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/* eslint-disable consistent-return, class-methods-use-this */
// Zen Mode (full screen) textarea
//
/*= provides zen_mode:enter */
/*= provides zen_mode:leave */
import $ from 'jquery';
import 'vendor/jquery.scrollTo';
import Dropzone from 'dropzone';
import Mousetrap from 'mousetrap';
import 'mousetrap/plugins/pause/mousetrap-pause';
Dropzone.autoDiscover = false;
//
// ### Events
//
// `zen_mode:enter`
//
// Fired when the "Edit in fullscreen" link is clicked.
//
// **Synchronicity** Sync
// **Bubbles** Yes
// **Cancelable** No
// **Target** a.js-zen-enter
//
// `zen_mode:leave`
//
// Fired when the "Leave Fullscreen" link is clicked.
//
// **Synchronicity** Sync
// **Bubbles** Yes
// **Cancelable** No
// **Target** a.js-zen-leave
//
export default class ZenMode {
constructor() {
this.active_backdrop = null;
this.active_textarea = null;
$(document).on('click', '.js-zen-enter', e => {
e.preventDefault();
return $(e.currentTarget).trigger('zen_mode:enter');
});
$(document).on('click', '.js-zen-leave', e => {
e.preventDefault();
return $(e.currentTarget).trigger('zen_mode:leave');
});
$(document).on('zen_mode:enter', e => {
this.enter(
$(e.target)
.closest('.md-area')
.find('.zen-backdrop'),
);
});
$(document).on('zen_mode:leave', () => {
this.exit();
});
$(document).on('keydown', e => {
// Esc
if (e.keyCode === 27) {
e.preventDefault();
return $(document).trigger('zen_mode:leave');
}
});
}
enter(backdrop) {
Mousetrap.pause();
this.active_backdrop = $(backdrop);
this.active_backdrop.addClass('fullscreen');
this.active_textarea = this.active_backdrop.find('textarea');
// Prevent a user-resized textarea from persisting to fullscreen
this.active_textarea.removeAttr('style');
this.active_textarea.focus();
}
exit() {
if (this.active_textarea) {
Mousetrap.unpause();
this.active_textarea.closest('.zen-backdrop').removeClass('fullscreen');
this.scrollTo(this.active_textarea);
this.active_textarea = null;
this.active_backdrop = null;
const $dropzone = $('.div-dropzone');
if ($dropzone && !$dropzone.hasClass('js-invalid-dropzone')) {
Dropzone.forElement('.div-dropzone').enable();
}
}
}
scrollTo(zenArea) {
return $.scrollTo(zenArea, 0, {
offset: -150,
});
}
}
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