/* eslint max-len: 0 */
(win => {

	const rl = win.rl;

	if (!rl) {
		return;
	}

	rl.registerWYSIWYG('CompactComposer', (owner, container, onReady) => {
		const editor = new CompactComposer(container);
		onReady(editor);
	});

	const doc = win.document;

	addEventListener('rl-view-model', e => {
		const vm = e.detail;
		if ('PopupsCompose' === vm.viewModelTemplateID && rl.settings.get('editorWysiwyg') === 'CompactComposer') {
			// add visible binding to the label
			const bodyLabel = vm.querySelector('.tabs label[for="tab-body"]');
			bodyLabel.dataset.bind = 'visible: canMailvelope';
			// re-apply the binding
			const labelNext = bodyLabel.nextElementSibling;
			ko.removeNode(bodyLabel);
			labelNext.parentElement.insertBefore(bodyLabel, labelNext);
			ko.applyBindingAccessorsToNode(bodyLabel, null, vm);

			// Now move the attachments tab to the bottom of the screen
			const area = vm.querySelector('.tabs .attachmentAreaParent');
			vm.querySelector('.tabs input[value="attachments"]').remove();
			vm.querySelector('.tabs label[for="tab-attachments"]').remove();
			area.querySelector('.no-attachments-desc').remove();
			area.classList.add('compact');
			vm.viewModelDom.append(area);
			// Add and re-apply the bindings for the attachment-place
			const place = area.querySelector('.b-attachment-place');
			ko.removeNode(place);
			area.insertBefore(place, area.firstElementChild);
			place.dataset.bind = 'visible: addAttachmentEnabled(), css: {dragAndDropOver: dragAndDropVisible}';
			ko.applyBindingAccessorsToNode(place, null, vm);
			// There is a better way to do this probably,
			// but we need this for drag and drop to work
			e.detail.attachmentsArea = e.detail.bodyArea;
		}
	});

	const
		// TODO: labels translations
		i18n = (str, def) => rl.i18n(str) || def,

		ctrlKey = shortcuts.getMetaKey() + ' + ',

		createElement = name => doc.createElement(name),

		tpl = createElement('template'),

		trimLines = html => html.trim().replace(/^(<div>\s*<br\s*\/?>\s*<\/div>)+/, '').trim(),
		htmlToPlain = html => rl.Utils.htmlToPlain(html).trim(),
		plainToHtml = text => rl.Utils.plainToHtml(text),

		getFragmentOfChildren = parent => {
			let frag = doc.createDocumentFragment();
			frag.append(...parent.childNodes);
			return frag;
		},

		/**
		 * @param {Array} data
		 * @param {String} prop
		 */
		getByProp = (data, prop) => {
			for (let i = 0; i < data.length; i++) {
				const outer = data[i];
				if (outer.hasOwnProperty(prop)) {
					return outer;
				}
				if (outer.items && Array.isArray(outer.items)) {
					const item = outer.items.find(item => item.prop === prop);
					if (item) {
						return item;
					}
				}
			}
			throw new Error('item with prop ' + prop + ' not found');
		},

		SquireDefaultConfig = {
			/*
					addLinks: true // allow_smart_html_links
			*/
			sanitizeToDOMFragment: (html) => {
				tpl.innerHTML = (html || '')
					.replace(/<\/?(BODY|HTML)[^>]*>/gi, '')
					.replace(/<!--[^>]+-->/g, '')
					.replace(/<span[^>]*>\s*<\/span>/gi, '')
					.trim();
				tpl.querySelectorAll('a:empty,span:empty').forEach(el => el.remove());
				return tpl.content;
			}
		},

		pasteImageHandler = (e, squire) => {

			const items = [...e.detail.clipboardData.items];
			const imageItems = items.filter((item) => /image/.test(item.type));
			if (!imageItems.length) {
				return false;
			}
			let reader = new FileReader();
			reader.onload = (loadEvent) => {
				squire.insertImage(loadEvent.target.result);
			};
			reader.readAsDataURL(imageItems[0].getAsFile());
		};


	class CompactComposer {
		constructor(container) {
			const
				plain = createElement('textarea'),
				wysiwyg = createElement('div'),
				toolbar = createElement('div'),
				squire = new win.Squire2(wysiwyg, SquireDefaultConfig);

			this.container = container;
			container.classList.add('CompactComposer');

			plain.className = 'squire-plain';
			wysiwyg.className = 'squire-wysiwyg';
			wysiwyg.dir = 'auto';
			this.mode = ''; // 'plain' | 'wysiwyg'
			this.squire = squire;
			this.plain = plain;
			this.wysiwyg = wysiwyg;
			this.toolbar = toolbar;

			toolbar.className = 'squire-toolbar btn-toolbar';
			const actions = this.makeActions(squire, toolbar);

			this.squire.addEventListener('willPaste', (event) => {
				// https://github.com/fastmail/Squire?tab=readme-ov-file#addeventlistener
				// The content that will be inserted is available as either the fragment property, or the text property for plain text, on the detail property of the event. You can modify this text/fragment in your event handler to change what will be pasted
				tpl.innerHTML = rl.Utils.cleanHtml(event.detail.html).html;
				event.detail.fragment = tpl.content;
			});
			this.squire.addEventListener('pasteImage', (e) => {
				pasteImageHandler(e, squire);
			});

			wysiwyg.addEventListener('focus', () => {
				const range = this.squire.getSelection();
				if (range.collapsed && range.startContainer === wysiwyg) {
					// when the caret is directly in the wysiwyg a bunch of stuff
					// (like lists, blockquotes, etc...) do not work,
					// so we need to place it inside the nearest element
					if (wysiwyg.children[range.startOffset] !== undefined) {
						const newRange = document.createRange();
						newRange.setStart(wysiwyg.children[range.startOffset], 0);
						this.squire.setSelection(newRange);
					}
				}
			});

//		squire.addEventListener('focus', () => shortcuts.off());
//		squire.addEventListener('blur', () => shortcuts.on());

			container.append(toolbar, wysiwyg, plain);

			const fontFamilySelect = getByProp(actions, 'fontFamily').element;

			const fontSizeAction = getByProp(actions, 'fontSize');

