[Editor] Correctly hide deleted annotations

src/display/editor/annotation_editor_layer.js

@@ -359,9 +359,7 @@ class AnnotationEditorLayer {
       for (const editable of editables) {
         const { id } = editable.data;
         if (this.#uiManager.isDeletedAnnotationElement(id)) {
-          editable.updateEdited({
-            deleted: true,
-          });
+          editable.updateEdited({ deleted: true });
           continue;
         }
         let editor = resetAnnotations.get(id);

src/display/editor/editor.js

@@ -2155,6 +2155,10 @@ class AnnotationEditor {
    * @returns {HTMLElement|null}
    */
   renderAnnotationElement(annotation) {
+    if (this.deleted) {
+      annotation.hide();
+      return null;
+    }
     let content = annotation.container.querySelector(".annotationContent");
     if (!content) {
       content = document.createElement("div");

src/display/editor/freetext.js

@@ -885,6 +885,9 @@ class FreeTextEditor extends AnnotationEditor {
   /** @inheritdoc */
   renderAnnotationElement(annotation) {
     const content = super.renderAnnotationElement(annotation);
+    if (!content) {
+      return null;
+    }
     const { style } = content;
     style.fontSize = `calc(${this.#fontSize}px * var(--total-scale-factor))`;
     style.color = this.#color;

src/display/editor/highlight.js

@@ -1059,6 +1059,10 @@ class HighlightEditor extends AnnotationEditor {
 
   /** @inheritdoc */
   renderAnnotationElement(annotation) {
+    if (this.deleted) {
+      annotation.hide();
+      return null;
+    }
     const params = {
       rect: this.getRect(0, 0),
     };

src/display/editor/ink.js

@@ -295,6 +295,10 @@ class InkEditor extends DrawingEditor {
 
   /** @inheritdoc */
   renderAnnotationElement(annotation) {
+    if (this.deleted) {
+      annotation.hide();
+      return null;
+    }
     const { points, rect } = this.serializeDraw(/* isForCopying = */ false);
     const params = {
       rect,

src/display/editor/stamp.js

@@ -930,6 +930,10 @@ class StampEditor extends AnnotationEditor {
 
   /** @inheritdoc */
   renderAnnotationElement(annotation) {
+    if (this.deleted) {
+      annotation.hide();
+      return null;
+    }
     const params = {
       rect: this.getRect(0, 0),
     };

test/integration/freetext_editor_spec.mjs

@@ -37,6 +37,7 @@ import {
   kbModifierDown,
   kbModifierUp,
   kbRedo,
+  kbSelectAll,
   kbUndo,
   loadAndWait,
   moveEditor,
@@ -3547,4 +3548,62 @@ describe("FreeText Editor", () => {
       );
     });
   });
+
+  describe("Delete some annotations, scroll to the end and then scroll to the beginning", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait(
+        "tracemonkey_with_annotations.pdf",
+        ".annotationEditorLayer"
+      );
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that the annotations aren't displayed after scrolling", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await switchToFreeText(page);
+
+          await kbSelectAll(page);
+          await page.waitForFunction(
+            () => document.querySelectorAll(".selectedEditor").length === 4
+          );
+
+          await page.keyboard.press("Backspace");
+          await page.waitForFunction(() => {
+            const { map } =
+              window.PDFViewerApplication.pdfDocument.annotationStorage
+                .serializable;
+            return (
+              map.size === 4 && [...map.values()].every(entry => entry.deleted)
+            );
+          });
+
+          // Disable editing mode.
+          await switchToFreeText(page, /* disable = */ true);
+
+          const oneToOne = Array.from(new Array(13).keys(), n => n + 2).concat(
+            Array.from(new Array(13).keys(), n => 13 - n)
+          );
+          for (const pageNumber of oneToOne) {
+            await scrollIntoView(
+              page,
+              `.page[data-page-number = "${pageNumber}"]`
+            );
+          }
+
+          await page.waitForFunction(
+            () =>
+              document.querySelectorAll(
+                `.annotationLayer > section:is(.stampAnnotation, .inkAnnotation, .highlightAnnotation, .freeTextAnnotation)[hidden = ""]`
+              ).length === 4
+          );
+        })
+      );
+    });
+  });
 });

test/pdfs/.gitignore

@@ -739,3 +739,4 @@
 !dates.pdf
 !dates_save.pdf
 !print_protection.pdf
+!tracemonkey_with_annotations.pdf