812 lines
25 KiB
JavaScript
812 lines
25 KiB
JavaScript
const $ = query => document.getElementById(query);
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const $$ = query => document.body.querySelector(query);
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const isURL = text => /^((https?:\/\/|www)[^\s]+)/g.test(text.toLowerCase());
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window.isDownloadSupported = (typeof document.createElement('a').download !== 'undefined');
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window.isProductionEnvironment = !window.location.host.startsWith('localhost');
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window.iOS = /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;
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window.pasteMode = {};
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window.pasteMode.activated = false;
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// set display name
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Events.on('display-name', e => {
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const me = e.detail.message;
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const $displayName = $('displayName')
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$displayName.textContent = 'You are known as ' + me.displayName;
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$displayName.title = me.deviceName;
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});
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class PeersUI {
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constructor() {
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Events.on('peer-joined', e => this._onPeerJoined(e.detail));
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Events.on('peer-left', e => this._onPeerLeft(e.detail));
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Events.on('peer-connected', e => this._onPeerConnected(e.detail));
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Events.on('peer-disconnected', e => this._onPeerDisconnected(e.detail));
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Events.on('peers', e => this._onPeers(e.detail));
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Events.on('file-progress', e => this._onFileProgress(e.detail));
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Events.on('paste', e => this._onPaste(e));
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Events.on('ws-disconnect', _ => this._clearPeers());
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this.peers = {};
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}
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_onPeerJoined(peer) {
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if (this.peers[peer.id]) return; // peer already exists
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this.peers[peer.id] = peer;
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}
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_onPeerConnected(peerId) {
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if(this.peers[peerId])
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new PeerUI(this.peers[peerId]);
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}
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_onPeers(peers) {
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this._clearPeers();
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peers.forEach(peer => this._onPeerJoined(peer));
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}
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_onPeerDisconnected(peerId) {
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const $peer = $(peerId);
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if (!$peer) return;
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$peer.remove();
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setTimeout(e => window.animateBackground(true), 1750); // Start animation again
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}
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_onPeerLeft(peerId) {
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this._onPeerDisconnected(peerId);
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delete this.peers[peerId];
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}
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_onFileProgress(progress) {
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const peerId = progress.sender || progress.recipient;
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const $peer = $(peerId);
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if (!$peer) return;
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$peer.ui.setProgress(progress.progress);
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}
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_clearPeers() {
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const $peers = $$('x-peers').innerHTML = '';
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Object.keys(this.peers).forEach(peerId => delete this.peers[peerId]);
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setTimeout(e => window.animateBackground(true), 1750); // Start animation again
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}
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_getPeers() {
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let peers = []
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const peersNodes = document.querySelectorAll('x-peer');
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peersNodes.forEach(function(peersNode) {
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peers.push({
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id: peersNode.id,
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name: peersNode.name,
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rtcSupported: peersNode.rtcSupported
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})
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});
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return peers;
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}
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_onPaste(e) {
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if(document.querySelectorAll('x-dialog[show]').length === 0) {
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// prevent send on paste when dialog is open
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e.preventDefault()
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const files = e.clipboardData.files;
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const text = e.clipboardData.getData("Text");
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if (files.length === 0 && text === 0) return;
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this._activatePasteMode(files, text);
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}
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}
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_activatePasteMode(files, text) {
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if (!window.pasteMode.activated) {
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let descriptor;
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let noPeersMessage;
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if (files.length === 1) {
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descriptor = files[0].name;
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noPeersMessage = `Open Snapdrop on other devices to send <i>${descriptor}</i> directly`;
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} else if (files.length > 1) {
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console.debug(files);
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descriptor = `${files.length} files`;
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noPeersMessage = `Open Snapdrop on other devices to send ${descriptor} directly`;
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} else if (text.length > 0) {
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descriptor = `pasted text`;
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noPeersMessage = `Open Snapdrop on other devices to send ${descriptor} directly`;
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}
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const xInstructions = document.querySelectorAll('x-instructions')[0];
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xInstructions.setAttribute('desktop', `Click to send ${descriptor} directly`);
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xInstructions.setAttribute('mobile', `Tap to send ${descriptor} directly`);
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const xNoPeers = document.querySelectorAll('x-no-peers')[0];
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xNoPeers.getElementsByTagName('h2')[0].innerHTML = noPeersMessage;
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const _callback = (e) => this._sendClipboardData(e, files, text);
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Events.on('paste-pointerdown', _callback);
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const _deactivateCallback = (e) => this._deactivatePasteMode(e, _callback)
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const cancelPasteModeBtn = document.getElementById('cancelPasteModeBtn');
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cancelPasteModeBtn.addEventListener('click', this._cancelPasteMode)
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cancelPasteModeBtn.removeAttribute('hidden');
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Events.on('notify-user', _deactivateCallback);
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window.pasteMode.descriptor = descriptor;
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window.pasteMode.activated = true;
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console.log('Paste mode activated.')
