Commit 4a24f44c authored by Kushal Pandya's avatar Kushal Pandya

Merge branch '61928-remove-throttle-from-dirty-submit' into 'master'

Make throttling in the dirty_submit form check smarter

Closes #61928

See merge request gitlab-org/gitlab-ce!28377
parents ff61f92c 2a4a732d
......@@ -21,10 +21,15 @@ class DirtySubmitForm {
}
registerListeners() {
const throttledUpdateDirtyInput = _.throttle(
event => this.updateDirtyInput(event),
DirtySubmitForm.THROTTLE_DURATION,
const getThrottledHandlerForInput = _.memoize(() =>
_.throttle(event => this.updateDirtyInput(event), DirtySubmitForm.THROTTLE_DURATION),
);
const throttledUpdateDirtyInput = event => {
const throttledHandler = getThrottledHandlerForInput(event.target.name);
throttledHandler(event);
};
this.form.addEventListener('input', throttledUpdateDirtyInput);
this.form.addEventListener('change', throttledUpdateDirtyInput);
$(this.form).on('change.select2', throttledUpdateDirtyInput);
......
---
title: Fix issue that causes "Save changes" button in project settings pages to be
enabled/disabled incorrectly when changes are made to the form
merge_request: 28377
author:
type: fixed
import _ from 'underscore';
import DirtySubmitForm from '~/dirty_submit/dirty_submit_form';
import { getInputValue, setInputValue, createForm } from './helper';
......@@ -13,7 +14,16 @@ function expectToToggleDisableOnDirtyUpdate(submit, input) {
}
describe('DirtySubmitForm', () => {
const originalThrottleDuration = DirtySubmitForm.THROTTLE_DURATION;
describe('submit button tests', () => {
beforeEach(() => {
DirtySubmitForm.THROTTLE_DURATION = 0;
});
afterEach(() => {
DirtySubmitForm.THROTTLE_DURATION = originalThrottleDuration;
});
it('disables submit until there are changes', done => {
const { form, input, submit } = createForm();
......@@ -55,4 +65,49 @@ describe('DirtySubmitForm', () => {
.then(done)
.catch(done.fail);
});
});
describe('throttling tests', () => {
beforeEach(() => {
jasmine.clock().install();
DirtySubmitForm.THROTTLE_DURATION = 100;
});
afterEach(() => {
jasmine.clock().uninstall();
DirtySubmitForm.THROTTLE_DURATION = originalThrottleDuration;
});
it('throttles updates when rapid changes are made to a single form element', () => {
const { form, input } = createForm();
const updateDirtyInputSpy = spyOn(new DirtySubmitForm(form), 'updateDirtyInput');
_.range(10).forEach(i => {
setInputValue(input, `change ${i}`, false);
});
jasmine.clock().tick(101);
expect(updateDirtyInputSpy).toHaveBeenCalledTimes(2);
});
it('does not throttle updates when rapid changes are made to different form elements', () => {
const form = document.createElement('form');
const range = _.range(10);
range.forEach(i => {
form.innerHTML += `<input type="text" name="input-${i}" class="js-input-${i}"/>`;
});
const updateDirtyInputSpy = spyOn(new DirtySubmitForm(form), 'updateDirtyInput');
range.forEach(i => {
const input = form.querySelector(`.js-input-${i}`);
setInputValue(input, `change`, false);
});
jasmine.clock().tick(101);
expect(updateDirtyInputSpy).toHaveBeenCalledTimes(range.length);
});
});
});
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