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authortoasted-nutbread <toasted-nutbread@users.noreply.github.com>2020-10-20 20:54:26 -0400
committerGitHub <noreply@github.com>2020-10-20 20:54:26 -0400
commit6f980d8f2be1714a29ceac1e402198f68b377880 (patch)
treeeea02fa59eabc24f9af5f9974badb9b30cc39fa6 /ext/fg/js/text-source-range.js
parent9bda0a9eb43e127fdaa0066fba7e3e73c9f74812 (diff)
Text source range refactor (#949)
* Rename functions for better clarity * Remove unused properties * Add getNodesInRange function * Improve ignore nodes check * Use private fields
Diffstat (limited to 'ext/fg/js/text-source-range.js')
-rw-r--r--ext/fg/js/text-source-range.js67
1 files changed, 38 insertions, 29 deletions
diff --git a/ext/fg/js/text-source-range.js b/ext/fg/js/text-source-range.js
index 86a57ae1..eba7a7cc 100644
--- a/ext/fg/js/text-source-range.js
+++ b/ext/fg/js/text-source-range.js
@@ -17,70 +17,75 @@
/* global
* DOMTextScanner
+ * DocumentUtil
*/
class TextSourceRange {
constructor(range, content, imposterContainer, imposterSourceElement) {
- this.range = range;
- this.rangeStartOffset = range.startOffset;
- this.content = content;
- this.imposterContainer = imposterContainer;
- this.imposterSourceElement = imposterSourceElement;
+ this._range = range;
+ this._rangeStartOffset = range.startOffset;
+ this._content = content;
+ this._imposterContainer = imposterContainer;
+ this._imposterSourceElement = imposterSourceElement;
}
- get startOffset() {
- return this.range.startOffset;
+ get range() {
+ return this._range;
}
- get endOffset() {
- return this.range.endOffset;
+ get rangeStartOffset() {
+ return this._rangeStartOffset;
+ }
+
+ get imposterSourceElement() {
+ return this._imposterSourceElement;
}
clone() {
- return new TextSourceRange(this.range.cloneRange(), this.content, this.imposterContainer, this.imposterSourceElement);
+ return new TextSourceRange(this._range.cloneRange(), this._content, this._imposterContainer, this._imposterSourceElement);
}
cleanup() {
- if (this.imposterContainer !== null && this.imposterContainer.parentNode !== null) {
- this.imposterContainer.parentNode.removeChild(this.imposterContainer);
+ if (this._imposterContainer !== null && this._imposterContainer.parentNode !== null) {
+ this._imposterContainer.parentNode.removeChild(this._imposterContainer);
}
}
text() {
- return this.content;
+ return this._content;
}
setEndOffset(length, layoutAwareScan, fromEnd=false) {
const state = (
fromEnd ?
- new DOMTextScanner(this.range.endContainer, this.range.endOffset, !layoutAwareScan, layoutAwareScan).seek(length) :
- new DOMTextScanner(this.range.startContainer, this.range.startOffset, !layoutAwareScan, layoutAwareScan).seek(length)
+ new DOMTextScanner(this._range.endContainer, this._range.endOffset, !layoutAwareScan, layoutAwareScan).seek(length) :
+ new DOMTextScanner(this._range.startContainer, this._range.startOffset, !layoutAwareScan, layoutAwareScan).seek(length)
);
- this.range.setEnd(state.node, state.offset);
- this.content = (fromEnd ? this.content + state.content : state.content);
+ this._range.setEnd(state.node, state.offset);
+ this._content = (fromEnd ? this._content + state.content : state.content);
return length - state.remainder;
}
setStartOffset(length, layoutAwareScan) {
- const state = new DOMTextScanner(this.range.startContainer, this.range.startOffset, !layoutAwareScan, layoutAwareScan).seek(-length);
- this.range.setStart(state.node, state.offset);
- this.rangeStartOffset = this.range.startOffset;
- this.content = state.content + this.content;
+ const state = new DOMTextScanner(this._range.startContainer, this._range.startOffset, !layoutAwareScan, layoutAwareScan).seek(-length);
+ this._range.setStart(state.node, state.offset);
+ this._rangeStartOffset = this._range.startOffset;
+ this._content = state.content + this._content;
return length - state.remainder;
}
getRect() {
- return this.range.getBoundingClientRect();
+ return this._range.getBoundingClientRect();
}
getWritingMode() {
- return TextSourceRange.getElementWritingMode(TextSourceRange.getParentElement(this.range.startContainer));
+ return TextSourceRange.getElementWritingMode(TextSourceRange.getParentElement(this._range.startContainer));
}
select() {
const selection = window.getSelection();
selection.removeAllRanges();
- selection.addRange(this.range);
+ selection.addRange(this._range);
}
deselect() {
@@ -88,7 +93,7 @@ class TextSourceRange {
selection.removeAllRanges();
}
- equals(other) {
+ hasSameStart(other) {
if (!(
typeof other === 'object' &&
other !== null &&
@@ -96,14 +101,14 @@ class TextSourceRange {
)) {
return false;
}
- if (this.imposterSourceElement !== null) {
+ if (this._imposterSourceElement !== null) {
return (
- this.imposterSourceElement === other.imposterSourceElement &&
- this.rangeStartOffset === other.rangeStartOffset
+ this._imposterSourceElement === other.imposterSourceElement &&
+ this._rangeStartOffset === other.rangeStartOffset
);
} else {
try {
- return this.range.compareBoundaryPoints(Range.START_TO_START, other.range) === 0;
+ return this._range.compareBoundaryPoints(Range.START_TO_START, other.range) === 0;
} catch (e) {
if (e.name === 'WrongDocumentError') {
// This can happen with shadow DOMs if the ranges are in different documents.
@@ -114,6 +119,10 @@ class TextSourceRange {
}
}
+ getNodesInRange() {
+ return DocumentUtil.getNodesInRange(this._range);
+ }
+
static getParentElement(node) {
while (node !== null && node.nodeType !== Node.ELEMENT_NODE) {
node = node.parentNode;