rework for ui nofitications (#4630, #4615)

scripts/lua/modules/notifications/notification_ui.lua

@@ -0,0 +1,77 @@
+--
+-- (C) 2020 - ntop.org
+--
+require("lua_utils")
+local json = require "dkjson"
+local template = require "template_utils"
+
+local notification_ui = {}
+notification_ui.__index = notification_ui
+
+NotificationLevels = {
+   SUCCESS = {
+      icon = "fa-check-circle",
+      bg_color = "success",
+      title_text_color = "text-dark",
+      fill_color = "#28a745",
+   },
+   INFO = {
+      icon = "fa-info-circle",
+      bg_color = "info",
+      title_text_color = "text-white",
+      fill_color = "#17a2b8",
+   },
+   WARNING = {
+      icon = "fa-exclamation-circle",
+      bg_color = "warning",
+      title_text_color = "text-dark",
+      fill_color = "#ffc107",
+   },
+   DANGER = {
+      icon = "fa-exclamation-triangle",
+      bg_color = "danger",
+      title_text_color = "text-dark",
+      fill_color = "#dc3545",
+   },
+}
+
+notification_ui.NotificationLevels = NotificationLevels
+
+--- Create an instance of an AlertNotification class
+-- @param id The notification id
+-- @param title The title shows at the top
+-- @param description The notification description (its body)
+-- @param level Use different style: danger|info|warning|success
+-- @param action The link where the notification brings { url = "#", title = "Click Here!"}
+-- @return An AlertNotification instance
+function notification_ui:create(id, title, description, level, action, dismissable)
+
+   local this = {
+       id              = id,
+       title           = (title or i18n("info")),
+       description     = (description or i18n("description")),
+       level           = (level or NotificationLevels.INFO),
+       action          = (action or nil),
+       dismissable     = dismissable or false
+   }
+
+   setmetatable(this, notification_ui)
+
+   return this
+end
+
+-- Return the rendered HTML template for the notification
+-- to be displayed. The return string can be printed inside the page
+-- with the `print` method
+function notification_ui:render()
+
+   local context = {
+       notification = self
+   }
+
+   -- Generate the template from the notification.template file
+   return template.gen('pages/components/notification.template', context)
+end
+
+
+return notification_ui