/* eslint-disable func-names, prefer-arrow-callback, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, one-var, one-var-declaration-per-line, consistent-return, no-param-reassign, max-len */
import { __ } from './locale';
import axios from './lib/utils/axios_utils';
import createFlash from './flash';
import FilesCommentButton from './files_comment_button';
import imageDiffHelper from './image_diff/helpers/index';
import syntaxHighlight from './syntax_highlight';
const WRAPPER = '
';
const LOADING_HTML = '';
const ERROR_HTML = ' Could not load diff
';
const COLLAPSED_HTML = '';
export default class SingleFileDiff {
constructor(file) {
this.file = file;
this.toggleDiff = this.toggleDiff.bind(this);
this.content = $('.diff-content', this.file);
this.$toggleIcon = $('.diff-toggle-caret', this.file);
this.diffForPath = this.content.find('[data-diff-for-path]').data('diff-for-path');
this.isOpen = !this.diffForPath;
if (this.diffForPath) {
this.collapsedContent = this.content;
this.loadingContent = $(WRAPPER).addClass('loading').html(LOADING_HTML).hide();
this.content = null;
this.collapsedContent.after(this.loadingContent);
this.$toggleIcon.addClass('fa-caret-right');
} else {
this.collapsedContent = $(WRAPPER).html(COLLAPSED_HTML).hide();
this.content.after(this.collapsedContent);
this.$toggleIcon.addClass('fa-caret-down');
}
$('.js-file-title, .click-to-expand', this.file).on('click', (function (e) {
this.toggleDiff($(e.target));
}).bind(this));
}
toggleDiff($target, cb) {
if (!$target.hasClass('js-file-title') && !$target.hasClass('click-to-expand') && !$target.hasClass('diff-toggle-caret')) return;
this.isOpen = !this.isOpen;
if (!this.isOpen && !this.hasError) {
this.content.hide();
this.$toggleIcon.addClass('fa-caret-right').removeClass('fa-caret-down');
this.collapsedContent.show();
if (typeof gl.diffNotesCompileComponents !== 'undefined') {
gl.diffNotesCompileComponents();
}
} else if (this.content) {
this.collapsedContent.hide();
this.content.show();
this.$toggleIcon.addClass('fa-caret-down').removeClass('fa-caret-right');
if (typeof gl.diffNotesCompileComponents !== 'undefined') {
gl.diffNotesCompileComponents();
}
} else {
this.$toggleIcon.addClass('fa-caret-down').removeClass('fa-caret-right');
return this.getContentHTML(cb);
}
}
getContentHTML(cb) {
this.collapsedContent.hide();
this.loadingContent.show();
axios.get(this.diffForPath)
.then(({ data }) => {
this.loadingContent.hide();
if (data.html) {
this.content = $(data.html);
syntaxHighlight(this.content);
} else {
this.hasError = true;
this.content = $(ERROR_HTML);
}
this.collapsedContent.after(this.content);
if (typeof gl.diffNotesCompileComponents !== 'undefined') {
gl.diffNotesCompileComponents();
}
const $file = $(this.file);
FilesCommentButton.init($file);
const canCreateNote = $file.closest('.files').is('[data-can-create-note]');
imageDiffHelper.initImageDiff($file[0], canCreateNote);
if (cb) cb();
})
.catch(createFlash(__('An error occurred while retrieving diff')));
}
}