fix: update visibility check with overflow: hidden and element on the edge (#27586)

Co-authored-by: Chris Breiding <chrisbreiding@users.noreply.github.com>
Co-authored-by: Matt Schile <mschile@cypress.io>
Co-authored-by: Jennifer Shehane <jennifer@cypress.io>
Co-authored-by: Emily Rohrbough <emilyrohrbough@yahoo.com>
Co-authored-by: Emily Rohrbough <emilyrohrbough@users.noreply.github.com>

cli/CHANGELOG.md

@@ -1,4 +1,12 @@
 <!-- See the ../guides/writing-the-cypress-changelog.md for details on writing the changelog. -->
+## 13.4.1
+
+_Released 11/7/2023 (PENDING)_
+
+**Bugfixes:**
+
+- Fixed an issue determining visibility when an element is hidden by an ancestor with a shared edge. Fixes [#27514](https://github.com/cypress-io/cypress/issues/27514).
+
 ## 13.4.0
 
 _Released 10/30/2023_

packages/driver/cypress/e2e/dom/visibility.cy.ts

@@ -356,25 +356,25 @@ describe('src/cypress/dom/visibility', () => {
 
       this.$elOutOfParentBoundsToLeft = add(`\
 <div style='width: 100px; height: 100px; overflow: hidden; position: relative;'>
-  <span style='position: absolute; left: -400px; top: 0px;'>position: absolute, out of bounds left</span>
+  <span style='position: absolute; width: 100px; height: 100px; left: -100px; top: 0px;'>position: absolute, out of bounds left</span>
 </div>\
 `)
 
       this.$elOutOfParentBoundsToRight = add(`\
 <div id="elOutOfParentBoundsToRight" style='width: 100px; height: 100px; overflow: hidden; position: relative;'>
-  <span style='position: absolute; left: 200px; top: 0px;'>position: absolute, out of bounds right</span>
+  <span style='position: absolute; width: 100px; height: 100px; right: -100px; top: 0px;'>position: absolute, out of bounds right</span>
 </div>\
 `)
 
       this.$elOutOfParentBoundsAbove = add(`\
 <div style='width: 100px; height: 100px; overflow: hidden; position: relative;'>
-  <span style='position: absolute; left: 0px; top: -100px;'>position: absolute, out of bounds above</span>
+  <span style='position: absolute; width: 100px; height: 100px; left: 0px; top: -100px;'>position: absolute, out of bounds above</span>
 </div>\
 `)
 
       this.$elOutOfParentBoundsBelow = add(`\
 <div id="elOutOfParentBoundsBelow" style='width: 100px; height: 100px; overflow: hidden; position: relative;'>
-  <span style='position: absolute; left: 0px; top: 200px;'>position: absolute, out of bounds below</span>
+  <span style='position: absolute; width: 100px; height: 100px; left: 0px; bottom: -100px;'>position: absolute, out of bounds below</span>
 </div>\
 `)
 
@@ -819,10 +819,9 @@ describe('src/cypress/dom/visibility', () => {
     })
 
     describe('css overflow', () => {
-      it('is visible when parent doesnt have overflow hidden', function () {
-        expect(this.$parentNoWidthHeightOverflowAuto.find('span')).to.be.visible
-
-        expect(this.$parentNoWidthHeightOverflowAuto.find('span')).to.not.be.hidden
+      it('is hidden when parent overflow auto and no width/height', function () {
+        expect(this.$parentNoWidthHeightOverflowAuto.find('span')).to.not.be.visible
+        expect(this.$parentNoWidthHeightOverflowAuto.find('span')).to.be.hidden
       })
 
       it('is hidden when parent overflow hidden and out of bounds to left', function () {
@@ -897,7 +896,7 @@ describe('src/cypress/dom/visibility', () => {
     })
 
     describe('css clip-path', () => {
-      // TODO: why is this skipped?
+      // TODO: handle clip path 'hidden' equivalents
       it.skip('is hidden when outside of parents clip-path', function () {
         expect(this.$parentWithClipPathAbsolutePositionElOutsideClipPath.find('span')).to.be.hidden
       })

packages/driver/cypress/e2e/dom/visibility_shadow_dom.cy.ts

@@ -303,7 +303,7 @@ describe('src/cypress/dom/visibility - shadow dom', () => {
         `<div style='width: 100px; height: 100px; overflow: hidden; position: relative;'>
           <shadow-root id="el-out-of-parent-bounds-to-left"></shadow-root>
         </div>`,
-        `<span style='position: absolute; left: -400px; top: 0;'>position: absolute, out of bounds left</span>`,
+        `<span style='position: absolute; width: 100px; height: 100px; left: -100px; top: 0;'>position: absolute, out of bounds left</span>`,
         '#el-out-of-parent-bounds-to-left',
       )
 
