add Lua traceback inspector (WIP) && add chat prototype

res/layouts/console.xml

@@ -1,5 +1,18 @@
 <container color='#00000080' size='400' size-func="unpack(gui.get_viewport())">
-    <container size-func="gui.get_viewport()[1],gui.get_viewport()[2]-40">
+    <panel interval="0"
+           orientation="horizontal"
+           color="#00000010"
+           size-func="gui.get_viewport()[1]-350,30">
+        <button id="s_chat" size="110,30" onclick="modes:set('chat')">@Chat</button>
+        <button id="s_console" size="110,30" onclick="modes:set('console')">@Console</button>
+        <button id="s_debug" size="110,30" onclick="modes:set('debug')">@Debug</button>
+    </panel>
+    <container pos="0,30" size-func="gui.get_viewport()[1]-350,30" color="#00000020">
+        <label id="title" pos="8,8"></label>
+    </container>
+    
+    <container id="logContainer" pos="0,60"
+               size-func="unpack(vec2.add(gui.get_viewport(), {0,-70}))">
         <textbox 
             id='log' 
             color='0'
@@ -11,12 +24,33 @@
             gravity="bottom-left"
         ></textbox>
     </container>
+    <container id="editorContainer" pos="0,60" color="#00000080"
+               size-func="unpack(vec2.add(gui.get_viewport(), {-350,-230}))">
+        <textbox
+            id='editor'
+            color='0'
+            autoresize='true'
+            margin='0'
+            padding='5'
+            editable='false'
+            multiline='true'
+            line-numbers='true'
+            text-color="#FFFFFFA0"
+            size-func="gui.get_viewport()[1]-350,40"
+            gravity="top-left"
+            text-wrap='false'
+            scroll-step='50'
+        ></textbox>
+    </container>
+    <panel id="traceback" gravity="bottom-left" padding="4" color="#000000A0" 
+        max-length="170" size-func="gui.get_viewport()[1]-350,170">
+    </panel>
     <panel id="problemsLog"
         color="#00000010" 
         position-func="gui.get_viewport()[1]-350,0" 
         size-func="350,gui.get_viewport()[2]-40"
         padding="5,15,5,15">
-        <label>@Problems</label>
+        <label margin="0,0,0,5">@Problems</label>
     </panel>
     <textbox id='prompt' 
              consumer='submit' 

res/layouts/console.xml.lua

@@ -1,21 +1,93 @@
+console_mode = "console"
+
 history = session.get_entry("commands_history")
 history_pointer = #history
 
 local warnings_all = {}
+local errors_all = {}
 
 local warning_id = 0
-events.on("core:warning", function (wtype, text)
+local error_id = 0
+
+events.on("core:warning", function (wtype, text, traceback)
     local full = wtype..": "..text
     if table.has(warnings_all, full) then
         return
     end
+    local encoded = base64.encode(bjson.tobytes({frames=traceback}))
     document.problemsLog:add(gui.template("problem", {
-        type="warning", text=full, id=tostring(warning_id)
+        type="warning", 
+        text=full, 
+        traceback=encoded, 
+        id=tostring(warning_id)
     }))
     warning_id = warning_id + 1
     table.insert(warnings_all, full)
 end)
 
+events.on("core:error", function (msg, traceback)
+    local _, endindex = string.find(msg, ": ")
+    local full = ""
+    for i,frame in ipairs(traceback) do
+        full = full..frame.source..tostring(frame.currentline)
+    end
+    if table.has(errors_all, full) then
+        return
+    end
+    local encoded = base64.encode(bjson.tobytes({frames=traceback}))
+    document.problemsLog:add(gui.template("problem", {
+        type="error", 
+        text=msg:sub(endindex), 
+        traceback=encoded,
+        id=tostring(error_id)
+    }))
+    error_id = error_id + 1
+    table.insert(errors_all, full)
+end)
+
+events.on("core:open_traceback", function(traceback_b64)
+    local traceback = bjson.frombytes(base64.decode(traceback_b64))
+    modes:set('debug')
+
+    local tb_list = document.traceback
+    local srcsize = tb_list.size
+    tb_list:clear()
+    tb_list:add("<label enabled='false' margin='2'>@devtools.traceback</label>")
+    for _, frame in ipairs(traceback.frames) do
+        local callback = ""
+        local framestr = ""
+        if frame.what == "C" then
+            framestr = "C/C++ "
+        else
+            framestr = frame.source..":"..tostring(frame.currentline).." "
+            if file.exists(frame.source) then
+                callback = "local source = file.read('"..frame.source.."') "..
+                           "document.editor.text = source "..
+                           "document.editor.focused = true "..
+                           "time.post_runnable(function() document.editor.caret = document.editor:linePos("..
+                           tostring(frame.currentline-1)..") end)"
+            else
+                callback = "document.editor.text = 'Could not open source file'"
+            end
+            callback = callback.." document.title.text = gui.str('File')..' - "
+                       ..frame.source.."'"
+        end
+        if frame.name then
+            framestr = framestr.."("..tostring(frame.name)..")"
+        end
+        local color = "#FFFFFF"
+        if frame.source:starts_with("core:") then
+            color = "#C0D0C5"
+        end
+        tb_list:add(gui.template("stack_frame", {
+            location=framestr, 
+            color=color,
+            callback=callback
+        }))
+    end
+    tb_list.size = srcsize
+end)
+
 function setup_variables()
     local pid = hud.get_player()
     local x,y,z = player.get_pos(pid)
@@ -56,10 +128,19 @@ function add_to_history(text)
 end
 
