feature(network map): loading screen for network map

app/components/Network/CanvasNetworkGraph.css

@@ -1,22 +0,0 @@
-.network {
-  width: 100%;
-  height: 100vh;
-  animation: fadein 0.5s;
-  animation-timing-function:linear;
-  animation-fill-mode: forwards;
-  animation-iteration-count: 1;
-}
-
-.links line {
-  stroke: #999;
-  stroke-opacity: 0.6;
-}
-
-.nodes circle {
-  stroke: black ;
-  stroke-width: 0px;
-}
-
-.active-peer {
-  fill: pink;
-}

app/components/Network/CanvasNetworkGraph.js

@@ -2,7 +2,7 @@ import { findDOMNode } from 'react-dom'
 import React, { Component } from 'react'
 import PropTypes from 'prop-types'
 import * as d3 from 'd3'
-// import './CanvasNetworkGraph.css'
+import styles from './CanvasNetworkGraph.scss'
 
 function generateSimulationData(nodes, edges) {
   const resNodes = nodes.map(node => Object.assign(node, { id: node.pub_key }))
@@ -26,7 +26,9 @@ class CanvasNetworkGraph extends Component {
       simulationData: {
         nodes: [],
         links: []
-      }
+      },
+
+      svgLoaded: false
     }
 
     this._startSimulation = this._startSimulation.bind(this)
@@ -35,10 +37,31 @@ class CanvasNetworkGraph extends Component {
     this._restart = this._restart.bind(this)
   }
 
+  componentWillReceiveProps(nextProps) {
+    const { network } = nextProps
+    const { simulationData: { nodes, links } } = this.state
+
+    const simulationDataEmpty = !nodes.length && !links.length
+    const networkDataLoaded = network.nodes.length || network.edges.length
+
+    // if the simulationData is empty and we have data
+    if (simulationDataEmpty && networkDataLoaded) {
+      this.setState({
+        simulationData: generateSimulationData(network.nodes, network.edges)
+      })
+    }
+  }
+
   componentDidMount() {
     // wait for the svg to me in the DOM before we start the simulation
     const svgInterval = setInterval(() => {
-      if (document.getElementById('map')) {
+      if (document.getElementById('mapContainer')) {
+        d3.select('#mapContainer')
+          .append('svg')
+          .attr('id', 'map')
+          .attr('width', 800)
+          .attr('height', 800)
+
         this._startSimulation()
 
         clearInterval(svgInterval)
@@ -79,7 +102,6 @@ class CanvasNetworkGraph extends Component {
 
   componentWillUnmount() {
     d3.select('#map')
-      .selectAll('*')
       .remove()
   }
 
@@ -177,6 +199,10 @@ class CanvasNetworkGraph extends Component {
       .force('link', d3.forceLink(links).id(d => d.pub_key).distance(500))
       .force('collide', d3.forceCollide(300))
       .on('tick', this._ticked)
+      .on('end', () => {
+        this.setState({ svgLoaded: true })
+      })
+
 
     // zoom
     const zoom_handler = d3.zoom().on('zoom', this._zoomActions)
@@ -235,18 +261,22 @@ class CanvasNetworkGraph extends Component {
   }
 
   render() {
-    const { simulationData } = this.state
+    const { svgLoaded } = this.state
-    const {
-      network: { nodes, edges, selectedChannel, networkLoading },
-      selectedPeerPubkeys,
-      selectedChannelIds,
-      currentRouteChanIds,
-      identity_pubkey
-    } = this.props
 
     return (
-      <div id='mapContainer' style={{ display: 'inline' }}>
+      <div className={styles.mapContainer} id='mapContainer'>
-        <svg width='800' height='800' id='map'></svg>
+        {
+          !svgLoaded && 
+          <div className={styles.loadingContainer}>
+            <div className={styles.loadingWrap}>
+              <div className={styles.loader}></div>
+              <div className={styles.loaderbefore}></div>
+              <div className={styles.circular}></div>
+              <div className={`${styles.circular} ${styles.another}`}></div>
+              <div className={styles.text}>loading</div>
+            </div>
+          </div>
+        }
       </div>
     )
   }

