Replace C++ mainmenu by formspec powered one

2 files changed, 221 insertions, 0 deletions

diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index cd0824eb3..ebba40fbf 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -883,6 +883,15 @@ background[<X>,<Y>;<W>,<H>;<texture name>]
 ^ Position and size units are inventory slots
 ^ Example for formspec 8x4 in 16x resolution: image shall be sized 8*16px x 4*16px
 
+pwdfield[<X>,<Y>;<W>,<H>;<name>;<label>]
+^ Textual password style field; will be sent to server when a button is clicked
+^ x and y position the field relative to the top left of the menu
+^ w and h are the size of the field
+^ fields are a set height, but will be vertically centred on h
+^ Position and size units are inventory slots
+^ name is the name of the field as returned in fields to on_receive_fields
+^ label, if not blank, will be text printed on the top left above the field
+
 field[<X>,<Y>;<W>,<H>;<name>;<label>;<default>]
 ^ Textual field; will be sent to server when a button is clicked
 ^ x and y position the field relative to the top left of the menu
@@ -910,6 +919,12 @@ label[<X>,<Y>;<label>]
 ^ label is the text on the label
 ^ Position and size units are inventory slots
 
+vertlabel[<X>,<Y>;<label>]
+^ Textual label drawn verticaly
+^ x and y work as per field
+^ label is the text on the label
+^ Position and size units are inventory slots
+
 button[<X>,<Y>;<W>,<H>;<name>;<label>]
 ^ Clickable button. When clicked, fields will be sent.
 ^ x, y and name work as per field
@@ -922,6 +937,13 @@ image_button[<X>,<Y>;<W>,<H>;<texture name>;<name>;<label>]
 ^ image is the filename of an image
 ^ Position and size units are inventory slots
 
+image_button[<X>,<Y>;<W>,<H>;<texture name>;<name>;<label>;<noclip>;<drawborder>]
+^ x, y, w, h, and name work as per button
+^ image is the filename of an image
+^ Position and size units are inventory slots
+^ noclip true meand imagebutton doesn't need to be within specified formsize
+^ drawborder draw button bodrer or not
+
 item_image_button[<X>,<Y>;<W>,<H>;<item name>;<name>;<label>]
 ^ x, y, w, h, name and label work as per button
 ^ item name is the registered name of an item/node,
@@ -934,6 +956,42 @@ button_exit[<X>,<Y>;<W>,<H>;<name>;<label>]
 image_button_exit[<X>,<Y>;<W>,<H>;<texture name>;<name>;<label>]
 ^ When clicked, fields will be sent and the form will quit.
 
+textlist[<X>,<Y>;<W>,<H>;<name>;<listelem 1>,<listelem 2>,...,<listelem n>]
+^Scrollabel itemlist showing arbitrary text elements
+^ x and y position the itemlist relative to the top left of the menu
+^ w and h are the size of the itemlist
+^ listelements can be prepended by #colorkey (see colorkeys), 
+^    if you want a listelement to start with # write ##
+^ name fieldname sent to server on doubleclick value is current selected element
+
+tabheader[<X>,<Y>;<name>;<caption 1>,<caption 2>;<current_tab>;<transparent>;<draw_border>]
+^ show a tabHEADER at specific position (ignores formsize)
+^ x and y position the itemlist relative to the top left of the menu
+^ name fieldname data is transfered to lua
+^ caption 1... name shown on top of tab
+^ current_tab index of selected tab 1...
+^ transparent (optional) show transparent
+^ draw_border (optional) draw border
+
+box[<X>,<Y>;<W>,<H>;<colorkey>]
+^ simple colored semitransparent box
+^ x and y position the box relative to the top left of the menu
+^ w and h are the size of box
+^ colorkey (see colorkeys)
+
+Available colorkeys:
+- YLW yellow
+- GRN green
+- LIM lime
+- ORN orange
+- RED red
+- BLU blue
+- CYN cyan
+- BLK black
+- BRN brown
+- WHT white
+- GRY grey
+
 Inventory location:
 
