From b77413ff8f59f380612074f0c9bd49093d8db695 Mon Sep 17 00:00:00 2001
From: Mike Vink <mike@pionative.com>
Date: Sun, 19 Jan 2025 13:52:52 +0100
Subject: Squashed 'mut/neovim/pack/plugins/start/blink.cmp/' content from
 commit 1cc3b1a

git-subtree-dir: mut/neovim/pack/plugins/start/blink.cmp
git-subtree-split: 1cc3b1a908fbcfd15451c4772759549724f38524
---
 lua/blink/cmp/lib/window/scrollbar/win.lua | 107 +++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 lua/blink/cmp/lib/window/scrollbar/win.lua

(limited to 'lua/blink/cmp/lib/window/scrollbar/win.lua')

diff --git a/lua/blink/cmp/lib/window/scrollbar/win.lua b/lua/blink/cmp/lib/window/scrollbar/win.lua
new file mode 100644
index 0000000..9ac3193
--- /dev/null
+++ b/lua/blink/cmp/lib/window/scrollbar/win.lua
@@ -0,0 +1,107 @@
+--- Manages creating/updating scrollbar gutter and thumb windows
+
+--- @class blink.cmp.ScrollbarWin
+--- @field enable_gutter boolean
+--- @field thumb_win? number
+--- @field gutter_win? number
+--- @field buf? number
+---
+--- @field new fun(opts: blink.cmp.ScrollbarConfig): blink.cmp.ScrollbarWin
+--- @field is_visible fun(self: blink.cmp.ScrollbarWin): boolean
+--- @field show_thumb fun(self: blink.cmp.ScrollbarWin, geometry: blink.cmp.ScrollbarGeometry)
+--- @field show_gutter fun(self: blink.cmp.ScrollbarWin, geometry: blink.cmp.ScrollbarGeometry)
+--- @field hide_thumb fun(self: blink.cmp.ScrollbarWin)
+--- @field hide_gutter fun(self: blink.cmp.ScrollbarWin)
+--- @field hide fun(self: blink.cmp.ScrollbarWin)
+--- @field _make_win fun(self: blink.cmp.ScrollbarWin, geometry: blink.cmp.ScrollbarGeometry, hl_group: string): number
+--- @field redraw_if_needed fun(self: blink.cmp.ScrollbarWin)
+
+--- @type blink.cmp.ScrollbarWin
+--- @diagnostic disable-next-line: missing-fields
+local scrollbar_win = {}
+
+function scrollbar_win.new(opts) return setmetatable(opts, { __index = scrollbar_win }) end
+
+function scrollbar_win:is_visible() return self.thumb_win ~= nil and vim.api.nvim_win_is_valid(self.thumb_win) end
+
+function scrollbar_win:show_thumb(geometry)
+  -- create window if it doesn't exist
+  if self.thumb_win == nil or not vim.api.nvim_win_is_valid(self.thumb_win) then
+    self.thumb_win = self:_make_win(geometry, 'BlinkCmpScrollBarThumb')
+  else
+    -- update with the geometry
+    local thumb_existing_config = vim.api.nvim_win_get_config(self.thumb_win)
+    local thumb_config = vim.tbl_deep_extend('force', thumb_existing_config, geometry)
+    vim.api.nvim_win_set_config(self.thumb_win, thumb_config)
+  end
+
+  self:redraw_if_needed()
+end
+
+function scrollbar_win:show_gutter(geometry)
+  if not self.enable_gutter then return end
+
+  -- create window if it doesn't exist
+  if self.gutter_win == nil or not vim.api.nvim_win_is_valid(self.gutter_win) then
+    self.gutter_win = self:_make_win(geometry, 'BlinkCmpScrollBarGutter')
+  else
+    -- update with the geometry
+    local gutter_existing_config = vim.api.nvim_win_get_config(self.gutter_win)
+    local gutter_config = vim.tbl_deep_extend('force', gutter_existing_config, geometry)
+    vim.api.nvim_win_set_config(self.gutter_win, gutter_config)
+  end
+
+  self:redraw_if_needed()
+end
+
+function scrollbar_win:hide_thumb()
+  if self.thumb_win and vim.api.nvim_win_is_valid(self.thumb_win) then
+    vim.api.nvim_win_close(self.thumb_win, true)
+    self.thumb_win = nil
+    self:redraw_if_needed()
+  end
+end
+
+function scrollbar_win:hide_gutter()
+  if self.gutter_win and vim.api.nvim_win_is_valid(self.gutter_win) then
+    vim.api.nvim_win_close(self.gutter_win, true)
+    self.gutter_win = nil
+    self:redraw_if_needed()
+  end
+end
+
+function scrollbar_win:hide()
+  self:hide_thumb()
+  self:hide_gutter()
+end
+
+function scrollbar_win:_make_win(geometry, hl_group)
+  if self.buf == nil or not vim.api.nvim_buf_is_valid(self.buf) then self.buf = vim.api.nvim_create_buf(false, true) end
+
+  local win_config = vim.tbl_deep_extend('force', geometry, {
+    style = 'minimal',
+    focusable = false,
+    noautocmd = true,
+  })
+  local win = vim.api.nvim_open_win(self.buf, false, win_config)
+  vim.api.nvim_set_option_value('winhighlight', 'Normal:' .. hl_group .. ',EndOfBuffer:' .. hl_group, { win = win })
+  return win
+end
+
+local redraw_queued = false
+function scrollbar_win:redraw_if_needed()
+  if redraw_queued or vim.api.nvim_get_mode().mode ~= 'c' then return end
+
+  redraw_queued = true
+  vim.schedule(function()
+    redraw_queued = false
+    if self.gutter_win ~= nil and vim.api.nvim_win_is_valid(self.gutter_win) then
+      vim.api.nvim__redraw({ win = self.gutter_win, flush = true })
+    end
+    if self.thumb_win ~= nil and vim.api.nvim_win_is_valid(self.thumb_win) then
+      vim.api.nvim__redraw({ win = self.thumb_win, flush = true })
+    end
+  end)
+end
+
+return scrollbar_win
-- 
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