			/**
			 * @param {string} fontName
			 * @return {string}
			 */
			const normalizeFontName = (fontName) => fontName.trim().replace(/(^["']*|["']*$)/g, '').trim().toLowerCase();

			/** @type {string[]} - lower cased array of available font families*/
			const fontFamiliesLowerCase = Object.values(fontFamilySelect.options).map(option => option.value.toLowerCase());

			/**
			 * A theme might have CSS like div.squire-wysiwyg[contenteditable="true"] {
			 * font-family: 'Times New Roman', Times, serif; }
			 * so let's find the best match squire.getRoot()'s font
			 * it will also help to properly handle generic font names like 'sans-serif'
			 * @type {number}
			 */
			let defaultFontFamilyIndex = 0;
			const squireRootFonts = getComputedStyle(squire.getRoot()).fontFamily.split(',').map(normalizeFontName);
			fontFamiliesLowerCase.some((family, index) => {
				const matchFound = family.split(',').some(availableFontName => {
					const normalizedFontName = normalizeFontName(availableFontName);
					return squireRootFonts.some(squireFontName => squireFontName === normalizedFontName);
				});
				if (matchFound) {
					defaultFontFamilyIndex = index;
				}
				return matchFound;
			});

			/**
			 * Instead of comparing whole 'font-family' strings,
			 * we are going to look for individual font names, because we might be
			 * editing a Draft started in another email client for example
			 *
			 * @type {Object.<string,number>}
			 */
			const fontNamesMap = {};
			/**
			 * @param {string} fontFamily
			 * @param {number} index
			 */
			const processFontFamilyString = (fontFamily, index) => {
				fontFamily.split(',').forEach(fontName => {
					const key = normalizeFontName(fontName);
					if (fontNamesMap[key] === undefined) {
						fontNamesMap[key] = index;
					}
				});
			};
			// first deal with the default font family
			processFontFamilyString(fontFamiliesLowerCase[defaultFontFamilyIndex], defaultFontFamilyIndex);
			// and now with the rest of the font families
			fontFamiliesLowerCase.forEach((fontFamily, index) => {
				if (index !== defaultFontFamilyIndex) {
					processFontFamilyString(fontFamily, index);
				}
			});

			// -----

			let ignoreNextSelectEvent = false;

			squire.addEventListener('pathChange', e => {

				const tokensMap = this.buildTokensMap(e.detail);

				if (tokensMap.has('__selection__')) {
					ignoreNextSelectEvent = false;
					return;
				}
				this.indicators.forEach((indicator) => {
					indicator.element.classList.toggle('active', indicator.selectors.some(selector => tokensMap.has(selector)));
				});

				let familySelectedIndex = defaultFontFamilyIndex;
				const fontFamily = tokensMap.get('__font_family__');
				if (fontFamily) {
					familySelectedIndex = -1; // show empty select if we don't know the font
					const fontNames = fontFamily.split(',');
					for (let i = 0; i < fontNames.length; i++) {
						const index = fontNamesMap[normalizeFontName(fontNames[i])];
						if (index !== undefined) {
							familySelectedIndex = index;
							break;
						}
					}
				}
				fontFamilySelect.selectedIndex = familySelectedIndex;

				let sizeSelectedIndex = fontSizeAction.defaultValueIndex;
				const fontSize = tokensMap.get('__font_size__');
				if (fontSize) {
					// -1 is ok because it will just show a blank <select>
					sizeSelectedIndex = fontSizeAction.items.indexOf(fontSize);
				}
				fontSizeAction.element.selectedIndex = sizeSelectedIndex;

				ignoreNextSelectEvent = true;
			});

			squire.addEventListener('select', e => {
				if (ignoreNextSelectEvent) {
					ignoreNextSelectEvent = false;
					return;
				}

				if (e.detail.range.collapsed) {
					return;
				}

				this.indicators.forEach((indicator) => {
					indicator.element.classList.toggle('active', indicator.selectors.some(selector => squire.hasFormat(selector)));
				});
			});

			/*
					squire.addEventListener('cursor', e => {
						console.dir({cursor:e.range});
					});
					squire.addEventListener('select', e => {
						console.dir({select:e.range});
					});
			*/
		}

		/**
		 * @param {Squire} squire
		 * @param {HTMLDivElement} toolbar
		 * @returns {Array}
		 * @private
		 */
		makeActions(squire, toolbar) {

			const clr = this.makeClr();
			const doClr = name => input => {
				// https://github.com/the-djmaze/snappymail/issues/826
				clr.style.left = (input.offsetLeft + input.parentNode.offsetLeft) + 'px';
				clr.style.width = input.offsetWidth + 'px';

				// firefox does not call "onchange" for #000 if we use clr.value=''
				clr.value = '#00ff0c';
				clr.onchange = () => {
					switch (name) {
						case 'color':
							squire.setTextColor(clr.value);
							break;
						case 'backgroundColor':
							squire.setHighlightColor(clr.value);
							break;
						default:
							console.error('invalid name:', name);
					}
				};
				// Chrome 110+ https://github.com/the-djmaze/snappymail/issues/1199
//				clr.oninput = () => squire.setStyle({[name]:clr.value});
				setTimeout(() => clr.click(), 1);
			};
			toolbar.append(clr);

			const browseImage = createElement('input');
			browseImage.type = 'file';
			browseImage.accept = 'image/*';
			browseImage.style.display = 'none';
			browseImage.onchange = () => {
				if (browseImage.files.length) {
					let reader = new FileReader();
					reader.readAsDataURL(browseImage.files[0]);
					reader.onloadend = () => reader.result && squire.insertImage(reader.result);
				}
			};

