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-rw-r--r--app/assets/javascripts/commons/jquery.js1
-rw-r--r--app/assets/javascripts/groups_select.js172
-rw-r--r--app/assets/javascripts/issuable/auto_width_dropdown_select.js12
-rw-r--r--app/assets/javascripts/issuable_context.js12
-rw-r--r--app/assets/javascripts/issuable_form.js62
-rw-r--r--app/assets/javascripts/main.js30
-rw-r--r--app/assets/javascripts/project_select.js174
-rw-r--r--app/assets/javascripts/project_select_combo_button.js10
-rw-r--r--app/assets/javascripts/users_select.js190
9 files changed, 350 insertions, 313 deletions
diff --git a/app/assets/javascripts/commons/jquery.js b/app/assets/javascripts/commons/jquery.js
index a7ed175f7a4..009153d0703 100644
--- a/app/assets/javascripts/commons/jquery.js
+++ b/app/assets/javascripts/commons/jquery.js
@@ -7,4 +7,3 @@ import 'vendor/jquery.caret';
import 'vendor/jquery.atwho';
import 'vendor/jquery.scrollTo';
import 'jquery.waitforimages';
-import 'select2/select2';
diff --git a/app/assets/javascripts/groups_select.js b/app/assets/javascripts/groups_select.js
index 2049760fe29..bdadbb1bb2a 100644
--- a/app/assets/javascripts/groups_select.js
+++ b/app/assets/javascripts/groups_select.js
@@ -4,93 +4,97 @@ import Api from './api';
import { normalizeHeaders } from './lib/utils/common_utils';
export default function groupsSelect() {
- // Needs to be accessible in rspec
- window.GROUP_SELECT_PER_PAGE = 20;
- $('.ajax-groups-select').each(function setAjaxGroupsSelect2() {
- const $select = $(this);
- const allAvailable = $select.data('allAvailable');
- const skipGroups = $select.data('skipGroups') || [];
- const parentGroupID = $select.data('parentId');
- const groupsPath = parentGroupID
- ? Api.subgroupsPath.replace(':id', parentGroupID)
- : Api.groupsPath;
+ import(/* webpackChunkName: 'select2' */ 'select2/select2')
+ .then(() => {
+ // Needs to be accessible in rspec
+ window.GROUP_SELECT_PER_PAGE = 20;
+ $('.ajax-groups-select').each(function setAjaxGroupsSelect2() {
+ const $select = $(this);
+ const allAvailable = $select.data('allAvailable');
+ const skipGroups = $select.data('skipGroups') || [];
+ const parentGroupID = $select.data('parentId');
+ const groupsPath = parentGroupID
+ ? Api.subgroupsPath.replace(':id', parentGroupID)
+ : Api.groupsPath;
- $select.select2({
- placeholder: 'Search for a group',
- allowClear: $select.hasClass('allowClear'),
- multiple: $select.hasClass('multiselect'),
- minimumInputLength: 0,
- ajax: {
- url: Api.buildUrl(groupsPath),
- dataType: 'json',
- quietMillis: 250,
- transport(params) {
- axios[params.type.toLowerCase()](params.url, {
- params: params.data,
- })
- .then(res => {
- const results = res.data || [];
- const headers = normalizeHeaders(res.headers);
- const currentPage = parseInt(headers['X-PAGE'], 10) || 0;
- const totalPages = parseInt(headers['X-TOTAL-PAGES'], 10) || 0;
- const more = currentPage < totalPages;
+ $select.select2({
+ placeholder: 'Search for a group',
+ allowClear: $select.hasClass('allowClear'),
+ multiple: $select.hasClass('multiselect'),
+ minimumInputLength: 0,
+ ajax: {
+ url: Api.buildUrl(groupsPath),
+ dataType: 'json',
+ quietMillis: 250,
+ transport(params) {
+ axios[params.type.toLowerCase()](params.url, {
+ params: params.data,
+ })
+ .then(res => {
+ const results = res.data || [];
+ const headers = normalizeHeaders(res.headers);
+ const currentPage = parseInt(headers['X-PAGE'], 10) || 0;
+ const totalPages = parseInt(headers['X-TOTAL-PAGES'], 10) || 0;
+ const more = currentPage < totalPages;
- params.success({
- results,
- pagination: {
- more,
- },
- });
- })
- .catch(params.error);
- },
- data(search, page) {
- return {
- search,
- page,
- per_page: window.GROUP_SELECT_PER_PAGE,
