Merge pull request #141 from lbryio/image-and-html-file-types

add support for viewing images, HTML and text files in the app

app/package-lock.json

@@ -3953,7 +3953,7 @@
             }
         },
         "lbry-redux": {
-            "version": "github:lbryio/lbry-redux#30c18725d8c6c141c30c57f0a324d0abb8963b99",
+            "version": "github:lbryio/lbry-redux#8cbeed792906335577bbf4382a2707f8e463e242",
             "requires": {
                 "proxy-polyfill": "0.1.6",
                 "reselect": "3.0.1"
@@ -5174,6 +5174,19 @@
                 "react-native-drawer-layout": "1.3.2"
             }
         },
+        "react-native-image-pan-zoom": {
+            "version": "2.1.3",
+            "resolved": "https://registry.npmjs.org/react-native-image-pan-zoom/-/react-native-image-pan-zoom-2.1.3.tgz",
+            "integrity": "sha512-KnuSM0Rs+XD7EFovgJfGsU/Bl0sFIvqTZQ04hebW9dtuKekBOBMEEnuuvTxrktbBBhzDlwgxRrVWlTt6PGREDw=="
+        },
+        "react-native-image-zoom-viewer": {
+            "version": "2.2.5",
+            "resolved": "https://registry.npmjs.org/react-native-image-zoom-viewer/-/react-native-image-zoom-viewer-2.2.5.tgz",
+            "integrity": "sha512-kXpetilVqHajZDYrc8QjPEmB7wRNxoOlmtZaATshNZKUp7DABL7lubdKxqfC3GiFuvVfp6Ei8hkaADRF53AeTw==",
+            "requires": {
+                "react-native-image-pan-zoom": "2.1.3"
+            }
+        },
         "react-native-safe-area-view": {
             "version": "0.7.0",
             "resolved": "https://registry.npmjs.org/react-native-safe-area-view/-/react-native-safe-area-view-0.7.0.tgz",

app/package.json

@@ -10,6 +10,7 @@
         "moment": "^2.22.1",
         "react": "16.2.0",
         "react-native": "0.55.3",
+        "react-native-image-zoom-viewer": "^2.2.5",
         "react-native-vector-icons": "^4.5.0",
         "react-native-video": "2.0.0",
         "react-navigation": "^1.5.12",

app/src/component/fileDownloadButton/view.js

@@ -39,13 +39,9 @@ class FileDownloadButton extends React.PureComponent {
       loading,
       doPause,
       style,
+      openFile
     } = this.props;
 
-    const openFile = () => {
-      //openInShell(fileInfo.download_path);
-      //doPause();
-    };
-    
     if (loading || downloading) {
       const progress =
           fileInfo && fileInfo.written_bytes ? fileInfo.written_bytes / fileInfo.total_bytes * 100 : 0,
@@ -77,7 +73,7 @@ class FileDownloadButton extends React.PureComponent {
       );
     } else if (fileInfo && fileInfo.download_path) {
       return (
-        <TouchableOpacity style={[style, fileDownloadButtonStyle.container]} onPress={() => openFile()}>
+        <TouchableOpacity style={[style, fileDownloadButtonStyle.container]} onPress={openFile}>
           <Text style={fileDownloadButtonStyle.text}>Open</Text>
         </TouchableOpacity>
       );

app/src/page/file/view.js

@@ -4,14 +4,17 @@ import {
   ActivityIndicator,
   Alert,
   Button,
-  Text,
+  NativeModules,
-  TextInput,
-  View,
   ScrollView,
   StatusBar,
+  StyleSheet,
+  Text,
+  TextInput,
   TouchableOpacity,
-  NativeModules
+  View,
+  WebView
 } from 'react-native';
+import ImageViewer from 'react-native-image-zoom-viewer';
 import Colors from '../../styles/colors';
 import ChannelPage from '../channel';
 import FileDownloadButton from '../../component/fileDownloadButton';
@@ -31,7 +34,10 @@ class FilePage extends React.PureComponent {
     super(props);
     this.state = {
       mediaLoaded: false,
-      fullscreenMode: false
+      fullscreenMode: false,
+      showImageViewer: false,
+      showWebView: false,
+      imageUrls: null
     };
   }
   