			const actions = [
				{
					type: 'group',
					items: [
						{
							type: 'select',
							label: 'Font',
							cmd: s => squire.setFontFace(s.value),
							prop: 'fontFamily',
							items: {
								'sans-serif': {
									Arial: '\'Nimbus Sans L\', \'Liberation sans\', \'Arial Unicode MS\', Arial, Helvetica, Garuda, Utkal, FreeSans, sans-serif',
									Tahoma: '\'Luxi Sans\', Tahoma, Loma, Geneva, Meera, sans-serif',
									Trebuchet: '\'DejaVu Sans Condensed\', Trebuchet, \'Trebuchet MS\', sans-serif',
									Lucida: '\'Lucida Sans Unicode\', \'Lucida Sans\', \'DejaVu Sans\', \'Bitstream Vera Sans\', \'DejaVu LGC Sans\', sans-serif',
									Verdana: '\'DejaVu Sans\', Verdana, Geneva, \'Bitstream Vera Sans\', \'DejaVu LGC Sans\', sans-serif'
								},
								monospace: {
									Courier: '\'Liberation Mono\', \'Courier New\', FreeMono, Courier, monospace',
									Lucida: '\'DejaVu Sans Mono\', \'DejaVu LGC Sans Mono\', \'Bitstream Vera Sans Mono\', \'Lucida Console\', Monaco, monospace'
								},
								sans: {
									Times: '\'Nimbus Roman No9 L\', \'Times New Roman\', Times, FreeSerif, serif',
									Palatino: '\'Bitstream Charter\', \'Palatino Linotype\', Palatino, Palladio, \'URW Palladio L\', \'Book Antiqua\', Times, serif',
									Georgia: '\'URW Palladio L\', Georgia, Times, serif'
								}
							}
						},
						{
							type: 'select',
							label: 'Font size',
							cmd: s => squire.setFontSize(s.value),
							prop: 'fontSize',
							items: ['11px', '13px', '16px', '20px', '24px', '30px'],
							defaultValueIndex: 2
						}
					]
				},
				{
					type: 'menu',
					label: 'Colors',
					icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m8 7.75c0.713 0 1.25-0.559 1.25-1.25 0-0.691-0.54-1.25-1.25-1.25-0.71 0-1.25 0.556-1.25 1.25 0 0.694 0.537 1.25 1.25 1.25zm6.5 3c0.713 0 1.25-0.559 1.25-1.25 0-0.691-0.54-1.25-1.25-1.25s-1.25 0.556-1.25 1.25c0 0.694 0.537 1.25 1.25 1.25zm-9 0c0.713 0 1.25-0.559 1.25-1.25 0-0.691-0.54-1.25-1.25-1.25s-1.25 0.556-1.25 1.25c0 0.694 0.537 1.25 1.25 1.25zm4.5 7.25c-4.47 0-8-3.63-8-8 0-4.81 3.97-8 8.17-8 4.12 0 7.83 3.02 7.83 7.21 0 2.83-2.2 4.79-4.79 4.79h-1.42c-0.277 0-0.417 0.2-0.417 0.375 0 0.208 0.104 0.382 0.312 0.521 0.208 0.139 0.312 0.507 0.312 1.1 0 1.09-0.858 2-2 2zm2-10.2c0.713 0 1.25-0.559 1.25-1.25s-0.54-1.25-1.25-1.25-1.25 0.556-1.25 1.25 0.537 1.25 1.25 1.25zm-2 8.75c0.477 0 0.737-0.739 0.188-1.08-0.226-0.142-0.312-0.514-0.312-1.04 0-1.18 0.934-1.88 1.9-1.88h1.44c2.09-0.032 3.27-1.65 3.29-3.29 0-3.19-2.79-5.71-6.33-5.71-3.74 0-6.67 2.89-6.67 6.5 0 3.49 2.68 6.45 6.5 6.5z"/></svg>',
					items: [
						{
							type: 'menu_item',
							label: 'Text Color',
							cmd: doClr('color'),
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m3 18v-3h14v3zm2.35-5 3.75-10h1.79l3.75 10h-1.73l-0.896-2.56h-4.02l-0.917 2.56zm3.15-4h3l-1.46-4.04h-0.0833z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Background Color',
							cmd: doClr('backgroundColor'),
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m7.22 16.6-4.87-4.85q-0.166-0.166-0.26-0.364-0.0936-0.198-0.0936-0.427t0.0936-0.447q0.0936-0.218 0.26-0.385l4.6-4.6-2.52-2.52 1.06-1.06 8.18 8.18q0.166 0.166 0.25 0.375 0.0832 0.208 0.0832 0.437 0 0.229-0.0832 0.437-0.0832 0.208-0.25 0.375l-4.85 4.85q-0.166 0.166-0.375 0.26-0.208 0.0936-0.437 0.0936-0.229-0.0208-0.427-0.104-0.198-0.0832-0.364-0.25zm0.791-10-4.35 4.35v-0.0208 0.0208h8.7v-0.0208 0.0208zm8.18 10.3q-0.77 0-1.3-0.52-0.531-0.52-0.531-1.29 0-0.499 0.229-0.967 0.229-0.468 0.541-0.884l1.06-1.33 1.04 1.33q0.291 0.416 0.531 0.884 0.239 0.468 0.239 0.967 0 0.77-0.531 1.29-0.531 0.52-1.28 0.52z"/></svg>'
						}
					]
				},
				{
					type: 'group',
					items: [
						{
							type: 'button',
							label: 'Bold',
							cmd: () => this.doAction('bold', 'B'),
							key: 'B',
							matches: 'B,STRONT',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m5.53 16v-12h4.75q1.4 0 2.57 0.861 1.18 0.861 1.18 2.39 0 1.06-0.469 1.66t-0.885 0.865q0.542 0.249 1.17 0.895 0.625 0.646 0.625 1.9 0 1.9-1.4 2.67-1.4 0.771-2.62 0.771zm2.65-2.46h2.18q1.01 0 1.21-0.51t0.208-0.74q0-0.229-0.219-0.74-0.219-0.51-1.28-0.51h-2.1zm0-4.83h1.94q0.688 0 1.01-0.365 0.323-0.365 0.323-0.781 0-0.5-0.356-0.812-0.356-0.312-0.923-0.312h-1.99z"/></svg>'
						},
						{
							type: 'button',
							label: 'Italic',
							cmd: () => this.doAction('italic', 'I'),
							key: 'I',
							matches: 'I,EM',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m4.5 16v-2h3.33l2.58-8h-3.42v-2h8.5v2h-3.08l-2.58 8h3.17v2z"/></svg>'
						},
						{
							type: 'button',
							label: 'Underline',
							cmd: () => this.doAction('underline', 'U'),
							key: 'U',
							matches: 'U',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m5 17v-1.5h10v1.5zm5-3q-2 0-3.09-1.24t-1.09-3.28v-6.48h2.03v6.61q0 1.1 0.551 1.79 0.551 0.688 1.61 0.688 1.06 0 1.61-0.688 0.55-0.688 0.55-1.79v-6.61h2.02v6.48q0 2.04-1.09 3.28t-3.09 1.24z"/></svg>'
						}
					]
				},
				{
					type: 'group',
					items: [
						{
							type: 'button',
							label: 'Ordered List',
							cmd: () => this.doList('OL'),
							key: 'Shift + 8',
							matches: 'OL',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m3 17v-1h2v-0.5h-1v-1h1v-0.5h-2v-1h2.5q0.212 0 0.356 0.144t0.144 0.356v1q0 0.212-0.144 0.356t-0.356 0.144q0.212 0 0.356 0.144t0.144 0.356v1q0 0.212-0.144 0.356t-0.356 0.144zm0-5v-2q0-0.212 0.144-0.356t0.356-0.144h1.5v-0.5h-2v-1h2.5q0.212 0 0.356 0.144t0.144 0.356v1.5q0 0.212-0.144 0.356t-0.356 0.144h-1.5v0.5h2v1zm1-5v-3h-1v-1h2v4zm3.5 8v-1.5h9.5v1.5zm0-4.25v-1.5h9.5v1.5zm0-4.25v-1.5h9.5v1.5z"/></svg>'
						},
						{
							type: 'button',
							label: 'List',
							cmd: () => this.doList('UL'),
							key: 'Shift + 9',
