feat(preview): preview window label come back again with best performance!

[linrongbin16]

Regresion test

Platforms

• [x] windows
• [ ] macOS
• [x] linux

Tasks

• [x] FzfxFiles
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-U/CTRL-R to switch between restricted/unrestricted mode, and the lines count is consistent when press multiple times.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to open file, and open the test/hello world.txt, test/goodbye world/goodbye.lua files.
  • Both fd and find works.
• [x] FzfxLiveGrep
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-U/CTRL-R to switch between restricted/unrestricted mode, and the lines count is consistent when press multiple times.
  • Use -w to match word only, use -g *.lua to search only lua files.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to open file, and open the test/hello world.txt, test/goodbye world/goodbye.lua files.
  • Both rg and grep works.
• [x] FzfxBuffers
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-D to delete buffers, and delete the test/hello world.txt, test/goodbye world/goodbye.lua buffers.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to open file.
• [x] FzfxGFiles
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-U/CTRL-W to switch between workspace/current folder mode.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to open file.
• [x] FzfxGStatus
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-U/CTRL-W to switch between workspace/current folder mode.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to open file.
  • Both with/without delta works.
• [x] FzfxGBranches
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-R/CTRL-O to switch between local/remote branches.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to checkout branch.
• [x] FzfxGCommits
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-U/CTRL-A to switch between git repo commits/current buffer commits.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to copy commit hash.
  • Both with/without delta works.
• [x] FzfxGBlame
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to copy commit hash.
  • Both with/without delta works.
• [x] FzfxLspDiagnostics
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-U/CTRL-W to switch between workspace/current buffer diagnostics.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to open file.
• [x] FzfxLspDefinitions, FzfxLspTypeDefinitions, FzfxLspReferences, FzfxLspImplementations
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Go to definitions/references (this is the most 2 easiest use case when developing this lua plugin with lua_ls).
  • Press ESC to quit, ENTER to open file.
• [x] FzfxCommands
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-U/CTRL-E/CTRL-A to switch between user/ex/all vim commands.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to feed vim command.
• [x] FzfxKeyMaps
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-O/CTRL-I/CTRL-A/CTRL-V to switch between normal/insert/visual/all vim key mappings.
  • Use V/W/P variants (visual selection, cursor word, yank text).
  • Press ESC to quit, ENTER to feed vim keys.
• [x] FzfxFileExplorer
  • Press CTRL-N/CTRL-P to move down/up and preview contents.
  • Press CTRL-U/CTRL-R to switch between filter/include hidden files mode.
  • Press ALT-L/ALT-H to cd into folder and cd upper folder.
  • Press ESC to quit, ENTER to open file, and open the test/hello world.txt, test/goodbye world/goodbye.lua files.
  • All eza/lsd/ls works.

[codecov[bot]]

Codecov Report

Attention: 55 lines in your changes are missing coverage. Please review.

Files	Coverage Δ
lua/fzfx.lua	80.43% <100.00%> (+0.43%)	:arrow_up:
lua/fzfx/config.lua	86.72% <100.00%> (+0.31%)	:arrow_up:
lua/fzfx/fzf_helpers.lua	90.16% <100.00%> (+2.46%)	:arrow_up:
lua/fzfx/server.lua	90.54% <66.66%> (-0.48%)	:arrow_down:
lua/fzfx/utils.lua	81.11% <56.89%> (-4.05%)	:arrow_down:
lua/fzfx/general.lua	53.13% <45.28%> (+3.42%)	:arrow_up:

... and 1 file with indirect coverage changes

:loudspeaker: Thoughts on this report? Let us know!