[gitlab] Fix condition for submitting review (IDEA-337325)

#IDEA-337325 Fixed

Follow-up: eb6d4013b9a4144b33b8880fb9c6ec05edcc87d0

(cherry picked from commit d88fba3562799cea28fae854cf164be2099f469c)
(cherry picked from commit e566ed564a824392168a354ed02818f4b7e2eedd)

IJ-CR-124130

GitOrigin-RevId: d39222359d3734bae642d3239fe1624d25c482dc

platform/collaboration-tools/src/com/intellij/collaboration/ui/util/swingBindings.kt

@@ -119,6 +119,14 @@ fun JComponent.bindVisibilityIn(scope: CoroutineScope, visibilityFlow: Flow<Bool
   }
 }
 
+fun JComponent.bindEnabledIn(scope: CoroutineScope, enabledFlow: Flow<Boolean>) {
+  scope.launch(start = CoroutineStart.UNDISPATCHED) {
+    enabledFlow.collect {
+      isEnabled = it
+    }
+  }
+}
+
 fun JComponent.bindDisabledIn(scope: CoroutineScope, disabledFlow: Flow<Boolean>) {
   scope.launch(start = CoroutineStart.UNDISPATCHED) {
     disabledFlow.collect {

plugins/gitlab/src/org/jetbrains/plugins/gitlab/mergerequest/ui/review/GitLabMergeRequestSubmitReviewPopup.kt

@@ -5,10 +5,7 @@ import com.intellij.collaboration.async.inverted
 import com.intellij.collaboration.messages.CollaborationToolsBundle
 import com.intellij.collaboration.ui.HorizontalListPanel
 import com.intellij.collaboration.ui.SimpleHtmlPane
-import com.intellij.collaboration.ui.util.bindChildIn
-import com.intellij.collaboration.ui.util.bindDisabledIn
-import com.intellij.collaboration.ui.util.bindTextIn
-import com.intellij.collaboration.ui.util.bindVisibilityIn
+import com.intellij.collaboration.ui.util.*
 import com.intellij.icons.AllIcons
 import com.intellij.ide.plugins.newui.InstallButton
 import com.intellij.openapi.editor.actions.IncrementalFindAction
@@ -40,6 +37,7 @@ import javax.swing.JButton
 import javax.swing.JComponent
 import javax.swing.JLabel
 import javax.swing.JPanel
+import kotlin.coroutines.cancellation.CancellationException
 import kotlin.coroutines.resume
 
 internal object GitLabMergeRequestSubmitReviewPopup {
@@ -106,8 +104,9 @@ internal object GitLabMergeRequestSubmitReviewPopup {
       private val submitButton = JButton(CollaborationToolsBundle.message("review.submit.action")).apply {
         isOpaque = false
         toolTipText = GitLabBundle.message("merge.request.submit.action.tooltip")
-        bindDisabledIn(cs, combine(vm.isBusy, vm.text) { busy, text ->
-          busy || text.isEmpty()
+        bindEnabledIn(cs, combine(vm.isBusy, vm.text, vm.draftCommentsCount) { busy, text, draftComments ->
+          // Is enabled when not busy and: the text is not blank, or there are draft comments to submit
+          !busy && (text.isNotBlank() || draftComments > 0)
         })
         addActionListener {
           vm.submit()