Squashed commit of the following:

commit 5b7ac6f0f56f3888c01049f08b6b47dbeb3bcfb0
Author: Robin Linus <robin_woll@capira.de>
Date:   Wed Dec 30 18:06:48 2015 +0100

    Clean up about and social links

commit 9c7da37d1e8f58f1c45626289fbab336fc982a0f
Author: Robin Linus <robin_woll@capira.de>
Date:   Wed Dec 30 18:06:35 2015 +0100

    Change Slogan

commit fcea5cfb5c6928acabce44caacc1d75fafdab447
Author: Robin Linus <robin_woll@capira.de>
Date:   Wed Dec 30 18:06:22 2015 +0100

    Add shorturl

commit f09e9e42c30aa7b26df2a5fb00bec653f3ad68e1
Author: Robin Linus <robin_woll@capira.de>
Date:   Wed Dec 30 16:56:55 2015 +0100

    initial

app/elements/buddy-finder/buddy-finder.html

@@ -41,9 +41,18 @@
         
         .explanation {
             @apply(--paper-font-headline);
-            color: #4285f4;
+            color: #4E4E4E;
             text-align: center;
         }
+        
+        .short {
+            @apply(--paper-font-body1);
+            color: #333;
+        }
+        
+        .url {
+            color: #4285f4;
+        }
         </style>
         <div class="buddies">
             <template is="dom-repeat" items="{{buddies}}">
@@ -53,7 +62,8 @@
             </template>
         </div>
         <div hidden$="{{buddies.0}}" class="explanation">
-            Open this page on other devices<br> to send files.
+            Open <span class="url">dropc.at</span> on other devices
+            <br> to send files.
         </div>
         <personal-avatar class="me"></personal-avatar>
     </template>

app/elements/buddy-finder/personal-avatar.html

@@ -26,7 +26,7 @@
         </style>
         <iron-icon icon="chat:wifi-tethering"></iron-icon>
         <div class="paper-font-body1">
-            Snapdrop lets you share instantly with people near by.
+            The easiest way to transfer files across devices.
         </div>
         <div class="paper-font-body1 discover">
             Allow me to be discovered by: Everyone in this network.

app/elements/elements.html

@@ -8,7 +8,7 @@
 -->
 <!-- Add your elements here -->
 <link rel="import" href="../styles/app-theme.html">
-<link rel="import" href="x-cards/x-card.html">
+<link rel="import" href="x-cards/about-page.html">
 <link rel="import" href="x-cards/x-cards.html">
 <link rel="import" href="buddy-finder/buddy-finder.html">
 <link rel="import" href="p2p-network/connection-wrapper.html">

app/elements/invitation-link/invitation-link-behavior.html

@@ -0,0 +1,45 @@
+<script>
+'use strict';
+window.Chat = window.Chat || {};
+Chat.InvitationLinkBehavior = {
+    properties: {
+        contact: {
+            type: String
+        }
+    },
+    _copy: function(e) {
+        if (e) {
+            e.preventDefault();
+            e.stopPropagation();
+        }
+        Polymer.Base.create('textarea');
+        var copyTextarea = this.textarea;
+        copyTextarea.value = this.link;
+        copyTextarea.select();
+        try {
+            var successful = document.execCommand('copy');
+            if (successful) {
+                app.displayToast('Copied invitation link to clipboard. Share it to send files to friends!');
+            }
+        } catch (err) {
+            console.log('Oops, unable to copy', err);
+        }
+        copyTextarea.blur();
+    },
+    get link() {
+        return 'http://' + window.location.host + '/' + this.contact;
+    },
+    get textarea() {
+        var textarea = document.querySelector('#copytextarea');
+        if (!textarea) {
+            textarea = Polymer.Base.create('textarea');
+            textarea.id = 'copytextarea';
+            var style = textarea.style;
+            style.position = 'absolute';
+            style.top = '-10000px';
+            document.body.appendChild(textarea);
+        }
+        return textarea;
+    }
+};
+</script>

app/elements/invitation-link/invitation-link.html

@@ -0,0 +1,29 @@
+<link rel="import" href="invitation-link-behavior.html">
+<link rel="import" href="../../bower_components/paper-tooltip/paper-tooltip.html">
+<dom-module id="invitation-link">
+    <template>
+        <style>
+        :host {
+            display: block;
+            position: absolute;
+            top: 16px;
+            left: 16px;
+            z-index: 3;
+        }
+        </style>
+        <paper-icon-button icon="chat:share" on-tap="_copy" id="btn"></paper-icon-button>
+        <paper-tooltip
+          for="btn"
+          position="bottom"
+          offset="14">
+         	Get an Invitation Link to send files accross different networks. 
+        </paper-tooltip>
+    </template>
+    <script>
+    'use strict';
+    Polymer({
+        is: 'invitation-link',
+        behaviors: [Chat.InvitationLinkBehavior]
+    });
+    </script>
+</dom-module>

