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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,4 @@ | ||
| body { | ||
| font-size: 1rem; | ||
| padding: 10px 12px 1rem 1.2rem; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| import { | ||
| DecorationOptions, | ||
| DecorationRangeBehavior, | ||
| Disposable, | ||
| Range, | ||
| Selection, | ||
| TextDocument, | ||
| TextEditor, | ||
| TextEditorSelectionChangeEvent, | ||
| ThemeColor, | ||
| window, | ||
| } from 'vscode'; | ||
| import { cog, isIngore } from './config'; | ||
| import { RULES } from './rules'; | ||
|
|
||
| const annotationDecoration = window.createTextEditorDecorationType({ | ||
| after: { | ||
| margin: '0 0 0 1.5em', | ||
| textDecoration: 'none', | ||
| }, | ||
| rangeBehavior: DecorationRangeBehavior.ClosedOpen, | ||
| }); | ||
|
|
||
| interface LineSelection { | ||
| anchor: number; | ||
| active: number; | ||
| } | ||
|
|
||
| export class LineAnnotation implements Disposable { | ||
| protected _disposable?: Disposable; | ||
| private _editor?: TextEditor; | ||
| private _enabled = false; | ||
|
|
||
| constructor() { | ||
| this._disposable = Disposable.from( | ||
| window.onDidChangeActiveTextEditor(this.onActiveTextEditor, this), | ||
| window.onDidChangeTextEditorSelection(this.onTextEditorSelectionChanged, this), | ||
| ); | ||
| } | ||
|
|
||
| private onActiveTextEditor(e: TextEditor) { | ||
| this._enabled = cog.languages.includes(e.document.languageId) && !isIngore(e.document.uri); | ||
| } | ||
|
|
||
| private onTextEditorSelectionChanged(e: TextEditorSelectionChangeEvent) { | ||
| if (!this._enabled) return; | ||
|
|
||
| if (!this.isTextEditor(e.textEditor)) return; | ||
|
|
||
| const selections = this.toLineSelections(e.selections); | ||
| if (selections.length === 0 || !selections.every(s => s.active === s.anchor)) { | ||
| this.clear(e.textEditor); | ||
| return; | ||
| } | ||
|
|
||
| this.refresh(e.textEditor, selections[0]); | ||
| } | ||
|
|
||
| private async refresh(editor: TextEditor | undefined, selection: LineSelection) { | ||
| if (editor.document == null || (editor == null && this._editor == null)) return; | ||
|
|
||
| if (this._editor !== editor) { | ||
| this.clear(this._editor); | ||
| this._editor = editor; | ||
| } | ||
|
|
||
| const l = selection.active; | ||
| const message = this.genMessage(editor.document, l); | ||
| if (message == null) { | ||
| this.clear(this._editor); | ||
| return; | ||
| } | ||
|
|
||
| const decoration: DecorationOptions = { | ||
| renderOptions: { | ||
| after: { | ||
| backgroundColor: new ThemeColor('extension.cssrem.trailingLineBackgroundColor'), | ||
| color: new ThemeColor('extension.cssrem.trailingLineForegroundColor'), | ||
| contentText: message, | ||
| fontWeight: 'normal', | ||
| fontStyle: 'normal', | ||
| textDecoration: 'none', | ||
| }, | ||
| }, | ||
| range: editor.document.validateRange(new Range(l, Number.MAX_SAFE_INTEGER, l, Number.MAX_SAFE_INTEGER)), | ||
| }; | ||
|
|
||
| editor.setDecorations(annotationDecoration, [decoration]); | ||
| } | ||
|
|
||
| private genMessage(doc: TextDocument, lineNumber: number): string | null { | ||
| const text = doc.lineAt(lineNumber).text.trim(); | ||
| if (text.length <= 0) return null; | ||
| const values = text.match(/([.0-9]+(px|rem|rpx))/g); | ||
| if (values == null) return null; | ||
|
|
||
| const results = values | ||
| .map(str => ({ text: str, rule: RULES.find(w => w.hover && w.hover.test(str)) })) | ||
| .filter(item => item.rule != null) | ||
| .map(item => item.rule.hoverFn(item.text)); | ||
|
|
||
| if (results.length <= 0) return null; | ||
| if (results.length === 1) return results[0].to; | ||
| return results.map(res => `${res.to}->${res.from}`).join(', '); | ||
| } | ||
|
|
||
| private clear(editor: TextEditor | undefined) { | ||
| if (this._editor !== editor && this._editor != null) { | ||
| this.clearAnnotations(this._editor); | ||
| } | ||
| this.clearAnnotations(editor); | ||
| } | ||
|
|
||
| private clearAnnotations(editor: TextEditor | undefined) { | ||
| if (editor === undefined || (editor as any)._disposed === true) return; | ||
|
|
||
| editor.setDecorations(annotationDecoration, []); | ||
| } | ||
|
|
||
| private isTextEditor(editor: TextEditor): boolean { | ||
| const scheme = editor.document.uri.scheme; | ||
| return scheme !== 'output' && scheme !== 'debug'; | ||
| } | ||
|
|
||
| dispose() { | ||
| this.clearAnnotations(this._editor); | ||
| this._disposable.dispose(); | ||
| } | ||
|
|
||
| toLineSelections(selections: readonly Selection[] | undefined): LineSelection[] { | ||
| return selections?.map(s => ({ active: s.active.line, anchor: s.anchor.line })); | ||
| } | ||
| } |
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