add Conversations widget

community/conversations-widget.lua

@@ -0,0 +1,142 @@
+-- name = "Conversations"
+
+local first_launch = true
+
+local no_tab = {}
+local messages_tab = {}
+local keys_tab = {}
+local folded_string = ""
+
+function on_resume()
+    -- AIO Launcher will call get_current automatically on resume
+    if (first_launch) then
+        first_launch = false
+        notify:get_current()
+    end
+end
+
+function on_notify_posted(n)
+    -- Skip not clearable and non messenger notifications
+    if (n.is_clearable == false) then return end
+    if (table_size(n.messages) == 0) then return end
+
+    no_tab[n.key] = n
+    redraw()
+end
+
+function on_notify_removed(n)
+    no_tab[n.key] = nil
+    redraw()
+end
+
+function on_apps_changed()
+    redraw()
+end
+
+function redraw()
+    if (table_size(no_tab) == 0) then
+        aio:hide_widget()
+        ui:show_text("Empty")
+    else
+        aio:show_widget()
+        draw_ui()
+    end
+end
+
+function draw_ui()
+    gen_messages_tab(no_tab)
+    gen_folded_string(no_tab)
+
+    ui:show_lines(messages_tab, nil, folded_string)
+end
+
+function on_click(idx)
+    notify:open(keys_tab[idx])
+end
+
+function gen_messages_tab(tab)
+    tree_tab = {}
+    tree_keys_tab = {}
+
+    -- Create tree table:
+    -- sender
+    --   |--> message1 (from WhatsApp)
+    --   `--> message2 (from Telegram)
+    -- ...
+    for _,notify in pairs(tab) do
+        for _,message in pairs(notify.messages) do
+            local sender = format_sender(message.sender)
+            local message = format_message(message.text, notify.package)
+
+            if tree_tab[sender] == nil then
+                tree_tab[sender] = {}
+                tree_keys_tab[sender] = {}
+            end
+
+            table.insert(tree_tab[sender], message)
+            table.insert(tree_keys_tab[sender], notify.key)
+        end
+    end
+
+    messages_tab = {}
+    keys_tab = {}
+
+    -- Flatten tree table
+    for sender,messages in pairs(tree_tab) do
+        table.insert(messages_tab, sender)
+        for _,message in pairs(messages) do
+            table.insert(messages_tab, message)
+        end
+    end
+
+    -- Create correspondig key table
+    for _,keys in pairs(tree_keys_tab) do
+        table.insert(keys_tab, "NO_KEY")
+        for _,key in pairs(keys) do
+            saved_key = key
+            table.insert(keys_tab, key)
+        end
+    end
+end
+
+function gen_folded_string(tab)
+    local msg_num = 0
+
+    for _,notify in pairs(tab) do
+        msg_num = msg_num + table_size(notify.messages)
+    end
+
+    folded_string = "Messages: "..msg_num
+end
+
+function format_sender(sender)
+    return "<b>"..sender.."</b>"
+end
+
+function format_message(message, package)
+    local app_name = apps:get_name(package)
+    local app_color = apps:get_color(package)
+    local circle = "<font color=\""..app_color.."\">●</font>"
+
+    return circle.." "..html_escape(message)
+end
+
+-- Utils --
+
+function html_escape(s)
+    return (string.gsub(s, "[}{\">/<'&]", {
+        ["&"] = "&amp;",
+        ["<"] = "&lt;",
+        [">"] = "&gt;",
+        ['"'] = "&quot;",
+        ["'"] = "&#39;",
+        ["/"] = "&#47;"
+    }))
+end
+
+function table_size(T)
+  local count = 0
+  for _ in pairs(T) do count = count + 1 end
+  return count
+end
+