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Properly save selection state when the selection root is the editor #82

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merged 1 commit into from
Jul 31, 2022
Merged

Properly save selection state when the selection root is the editor #82

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9 changes: 9 additions & 0 deletions codejar.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,15 @@ export function CodeJar(editor: HTMLElement, highlight: (e: HTMLElement, pos?: P
let {anchorNode, anchorOffset, focusNode, focusOffset} = s
if (!anchorNode || !focusNode) throw 'error1'

// If the anchor and focus are the editor element, return either a full
// highlight or a start/end cursor position depending on the selection
if (anchorNode === editor && focusNode === editor) {
pos.start = (anchorOffset > 0 && editor.textContent) ? editor.textContent.length : 0
pos.end = (focusOffset > 0 && editor.textContent) ? editor.textContent.length : 0
pos.dir = (focusOffset >= anchorOffset) ? '->' : '<-'
return pos
}

// Selection anchor and focus are expected to be text nodes,
// so normalize them.
if (anchorNode.nodeType === Node.ELEMENT_NODE) {
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