- all_available: allAvailable,
- };
- },
- results(data, page) {
- if (data.length) return { results: [] };
+ params.success({
+ results,
+ pagination: {
+ more,
+ },
+ });
+ })
+ .catch(params.error);
+ },
+ data(search, page) {
+ return {
+ search,
+ page,
+ per_page: window.GROUP_SELECT_PER_PAGE,
+ all_available: allAvailable,
+ };
+ },
+ results(data, page) {
+ if (data.length) return { results: [] };
- const groups = data.length ? data : data.results || [];
- const more = data.pagination ? data.pagination.more : false;
- const results = groups.filter(group => skipGroups.indexOf(group.id) === -1);
+ const groups = data.length ? data : data.results || [];
+ const more = data.pagination ? data.pagination.more : false;
+ const results = groups.filter(group => skipGroups.indexOf(group.id) === -1);
- return {
- results,
- page,
- more,
- };
- },
- },
- // eslint-disable-next-line consistent-return
- initSelection(element, callback) {
- const id = $(element).val();
- if (id !== '') {
- return Api.group(id, callback);
- }
- },
- formatResult(object) {
- return `<div class='group-result'> <div class='group-name'>${
- object.full_name
- }</div> <div class='group-path'>${object.full_path}</div> </div>`;
- },
- formatSelection(object) {
- return object.full_name;
- },
- dropdownCssClass: 'ajax-groups-dropdown select2-infinite',
- // we do not want to escape markup since we are displaying html in results
- escapeMarkup(m) {
- return m;
- },
- });
+ return {
+ results,
+ page,
+ more,
+ };
+ },
+ },
+ // eslint-disable-next-line consistent-return
+ initSelection(element, callback) {
+ const id = $(element).val();
+ if (id !== '') {
+ return Api.group(id, callback);
+ }
+ },
+ formatResult(object) {
+ return `<div class='group-result'> <div class='group-name'>${
+ object.full_name
+ }</div> <div class='group-path'>${object.full_path}</div> </div>`;
+ },
+ formatSelection(object) {
+ return object.full_name;
+ },
+ dropdownCssClass: 'ajax-groups-dropdown select2-infinite',
+ // we do not want to escape markup since we are displaying html in results
+ escapeMarkup(m) {
+ return m;
+ },
+ });
- $select.on('select2-loaded', () => {
- const dropdown = document.querySelector('.select2-infinite .select2-results');
- dropdown.style.height = `${Math.floor(dropdown.scrollHeight)}px`;
- });
- });
+ $select.on('select2-loaded', () => {
+ const dropdown = document.querySelector('.select2-infinite .select2-results');
+ dropdown.style.height = `${Math.floor(dropdown.scrollHeight)}px`;
+ });
+ });
+ })
+ .catch(() => {});
}
diff --git a/app/assets/javascripts/issuable/auto_width_dropdown_select.js b/app/assets/javascripts/issuable/auto_width_dropdown_select.js
index 612c524ca1c..e0fb58ef195 100644
--- a/app/assets/javascripts/issuable/auto_width_dropdown_select.js
+++ b/app/assets/javascripts/issuable/auto_width_dropdown_select.js
@@ -11,10 +11,14 @@ class AutoWidthDropdownSelect {
init() {
const { dropdownClass } = this;
- this.$selectElement.select2({
- dropdownCssClass: dropdownClass,
- ...AutoWidthDropdownSelect.selectOptions(this.dropdownClass),
- });
+ import(/* webpackChunkName: 'select2' */ 'select2/select2')
+ .then(() => {
+ this.$selectElement.select2({
+ dropdownCssClass: dropdownClass,
+ ...AutoWidthDropdownSelect.selectOptions(this.dropdownClass),
+ });
+ })
+ .catch(() => {});
return this;
}
diff --git a/app/assets/javascripts/issuable_context.js b/app/assets/javascripts/issuable_context.js
index f3d722409b0..48e7ed1318d 100644
--- a/app/assets/javascripts/issuable_context.js
+++ b/app/assets/javascripts/issuable_context.js
@@ -7,10 +7,14 @@ export default class IssuableContext {
constructor(currentUser) {
this.userSelect = new UsersSelect(currentUser);