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this._onPeers(this._getPeers());
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}
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}
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_cancelPasteMode() {
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Events.fire('notify-user', 'Paste Mode canceled');
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}
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_deactivatePasteMode(e, _callback) {
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if (window.pasteMode.activated && ['File transfer completed.', 'Message transfer completed.', 'Paste Mode canceled'].includes(e.detail)) {
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window.pasteMode.descriptor = undefined;
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window.pasteMode.activated = false;
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console.log('Paste mode deactivated.')
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Events.off('paste-pointerdown', _callback);
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const xInstructions = document.querySelectorAll('x-instructions')[0];
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xInstructions.setAttribute('desktop', 'Click to send files or right click to send a message');
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xInstructions.setAttribute('mobile', 'Tap to send files or long tap to send a message');
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const xNoPeers = document.querySelectorAll('x-no-peers')[0];
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xNoPeers.getElementsByTagName('h2')[0].innerHTML = 'Open Snapdrop on other devices to send files';
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const cancelPasteModeBtn = document.getElementById('cancelPasteModeBtn');
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cancelPasteModeBtn.removeEventListener('click', this._cancelPasteMode);
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cancelPasteModeBtn.setAttribute('hidden', "");
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this._onPeers(this._getPeers());
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}
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}
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_sendClipboardData(e, files, text) {
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// send the pasted file/text content
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const peerId = e.detail.peerId;
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if (files.length > 0) {
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Events.fire('files-selected', {
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files: files,
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to: peerId
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});
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} else if (text.length > 0) {
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Events.fire('send-text', {
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text: text,
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to: peerId
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});
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}
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}
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}
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class PeerUI {
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html() {
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let title;
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let textInput;
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if (window.pasteMode.activated) {
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title = `Click to send ${window.pasteMode.descriptor} directly`;
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textInput = '';
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} else {
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title = 'Click to send files or right click to send a message';
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textInput = '<input type="file" multiple>';
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}
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return `
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<label class="column center" title="${title}">
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${textInput}
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<x-icon shadow="1">
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<svg class="icon"><use xlink:href="#"/></svg>
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</x-icon>
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<div class="progress">
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<div class="circle"></div>
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<div class="circle right"></div>
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</div>
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<div class="name font-subheading"></div>
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<div class="device-name font-body2"></div>
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<div class="status font-body2"></div>
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</label>`;
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}
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constructor(peer) {
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this._peer = peer;
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this._initDom();
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this._bindListeners(this.$el);
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$$('x-peers').appendChild(this.$el);
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setTimeout(e => window.animateBackground(false), 1750); // Stop animation
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}
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_initDom() {
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const el = document.createElement('x-peer');
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el.id = this._peer.id;
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el.name = this._peer.name;
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el.rtcSupported = this._peer.rtcSupported;
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el.innerHTML = this.html();
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el.ui = this;
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el.querySelector('svg use').setAttribute('xlink:href', this._icon());
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el.querySelector('.name').textContent = this._displayName();
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el.querySelector('.device-name').textContent = this._deviceName();
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this.$el = el;
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this.$progress = el.querySelector('.progress');
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}
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_bindListeners(el) {
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if(!window.pasteMode.activated) {
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el.querySelector('input').addEventListener('change', e => this._onFilesSelected(e));
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el.addEventListener('drop', e => this._onDrop(e));
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el.addEventListener('dragend', e => this._onDragEnd(e));
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el.addEventListener('dragleave', e => this._onDragEnd(e));
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el.addEventListener('dragover', e => this._onDragOver(e));
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el.addEventListener('contextmenu', e => this._onRightClick(e));
