Ticket #2531137 (accepted task)
Reporter Sylvain Prat |
Opened: 09/22/11 Last modified: 09/24/12 Status: accepted Type: task |
Owner  Derek Gathright |
Target Release: BACKLOG Priority: P3 (normal) |
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| Summary: | Document appropriate strategy for contentBox size changes | ||
| Description: | Inside a scrollview, I have some items that expand/collapse via a javascript css class toggle. However, when my items expand, the scrollview scroll limits do not change, so the bottom of the scrolled As a workaround, since the event triggering the content box's size change is a click event, I registered a click handler on the content box that call the scrollview's syncUI() method. However, I think |
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| Type: | task | Observed in Version: | 3.4.0 |
| Component: | ScrollView | Severity: | S3 (normal) |
| Assigned To: | Derek Gathright | Target Release: | BACKLOG |
| Location: | Example | Priority: | P3 (normal) |
| Tags: | scrollview, scroll limits, dynamic content, size | Relates To: | |
| Browsers: | N/A | ||
| URL: | |||
| Test Information: | |||
Change History
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Posted: 09/22/11
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Posted: 09/23/11
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Posted: 09/23/11
I agree with the design decision, that's justifiable. However, since I spent much time 1. figuring out why the scrollview didn't behave as I expected 2. looking for a workaround, I think it deserves a mention in the component documentation (the one at http://yuilibrary.com/yui/docs/scrollview/) or even in the examples, maybe with different workarounds: Finally, I think it's not very different from the "disable link behavior" examples. |
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Posted: 09/23/11
Yeah, I agree. I think it needs an example (along the lines of the yui3/src/scrollview/tests/manual/svtestbed.html test file) |
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Posted: 03/26/12
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Posted: 03/27/12
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Posted: 07/21/12
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Posted: 08/1/12
Moving 3.7.0 bugs to 3.6.x for triage. |
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Posted: 08/7/12
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Posted: 09/19/12
Moving from 3.6.x to 3.CURRENT.NEXT |
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Posted: 09/24/12
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Scrollview used to do this, but there's no clean/performant way to monitor changes in the contentBox size across all browsers [ you could add content/remove content/change CSS/hide/show something ]. It used to do it by listening for DOMSubtreeModified on browsers which supported it, but this event fires way to often, and fires when dimensions may not change, and leads to difference in behavior across browsers.
Hence invoking syncUI() is the designed way to go, when you do something which changes the size of the scrollView's content.