WIP: File browser, needs bug fixes

lua/file_browser.lua

@@ -0,0 +1,73 @@
+local lvgl = require("lvgl")
+local widgets = require("widgets")
+local backstack = require("backstack")
+local font = require("font")
+local queue = require("queue")
+local playing = require("playing")
+local styles = require("styles")
+local playback = require("playback")
+local theme = require("theme")
+local screen = require("screen")
+local filesystem = require("filesystem")
+
+return screen:new{
+    createUi = function(self)
+        self.root = lvgl.Object(nil, {
+            flex = {
+                flex_direction = "column",
+                flex_wrap = "wrap",
+                justify_content = "flex-start",
+                align_items = "flex-start",
+                align_content = "flex-start"
+            },
+            w = lvgl.HOR_RES(),
+            h = lvgl.VER_RES()
+        })
+        self.root:center()
+
+        self.status_bar = widgets.StatusBar(self, {
+            back_cb = backstack.pop,
+            title = self.title
+        })
+
+        local header = self.root:Object{
+            flex = {
+                flex_direction = "column",
+                flex_wrap = "wrap",
+                justify_content = "flex-start",
+                align_items = "flex-start",
+                align_content = "flex-start"
+            },
+            w = lvgl.HOR_RES(),
+            h = lvgl.SIZE_CONTENT,
+            pad_left = 4,
+            pad_right = 4,
+            pad_bottom = 2,
+            bg_opa = lvgl.OPA(100),
+            scrollbar_mode = lvgl.SCROLLBAR_MODE.OFF
+        }
+        theme.set_style(header, "header")
+
+        if self.breadcrumb then
+            header:Label{
+                text = self.breadcrumb,
+                text_font = font.fusion_10
+            }
+        end
+
+        local recycle_list = widgets.RecyclerList(self.root, self.iterator, {
+            callback = function(item) 
+                return function()
+                    local is_dir = item:is_directory()
+                    if is_dir then
+                        backstack.push(require("file_browser"):new{
+                            title = self.title,
+                            iterator = filesystem.iterator(tostring(item)),
+                            breadcrumb = tostring(item)
+                        })
+                    end
+                end
+            end
+        })
+    end
+}

lua/main_menu.lua

@@ -5,6 +5,7 @@ local backstack = require("backstack")
 local browser = require("browser")
 local playing = require("playing")
 local styles = require("styles")
+local filesystem = require("filesystem")
 local screen = require("screen")
 
 return widgets.MenuScreen:new {
@@ -35,6 +36,15 @@ return widgets.MenuScreen:new {
       btn:add_style(styles.list_item)
     end
 
+    local files = list:add_btn(nil, "Files")
+    files:onClicked(function()
+      backstack.push(require("file_browser"):new {
+        title = "Files",
+        iterator = filesystem.iterator(""),
+      })
+    end)
+    files:add_style(styles.list_item)
+
     local settings = list:add_btn(nil, "Settings")
     settings:onClicked(function()
       backstack.push(require("settings"):new())