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el.addEventListener('touchstart', e => this._onTouchStart(e));
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el.addEventListener('touchend', e => this._onTouchEnd(e));
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// prevent browser's default file drop behavior
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Events.on('dragover', e => e.preventDefault());
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Events.on('drop', e => e.preventDefault());
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} else {
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el.addEventListener('pointerdown', (e) => this._onPointerDown(e));
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}
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}
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_onPointerDown(e) {
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// Prevents triggering of event twice on touch devices
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e.stopPropagation();
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e.preventDefault();
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Events.fire('paste-pointerdown', {
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peerId: this._peer.id
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});
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}
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_displayName() {
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return this._peer.name.displayName;
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}
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_deviceName() {
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return this._peer.name.deviceName;
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}
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_icon() {
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const device = this._peer.name.device || this._peer.name;
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if (device.type === 'mobile') {
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return '#phone-iphone';
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}
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if (device.type === 'tablet') {
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return '#tablet-mac';
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}
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return '#desktop-mac';
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}
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_onFilesSelected(e) {
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const $input = e.target;
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const files = $input.files;
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Events.fire('files-selected', {
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files: files,
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to: this._peer.id
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});
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$input.value = null; // reset input
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}
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setProgress(progress) {
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if (progress > 0) {
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this.$el.setAttribute('transfer', '1');
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}
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if (progress > 0.5) {
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this.$progress.classList.add('over50');
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} else {
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this.$progress.classList.remove('over50');
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}
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const degrees = `rotate(${360 * progress}deg)`;
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this.$progress.style.setProperty('--progress', degrees);
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if (progress >= 1) {
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this.setProgress(0);
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this.$el.removeAttribute('transfer');
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}
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}
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_onDrop(e) {
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e.preventDefault();
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const files = e.dataTransfer.files;
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Events.fire('files-selected', {
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files: files,
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to: this._peer.id
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});
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this._onDragEnd();
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}
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_onDragOver() {
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this.$el.setAttribute('drop', 1);
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}
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_onDragEnd() {
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this.$el.removeAttribute('drop');
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}
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_onRightClick(e) {
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e.preventDefault();
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Events.fire('text-recipient', this._peer.id);
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}
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_onTouchStart(e) {
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this._touchStart = Date.now();
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this._touchTimer = setTimeout(_ => this._onTouchEnd(), 610);
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}
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_onTouchEnd(e) {
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if (Date.now() - this._touchStart < 500) {
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clearTimeout(this._touchTimer);
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} else { // this was a long tap
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if (e) e.preventDefault();
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Events.fire('text-recipient', this._peer.id);
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}
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}
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}
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class Dialog {
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constructor(id) {
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this.$el = $(id);
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this.$el.querySelectorAll('[close]').forEach(el => el.addEventListener('click', e => this.hide()))
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this.$autoFocus = this.$el.querySelector('[autofocus]');
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}
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show() {
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this.$el.setAttribute('show', 1);
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if (this.$autoFocus) this.$autoFocus.focus();
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}
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hide() {
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this.$el.removeAttribute('show');
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document.activeElement.blur();
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window.blur();
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}