- $('select.select2').select2({
- width: 'resolve',
- dropdownAutoWidth: true,
- });
+ import(/* webpackChunkName: 'select2' */ 'select2/select2')
+ .then(() => {
+ $('select.select2').select2({
+ width: 'resolve',
+ dropdownAutoWidth: true,
+ });
+ })
+ .catch(() => {});
$('.issuable-sidebar .inline-update').on('change', 'select', function onClickSelect() {
return $(this).submit();
diff --git a/app/assets/javascripts/issuable_form.js b/app/assets/javascripts/issuable_form.js
index c81a2230310..4d2533d01f1 100644
--- a/app/assets/javascripts/issuable_form.js
+++ b/app/assets/javascripts/issuable_form.js
@@ -120,35 +120,39 @@ export default class IssuableForm {
}
initTargetBranchDropdown() {
- this.$targetBranchSelect.select2({
- ...AutoWidthDropdownSelect.selectOptions('js-target-branch-select'),
- ajax: {
- url: this.$targetBranchSelect.data('endpoint'),
- dataType: 'JSON',
- quietMillis: 250,
- data(search) {
- return {
- search,
- };
- },
- results(data) {
- return {
- // `data` keys are translated so we can't just access them with a string based key
- results: data[Object.keys(data)[0]].map(name => ({
- id: name,
- text: name,
- })),
- };
- },
- },
- initSelection(el, callback) {
- const val = el.val();
-
- callback({
- id: val,
- text: val,
+ import(/* webpackChunkName: 'select2' */ 'select2/select2')
+ .then(() => {
+ this.$targetBranchSelect.select2({
+ ...AutoWidthDropdownSelect.selectOptions('js-target-branch-select'),
+ ajax: {
+ url: this.$targetBranchSelect.data('endpoint'),
+ dataType: 'JSON',
+ quietMillis: 250,
+ data(search) {
+ return {
+ search,
+ };
+ },
+ results(data) {
+ return {
+ // `data` keys are translated so we can't just access them with a string based key
+ results: data[Object.keys(data)[0]].map(name => ({
+ id: name,
+ text: name,
+ })),
+ };
+ },
+ },
+ initSelection(el, callback) {
+ const val = el.val();
+
+ callback({
+ id: val,
+ text: val,
+ });
+ },
});
- },
- });
+ })
+ .catch(() => {});
}
}
diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index 4ba3543f9b2..8e10b3ad912 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -100,18 +100,24 @@ function deferredInitialisation() {
});
// Initialize select2 selects
- $('select.select2').select2({
- width: 'resolve',
- dropdownAutoWidth: true,
- });
-
- // Close select2 on escape
- $('.js-select2').on('select2-close', () => {
- setTimeout(() => {
- $('.select2-container-active').removeClass('select2-container-active');
- $(':focus').blur();
- }, 1);
- });
+ if ($('select.select2').length) {
+ import(/* webpackChunkName: 'select2' */ 'select2/select2')
+ .then(() => {
+ $('select.select2').select2({
+ width: 'resolve',
+ dropdownAutoWidth: true,
+ });
+
+ // Close select2 on escape
+ $('.js-select2').on('select2-close', () => {
+ setTimeout(() => {
+ $('.select2-container-active').removeClass('select2-container-active');
+ $(':focus').blur();
+ }, 1);
+ });
+ })
+ .catch(() => {});
+ }
// Initialize tooltips
$body.tooltip({
diff --git a/app/assets/javascripts/project_select.js b/app/assets/javascripts/project_select.js
index a33835472bb..5ee510eb11d 100644
--- a/app/assets/javascripts/project_select.js
+++ b/app/assets/javascripts/project_select.js
@@ -5,97 +5,101 @@ import Api from './api';
import ProjectSelectComboButton from './project_select_combo_button';
export default function projectSelect() {
- $('.ajax-project-select').each(function(i, select) {
- var placeholder;
- const simpleFilter = $(select).data('simpleFilter') || false;
- this.groupId = $(select).data('groupId');
- this.includeGroups = $(select).data('includeGroups');
- this.allProjects = $(select).data('allProjects') || false;
- this.orderBy = $(select).data('orderBy') || 'id';
- this.withIssuesEnabled = $(select).data('withIssuesEnabled');
