fix(editor): tab in symbol input does not shift snippet to next tab stop

app/src/main/java/com/itsaky/androidide/adapters/SymbolInputAdapter.java

@@ -17,6 +17,7 @@
  */
 package com.itsaky.androidide.adapters;
 
+import static com.itsaky.androidide.preferences.utils.EditorUtilKt.getIndentationString;
 import static com.itsaky.androidide.utils.ResourceUtilsKt.resolveAttr;
 
 import android.annotation.SuppressLint;
@@ -95,6 +96,18 @@ public class SymbolInputAdapter extends RecyclerView.Adapter<SymbolInputAdapter.
     if (selectionOffset < 0 || selectionOffset > text.length()) {
       return;
     }
+
+    final var controller = editor.getSnippetController();
+    if ("\t".equals(text) && controller.isInSnippet()) {
+      controller.shiftToNextTabStop();
+      return;
+    }
+
+    if ("\t".equals(text)) {
+      text = getIndentationString();
+      selectionOffset = text.length();
+    }
+
     var cur = editor.getText().getCursor();
     if (cur.isSelected()) {
       editor

app/src/main/java/com/itsaky/androidide/utils/Symbols.kt

@@ -17,9 +17,6 @@
  */
 package com.itsaky.androidide.utils
 
-import com.itsaky.androidide.preferences.internal.tabSize
-import com.itsaky.androidide.preferences.internal.useSoftTab
-import com.itsaky.androidide.preferences.utils.indentationString
 import com.itsaky.androidide.ui.SymbolInputView.Symbol
 import java.io.File
 
@@ -124,17 +121,12 @@ object Symbols {
   }
 
   private class TabSymbol : Symbol("↹") {
-
     override fun getCommit(): String {
-      return createTabChars()
+      return "\t"
     }
 
     override fun getOffset(): Int {
-      return createTabChars().length
-    }
-
-    private fun createTabChars(): String {
-      return indentationString
+      return 1
     }
   }
 }

lsp/java/src/main/java/com/itsaky/androidide/lsp/java/providers/completion/SnippetCompletionProvider.kt

@@ -27,6 +27,7 @@ import com.itsaky.androidide.lsp.java.utils.EditHelper
 import com.itsaky.androidide.lsp.models.CompletionItem
 import com.itsaky.androidide.lsp.models.CompletionResult
 import com.itsaky.androidide.lsp.models.MatchLevel
+import com.itsaky.androidide.preferences.internal.tabSize
 import java.nio.file.Path
 import openjdk.source.tree.ClassTree
 import openjdk.source.tree.CompilationUnitTree
@@ -88,7 +89,7 @@ class SnippetCompletionProvider(
         JavaSnippetRepository.snippets[JavaSnippetScope.GLOBAL]?.let { addAll(it) }
       }
 
-    val indent = EditHelper.indent(task.task, task.root(), path.leaf)
+    val indent = EditHelper.indent(task.task, task.root(), path.leaf) - tabSize
     for (snippet in snippets) {
       val matchLevel = matchLevel(snippet.prefix, partial)
       if (matchLevel == MatchLevel.NO_MATCH) {