#497 instantly launch pocket program, block network dependent apps until connected

pocket/iocontrol.lua

@@ -342,10 +342,8 @@ function iocontrol.report_link_state(state, sv_addr, api_addr)
         io.ps.publish("crd_conn_quality", 0)
     end
 
-    if state == LINK_STATE.LINKED then
+    if sv_addr then io.ps.publish("sv_addr", sv_addr) end
-        io.ps.publish("sv_addr", sv_addr)
+    if api_addr then io.ps.publish("api_addr", api_addr) end
-        io.ps.publish("api_addr", api_addr)
-    end
 end
 
 -- determine supervisor connection quality (trip time)

pocket/pocket.lua

@@ -78,15 +78,16 @@ end
 ---@enum POCKET_APP_ID
 local APP_ID = {
     ROOT = 1,
+    LOADER = 2,
     -- main app pages
-    UNITS = 2,
+    UNITS = 3,
-    GUIDE = 3,
+    GUIDE = 4,
-    ABOUT = 4,
+    ABOUT = 5,
     -- diag app page
-    ALARMS = 5,
+    ALARMS = 6,
     -- other
-    DUMMY = 6,
+    DUMMY = 7,
-    NUM_APPS = 6
+    NUM_APPS = 7
 }
 
 pocket.APP_ID = APP_ID
@@ -98,9 +99,9 @@ pocket.APP_ID = APP_ID
 ---@field switcher function|nil function to switch between children
 ---@field tasks table tasks to run while viewing this page
 
--- allocate the page navigation system
+-- initialize the page navigation system
----@param render_queue mqueue
+---@param smem pkt_shared_memory
-function pocket.init_nav(render_queue)
+function pocket.init_nav(smem)
     local self = {
         pane = nil,    ---@type graphics_element
         sidebar = nil, ---@type graphics_element
@@ -108,6 +109,7 @@ function pocket.init_nav(render_queue)
         containers = {},
         help_map = {},
         help_return = nil,
+        loader_return = nil,
         cur_app = APP_ID.ROOT
     }
 
@@ -143,10 +145,13 @@ function pocket.init_nav(render_queue)
         app.load = function () app.loaded = true end
         app.unload = function () app.loaded = false end
 
-        -- check which connections this requires
+        -- check which connections this requires (for unload)
         ---@return boolean requires_sv, boolean requires_api
         function app.check_requires() return require_sv or false, require_api or false end
 
+        -- check if any connection is required (for load)
+        function app.requires_conn() return require_sv or require_api or false end
+
         -- delayed set of the pane if it wasn't ready at the start
         ---@param root_pane graphics_element multipane
         function app.set_root_pane(root_pane)
@@ -254,7 +259,14 @@ function pocket.init_nav(render_queue)
 
         local app = self.apps[app_id] ---@type pocket_app
         if app then
-            if not app.loaded then render_queue.push_data(MQ__RENDER_DATA.LOAD_APP, app_id) end
+            if app.requires_conn() and not smem.pkt_sys.pocket_comms.is_linked() then
+                -- bring up the app loader
+                self.loader_return = app_id
+                app_id = APP_ID.LOADER
+                app = self.apps[app_id]
+            else self.loader_return = nil end
+
+            if not app.loaded then smem.q.mq_render.push_data(MQ__RENDER_DATA.LOAD_APP, app_id) end
 
             self.cur_app = app_id
             self.pane.set_value(app_id)
@@ -267,6 +279,14 @@ function pocket.init_nav(render_queue)
         end
     end
 
+    -- open the app that was blocked on connecting
+    function nav.on_loader_connected()
+        if self.loader_return then
+            nav.open_app(self.loader_return)
+        end
+    end
+
+
     -- load a given app
     ---@param app_id POCKET_APP_ID
     function nav.load_app(app_id)
@@ -844,6 +864,10 @@ function pocket.comms(version, nic, sv_watchdog, api_watchdog, nav)
     ---@nodiscard
     function public.is_api_linked() return self.api.linked end
 
+    -- check if we are still linked with the supervisor and coordinator
+    ---@nodiscard
+    function public.is_linked() return self.sv.linked and self.api.linked end
+
     return public
 end
 

pocket/startup.lua

@@ -123,7 +123,7 @@ local function main()
     -- setup system
     ----------------------------------------
 
-    smem_sys.nav = pocket.init_nav(__shared_memory.q.mq_render)
+    smem_sys.nav = pocket.init_nav(__shared_memory)
 
     -- message authentication init
     if type(config.AuthKey) == "string" and string.len(config.AuthKey) > 0 then

pocket/ui/apps/diag_apps.lua

@@ -32,7 +32,7 @@ local function create_pages(root)
 
     local alarm_test = Div{parent=root,x=1,y=1}
 
-    local alarm_app = db.nav.register_app(APP_ID.ALARMS, alarm_test)
+    local alarm_app = db.nav.register_app(APP_ID.ALARMS, alarm_test, nil, true)
 
     local page = alarm_app.new_page(nil, function () end)
     page.tasks = { db.diag.tone_test.get_tone_states }

