gitlab-org--gitlab-foss/app/assets/javascripts/project_find_file.js

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/* eslint-disable func-names, consistent-return, no-return-assign */
import $ from 'jquery';
import fuzzaldrinPlus from 'fuzzaldrin-plus';
import { sanitize } from 'dompurify';
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import axios from '~/lib/utils/axios_utils';
import { joinPaths, escapeFileUrl } from '~/lib/utils/url_utility';
import { deprecatedCreateFlash as flash } from '~/flash';
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import { __ } from '~/locale';
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// highlight text(awefwbwgtc -> <b>a</b>wefw<b>b</b>wgt<b>c</b> )
const highlighter = function(element, text, matches) {
let j = 0;
let len = 0;
let lastIndex = 0;
let matchedChars = [];
let matchIndex = matches[j];
let unmatched = text.substring(lastIndex, matchIndex);
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for (j = 0, len = matches.length; j < len; j += 1) {
matchIndex = matches[j];
unmatched = text.substring(lastIndex, matchIndex);
if (unmatched) {
if (matchedChars.length) {
element.append(matchedChars.join('').bold());
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}
matchedChars = [];
element.append(document.createTextNode(unmatched));
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}
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matchedChars.push(text[matchIndex]);
lastIndex = matchIndex + 1;
}
if (matchedChars.length) {
element.append(matchedChars.join('').bold());
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}
return element.append(document.createTextNode(text.substring(lastIndex)));
};
export default class ProjectFindFile {
constructor(element1, options) {
this.element = element1;
this.options = options;
this.goToBlob = this.goToBlob.bind(this);
this.goToTree = this.goToTree.bind(this);
this.selectRowDown = this.selectRowDown.bind(this);
this.selectRowUp = this.selectRowUp.bind(this);
this.filePaths = {};
this.inputElement = this.element.find('.file-finder-input');
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// init event
this.initEvent();
// focus text input box
this.inputElement.focus();
// load file list
this.load(this.options.url);
}
initEvent() {
this.inputElement.off('keyup');
this.inputElement.on('keyup', event => {
const target = $(event.target);
const value = target.val();
const ref = target.data('oldValue');
const oldValue = ref != null ? ref : '';
if (value !== oldValue) {
target.data('oldValue', value);
this.findFile();
return this.element
.find('tr.tree-item')
.eq(0)
.addClass('selected')
.focus();
}
});
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}
findFile() {
const searchText = sanitize(this.inputElement.val());
const result =
searchText.length > 0 ? fuzzaldrinPlus.filter(this.filePaths, searchText) : this.filePaths;
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return this.renderList(result, searchText);
// find file
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}
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// files paths load
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load(url) {
axios
.get(url)
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.then(({ data }) => {
this.element.find('.loading').hide();
this.filePaths = data;
this.findFile();
this.element
.find('.files-slider tr.tree-item')
.eq(0)
.addClass('selected')
.focus();
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})
.catch(() => flash(__('An error occurred while loading filenames')));
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}
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// render result
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renderList(filePaths, searchText) {
let i = 0;
let len = 0;
let matches = [];
const results = [];
this.element.find('.tree-table > tbody').empty();
for (i = 0, len = filePaths.length; i < len; i += 1) {
const filePath = filePaths[i];
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if (i === 20) {
break;
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}
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if (searchText) {
matches = fuzzaldrinPlus.match(filePath, searchText);
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}
const blobItemUrl = joinPaths(this.options.blobUrlTemplate, escapeFileUrl(filePath));
const html = ProjectFindFile.makeHtml(filePath, matches, blobItemUrl);
results.push(this.element.find('.tree-table > tbody').append(html));
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}
this.element.find('.empty-state').toggleClass('hidden', Boolean(results.length));
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return results;
}
// make tbody row html
static makeHtml(filePath, matches, blobItemUrl) {
const $tr = $(
"<tr class='tree-item'><td class='tree-item-file-name link-container'><a><i class='fa fa-file-text-o fa-fw'></i><span class='str-truncated'></span></a></td></tr>",
);
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if (matches) {
$tr
.find('a')
.replaceWith(highlighter($tr.find('a'), filePath, matches).attr('href', blobItemUrl));
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} else {
$tr.find('a').attr('href', blobItemUrl);
$tr.find('.str-truncated').text(filePath);
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}
return $tr;
}
selectRow(type) {
const rows = this.element.find('.files-slider tr.tree-item');
let selectedRow = this.element.find('.files-slider tr.tree-item.selected');
let next = selectedRow.prev();
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if (rows && rows.length > 0) {
if (selectedRow && selectedRow.length > 0) {
if (type === 'UP') {
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next = selectedRow.prev();
} else if (type === 'DOWN') {
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next = selectedRow.next();
}
if (next.length > 0) {
selectedRow.removeClass('selected');
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selectedRow = next;
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}
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} else {
selectedRow = rows.eq(0);
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}
return selectedRow.addClass('selected').focus();
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}
}
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selectRowUp() {
return this.selectRow('UP');
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}
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selectRowDown() {
return this.selectRow('DOWN');
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}
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goToTree() {
return (window.location.href = this.options.treeUrl);
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}
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goToBlob() {
const $link = this.element.find('.tree-item.selected .tree-item-file-name a');
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if ($link.length) {
$link.get(0).click();
}
}
}