app/components/Network/CanvasNetworkGraph.scss

@@ -0,0 +1,156 @@
+@import '../../variables.scss';
+
+@keyframes fadein {
+  0%   { background: $white; }
+  50%  { background: lighten($secondary, 50%); }
+  100% { background: $secondary; animation-fill-mode:forwards; }
+}
+
+.mapContainer {
+  position: relative;
+  display: inline-block;
+  width: 70%;
+  height: 100%;
+}
+
+.loadingContainer {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: $secondary;
+}
+
+.loadingWrap {
+  position: relative;
+  top: calc(50% - 150px);
+  width: 150px;
+  margin: 0 auto;
+}
+
+.loader {
+  position: absolute;
+  top: 0;
+  z-index: 10;
+  width: 50px;
+  height: 50px;
+  border: 15px solid;
+  border-radius: 50%;
+  border-top-color: rgba(44,44,44,0);
+  border-right-color: rgba(55,55,55,0);
+  border-bottom-color: rgba(66,66,66,0);
+  border-left-color: rgba(33,33,33,0);
+  animation: loadEr 3s infinite;
+}
+
+@keyframes loadEr {
+  0% {
+    border-top-color: rgba(44,44,44,0);
+    border-right-color: rgba(55,55,55,0);
+    border-bottom-color: rgba(66,66,66,0);
+    border-left-color: rgba(33,33,33,0);
+    
+  }
+  10.4% {
+    border-top-color: rgba(44,44,44,0.5);
+    border-right-color: rgba(55,55,55,0);
+    border-bottom-color: rgba(66,66,66,0);
+    border-left-color: rgba(33,33,33,0);
+  }
+  20.8% {
+    border-top-color: rgba(44,44,44,0);
+    border-right-color: rgba(55,55,55,0);
+    border-bottom-color: rgba(66,66,66,0);
+    border-left-color: rgba(33,33,33,0);
+  }
+31.2% {
+  border-top-color: rgba(44,44,44,0);
+    border-right-color: rgba(55,55,55,0.5);
+    border-bottom-color: rgba(66,66,66,0);
+    border-left-color: rgba(33,33,33,0);
+}
+41.6% {
+  border-top-color: rgba(44,44,44,0);
+    border-right-color: rgba(55,55,55,0);
+    border-bottom-color: rgba(66,66,66,0);
+    border-left-color: rgba(33,33,33,0);
+  transform: rotate(40deg);
+}
+52% {
+  border-top-color: rgba(44,44,44,0);
+    border-right-color: rgba(55,55,55,0);
+    border-bottom-color: rgba(66,66,66,0.5);
+    border-left-color: rgba(33,33,33,0);
+}
+62.4% {
+  border-top-color: rgba(44,44,44,0);
+    border-right-color: rgba(55,55,55,0);
+    border-bottom-color: rgba(66,66,66,0);
+    border-left-color: rgba(33,33,33,0);
+}
+72.8% {
+  border-top-color: rgba(44,44,44,0);
+    border-right-color: rgba(55,55,55,0);
+    border-bottom-color: rgba(66,66,66,0);
+    border-left-color: rgba(33,33,33,0.5);
+}
+}
+
+.loaderbefore {
+  width: 50px;
+  height:50px;
+  border: 15px solid #ddd;
+  border-radius: 50%;
+  position: absolute;
+  top: 0;
+  z-index: 9;
+}
+
+.circular {
+  position: absolute;
+  top: -15px;
+  left: -15px;
+  width: 70px;
+  height: 70px;
+  border: 20px solid;
+  border-radius: 50%;
+  border-top-color: #333;
+  border-left-color: #fff;
+  border-bottom-color: #333;
+  border-right-color: #fff;
+  opacity: 0.2;
+  animation: poof 5s infinite;
+}
+@keyframes poof {
+  0% {transform: scale(1,1) rotate(0deg); opacity: 0.2;}
+  50% {transform: scale(4,4) rotate(360deg); opacity: 0;}
+}
+.another {
+  opacity: 0.1;
+  transform: rotate(90deg);
+  animation: poofity 5s infinite;
+  animation-delay: 1s;
+}
+@keyframes poofity {
+  0% {transform: scale(1,1) rotate(90deg); opacity: 0.1;}
+  50% {transform: scale(4,4) rotate(-360deg); opacity: 0;}
+}
+
+.text {
+  position: absolute;
+  top: 95px;
+  left: 8px;
+  font-family: Arial;
+  text-transform: uppercase;
+  color: #888;
+  animation: opaa 10s infinite;
+}
+@keyframes opaa {
+  0% {opacity: 1;}
+10% {opacity: 0.5}
+15% {opacity: 1;}
+30% {opacity: 1;}
+65% {opacity: 0.3;}
+90% {opacity: 0.8;}
+}

