From 29118150a9208321532ec90fa6a75d15180bf3ec Mon Sep 17 00:00:00 2001
From: streetturtle <streetturtle@gmail.com>
Date: Wed, 19 Dec 2018 22:39:53 -0500
Subject: first attempt to make it leakless

---
 run-shell/run-shell.lua | 179 ++++++++++++++++++++++++++++++------------------
 1 file changed, 114 insertions(+), 65 deletions(-)

(limited to 'run-shell')

diff --git a/run-shell/run-shell.lua b/run-shell/run-shell.lua
index e46d5a9..06fdd23 100644
--- a/run-shell/run-shell.lua
+++ b/run-shell/run-shell.lua
@@ -7,6 +7,10 @@
 -- @copyright 2018 Pavel Makhov
 -------------------------------------------------
 
+local capi = {
+    screen = screen,
+    client = client,
+}
 local awful = require("awful")
 local gfs = require("gears.filesystem")
 local wibox = require("wibox")
@@ -16,76 +20,121 @@ local completion = require("awful.completion")
 
 local run_shell = awful.widget.prompt()
 
-local w = wibox {
-    visible = false,
-    ontop = true,
-    height = 1060,
-    width = 1920
-}
 
-w:setup {
-    {
-        {
+local function get_screen(s)
+    return s and capi.screen[s]
+end
+
+
+local widget = {}
+
+function widget.new()
+    local widget_instance = {
+        _cached_wiboxes = {},
+    }
+
+
+    function widget_instance:_create_wibox()
+        local w = wibox {
+            visible = false,
+            ontop = true,
+            height = 1060,
+            width = 1920
+        }
+
+        w:setup {
             {
                 {
-                    text = '',
-                    font = 'Play 18',
-                    widget = wibox.widget.textbox,
+                    {
+                        {
+                            text = 'a',
+                            font = 'awesomewm-font 13',
+                            widget = wibox.widget.textbox,
+                        },
+                        id = 'icon',
+                        left = 10,
+                        layout = wibox.container.margin
+                    },
+                    {
+                        run_shell,
+                        left = 10,
+                        layout = wibox.container.margin,
+                    },
+                    id = 'left',
+                    layout = wibox.layout.fixed.horizontal
                 },
-                id = 'icon',
-                top = 9,
-                left = 10,
-                layout = wibox.container.margin
-            },
-            {
-                run_shell,
-                left = 10,
-                layout = wibox.container.margin,
+                widget = wibox.container.background,
+                bg = '#333333',
+                shape = function(cr, width, height)
+                    gears.shape.rounded_rect(cr, width, height, 3)
+                end,
+                shape_border_color = '#74aeab',
+                shape_border_width = 1,
+                forced_width = 200,
+                forced_height = 50
             },
-            id = 'left',
-            layout = wibox.layout.fixed.horizontal
-        },
-        widget = wibox.container.background,
-        bg = '#333333',
-        shape = function(cr, width, height)
-            gears.shape.rounded_rect(cr, width, height, 3)
-        end,
-        shape_border_color = '#74aeab',
-        shape_border_width = 1,
-        forced_width = 200,
-        forced_height = 50
-    },
-    layout = wibox.container.place
-}
+            layout = wibox.container.place
+        }
 
-local function launch(s)
-    awful.spawn.with_line_callback(os.getenv("HOME") .. "/.config/awesome/awesome-wm-widgets/run-shell/scratch_6.sh " .. tostring(awful.screen.focused().geometry.x), {
-        stdout = function(line)
-            w.visible = true
-            w.bgimage = '/tmp/i3lock-' .. line .. '.png'
-            awful.placement.top(w, { margins = { top = 20 }, parent = awful.screen.focused() })
-            awful.prompt.run {
-                prompt = "<b>Run</b>: ",
-                bg_cursor = '#74aeab',
-                textbox = run_shell.widget,
-                completion_callback = completion.shell,
-                exe_callback = function(...)
-                    run_shell:spawn_and_handle_error(...)
-                end,
-                history_path = gfs.get_cache_dir() .. "/history",
-                done_callback = function()
-                    --                    w.bgimage=''
-                    w.visible = false
-                    awful.spawn([[bash -c 'rm -f /tmp/i3lock*']])
-                end
-            }
-        end,
-        stderr = function(line)
-            naughty.notify { text = "ERR:" .. line }
-        end,
-    })
+        return w
+    end
+
+    function widget_instance:launch(s, c)
+--        c = c or capi.client.focus
+--        s = s or (c and c.screen or awful.screen.focused())
+        s = 1
+        naughty.notify{text = 'screen ' .. s}
+        if not self._cached_wiboxes[s] then
+            self._cached_wiboxes[s] = {}
+            naughty.notify{text = 'nope'}
+        end
+        if not self._cached_wiboxes[s][1] then
+            self._cached_wiboxes[s][1] = self:_create_wibox()
+            naughty.notify{text = 'nope'}
+        end
+        local w = self._cached_wiboxes[s][1]
+        awful.spawn.with_line_callback(os.getenv("HOME") .. "/.config/awesome/awesome-wm-widgets/run-shell/scratch_6.sh " .. tostring(awful.screen.focused().geometry.x), {
+            stdout = function(line)
+                w.visible = true
+                w.bgimage = '/tmp/i3lock-' .. line .. '.png'
+                awful.placement.top(w, { margins = { top = 20 }, parent = awful.screen.focused() })
+                awful.prompt.run {
+                    prompt = "<b>Run</b>: ",
+                    bg_cursor = '#74aeab',
+                    textbox = run_shell.widget,
+                    completion_callback = completion.shell,
+                    exe_callback = function(...)
+                        run_shell:spawn_and_handle_error(...)
+                    end,
+                    history_path = gfs.get_cache_dir() .. "/history",
+                    done_callback = function()
+                        --                    w.bgimage=''
+                        w.visible = false
+                        w.bgimage = ''
+                        awful.spawn([[bash -c 'rm -f /tmp/i3lock*']])
+                    end
+                }
+            end,
+            stderr = function(line)
+                naughty.notify { text = "ERR:" .. line }
+            end,
+        })
+
+    end
+
+    return widget_instance
+ end
+
+local function get_default_widget()
+    if not widget.default_widget then
+        widget.default_widget = widget.new()
+    end
+    return widget.default_widget
 end
 
-return {
-    launch = launch
-}
+function widget.launch(...)
+    return get_default_widget():launch(...)
+end
+
+
+return widget
-- 
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