							matches: 'UL',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m7.5 15v-1.5h9.5v1.5zm0-4.25v-1.5h9.5v1.5zm0-4.25v-1.5h9.5v1.5zm-3 9.25q-0.621 0-1.06-0.442-0.438-0.442-0.438-1.06 0-0.621 0.442-1.06 0.442-0.438 1.06-0.438 0.621 0 1.06 0.442 0.438 0.442 0.438 1.06 0 0.621-0.442 1.06-0.442 0.438-1.06 0.438zm0-4.25q-0.621 0-1.06-0.442-0.438-0.442-0.438-1.06 0-0.621 0.442-1.06 0.442-0.438 1.06-0.438 0.621 0 1.06 0.442 0.438 0.442 0.438 1.06 0 0.621-0.442 1.06-0.442 0.438-1.06 0.438zm0-4.25q-0.621 0-1.06-0.442-0.438-0.442-0.438-1.06 0-0.621 0.442-1.06 0.442-0.438 1.06-0.438 0.621 0 1.06 0.442 0.438 0.442 0.438 1.06 0 0.621-0.442 1.06-0.442 0.438-1.06 0.438z"/></svg>'
						},
						{
							type: 'button',
							label: 'Decrease Indent',
							cmd: () => this.changeLevel('decrease'),
							key: ']',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m3 17v-1.5h14v1.5zm6-3.12v-1.5h8v1.5zm0-3.12v-1.5h8v1.5zm0-3.12v-1.5h8v1.5zm-6-3.12v-1.5h14v1.5zm4 8.5v-6l-4 3z"/></svg>'
						},
						{
							type: 'button',
							label: 'Increase Indent',
							cmd: () => this.changeLevel('increase'),
							key: '[',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m3 17v-1.5h14v1.5zm6-3.12v-1.5h8v1.5zm0-3.12v-1.5h8v1.5zm0-3.12v-1.5h8v1.5zm-6-3.12v-1.5h14v1.5zm0 8.5v-6l4 3z"/></svg>'
						}
					]
				},
				{
					type: 'menu',
					rightEdge: true,
					label: 'Insert Image',
					icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m15 1v2h-2v2h2v2h2v-2h2v-2h-2v-2zm-12 2c-1.09 0-2 0.909-2 2v10c0 1.09 0.909 2 2 2h14c1.09 0 2-0.909 2-2v-5h-1.75v5.25h-14.5v-10.5h7.25v-1.75zm9 6-3 4-2-3-3 4h12z"/></svg>',
					items: [
						{
							type: 'menu_item',
							label: 'Image File',
							cmd: () => browseImage.click(),
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m7 11h8l-2.62-3.5-1.88 2.5-1.37-1.83zm-4.5 6q-0.604 0-1.05-0.448t-0.448-1.05v-10h1.5v10h13.5v1.5zm3-3q-0.604 0-1.05-0.448-0.448-0.448-0.448-1.05v-9q0-0.619 0.448-1.06t1.05-0.441h3.52l2 2h5.48q0.619 0 1.06 0.441 0.441 0.441 0.441 1.06v7q0 0.604-0.441 1.05-0.441 0.448-1.06 0.448zm0-1.5h11v-7h-6.08l-2-2h-2.92zm0 0v-9z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'From URL',
							cmd: () => {
								//TODO: check is if an IMG node is in range already
								const src = prompt('Image', 'https://');
								if (src) {
									this.squire.insertImage(src);
								}
							},
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m11.9 8h-1.88c-0.692 0-1.28-0.244-1.77-0.732-0.488-0.488-0.731-1.08-0.731-1.77s0.244-1.28 0.731-1.77 1.08-0.729 1.77-0.729h1.88v0.938h-1.88c-0.434 0-0.803 0.152-1.11 0.456s-0.456 0.673-0.456 1.11 0.152 0.803 0.456 1.11 0.607 0.456 1.11 0.456h1.88zm-1.25-2.03v-0.938h3.75v0.938zm2.5 2.03v-0.938h1.88c0.434 0 0.803-0.152 1.11-0.456s0.456-0.673 0.456-1.11-0.152-0.803-0.456-1.11-0.673-0.456-1.11-0.456h-1.88v-0.938h1.88c0.692 0 1.28 0.244 1.77 0.732 0.488 0.488 0.731 1.08 0.731 1.77 0 0.692-0.244 1.28-0.731 1.77-0.488 0.486-1.08 0.729-1.77 0.729zm3.38 2v5.5c0 0.403-0.147 0.753-0.441 1.05s-0.647 0.448-1.06 0.448h-11c-0.412 0-0.766-0.149-1.06-0.448s-0.441-0.649-0.441-1.05v-9.25c0-0.403 0.147-0.753 0.441-1.05s0.649-0.407 1.06-0.448h1.5v1.5h-1.5v9.25h11v-5.5zm-11.5 4h9l-3-4-2.25 3-1.5-2z"/></svg>'
						}
					]
				},
				{
					// this is a special case: we move the "attach" button group to the toolbar
					// TODO: there is probably a better way of doing this in the template
					// TODO: move Encrypt/Sign button group ?
					type: 'move_parent',
					label: 'Attach File',
					id: 'composeUploadButton',
					icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m12.5 9.5v-4.5h1.5v4.5zm-3.5 5.44c-1.02-0.272-1.5-1.15-1.5-2.02v-7.92h1.5zm0.5 3.06c-2.59 0-4.5-2.11-4.5-4.65v-8.1c0-1.95 1.55-3.25 3.25-3.25 1.85 0 3.25 1.51 3.25 3.4v6.35h-1.5v-6.5c0-1.09-0.883-1.75-1.75-1.75-1.06 0-1.75 0.906-1.75 1.79v8.21c0 2.63 3.33 4.15 5.25 1.96v1.94c-0.706 0.428-1.56 0.604-2.25 0.604zm3.75-1v-2.25h-2.25v-1.5h2.25v-2.25h1.5v2.25h2.25v1.5h-2.25v2.25z"/></svg>'
				},
				{
					type: 'menu_more',
					label: 'More',
					rightEdge: true,
					showInPlainMode: true,
					icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m2 4v2h16v-2zm0 5v2h16v-2zm0 5v2h16v-2z"/></svg>',
					items: [
						{
							type: 'menu_item',
							label: 'Undo',
							cmd: () => squire.undo(),
							key: 'Z',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m4.82 9.3c1.45-1.26 3.32-2.03 5.4-2.03 3.64 0 6.71 2.37 7.79 5.65l-1.85 0.61c-0.821-2.49-3.17-4.3-5.94-4.3-1.52 0-2.92 0.563-4 1.47l2.83 2.83h-7.04v-7.04z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Redo',
							cmd: () => squire.redo(),
							key: 'Y',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m15.2 9.3c-1.45-1.26-3.32-2.03-5.4-2.03-3.64 0-6.71 2.37-7.79 5.65l1.85 0.61c0.821-2.49 3.17-4.3 5.94-4.3 1.52 0 2.92 0.563 4 1.47l-2.83 2.83h7.04v-7.04z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Blockquote',
							cmd: () => {
								if (!['UL', 'OL', 'BLOCKQUOTE'].some(listTag => this.squire.hasFormat(listTag))) {
									this.changeLevel('increase');
								}
							},
							matches: 'BLOCKQUOTE',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m4 3c-0.554 0-1 0.446-1 1s0.446 1 1 1h12c0.554 0 1-0.446 1-1s-0.446-1-1-1h-12zm0 6c-0.554 0-1 0.446-1 1v6c0 0.554 0.446 1 1 1s1-0.446 1-1v-6c0-0.554-0.446-1-1-1zm5 0c-0.554 0-1 0.446-1 1s0.446 1 1 1h7c0.554 0 1-0.446 1-1s-0.446-1-1-1h-7zm0 6c-0.554 0-1 0.446-1 1s0.446 1 1 1h7c0.554 0 1-0.446 1-1s-0.446-1-1-1h-7z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Link',
							cmd: () => {
								/** @type {Range} range */
								const range = this.squire.getSelection();
								let linkNode;
								if (range.collapsed || range.startContainer.parentNode === range.endContainer.parentNode) {
									const root = this.squire.getRoot();
									for (let node = range.startContainer; node !== root; node = node.parentNode) {
										if (node.tagName === 'A') {
											range.selectNode(node);
											linkNode = node;
											break;
										}
									}
								}
								const url = prompt('Link', linkNode?.href || 'https://');
								if (url != null) {
									if (url.length) {
										if (range.collapsed === false) {
											// squire breaks the wrapping node, so if we have a <b>
											// inside the selection it will create something like this:
											// <a>t</a><b><a>ex</a></b><a>t</a> and we don't want that
