Redesign of the content addition menu

res/layouts/pages/content.xml

@@ -1,13 +1,41 @@
-<container size='887,454' color='#0F1E2DB2' padding='8' interval='5' context='menu'>
-    <panel id='packs_cur' pos='2' size='440,406' color='0' max-length='406'>
-        <!-- content is generated in script -->
-    </panel>
-    <panel id='packs_add' pos='445,2' size='440,406' color='0' max-length='406'>
-        <!-- content is generated in script -->
-    </panel>
-    <button id='apply_btn' pos='2,410' size='440,40' onclick='apply()'>@Apply</button>
-    <button pos='445,410' size='398,40' onclick='menu:back()'>@Cancel</button>
-    <image onclick='refresh()' interactive='true' src='gui/refresh' 
-        size='32' margin='7' gravity='bottom-right'
-        color='#FFFFFF80' hover-color='#FFFFFF10'/>
-</container>
+
+<container size='940,600' color='#0F1E2DB2' interval='5' context='menu'>  
+    <button pos='15,545' id='apply_btn' size='440,40' onclick='apply()'>@Apply</button>  
+    <button pos='485,545' size='440,40' onclick='menu:back()'>@Cancel</button>  
+
+    <image id="move_left" src='gui/check_mark'   
+        size='32' margin='218,2,0,0' gravity='top-left'  
+        color='#FFFFFF50'/>  
+
+    <image id="move_left" src='gui/cross'   
+        size='32' margin='0,2,219,0' gravity='top-right'  
+        color='#FFFFFF50'/>  
+
+    <panel id='search_panel' size='440,36' pos='15,504' interval='1' color='#0000004C'>  
+        <textbox id='search_textbox' multiline='false' size='440,25' sub-consumer='function(x) refresh_search() end'></textbox>  
+    </panel>  
+
+    <image onclick='core.open_folder("user:content")' interactive='true' src='gui/folder_icon'   
+        size='32' margin='0,0,18,66' gravity='bottom-right'  
+        color='#FFFFFF50' hover-color='#FFFFFF10'/>  
+
+    <image onclick='refresh()' interactive='true' src='gui/refresh'   
+        size='32' margin='0,0,65,66' gravity='bottom-right'  
+        color='#FFFFFF80' hover-color='#FFFFFF10'/>  
+
+    <image id="move_right" onclick='move_right()' interactive='true' src='gui/right_arrow'   
+        size='32' margin='0,0,380,64' gravity='bottom-right'  
+        color='#FFFFFF50' hover-color='#FFFFFF10'/>  
+
+    <image id="move_left" onclick='move_left()' interactive='true' src='gui/left_arrow'   
+        size='32' margin='0,0,425,64' gravity='bottom-right'  
+        color='#FFFFFF50' hover-color='#FFFFFF10'/>  
+
+    <panel id='packs_add' pos='485,34' size='440,507' color='0' max-length='455' scrollable='true'>  
+        <!-- content is generated in script -->  
+    </panel>  
+
+    <panel id='packs_cur' pos='15,34' size='440,507' color='0' max-length='455' scrollable='true'>  
+        <!-- content is generated in script -->  
+    </panel>  
+</container>

res/layouts/pages/content.xml.lua

@@ -8,38 +8,120 @@ end
 add_packs = {}
 rem_packs = {}
 
+packs_included = {}
+packs_excluded = {}
+
+packs_info = {}
+
+local function include(id, is_include)
+    if is_include then
+        table.insert(packs_included, id)
+        table.remove_value(packs_excluded, id)
+    else
+        table.insert(packs_excluded, id)
+        table.remove_value(packs_included, id)
+    end
+end
+
 function apply()
     core.reconfig_packs(add_packs, rem_packs)
     if mode ~= "world" then
         menu:back()
     end
 end
 
