snappymail/dev/View/User/MailBox/MessageView.js

import ko from 'ko';

import { DATA_IMAGE_USER_DOT_PIC, UNUSED_OPTION_VALUE } from 'Common/Consts';

import {
	Capa,
	ComposeType,
	ClientSideKeyName,
	KeyState,
	FolderType,
	Focused,
	Layout,
	MessageSetAction
} from 'Common/Enums';

import { $htmlCL, leftPanelDisabled, keyScopeReal, useKeyboardShortcuts, moveAction } from 'Common/Globals';

import {
	inFocus,
	removeSelection,
	removeInFocus,
	mailToHelper,
	isTransparent
} from 'Common/Utils';

import Audio from 'Common/Audio';

import { i18n } from 'Common/Translator';
import { attachmentDownload } from 'Common/Links';

import { getUserPic, storeMessageFlagsToCache } from 'Common/Cache';

import AppStore from 'Stores/User/App';
import SettingsStore from 'Stores/User/Settings';
import AccountStore from 'Stores/User/Account';
import FolderStore from 'Stores/User/Folder';
import MessageStore from 'Stores/User/Message';

import * as Local from 'Storage/Client';

import Remote from 'Remote/User/Fetch';

import { getApp } from 'Helper/Apps/User';

import { view, command, ViewType, showScreenPopup, createCommand } from 'Knoin/Knoin';
import { AbstractViewNext } from 'Knoin/AbstractViewNext';

const Settings = rl.settings;

@view({
	name: 'View/User/MailBox/MessageView',
	type: ViewType.Right,
	templateID: 'MailMessageView'
})
class MessageViewMailBoxUserView extends AbstractViewNext {
	constructor() {
		super();

		let lastEmail = '';

		const createCommandReplyHelper = (type) =>
			createCommand(() => {
				this.lastReplyAction(type);
				this.replyOrforward(type);
			}, this.canBeRepliedOrForwarded);

		const createCommandActionHelper = (folderType, useFolder) =>
			createCommand(() => {
				const message = this.message();
				if (message && this.allowMessageListActions) {
					this.message(null);
					getApp().deleteMessagesFromFolder(folderType, message.folderFullNameRaw, [message.uid], useFolder);
				}
			}, this.messageVisibility);

		this.oHeaderDom = null;
		this.oMessageScrollerDom = null;

		this.bodyBackgroundColor = ko.observable('');

		this.pswp = null;

		this.moveAction = moveAction;

		this.allowComposer = !!Settings.capa(Capa.Composer);
		this.allowMessageActions = !!Settings.capa(Capa.MessageActions);
		this.allowMessageListActions = !!Settings.capa(Capa.MessageListActions);

		this.logoImg = (Settings.get('UserLogoMessage')||'').trim();
		this.logoIframe = (Settings.get('UserIframeMessage')||'').trim();

		this.mobile = !!Settings.app('mobile');

		this.attachmentsActions = AppStore.attachmentsActions;

		this.message = MessageStore.message;
		this.messageListChecked = MessageStore.messageListChecked;
		this.hasCheckedMessages = MessageStore.hasCheckedMessages;
		this.messageListCheckedOrSelectedUidsWithSubMails = MessageStore.messageListCheckedOrSelectedUidsWithSubMails;
		this.messageLoadingThrottle = MessageStore.messageLoadingThrottle;
		this.messagesBodiesDom = MessageStore.messagesBodiesDom;
		this.useThreads = SettingsStore.useThreads;
		this.replySameFolder = SettingsStore.replySameFolder;
		this.layout = SettingsStore.layout;
		this.usePreviewPane = SettingsStore.usePreviewPane;
		this.isMessageSelected = MessageStore.isMessageSelected;
		this.messageActiveDom = MessageStore.messageActiveDom;
		this.messageError = MessageStore.messageError;

		this.fullScreenMode = MessageStore.messageFullScreenMode;

		this.messageListOfThreadsLoading = ko.observable(false).extend({ rateLimit: 1 });
		this.highlightUnselectedAttachments = ko.observable(false).extend({ falseTimeout: 2000 });

		this.showAttachmnetControls = ko.observable(false);

		this.showAttachmnetControlsState = v => Local.set(ClientSideKeyName.MessageAttachmnetControls, !!v);

		this.allowAttachmnetControls = ko.computed(
			() => this.attachmentsActions().length && Settings.capa(Capa.AttachmentsActions)
		);

		this.downloadAsZipAllowed = ko.computed(
			() => this.attachmentsActions().includes('zip') && this.allowAttachmnetControls()
		);