- this.withMergeRequestsEnabled = $(select).data('withMergeRequestsEnabled');
- this.withShared =
- $(select).data('withShared') === undefined ? true : $(select).data('withShared');
- this.includeProjectsInSubgroups = $(select).data('includeProjectsInSubgroups') || false;
- this.allowClear = $(select).data('allowClear') || false;
+ import(/* webpackChunkName: 'select2' */ 'select2/select2')
+ .then(() => {
+ $('.ajax-project-select').each(function(i, select) {
+ var placeholder;
+ const simpleFilter = $(select).data('simpleFilter') || false;
+ this.groupId = $(select).data('groupId');
+ this.includeGroups = $(select).data('includeGroups');
+ this.allProjects = $(select).data('allProjects') || false;
+ this.orderBy = $(select).data('orderBy') || 'id';
+ this.withIssuesEnabled = $(select).data('withIssuesEnabled');
+ this.withMergeRequestsEnabled = $(select).data('withMergeRequestsEnabled');
+ this.withShared =
+ $(select).data('withShared') === undefined ? true : $(select).data('withShared');
+ this.includeProjectsInSubgroups = $(select).data('includeProjectsInSubgroups') || false;
+ this.allowClear = $(select).data('allowClear') || false;
- placeholder = 'Search for project';
- if (this.includeGroups) {
- placeholder += ' or group';
- }
+ placeholder = 'Search for project';
+ if (this.includeGroups) {
+ placeholder += ' or group';
+ }
- $(select).select2({
- placeholder: placeholder,
- minimumInputLength: 0,
- query: (function(_this) {
- return function(query) {
- var finalCallback, projectsCallback;
- finalCallback = function(projects) {
- var data;
- data = {
- results: projects,
- };
- return query.callback(data);
- };
- if (_this.includeGroups) {
- projectsCallback = function(projects) {
- var groupsCallback;
- groupsCallback = function(groups) {
+ $(select).select2({
+ placeholder: placeholder,
+ minimumInputLength: 0,
+ query: (function(_this) {
+ return function(query) {
+ var finalCallback, projectsCallback;
+ finalCallback = function(projects) {
var data;
- data = groups.concat(projects);
- return finalCallback(data);
+ data = {
+ results: projects,
+ };
+ return query.callback(data);
};
- return Api.groups(query.term, {}, groupsCallback);
+ if (_this.includeGroups) {
+ projectsCallback = function(projects) {
+ var groupsCallback;
+ groupsCallback = function(groups) {
+ var data;
+ data = groups.concat(projects);
+ return finalCallback(data);
+ };
+ return Api.groups(query.term, {}, groupsCallback);
+ };
+ } else {
+ projectsCallback = finalCallback;
+ }
+ if (_this.groupId) {
+ return Api.groupProjects(
+ _this.groupId,
+ query.term,
+ {
+ with_issues_enabled: _this.withIssuesEnabled,
+ with_merge_requests_enabled: _this.withMergeRequestsEnabled,
+ with_shared: _this.withShared,
+ include_subgroups: _this.includeProjectsInSubgroups,
+ },
+ projectsCallback,
+ );
+ } else {
+ return Api.projects(
+ query.term,
+ {
+ order_by: _this.orderBy,
+ with_issues_enabled: _this.withIssuesEnabled,
+ with_merge_requests_enabled: _this.withMergeRequestsEnabled,
+ membership: !_this.allProjects,
+ },
+ projectsCallback,
+ );
+ }
};
- } else {
- projectsCallback = finalCallback;
- }
- if (_this.groupId) {
- return Api.groupProjects(
- _this.groupId,
- query.term,
- {
- with_issues_enabled: _this.withIssuesEnabled,
- with_merge_requests_enabled: _this.withMergeRequestsEnabled,
- with_shared: _this.withShared,
- include_subgroups: _this.includeProjectsInSubgroups,
- },
- projectsCallback,
- );
- } else {
- return Api.projects(
- query.term,
- {
- order_by: _this.orderBy,
- with_issues_enabled: _this.withIssuesEnabled,
- with_merge_requests_enabled: _this.withMergeRequestsEnabled,
- membership: !_this.allProjects,
- },
- projectsCallback,
- );
- }
- };
