74 lines
2.8 KiB
TypeScript
74 lines
2.8 KiB
TypeScript
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import * as vscode from 'vscode';
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import { validate } from './util';
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export function fetchEditPoint(direction: string): void {
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if (!validate() || !vscode.window.activeTextEditor) {
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return;
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}
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const editor = vscode.window.activeTextEditor;
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let newSelections: vscode.Selection[] = [];
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editor.selections.forEach(selection => {
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let updatedSelection = direction === 'next' ? nextEditPoint(selection, editor) : prevEditPoint(selection, editor);
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newSelections.push(updatedSelection);
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});
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editor.selections = newSelections;
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editor.revealRange(editor.selections[editor.selections.length - 1]);
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}
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function nextEditPoint(selection: vscode.Selection, editor: vscode.TextEditor): vscode.Selection {
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for (let lineNum = selection.anchor.line; lineNum < editor.document.lineCount; lineNum++) {
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let updatedSelection = findEditPoint(lineNum, editor, selection.anchor, 'next');
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if (updatedSelection) {
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return updatedSelection;
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}
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}
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return selection;
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}
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function prevEditPoint(selection: vscode.Selection, editor: vscode.TextEditor): vscode.Selection {
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for (let lineNum = selection.anchor.line; lineNum >= 0; lineNum--) {
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let updatedSelection = findEditPoint(lineNum, editor, selection.anchor, 'prev');
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if (updatedSelection) {
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return updatedSelection;
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}
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}
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return selection;
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}
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function findEditPoint(lineNum: number, editor: vscode.TextEditor, position: vscode.Position, direction: string): vscode.Selection | undefined {
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let line = editor.document.lineAt(lineNum);
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let lineContent = line.text;
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if (lineNum !== position.line && line.isEmptyOrWhitespace) {
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return new vscode.Selection(lineNum, lineContent.length, lineNum, lineContent.length);
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}
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if (lineNum === position.line && direction === 'prev') {
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lineContent = lineContent.substr(0, position.character);
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}
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let emptyAttrIndex = direction === 'next' ? lineContent.indexOf('""', lineNum === position.line ? position.character : 0) : lineContent.lastIndexOf('""');
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let emptyTagIndex = direction === 'next' ? lineContent.indexOf('><', lineNum === position.line ? position.character : 0) : lineContent.lastIndexOf('><');
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let winner = -1;
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if (emptyAttrIndex > -1 && emptyTagIndex > -1) {
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winner = direction === 'next' ? Math.min(emptyAttrIndex, emptyTagIndex) : Math.max(emptyAttrIndex, emptyTagIndex);
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} else if (emptyAttrIndex > -1) {
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winner = emptyAttrIndex;
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} else {
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winner = emptyTagIndex;
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}
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if (winner > -1) {
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return new vscode.Selection(lineNum, winner + 1, lineNum, winner + 1);
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}
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return;
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}
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