Add tooltip support for Java operators

Author: hal-eisen-adfa

app/src/main/java/com/itsaky/androidide/actions/file/ShowTooltipAction.kt

@@ -23,7 +23,8 @@ import com.itsaky.androidide.R
 import com.itsaky.androidide.actions.ActionData
 import com.itsaky.androidide.actions.ActionItem
 import com.itsaky.androidide.actions.BaseEditorAction
-import com.itsaky.androidide.editor.utils.isOperatorToken
+import com.itsaky.androidide.editor.utils.isJavaOperatorToken
+import com.itsaky.androidide.editor.utils.isKotlinOperatorToken
 import com.itsaky.androidide.editor.utils.isXmlAttribute
 import com.itsaky.androidide.idetooltips.TooltipCategory
 import com.itsaky.androidide.idetooltips.TooltipManager
@@ -106,7 +107,8 @@ internal fun resolveTooltipTag(
     return when {
         !editorTag.isNullOrEmpty() -> editorTag
         category == TooltipCategory.CATEGORY_XML && isXmlAttribute -> textToUse.substringAfterLast(":")
-        category == TooltipCategory.CATEGORY_KOTLIN && isOperatorToken(textToUse) -> "kotlin.operator.$textToUse"
+        category == TooltipCategory.CATEGORY_KOTLIN && isKotlinOperatorToken(textToUse) -> "kotlin.operator.$textToUse"
+        category == TooltipCategory.CATEGORY_JAVA && isJavaOperatorToken(textToUse) -> "java.operator.$textToUse"
         else -> textToUse
     }
 }

editor/src/main/java/com/itsaky/androidide/editor/utils/OperatorSelection.kt

@@ -25,7 +25,9 @@ import io.github.rosemoe.sora.text.Content
  */
 private val OPERATORS: List<String> =
     listOf(
-        // 3-char
+        // 3-char (=== and !== before 2-char == and !=)
+        "===",
+        "!==",
         ">>>",
         "<<=",
         ">>=",
@@ -86,13 +88,39 @@ private val OPERATORS: List<String> =
 private val OPERATOR_SET: Set<String> = OPERATORS.toSet()
 
 /**
- * Returns true when [text] is exactly one supported Java/Kotlin operator token.
+ * Tokens matched for editor selection that exist only in Kotlin, not Java.
+ * Used so [isJavaOperatorToken] does not emit `java.operator.*` tags for these.
  */
-fun isOperatorToken(text: CharSequence): Boolean {
+private val KOTLIN_ONLY_OPERATOR_TOKENS: Set<String> =
+    setOf(
+        "?.",
+        "?:",
+        "..",
+        "!!",
+        "===",
+        "!==",
+    )
+
+private val JAVA_OPERATOR_SET: Set<String> = OPERATOR_SET - KOTLIN_ONLY_OPERATOR_TOKENS
+
+/**
+ * Returns true when [text] is exactly one Kotlin operator/punctuation token for tooltip lookup
+ * (same token set as the long-press operator list).
+ */
+fun isKotlinOperatorToken(text: CharSequence): Boolean {
     if (text.isEmpty()) return false
     return OPERATOR_SET.contains(text.toString())
 }
 
+/**
+ * Returns true when [text] is exactly one Java operator/punctuation token for tooltip lookup.
+ * Excludes Kotlin-only tokens such as `?.`, `..`, `===`, and `!==`.
+ */
+fun isJavaOperatorToken(text: CharSequence): Boolean {
+    if (text.isEmpty()) return false
+    return JAVA_OPERATOR_SET.contains(text.toString())
+}
+
 /**
  * Returns the column range of the operator at the given position, if any.
  * Columns are 0-based; endColumn is exclusive (one past the last character).