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authorJames Maa <jmaa@berkeley.edu>2024-06-16 18:39:44 -0700
committerGitHub <noreply@github.com>2024-06-17 01:39:44 +0000
commit1d2a91523604cce7dd608408da65bea5645fc7d4 (patch)
tree7c2b915dc29fffc707a5376002682256bce2c6de /ext/js/dom/dom-text-scanner.js
parent0283b298af2d04c7bc013fad7db5966d651f0142 (diff)
Fix DOMTextScanner entering initial div on backwards seeks (#1071)
* Fix dom-text-scanner entering initial div on reverse seeks * Add new case * Add launch.json * Cleanup launch.json
Diffstat (limited to 'ext/js/dom/dom-text-scanner.js')
-rw-r--r--ext/js/dom/dom-text-scanner.js7
1 files changed, 7 insertions, 0 deletions
diff --git a/ext/js/dom/dom-text-scanner.js b/ext/js/dom/dom-text-scanner.js
index eb56baf9..5325b894 100644
--- a/ext/js/dom/dom-text-scanner.js
+++ b/ext/js/dom/dom-text-scanner.js
@@ -37,6 +37,8 @@ export class DOMTextScanner {
if (resetOffset) { node = ruby; }
/** @type {Node} */
+ this._initialNode = node;
+ /** @type {Node} */
this._node = node;
/** @type {number} */
this._offset = offset;
@@ -129,11 +131,16 @@ export class DOMTextScanner {
}
} else if (nodeType === ELEMENT_NODE) {
lastNode = node;
+ const initialNodeAtBeginningOfNodeGoingBackwards = node === this._initialNode && this._offset === 0 && !forward;
+ const initialNodeAtEndOfNodeGoingForwards = node === this._initialNode && this._offset === node.childNodes.length && forward;
this._offset = 0;
({enterable, newlines} = DOMTextScanner.getElementSeekInfo(/** @type {Element} */ (node)));
if (newlines > this._newlines && generateLayoutContent) {
this._newlines = newlines;
}
+ if (initialNodeAtBeginningOfNodeGoingBackwards || initialNodeAtEndOfNodeGoingForwards) {
+ enterable = false;
+ }
}
/** @type {Node[]} */