Does SC 1.4.4 Resize Text need to conform to reflow?

[Zoey0li]

Does it need to achieve reflow when the webpage is enlarged to 200%?

[mraccess77]

SC 1.4.4 text resize does not have a requirement for reflow - scroll bars are acceptable to pass this requirement as long as all content and functionality are still available. If things were cut off and you couldn't reach them - then that would be a failure.

[patrickhlauke]

@mraccess77 i believe the question is more along the lines of: once a user has resized text, are they then supposed to also test 1.4.10 Reflow? i.e. similar flavour of question as #4332

unless i'm reading too much into this (also, assuming we're talking about full-page zoom rather than pure text resizing, zooming to 200% just changes the viewport size, so then to test reflow you'd just need to resize the browser window or change the zoom some more, so it's really a non-question if that was the intended line of thinking)

[scottaohara]

the answer to this really just depends on more context.

for instance, either of jon or patrick's answers may be sufficient for what you're looking for. But also, if you are testing a web page rendered in a 640px wide browser viewport window at 100% zoom, but you up that to 200% zoom, that makes it 320px wide viewport... You may well be testing both SCs now.

[Zoey0li]

In fact, if the font is enlarged to 200% through the font enlargement function, I think reflow may not be required; however, if the font is enlarged to 200% through page zooming, reflow is required. I believe that when the page is zoomed in to 400%, reflow is necessary, and similarly, when the page is zoomed in to 200%, reflow is also needed. There is another issue here. It is mentioned in WCAG that fonts should not be enlarged using assistive technologies. Why is that? For example, for a mobile phone, if we need to enlarge the font, we usually enlarge the system font in the settings, which is a kind of assistive technology. Is this way of font enlargement not allowed?

[mraccess77]

I consider the three finger zoom on iOS an assistive technology that can't be used to meet SC 1.4.4.

The large text feature on iOS is different to me and is the typical way of meeting SC 1.4.4 on native apps and should also be considered to support meeting SC 1.4.4 for web content.

[patrickhlauke]

@Zoey0li i think you're slightly mashing up / conflating a few aspects here that don't directly relate to reflow (at least as currently written). Forget about the zoom percentage ... normatively, the reflow SC is concerned with viewport dimensions. And when changing font sizes alone in settings, or when using magnification/zoom in AT, the viewport dimensions don't change. Lastly, on mobile, generally there is no reflow behaviour when users pinch-zoom into web content, as mentioned in the reflow understanding.