WIP #302 simple SVG support

lib/entity_widgets/common/camera_stream_view.dart

@@ -20,10 +20,10 @@ class _CameraStreamViewState extends State<CameraStreamView> {
   http.Client client;
   http.StreamedResponse response;
   List<int> binaryImage = [];
-  String cameraState = "Connecting...";
   bool timeToStop = false;
   Completer streamCompleter;
   bool started = false;
+  bool useSVG = false;
 
   void _connect() async {
     started = true;
@@ -31,11 +31,8 @@ class _CameraStreamViewState extends State<CameraStreamView> {
     String streamUrl = '$homeAssistantWebHost/api/camera_proxy_stream/${_entity.entityId}?token=${_entity.attributes['access_token']}';
     client = new http.Client(); // create a client to make api calls
     http.Request request = new http.Request("GET", Uri.parse(streamUrl));  // create get request
-    Logger.d("[Sending] ==> ${streamUrl}");
+    Logger.d("[Sending] ==> $streamUrl");
     response = await client.send(request);
-    setState(() {
-      cameraState = "Starting...";
-    });
     Logger.d("[Received] <== ${response.headers}");
     String frameBoundary = response.headers['content-type'].split('boundary=')[1];
     final int frameBoundarySize = frameBoundary.length;
@@ -56,7 +53,7 @@ class _CameraStreamViewState extends State<CameraStreamView> {
             if (primaryBuffer.length >= imageSizeStart + 10) {
               contentType = utf8.decode(
                   primaryBuffer.sublist(frameBoundarySize+16, imageSizeStart + 10), allowMalformed: true).split("\r\n")[0];
-              //Logger.d("$contentType");
+              useSVG = contentType == "image/svg+xml";
               imageSizeStart = frameBoundarySize + 16 + contentType.length + 18;
               for (int i = imageSizeStart; i < primaryBuffer.length - 4; i++) {
                 strBuffer = utf8.decode(
@@ -139,17 +136,38 @@ class _CameraStreamViewState extends State<CameraStreamView> {
     if (binaryImage.isEmpty) {
       return Column(
         children: <Widget>[
-          Text("$cameraState")
+          Container(
+              padding: const EdgeInsets.all(20.0),
+              child: const CircularProgressIndicator()
+          )
+        ],
+      );
+    } else {
+      if (useSVG) {
+        Logger.d("Camera with SVG source");
+        return Column(
+          children: <Widget>[
+            SvgPicture.memory(
+              Uint8List.fromList(binaryImage),
+              height: 200.0,
+              placeholderBuilder: (BuildContext context) =>
+              new Container(
+                  padding: const EdgeInsets.all(20.0),
+                  child: const CircularProgressIndicator()
+              ),
+            )
           ],
         );
       } else {
         return Column(
           children: <Widget>[
-          Image.memory(Uint8List.fromList(binaryImage), gaplessPlayback: true),
+            Image.memory(
+                Uint8List.fromList(binaryImage), gaplessPlayback: true),
           ],
         );
       }
     }
+  }
 
   @override
   void dispose() {

lib/main.dart

@@ -15,6 +15,8 @@ import 'package:http/http.dart' as http;
 import 'package:charts_flutter/flutter.dart' as charts;
 import 'package:progress_indicators/progress_indicators.dart';
 import 'package:flutter_markdown/flutter_markdown.dart';
+import 'package:flutter_svg/flutter_svg.dart';
+import 'package:webview_flutter/webview_flutter.dart';
 
 part 'entity_class/const.dart';
 part 'entity_class/entity.class.dart';

pubspec.lock

@@ -127,6 +127,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.0"
+  flutter_svg:
+    dependency: "direct main"
+    description:
+      name: flutter_svg
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.3"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -195,6 +202,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.6.2"
+  path_drawing:
+    dependency: transitive
+    description:
+      name: path_drawing
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.0"
+  path_parsing:
+    dependency: transitive
+    description:
+      name: path_parsing
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
   path_provider:
     dependency: transitive
     description:
@@ -326,13 +347,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.9"
+  webview_flutter:
+    dependency: "direct main"
+    description:
+      name: webview_flutter
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.3+1"
   xml:
     dependency: transitive
     description:
       name: xml
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.3.1"
+    version: "3.2.5"
   yaml:
     dependency: transitive
     description:
@@ -341,5 +369,5 @@ packages:
     source: hosted
     version: "2.1.15"
 sdks:
-  dart: ">=2.0.0 <3.0.0"
+  dart: ">2.0.0 <3.0.0"
-  flutter: ">=0.5.6 <2.0.0"
+  flutter: ">=0.11.9 <2.0.0"

pubspec.yaml

@@ -18,6 +18,8 @@ dependencies:
   date_format: any
   charts_flutter: any
   flutter_markdown: any
+  flutter_svg: ^0.10.3
+  webview_flutter: any
 
 dev_dependencies:
   flutter_test: