Description of problem: Horizontal scrolling using the scrollbar doesn't work in message preview or when the message is opened, if the message is too wide to fit into the window. Horizontal scrolling using left/right arrow keys on the keyboard works. Version-Release number of selected component (if applicable): evolution-3.22.1-2.fc25.x86_64 How reproducible: Always. Steps to Reproduce: 1. Preview/view message that is too wide. 2. Try scrolling left/right using the scrollbar. 3. Nothing happens. Actual results: No scrolling. Expected results: Should work. Additional info: I do not remember this being a problem in F24.
I can confirm the issue. It look like it is something in the Evolution code as it does work for other WebKitGTK+ based apps (like Epiphany).
Some additional observations: a) mouse wheel works fine (when hovering mouse above the scroll bar) b) when the vertical scrollbar is at the very bottom, then it works too c) when I disable overlay scrollbars [1], then it works no matter what Nonetheless Tom is right, this is something in the evolution. [1] run evolution as: $ GTK_OVERLAY_SCROLLING=0 evolution
Created attachment 1223432 [details] /tmp/a.html
Created attachment 1223434 [details] test-wk2.c This is a reproducer with plain WebKitWebView. The trick is to use iframe. Steps: a) save the previous attachment as /tmp/a.html file b) compile and run this test-wk2.c as written on the first line of the file Make sure the overlay scrolling is not off when testing.
Yeah I think it's WebKit's fault. Can you report it upstream please?
Right, it makes more sense there. I just filled: https://bugs.webkit.org/show_bug.cgi?id=165056
*** Bug 1414991 has been marked as a duplicate of this bug. ***