- })(this),
- id: function(project) {
- if (simpleFilter) return project.id;
- return JSON.stringify({
- name: project.name,
- url: project.web_url,
- });
- },
- text: function(project) {
- return project.name_with_namespace || project.name;
- },
+ })(this),
+ id: function(project) {
+ if (simpleFilter) return project.id;
+ return JSON.stringify({
+ name: project.name,
+ url: project.web_url,
+ });
+ },
+ text: function(project) {
+ return project.name_with_namespace || project.name;
+ },
- initSelection: function(el, callback) {
- return Api.project(el.val()).then(({ data }) => callback(data));
- },
+ initSelection: function(el, callback) {
+ return Api.project(el.val()).then(({ data }) => callback(data));
+ },
- allowClear: this.allowClear,
+ allowClear: this.allowClear,
- dropdownCssClass: 'ajax-project-dropdown',
- });
- if (simpleFilter) return select;
- return new ProjectSelectComboButton(select);
- });
+ dropdownCssClass: 'ajax-project-dropdown',
+ });
+ if (simpleFilter) return select;
+ return new ProjectSelectComboButton(select);
+ });
+ })
+ .catch(() => {});
}
diff --git a/app/assets/javascripts/project_select_combo_button.js b/app/assets/javascripts/project_select_combo_button.js
index 3dbac3ff942..d3b5f532dc1 100644
--- a/app/assets/javascripts/project_select_combo_button.js
+++ b/app/assets/javascripts/project_select_combo_button.js
@@ -44,9 +44,13 @@ export default class ProjectSelectComboButton {
// eslint-disable-next-line class-methods-use-this
openDropdown(event) {
- $(event.currentTarget)
- .siblings('.project-item-select')
- .select2('open');
+ import(/* webpackChunkName: 'select2' */ 'select2/select2')
+ .then(() => {
+ $(event.currentTarget)
+ .siblings('.project-item-select')
+ .select2('open');
+ })
+ .catch(() => {});
}
selectProject() {
diff --git a/app/assets/javascripts/users_select.js b/app/assets/javascripts/users_select.js
index ce051582299..4017630d6ef 100644
--- a/app/assets/javascripts/users_select.js
+++ b/app/assets/javascripts/users_select.js
@@ -579,101 +579,109 @@ function UsersSelect(currentUser, els, options = {}) {
};
})(this),
);
- $('.ajax-users-select').each(
- (function(_this) {
- return function(i, select) {
- var firstUser, showAnyUser, showEmailUser, showNullUser;
- var options = {};
- options.skipLdap = $(select).hasClass('skip_ldap');
- options.projectId = $(select).data('projectId');
- options.groupId = $(select).data('groupId');
- options.showCurrentUser = $(select).data('currentUser');
- options.authorId = $(select).data('authorId');
- options.skipUsers = $(select).data('skipUsers');
- showNullUser = $(select).data('nullUser');
- showAnyUser = $(select).data('anyUser');
- showEmailUser = $(select).data('emailUser');
- firstUser = $(select).data('firstUser');
- return $(select).select2({
- placeholder: 'Search for a user',
- multiple: $(select).hasClass('multiselect'),
- minimumInputLength: 0,
- query: function(query) {
- return _this.users(query.term, options, function(users) {
- var anyUser, data, emailUser, index, len, name, nullUser, obj, ref;
- data = {
- results: users,
- };
- if (query.term.length === 0) {
- if (firstUser) {
- // Move current user to the front of the list
- ref = data.results;
-
- for (index = 0, len = ref.length; index < len; index += 1) {
- obj = ref[index];
- if (obj.username === firstUser) {
- data.results.splice(index, 1);
- data.results.unshift(obj);
- break;
+ import(/* webpackChunkName: 'select2' */ 'select2/select2')
+ .then(() => {
+ $('.ajax-users-select').each(
+ (function(_this) {
+ return function(i, select) {
+ var firstUser, showAnyUser, showEmailUser, showNullUser;
+ var options = {};
+ options.skipLdap = $(select).hasClass('skip_ldap');
+ options.projectId = $(select).data('projectId');