@@ -316,7 +316,7 @@ describe('src/cypress/dom/visibility - shadow dom', () => {
         `<div style='width: 100px; height: 100px; overflow: hidden; position: relative;'>
           <shadow-root id="el-out-of-parent-bounds-to-right"></shadow-root>
         </div>`,
-        `<span style='position: absolute; left: 200px; top: 0;'>position: absolute, out of bounds right</span>`,
+        `<span style='position: absolute; width: 100px; height: 100px; right: -100px; top: 0;'>position: absolute, out of bounds right</span>`,
         '#el-out-of-parent-bounds-to-right',
       )
 
@@ -329,7 +329,7 @@ describe('src/cypress/dom/visibility - shadow dom', () => {
         `<div style='width: 100px; height: 100px; overflow: hidden; position: relative;'>
           <shadow-root id="el-out-of-parent-bounds-above"></shadow-root>
         </div>`,
-        `<span style='position: absolute; top: -100px; left: 0;'>position: absolute, out of bounds above</span>`,
+        `<span style='position: absolute; width: 100px; height: 100px; top: -100px; left: 0;'>position: absolute, out of bounds above</span>`,
         '#el-out-of-parent-bounds-above',
       )
 
@@ -342,7 +342,7 @@ describe('src/cypress/dom/visibility - shadow dom', () => {
         `<div style='width: 100px; height: 100px; overflow: hidden; position: relative;'>
           <shadow-root id="el-out-of-parent-bounds-below"></shadow-root>
         </div>`,
-        `<span style='position: absolute; top: 200px; left: 0;'>position: absolute, out of bounds below</span>`,
+        `<span style='position: absolute; width: 100px; height: 100px; bottom: -100px; left: 0;'>position: absolute, out of bounds below</span>`,
         '#el-out-of-parent-bounds-below',
       )
 

packages/driver/src/dom/elements/find.ts

@@ -176,7 +176,13 @@ export const isAncestor = ($el, $maybeAncestor) => {
 }
 
 export const isChild = ($el, $maybeChild) => {
-  return $el.children().index($maybeChild) >= 0
+  let children = $el.children()
+
+  if (children.length && children[0].nodeName === 'SHADOW-ROOT') {
+    return isDescendent($el, $maybeChild)
+  }
+
+  return children.index($maybeChild) >= 0
 }
 
 export const isDescendent = ($el1, $el2) => {

packages/driver/src/dom/visibility.ts

@@ -316,24 +316,27 @@ const elIsOutOfBoundsOfAncestorsOverflow = function ($el, $ancestor = getParent(
     return false
   }
 
-  const elProps = $coordinates.getElementPositioning($el)
-
   if (canClipContent($el, $ancestor)) {
+    const elProps = $coordinates.getElementPositioning($el)
     const ancestorProps = $coordinates.getElementPositioning($ancestor)
 
+    if (elHasPositionAbsolute($el) && (ancestorProps.width === 0 || ancestorProps.height === 0)) {
+      return elIsOutOfBoundsOfAncestorsOverflow($el, getParent($ancestor))
+    }
+
     // target el is out of bounds
     if (
       // target el is to the right of the ancestor's visible area
-      (elProps.fromElWindow.left > (ancestorProps.width + ancestorProps.fromElWindow.left)) ||
+      (elProps.fromElWindow.left >= (ancestorProps.width + ancestorProps.fromElWindow.left)) ||
 
       // target el is to the left of the ancestor's visible area
-      ((elProps.fromElWindow.left + elProps.width) < ancestorProps.fromElWindow.left) ||
+      ((elProps.fromElWindow.left + elProps.width) <= ancestorProps.fromElWindow.left) ||
 
       // target el is under the ancestor's visible area
-      (elProps.fromElWindow.top > (ancestorProps.height + ancestorProps.fromElWindow.top)) ||
+      (elProps.fromElWindow.top >= (ancestorProps.height + ancestorProps.fromElWindow.top)) ||
 
       // target el is above the ancestor's visible area
-      ((elProps.fromElWindow.top + elProps.height) < ancestorProps.fromElWindow.top)
+      ((elProps.fromElWindow.top + elProps.height) <= ancestorProps.fromElWindow.top)
     ) {
       return true
     }
@@ -555,5 +558,11 @@ export const getReasonIsHidden = function ($el, options = { checkOpacity: true }
 /* eslint-enable no-cond-assign */
 
 export default {
-  isVisible, isHidden, isStrictlyHidden, isHiddenByAncestors, getReasonIsHidden, isW3CFocusable, isW3CRendered,
+  isVisible,
+  isHidden,
+  isStrictlyHidden,
+  isHiddenByAncestors,
+  getReasonIsHidden,
+  isW3CFocusable,
+  isW3CRendered,
 }