ViewportState

ViewportState holds current viewport and content geometry.

Public status

ViewportState lives in src/states and is mainly runtime reference. Most integrations should read it through exported StringData.

Important fields

• windowWidth
• windowHeight
• contentWidth
• contentHeight
• scaleWidth
• scaleHeight
• transformScale
• baseRem

What it is for

This state powers:

• resize-aware modules
• dimension parsing
• transformed container calculations
• responsive behavior

Practical note

If a module depends on viewport size, root font size, or transformed layout scaling, the needed values usually live in data.viewport.