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Scrolling up sometimes fails #18
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Confirmed: Touchpad scrolling up using a Samsung Galaxy Tab S2 jumps back to the end after half a second, no matter if the scrolling gesture is still in progress or if the finger is up again. |
I'm also experiencing this on FF 55 (jumps back to the bottom if not scrolling further than a certain amount). |
This is really anoying, I'm using FF57 on Debian and current FF on Android and cannot see anything but the last few messages, because the site scrolls to the last message after less than a second. |
What do you mean with desktop? The chat overview where you can select the chat/contact? |
On my Desktop Computer. While on my Tablet Computer (Firefox@Android) I cannot use my cursor buttons because it hase none. |
+1 I'm running Threema Web 1.8.2 on Linux Mint 18 in Firefox 58.0.2 (64-bit). It happens when I'm scrolling with my notebook's tablet as well as with my Logitech mouse. |
@studersi does the problem also occur with Chromium? Maybe it is triggered by some smooth scrolling settings in Firefox... |
@dbrgn You're right, it does seem to be related to smooth scrolling to an extent. I don't have Chromium installed but I do have Google Chrome [Version 64.0.3282.186 (Official Build) (64-bit)]. It scrolls just fine on Chrome. In Firefox, smooth scrolling is disabled. When I enable smooth scrolling, the problem disappears almost completely. It's still noticeable sometimes but it just seems to stutter before scrolling as planned. Very rarely, it stays at the bottom of the conversation. |
I can kind of confirm that It has to do with smooth scrolling. |
If the last message in the conversation is an animgif that is playing, then scrolling up does not work in Firefox 58. |
Changing line 39 in messenger.conversation.html to |
On my Macbook scrolling with the touchpad also fails. Workaround: use the cursor key to scroll up a bit first, after that scrolling works with the touchpad as long as I don't scroll down to the end of the chat again. When I scroll back down to the end of the chat the problem occurs again. |
Which browser is that? |
Current Firefox on Mac |
@heckenmann thanks, that improves things slightly 🙂 there's probably some issue with the underlying library that we need to debug. |
Scrolling up in a chat especially fails, if a) the phone is on LTE (no Wifi) and b) there is an image in the chat which is still loading. Loading takes about one minute, during that time, scrolling up is not possible (OS: Windows 10, Browser: Firefox). Kind of annoying, since I cannot read chat messages. Workaround: Setting Webbrowserscaling to 50%, so I can read messages further up while images are loading. |
@ventilator note that you can always grab the scrollbar with the mouse to scroll. |
@dbrgn This won't help, grabbing and holding the scrollbar lets the interface jump up to the scroll bar position and down to the end of the thread with a frequency so fast, that reading is not possible |
@ventilator hm, that shouldn't be the case. Are you a beta user, or on version 1.8.2? |
1.8.2. But I tried, but cannot reproduce the effect at another PC at home, which has a faster internet connection. I will try to make a screencast of the effect once I have access again to the laptop at work which has a somewhat slower or at least filtered, firewalled corporate internet connection. |
@dbrgn I can also affirm that grabbing the scrollbar with the mouse did never work whenever I encountered this problem. |
I could always grab the scrollbar with the mouse and move it "hard enough" to the top. |
Some more insights (2.0.0-beta.7):
in short: it all seems like a demotivation campaign by annoying the user to stick to the recent stuff and not scroll back… 😜 Fedora 28, Firefox 61 |
E.g. scrolling up does not work with the "home" key if conversation is scrolled all the way to the bottom.
I also heard reports that scrolling fails with a touchpad.
Most probably has to do with the angularjs-scroll-glue library.
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