@aplus-frontend/antdv
Version:
Vue basic component library maintained based on ant-design-vue
116 lines (115 loc) • 3.36 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.filterOption = filterOption;
exports.getBeforeSelectionText = getBeforeSelectionText;
exports.getLastMeasureIndex = getLastMeasureIndex;
exports.replaceWithMeasure = replaceWithMeasure;
exports.setInputSelection = setInputSelection;
exports.validateSearch = validateSearch;
/**
* Cut input selection into 2 part and return text before selection start
*/
function getBeforeSelectionText(input) {
const {
selectionStart
} = input;
return input.value.slice(0, selectionStart);
}
/**
* Find the last match prefix index
*/
function getLastMeasureIndex(text) {
let prefix = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
const prefixList = Array.isArray(prefix) ? prefix : [prefix];
return prefixList.reduce((lastMatch, prefixStr) => {
const lastIndex = text.lastIndexOf(prefixStr);
if (lastIndex > lastMatch.location) {
return {
location: lastIndex,
prefix: prefixStr
};
}
return lastMatch;
}, {
location: -1,
prefix: ''
});
}
function lower(char) {
return (char || '').toLowerCase();
}
function reduceText(text, targetText, split) {
const firstChar = text[0];
if (!firstChar || firstChar === split) {
return text;
}
// Reuse rest text as it can
let restText = text;
const targetTextLen = targetText.length;
for (let i = 0; i < targetTextLen; i += 1) {
if (lower(restText[i]) !== lower(targetText[i])) {
restText = restText.slice(i);
break;
} else if (i === targetTextLen - 1) {
restText = restText.slice(targetTextLen);
}
}
return restText;
}
/**
* Paint targetText into current text:
* text: little@litest
* targetText: light
* => little @light test
*/
function replaceWithMeasure(text, measureConfig) {
const {
measureLocation,
prefix,
targetText,
selectionStart,
split
} = measureConfig;
// Before text will append one space if have other text
let beforeMeasureText = text.slice(0, measureLocation);
if (beforeMeasureText[beforeMeasureText.length - split.length] === split) {
beforeMeasureText = beforeMeasureText.slice(0, beforeMeasureText.length - split.length);
}
if (beforeMeasureText) {
beforeMeasureText = `${beforeMeasureText}${split}`;
}
// Cut duplicate string with current targetText
let restText = reduceText(text.slice(selectionStart), targetText.slice(selectionStart - measureLocation - prefix.length), split);
if (restText.slice(0, split.length) === split) {
restText = restText.slice(split.length);
}
const connectedStartText = `${beforeMeasureText}${prefix}${targetText}${split}`;
return {
text: `${connectedStartText}${restText}`,
selectionLocation: connectedStartText.length
};
}
function setInputSelection(input, location) {
input.setSelectionRange(location, location);
/**
* Reset caret into view.
* Since this function always called by user control, it's safe to focus element.
*/
input.blur();
input.focus();
}
function validateSearch(text, props) {
const {
split
} = props;
return !split || text.indexOf(split) === -1;
}
function filterOption(input, _ref) {
let {
value = ''
} = _ref;
const lowerCase = input.toLowerCase();
return value.toLowerCase().indexOf(lowerCase) !== -1;
}