[FIX] mail: prevent composer cursor from randomly changing position

task-2388600

closes odoo/odoo#62446

Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>

1 files changed, 11 insertions, 8 deletions

diff --git a/addons/mail/static/src/components/composer_text_input/composer_text_input.js b/addons/mail/static/src/components/composer_text_input/composer_text_input.js
index 1b71e22afe1..3fba8115254 100644
--- a/addons/mail/static/src/components/composer_text_input/composer_text_input.js
+++ b/addons/mail/static/src/components/composer_text_input/composer_text_input.js
@@ -153,14 +153,16 @@ class ComposerTextInput extends Component {
         if (!this.composer) {
             return;
         }
-        this._textareaRef.el.value = this.composer.textInputContent;
-        this._mirroredTextareaRef.el.value = this.composer.textInputContent;
-        if (this.composer.hasFocus) {
-            this._textareaRef.el.setSelectionRange(
-                this.composer.textInputCursorStart,
-                this.composer.textInputCursorEnd,
-                this.composer.textInputSelectionDirection,
-            );
+        if (this.composer.isLastStateChangeProgrammatic) {
+            this._textareaRef.el.value = this.composer.textInputContent;
+            if (this.composer.hasFocus) {
+                this._textareaRef.el.setSelectionRange(
+                    this.composer.textInputCursorStart,
+                    this.composer.textInputCursorEnd,
+                    this.composer.textInputSelectionDirection,
+                );
+            }
+            this.composer.update({ isLastStateChangeProgrammatic: false });
         }
         this._updateHeight();
     }
@@ -171,6 +173,7 @@ class ComposerTextInput extends Component {
      * @private
      */
     _updateHeight() {
+        this._mirroredTextareaRef.el.value = this.composer.textInputContent;
         this._textareaRef.el.style.height = (this._mirroredTextareaRef.el.scrollHeight) + "px";
     }