[Main UI] screen.viewAreaWidth not updating / working

[MatzeMuc86]

The problem

Using screen.viewAreaWidth within custom widgets. With Opdateing from OH 4.2.2 to OH 4.3.0 on Docker the functions causes issues in custom widgets. For better understanding, I generated a specific test widget and test page.

Until OH 4.2.2screen.viewAreaWidth reacted live on changes of screen width (e.g. when re-sizing browser windows). This stoped now as one can see in the GIF. Neither reloading page (URL + ENTER) nor F5 work. Only clicking the link in OH menu reloads current values once.

Test Widget

uid: Cell_Test
tags: []
props:
  parameters:
    - description: HEX or rgba
      label: Backgroundcolor
      name: bgcolor
      required: false
      type: TEXT
    - description: Page which will be opened as popup
      label: Page ID
      name: page
      required: false
timestamp: Dec 18, 2024, 11:42:39 AM
component: f7-card
config:
  title: = (screen.viewAreaWidth) + " Title"
slots:
  content:
    - component: Label
      config:
        text: = (screen.viewAreaWidth) + " Label"

Test Page

config:
  label: test1234
  sidebar: true
blocks:
  - component: oh-block
    config: {}
    slots:
      default:
        - component: oh-grid-row
          config: {}
          slots:
            default:
              - component: oh-grid-col
                config: {}
                slots:
                  default:
                    - component: widget:Cell_Test
                      config: {}
masonry: []
grid: []
canvas: []

[florian-h05]

I have just checked (both by testing and reading the code) and it did never react to screen resizing live in the past, so this is no regression from 4.3.0.
Anyway, 5.0 will fix this.

[MatzeMuc86]

You are partly right, I quickly tested it on 4.2.2 amd it never reacted on live changes but it reacted on loading page / reloading URL. At least loading correct value when entering page is crucial for me and a regression as I use this function on home screen which is broken on 4.3. now.

Maybe there is a change to bring loading value on page access back at leas on 4.3?

[florian-h05]

I can backport #2933 to 4.3.x so it gets fixed there 👍
This also makes it update on live changes.

[MatzeMuc86]

I can backport #2933 to 4.3.x so it gets fixed there 👍 This also makes it update on live changes.

Thank you!

[MatzeMuc86]

I can confirm it is working now. Thank you!