[fix] FileManagerShortcuts: prevent interference with general Menu class (#4764)

The widget system doesn't really do multi-inheritance as well as it should at the moment. Instead of diving into the internals with release upcoming, this commit rewrites the shortcuts to behave better.

Also fixes an older bug in that changing the friendly name didn't actually do anything on first adding a shortcut.

Fixes #4763.

frontend/apps/filemanager/filemanagershortcuts.lua

@@ -1,5 +1,6 @@
 local ButtonDialog = require("ui/widget/buttondialog")
 local InfoMessage = require("ui/widget/infomessage")
+local InputContainer = require("ui/widget/container/inputcontainer")
 local InputDialog = require("ui/widget/inputdialog")
 local Menu = require("ui/widget/menu")
 local Screen = require("device").screen
@@ -8,22 +9,9 @@ local util = require("ffi/util")
 local _ = require("gettext")
 local T = require("ffi/util").template
 
-local FileManagerShortcuts = Menu:extend{
-    width = Screen:getWidth(),
-    height = Screen:getHeight(),
-    no_title = false,
-    parent = nil,
-    has_close_button = true,
-    is_popout = false,
-    is_borderless = true,
-}
-
-function FileManagerShortcuts:init()
-    self.item_table = self:genItemTableFromRoot()
-    Menu.init(self)
-end
+local FileManagerShortcuts = InputContainer:extend{}
 
-function FileManagerShortcuts:genItemTableFromRoot()
+function FileManagerShortcuts:updateItemTable()
     local item_table = {}
     local folder_shortcuts = G_reader_settings:readSetting("folder_shortcuts") or {}
     table.insert(item_table, {
@@ -40,12 +28,36 @@ function FileManagerShortcuts:genItemTableFromRoot()
             deletable = true,
             editable = true,
             callback = function()
-                UIManager:close(self)
-                self.goFolder(item.folder)
+                UIManager:close(self.fm_bookmark)
+
+                local folder = item.folder
+                if folder ~= nil and lfs.attributes(folder, "mode") == "directory" then
+                    if self.ui.file_chooser then
+                        self.ui.file_chooser:changeToPath(folder)
+                    else -- called from Reader
+                        local FileManager = require("apps/filemanager/filemanager")
+
+                        self.ui:onClose()
+                        if FileManager.instance then
+                            FileManager.instance:reinit(folder)
+                        else
+                            FileManager:showFiles(folder)
+                        end
+                    end
+                end
             end,
         })
     end
-    return item_table
+
+    -- try to stay on current page
+    local select_number = nil
+
+    if self.fm_bookmark.page and self.fm_bookmark.perpage then
+        select_number = (self.fm_bookmark.page - 1) * self.fm_bookmark.perpage + 1
+    end
+
+    self.fm_bookmark:switchItemTable(nil,
+                                     item_table, select_number)
 end
 
 function FileManagerShortcuts:addNewFolder()
@@ -53,7 +65,7 @@ function FileManagerShortcuts:addNewFolder()
     local path_chooser = PathChooser:new{
         select_directory = true,
         select_file = false,
-        path = self.curr_path,
+        path = self.fm_bookmark.curr_path,
         onConfirm = function(path)
             local add_folder_input
             local friendly_name = util.basename(path) or _("my folder")
@@ -74,7 +86,7 @@ function FileManagerShortcuts:addNewFolder()
                             text = _("Add"),
                             is_enter_default = true,
                             callback = function()
-                                self:addFolderFromInput(friendly_name, path)
+                                self:addFolderFromInput(add_folder_input:getInputValue(), path)
                                 UIManager:close(add_folder_input)
                             end,
                         },
@@ -103,7 +115,7 @@ function FileManagerShortcuts:addFolderFromInput(friendly_name, folder)
         folder = folder,
     })
     G_reader_settings:saveSetting("folder_shortcuts", folder_shortcuts)
-    self:init()
+    self:updateItemTable()
 end
 
 function FileManagerShortcuts:onMenuHold(item)
@@ -117,7 +129,7 @@ function FileManagerShortcuts:onMenuHold(item)
                         enabled = item.editable,
                         callback = function()
                             UIManager:close(folder_shortcuts_dialog)
-                            self:editFolderShortcut(item)
+                            self._manager:editFolderShortcut(item)
                         end
                     },
                     {
@@ -125,7 +137,7 @@ function FileManagerShortcuts:onMenuHold(item)
                         enabled = item.deletable,
                         callback = function()
                             UIManager:close(folder_shortcuts_dialog)
-                            self:deleteFolderShortcut(item)
+                            self._manager:deleteFolderShortcut(item)
                         end
                     },
                 },
@@ -175,7 +187,7 @@ function FileManagerShortcuts:renameFolderShortcut(item, new_name)
         table.insert(folder_shortcuts, element)
     end
     G_reader_settings:saveSetting("folder_shortcuts", folder_shortcuts)
-    self:init()
+    self:updateItemTable()
 end
 
 function FileManagerShortcuts:deleteFolderShortcut(item)
@@ -186,32 +198,30 @@ function FileManagerShortcuts:deleteFolderShortcut(item)
         end
     end
     G_reader_settings:saveSetting("folder_shortcuts", folder_shortcuts)
-    self:init()
+    self:updateItemTable()
+end
+
+function FileManagerShortcuts:onSetDimensions(dimen)
+    self.dimen = dimen
 end
 
 function FileManagerShortcuts:onShowFolderShortcutsDialog()
-    local fm_bookmark = self:new{
+    self.fm_bookmark = Menu:new{
         title = _("Folder shortcuts"),
         show_parent = self.ui,
+        width = Screen:getWidth(),
+        height = Screen:getHeight(),
+        no_title = false,
+        parent = nil,
+        has_close_button = true,
+        is_popout = false,
+        is_borderless = true,
         curr_path = self.ui.file_chooser and self.ui.file_chooser.path or self.ui:getLastDirFile(),
-        goFolder = function(folder)
-            if folder ~= nil and lfs.attributes(folder, "mode") == "directory" then
-                if self.ui.file_chooser then
-                    self.ui.file_chooser:changeToPath(folder)
-                else -- called from Reader
-                    local FileManager = require("apps/filemanager/filemanager")
-
-                    self.ui:onClose()
-                    if FileManager.instance then
-                        FileManager.instance:reinit(folder)
-                    else
-                        FileManager:showFiles(folder)
-                    end
-                end
-            end
-        end,
+        onMenuHold = self.onMenuHold,
+        _manager = self,
     }
-    UIManager:show(fm_bookmark)
+    self:updateItemTable()
+    UIManager:show(self.fm_bookmark)
 end
 
 return FileManagerShortcuts