app/elements/p2p-network/p2p-network.html

@@ -23,6 +23,9 @@
             }.bind(this);
         },
         initialize: function() {
+            if (window.isActive) {
+                clearInterval(this.reconnectTimer);
+                this.reconnectTimer = undefined;
                 var options;
                 if (window.debug) {
                     options = {
@@ -54,16 +57,15 @@
                     //ugly hack to find out error type
                     if (err.message.indexOf('Could not connect to peer') > -1) {
                         delete this._connectedPeers[this.peer];
-                    this.set('peer', 'error');
                         return;
                     }
                     if (err.message.indexOf('Lost connection to server') > -1) {
                         this._peer.destroy();
-                    this.set('me', this.me);
+                        this._reconnect();
-                    this.async(this._initialize, 3000);
                         return;
                     }
                 }.bind(this));
+            }
         },
 
         connect: function(c) {
@@ -145,7 +147,7 @@
                 conns.forEach(function(conn) {
                     if (conn.label === 'file') {
                         conn.send(file);
-                        console.log('file send via WebRTC');
+                        console.log('send file via WebRTC');
                     }
                 }.bind(this));
             }
@@ -159,6 +161,12 @@
                     }
                 }.bind(this));
             }
+        },
+        _reconnect: function(e) {
+            //try to reconnect after 3s 
+            if (!this.reconnectTimer) {
+                this.reconnectTimer = setInterval(this.initialize.bind(this), 3000);
+            }
         }
     });
     </script>

app/elements/p2p-network/tab-active.html

@@ -0,0 +1,25 @@
+<script>
+'use strict';
+var vis = (function() {
+    var stateKey,
+        eventKey,
+        keys = {
+            hidden: "visibilitychange",
+            webkitHidden: "webkitvisibilitychange",
+            mozHidden: "mozvisibilitychange",
+            msHidden: "msvisibilitychange"
+        };
+    for (stateKey in keys) {
+        if (stateKey in document) {
+            eventKey = keys[stateKey];
+            break;
+        }
+    }
+    return function(c) {
+        if (c) {
+            document.addEventListener(eventKey, c);
+        }
+        return !document[stateKey];
+    };
+})();
+</script>

app/elements/p2p-network/web-socket.html

@@ -9,12 +9,25 @@
     </template>
     <script>
     'use strict';
+    window.isActive = true;
+
+    window.onfocus = function() {
+        window.isActive = true;
+    };
+
+    window.onblur = function() {
+        window.isActive = false;
+    };
+
     Polymer({
         is: 'web-socket',
         attached: function() {
             this.init();
         },
         init: function() {
+            if (window.isActive) {
+                clearInterval(this.reconnectTimer);
+                this.reconnectTimer = undefined;
                 var websocketUrl = (window.debug ? 'ws://' + window.location.hostname + ':3002' : 'wss://snapdrop.net') + '/binary';
                 this.client = new BinaryClient(websocketUrl);
                 this.client.on('stream', function(stream, meta) {
@@ -45,7 +58,6 @@
                     }.bind(this));
                 }.bind(this));
                 this.client.on('open', function(e) {
-                this.cancelAsync(this.reconnectTimer);
                     console.log(e);
                     this.client.send({}, {
                         serverMsg: 'rtc-support',
@@ -58,6 +70,7 @@
                 this.client.on('close', function(e) {
                     this._reconnect(e);
                 }.bind(this));
+            }
         },
         _sendFile: function(toPeer, file) {
             console.log('send file via WebSocket', file);
@@ -80,7 +93,9 @@
         _reconnect: function(e) {
             console.log('disconnected', e);
             //try to reconnect after 3s 
-            this.reconnectTimer = this.async(this.init, 3000);
+            if (!this.reconnectTimer) {
+                this.reconnectTimer = setInterval(this.init.bind(this), 3000);
+            }
         }
     });
     </script>

app/elements/x-cards/about-page.html

@@ -3,7 +3,7 @@
 <link rel="import" href="../../bower_components/neon-animation/neon-animations.html">
 <link rel="import" href="../../bower_components/paper-styles/paper-styles-classes.html">
 <link rel="import" href="../../bower_components/iron-icon/iron-icon.html">
-<dom-module id="x-card">
+<dom-module id="about-page">
     <template>
         <style>
         :host {
@@ -18,13 +18,12 @@
             background-color: #4285f4;
             @apply(--layout-fit);
         }
-        
+        /*        paper-icon-button {
-        paper-icon-button {
             position: absolute;
             top: 16px;
             right: 16px;
             z-index: 2;
-        }
+        }*/
         
         #container {
             @apply(--layout-fit);
@@ -35,13 +34,12 @@
             box-sizing: border-box;
         }
         
-        
         .logo {
             width: 80px;
             height: 80px;
         }
         
