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| 1 | +import * as monaco from 'monaco-editor'; |
| 2 | + |
| 3 | +function trimTrailingEolSelection( |
| 4 | + m: monaco.editor.ITextModel, |
| 5 | + sel: monaco.Selection, |
| 6 | +): monaco.Selection { |
| 7 | + if (!sel.isEmpty() && sel.endColumn === 1 && sel.endLineNumber > sel.startLineNumber) { |
| 8 | + const prevLine = sel.endLineNumber - 1; |
| 9 | + const endCol = m.getLineMaxColumn(prevLine); // after last char |
| 10 | + return new monaco.Selection(sel.startLineNumber, sel.startColumn, prevLine, endCol); |
| 11 | + } |
| 12 | + return sel; |
| 13 | +} |
| 14 | + |
| 15 | +function rangeFromOffsets(m: monaco.editor.ITextModel, startOffset: number, endOffset: number): monaco.Range { |
| 16 | + const s = m.getPositionAt(startOffset); |
| 17 | + const e = m.getPositionAt(endOffset); |
| 18 | + return new monaco.Range(s.lineNumber, s.column, e.lineNumber, e.column); |
| 19 | +} |
| 20 | + |
| 21 | +export function toggleWrapSmart( |
| 22 | + ed: monaco.editor.IStandaloneCodeEditor, |
| 23 | + left: string, |
| 24 | + right: string = left, |
| 25 | +) { |
| 26 | + let m = ed.getModel(); |
| 27 | + if (!m) return; |
| 28 | + |
| 29 | + const selections = ed.getSelections() || []; |
| 30 | + if (!selections.length) return; |
| 31 | + |
| 32 | + const leftLen = left.length; |
| 33 | + const rightLen = right.length; |
| 34 | + |
| 35 | + const indexed = selections.map((s, idx) => ({ s, idx })); |
| 36 | + |
| 37 | + indexed.sort((a, b) => { |
| 38 | + const ma = ed.getModel(); |
| 39 | + if (!ma) return 0; |
| 40 | + const ao = ma.getOffsetAt(a.s.getStartPosition()); |
| 41 | + const bo = ma.getOffsetAt(b.s.getStartPosition()); |
| 42 | + if (ao !== bo) return bo - ao; |
| 43 | + const ae = ma.getOffsetAt(a.s.getEndPosition()); |
| 44 | + const be = ma.getOffsetAt(b.s.getEndPosition()); |
| 45 | + return be - ae; |
| 46 | + }); |
| 47 | + |
| 48 | + const nextSelections: Array<monaco.Selection | null> = new Array(selections.length).fill(null); |
| 49 | + |
| 50 | + const getTextByOffsets = (startOffset: number, endOffset: number) => { |
| 51 | + const mm = ed.getModel(); |
| 52 | + if (!mm) return ''; |
| 53 | + return mm.getValueInRange(rangeFromOffsets(mm, startOffset, endOffset)); |
| 54 | + }; |
| 55 | + |
| 56 | + ed.pushUndoStop(); |
| 57 | + |
| 58 | + for (const item of indexed) { |
| 59 | + m = ed.getModel(); |
| 60 | + if (!m) break; |
| 61 | + |
| 62 | + let sel = item.s; |
| 63 | + sel = trimTrailingEolSelection(m, sel); |
| 64 | + |
| 65 | + const startPos = sel.getStartPosition(); |
| 66 | + const endPos = sel.getEndPosition(); |
| 67 | + const startOffset = m.getOffsetAt(startPos); |
| 68 | + const endOffset = m.getOffsetAt(endPos); |
| 69 | + |
| 70 | + const isEmpty = sel.isEmpty(); |
| 71 | + const modelLen = m.getValueLength(); |
| 72 | + |
| 73 | + const hasAdjacentWrap = () => { |
| 74 | + if (startOffset < leftLen) return false; |
| 75 | + if (endOffset + rightLen > modelLen) return false; |
| 76 | + |
| 77 | + const l = getTextByOffsets(startOffset - leftLen, startOffset); |
| 78 | + const r = getTextByOffsets(endOffset, endOffset + rightLen); |
| 79 | + return l === left && r === right; |
| 80 | + }; |
| 81 | + |
| 82 | + const removeAdjacentWrap = () => { |
| 83 | + const leftRange = rangeFromOffsets(m!, startOffset - leftLen, startOffset); |
| 84 | + const rightRange = rangeFromOffsets(m!, endOffset, endOffset + rightLen); |
| 85 | + |
| 86 | + ed.executeEdits('md-toggle-wrap', [ |
| 87 | + { range: rightRange, text: '', forceMoveMarkers: true }, |
| 88 | + { range: leftRange, text: '', forceMoveMarkers: true }, |