											// TODO: this could be more elegant
											this.squire.removeAllFormatting(range);
										}
										this.squire.makeLink(url);
									} else if (linkNode) {
										this.squire.removeLink();
									}
								}
							},
							matches: 'A',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m15.4 16.7c-0.509 0.521-1.13 0.781-1.87 0.781-0.735 0-1.36-0.256-1.87-0.771l-1.91-1.91c-0.515-0.515-0.771-1.14-0.771-1.87 0-0.743 0.267-1.38 0.801-1.9l-0.809-0.809c-0.525 0.533-1.16 0.801-1.91 0.801-0.735 0-1.36-0.255-1.87-0.763l-1.9-1.89c-0.521-0.509-0.781-1.13-0.781-1.87-6e-7 -0.735 0.255-1.36 0.763-1.87l1.34-1.35c0.509-0.521 1.13-0.781 1.87-0.781 0.735 1.6e-4 1.36 0.256 1.87 0.771l1.91 1.91c0.515 0.515 0.772 1.14 0.772 1.87 0 0.739-0.265 1.37-0.792 1.9l0.809 0.809c0.524-0.527 1.16-0.792 1.9-0.792 0.735 0 1.36 0.255 1.87 0.763l1.9 1.89c0.521 0.509 0.781 1.13 0.781 1.87 0 0.735-0.255 1.36-0.763 1.87zm-1.25-1.24 1.34-1.35c0.165-0.178 0.248-0.385 0.248-0.624 0-0.245-0.0862-0.455-0.258-0.626l-1.9-1.89c-0.172-0.172-0.38-0.257-0.625-0.257-0.249-3.1e-5 -0.466 0.0966-0.653 0.286l0.577 0.577c0.353 0.353 0.353 0.922 0 1.28-0.353 0.353-0.922 0.353-1.28 0l-0.577-0.577c-0.184 0.182-0.278 0.401-0.278 0.654 0 0.251 0.0824 0.459 0.248 0.624l1.91 1.91c0.172 0.171 0.38 0.257 0.625 0.257 0.239 0 0.444-0.0849 0.615-0.257zm-6.43-6.5-0.577-0.577c-0.353-0.353-0.353-0.922 0-1.28 0.353-0.353 0.922-0.353 1.28 0l0.575 0.575c0.184-0.18 0.279-0.394 0.279-0.643-6e-7 -0.245-0.0849-0.454-0.257-0.625l-1.91-1.91c-0.172-0.172-0.38-0.257-0.625-0.257-0.239 0-0.444 0.0852-0.615 0.257l-1.34 1.35c-0.159 0.172-0.238 0.379-0.238 0.624 2e-7 0.251 0.0811 0.46 0.247 0.625l1.9 1.89c0.172 0.172 0.38 0.257 0.625 0.257 0.253-9e-7 0.473-0.0991 0.661-0.295z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Strikethrough',
							cmd: () => this.doAction('strikethrough', 'S'),
							key: 'Shift + 7',
							matches: 'S',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m10.1 15.9q-1.5 0-2.62-0.875t-1.5-2.31l1.69-0.688q0.333 1.06 0.969 1.6 0.635 0.542 1.51 0.542 0.937 0 1.49-0.448 0.552-0.448 0.552-1.2 0-0.333-0.125-0.615t-0.375-0.51h2.15q0.104 0.229 0.135 0.49t0.0312 0.615q0 1.5-1.08 2.45-1.08 0.948-2.81 0.948zm-8.12-6v-1.5h16v1.5zm8-6q1.33 0 2.21 0.562t1.42 1.79l-1.62 0.708q-0.229-0.625-0.76-1.01-0.531-0.385-1.2-0.385-0.771 0-1.28 0.375-0.51 0.375-0.552 0.958h-1.81q0.0417-1.31 1.06-2.16 1.02-0.844 2.54-0.844z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Superscript',
							cmd: () => this.doAction('superscript', 'SUP'),
							key: 'Shift + 6',
							matches: 'SUP',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m13.4 8v-1.99q0-0.424 0.288-0.715 0.288-0.291 0.712-0.292h1v-1h-2v-1h2q0.425 0 0.712 0.287 0.288 0.286 0.288 0.71v0.997q0 0.424-0.288 0.715-0.288 0.292-0.712 0.292h-1v1h2v1zm-9.38 8 3.31-5.21-3.08-4.79h1.89l2.21 3.56h0.0833l2.21-3.56h1.9l-3.1 4.79 3.33 5.21h-1.9l-2.44-3.88h-0.0833l-2.44 3.88z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Subscript',
							cmd: () => this.doAction('subscript', 'SUB'),
							key: 'Shift + 5',
							matches: 'SUB',
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m13.4 18v-1.99q0-0.424 0.288-0.715 0.288-0.292 0.712-0.292h1v-1h-2v-1h2q0.425 0 0.712 0.287 0.288 0.286 0.288 0.71v0.997q0 0.424-0.288 0.715-0.288 0.292-0.712 0.292h-1v1h2v1zm-9.38-3 3.31-5.21-3.08-4.79h1.89l2.21 3.56h0.0833l2.21-3.56h1.9l-3.1 4.79 3.33 5.21h-1.9l-2.44-3.88h-0.0833l-2.44 3.88z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Left to Right',
							cmd: () => squire.setTextDirection('ltr'),
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m8 12v-4q-1.25 0-2.12-0.875-0.875-0.875-0.875-2.12t0.875-2.12q0.875-0.875 2.11-0.875h6.01v1.5h-1.5v8.5h-1.5v-8.5h-1.5v8.5zm6 6-1.06-1.06 1.19-1.19h-11.1v-1.5h11.1l-1.19-1.19 1.06-1.06 3 3zm-6-11.5v-3q-0.625 0-1.06 0.442-0.438 0.442-0.438 1.06 0 0.621 0.441 1.06 0.441 0.437 1.06 0.437z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Right to Left',
							cmd: () => squire.setTextDirection('rtl'),
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m6 18-3-3 3-3 1.06 1.06-1.19 1.19h11.1v1.5h-11.1l1.19 1.19zm2-6v-4q-1.25 0-2.12-0.875-0.875-0.875-0.875-2.12t0.875-2.12q0.875-0.875 2.11-0.875h6.01v1.5h-1.5v8.5h-1.5v-8.5h-1.5v8.5zm0-5.5v-3q-0.625 0-1.06 0.442-0.438 0.442-0.438 1.06 0 0.621 0.441 1.06 0.441 0.437 1.06 0.437z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'HTML Mode',
							id: 'menu-item-mode-wysiwyg',
							cmd: () => this.setModeCmd('wysiwyg'),
							showInPlainMode: true,
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m2 2v3h1v-2h2v-1zm13 0v1h2v2h1v-3zm-9 3v10h2v-4h4v4h2v-10h-2v4h-4v-4zm-4 10v3h3v-1h-2v-2zm15 0v2h-2v1h3v-3z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Edit Source',
							id: 'menu-item-mode-source',
							cmd: () => this.setModeCmd('source'),
							showInPlainMode: true,
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m12 2.83c-0.478-0.138-0.976 0.141-1.11 0.619l-3.6 12.6c-0.138 0.478 0.141 0.976 0.619 1.11 0.478 0.138 0.976-0.141 1.11-0.619l3.6-12.6c0.138-0.478-0.141-0.976-0.619-1.11zm2.27 4.65 2.51 2.51-2.51 2.51c-0.352 0.352-0.352 0.923 0 1.27 0.352 0.352 0.923 0.352 1.27 0l3.15-3.15c0.352-0.352 0.352-0.923 0-1.27l-3.15-3.15c-0.352-0.352-0.923-0.352-1.27-0.00141-0.35 0.35-0.35 0.921 0.00141 1.27zm-8.63-1.27c-0.352-0.352-0.923-0.352-1.27 0l-3.15 3.15c-0.352 0.352-0.352 0.923 0 1.27l3.15 3.15c0.352 0.352 0.923 0.352 1.27 0 0.352-0.352 0.352-0.923 0-1.27l-2.51-2.51 2.51-2.51c0.352-0.352 0.352-0.923 0-1.27z"/></svg>'
						},
						{
							type: 'menu_item',
							label: 'Plain Text Mode',
							id: 'menu-item-mode-plain',
							cmd: () => this.setModeCmd('plain'),
							showInPlainMode: true,
							icon: '<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="m2 2v3h1v-2h2v-1zm13 0v1h2v2h1v-3zm-9 3v2h3v8h2v-8h3v-2zm-4 10v3h3v-1h-2v-2zm15 0v2h-2v1h3v-3z"/></svg>'
						}
					]
				}
			];
// 				// clear: {
// 				// 	removeStyle: {
// 				// 		html: '⎚',
// 				// 		cmd: () => squire.setStyle()
// 				// 	}
// 				// }

