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htmlCompletion.js
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htmlCompletion.js
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"use strict";
const vscode_languageserver_types_1 = require("vscode-languageserver-types");
const htmlScanner_1 = require("../parser/htmlScanner");
const aureliaTagProvider_1 = require("../parser/aureliaTagProvider");
function doComplete(document, position, htmlDocument, quotes) {
let quote = '"';
if (quotes === 'single') {
quote = '\'';
}
let tagProvider = aureliaTagProvider_1.getAureliaTagProvider();
let result = {
isIncomplete: false,
items: [],
};
let offset = document.offsetAt(position);
let node = htmlDocument.findNodeBefore(offset);
let text = document.getText();
let scanner = htmlScanner_1.createScanner(text, node.start);
let currentTag;
let currentAttributeName;
let token = scanner.scan();
function getReplaceRange(replaceStart, replaceEnd = offset) {
if (replaceStart > offset) {
replaceStart = offset;
}
return {
end: document.positionAt(replaceEnd),
start: document.positionAt(replaceStart),
};
}
function collectOpenTagSuggestions(afterOpenBracket, tagNameEnd) {
let range = getReplaceRange(afterOpenBracket, tagNameEnd);
tagProvider.collectTags((tag, label) => {
result.items.push({
documentation: label,
kind: vscode_languageserver_types_1.CompletionItemKind.Property,
label: tag,
});
});
return result;
}
function collectTagSuggestions(tagStart, tagEnd) {
collectOpenTagSuggestions(tagStart, tagEnd);
return result;
}
function collectAttributeNameSuggestions(nameStart, nameEnd = offset) {
let range = getReplaceRange(nameStart, nameEnd);
let value = isFollowedBy(text, nameEnd, htmlScanner_1.ScannerState.AfterAttributeName, htmlScanner_1.TokenType.DelimiterAssign) ? '' : '=' + quote + '$1' + quote;
tagProvider.collectAttributes(currentTag, (attribute, type) => {
let codeSnippet = attribute;
if (type !== 'v' && value.length) {
codeSnippet = codeSnippet + value;
}
result.items.push({
textEdit: vscode_languageserver_types_1.TextEdit.replace(range, codeSnippet),
kind: type === 'handler' ? vscode_languageserver_types_1.CompletionItemKind.Function : vscode_languageserver_types_1.CompletionItemKind.Value,
label: attribute,
insertTextFormat: vscode_languageserver_types_1.InsertTextFormat.Snippet
});
});
return result;
}
function collectAttributeValueSuggestions(valueStart, valueEnd) {
let range;
let addQuotes;
if (offset > valueStart && offset <= valueEnd && text[valueStart] === quote) {
// inside attribute
if (valueEnd > offset && text[valueEnd - 1] === quote) {
valueEnd--;
}
let wsBefore = getWordStart(text, offset, valueStart + 1);
let wsAfter = getWordEnd(text, offset, valueEnd);
range = getReplaceRange(wsBefore, wsAfter);
addQuotes = false;
}
else {
range = getReplaceRange(valueStart, valueEnd);
addQuotes = true;
}
tagProvider.collectValues(currentTag, currentAttributeName, (value) => {
let insertText = addQuotes ? quote + value + quote : value;
result.items.push({
filterText: insertText,
kind: vscode_languageserver_types_1.CompletionItemKind.Unit,
label: value,
insertText,
});
});
return result;
}
function scanNextForEndPos(nextToken) {
if (offset === scanner.getTokenEnd()) {
token = scanner.scan();
if (token === nextToken && scanner.getTokenOffset() === offset) {
return scanner.getTokenEnd();
}
}
return offset;
}
while (token !== htmlScanner_1.TokenType.EOS && scanner.getTokenOffset() <= offset) {
// tslint:disable-next-line:switch-default
switch (token) {
case htmlScanner_1.TokenType.StartTagOpen:
if (scanner.getTokenEnd() === offset) {
let endPos = scanNextForEndPos(htmlScanner_1.TokenType.StartTag);
return collectTagSuggestions(offset, endPos);
}
break;
case htmlScanner_1.TokenType.StartTag:
if (scanner.getTokenOffset() <= offset && offset <= scanner.getTokenEnd()) {
return collectOpenTagSuggestions(scanner.getTokenOffset(), scanner.getTokenEnd());
}
currentTag = scanner.getTokenText();
break;
case htmlScanner_1.TokenType.AttributeName:
if (scanner.getTokenOffset() <= offset && offset <= scanner.getTokenEnd()) {
return collectAttributeNameSuggestions(scanner.getTokenOffset(), scanner.getTokenEnd());
}
currentAttributeName = scanner.getTokenText();
break;
case htmlScanner_1.TokenType.DelimiterAssign:
if (scanner.getTokenEnd() === offset) {
return collectAttributeValueSuggestions(scanner.getTokenEnd());
}
break;
case htmlScanner_1.TokenType.AttributeValue:
if (scanner.getTokenOffset() <= offset && offset <= scanner.getTokenEnd()) {
return collectAttributeValueSuggestions(scanner.getTokenOffset(), scanner.getTokenEnd());
}
break;
case htmlScanner_1.TokenType.Whitespace:
if (offset <= scanner.getTokenEnd()) {
// tslint:disable-next-line:switch-default
switch (scanner.getScannerState()) {
case htmlScanner_1.ScannerState.AfterOpeningStartTag:
let startPos = scanner.getTokenOffset();
let endTagPos = scanNextForEndPos(htmlScanner_1.TokenType.StartTag);
return collectTagSuggestions(startPos, endTagPos);
case htmlScanner_1.ScannerState.WithinTag:
case htmlScanner_1.ScannerState.AfterAttributeName:
return collectAttributeNameSuggestions(scanner.getTokenEnd());
case htmlScanner_1.ScannerState.BeforeAttributeValue:
return collectAttributeValueSuggestions(scanner.getTokenEnd());
}
}
break;
}
token = scanner.scan();
}
return result;
}
exports.doComplete = doComplete;
function isWhiteSpace(s) {
return /^\s*$/.test(s);
}
function isFollowedBy(s, offset, intialState, expectedToken) {
let scanner = htmlScanner_1.createScanner(s, offset, intialState);
let token = scanner.scan();
while (token === htmlScanner_1.TokenType.Whitespace) {
token = scanner.scan();
}
return token === expectedToken;
}
function getWordStart(s, offset, limit) {
while (offset > limit && !isWhiteSpace(s[offset - 1])) {
offset--;
}
return offset;
}
function getWordEnd(s, offset, limit) {
while (offset < limit && !isWhiteSpace(s[offset])) {
offset++;
}
return offset;
}
//# sourceMappingURL=htmlCompletion.js.map