+function refresh_search()
+    local search_text = document.search_textbox.text:lower()
+    local interval = 2
+    local step = -1
+
+    for _, packs in ipairs({packs_excluded, packs_included}) do
+        local visible = 0
+
+        for i, v in ipairs(packs) do
+            local info = packs_info[v]
+
+            local id = info[1]
+            local title = info[2]
+
+            local content = document["pack_" .. id]
+            local pos = content.pos
+            local size = content.size
+
+            if title:lower():find(search_text) or search_text == '' then
+                content.pos = {pos[1], visible * (size[2] + interval) - step}
+                visible = visible + 1
+            else
+                content.pos = {pos[1], (visible + #packs - i) * (size[2] + interval) - step}
+            end
+        end
+    end
+end
+
 function refresh_changes()
     document.apply_btn.enabled = (#add_packs>0) or (#rem_packs>0)
+    refresh_search()
 end
 
 function move_pack(id)
     -- cancel pack addition
     if table.has(add_packs, id) then
         document["pack_"..id]:moveInto(document.packs_add)
         table.remove_value(add_packs, id)
+        include(id, false)
     -- cancel pack removal
     elseif table.has(rem_packs, id) then
         document["pack_"..id]:moveInto(document.packs_cur)
         table.remove_value(rem_packs, id)
+        include(id, true)
     -- add pack
     elseif table.has(packs_installed, id) then
         document["pack_"..id]:moveInto(document.packs_add)
         table.insert(rem_packs, id)
+        include(id, false)
     -- remove pack
     else
         document["pack_"..id]:moveInto(document.packs_cur)
         table.insert(add_packs, id)
+        include(id, true)
     end
     refresh_changes()
 end
 
+function move_left()
+    for _, id in pairs(table.copy(packs_excluded)) do
+        if not document["pack_"..id].enabled then goto continue end
+
+        include(id, true)
+        table.insert(add_packs, id)
+        table.remove_value(rem_packs, id)
+        document["pack_"..id]:moveInto(document.packs_cur)
+
+        ::continue::
+    end
+
+    refresh_changes()
+end
+
+function move_right()
+    for _, id in pairs(table.copy(packs_included)) do
+        if not document["pack_"..id].enabled then goto continue end
+
+        include(id, false)
+
+        if table.has(packs_installed, id) then
+            table.insert(rem_packs, id)
+        end
+
+        table.remove_value(add_packs, id)
+        document["pack_"..id]:moveInto(document.packs_add)
+
+        ::continue::
+    end
+
+    refresh_changes()
+end
+
 function place_pack(panel, packinfo, callback)
     if packinfo.error then
         callback = nil
@@ -115,12 +197,25 @@ function refresh()
         place_pack(packs_add, packinfo, callback)
     end
 
+    for _,id in ipairs(base_packs) do
+        local packinfo = pack.get_info(id)
+        packs_info[id] = {packinfo.id, packinfo.title}
+    end
+
+    for _,id in ipairs(packs_all) do
+        local packinfo = pack.get_info(id)
+        packs_info[id] = {packinfo.id, packinfo.title}
+    end
+
     for i,id in ipairs(packs_installed) do
         if table.has(required, id) then
             document["pack_"..id].enabled = false
         end
     end
 
+    if #packs_excluded == 0 then packs_excluded = table.copy(packs_available) end
+    if #packs_included == 0 then packs_included = table.copy(packs_installed) end
+
     apply_movements(packs_cur, packs_add)
     refresh_changes()
 end

res/layouts/pages/new_world.xml.lua

@@ -28,7 +28,8 @@ function on_open()
     document.content_btn.text = string.format(
         "%s [%s]", gui.str("Content", "menu"), #pack.get_installed()
     )
-    if settings.generator == nil then
+
+    if settings.generator == nil or generation.get_generators()[settings.generator] == nil then
         settings.generator = generation.get_default_generator()
     end
     document.generator_btn.text = string.format(

res/preload.json

@@ -19,7 +19,10 @@
         "gui/cross",
         "gui/refresh",
         "gui/folder_icon",
-        "gui/settings_icon"
+        "gui/settings_icon",
+        "gui/check_mark",
+        "gui/left_arrow",
+        "gui/right_arrow"
     ],
     "fonts": [
         {