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-rw-r--r--ext/js/dom/dom-text-scanner.js54
1 files changed, 36 insertions, 18 deletions
diff --git a/ext/js/dom/dom-text-scanner.js b/ext/js/dom/dom-text-scanner.js
index ccd1c90b..42e0acc9 100644
--- a/ext/js/dom/dom-text-scanner.js
+++ b/ext/js/dom/dom-text-scanner.js
@@ -36,15 +36,25 @@ export class DOMTextScanner {
const resetOffset = (ruby !== null);
if (resetOffset) { node = ruby; }
+ /** @type {Node} */
this._node = node;
+ /** @type {number} */
this._offset = offset;
+ /** @type {string} */
this._content = '';
+ /** @type {number} */
this._remainder = 0;
+ /** @type {boolean} */
this._resetOffset = resetOffset;
+ /** @type {number} */
this._newlines = 0;
+ /** @type {boolean} */
this._lineHasWhitespace = false;
+ /** @type {boolean} */
this._lineHasContent = false;
+ /** @type {boolean} */
this._forcePreserveWhitespace = forcePreserveWhitespace;
+ /** @type {boolean} */
this._generateLayoutContent = generateLayoutContent;
}
@@ -99,8 +109,8 @@ export class DOMTextScanner {
const ELEMENT_NODE = Node.ELEMENT_NODE;
const generateLayoutContent = this._generateLayoutContent;
- let node = this._node;
- let lastNode = node;
+ let node = /** @type {?Node} */ (this._node);
+ let lastNode = /** @type {Node} */ (node);
let resetOffset = this._resetOffset;
let newlines = 0;
while (node !== null) {
@@ -111,8 +121,8 @@ export class DOMTextScanner {
lastNode = node;
if (!(
forward ?
- this._seekTextNodeForward(node, resetOffset) :
- this._seekTextNodeBackward(node, resetOffset)
+ this._seekTextNodeForward(/** @type {Text} */ (node), resetOffset) :
+ this._seekTextNodeBackward(/** @type {Text} */ (node), resetOffset)
)) {
// Length reached
break;
@@ -120,18 +130,19 @@ export class DOMTextScanner {
} else if (nodeType === ELEMENT_NODE) {
lastNode = node;
this._offset = 0;
- ({enterable, newlines} = DOMTextScanner.getElementSeekInfo(node));
+ ({enterable, newlines} = DOMTextScanner.getElementSeekInfo(/** @type {Element} */ (node)));
if (newlines > this._newlines && generateLayoutContent) {
this._newlines = newlines;
}
}
+ /** @type {Node[]} */
const exitedNodes = [];
node = DOMTextScanner.getNextNode(node, forward, enterable, exitedNodes);
for (const exitedNode of exitedNodes) {
if (exitedNode.nodeType !== ELEMENT_NODE) { continue; }
- ({newlines} = DOMTextScanner.getElementSeekInfo(exitedNode));
+ ({newlines} = DOMTextScanner.getElementSeekInfo(/** @type {Element} */ (exitedNode)));
if (newlines > this._newlines && generateLayoutContent) {
this._newlines = newlines;
}
@@ -155,7 +166,7 @@ export class DOMTextScanner {
* @returns {boolean} `true` if scanning should continue, or `false` if the scan length has been reached.
*/
_seekTextNodeForward(textNode, resetOffset) {
- const nodeValue = textNode.nodeValue;
+ const nodeValue = /** @type {string} */ (textNode.nodeValue);
const nodeValueLength = nodeValue.length;
const {preserveNewlines, preserveWhitespace} = this._getWhitespaceSettings(textNode);
@@ -241,7 +252,7 @@ export class DOMTextScanner {
* @returns {boolean} `true` if scanning should continue, or `false` if the scan length has been reached.
*/
_seekTextNodeBackward(textNode, resetOffset) {
- const nodeValue = textNode.nodeValue;
+ const nodeValue = /** @type {string} */ (textNode.nodeValue);
const nodeValueLength = nodeValue.length;
const {preserveNewlines, preserveWhitespace} = this._getWhitespaceSettings(textNode);
@@ -350,6 +361,7 @@ export class DOMTextScanner {
* @returns {?Node} The next node in the document, or `null` if there is no next node.
*/
static getNextNode(node, forward, visitChildren, exitedNodes) {
+ /** @type {?Node} */
let next = visitChildren ? (forward ? node.firstChild : node.lastChild) : null;
if (next === null) {
while (true) {
@@ -369,14 +381,17 @@ export class DOMTextScanner {
/**
* Gets the parent element of a given Node.
- * @param {Node} node The node to check.
- * @returns {?Node} The parent element if one exists, otherwise `null`.
+ * @param {?Node} node The node to check.
+ * @returns {?Element} The parent element if one exists, otherwise `null`.
*/
static getParentElement(node) {
- while (node !== null && node.nodeType !== Node.ELEMENT_NODE) {
+ while (node !== null) {
+ if (node.nodeType === Node.ELEMENT_NODE) {
+ return /** @type {Element} */ (node);
+ }
node = node.parentNode;
}
- return node;
+ return null;
}
/**
@@ -387,11 +402,12 @@ export class DOMTextScanner {
* @returns {?HTMLElement} A <ruby> node if the input node is contained in one, otherwise `null`.
*/
static getParentRubyElement(node) {
- node = DOMTextScanner.getParentElement(node);
- if (node !== null && node.nodeName.toUpperCase() === 'RT') {
- node = node.parentNode;
- if (node !== null && node.nodeName.toUpperCase() === 'RUBY') {
- return node;
+ /** @type {?Node} */
+ let node2 = DOMTextScanner.getParentElement(node);
+ if (node2 !== null && node2.nodeName.toUpperCase() === 'RT') {
+ node2 = node2.parentNode;
+ if (node2 !== null && node2.nodeName.toUpperCase() === 'RUBY') {
+ return /** @type {HTMLElement} */ (node2);
}
}
return null;
@@ -505,7 +521,9 @@ export class DOMTextScanner {
return !(
style.userSelect === 'none' ||
style.webkitUserSelect === 'none' ||
+ // @ts-expect-error - vendor prefix
style.MozUserSelect === 'none' ||
+ // @ts-expect-error - vendor prefix
style.msUserSelect === 'none'
);
}
@@ -513,7 +531,7 @@ export class DOMTextScanner {
/**
* Checks whether a CSS color is transparent or not.
* @param {string} cssColor A CSS color string, expected to be encoded in rgb(a) form.
- * @returns {false} `true` if the color is transparent, otherwise `false`.
+ * @returns {boolean} `true` if the color is transparent, otherwise `false`.
*/
static isCSSColorTransparent(cssColor) {
return (