4d5fa1c43b
When GStreamer pipeline graphs contain references to other pipeline dot files, users should be able to navigate between related pipeline views by clicking on these references. This enables exploring complex pipeline hierarchies where one pipeline references sub-pipelines. The implementation detects text elements containing pipeline-dot references, styles them as web links, and handles click events to navigate to the referenced pipeline while preserving existing text selection and drag functionality for other elements. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9547>