		this.downloadAsZipLoading = ko.observable(false);
		this.downloadAsZipError = ko.observable(false).extend({ falseTimeout: 7000 });

		this.showAttachmnetControls.subscribe(v => this.message()
			&& this.message().attachments().forEach(item => item && item.checked(!!v))
		);

		this.lastReplyAction_ = ko.observable('');
		this.lastReplyAction = ko.computed({
			read: this.lastReplyAction_,
			write: value => this.lastReplyAction_(
				[ComposeType.Reply, ComposeType.ReplyAll, ComposeType.Forward].includes(value)
					? ComposeType.Reply
					: value
			)
		});

		this.lastReplyAction(Local.get(ClientSideKeyName.LastReplyAction) || ComposeType.Reply);

		this.lastReplyAction_.subscribe(value => Local.set(ClientSideKeyName.LastReplyAction, value));

		this.showFullInfo = ko.observable('1' === Local.get(ClientSideKeyName.MessageHeaderFullInfo));

		this.moreDropdownTrigger = ko.observable(false);
		this.messageDomFocused = ko.observable(false).extend({ rateLimit: 0 });

		this.messageVisibility = ko.computed(() => !this.messageLoadingThrottle() && !!this.message());

		this.message.subscribe(message => (!message) && MessageStore.selectorMessageSelected(null));

		this.canBeRepliedOrForwarded = ko.computed(() => !this.isDraftFolder() && this.messageVisibility());

		// commands
		this.replyCommand = createCommandReplyHelper(ComposeType.Reply);
		this.replyAllCommand = createCommandReplyHelper(ComposeType.ReplyAll);
		this.forwardCommand = createCommandReplyHelper(ComposeType.Forward);
		this.forwardAsAttachmentCommand = createCommandReplyHelper(ComposeType.ForwardAsAttachment);
		this.editAsNewCommand = createCommandReplyHelper(ComposeType.EditAsNew);

		this.deleteCommand = createCommandActionHelper(FolderType.Trash, true);
		this.deleteWithoutMoveCommand = createCommandActionHelper(FolderType.Trash, false);
		this.archiveCommand = createCommandActionHelper(FolderType.Archive, true);
		this.spamCommand = createCommandActionHelper(FolderType.Spam, true);
		this.notSpamCommand = createCommandActionHelper(FolderType.NotSpam, true);

		// viewer

		this.viewBodyTopValue = ko.observable(0);

		this.viewFolder = '';
		this.viewUid = '';
		this.viewHash = '';
		this.viewSubject = ko.observable('');
		this.viewFromShort = ko.observable('');
		this.viewFromDkimData = ko.observable(['none', '']);
		this.viewToShort = ko.observable('');
		this.viewFrom = ko.observable('');
		this.viewTo = ko.observable('');
		this.viewCc = ko.observable('');
		this.viewBcc = ko.observable('');
		this.viewReplyTo = ko.observable('');
		this.viewTimeStamp = ko.observable(0);
		this.viewSize = ko.observable('');
		this.viewLineAsCss = ko.observable('');
		this.viewViewLink = ko.observable('');
		this.viewUnsubscribeLink = ko.observable('');
		this.viewDownloadLink = ko.observable('');
		this.viewUserPic = ko.observable(DATA_IMAGE_USER_DOT_PIC);
		this.viewUserPicVisible = ko.observable(false);
		this.viewIsImportant = ko.observable(false);
		this.viewIsFlagged = ko.observable(false);

		this.viewFromDkimVisibility = ko.computed(() => 'none' !== this.viewFromDkimData()[0]);

		this.viewFromDkimStatusIconClass = ko.computed(() => {
			switch (this.viewFromDkimData()[0]) {
				case 'none':
					return 'icon-none iconcolor-display-none';
				case 'pass':
					return 'icon-ok iconcolor-green';
				default:
					return 'icon-warning-alt iconcolor-red';
			}
		});

		this.viewFromDkimStatusTitle = ko.computed(() => {
			const status = this.viewFromDkimData();
			if (Array.isNotEmpty(status)) {
				if (status[0] && status[1]) {
					return status[1];
				} else if (status[0]) {
					return 'DKIM: ' + status[0];
				}
			}

			return '';
		});

		this.messageActiveDom.subscribe(dom => this.bodyBackgroundColor(this.detectDomBackgroundColor(dom)), this);

		this.message.subscribe((message) => {
			this.messageActiveDom(null);