| 89 | + ]); |
| 90 | + |
| 91 | + const mm = ed.getModel()!; |
| 92 | + const ns = startOffset - leftLen; |
| 93 | + const ne = endOffset - leftLen; |
| 94 | + |
| 95 | + const s = mm.getPositionAt(ns); |
| 96 | + const e = mm.getPositionAt(ne); |
| 97 | + nextSelections[item.idx] = new monaco.Selection(s.lineNumber, s.column, e.lineNumber, e.column); |
| 98 | + }; |
| 99 | + |
| 100 | + if (isEmpty) { |
| 101 | + if (startOffset >= leftLen && startOffset + rightLen <= modelLen) { |
| 102 | + const l = getTextByOffsets(startOffset - leftLen, startOffset); |
| 103 | + const r = getTextByOffsets(startOffset, startOffset + rightLen); |
| 104 | + if (l === left && r === right) { |
| 105 | + const leftRange = rangeFromOffsets(m, startOffset - leftLen, startOffset); |
| 106 | + const rightRange = rangeFromOffsets(m, startOffset, startOffset + rightLen); |
| 107 | + |
| 108 | + ed.executeEdits('md-toggle-wrap', [ |
| 109 | + { range: rightRange, text: '', forceMoveMarkers: true }, |
| 110 | + { range: leftRange, text: '', forceMoveMarkers: true }, |
| 111 | + ]); |
| 112 | + |
| 113 | + const mm = ed.getModel()!; |
| 114 | + const p = mm.getPositionAt(startOffset - leftLen); |
| 115 | + nextSelections[item.idx] = new monaco.Selection(p.lineNumber, p.column, p.lineNumber, p.column); |
| 116 | + continue; |
| 117 | + } |
| 118 | + } |
| 119 | + |
| 120 | + const insertRange = rangeFromOffsets(m, startOffset, startOffset); |
| 121 | + ed.executeEdits('md-toggle-wrap', [ |
| 122 | + { range: insertRange, text: `${left}${right}`, forceMoveMarkers: true }, |
| 123 | + ]); |
| 124 | + |
| 125 | + const mm = ed.getModel()!; |
| 126 | + const p = mm.getPositionAt(startOffset + leftLen); |
| 127 | + nextSelections[item.idx] = new monaco.Selection(p.lineNumber, p.column, p.lineNumber, p.column); |
| 128 | + continue; |
| 129 | + } |
| 130 | + |
| 131 | + const selectedText = m.getValueInRange(sel); |
| 132 | + |
| 133 | + const isExplicitWrapped = |
| 134 | + selectedText.length >= leftLen + rightLen && |
| 135 | + selectedText.startsWith(left) && |
| 136 | + selectedText.endsWith(right); |
| 137 | + |
| 138 | + if (isExplicitWrapped) { |
| 139 | + const unwrapped = selectedText.slice(leftLen, selectedText.length - rightLen); |
| 140 | + |
| 141 | + ed.executeEdits('md-toggle-wrap', [ |
| 142 | + { range: sel, text: unwrapped, forceMoveMarkers: true }, |
| 143 | + ]); |
| 144 | + |
| 145 | + const mm = ed.getModel()!; |
| 146 | + const s = mm.getPositionAt(startOffset); |
| 147 | + const e = mm.getPositionAt(startOffset + unwrapped.length); |
| 148 | + nextSelections[item.idx] = new monaco.Selection(s.lineNumber, s.column, e.lineNumber, e.column); |
| 149 | + continue; |
| 150 | + } |
| 151 | + |
| 152 | + if (hasAdjacentWrap()) { |
| 153 | + removeAdjacentWrap(); |
| 154 | + continue; |
| 155 | + } |
| 156 | + |
| 157 | + ed.executeEdits('md-toggle-wrap', [ |
| 158 | + { range: sel, text: `${left}${selectedText}${right}`, forceMoveMarkers: true }, |
| 159 | + ]); |
| 160 | + |
| 161 | + const mm = ed.getModel()!; |
| 162 | + const ns = startOffset + leftLen; |
| 163 | + const ne = endOffset + leftLen; |
| 164 | + const s = mm.getPositionAt(ns); |
| 165 | + const e = mm.getPositionAt(ne); |
| 166 | + nextSelections[item.idx] = new monaco.Selection(s.lineNumber, s.column, e.lineNumber, e.column); |
| 167 | + } |
| 168 | + |
| 169 | + ed.pushUndoStop(); |
| 170 | + |
| 171 | + const finalSelections = nextSelections.map((s, i) => s ?? selections[i]); |
| 172 | + ed.setSelections(finalSelections); |
| 173 | +} |
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