app/reducers/network.js

@@ -23,8 +23,10 @@ export const UPDATE_PAY_REQ = 'UPDATE_PAY_REQ'
 export const RESET_PAY_REQ = 'RESET_PAY_REQ'
 
 export const UPDATE_SELECTED_PEERS = 'UPDATE_SELECTED_PEERS'
+export const CLEAR_SELECTED_PEERS = 'CLEAR_SELECTED_PEERS'
 
 export const UPDATE_SELECTED_CHANNELS = 'UPDATE_SELECTED_CHANNELS'
+export const CLEAR_SELECTED_CHANNELS = 'CLEAR_SELECTED_CHANNELS'
 
 export const GET_INFO_AND_QUERY_ROUTES = 'GET_INFO_AND_QUERY_ROUTES'
 export const RECEIVE_INFO_AND_QUERY_ROUTES = 'RECEIVE_INFO_AND_QUERY_ROUTES'
@@ -113,6 +115,18 @@ export function clearQueryRoutes() {
   }
 }
 
+export function clearSelectedPeers() {
+  return {
+    type: CLEAR_SELECTED_PEERS
+  }
+}
+
+export function clearSelectedChannels() {
+  return {
+    type: CLEAR_SELECTED_CHANNELS
+  }
+}
+
 // Send IPC event for describeNetwork
 export const fetchDescribeNetwork = () => (dispatch) => {
   dispatch(getDescribeNetwork())
@@ -185,6 +199,7 @@ const ACTION_HANDLERS = {
       ...state, selectedPeers
     }
   },
+  [CLEAR_SELECTED_PEERS]: state => ({ ...state, selectedPeers: [] }),
 
   [UPDATE_SELECTED_CHANNELS]: (state, { channel }) => {
     let selectedChannels
@@ -200,7 +215,8 @@ const ACTION_HANDLERS = {
     return {
       ...state, selectedChannels
     }
-  }
+  },
+  [CLEAR_SELECTED_CHANNELS]: state => ({ ...state, selectedChannels: [] }),
 }
 
 // ------------------------------------

app/routes/network/components/Network.js

@@ -34,10 +34,12 @@ class Network extends Component {
   }
 
   componentWillUnmount() {
-    const { clearQueryRoutes, resetPayReq } = this.props
+    const { clearQueryRoutes, resetPayReq, clearSelectedChannels, clearSelectedPeers } = this.props
 
     clearQueryRoutes()
     resetPayReq()
+    clearSelectedChannels()
+    clearSelectedPeers() 
   }
 
   render() {

app/routes/network/containers/NetworkContainer.js

@@ -5,8 +5,13 @@ import {
   fetchDescribeNetwork,
 
   setCurrentTab,
+
   updateSelectedPeers,
+  clearSelectedPeers,
+
   updateSelectedChannels,
+  clearSelectedChannels,
+
   setCurrentRoute,
 
   updatePayReq,
@@ -25,7 +30,10 @@ import Network from '../components/Network'
 const mapDispatchToProps = {
   fetchDescribeNetwork,
   setCurrentTab,
+  
   updateSelectedPeers,
+  clearSelectedPeers,
+
   updatePayReq,
   fetchInvoiceAndQueryRoutes,
   setCurrentRoute,
@@ -35,7 +43,8 @@ const mapDispatchToProps = {
   fetchPeers,
 
   fetchChannels,
-  updateSelectedChannels
+  updateSelectedChannels,
+  clearSelectedChannels
 }
 
 const mapStateToProps = state => ({