			if (message) {
				this.showAttachmnetControls(false);
				if (Local.get(ClientSideKeyName.MessageAttachmnetControls)) {
					setTimeout(() => {
						this.showAttachmnetControls(true);
					}, 50);
				}

				if (this.viewHash !== message.hash) {
					this.scrollMessageToTop();
				}

				this.viewFolder = message.folderFullNameRaw;
				this.viewUid = message.uid;
				this.viewHash = message.hash;
				this.viewSubject(message.subject());
				this.viewFromShort(message.fromToLine(true, true));
				this.viewFromDkimData(message.fromDkimData());
				this.viewToShort(message.toToLine(true, true));
				this.viewFrom(message.fromToLine(false));
				this.viewTo(message.toToLine(false));
				this.viewCc(message.ccToLine(false));
				this.viewBcc(message.bccToLine(false));
				this.viewReplyTo(message.replyToToLine(false));
				this.viewTimeStamp(message.dateTimeStampInUTC());
				this.viewSize(message.friendlySize());
				this.viewLineAsCss(message.lineAsCss());
				this.viewViewLink(message.viewLink());
				this.viewUnsubscribeLink(message.getFirstUnsubsribeLink());
				this.viewDownloadLink(message.downloadLink());
				this.viewIsImportant(message.isImportant());
				this.viewIsFlagged(message.flagged());

				lastEmail = message.fromAsSingleEmail();
				getUserPic(lastEmail, (pic, email) => {
					if (pic !== this.viewUserPic() && lastEmail === email) {
						this.viewUserPicVisible(false);
						this.viewUserPic(DATA_IMAGE_USER_DOT_PIC);
						if (pic) {
							this.viewUserPicVisible(true);
							this.viewUserPic(pic);
						}
					}
				});
			} else {
				this.viewFolder = '';
				this.viewUid = '';
				this.viewHash = '';

				this.scrollMessageToTop();
			}
		});

		this.message.viewTrigger.subscribe(() => {
			const message = this.message();
			message ? this.viewIsFlagged(message.flagged()) : this.viewIsFlagged(false);
		});

		this.fullScreenMode.subscribe(value => $htmlCL.toggle('rl-message-fullscreen', value));

		this.messageFocused = ko.computed(() => Focused.MessageView === AppStore.focusedState());

		this.messageListAndMessageViewLoading = ko.computed(
			() => MessageStore.messageListCompleteLoadingThrottle() || MessageStore.messageLoadingThrottle()
		);

		addEventListener('mailbox.message-view.toggle-full-screen', () => this.toggleFullScreen());

		this.attachmentPreview = this.attachmentPreview.bind(this);
	}

	@command()
	closeMessageCommand() {
		MessageStore.message(null);
	}

	@command((self) => self.messageVisibility())
	messageVisibilityCommand() {} // eslint-disable-line no-empty-function

	@command((self) => self.messageVisibility())
	messageEditCommand() {
		this.editMessage();
	}

	@command((self) => !self.messageListAndMessageViewLoading())
	goUpCommand() {
		dispatchEvent(new CustomEvent('mailbox.message-list.selector.go-up',
			{detail:Layout.NoPreview === this.layout() ? !!this.message() : true}
		));
	}

	@command((self) => !self.messageListAndMessageViewLoading())
	goDownCommand() {
		dispatchEvent(new CustomEvent('mailbox.message-list.selector.go-up',
			{detail:Layout.NoPreview === this.layout() ? !!this.message() : true}
		));
	}

	detectDomBackgroundColor(dom) {
		let color = '';

		if (dom) {
			let limit = 5,
				aC = dom;
			while (!color && aC && limit--) {
				let children = aC.children;
				if (!children || 1 !== children.length || !children[0].matches('table,div,center')) break;

				aC = children[0];
				color = aC.style.backgroundColor || '';
				if (!aC.matches('table')) {
					color = isTransparent(color) ? '' : color;
				}
			}

			color = isTransparent(color) ? '' : color;
		}

		return color;
	}

	fullScreen() {
		this.fullScreenMode(true);
	}

	unFullScreen() {
		this.fullScreenMode(false);
	}

	toggleFullScreen() {
		removeSelection();

		this.fullScreenMode(!this.fullScreenMode());
	}

	/**
	 * @param {string} sType
	 * @returns {void}
	 */
	replyOrforward(sType) {
		Settings.capa(Capa.Composer) && showScreenPopup(require('View/Popup/Compose'), [sType, MessageStore.message()]);
	}

	checkHeaderHeight() {
		this.oHeaderDom && this.viewBodyTopValue(this.message() ? this.oHeaderDom.offsetHeight : 0);
	}

