diff options
Diffstat (limited to 'modules')
| -rw-r--r-- | modules/textadept/menu.lua | 90 |
1 files changed, 65 insertions, 25 deletions
diff --git a/modules/textadept/menu.lua b/modules/textadept/menu.lua index 55cf7ee6..dbb34292 100644 --- a/modules/textadept/menu.lua +++ b/modules/textadept/menu.lua @@ -6,6 +6,8 @@ local M = {} --[[ This comment is for LuaDoc. --- -- Defines the menus used by Textadept. +-- Menus are simply tables and may be edited in place. Use the '#' operator +-- (instead of `ipairs()`) for iteration. -- If applicable, load this module last in your *~/.textadept/init.lua*, after -- `textadept.keys` since it looks up defined key commands to show them in -- menus. @@ -15,7 +17,10 @@ local _L, buffer, view = _L, buffer, view local editing, utils = textadept.editing, textadept.keys.utils local SEPARATOR = {''} +--- -- The default main menubar. +-- @class table +-- @name menubar local menubar = { { title = _L['_File'], {_L['_New'], buffer.new}, @@ -200,7 +205,10 @@ local menubar = { }, } +--- -- The default right-click context menu. +-- @class table +-- @name context_menu local context_menu = { {_L['_Undo'], buffer.undo}, {_L['_Redo'], buffer.redo}, @@ -213,7 +221,10 @@ local context_menu = { {_L['Select _All'], buffer.select_all} } +--- -- The default tabbar context menu. +-- @class table +-- @name tab_context_menu local tab_context_menu = { {_L['_Close'], io.close_buffer}, SEPARATOR, @@ -223,6 +234,11 @@ local tab_context_menu = { {_L['Re_load'], io.reload_file}, } +-- Table of proxy tables for menus. +local proxies = {} + +local key_shortcuts, menu_actions, contextmenu_actions, items, commands + -- Returns the GDK integer keycode and modifier mask for a key sequence. -- This is used for creating menu accelerators. -- @param key_seq The string key sequence. @@ -256,8 +272,6 @@ local function get_id(f) return id end -local key_shortcuts, menu_actions, contextmenu_actions - -- Creates a menu suitable for `ui.menu()` from the menu table format. -- Also assigns key commands. -- @param menu The menu to create a GTK+ menu from. @@ -305,9 +319,27 @@ local function build_command_tables(menu, title, items, commands) end end -local items, commands +-- Returns a proxy table for menu table *menu* such that when a menu item is +-- changed or added, *update* is called to update the menu in the UI. +-- @param menu The menu or table of menus to create a proxy for. +-- @param update The function to call to update the menu in the UI when a menu +-- item is changed or added. +-- @param menubar Used internally to keep track of the top-level menu for +-- calling *update* with. +local function proxy_menu(menu, update, menubar) + return setmetatable({}, { + __index = function(t, k) + local v = menu[k] + return type(v) == 'table' and proxy_menu(v, update, menubar or menu) or v + end, + __newindex = function(t, k, v) + menu[k] = v + update(menubar or menu) + end, + __len = function(t) return #menu end, + }) +end ---- -- Sets `ui.menubar` from menu table *menubar*. -- Each menu is an ordered list of menu items and has a `title` key for the -- title text. Menu items are tables containing menu text and either a function @@ -317,8 +349,7 @@ local items, commands -- @param menubar The table of menu tables to create the menubar from. -- @see ui.menubar -- @see ui.menu --- @name set_menubar -function M.set_menubar(menubar) +local function set_menubar(menubar) key_shortcuts = {} for key, f in pairs(keys) do key_shortcuts[get_id(f)] = key end menu_actions = {} @@ -329,18 +360,10 @@ function M.set_menubar(menubar) ui.menubar = _menubar items, commands = {}, {} build_command_tables(menubar, nil, items, commands) + proxies.menubar = proxy_menu(menubar, set_menubar) end -M.set_menubar(menubar) - ---- --- Sets `ui.context_menu` from menu item list *menu*. --- Deprecated in favor of `set_contextmenus()`. --- @param menu The menu table to create the context menu from. --- @see set_contextmenus --- @name set_contextmenu -function M.set_contextmenu(menu) M.set_contextmenus(menu) end +set_menubar(menubar) ---- -- Sets `ui.context_menu` and `ui.tab_context_menu` from menu item lists -- *buffer_menu* and *tab_menu*, respectively. -- Menu items are tables containing menu text and either a function to call or @@ -354,14 +377,18 @@ function M.set_contextmenu(menu) M.set_contextmenus(menu) end -- @see ui.context_menu -- @see ui.tab_context_menu -- @see ui.menu --- @name set_contextmenus -function M.set_contextmenus(buffer_menu, tab_menu) +local function set_contextmenus(buffer_menu, tab_menu) contextmenu_actions = {} - ui.context_menu = ui.menu(read_menu_table(buffer_menu or context_menu, true)) - ui.tab_context_menu = ui.menu(read_menu_table(tab_menu or tab_context_menu, - true)) + local menu = buffer_menu or context_menu + ui.context_menu = ui.menu(read_menu_table(menu, true)) + proxies.context_menu = proxy_menu(menu, set_contextmenus) + menu = tab_menu or tab_context_menu + ui.tab_context_menu = ui.menu(read_menu_table(menu, true)) + proxies.tab_context_menu = proxy_menu(menu, function() + set_contextmenus(nil, menu) + end) end -if not CURSES then M.set_contextmenus() end +if not CURSES then set_contextmenus() end --- -- Prompts the user to select a menu command to run. @@ -388,8 +415,8 @@ if not CURSES then -- Set a language-specific context menu or the default one. local function set_language_contextmenu() local lang = _G.buffer:get_lexer() - M.set_contextmenus(_M[lang] and _M[lang].context_menu, - _M[lang] and _M[lang].tab_context_menu) + set_contextmenus(_M[lang] and _M[lang].context_menu, + _M[lang] and _M[lang].tab_context_menu) end events.connect(events.LEXER_LOADED, set_language_contextmenu) events.connect(events.BUFFER_AFTER_SWITCH, set_language_contextmenu) @@ -397,4 +424,17 @@ if not CURSES then events.connect(events.BUFFER_NEW, set_language_contextmenu) end -return M +return setmetatable(M, { + __index = function(t, k) return proxies[k] or M[k] end, + __newindex = function(t, k, v) + if k == 'menubar' then + set_menubar(v) + elseif k == 'context_menu' then + set_contextmenus(v) + elseif k == 'tab_context_menu' then + set_contextmenus(nil, v) + else + M[k] = v + end + end +}) |