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}
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class ReceiveDialog extends Dialog {
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constructor() {
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super('receiveDialog');
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Events.on('file-received', e => {
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this._nextFile(e.detail);
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window.blop.play();
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});
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this._filesQueue = [];
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}
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_nextFile(nextFile) {
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if (nextFile) this._filesQueue.push(nextFile);
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if (this._busy) return;
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this._busy = true;
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const file = this._filesQueue.shift();
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this._displayFile(file);
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}
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_dequeueFile() {
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if (!this._filesQueue.length) { // nothing to do
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this._busy = false;
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return;
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}
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// dequeue next file
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setTimeout(_ => {
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this._busy = false;
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this._nextFile();
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}, 300);
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}
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_displayFile(file) {
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const $a = this.$el.querySelector('#download');
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const url = URL.createObjectURL(file.blob);
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$a.href = url;
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$a.download = file.name;
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if(this._autoDownload()){
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$a.click()
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return
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}
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if(file.mime.split('/')[0] === 'image'){
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console.log('the file is image');
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this.$el.querySelector('.preview').style.visibility = 'inherit';
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this.$el.querySelector("#img-preview").src = url;
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}
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this.$el.querySelector('#fileName').textContent = file.name;
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this.$el.querySelector('#fileSize').textContent = this._formatFileSize(file.size);
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this.show();
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if (window.isDownloadSupported) return;
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// fallback for iOS
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$a.target = '_blank';
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const reader = new FileReader();
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reader.onload = e => $a.href = reader.result;
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reader.readAsDataURL(file.blob);
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}
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_formatFileSize(bytes) {
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if (bytes >= 1e9) {
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return (Math.round(bytes / 1e8) / 10) + ' GB';
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} else if (bytes >= 1e6) {
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return (Math.round(bytes / 1e5) / 10) + ' MB';
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} else if (bytes > 1000) {
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return Math.round(bytes / 1000) + ' KB';
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} else {
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return bytes + ' Bytes';
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}
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}
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hide() {
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this.$el.querySelector('.preview').style.visibility = 'hidden';
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this.$el.querySelector("#img-preview").src = "";
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super.hide();
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this._dequeueFile();
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}
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_autoDownload(){
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return !this.$el.querySelector('#autoDownload').checked
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}
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}
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class SendTextDialog extends Dialog {
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constructor() {
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super('sendTextDialog');
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Events.on('text-recipient', e => this._onRecipient(e.detail))
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this.$text = this.$el.querySelector('#textInput');
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const button = this.$el.querySelector('form');
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button.addEventListener('submit', e => this._send(e));
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Events.on("keydown", e => this._onKeyDown(e))
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}
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async _onKeyDown(e) {
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if (this.$el.attributes["show"] && e.code === "Escape") {
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this.hide();
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}
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}
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_onRecipient(recipient) {
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this._recipient = recipient;
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this._handleShareTargetText();
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this.show();
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const range = document.createRange();
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const sel = window.getSelection();
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range.selectNodeContents(this.$text);
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sel.removeAllRanges();
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sel.addRange(range);
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}
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_handleShareTargetText() {
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if (!window.shareTargetText) return;
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this.$text.textContent = window.shareTargetText;
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window.shareTargetText = '';
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}