			dispatchEvent(new CustomEvent('squire2-toolbar', {
				detail: {
					squire: this,
					actions: actions
				}
			}));
			this.indicators = this.addActionsToParent(actions, toolbar);
			return actions;
		}

		/**
		 * @private
		 */
		makeClr() {
			/**@type {HTMLInputElement} clr*/
			const clr = createElement('input');
			clr.type = 'color';
			// Chrome https://github.com/the-djmaze/snappymail/issues/1199
			let clrid = 'squire-colors',
				colorlist = doc.getElementById(clrid),
				add = hex => colorlist.append(new Option(hex));
			if (!colorlist) {
				colorlist = createElement('datalist');
				colorlist.id = clrid;
				// Color blind safe Tableau 10 by Maureen Stone
				add('#4E79A7');
				add('#F28E2B');
				add('#E15759');
				add('#76B7B2');
				add('#59A14F');
				add('#EDC948');
				add('#B07AA1');
				add('#FF9DA7');
				add('#9C755F');
				add('#BAB0AC');
				doc.body.append(colorlist);
			}
			clr.setAttribute('list', clrid);
			return clr;
		}

		/**
		 * @param {Array} items
		 * @param {HTMLElement} parent
		 * @private
		 */
		addActionsToParent(items, parent) {
			const indicators = [];
			items.forEach(item => {
				let element, event;
				switch (item.type) {
					case 'group':
						const group = createElement('div');
						group.className = 'btn-group';
						if (!item.showInPlainMode) {
							group.className += ' squire-html-mode-item';
						}
						if (item.items) {
							indicators.push(...this.addActionsToParent(item.items, group));
						}
						parent.append(group);
						return indicators;
					case 'menu':
					case 'menu_more':
						const menuWrap = createElement('div');
						menuWrap.className = 'btn-group dropdown squire-toolbar-menu-wrap';
						menuWrap.title = item.label;
						if (!item.showInPlainMode) {
							menuWrap.className += ' squire-html-mode-item';
						}
						const menuBtn = createElement('button');
						menuBtn.type = 'button';
						menuBtn.className = 'btn dropdown-toggle';
						if (item.icon !== '') {
							menuBtn.innerHTML = item.icon;
							menuBtn.firstElementChild.setAttribute('class', 'squire-toolbar-svg-icon');
						} else {
							menuBtn.className += ' fontastic';
							menuBtn.textContent = '☰';
						}
						menuWrap.appendChild(menuBtn);