-        .slogan{
+        .slogan {
             text-align: center;
         }
         
@@ -87,24 +85,74 @@
         a.paper-font-subhead {
             padding-top: 32px;
         }
+        
+        .share {
+            position: absolute;
+            top: 16px;
+            right: 16px;
+            z-index: 10;
+        }
+        
+        #btn,
+        .share a {
+            color: #52524F;
+        }
+        
+        .share a {
+            text-decoration: none;
+            padding-left: 8px;
+            padding-right: 8px;
+        }
+        
+        .share a:hover,
+        #btn:hover {
+            color: white;
+        }
         </style>
-        <paper-icon-button id="btn" icon="chat:close" on-tap="_switch"></paper-icon-button>
         <div id="placeholder"></div>
         <div id="container">
+            <div class="share">
+                <a href="https://twitter.com/snapdrop42" target="_blank">
+                    <iron-icon icon="chat:twitter"></iron-icon>
+                    <paper-tooltip for="" position="bottom" offset="14">
+                        Contact us on Twitter!
+                    </paper-tooltip>
+                </a>
+                <a href="https://www.facebook.com/snapdrop.net/" target="_blank">
+                    <iron-icon icon="chat:facebook"></iron-icon>
+                    <paper-tooltip for="" position="bottom" offset="14">
+                        Contact us on Facebook!
+                    </paper-tooltip>
+                </a>
+                <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=FDAHZJH3228D6" target="_blank">
+                    <iron-icon icon="chat:local-cafe"></iron-icon>
+                    <paper-tooltip for="" position="bottom" offset="14">
+                        You like Snapdrop?
+                        <br> Buy me a cup of coffee!
+                    </paper-tooltip>
+                </a>
+                <a href="https://github.com/capira12/snapdrop" target="_blank" class="github">
+                    <iron-icon icon="chat:github"></iron-icon>
+                    <paper-tooltip for="" position="bottom" offset="14">
+                        Get involved!
+                    </paper-tooltip>
+                </a>
+                <paper-icon-button id="btn" icon="chat:close" on-tap="_switch"></paper-icon-button>
+            </div>
             <div class="center">
                 <iron-icon icon="chat:wifi-tethering" class="logo"></iron-icon>
                 <div class="paper-font-headline">Snapdrop</div>
-                <div class="slogan">The easiest way to transfer files accross devices.</div>
+                <div class="slogan">The easiest way to transfer files across devices.</div>
                 <a class="paper-font-subhead" href="https://github.com/capira12/snapdrop/blob/master/faq.md" target="_blank">Frequently Asked Questions</a>
             </div>
-            <span id="footer">Built with &#9829; by <a href="https://twitter.com/snapdrop42" target="_blank">Robin Linus</a></span>
+            <span id="footer">Built with &#9829; by <a href="https://twitter.com/capira42" target="_blank">Robin Linus</a></span>
         </div>
     </template>
 </dom-module>
 <script>
 (function() {
     Polymer({
-        is: 'x-card',
+        is: 'about-page',
         behaviors: [
             Polymer.NeonSharedElementAnimatableBehavior
         ],

app/elements/x-cards/x-cards.html

@@ -47,40 +47,10 @@
             color: #4285f4;
         }
         
-        @media all and (max-height: 640px) {
-            .github {
-                display: none;
-            }
-        }
         </style>
         <div id="placeholder"></div>
         <div id="container">
             <div class="share">
-                <a href="https://twitter.com/snapdrop42" target="_blank">
-                    <iron-icon icon="chat:twitter"></iron-icon>
-                    <paper-tooltip for="" position="bottom" offset="14">
-                        Contact us on Twitter!
-                    </paper-tooltip>
-                </a>
-                <a href="https://www.facebook.com/snapdrop.net/" target="_blank">
-                    <iron-icon icon="chat:facebook"></iron-icon>
-                    <paper-tooltip for="" position="bottom" offset="14">
-                        Like us on Facebook!
-                    </paper-tooltip>
-                </a>
-                <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=FDAHZJH3228D6" target="_blank">
-                    <iron-icon icon="chat:local-cafe"></iron-icon>
-                    <paper-tooltip for="" position="bottom" offset="14">
-                        You like Snapdrop?
-                        <br> Buy me a cup of coffee!
-                    </paper-tooltip>
-                </a>
-                <a href="https://github.com/capira12/snapdrop" target="_blank" class="github">
-                    <iron-icon icon="chat:github" ></iron-icon>
-                    <paper-tooltip for="" position="bottom" offset="14">
-                        Get involved!
-                    </paper-tooltip>
-                </a>
                 <paper-icon-button id="btn" icon="chat:info-outline" on-tap="_switch"></paper-icon-button>
             </div>
             <content select="div"></content>

app/index.html

@@ -56,8 +56,8 @@
                     <buddy-finder me="{{me}}" active$="{{loading}}" buddies="{{buddies}}"></buddy-finder>
                 </div>
             </x-cards>
-            <x-card on-switch="_showApp">
+            <about-page on-switch="_showApp">
-            </x-card>
+            </about-page>
         </neon-animated-pages>
         <file-receiver></file-receiver>
         <paper-toast id="toast" duration="6000">