	//  displayMailToPopup(sMailToUrl) {
	//		sMailToUrl = sMailToUrl.replace(/\?.+$/, '');
	//
	//		var
	//			sResult = '',
	//			aTo = [],
	//			EmailModel = require('Model/Email').default,
	//			fParseEmailLine = function(sLine) {
	//				return sLine ? [decodeURIComponent(sLine)].map(sItem => {
	//						var oEmailModel = new EmailModel();
	//						oEmailModel.parse(sItem);
	//						return oEmailModel.email ? oEmailModel : null;
	//					}).filter(value => !!value) : null;
	//			}
	//		;
	//
	//		aTo = fParseEmailLine(sMailToUrl);
	//		sResult = aTo && aTo[0] ? aTo[0].email : '';
	//
	//		return sResult;
	//	}

	/**
	 * @param {Object} oAttachment
	 * @returns {boolean}
	 */
	attachmentPreview(attachment) {
		if (attachment && attachment.isImage() && !attachment.isLinked && this.message() && this.message().attachments()) {
			let index = 0,
				listIndex = 0;

			const div = jQuery('<div>'),
				dynamicEls = this.message().attachments().map(item => {
					if (item && !item.isLinked && item.isImage()) {
						if (item === attachment) {
							index = listIndex;
						}

						listIndex += 1;

						return {
							src: item.linkPreview(),
							thumb: item.linkThumbnail(),
							subHtml: item.fileName,
							downloadUrl: item.linkPreview()
						};
					}

					return null;
				}).filter(value => !!value);

			if (dynamicEls.length) {
				div.on('onBeforeOpen.lg', () => {
					useKeyboardShortcuts(false);
					removeInFocus(true);
				});

				div.on('onCloseAfter.lg', () => useKeyboardShortcuts(true));

				div.lightGallery({
					dynamic: true,
					loadYoutubeThumbnail: false,
					loadVimeoThumbnail: false,
					thumbWidth: 80,
					thumbContHeight: 95,
					showThumbByDefault: false,
					mode: 'lg-lollipop', // 'lg-slide',
					index: index,
					dynamicEl: dynamicEls
				});
			}

			return false;
		}

		return true;
	}

	onBuild(dom) {
		this.fullScreenMode.subscribe(value => value && this.message() && AppStore.focusedState(Focused.MessageView));

		this.showFullInfo.subscribe(value => Local.set(ClientSideKeyName.MessageHeaderFullInfo, value ? '1' : '0'));

		this.oHeaderDom = dom.querySelector('.messageItemHeader');
		if (this.oHeaderDom) {
			if (!this.resizeObserver) {
				this.resizeObserver = new ResizeObserver(this.checkHeaderHeight.throttle(50).bind(this));
			}
			this.resizeObserver.observe(this.oHeaderDom);
		} else if (this.resizeObserver) {
			this.resizeObserver.disconnect();
		}

		const eqs = (ev, s) => ev.target.closestWithin(s, dom);
		dom.addEventListener('click', event => {
			this.mobile && leftPanelDisabled(true);

			let el = eqs(event, 'a');
			if (el) {
				return !(
					!!event &&
					3 !== event.which &&
					mailToHelper(
						el.href,
						Settings.capa(Capa.Composer) ? require('View/Popup/Compose') : null
					)
				);
			}

			if (eqs(event, '.attachmentsPlace .attachmentIconParent')) {
				event.stopPropagation();
			}

			el = eqs(event, '.attachmentsPlace .showPreplay');
			if (el) {
				event.stopPropagation();
				const attachment = ko.dataFor(el); // eslint-disable-line no-invalid-this
				if (attachment && Audio.supported) {
					switch (true) {
						case Audio.supportedMp3 && attachment.isMp3():
							Audio.playMp3(attachment.linkDownload(), attachment.fileName);
							break;
						case Audio.supportedOgg && attachment.isOgg():
							Audio.playOgg(attachment.linkDownload(), attachment.fileName);
							break;
						case Audio.supportedWav && attachment.isWav():
							Audio.playWav(attachment.linkDownload(), attachment.fileName);
							break;
						// no default
					}
				}
			}

			el = eqs(event, '.attachmentsPlace .attachmentItem .attachmentNameParent');
			if (el) {
				const attachment = ko.dataFor(el);
				attachment && attachment.download && getApp().download(attachment.linkDownload());
			}

