add kotlin support for key completion and modularize completion providers

src/main/java/de/marhali/easyi18n/editor/I18nCompletionContributor.java

@@ -1,18 +0,0 @@
-package de.marhali.easyi18n.editor;
-
-import com.intellij.codeInsight.completion.CompletionContributor;
-import com.intellij.codeInsight.completion.CompletionType;
-import com.intellij.patterns.*;
-import com.intellij.psi.PsiLiteralValue;
-
-/**
- * Show i18n key completion for literal values.
- * @author marhali
- */
-public class I18nCompletionContributor extends CompletionContributor {
-
-    public I18nCompletionContributor() {
-        extend(CompletionType.BASIC, PlatformPatterns.psiElement().inside(PsiLiteralValue.class),
-                new I18nCompletionProvider());
-    }
-}

src/main/java/de/marhali/easyi18n/editor/KeyCompletionProvider.java

@@ -20,10 +20,12 @@ import java.util.List;
  * I18n translation key completion provider.
  * @author marhali
  */
-public class I18nCompletionProvider extends CompletionProvider<CompletionParameters> {
+public class KeyCompletionProvider extends CompletionProvider<CompletionParameters> {
 
     @Override
-    protected void addCompletions(@NotNull CompletionParameters parameters, @NotNull ProcessingContext context, @NotNull CompletionResultSet result) {
+    protected void addCompletions(@NotNull CompletionParameters parameters,
+                                  @NotNull ProcessingContext context, @NotNull CompletionResultSet result) {
+
         Project project = parameters.getOriginalFile().getProject();
         String previewLocale = SettingsService.getInstance(project).getState().getPreviewLocale();
 

src/main/java/de/marhali/easyi18n/editor/generic/GenericKeyAnnotator.java

@@ -10,7 +10,7 @@ import de.marhali.easyi18n.editor.KeyAnnotator;
 import org.jetbrains.annotations.NotNull;
 
 /**
- * Translation key annotator.
+ * Translation key annotator for generic languages which support {@link PsiLiteralValue}.
  * @author marhali
  */
 public class GenericKeyAnnotator extends KeyAnnotator implements Annotator {

src/main/java/de/marhali/easyi18n/editor/generic/GenericKeyCompletionContributor.java

@@ -0,0 +1,19 @@
+package de.marhali.easyi18n.editor.generic;
+
+import com.intellij.codeInsight.completion.CompletionContributor;
+import com.intellij.codeInsight.completion.CompletionType;
+import com.intellij.patterns.*;
+import com.intellij.psi.PsiLiteralValue;
+import de.marhali.easyi18n.editor.KeyCompletionProvider;
+
+/**
+ * Translation key completion for generic languages which support {@link PsiLiteralValue}.
+ * @author marhali
+ */
+public class GenericKeyCompletionContributor extends CompletionContributor {
+
+    public GenericKeyCompletionContributor() {
+        extend(CompletionType.BASIC, PlatformPatterns.psiElement().inside(PsiLiteralValue.class),
+                new KeyCompletionProvider());
+    }
+}

src/main/java/de/marhali/easyi18n/editor/kotlin/KotlinKeyCompletionContributor.java

@@ -0,0 +1,20 @@
+package de.marhali.easyi18n.editor.kotlin;
+
+import com.intellij.codeInsight.completion.CompletionContributor;
+import com.intellij.codeInsight.completion.CompletionType;
+import com.intellij.patterns.PlatformPatterns;
+
+import de.marhali.easyi18n.editor.KeyCompletionProvider;
+import org.jetbrains.kotlin.psi.KtLiteralStringTemplateEntry;
+
+/**
+ * Kotlin specific translation key completion contributor.
+ * @author marhali
+ */
+public class KotlinKeyCompletionContributor  extends CompletionContributor {
+
+    public KotlinKeyCompletionContributor() {
+        extend(CompletionType.BASIC, PlatformPatterns.psiElement().inside(KtLiteralStringTemplateEntry.class),
+                new KeyCompletionProvider());
+    }
+}

src/main/resources/META-INF/de.marhali.easyi18n-kotlin.xml

@@ -1,5 +1,8 @@
 <idea-plugin>
     <extensions defaultExtensionNs="com.intellij">
         <annotator language="kotlin" implementationClass="de.marhali.easyi18n.editor.kotlin.KotlinKeyAnnotator" />
+
+        <completion.contributor language="kotlin"
+                                implementationClass="de.marhali.easyi18n.editor.kotlin.KotlinKeyCompletionContributor" />
     </extensions>
 </idea-plugin>

src/main/resources/META-INF/plugin.xml

@@ -14,7 +14,7 @@
         <projectService serviceImplementation="de.marhali.easyi18n.service.SettingsService" />
 
         <completion.contributor language="any"
-                                implementationClass="de.marhali.easyi18n.editor.I18nCompletionContributor" />
+                                implementationClass="de.marhali.easyi18n.editor.generic.GenericKeyCompletionContributor" />
 
         <annotator language="" implementationClass="de.marhali.easyi18n.editor.generic.GenericKeyAnnotator" />
     </extensions>