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"use strict";
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
Object.defineProperty(exports, "__esModule", { value: true });
const vscode = require("vscode");
const util_1 = require("./util");
let balanceOutStack = [];
let lastOut = false;
let lastBalancedSelections = [];
function balanceOut() {
balance(true);
}
exports.balanceOut = balanceOut;
function balanceIn() {
balance(false);
}
exports.balanceIn = balanceIn;
function balance(out) {
if (!util_1.validate(false) || !vscode.window.activeTextEditor) {
return;
}
const editor = vscode.window.activeTextEditor;
let rootNode = util_1.parseDocument(editor.document);
if (!rootNode) {
return;
}
let getRangeFunction = out ? getRangeToBalanceOut : getRangeToBalanceIn;
let newSelections = [];
editor.selections.forEach(selection => {
let range = getRangeFunction(editor.document, selection, rootNode);
newSelections.push(range);
});
if (areSameSelections(newSelections, editor.selections)) {
return;
}
if (areSameSelections(lastBalancedSelections, editor.selections)) {
if (out) {
if (!balanceOutStack.length) {
balanceOutStack.push(editor.selections);
}
balanceOutStack.push(newSelections);
}
else {
if (lastOut) {
balanceOutStack.pop();
}
newSelections = balanceOutStack.pop() || newSelections;
}
}
else {
balanceOutStack = out ? [editor.selections, newSelections] : [];
}
lastOut = out;
lastBalancedSelections = editor.selections = newSelections;
}
function getRangeToBalanceOut(document, selection, rootNode) {
let nodeToBalance = util_1.getHtmlNode(document, rootNode, selection.start);
if (!nodeToBalance) {
return selection;
}
if (!nodeToBalance.close) {
return new vscode.Selection(nodeToBalance.start, nodeToBalance.end);
}
let innerSelection = new vscode.Selection(nodeToBalance.open.end, nodeToBalance.close.start);
let outerSelection = new vscode.Selection(nodeToBalance.start, nodeToBalance.end);
if (innerSelection.contains(selection) && !innerSelection.isEqual(selection)) {
return innerSelection;
}
if (outerSelection.contains(selection) && !outerSelection.isEqual(selection)) {
return outerSelection;
}
return selection;
}
function getRangeToBalanceIn(document, selection, rootNode) {
let nodeToBalance = util_1.getHtmlNode(document, rootNode, selection.start, true);
if (!nodeToBalance) {
return selection;
}
if (selection.start.isEqual(nodeToBalance.start)
&& selection.end.isEqual(nodeToBalance.end)
&& nodeToBalance.close) {
return new vscode.Selection(nodeToBalance.open.end, nodeToBalance.close.start);
}
if (!nodeToBalance.firstChild) {
return selection;
}
if (selection.start.isEqual(nodeToBalance.firstChild.start)
&& selection.end.isEqual(nodeToBalance.firstChild.end)
&& nodeToBalance.firstChild.close) {
return new vscode.Selection(nodeToBalance.firstChild.open.end, nodeToBalance.firstChild.close.start);
}
return new vscode.Selection(nodeToBalance.firstChild.start, nodeToBalance.firstChild.end);
}
function areSameSelections(a, b) {
if (a.length !== b.length) {
return false;
}
for (let i = 0; i < a.length; i++) {
if (!a[i].isEqual(b[i])) {
return false;
}
}
return true;
}
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