+ options.groupId = $(select).data('groupId');
+ options.showCurrentUser = $(select).data('currentUser');
+ options.authorId = $(select).data('authorId');
+ options.skipUsers = $(select).data('skipUsers');
+ showNullUser = $(select).data('nullUser');
+ showAnyUser = $(select).data('anyUser');
+ showEmailUser = $(select).data('emailUser');
+ firstUser = $(select).data('firstUser');
+ return $(select).select2({
+ placeholder: 'Search for a user',
+ multiple: $(select).hasClass('multiselect'),
+ minimumInputLength: 0,
+ query: function(query) {
+ return _this.users(query.term, options, function(users) {
+ var anyUser, data, emailUser, index, len, name, nullUser, obj, ref;
+ data = {
+ results: users,
+ };
+ if (query.term.length === 0) {
+ if (firstUser) {
+ // Move current user to the front of the list
+ ref = data.results;
+
+ for (index = 0, len = ref.length; index < len; index += 1) {
+ obj = ref[index];
+ if (obj.username === firstUser) {
+ data.results.splice(index, 1);
+ data.results.unshift(obj);
+ break;
+ }
+ }
+ }
+ if (showNullUser) {
+ nullUser = {
+ name: 'Unassigned',
+ id: 0,
+ };
+ data.results.unshift(nullUser);
+ }
+ if (showAnyUser) {
+ name = showAnyUser;
+ if (name === true) {
+ name = 'Any User';
+ }
+ anyUser = {
+ name: name,
+ id: null,
+ };
+ data.results.unshift(anyUser);
}
}
- }
- if (showNullUser) {
- nullUser = {
- name: 'Unassigned',
- id: 0,
- };
- data.results.unshift(nullUser);
- }
- if (showAnyUser) {
- name = showAnyUser;
- if (name === true) {
- name = 'Any User';
+ if (
+ showEmailUser &&
+ data.results.length === 0 &&
+ query.term.match(/^[^@]+@[^@]+$/)
+ ) {
+ var trimmed = query.term.trim();
+ emailUser = {
+ name: 'Invite "' + trimmed + '" by email',
+ username: trimmed,
+ id: trimmed,
+ invite: true,
+ };
+ data.results.unshift(emailUser);
}
- anyUser = {
- name: name,
- id: null,
- };
- data.results.unshift(anyUser);
- }
- }
- if (showEmailUser && data.results.length === 0 && query.term.match(/^[^@]+@[^@]+$/)) {
- var trimmed = query.term.trim();
- emailUser = {
- name: 'Invite "' + trimmed + '" by email',
- username: trimmed,
- id: trimmed,
- invite: true,
- };
- data.results.unshift(emailUser);
- }
- return query.callback(data);
+ return query.callback(data);
+ });
+ },
+ initSelection: function() {
+ var args;
+ args = 1 <= arguments.length ? [].slice.call(arguments, 0) : [];
+ return _this.initSelection.apply(_this, args);
+ },
+ formatResult: function() {
+ var args;
+ args = 1 <= arguments.length ? [].slice.call(arguments, 0) : [];
+ return _this.formatResult.apply(_this, args);
+ },
+ formatSelection: function() {
+ var args;
+ args = 1 <= arguments.length ? [].slice.call(arguments, 0) : [];
+ return _this.formatSelection.apply(_this, args);
+ },
+ dropdownCssClass: 'ajax-users-dropdown',
+ // we do not want to escape markup since we are displaying html in results
+ escapeMarkup: function(m) {
+ return m;
+ },
});
- },
- initSelection: function() {
- var args;
- args = 1 <= arguments.length ? [].slice.call(arguments, 0) : [];
- return _this.initSelection.apply(_this, args);
- },
- formatResult: function() {
- var args;
- args = 1 <= arguments.length ? [].slice.call(arguments, 0) : [];
- return _this.formatResult.apply(_this, args);
- },
- formatSelection: function() {
- var args;
- args = 1 <= arguments.length ? [].slice.call(arguments, 0) : [];
- return _this.formatSelection.apply(_this, args);
- },
- dropdownCssClass: 'ajax-users-dropdown',
- // we do not want to escape markup since we are displaying html in results
- escapeMarkup: function(m) {
- return m;
- },
- });
- };
- })(this),
- );
+ };
+ })(this),
+ );
+ })
+ .catch(() => {});
}
UsersSelect.prototype.initSelection = function(element, callback) {