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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| let savedSelection = null; | ||
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| function saveSelection() { | ||
| if (window.getSelection) { | ||
| const sel = window.getSelection(); | ||
| if (sel.rangeCount > 0) { | ||
| savedSelection = sel.getRangeAt(0).cloneRange(); | ||
| } | ||
| } | ||
| } | ||
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| function restoreSelection() { | ||
| const selection = window.getSelection(); | ||
| if (savedSelection) { | ||
| selection.removeAllRanges(); | ||
| selection.addRange(savedSelection); | ||
| } | ||
| } | ||
|
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| function wrapSelectedTextWithStrong() { | ||
| restoreSelection(); | ||
| const selection = window.getSelection(); | ||
| if (selection.rangeCount) { | ||
| const range = selection.getRangeAt(0); | ||
| const strongTag = document.createElement('strong'); | ||
| range.surroundContents(strongTag); | ||
| selection.removeAllRanges(); | ||
| selection.addRange(range); | ||
| } | ||
| } | ||
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| document.addEventListener('DOMContentLoaded', function () { | ||
| const boldButton = document.getElementById('bold-text-button'); | ||
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| if (boldButton) { | ||
| boldButton.addEventListener('mousedown', function(event) { | ||
| event.preventDefault(); | ||
| saveSelection(); | ||
| }); | ||
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| boldButton.addEventListener('click', function(event) { | ||
| toggleStrong(); | ||
| }); | ||
| } | ||
| }); | ||
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| function toggleStrong() { | ||
| const selection = window.getSelection(); | ||
| if (!selection.rangeCount) return; | ||
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| let range = selection.getRangeAt(0); | ||
| let container = range.commonAncestorContainer; | ||
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| if (container.nodeType === 3) { | ||
| container = container.parentNode; | ||
| } | ||
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| if (container.tagName === 'STRONG') { | ||
| const newRange = document.createRange(); | ||
| newRange.selectNode(container); | ||
| selection.removeAllRanges(); | ||
| selection.addRange(newRange); | ||
|
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| const parent = container.parentNode; | ||
| while (container.firstChild) { | ||
| parent.insertBefore(container.firstChild, container); | ||
| } | ||
| parent.removeChild(container); | ||
| } else { | ||
| const strongTag = document.createElement('strong'); | ||
| range.surroundContents(strongTag); | ||
| } | ||
| } |