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_send(e) {
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e.preventDefault();
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Events.fire('send-text', {
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to: this._recipient,
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text: this.$text.innerText
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});
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}
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}
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class ReceiveTextDialog extends Dialog {
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constructor() {
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super('receiveTextDialog');
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Events.on('text-received', e => this._onText(e.detail))
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this.$text = this.$el.querySelector('#text');
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const copy = this.$el.querySelector('#copy');
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copy.addEventListener('click', _ => this._onCopy());
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Events.on("keydown", e => this._onKeyDown(e))
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}
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async _onKeyDown(e) {
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if (this.$el.attributes["show"] && e.code === "KeyC" && (e.ctrlKey || e.metaKey)) {
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await this._onCopy()
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this.hide();
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}
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}
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_onText(e) {
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this.$text.innerHTML = '';
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const text = e.text;
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if (isURL(text)) {
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const $a = document.createElement('a');
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$a.href = text;
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$a.target = '_blank';
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$a.textContent = text;
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this.$text.appendChild($a);
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} else {
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this.$text.textContent = text;
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}
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this.show();
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window.blop.play();
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}
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async _onCopy() {
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await navigator.clipboard.writeText(this.$text.textContent);
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Events.fire('notify-user', 'Copied to clipboard');
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}
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}
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class Toast extends Dialog {
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constructor() {
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super('toast');
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Events.on('notify-user', e => this._onNotifiy(e.detail));
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|
}
|
|
|
|
_onNotifiy(message) {
|
|
this.$el.textContent = message;
|
|
this.show();
|
|
setTimeout(_ => this.hide(), 3000);
|
|
}
|
|
}
|
|
|
|
|
|
class Notifications {
|
|
|
|
constructor() {
|
|
// Check if the browser supports notifications
|
|
if (!('Notification' in window)) return;
|
|
|
|
// Check whether notification permissions have already been granted
|
|
if (Notification.permission !== 'granted') {
|
|
this.$button = $('notification');
|
|
this.$button.removeAttribute('hidden');
|
|
this.$button.addEventListener('click', e => this._requestPermission());
|
|
}
|
|
Events.on('text-received', e => this._messageNotification(e.detail.text));
|
|
Events.on('file-received', e => this._downloadNotification(e.detail.name));
|
|
}
|
|
|
|
_requestPermission() {
|
|
Notification.requestPermission(permission => {
|
|
if (permission !== 'granted') {
|
|
Events.fire('notify-user', Notifications.PERMISSION_ERROR || 'Error');
|
|
return;
|
|
}
|
|
this._notify('Even more snappy sharing!');
|
|
this.$button.setAttribute('hidden', 1);
|
|
});
|
|
}
|
|
|
|
_notify(message, body) {
|
|
const config = {
|
|
body: body,
|
|
icon: '/images/logo_transparent_128x128.png',
|
|
}
|
|
let notification;
|
|
try {
|
|
notification = new Notification(message, config);
|
|
} catch (e) {
|
|
// Android doesn't support "new Notification" if service worker is installed
|
|
if (!serviceWorker || !serviceWorker.showNotification) return;
|
|
notification = serviceWorker.showNotification(message, config);
|
|
}
|
|
|
|
// Notification is persistent on Android. We have to close it manually
|
|
const visibilitychangeHandler = () => {
|
|
if (document.visibilityState === 'visible') {
|
|
notification.close();
|
|
Events.off('visibilitychange', visibilitychangeHandler);
|
|
}
|
|
};
|
|
Events.on('visibilitychange', visibilitychangeHandler);
|
|
|
|
return notification;
|
|
}
|
|
|
|
_messageNotification(message) {
|
|
if (document.visibilityState !== 'visible') {
|
|
if (isURL(message)) {
|
|
const notification = this._notify(message, 'Click to open link');
|
|
this._bind(notification, e => window.open(message, '_blank', null, true));
|
|
} else {
|
|
const notification = this._notify(message, 'Click to copy text');
|
|
this._bind(notification, e => this._copyText(message, notification));
|
|
}
|
|
}
|
|
}
|
|
|
|
_downloadNotification(message) {
|
|
if (document.visibilityState !== 'visible') {
|
|
const notification = this._notify(message, 'Click to download');
|
|
if (!window.isDownloadSupported) return;
|
|
this._bind(notification, e => this._download(notification));
|
|
}
|
|
}
|
|
|
|
_download(notification) {
|
|
document.querySelector('x-dialog [download]').click();
|
|
notification.close();
|
|
}
|
|
|
|
_copyText(message, notification) {
|
|
notification.close();
|
|
if (!navigator.clipboard.writeText(message)) return;
|
|
this._notify('Copied text to clipboard');
|
|
}
|
|
|
|
_bind(notification, handler) {
|
|
if (notification.then) {
|
|
notification.then(e => serviceWorker.getNotifications().then(notifications => {
|
|
serviceWorker.addEventListener('notificationclick', handler);
|
|
}));
|
|
} else {
|
|
notification.onclick = handler;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
class NetworkStatusUI {
|
|
|
|
constructor() {
|
|
Events.on('offline', _ => this._showOfflineMessage());
|
|
Events.on('online', _ => this._showOnlineMessage());
|
|
Events.on('ws-connected', _ => this._showOnlineMessage());
|
|
Events.on('ws-disconnected', _ => window.animateBackground(false));
|
|
if (!navigator.onLine) this._showOfflineMessage();
|
|
}
|
|
|
|
_showOfflineMessage() {
|
|
Events.fire('notify-user', 'You are offline');
|
|
window.animateBackground(false);
|
|
}
|
|
|
|
_showOnlineMessage() {
|
|
Events.fire('notify-user', 'You are back online');
|
|
window.animateBackground(true);
|
|
}
|
|
}
|
|
|
|
class WebShareTargetUI {
|
|
constructor() {
|
|
const parsedUrl = new URL(window.location);
|
|
const title = parsedUrl.searchParams.get('title');
|
|
const text = parsedUrl.searchParams.get('text');
|
|
const url = parsedUrl.searchParams.get('url');
|
|
|
|
let shareTargetText = title ? title : '';
|
|
shareTargetText += text ? shareTargetText ? ' ' + text : text : '';
|
|
|
|
if(url) shareTargetText = url; // We share only the Link - no text. Because link-only text becomes clickable.