						const menu = createElement('ul');
						menu.className = 'dropdown-menu squire-toolbar-menu';
						if (item.rightEdge) {
							menu.className += ' right-edge';
						}
						menu.setAttribute('role', 'menu');

						if (item.items) {
							indicators.push(...this.addActionsToParent(item.items, menu));
						}
						menuWrap.appendChild(menu);
						parent.append(menuWrap);
						ko.applyBindingAccessorsToNode(menuWrap, { registerBootstrapDropdown: true });
						item.element = menuWrap;
						return indicators;
					case 'move_parent':
						// we only move into main composer not the signature composer
						if (this.container.className.indexOf('e-signature-place') === -1) {
							element = doc.getElementById(item.id);
							if (element) {
								element.className = 'btn';
								if (item.icon) {
									element.innerHTML = item.icon;
									element.firstElementChild.setAttribute('class', 'squire-toolbar-svg-icon');
								}
								if (item.label) {
									element.title = item.label;
								}
								element.parentElement.className += ' ' + item.id + '-parent';
								parent.append(element.parentElement);
							}
						}
						return [];
					case 'button':
						element = createElement('button');
						element.type = 'button';
						element.className = 'btn';
						element.innerHTML = item.icon;
						element.firstElementChild.setAttribute('class', 'squire-toolbar-svg-icon');
						event = 'click';
						break;
					case 'select':
						element = createElement('select');
						element.className = 'btn';
						element.innerHTML = item.icon;
						event = 'input';
						if (Array.isArray(item.items)) {
							item.items.forEach(value => {
								value = Array.isArray(value) ? value : [value, value];
								const option = new Option(value[0], value[1]);
								option.style[item.prop] = value[1];
								element.append(option);
							});
						} else {
							Object.entries(item.items).forEach(([label, options]) => {
								const optgroup = createElement('optgroup');
								optgroup.label = label;
								Object.entries(options).forEach(([text, value]) => {
									const option = new Option(text, value);
									option.style[item.prop] = value;
									optgroup.append(option);
								});
								element.append(optgroup);
							});
						}
						if (item.defaultValueIndex) {
							element.selectedIndex = item.defaultValueIndex;
						}
						item.element = element;
						break;
					case 'menu_item':
						element = createElement('li');
						element.className = 'squire-toolbar-menu-item';
						if (!item.showInPlainMode) {
							element.className += ' squire-html-mode-item';
						}
						element.innerHTML = item.icon + '<span>' + item.label + '</span>';
						element.firstElementChild.setAttribute('class', 'squire-toolbar-svg-icon squire-toolbar-menu-item-icon');
						event = 'click';
						break;
				}

				element.title = item.label + (item.key ? ' (' + ctrlKey + item.key + ')' : '');
				element.tabIndex = -1;
				element.addEventListener(event, () => item.cmd(element));
				if (item.id) {
					element.id = item.id;
				}
				if (item.matches) {
					indicators.push({
						element: element,
						selectors: item.matches.split(',')
					});
				}
				parent.append(element);
			});
			return indicators;
		}

