100 lines
3.0 KiB
JavaScript
100 lines
3.0 KiB
JavaScript
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/**
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* Cut input selection into 2 part and return text before selection start
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*/
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export function getBeforeSelectionText(input) {
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var selectionStart = input.selectionStart;
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return input.value.slice(0, selectionStart);
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}
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/**
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* Find the last match prefix index
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*/
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export function getLastMeasureIndex(text, prefix) {
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return prefix.reduce(function (lastMatch, prefixStr) {
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var lastIndex = text.lastIndexOf(prefixStr);
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if (lastIndex > lastMatch.location) {
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return {
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location: lastIndex,
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prefix: prefixStr
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};
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}
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return lastMatch;
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}, {
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location: -1,
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prefix: ''
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});
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}
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function lower(char) {
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return (char || '').toLowerCase();
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}
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function reduceText(text, targetText, split) {
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var firstChar = text[0];
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if (!firstChar || firstChar === split) {
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return text;
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}
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// Reuse rest text as it can
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var restText = text;
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var targetTextLen = targetText.length;
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for (var i = 0; i < targetTextLen; i += 1) {
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if (lower(restText[i]) !== lower(targetText[i])) {
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restText = restText.slice(i);
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break;
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} else if (i === targetTextLen - 1) {
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restText = restText.slice(targetTextLen);
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}
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}
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return restText;
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}
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/**
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* Paint targetText into current text:
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* text: little@litest
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* targetText: light
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* => little @light test
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*/
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export function replaceWithMeasure(text, measureConfig) {
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var measureLocation = measureConfig.measureLocation,
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prefix = measureConfig.prefix,
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targetText = measureConfig.targetText,
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selectionStart = measureConfig.selectionStart,
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split = measureConfig.split;
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// Before text will append one space if have other text
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var beforeMeasureText = text.slice(0, measureLocation);
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if (beforeMeasureText[beforeMeasureText.length - split.length] === split) {
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beforeMeasureText = beforeMeasureText.slice(0, beforeMeasureText.length - split.length);
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}
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if (beforeMeasureText) {
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beforeMeasureText = "".concat(beforeMeasureText).concat(split);
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}
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// Cut duplicate string with current targetText
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var restText = reduceText(text.slice(selectionStart), targetText.slice(selectionStart - measureLocation - prefix.length), split);
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if (restText.slice(0, split.length) === split) {
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restText = restText.slice(split.length);
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}
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var connectedStartText = "".concat(beforeMeasureText).concat(prefix).concat(targetText).concat(split);
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return {
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text: "".concat(connectedStartText).concat(restText),
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selectionLocation: connectedStartText.length
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};
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}
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export function setInputSelection(input, location) {
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input.setSelectionRange(location, location);
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/**
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* Reset caret into view.
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* Since this function always called by user control, it's safe to focus element.
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*/
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input.blur();
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input.focus();
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}
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export function validateSearch(text, split) {
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return !split || text.indexOf(split) === -1;
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}
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export function filterOption(input, _ref) {
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var _ref$value = _ref.value,
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value = _ref$value === void 0 ? '' : _ref$value;
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var lowerCase = input.toLowerCase();
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return value.toLowerCase().indexOf(lowerCase) !== -1;
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}
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