pocket/ui/apps/loader.lua

@@ -0,0 +1,49 @@
+--
+-- Loading Screen App
+--
+
+local iocontrol    = require("pocket.iocontrol")
+local pocket       = require("pocket.pocket")
+
+local conn_waiting = require("pocket.ui.components.conn_waiting")
+
+local core         = require("graphics.core")
+
+local Div          = require("graphics.elements.div")
+local MultiPane    = require("graphics.elements.multipane")
+local TextBox      = require("graphics.elements.textbox")
+
+local APP_ID = pocket.APP_ID
+
+local LINK_STATE = iocontrol.LINK_STATE
+
+-- create the connecting to SV & API page
+---@param root graphics_element parent
+local function create_pages(root)
+    local db = iocontrol.get_db()
+
+    local main = Div{parent=root,x=1,y=1}
+
+    db.nav.register_app(APP_ID.LOADER, main).new_page(nil, function () end)
+
+    local conn_sv_wait = conn_waiting(main, 6, false)
+    local conn_api_wait = conn_waiting(main, 6, true)
+    local main_pane = Div{parent=main,x=1,y=2}
+
+    local root_pane = MultiPane{parent=main,x=1,y=1,panes={conn_sv_wait,conn_api_wait,main_pane}}
+
+    root_pane.register(db.ps, "link_state", function (state)
+        if state == LINK_STATE.UNLINKED or state == LINK_STATE.API_LINK_ONLY then
+            root_pane.set_value(1)
+        elseif state == LINK_STATE.SV_LINK_ONLY then
+            root_pane.set_value(2)
+        else
+            root_pane.set_value(3)
+            db.nav.on_loader_connected()
+        end
+    end)
+
+    TextBox{parent=main_pane,text="Connected!",x=1,y=6,alignment=core.ALIGN.CENTER}
+end
+
+return create_pages

pocket/ui/components/conn_waiting.lua

@@ -23,16 +23,16 @@ local function init(parent, y, is_api)
     local root = Div{parent=parent,x=1,y=1}
 
     -- bounding box div
-    local box = Div{parent=root,x=1,y=y,height=5}
+    local box = Div{parent=root,x=1,y=y,height=6}
 
     local waiting_x = math.floor(parent.get_width() / 2) - 1
 
     if is_api then
         WaitingAnim{parent=box,x=waiting_x,y=1,fg_bg=cpair(colors.blue,style.root.bkg)}
-        TextBox{parent=box,text="Connecting to API",alignment=ALIGN.CENTER,y=5,height=1,fg_bg=cpair(colors.white,style.root.bkg)}
+        TextBox{parent=box,text="Connecting to API",alignment=ALIGN.CENTER,y=5,fg_bg=cpair(colors.white,style.root.bkg)}
     else
         WaitingAnim{parent=box,x=waiting_x,y=1,fg_bg=cpair(colors.green,style.root.bkg)}
-        TextBox{parent=box,text="Connecting to Supervisor",alignment=ALIGN.CENTER,y=5,height=1,fg_bg=cpair(colors.white,style.root.bkg)}
+        TextBox{parent=box,text="Connecting to Supervisor",alignment=ALIGN.CENTER,y=5,fg_bg=cpair(colors.white,style.root.bkg)}
     end
 
     return root

pocket/ui/main.lua

@@ -10,11 +10,10 @@ local pocket       = require("pocket.pocket")
 local diag_apps    = require("pocket.ui.apps.diag_apps")
 local dummy_app    = require("pocket.ui.apps.dummy_app")
 local guide_app    = require("pocket.ui.apps.guide")
+local loader_app   = require("pocket.ui.apps.loader")
 local sys_apps     = require("pocket.ui.apps.sys_apps")
 local unit_app     = require("pocket.ui.apps.unit")
 
-local conn_waiting = require("pocket.ui.components.conn_waiting")
-
 local home_page    = require("pocket.ui.pages.home_page")
 
 local style        = require("pocket.ui.style")
@@ -33,8 +32,6 @@ local SignalBar    = require("graphics.elements.indicators.signal")
 local ALIGN = core.ALIGN
 local cpair = core.cpair
 
-local LINK_STATE = iocontrol.LINK_STATE
-
 local APP_ID = pocket.APP_ID
 
 -- create new main view
@@ -42,6 +39,8 @@ local APP_ID = pocket.APP_ID
 local function init(main)
     local db = iocontrol.get_db()
 
+    local main_pane = Div{parent=main,x=1,y=2}
+
     -- window header message
     TextBox{parent=main,y=1,text="EARLY ACCESS ALPHA S   C  ",alignment=ALIGN.LEFT,height=1,fg_bg=style.header}
     local svr_conn = SignalBar{parent=main,y=1,x=22,compact=true,colors_low_med=cpair(colors.red,colors.yellow),disconnect_color=colors.lightGray,fg_bg=cpair(colors.green,colors.gray)}
@@ -50,28 +49,6 @@ local function init(main)
     db.ps.subscribe("svr_conn_quality", svr_conn.set_value)
     db.ps.subscribe("crd_conn_quality", crd_conn.set_value)
 
-    --#region root panel panes (connection screens + main screen)
-
-    local root_pane_div = Div{parent=main,x=1,y=2}
-
-    local conn_sv_wait = conn_waiting(root_pane_div, 6, false)
-    local conn_api_wait = conn_waiting(root_pane_div, 6, true)
-    local main_pane = Div{parent=main,x=1,y=2}
-
-    local root_pane = MultiPane{parent=root_pane_div,x=1,y=1,panes={conn_sv_wait,conn_api_wait,main_pane}}
-
-    root_pane.register(db.ps, "link_state", function (state)
-        if state == LINK_STATE.UNLINKED or state == LINK_STATE.API_LINK_ONLY then
-            root_pane.set_value(1)
-        elseif state == LINK_STATE.SV_LINK_ONLY then
-            root_pane.set_value(2)
-        else
-            root_pane.set_value(3)
-        end
-    end)
-
-    --#endregion
-
     --#region main page panel panes & sidebar
 
     local page_div = Div{parent=main_pane,x=4,y=1}
@@ -80,6 +57,7 @@ local function init(main)
 
     unit_app(page_div)
     guide_app(page_div)
+    loader_app(page_div)
     sys_apps(page_div)
     diag_apps(page_div)
     dummy_app(page_div)