PY-84031: Welcome screen should use canOpenFilesFromSystemFileManager to decide if it should open non-project files

Space-RevId: 498f6f351ca3cf9541c93cb7d9483e05586ed02b

GitOrigin-RevId: 0a0da55dc35a9aa3061405f3b1ad266ba70b3044

platform/non-modal-welcome-screen/src/com/intellij/platform/ide/nonModalWelcomeScreen/WelcomeScreenCommandLineProjectOpenProcessor.kt

@@ -44,7 +44,10 @@ private abstract class DummyProjectOpenProcessor(override val name: String) : Pr
 private class WelcomeScreenCommandLineProjectOpenProcessor : DummyProjectOpenProcessor("WelcomeScreenCommandLineProjectOpenProcessor") {
   override suspend fun openProjectAndFile(file: Path, tempProject: Boolean, options: OpenProjectTask): Project? {
     val provider = getWelcomeScreenProjectProvider() ?: return null
-    return openWelcomeScreenProject(file)
+    if (provider.canOpenFilesFromSystemFileManager()) {
+      return openWelcomeScreenProject(file)
+    }
+    return null
   }
 
   private suspend fun openWelcomeScreenProject(file: Path): Project {

platform/platform-impl/src/com/intellij/openapi/wm/ex/WelcomeScreenProjectProvider.kt

@@ -72,6 +72,10 @@ abstract class WelcomeScreenProjectProvider {
       return getWelcomeScreenProjectProvider()?.getWelcomeScreenProjectPath()
     }
 
+    fun canOpenFilesFromSystemFileManager(): Boolean {
+      return getWelcomeScreenProjectProvider()?.canOpenFilesFromSystemFileManager() ?: false
+    }
+
     suspend fun createOrOpenWelcomeScreenProject(extension: WelcomeScreenProjectProvider): Project {
       val projectPath = extension.getWelcomeScreenProjectPath()
 
@@ -93,6 +97,11 @@ abstract class WelcomeScreenProjectProvider {
     }
   }
 
+  /**
+   * Return true if the welcome screen project can open non-project files from the file manager (Explorer, Finder).
+   */
+  abstract fun canOpenFilesFromSystemFileManager(): Boolean
+
   protected open fun getWelcomeScreenProjectPath(): Path {
     return ProjectUtil.getProjectPath(getWelcomeScreenProjectName()).absolute()
   }