feat(download): cancel downloading

src/app/torrent-page.js

@@ -18,6 +18,7 @@ var moment = require('moment');
 import RefreshIndicator from 'material-ui/RefreshIndicator';
 let rating = require('./rating');
 import LinearProgress from 'material-ui/LinearProgress';
+import FlatButton from 'material-ui/FlatButton';
 import {fileTypeDetect} from './content'
 import {contentIcon} from './torrent'
 
@@ -247,11 +248,14 @@ export default class TorrentPage extends Page {
     }
     window.torrentSocket.on('downloading', this.downloading);
     
-    this.downloadDone = (hash) => {
+    this.downloadDone = (hash, canceled) => {
       if(this.props.hash != hash)
         return;
 
-      this.setState({downloading: false})
+      this.setState({
+        downloading: false,
+        askDownloading: !canceled
+      })
     }
     window.torrentSocket.on('downloadDone', this.downloadDone);
 
@@ -402,6 +406,14 @@ export default class TorrentPage extends Page {
                           mode="determinate" 
                           value={this.state.downloadProgress && this.state.downloadProgress.progress * 100}
                         />
+                        <FlatButton
+                          onClick={() => {
+                            window.torrentSocket.emit('downloadCancel', this.torrent.hash)
+                          }}
+                          label="Cancel download"
+                          secondary={true}
+                          icon={<svg fill='rgb(255, 64, 129)' viewBox="0 0 18 18"><path d="M9 1C4.58 1 1 4.58 1 9s3.58 8 8 8 8-3.58 8-8-3.58-8-8-8zm4 10.87L11.87 13 9 10.13 6.13 13 5 11.87 7.87 9 5 6.13 6.13 5 9 7.87 11.87 5 13 6.13 10.13 9 13 11.87z"/></svg>}
+                        />
                       </div>
                       }
 								 <div className='fs0-75 pad0-75 center column' style={{color: 'rgba(0, 0, 0, 0.541176)'}}><div>BTIH:</div><div>{this.torrent.hash}</div></div>

src/background/spider.js

@@ -584,11 +584,14 @@ setInterval(() => {
 	recive('download', (magnet) =>
 	{
 		console.log('download', magnet)
-		if(torrentClient.get(magnet))
+		if(torrentClient.get(magnet)) {
+			console.log('aready added')
 			return
+		}
 
 		torrentClient.add(magnet, {path: config.client.downloadPath}, (torrent) =>{
 			torrentClientHashMap[torrent.infoHash] = magnet
+			console.log('start downloading', torrent.infoHash)
 			send('downloading', torrent.infoHash)
 
 			torrent.on('done', () => { 
@@ -622,7 +625,7 @@ setInterval(() => {
 			return
 		}
 
-		client.remove(id, (err) => {
+		torrentClient.remove(id, (err) => {
 			if(err)
 			{
 				callback(false)
@@ -630,6 +633,8 @@ setInterval(() => {
 			}
 
 			delete torrentClientHashMap[hash]
+			send('downloadDone', hash, true)
+
 			if(callback)
 				callback(true)
 		})