 function submit(text)
+    text = text:trim()
     add_to_history(text)
+
+    if console_mode == "chat" then
+        if not text:starts_with("/") then
+            text = "chat "..string.escape(text)
+        else
+            text = text:sub(2)
+        end
+    end
+
     setup_variables()
     
-    text = text:trim()
     local name
     for s in text:gmatch("%S+") do
         name = s
@@ -84,6 +165,35 @@ function submit(text)
     document.prompt.focused = true
 end
 
-function on_open()
+function set_mode(mode)
+    local show_prompt = mode == 'chat' or mode == 'console'
+
+    document.title.text = ""
+    document.editorContainer.visible = mode == 'debug'
+    document.logContainer.visible = mode ~= 'debug'
+
+    if mode == 'debug' then
+        document.root.color = {16, 18, 20, 220}
+    else
+        document.root.color = {0, 0, 0, 128}
+    end
+
+    document.traceback.visible = mode == 'debug'
+    document.prompt.visible = show_prompt
+    if show_prompt then
         document.prompt.focused = true
+    end
+    console_mode = mode
+end
+
+function on_open()
+    if modes == nil then
+        modes = RadioGroup({
+            chat=document.s_chat,
+            console=document.s_console,
+            debug=document.s_debug
+        }, function (mode)
+            set_mode(mode)
+        end, "console")
+    end
 end

res/layouts/templates/problem.xml

@@ -1,4 +1,5 @@
-<container id="%{id}" size="32" tooltip="%{text}">
+<container id="%{id}" size="32" tooltip="%{text}" 
+           onclick="events.emit('core:open_traceback', '%{traceback}')">
     <image src="gui/%{type}" size="32"/>
     <label pos="36,2">%{text}</label>
     <image src="gui/cross" interactive="true" size="16" gravity="top-right" 

res/layouts/templates/stack_frame.xml

@@ -0,0 +1,3 @@
+<label hover-color="#A0A0FF" interactive="true" onclick="%{callback}" color="%{color}">
+    %{location}    
+</label>

res/scripts/stdcmd.lua

@@ -256,6 +256,14 @@ console.add_command(
     end
 )
 
+console.add_command(
+    "chat text:str",
+    "Send chat message",
+    function (args, kwargs)
+        console.log("[you] "..args[1])
+    end
+)
+
 console.cheats = {
     "blocks.fill",
     "tp",

res/texts/en_US.txt

@@ -11,6 +11,8 @@ world.delete-confirm=Do you want to delete world forever?
 world.generators.default=Default
 world.generators.flat=Flat
 
+devtools.traceback=Traceback (most recent call first)
+
 # Tooltips
 graphics.gamma.tooltip=Lighting brightness curve
 graphics.backlight.tooltip=Backlight to prevent total darkness

res/texts/ru_RU.txt

@@ -12,7 +12,15 @@ Dependencies=Зависимости
 Description=Описание
 Converting world...=Выполняется конвертация мира...
 Unlimited=Неограниченно
+Chat=Чат
+Console=Консоль
+Log=Лог
+Problems=Проблемы
+Monitor=Мониторинг
+Debug=Отладка
+File=Файл
 
+devtools.traceback=Стек вызовов (от последнего)
 error.pack-not-found=Не удалось найти пакет
 error.dependency-not-found=Используемая зависимость не найдена
 pack.remove-confirm=Удалить весь поставляемый паком/паками контент из мира (безвозвратно)?