Send selection data and line count

src/vs/workbench/contrib/membrane/browser/membraneEditorMetrics.contribution.ts

@@ -52,6 +52,8 @@ export class MembraneEditorMetricsContribution extends Disposable implements IWo
 		this._currentEditorDisposables.add(activeControl.onDidLayoutChange(sendMetrics));
 		this._currentEditorDisposables.add(activeControl.onDidChangeHiddenAreas(sendMetrics));
 		this._currentEditorDisposables.add(activeControl.onDidChangeConfiguration(sendMetrics));
+		this._currentEditorDisposables.add(activeControl.onDidChangeCursorSelection(sendMetrics));
+		this._currentEditorDisposables.add(activeControl.onDidChangeModelContent(sendMetrics));
 	}
 
 	private _gatherMetrics(editor: ICodeEditor) {
@@ -67,6 +69,7 @@ export class MembraneEditorMetricsContribution extends Disposable implements IWo
 		const lineCount = model.getLineCount();
 		const startLine = Math.max(1, firstVisibleLine - 20);
 		const endLine = Math.min(lineCount, lastVisibleLine + 20);
+		const selection = editor.getSelection();
 
 		const isLineVisible = (line: number): boolean => {
 			return visibleRanges.some(range =>
@@ -85,6 +88,58 @@ export class MembraneEditorMetricsContribution extends Disposable implements IWo
 			}
 		}
 
+		const hasSelection = selection && (
+			selection.selectionStartLineNumber !== selection.positionLineNumber ||
+			selection.selectionStartColumn !== selection.positionColumn
+		);
+
+		let selectionData = undefined;
+		if (hasSelection) {
+			const startLineNum = Math.min(selection.selectionStartLineNumber, selection.positionLineNumber);
+			const endLineNum = Math.max(selection.selectionStartLineNumber, selection.positionLineNumber);
+
+			let minLeft = Infinity;
+			let maxRight = 0;
+			for (let line = startLineNum; line <= endLineNum; line++) {
+				let lineStartCol: number;
+				let lineEndCol: number;
+
+				if (line === selection.selectionStartLineNumber && line === selection.positionLineNumber) {
+					lineStartCol = Math.min(selection.selectionStartColumn, selection.positionColumn);
+					lineEndCol = Math.max(selection.selectionStartColumn, selection.positionColumn);
+				} else if (line === startLineNum) {
+					const startCol = line === selection.selectionStartLineNumber ? selection.selectionStartColumn : selection.positionColumn;
+					lineStartCol = startCol;
+					lineEndCol = model.getLineMaxColumn(line);
+				} else if (line === endLineNum) {
+					const endCol = line === selection.positionLineNumber ? selection.positionColumn : selection.selectionStartColumn;
+					lineStartCol = 1;
+					lineEndCol = endCol;
+				} else {
+					lineStartCol = 1;
+					lineEndCol = model.getLineMaxColumn(line);
+				}
+
+				const leftOffset = editor.getOffsetForColumn(line, lineStartCol);
+				const rightOffset = editor.getOffsetForColumn(line, lineEndCol);
+				if (leftOffset !== -1) {
+					minLeft = Math.min(minLeft, leftOffset);
+				}
+				if (rightOffset !== -1) {
+					maxRight = Math.max(maxRight, rightOffset);
+				}
+			}
+
+			selectionData = {
+				selectionStartLineNumber: selection.selectionStartLineNumber,
+				selectionStartColumn: selection.selectionStartColumn,
+				positionLineNumber: selection.positionLineNumber,
+				positionColumn: selection.positionColumn,
+				visualLeft: minLeft !== Infinity ? minLeft : undefined,
+				visualRight: maxRight > 0 ? maxRight : undefined,
+			};
+		}
+
 		return {
 			uri: model.uri.toString(),
 			scrollTop: editor.getScrollTop(),
@@ -94,7 +149,9 @@ export class MembraneEditorMetricsContribution extends Disposable implements IWo
 			lastVisibleLine,
 			contentLeft: layoutInfo.contentLeft,
 			contentWidth: layoutInfo.contentWidth,
+			lineCount,
 			linePositions,
+			...(selectionData && { selection: selectionData }),
 		};
 	}
 }