LanguageCodeStyleSettingsProvider.java    |  3 ++-
 .../psi/codeStyle/PredefinedCodeStyle.java    | 18 +++++++++++++---
 .../options/TabbedLanguageCodeStylePanel.java | 21 +++++++++++++------
 .../src/META-INF/LangExtensionPoints.xml      |  2 ++
 4 files changed, 34 insertions(+), 10 deletions(-)

diff --git a/platform/lang-api/src/com/intellij/psi/codeStyle/LanguageCodeStyleSettingsProvider.java b/platform/lang-api/src/com/intellij/psi/codeStyle/LanguageCodeStyleSettingsProvider.java
index 991abd19ce18..274d1bf08e11 100644
--- a/platform/lang-api/src/com/intellij/psi/codeStyle/LanguageCodeStyleSettingsProvider.java
+++ b/platform/lang-api/src/com/intellij/psi/codeStyle/LanguageCodeStyleSettingsProvider.java
@@ -109,9 +109,10 @@ public abstract class LanguageCodeStyleSettingsProvider {
   }
 
   /**
-   * @return Array of predefined code styles (empty array by default).
+   * @deprecated use PredefinedCodeStyle extension point instead
    */
   @NotNull
+  @Deprecated
   public PredefinedCodeStyle[] getPredefinedCodeStyles() {
     return PredefinedCodeStyle.EMPTY_ARRAY;
   }
diff --git a/platform/lang-api/src/com/intellij/psi/codeStyle/PredefinedCodeStyle.java b/platform/lang-api/src/com/intellij/psi/codeStyle/PredefinedCodeStyle.java
index 55436cf5a3a7..9229ceaa1e0b 100644
--- a/platform/lang-api/src/com/intellij/psi/codeStyle/PredefinedCodeStyle.java
+++ b/platform/lang-api/src/com/intellij/psi/codeStyle/PredefinedCodeStyle.java
@@ -17,12 +17,15 @@ package com.intellij.psi.codeStyle;
 
 
 import com.intellij.lang.Language;
+import com.intellij.openapi.extensions.ExtensionPointName;
 import org.jetbrains.annotations.NotNull;
 
 /**
  * @author Rustam Vishnyakov
  */
 public abstract class PredefinedCodeStyle {
+  public static final ExtensionPointName<PredefinedCodeStyle> EP_NAME =
+    ExtensionPointName.create("com.intellij.predefinedCodeStyle");
 
   public final static PredefinedCodeStyle[] EMPTY_ARRAY = new PredefinedCodeStyle[]{};
   private final String myName;
@@ -46,9 +49,17 @@ public abstract class PredefinedCodeStyle {
   public boolean equals(Object obj) {
     if (!(obj instanceof PredefinedCodeStyle)) return false;
     PredefinedCodeStyle otherStyle = (PredefinedCodeStyle)obj;
-    return myName.equals(otherStyle.getName());
+    return myName.equals(otherStyle.getName()) &&
+           myLanguage.equals(otherStyle.getLanguage());
   }
-  
+
+  @Override
+  public int hashCode() {
+    int result = myName.hashCode();
+    result = 31 * result + myLanguage.hashCode();
+    return result;
+  }
+
   public String getName() {
     return myName;
   }
@@ -57,7 +68,8 @@ public abstract class PredefinedCodeStyle {
   public String toString() {
     return myName;
   }
-  
+
+  @NotNull
   public Language getLanguage() {
     return myLanguage;
   }
diff --git a/platform/lang-impl/src/com/intellij/application/options/TabbedLanguageCodeStylePanel.java b/platform/lang-impl/src/com/intellij/application/options/TabbedLanguageCodeStylePanel.java
index e0b6099a396e..35a2ba0a6a00 100644
--- a/platform/lang-impl/src/com/intellij/application/options/TabbedLanguageCodeStylePanel.java
+++ b/platform/lang-impl/src/com/intellij/application/options/TabbedLanguageCodeStylePanel.java
@@ -40,9 +40,7 @@ import javax.swing.*;
 import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
+import java.util.*;
 import java.util.List;
 
 /**
@@ -357,9 +355,20 @@ public abstract class TabbedLanguageCodeStylePanel extends CodeStyleAbstractPane
   }
 
   private PredefinedCodeStyle[] getPredefinedStyles() {
-    LanguageCodeStyleSettingsProvider provider = LanguageCodeStyleSettingsProvider.forLanguage(getDefaultLanguage());
-    if (provider == null) return new PredefinedCodeStyle[0];
-    return provider.getPredefinedCodeStyles();
+    final Language language = getDefaultLanguage();
+    final List<PredefinedCodeStyle> result = new ArrayList<PredefinedCodeStyle>();
+
+    for (PredefinedCodeStyle codeStyle : PredefinedCodeStyle.EP_NAME.getExtensions()) {
+      if (codeStyle.getLanguage().equals(language)) {
+        result.add(codeStyle);
+      }
+    }
+    final LanguageCodeStyleSettingsProvider provider = LanguageCodeStyleSettingsProvider.forLanguage(getDefaultLanguage());
+
+    if (provider != null) {
+      result.addAll(Arrays.asList(provider.getPredefinedCodeStyles()));
+    }
+    return result.toArray(new PredefinedCodeStyle[result.size()]);
   }
 
 
diff --git a/platform/platform-resources/src/META-INF/LangExtensionPoints.xml b/platform/platform-resources/src/META-INF/LangExtensionPoints.xml
index 936bbc58fe60..6e8a0f3da7ab 100644
--- a/platform/platform-resources/src/META-INF/LangExtensionPoints.xml
+++ b/platform/platform-resources/src/META-INF/LangExtensionPoints.xml
@@ -515,6 +515,8 @@
 
   <extensionPoint name="langCodeStyleSettingsProvider" interface="com.intellij.psi.codeStyle.LanguageCodeStyleSettingsProvider"/>
 
+  <extensionPoint name="predefinedCodeStyle" interface="com.intellij.psi.codeStyle.PredefinedCodeStyle"/>
+
   <extensionPoint name="semContributor"
                   beanClass="com.intellij.semantic.SemContributorEP" area="IDEA_PROJECT"/>