			if (eqs(event, '.messageItemHeader .subjectParent .flagParent')) {
				// eslint-disable-line prefer-arrow-callback
				const message = this.message();
				message && getApp().messageListAction(
					message.folderFullNameRaw,
					message.flagged() ? MessageSetAction.UnsetFlag : MessageSetAction.SetFlag,
					[message]
				);
			}

			el = eqs(event, '.thread-list .flagParent');
			if (el) {
				// eslint-disable-line prefer-arrow-callback
				const message = ko.dataFor(el); // eslint-disable-line no-invalid-this
				message && message.folder && message.uid &&  getApp().messageListAction(
					message.folder,
					message.flagged() ? MessageSetAction.UnsetFlag : MessageSetAction.SetFlag,
					[message]
				);

				this.threadsDropdownTrigger(true);

				return false;
			}
		});

		AppStore.focusedState.subscribe((value) => {
			if (Focused.MessageView !== value) {
				this.scrollMessageToTop();
				this.scrollMessageToLeft();
			}
		});

		keyScopeReal.subscribe(value => this.messageDomFocused(KeyState.MessageView === value && !inFocus()));

		this.oMessageScrollerDom = dom.querySelector('.messageItem');

		this.initShortcuts();
	}

	/**
	 * @returns {boolean}
	 */
	escShortcuts() {
		if (this.viewModelVisibility() && this.message()) {
			const preview = Layout.NoPreview !== this.layout();
			if (this.fullScreenMode()) {
				this.fullScreenMode(false);

				if (preview) {
					AppStore.focusedState(Focused.MessageList);
				}
			} else if (!preview) {
				this.message(null);
			} else {
				AppStore.focusedState(Focused.MessageList);
			}

			return false;
		}

		return true;
	}

	initShortcuts() {
		// exit fullscreen, back
		key('esc, backspace', KeyState.MessageView, this.escShortcuts.bind(this));

		// fullscreen
		key('enter', KeyState.MessageView, () => {
			this.toggleFullScreen();
			return false;
		});

		// reply
		key('r', [KeyState.MessageList, KeyState.MessageView], () => {
			if (MessageStore.message()) {
				this.replyCommand();
				return false;
			}

			return true;
		});

		// replaAll
		key('a', [KeyState.MessageList, KeyState.MessageView], () => {
			if (MessageStore.message()) {
				this.replyAllCommand();
				return false;
			}

			return true;
		});

		// forward
		key('f', [KeyState.MessageList, KeyState.MessageView], () => {
			if (MessageStore.message()) {
				this.forwardCommand();
				return false;
			}

			return true;
		});

		// message information
		key('ctrl+i, command+i', [KeyState.MessageList, KeyState.MessageView], () => {
			if (MessageStore.message()) {
				this.showFullInfo(!this.showFullInfo());
			}
			return false;
		});

		// toggle message blockquotes
		key('b', [KeyState.MessageList, KeyState.MessageView], () => {
			const message = MessageStore.message();
			if (message && message.body) {
				message.body.querySelectorAll('.rlBlockquoteSwitcher').forEach(node => node.click());
				return false;
			}
			return true;
		});

		key('ctrl+up, command+up, ctrl+left, command+left', [KeyState.MessageList, KeyState.MessageView], () => {
			this.goUpCommand();
			return false;
		});

		key('ctrl+down, command+down, ctrl+right, command+right', [KeyState.MessageList, KeyState.MessageView], () => {
			this.goDownCommand();
			return false;
		});

		// print
		key('ctrl+p, command+p', [KeyState.MessageView, KeyState.MessageList], () => {
			if (this.message()) {
				this.message().printMessage();
			}

			return false;
		});

		// delete
		key('delete, shift+delete', KeyState.MessageView, (event, handler) => {
			if (event) {
				if (handler && 'shift+delete' === handler.shortcut) {
					this.deleteWithoutMoveCommand();
				} else {
					this.deleteCommand();
				}

				return false;
			}

			return true;
		});

		// change focused state
		key('tab, shift+tab, left', KeyState.MessageView, (event, handler) => {
			if (!this.fullScreenMode() && this.message() && Layout.NoPreview !== this.layout()) {
				if (event && handler && 'left' === handler.shortcut) {
					if (this.oMessageScrollerDom && 0 < this.oMessageScrollerDom.scrollLeft) {
						return true;
					}

