Add first faders/resizers

lua/specs/init.lua

@@ -0,0 +1,66 @@
+local specs = {}
+
+function specs.show_specs(user_opts)
+    local opts = user_opts or {}
+
+    local row = vim.fn.winline()-1
+    local col = vim.fn.wincol()
+    local bufh = vim.api.nvim_create_buf(false, true)
+    win_id = vim.api.nvim_open_win(bufh, false, {
+        relative='win',
+        width = opts.width*2 + 1,
+        height = 1, 
+        col = col,
+        row = row,
+        style = 'minimal'
+    })
+    vim.api.nvim_win_set_option(win_id, "winblend", opts.blend)
+
+    local can_fade = true
+    local can_resize = true
+    local timer = vim.loop.new_timer()
+    vim.loop.timer_start(timer, opts.delay_ms, opts.inc_ms, vim.schedule_wrap(function()
+        if vim.api.nvim_win_is_valid(win_id) then
+            if can_fade then can_fade = opts.fader(win_id) end
+            if can_resize then can_resize = opts.resizer(win_id) end
+            if not (can_blend or can_resize) then
+                vim.loop.close(timer)
+                vim.api.nvim_win_close(win_id, true)
+                print("Timer done")
+            end
+        end
+    end))
+end
+
+-- Used as the default fader
+function specs.linear_fader(win_id)
+    local blend = vim.api.nvim_win_get_option(win_id, "winblend")
+    vim.api.nvim_win_set_option(win_id, "winblend", blend+1)
+    return (blend+1 < 100)
+end
+
+local function pulse_fader(win_id)
+end
+
+-- local function exp_fader()
+-- end
+
+function specs.shrink_resizer(win_id)
+    local config = vim.api.nvim_win_get_config(win_id)
+    config['width'] = config['width']-1
+    config['col'][false] = vim.fn.wincol()-config['width']/2
+    vim.api.nvim_win_set_config(win_id, config)
+    return (config['width']-1 > 0)
+end
+
+function specs.slide_resizer(win_id)
+    local config = vim.api.nvim_win_get_config(win_id)
+    config['width'] = config['width']-1
+    vim.api.nvim_win_set_config(win_id, config)
+    return (config['width']-1 > 0)
+end
+
+-- local function exp_resizer()
+-- end
+
+return specs