frontend: components: video-manager: VideoStreamCreationDialog: Fix form state reset

[joaoantoniocardoso]

Summary

• Fix stale form state when reopening the stream creation/editing dialog by re-syncing all fields from the stream prop via a watcher on the dialog visibility

Test plan

• Open a stream creation dialog, make changes, close without saving, reopen — form should reflect the current stream state, not stale edits

Summary by Sourcery

Bug Fixes:

• Ensure the stream creation/edit dialog re-syncs all form fields from the current stream data each time the dialog is shown, preventing stale form values after closing without saving.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds a watcher on the dialog visibility flag to reset the video stream creation form from the current stream data whenever the dialog is opened, preventing stale form state when reopening the dialog.

Sequence diagram for form reset on dialog reopen

sequenceDiagram
  actor User
  participant VideoStreamCreationDialog
  participant Form

  User->>VideoStreamCreationDialog: clickOpenDialog()
  VideoStreamCreationDialog->>VideoStreamCreationDialog: set show = true
  VideoStreamCreationDialog->>VideoStreamCreationDialog: watcher show(newVal)
  alt newVal is true
    VideoStreamCreationDialog->>VideoStreamCreationDialog: resetFormFromStream()
    VideoStreamCreationDialog->>Form: populate fields from stream
  end

  User->>VideoStreamCreationDialog: closeDialogWithoutSaving()
  VideoStreamCreationDialog->>VideoStreamCreationDialog: set show = false

  User->>VideoStreamCreationDialog: clickOpenDialog()
  VideoStreamCreationDialog->>VideoStreamCreationDialog: set show = true
  VideoStreamCreationDialog->>VideoStreamCreationDialog: watcher show(newVal)
  alt newVal is true
    VideoStreamCreationDialog->>VideoStreamCreationDialog: resetFormFromStream()
    VideoStreamCreationDialog->>Form: overwrite stale edits with current stream
  end

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Class diagram for VideoStreamCreationDialog watcher addition

classDiagram
  class VideoStreamCreationDialog {
    +boolean show
    +VForm form
    +resetFormFromStream() void
    +watch_show(newVal boolean) void
  }

  class VForm {
  }

  VideoStreamCreationDialog ..> VForm : uses

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File-Level Changes

Change	Details	Files
Ensure the video stream creation/edit dialog form state is reset from the current stream data whenever the dialog is opened.	Introduced a Vue watcher on the dialog visibility prop/state show. When show becomes true, invoke resetFormFromStream() to re-sync all form fields from the stream prop. Relies on existing resetFormFromStream logic instead of duplicating field-reset behavior.	core/frontend/src/components/video-manager/VideoStreamCreationDialog.vue

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[joaoantoniocardoso]

Closing: the watch block already exists on master (merged via an earlier PR).