If you click in the "empty" area of the scroll bar (when visible) it scrolls just 1 pixel per click!
Steps to Reproduce:
1. Open whatever module (Writer, Calc, Impress or Draw)
2. Import an image (to have the SideBar full of sections and thus scrollable)
3. Expand all the sections (by clicking on + on every one)
4. Click on the empty area of the scroll bar
It scrolls one pixel per click.
It should scroll of one graphical page, meaning the exact amount of pixels shown, if available, otherwise to the end of the bar.
User Profile Reset: No
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:51.0) Gecko/20100101 Firefox/51.0
Created attachment 131079 [details]
See where to click to reproduce the Bug
Hmm, confirming 1px scroll on click.
On Windows 8.1 Ent 64-bit en-US with
Version: 18.104.22.168 (x64)
Build ID: 7074905676c47b82bbcfbea1aeefc84afe1c50e1
CPU Threads: 8; OS Version: Windows 6.29; UI Render: default; Layout Engine: new;
Locale: en-US (en_US); Calc: group
Also, on Windows build the scrollbar has end buttons, clicking those moves the pane 1px-so assume that is intentional.
Click + hold + drag on the "slider" scrolls smoothly. And mouse "wheel" scroll is reasonably smooth at about ~5px increments. Not sure this needs any effort, but lets ask the dev.
@Thomaž, should the scrollbar button widgets or a click move in larger increments? Even adjust increment to match the length of the pane exposed (i.e. length of the gray slider)?
*** This bug has been marked as a duplicate of bug 84704 ***