@@ -120,6 +126,13 @@ class FilePage extends React.PureComponent {
     }
   }
   
+  localUriForFileInfo = (fileInfo) => {
+    if (!fileInfo) {
+      return null;
+    }
+    return 'file:///' + fileInfo.download_path;
+  }
+  
   render() {
     const {
       claim,
@@ -163,7 +176,7 @@ class FilePage extends React.PureComponent {
       const mediaType = Lbry.getMediaType(contentType);
       const isPlayable = mediaType === 'video' || mediaType === 'audio';
       const { height, channel_name: channelName, value } = claim;
-      const showActions = !this.state.fullscreenMode &&
+      const showActions = !this.state.fullscreenMode && !this.state.showImageViewer && !this.state.showWebView &&
         (completed || (fileInfo && !fileInfo.stopped && fileInfo.written_bytes < fileInfo.total_bytes));
       const channelClaimId =
         value && value.publisherSignature && value.publisherSignature.certificateId;
@@ -175,14 +188,45 @@ class FilePage extends React.PureComponent {
       // at least 2MB (or the full download) before media can be loaded
       const canLoadMedia = fileInfo &&
         (fileInfo.written_bytes >= 2097152 || fileInfo.written_bytes == fileInfo.total_bytes); // 2MB = 1024*1024*2
+      const canOpen = (mediaType === 'image' || mediaType === 'text') && completed;
+      const isWebViewable = mediaType === 'text';
+      const localFileUri = this.localUriForFileInfo(fileInfo);
+      
+      const openFile = () => {
+        if (mediaType === 'image') {
+          // use image viewer
+          this.setState({
+            imageUrls: [{
+              url: localFileUri
+            }],
+            showImageViewer: true
+          });
+        }
+        if (isWebViewable) {
+          // show webview
+          this.setState({
+            showWebView: true
+          });
+        }
+      }
 
       innerContent = (
+        <View style={filePageStyle.pageContainer}>
+          {this.state.showWebView && isWebViewable && <WebView source={{ uri: localFileUri }}
+                                                               style={filePageStyle.viewer} />}
+                                                               
+          {this.state.showImageViewer && <ImageViewer style={StyleSheet.flatten(filePageStyle.viewer)}
+                                                      imageUrls={this.state.imageUrls}
+                                                      renderIndicator={() => null} />}
+                                                    
+          {!this.state.showWebView && (
             <View style={filePageStyle.pageContainer}>
               <View style={filePageStyle.mediaContainer}>  
-            {(!fileInfo || (isPlayable && !canLoadMedia)) &&
+                {(canOpen || (!fileInfo || (isPlayable && !canLoadMedia))) &&
                   <FileItemMedia style={filePageStyle.thumbnail} title={title} thumbnail={metadata.thumbnail} />}
-            {isPlayable && !this.state.mediaLoaded && <ActivityIndicator size="large" color={Colors.LbryGreen} style={filePageStyle.loading} />}
+                {(canOpen || (isPlayable && !this.state.mediaLoaded)) && <ActivityIndicator size="large" color={Colors.LbryGreen} style={filePageStyle.loading} />}
-            {!completed && !canLoadMedia && <FileDownloadButton uri={uri} style={filePageStyle.downloadButton} />}
+                {((isPlayable && !completed && !canLoadMedia) || !completed || canOpen) &&
+                  <FileDownloadButton uri={uri} style={filePageStyle.downloadButton} openFile={openFile} />}
                 {!fileInfo && <FilePrice uri={uri} style={filePageStyle.filePriceContainer} textStyle={filePageStyle.filePriceText} />}
               </View>
               {canLoadMedia && <View style={playerBgStyle} />}
@@ -204,6 +248,9 @@ class FilePage extends React.PureComponent {
                 {channelName && <Text style={filePageStyle.channelName} selectable={true}>{channelName}</Text>}
                 {description && <Text style={filePageStyle.description} selectable={true}>{description}</Text>}
               </ScrollView>
+            </View>
+          )}
+
           <UriBar value={uri} navigation={navigation} />
         </View>
       );

app/src/styles/filePage.js

@@ -143,6 +143,15 @@ const filePageStyle = StyleSheet.create({
     fontSize: 20,
     textAlign: 'center',
     marginLeft: 10
+  },
+  viewer: {
+    position: 'absolute',
+    flex: 1,
+    left: 0,
+    right: 0,
+    top: 0,
+    bottom: 0,
+    zIndex: 100
   }
 });