		/**
		 * Plugins might add their own pathChange listeners therefore they should
		 * use this utility function. @see example below
		 * @param {Object} eventDetail detail of pathChange event
		 * @returns {Map<any, any>}
		 */
		buildTokensMap(eventDetail) {
			if (!eventDetail.tokensMap) {
				const tokensMap = new Map();
				if (eventDetail.path !== '(selection)') {
					window.parsel.tokenize(eventDetail.path).forEach(token => {
						if (token.type === 'type') {
							// token.name is a tag like B, I, UL, etc...
							tokensMap.set(token.name, '1');
						} else if (token.name === 'fontFamily') {
							// token.value can be a string like '"LucidaSansUnicode","DejaVuSans","BitstreamVeraSans",sans-serif'
							tokensMap.set('__font_family__', token.value);
						} else if (token.name === 'fontSize') {
							// token.value can be a string like '24px' or 'Large'
							tokensMap.set('__font_size__', token.value);
						}
					});
				} else {
					tokensMap.set('__selection__', '1');
				}
				eventDetail.tokensMap = tokensMap;
			}
			return eventDetail.tokensMap;
		}

		doAction(name, tag) {
			if (tag && this.squire.hasFormat(tag)) {
				// ex: bold -> removeBold
				name = 'remove' + name.charAt(0).toUpperCase() + name.slice(1);
			}
			this.squire[name]();
		}

		doList(type) {
			if (this.squire.hasFormat(type)) {
				this.squire.removeList();
				return;
			}
			if (type === 'UL') {
				this.squire.makeUnorderedList();
			} else if (type === 'OL') {
				this.squire.makeOrderedList();
			}
		}

		changeLevel(incDec) {
			const type = ['UL', 'OL'].some(listTag => this.squire.hasFormat(listTag))
				? 'List'
				: 'Quote';
			this.squire[incDec + type + 'Level']();
		}

		/*
			testPresenceinSelection(format, validation) {
				return validation.test(this.squire.getPath()) || this.squire.hasFormat(format);
			}
		*/

		setModeCmd(mode) {
			this.setMode(mode);
			setTimeout(() => this.focus(), 1);
		}

		setMode(mode) {
			if (this.mode !== mode) {
				let cl = this.container.classList,
					source = 'source' === this.mode;
				cl.remove('squire2-mode-' + this.mode);
				if ('plain' === mode) {
					this.plain.value = htmlToPlain(source ? this.plain.value : this.squire.getHTML(), true);
					this.toolbar.classList.add('mode-plain');
				} else if ('source' === mode) {
					this.plain.value = this.squire.getHTML();
					this.toolbar.classList.add('mode-plain');
				} else {
					this.setData(source ? this.plain.value : plainToHtml(this.plain.value, true));
					mode = 'wysiwyg';
					this.toolbar.classList.remove('mode-plain');
				}

				doc.getElementById('menu-item-mode-' + this.mode)?.classList.remove('active');
				doc.getElementById('menu-item-mode-' + mode).classList.add('active');

				this.mode = mode;
				cl.add('squire2-mode-' + mode);
				this.onModeChange?.();
			}
		}

		on(type, fn) {
			if ('mode' === type) {
				this.onModeChange = fn;
			} else {
				this.squire.addEventListener(type, fn);
				this.plain.addEventListener(type, fn);
			}
		}

		execCommand(cmd, cfg) {
			if ('insertSignature' === cmd) {
				cfg = Object.assign({
					clearCache: false,
					isHtml: false,
					insertBefore: false,
					signature: ''
				}, cfg);

				if (cfg.clearCache) {
					this._prev_txt_sig = null;
				} else try {
					const signature = cfg.isHtml ? htmlToPlain(cfg.signature) : cfg.signature;
					if ('plain' === this.mode) {
						let
							text = this.plain.value,
							prevSignature = this._prev_txt_sig;
						if (prevSignature) {
							text = text.replace(prevSignature, '').trim();
						}
						this.plain.value = cfg.insertBefore ? '\n\n' + signature + '\n\n' + text : text + '\n\n' + signature;
					} else {
						const squire = this.squire,
							root = squire.getRoot(),
							div = createElement('div');
						div.className = 'rl-signature';
						div.innerHTML = cfg.isHtml ? cfg.signature : plainToHtml(cfg.signature);
						root.querySelectorAll('div.rl-signature').forEach(node => node.remove());
						cfg.insertBefore ? root.prepend(div) : root.append(div);
						// Move cursor above signature
						for (let i = 0; i < 2; i++) {
							const divbr = createElement('div');
							divbr.append(createElement('br'));
							div.before(divbr);
						}
					}
					this._prev_txt_sig = signature;
				} catch (e) {
					console.error(e);
				}
			}
		}

		getData() {
			return 'source' === this.mode ? this.plain.value : trimLines(this.squire.getHTML());
		}

		setData(html) {
//		this.plain.value = html;
			const squire = this.squire;
			squire.setHTML(trimLines(html));
			const node = squire.getRoot(),
				range = squire.getSelection();
			range.setStart(node, 0);
			range.setEnd(node, 0);
			squire.setSelection(range);
		}

		getPlainData() {
			return this.plain.value;
		}

		setPlainData(text) {
			this.plain.value = text;
		}

		blur() {
			this.squire.blur();
		}

		focus() {
			if ('wysiwyg' === this.mode) {
				this.squire.focus();
			} else {
				this.plain.focus();
				this.plain.setSelectionRange(0, 0);
			}
		}
	}
})(window);