add plugin select_colorscheme

2 files changed, 129 insertions, 0 deletions

diff --git a/README.md b/README.md
index cd0347e..004fde3 100644
--- a/README.md
+++ b/README.md
@@ -126,6 +126,7 @@ to something other than a raw file it should be marked with an asterisk.*
 | [`regexreplacepreview`](plugins/regexreplacepreview.lua?raw=1)                                                 | Allows for you to write a regex and its replacement in one go, and live preview the results.                                                                                                                                                                                                    |
 | [`restoretabs`](plugins/restoretabs.lua?raw=1)                                                                 | Keep a list of recently closed tabs, and restore the tab in order on cntrl+shift+t.                                                                                                                                                                                                             |
 | [`scalestatus`](plugins/scalestatus.lua?raw=1)                                                                 | Displays current scale (zoom) in status view (depends on scale plugin)                                                                                                                                                                                                                          |
+| [`select_colorscheme`](plugins/select_colorscheme.lua?raw=1)                                                   | Select a color theme, like VScode, Sublime Text.(plugin saves changes)                                                                                                                                                                                                                          |
 | [`selectionhighlight`](plugins/selectionhighlight.lua?raw=1)                                                   | Highlights regions of code that match the current selection *([screenshot](https://user-images.githubusercontent.com/3920290/80710883-5f597c80-8ae7-11ea-97f0-76dfacc08439.png))*                                                                                                               |
 | [`smallclock`](plugins/smallclock.lua?raw=1)                                                                   | Displays the current time in the corner of the status view                                                                                                                                                                                                                                      |
 | [`smoothcaret`](plugins/smoothcaret.lua?raw=1)                                                                 | Smooth caret animation *([gif](https://user-images.githubusercontent.com/20792268/139006049-a0ba6559-88cb-49a7-8077-4822445b4a1f.gif))*                                                                                                                                                         |
diff --git a/plugins/select_colorscheme.lua b/plugins/select_colorscheme.lua
new file mode 100644
index 0000000..f20d949
--- /dev/null
+++ b/plugins/select_colorscheme.lua
@@ -0,0 +1,128 @@
+-- mod-version:2 -- lite-xl 2.0
+local core = require "core"
+local command = require "core.command"
+local common = require "core.common"
+local style = require "core.style"
+local CommandView = require "core.commandview"
+
+-- ----------------------------------------------------------------
+local PATH_CONFIG = USERDIR .. "/color_settings.lua"
+
+local Settings = {}
+Settings.color_scheme = ""
+Settings.color_list = {}
+local color_default = {name = "Default", module = "core.style"}
+local plugin_enable = false
+
+--  =========================Proxy method==========================
+local move_suggestion_idx = CommandView.move_suggestion_idx
+
+function CommandView:move_suggestion_idx(dir)
+  move_suggestion_idx(self, dir)
+  if plugin_enable then
+    local color_name = self.suggestions[self.suggestion_idx].text
+    Settings:change_color(color_name)
+  end
+end
+
+local on_quit_project = core.on_quit_project
+
+function core.on_quit_project()
+  Settings:save_settings()
+  on_quit_project()
+end
+-- ----------------------------------------------------------------
+
+function Settings:get_color_list()
+  return self.color_list
+end
+
+function Settings:init()
+  self:load_settings()
+  self:make_color_list()
+end
+
+function Settings:make_color_list()
+  for _, root_dir in ipairs {DATADIR, USERDIR} do
+    local plugin_dir = root_dir .. "/colors"
+    for _, filename in ipairs(system.list_dir(plugin_dir) or {}) do
+      table.insert(self.color_list, filename:match("(.-)%.lua$"))
+    end
+  end
+  table.insert(self.color_list, color_default.name)
+end
+
+function Settings:is_change_color(color_name)
+  return not (self.color_scheme == color_name)
+end
+
+function Settings:get_color_scheme()
+  return (self.color_scheme == "") and color_default.name or self.color_scheme
+end
+
+local function make_color_module_name(name)
+  return (name == color_default.name) and color_default.module or "colors."..name  
+end
+
+function Settings:change_color(name)
+    if self:is_change_color(name) then
+      core.reload_module(make_color_module_name(name))
+      self.color_scheme = name
+    end
+end
+
+function Settings:save_settings()
+  local fp = io.open(PATH_CONFIG, "w")
+  if fp then
+    fp:write(self.color_scheme)
+    fp:close()
+  end
+end
+
+function Settings:load_settings()
+  local fp = io.open(PATH_CONFIG, "r")
+  if fp then
+    local name = fp:read("*a")
+    core.reload_module(make_color_module_name(name))
+    Settings.color_scheme = name
+    fp:close()
+  end
+end
+
+-- -------------------------------Utility--------------------------
+local function table_remove_value(list, value)
+  for i=1, #list do
+    if list[i] == value then
+      table.remove(list, i)
+      break
+    end
+  end
+end
+-- ----------------------------------------------------------------
+local function normalize_color_list(list)
+  table_remove_value(list, Settings:get_color_scheme())
+  table.sort(list, function(a, b) return string.lower(a) > string.lower(b) end)
+  return {Settings:get_color_scheme(), table.unpack(list)}
+end
+--  =========================Add Commands==========================
+local color_scheme_submit = function(text, item)
+  if item then
+    Settings:change_color(item.text)
+    plugin_enable = false
+  end
+end
+
+local color_scheme_suggest = function(text)
+  plugin_enable = true
+  local res_list = common.fuzzy_match(Settings:get_color_list(), text)
+  return normalize_color_list(res_list)
+end
+
+command.add(nil, {
+    ["ui:color scheme"] = function()
+      core.command_view:enter("Select color scheme", color_scheme_submit, color_scheme_suggest)
+    end,
+  })
+-- ----------------------------------------------------------------
+
+Settings:init()