|
|
|
|
if (!shareTargetText) return;
|
|
window.shareTargetText = shareTargetText;
|
|
history.pushState({}, 'URL Rewrite', '/');
|
|
console.log('Shared Target Text:', '"' + shareTargetText + '"');
|
|
}
|
|
}
|
|
|
|
|
|
class Snapdrop {
|
|
constructor() {
|
|
const server = new ServerConnection();
|
|
const peers = new PeersManager(server);
|
|
const peersUI = new PeersUI();
|
|
Events.on('load', e => {
|
|
const receiveDialog = new ReceiveDialog();
|
|
const sendTextDialog = new SendTextDialog();
|
|
const receiveTextDialog = new ReceiveTextDialog();
|
|
const toast = new Toast();
|
|
const notifications = new Notifications();
|
|
const networkStatusUI = new NetworkStatusUI();
|
|
const webShareTargetUI = new WebShareTargetUI();
|
|
});
|
|
}
|
|
}
|
|
|
|
const snapdrop = new Snapdrop();
|
|
|
|
|
|
|
|
if ('serviceWorker' in navigator) {
|
|
navigator.serviceWorker.register('/service-worker.js')
|
|
.then(serviceWorker => {
|
|
console.log('Service Worker registered');
|
|
window.serviceWorker = serviceWorker
|
|
});
|
|
}
|
|
|
|
window.addEventListener('beforeinstallprompt', e => {
|
|
if (window.matchMedia('(display-mode: standalone)').matches) {
|
|
// don't display install banner when installed
|
|
return e.preventDefault();
|
|
} else {
|
|
const btn = document.querySelector('#install')
|
|
btn.hidden = false;
|
|
btn.onclick = _ => e.prompt();
|
|
return e.preventDefault();
|
|
}
|
|
});
|
|
|
|
// Background Animation
|
|
Events.on('load', () => {
|
|
let c = document.createElement('canvas');
|
|
document.body.appendChild(c);
|
|
let style = c.style;
|
|
style.width = '100%';
|
|
style.position = 'absolute';
|
|
style.zIndex = -1;
|
|
style.top = 0;
|
|
style.left = 0;
|
|
let ctx = c.getContext('2d');
|
|
let x0, y0, w, h, dw;
|
|
|
|
function init() {
|
|
w = window.innerWidth;
|
|
h = window.innerHeight;
|
|
c.width = w;
|
|
c.height = h;
|
|
let offset = h > 380 ? 100 : 65;
|
|
offset = h > 800 ? 116 : offset;
|
|
x0 = w / 2;
|
|
y0 = h - offset;
|
|
dw = Math.max(w, h, 1000) / 13;
|
|
drawCircles();
|
|
}
|
|
window.onresize = init;
|
|
|
|
function drawCircle(radius) {
|
|
ctx.beginPath();
|
|
let color = Math.round(255 * (1 - radius / Math.max(w, h)));
|
|
ctx.strokeStyle = 'rgba(' + color + ',' + color + ',' + color + ',0.1)';
|
|
ctx.arc(x0, y0, radius, 0, 2 * Math.PI);
|
|
ctx.stroke();
|
|
ctx.lineWidth = 2;
|
|
}
|
|
|
|
let step = 0;
|
|
|
|
function drawCircles() {
|
|
ctx.clearRect(0, 0, w, h);
|
|
for (let i = 0; i < 8; i++) {
|
|
drawCircle(dw * i + step % dw);
|
|
}
|
|
step += 1;
|
|
}
|
|
|
|
let loading = true;
|
|
|
|
function animate() {
|
|
if (loading || step % dw < dw - 5) {
|
|
requestAnimationFrame(function() {
|
|
drawCircles();
|
|
animate();
|
|
});
|
|
}
|
|
}
|
|
window.animateBackground = function(l) {
|
|
if (!l) {
|
|
loading = false;
|
|
} else if (!loading) {
|
|
loading = true;
|
|
animate();
|
|
}
|
|
};
|
|
init();
|
|
animate();
|
|
});
|
|
|
|
// close About Snapdrop page on Escape
|
|
window.addEventListener("keydown", (e) => {
|
|
if (e.key === "Escape") {
|
|
window.location.hash = '#';
|
|
}
|
|
});
|
|
|
|
Notifications.PERMISSION_ERROR = `
|
|
Notifications permission has been blocked
|
|
as the user has dismissed the permission prompt several times.
|
|
This can be reset in Page Info
|
|
which can be accessed by clicking the lock icon next to the URL.`;
|
|
|
|
document.body.onclick = e => { // safari hack to fix audio
|
|
document.body.onclick = null;
|
|
if (!(/.*Version.*Safari.*/.test(navigator.userAgent))) return;
|
|
blop.play();
|
|
}
|