From 5892e4c828dd1b26a3fcba034d62af70dfa2e3ea Mon Sep 17 00:00:00 2001
From: Gyuri Majercsik <majercsik.gyuri@gmail.com>
Date: Mon, 26 Apr 2021 20:09:03 +0300
Subject: [PATCH] 171: support for non-scrollable text editor (#188)

Co-authored-by: Gyuri Majercsik <gyuri@fluttech.com>
---
 lib/widgets/editor.dart     |  1 -
 lib/widgets/raw_editor.dart | 33 ++++++++++++++++++---------------
 2 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/lib/widgets/editor.dart b/lib/widgets/editor.dart
index d15a8789..f021b88a 100644
--- a/lib/widgets/editor.dart
+++ b/lib/widgets/editor.dart
@@ -1073,7 +1073,6 @@ class RenderEditableContainerBox extends RenderBox
 
   @override
   void performLayout() {
-    assert(!constraints.hasBoundedHeight);
     assert(constraints.hasBoundedWidth);
     _resolvePadding();
     assert(_resolvedPadding != null);
diff --git a/lib/widgets/raw_editor.dart b/lib/widgets/raw_editor.dart
index 198c0f8e..0497a04d 100644
--- a/lib/widgets/raw_editor.dart
+++ b/lib/widgets/raw_editor.dart
@@ -994,25 +994,28 @@ class RawEditorState extends EditorState
 
     _showCaretOnScreenScheduled = true;
     SchedulerBinding.instance!.addPostFrameCallback((_) {
-      _showCaretOnScreenScheduled = false;
+      if (widget.scrollable) {
+        _showCaretOnScreenScheduled = false;
 
-      final viewport = RenderAbstractViewport.of(getRenderEditor())!;
-      final editorOffset = getRenderEditor()!
-          .localToGlobal(const Offset(0, 0), ancestor: viewport);
-      final offsetInViewport = _scrollController!.offset + editorOffset.dy;
+        final viewport = RenderAbstractViewport.of(getRenderEditor());
 
-      final offset = getRenderEditor()!.getOffsetToRevealCursor(
-        _scrollController!.position.viewportDimension,
-        _scrollController!.offset,
-        offsetInViewport,
-      );
+        final editorOffset = getRenderEditor()!
+            .localToGlobal(const Offset(0, 0), ancestor: viewport);
+        final offsetInViewport = _scrollController!.offset + editorOffset.dy;
 
-      if (offset != null) {
-        _scrollController!.animateTo(
-          offset,
-          duration: const Duration(milliseconds: 100),
-          curve: Curves.fastOutSlowIn,
+        final offset = getRenderEditor()!.getOffsetToRevealCursor(
+          _scrollController!.position.viewportDimension,
+          _scrollController!.offset,
+          offsetInViewport,
         );
+
+        if (offset != null) {
+          _scrollController!.animateTo(
+            offset,
+            duration: const Duration(milliseconds: 100),
+            curve: Curves.fastOutSlowIn,
+          );
+        }
       }
     });
   }