					AppStore.focusedState(Focused.MessageList);
				} else {
					AppStore.focusedState(Focused.MessageList);
				}
			} else if (
				this.message() &&
				Layout.NoPreview === this.layout() &&
				event &&
				handler &&
				'left' === handler.shortcut
			) {
				return true;
			}

			return false;
		});
	}

	/**
	 * @returns {boolean}
	 */
	isDraftFolder() {
		return MessageStore.message() && FolderStore.draftFolder() === MessageStore.message().folderFullNameRaw;
	}

	/**
	 * @returns {boolean}
	 */
	isSentFolder() {
		return MessageStore.message() && FolderStore.sentFolder() === MessageStore.message().folderFullNameRaw;
	}

	/**
	 * @returns {boolean}
	 */
	isSpamFolder() {
		return MessageStore.message() && FolderStore.spamFolder() === MessageStore.message().folderFullNameRaw;
	}

	/**
	 * @returns {boolean}
	 */
	isSpamDisabled() {
		return MessageStore.message() && FolderStore.spamFolder() === UNUSED_OPTION_VALUE;
	}

	/**
	 * @returns {boolean}
	 */
	isArchiveFolder() {
		return MessageStore.message() && FolderStore.archiveFolder() === MessageStore.message().folderFullNameRaw;
	}

	/**
	 * @returns {boolean}
	 */
	isArchiveDisabled() {
		return MessageStore.message() && FolderStore.archiveFolder() === UNUSED_OPTION_VALUE;
	}

	/**
	 * @returns {boolean}
	 */
	isDraftOrSentFolder() {
		return this.isDraftFolder() || this.isSentFolder();
	}

	composeClick() {
		if (Settings.capa(Capa.Composer)) {
			showScreenPopup(require('View/Popup/Compose'));
		}
	}

	editMessage() {
		if (Settings.capa(Capa.Composer) && MessageStore.message()) {
			showScreenPopup(require('View/Popup/Compose'), [ComposeType.Draft, MessageStore.message()]);
		}
	}

	scrollMessageToTop() {
		if (this.oMessageScrollerDom) {
			if (50 < this.oMessageScrollerDom.scrollTop) {
				this.oMessageScrollerDom.scrollTop = 50;
			} else {
				this.oMessageScrollerDom.scrollTop = 0;
			}
		}
	}

	scrollMessageToLeft() {
		if (this.oMessageScrollerDom) {
			this.oMessageScrollerDom.scrollLeft = 0;
		}
	}

	getAttachmentsHashes() {
		const atts = this.message() ? this.message().attachments() : [];
		return atts.map(item => (item && !item.isLinked && item.checked() ? item.download : '')).filter(value => !!value);
	}

	downloadAsZip() {
		const hashes = this.getAttachmentsHashes();
		if (hashes.length) {
			Remote.attachmentsActions('Zip', hashes, this.downloadAsZipLoading)
				.then((result) => {
					if (result && result.Result && result.Result.Files && result.Result.Files[0] && result.Result.Files[0].Hash) {
						getApp().download(attachmentDownload(result.Result.Files[0].Hash));
					} else {
						this.downloadAsZipError(true);
					}
				})
				.catch(() => {
					this.downloadAsZipError(true);
				});
		} else {
			this.highlightUnselectedAttachments(true);
		}
	}

	/**
	 * @param {MessageModel} oMessage
	 * @returns {void}
	 */
	showImages(message) {
		if (message && message.showExternalImages) {
			message.showExternalImages();
		}
	}

	/**
	 * @returns {string}
	 */
	printableCheckedMessageCount() {
		const cnt = this.messageListCheckedOrSelectedUidsWithSubMails().length;
		return 0 < cnt ? (100 > cnt ? cnt : '99+') : ''; // eslint-disable-line no-magic-numbers
	}

	/**
	 * @param {MessageModel} oMessage
	 * @returns {void}
	 */
	readReceipt(oMessage) {
		if (oMessage && oMessage.readReceipt()) {
			Remote.sendReadReceiptMessage(
				()=>{},
				oMessage.folderFullNameRaw,
				oMessage.uid,
				oMessage.readReceipt(),
				i18n('READ_RECEIPT/SUBJECT', { 'SUBJECT': oMessage.subject() }),
				i18n('READ_RECEIPT/BODY', { 'READ-RECEIPT': AccountStore.email() })
			);

			oMessage.isReadReceipt(true);

			storeMessageFlagsToCache(oMessage);

			getApp().reloadFlagsCurrentMessageListAndMessageFromCache();
		}
	}
}

export { MessageViewMailBoxUserView, MessageViewMailBoxUserView as default };