 - "context": Selected node metadata (deprecated: "current_name")
diff --git a/doc/menu_lua_api.txt b/doc/menu_lua_api.txt
new file mode 100644
index 000000000..337091a93
--- /dev/null
+++ b/doc/menu_lua_api.txt
@@ -0,0 +1,163 @@
+Minetest Lua Mainmenu API Reference 0.4.6
+========================================
+
+Introduction
+-------------
+The main menu is defined as a formspec by Lua in builtin/mainmenu.lua
+Description of formspec language to show your menu is in lua_api.txt
+
+Callbacks
+---------
+engine.buttonhandler(fields): called when a button is pressed.
+^ fields = {name1 = value1, name2 = value2, ...}
+engine.event_handler(event)
+^ event: "MenuQuit", "KeyEnter", "ExitButton" or "EditBoxEnter"
+
+Gamedata
+--------
+The "gamedata" table is read when calling engine.start(). It should contain:
+{
+	playername     = <name>,
+	password       = <password>,
+	address        = <IP/adress>,
+	port           = <port>,
+	selected_world = <index>, -- 0 for client mode
+	singleplayer   = <true/false>,
+}
+
+Functions
+---------
+engine.start()
+engine.close()
+
+Filesystem:
+engine.get_scriptdir()
+^ returns directory of script
+engine.get_modpath()
+^ returns path to global modpath
+engine.get_modstore_details(modid)
+^ modid numeric id of mod in modstore
+^ returns {
+	id			= <numeric id of mod in modstore>,
+	title		= <human readable title>,
+	basename	= <basename for mod>,
+	description = <description of mod>,
+	author		= <author of mod>,
+	download_url= <best match download url>,
+	license		= <short description of license>,
+	rating		= <float value of current rating>
+}
+engine.get_modstore_list()
+^ returns {
+	[1] = {
+		id		 = <numeric id of mod in modstore>,
+		title	 = <human readable title>,
+		basename = <basename for mod>
+	}
+}
+engine.get_gamepath()
+^ returns path to global gamepath
+engine.get_dirlist(path,onlydirs)
+^ path to get subdirs from
+^ onlydirs should result contain only dirs?
+^ returns list of folders within path
+engine.create_dir(absolute_path)
+^ absolute_path to directory to create (needs to be absolute)
+^ returns true/false
+engine.delete_dir(absolute_path)
+^ absolute_path to directory to delete (needs to be absolute)
+^ returns true/false
+engine.copy_dir(source,destination,keep_soure)
+^ source folder
+^ destination folder
+^ keep_source DEFAULT true --> if set to false source is deleted after copying
+^ returns true/false
+engine.extract_zip(zipfile,destination) [unzip within path required]
+^ zipfile to extract
+^ destination folder to extract to
+^ returns true/false
+engine.download_file(url,target)
+^ url to download
+^ target to store to
+^ returns true/false
+engine.get_version()
+^ returns current minetest version
+
+GUI:
+engine.update_formspec(formspec)
+- engine.set_background(type, texturepath)
+^ type: "background", "overlay", "header" or "footer"
+engine.set_clouds(<true/false>)
+engine.set_topleft_text(text)
+
+Games:
+engine.get_game(index)
+^ returns {
+	id               = <id>,
+	path             = <full path to game>,
+	gamemods_path    = <path>,
+	name             = <name of game>,
+	menuicon_path    = <full path to menuicon>,
+	DEPRECATED:
+	addon_mods_paths = {[1] = <path>,},
+}
+engine.get_games() -> table of all games in upper format
+
+Favorites:
+engine.get_favorites(location) -> list of favorites
+^ location: "local" or "online"
+^ returns {
+	[1] = {
+	clients       = <number of clients/nil>,
+	clients_max   = <maximum number of clients/nil>,
+	version       = <server version/nil>,
+	password      = <true/nil>,
+	creative      = <true/nil>,
+	damage        = <true/nil>,
+	pvp           = <true/nil>,
+	description   = <server description/nil>,
+	name          = <server name/nil>,
+	address       = <address of server/nil>,
+	port          = <port>
+	},
+}
+engine.delete_favorite(id, location) -> success
+
+Settings:
+engine.setting_set(name, value)
+engine.setting_get(name) -> string or nil
+engine.setting_setbool(name, value)
+engine.setting_getbool(name) -> bool or nil
+
+Worlds:
+engine.get_worlds() -> list of worlds
+^ returns {
+	[1] = {
+	path   = <full path to world>,
+	name   = <name of world>,
+	gameid = <gameid of world>,
+	},
+}
+engine.create_world(worldname, gameid)
+engine.delete_world(index)
+
+
+UI:
+engine.get_textlist_index(textlistname) -> index
+engine.show_keys_menu()
+engine.file_open_dialog(formname,caption)
+^ shows a file open dialog
+^ formname is base name of dialog response returned in fields
+^     -if dialog was accepted "_accepted" 
+^^       will be added to fieldname containing the path
+^     -if dialog was canceled "_cancelled" 
+^        will be added to fieldname value is set to formname itself
+^ returns nil or selected file/folder
+
+Helpers:
+dump(obj, dumped={})
+^ Return object serialized as a string
+string:split(separator)
+^ eg. string:split("a,b", ",") == {"a","b"}
+string:trim()
+^ eg. string.trim("\n \t\tfoo bar\t ") == "foo bar"
\ No newline at end of file