From 5d0936d39c73c9ee2025baa149b7aa2d2e111d88 Mon Sep 17 00:00:00 2001 From: Dorian Goepp <dorian.goepp@gmail.com> Date: Thu, 18 Apr 2019 15:34:07 +0200 Subject: [PATCH] handle case when the topic is not published --- src/VideoStream/index.js | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/src/VideoStream/index.js b/src/VideoStream/index.js index e49e4f6..830b39a 100644 --- a/src/VideoStream/index.js +++ b/src/VideoStream/index.js @@ -6,9 +6,19 @@ class VideoStream extends Component { super(props) const hasUrl = ('url' in this.props && this.props.url); + this.topic = '/pepper/image_raw'; + this.defaultImage = ''; + this.state = { - url: hasUrl ? this.props.url : 'http://localhost:8081/stream?topic=/pepper/image_raw' - } + url: hasUrl ? this.props.url : this.defaultImage + }; + + this.props.ros.getTopics(function(infos){ + console.debug(infos.topics) + if (undefined !== infos.topics.find(elem => elem === this.topic)) { + this.setState({url: 'http://localhost:8081/stream?topic=' + this.topic}); + } + }.bind(this)) } handleSettingsChange(event) { -- GitLab