screen saver(s)

screenSaver/autorun/saver.lua

@@ -0,0 +1,72 @@
+local Config = require('opus.config')
+local Util   = require('opus.util')
+
+local fs         = _G.fs
+local kernel     = _G.kernel
+local multishell = _ENV.multishell
+local window     = _G.window
+
+if not multishell then
+    return
+end
+
+local config = Config.load('saver', {
+	enabled = true,
+    timeout = 60,
+    random = true,
+    specific = nil,
+})
+
+local BASE   = '/packages/screenSaver'
+local SAVERS = fs.combine(BASE, 'savers')
+
+local timer = config.enabled and os.startTimer(config.timeout)
+local saverUid
+
+local function showScreenSaver()
+    timer = nil
+
+    local files = fs.list(SAVERS)
+    local saver = config.specific or fs.combine(SAVERS, files[math.random(1, #files)])
+
+    local w, h = kernel.terminal.getSize()
+    local win = window.create(kernel.terminal, 1, 1, w, h, true)
+    saverUid = multishell.openTab({
+        path = saver,
+        focused = true,
+        title = 'Saver',
+        window = win,
+    })
+end
+
+kernel.hook({ 'mouse_up', 'mouse_drag', 'key_up' }, function()
+    if config.enabled then
+        if timer then
+            os.cancelTimer(timer)
+            timer = os.startTimer(config.timeout)
+        elseif saverUid then
+            multishell.terminate(saverUid)
+            saverUid = nil
+            timer = os.startTimer(config.timeout)
+        end
+    end
+end)
+
+kernel.hook('timer', function(_, eventData)
+    if timer and eventData[1] == timer then
+        showScreenSaver()
+    end
+end)
+
+kernel.hook('config_update', function(_, eventData)
+    if eventData[1] == 'saver' then
+        Util.merge(config, eventData[2])
+        if timer then
+            os.cancelTimer(timer)
+            timer = nil
+        end
+        if config.enabled then
+            timer = os.startTimer(config.timeout)
+        end
+    end
+end)