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vim-patch:9.1.0215: Half-page scrolling does not support smooth-scrolling

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Problem:  Page-wise scrolling with Ctrl-D/Ctrl-U implements
          it's own logic to change the topline and cursor.
          More logic than necessary for scrolling with Ctrl-F/Ctrl-B
          was removed in patch 9.1.0211.
Solution: Re-use the logic from Ctrl-E/Ctrl-Y/Ctrl-F/Ctrl-B while
          staying backward compatible as much as possible.
          Restore some of the logic that determined how many lines will
          be scrolled (Luuk van Baal)

5a2e3ec9ac
This commit is contained in:
Luuk van Baal
2024-03-28 10:20:45 +01:00
parent 4147302f4b
commit 2f638c0ac6
11 changed files with 159 additions and 178 deletions
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32
test/old/testdir/test_edit.vim
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@@ -1312,15 +1312,15 @@ func Test_edit_PAGEUP_PAGEDOWN()
call feedkeys("i\<PageDown>\<esc>", 'tnix')
call assert_equal([0, 30, 1, 0], getpos('.'))
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 30, 1, 0], getpos('.'))
call assert_equal([0, 29, 1, 0], getpos('.'))
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 23, 1, 0], getpos('.'))
call assert_equal([0, 21, 1, 0], getpos('.'))
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 15, 1, 0], getpos('.'))
call assert_equal([0, 13, 1, 0], getpos('.'))
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 10, 1, 0], getpos('.'))
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 10, 11, 0], getpos('.'))
call assert_equal([0, 2, 11, 0], getpos('.'))
" <S-Up> is the same as <PageUp>
" <S-Down> is the same as <PageDown>
call cursor(1, 1)
@@ -1335,28 +1335,28 @@ func Test_edit_PAGEUP_PAGEDOWN()
call feedkeys("i\<S-Down>\<esc>", 'tnix')
call assert_equal([0, 30, 1, 0], getpos('.'))
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 30, 1, 0], getpos('.'))
call assert_equal([0, 29, 1, 0], getpos('.'))
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 23, 1, 0], getpos('.'))
call assert_equal([0, 21, 1, 0], getpos('.'))
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 15, 1, 0], getpos('.'))
call assert_equal([0, 13, 1, 0], getpos('.'))
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 10, 1, 0], getpos('.'))
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 10, 11, 0], getpos('.'))
call assert_equal([0, 2, 11, 0], getpos('.'))
set nostartofline
call cursor(30, 11)
norm! zt
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 30, 11, 0], getpos('.'))
call assert_equal([0, 29, 11, 0], getpos('.'))
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 23, 11, 0], getpos('.'))
call assert_equal([0, 21, 11, 0], getpos('.'))
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 15, 11, 0], getpos('.'))
call assert_equal([0, 13, 11, 0], getpos('.'))
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 10, 11, 0], getpos('.'))
call feedkeys("A\<PageUp>\<esc>", 'tnix')
call assert_equal([0, 10, 11, 0], getpos('.'))
call assert_equal([0, 2, 11, 0], getpos('.'))
call cursor(1, 1)
call feedkeys("A\<PageDown>\<esc>", 'tnix')
call assert_equal([0, 9, 11, 0], getpos('.'))
@@ -1373,15 +1373,15 @@ func Test_edit_PAGEUP_PAGEDOWN()
call cursor(30, 11)
norm! zt
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 30, 11, 0], getpos('.'))
call assert_equal([0, 29, 11, 0], getpos('.'))
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 23, 11, 0], getpos('.'))
call assert_equal([0, 21, 11, 0], getpos('.'))
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 15, 11, 0], getpos('.'))
call assert_equal([0, 13, 11, 0], getpos('.'))
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 10, 11, 0], getpos('.'))
call feedkeys("A\<S-Up>\<esc>", 'tnix')
call assert_equal([0, 10, 11, 0], getpos('.'))
call assert_equal([0, 2, 11, 0], getpos('.'))
call cursor(1, 1)
call feedkeys("A\<S-Down>\<esc>", 'tnix')
call assert_equal([0, 9, 11, 0], getpos('.'))