From 6b545d666efed8a7387160ce6448e47adc44c19a Mon Sep 17 00:00:00 2001
From: Calixte Denizet <calixte.denizet@gmail.com>
Date: Tue, 25 Jul 2023 19:00:05 +0200
Subject: [PATCH] [Editor] Avoid to trigger an editor creation when pinching on
 a touch screen

---
 src/display/editor/annotation_editor_layer.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/display/editor/annotation_editor_layer.js b/src/display/editor/annotation_editor_layer.js
index c6fd7f2b6..8bb812c7a 100644
--- a/src/display/editor/annotation_editor_layer.js
+++ b/src/display/editor/annotation_editor_layer.js
@@ -553,6 +553,15 @@ class AnnotationEditorLayer {
    * @param {PointerEvent} event
    */
   pointerdown(event) {
+    if (this.#hadPointerDown) {
+      // It's possible to have a second pointerdown event before a pointerup one
+      // when the user puts a finger on a touchscreen and then add a second one
+      // to start a pinch-to-zoom gesture.
+      // That said, in case it's possible to have two pointerdown events with
+      // a mouse, we don't want to create a new editor in such a case either.
+      this.#hadPointerDown = false;
+      return;
+    }
     const { isMac } = FeatureTest.platform;
     if (event.button !== 0 || (event.ctrlKey && isMac)) {
       // Do nothing on right click.