1 files changed, 93 insertions, 0 deletions
diff --git a/plugins/typingspeed.lua b/plugins/typingspeed.lua
new file mode 100644
index 0000000..62e44ef
--- /dev/null
+++ b/plugins/typingspeed.lua
@@ -0,0 +1,93 @@
+-- mod-version:2
+
+local core = require "core"
+local style = require "core.style"
+local common = require "core.common"
+local config = require "core.config"
+local DocView = require "core.docview"
+
+if common["merge"] then
+	config.plugins.typingspeed = common.merge({
+		-- characters that should be counted as word boundary
+		word_boundaries = "[%p%s]",
+	}, config.plugins.keystats)
+else
+	config.plugins.typingspeed = {
+		-- characters that should be counted as word boundary
+		word_boundaries = "[%p%s]",
+	}
+end
+
+local chars = 0
+local chars_last = 0
+local words = 0
+local words_last = 0
+local time_last = 0
+local started_word = false
+local cpm = 0
+local wpm = 0
+
+core.add_thread(function()
+	while true do
+		local t = os.date("*t")
+		if t.sec <= time_last then
+			words_last = words
+			words = 0
+			chars_last = chars
+			chars = 0
+			time_last = t.sec
+		end
+		wpm = words_last * (1-(t.sec)/60) + words
+		cpm = chars_last * (1-(t.sec)/60) + chars
+		coroutine.yield(1)
+	end
+end)
+
+local on_text_input = DocView.on_text_input
+function DocView:on_text_input(text, idx)
+	chars = chars + 1
+	if string.find(text, config.plugins.typingspeed.word_boundaries) then
+		if started_word then
+			words = words + 1
+			started_word = false
+		end
+	else
+		started_word = true
+	end
+	on_text_input(self, text, idx)
+end
+
+if core.status_view["add_item"] then
+	core.status_view:add_item(
+		function()
+			return core.active_view and getmetatable(core.active_view) == DocView
+		end,
+		"keystats:stats",
+		core.status_view.Item.RIGHT,
+		function()
+			return {
+				style.text,
+				string.format("%.0f CPM / %.0f WPM", cpm, wpm)
+			}
+		end,
+		nil,
+		1,
+		"characters / words per minute"
+	).separator = core.status_view.separator2
+else
+	local get_items = core.status_view.get_items
+	function core.status_view:get_items()
+		local left, right = get_items(self)
+
+		local t = {
+			style.text, string.format("%.0f CPM / %.0f WPM", cpm, wpm),
+			style.dim, self.separator2
+		}
+
+		for i, item in ipairs(t) do
+			table.insert(right, i, item)
+		end
+
+		return left, right
+	end
+end