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-rw-r--r--core/events.lua (renamed from core/handlers.lua)133
-rw-r--r--core/ext/mime_types.lua12
-rw-r--r--core/ext/pm/buffer_browser.lua12
-rw-r--r--core/ext/pm/ctags_browser.lua10
-rw-r--r--core/ext/pm/macro_browser.lua6
-rw-r--r--core/file_io.lua8
-rw-r--r--core/init.lua2
-rw-r--r--modules/cpp/commands.lua4
-rw-r--r--modules/lua/commands.lua1
-rw-r--r--modules/textadept/editing.lua4
-rw-r--r--modules/textadept/key_commands.lua8
-rw-r--r--modules/textadept/keys.lua4
-rw-r--r--modules/textadept/macros.lua6
-rw-r--r--src/lua_interface.c10
-rw-r--r--src/textadept.c2
15 files changed, 136 insertions, 86 deletions
diff --git a/core/handlers.lua b/core/events.lua
index 2a343dd3..9c8cbdb4 100644
--- a/core/handlers.lua
+++ b/core/events.lua
@@ -1,56 +1,111 @@
-- Copyright 2007 Mitchell mitchell<att>caladbolg.net. See LICENSE.
---- Handler module that handles Scintilla and Textadept notifications/events.
-module('textadept.handlers', package.seeall)
+---
+-- Module that handles Scintilla and Textadept notifications/events.
+-- Most of Textadept's functionality comes through handlers. Scintilla
+-- notifications, Textadept's own events, and user-defined events can all be
+-- handled.
+--
+-- @usage
+-- Each event can have multiple handlers, which are simply Lua functions that
+-- are called in the sequence they are added as handler functions. Sometimes it
+-- is useful to have a handler run under a specific condition(s). If this is the
+-- case, place a conditional in the function that returns if it isn't met.
+--
+-- For users creating their own events, one does not have to be explicitly
+-- defined. A handler can simply be added for an event name, and 'handle'd when
+-- necessary.
+--
+-- Scintilla notifications:
+-- char_added
+-- ch: the (integer) character added.
+-- save_point_reached
+-- save_point_left
+-- double_click
+-- position: the position of the beginning of the line clicked.
+-- line: the line clicked.
+-- update_ui
+-- macro_record
+-- message: the SCI_* message.
+-- wParam: wParam in SCI_*.
+-- lParam: lParam in SCI_*.
+-- margin_click
+-- margin: the margin number.
+-- modifiers: mouse modifiers.
+-- position: the position of the beginning of the line at the point clicked.
+-- user_list_selection
+-- wParam: the user list ID.
+-- text: the text of the selected item.
+-- uri_dropped:
+-- text: the URI dropped.
+-- call_tip_click
+-- position: 1 or 2 if the up or down arrow was clicked; 0 otherwise.
+-- auto_c_selection
+-- lParam: the start position of the word being completed.
+-- text: the text of the selected item.
+--
+-- Textadept events:
+-- buffer_new
+-- buffer_deleted
+-- buffer_switch
+-- view_new
+-- view_switch
+-- quit
+-- keypress
+-- code: the key code.
+-- shift: flag indicating whether or not shift is pressed.
+-- control: flag indicating whether or not control is pressed.
+-- alt: flag indicating whether or not alt is pressed.
+module('textadept.events', package.seeall)
-local handlers = textadept.handlers
+local events = textadept.events
---
--- Adds a function to a handler.
--- Every handler has a table of functions associated with it that are run when
--- the handler is called by Textadept.
--- @param handler The string handler name.
+-- Adds a handler function to an event.
+-- @param event The string event name.
-- @param f The Lua function to add.
-- @param index Optional index to insert the handler into.
-function add_handler_function(handler, f, index)
- local plural = handler..'s'
- if not handlers[plural] then handlers[plural] = {} end
- local funcs = handlers[plural]
+function add_handler(event, f, index)
+ local plural = event..'s'
+ if not events[plural] then events[plural] = {} end
+ local handlers = events[plural]
if index then
- table.insert(funcs, index, f)
+ table.insert(handlers, index, f)
else
- funcs[#funcs+ 1] = f
+ handlers[#handlers + 1] = f
end
end
---
--- Calls every function added to a handler in sequence.
--- If true or false is returned by any function, the iteration ceases.
--- @param handler The string handler name.
+-- Calls every handler function added to an event in sequence.
+-- If true or false is returned by any handler, the iteration ceases. Normally
+-- this function is called by the system when necessary, but it can be called
+-- in scripts to handle user-defined events.
+-- @param event The string event name.
-- @param ... Arguments to the handler.
-function handle(handler, ...)
- local plural = handler..'s'
- if not handlers[plural] then return end
- local funcs = handlers[plural]
- for _, f in ipairs(funcs) do
+function handle(event, ...)
+ local plural = event..'s'
+ local handlers = events[plural]
+ if not handlers then return end
+ for _, f in ipairs(handlers) do
local result = f( unpack{...} )
if result == true or result == false then return result end
end
end
---
--- Reloads handlers.
--- Clears each table of handlers for each handler function and reloads this
--- module to reset to the default handlers.
+-- Reloads event handlers.
+-- Clears each event's table of handlers and reloads this module to reset to the
+-- default handlers.
function reload()
- package.loaded['handlers'] = nil
- for handler in pairs(handlers) do
- if handlers[handler..'s'] then handlers[handler..'s'] = nil end
+ package.loaded['events'] = nil
+ for handler in pairs(events) do
+ if events[handler..'s'] then events[handler..'s'] = nil end
end
- require 'handlers'
+ require 'events'
end
--- Signals.
+-- Textadept events.
function buffer_new()
return handle('buffer_new')
end
@@ -134,7 +189,7 @@ end
-- Default handlers to follow.
-add_handler_function('char_added',
+add_handler('char_added',
function(char) -- auto-indent on return
if char ~= '\n' then return end
local buffer = buffer
@@ -172,13 +227,13 @@ local function set_title(buffer)
textadept.title = filename:match('[^/]+$')..d..'Textadept ('..filename..')'
end
-add_handler_function('save_point_reached',
+add_handler('save_point_reached',
function() -- changes Textadept title to show 'clean' buffer
buffer.dirty = false
set_title(buffer)
end)
-add_handler_function('save_point_left',
+add_handler('save_point_left',
function() -- changes Textadept title to show 'dirty' buffer
buffer.dirty = true
set_title(buffer)
@@ -211,7 +266,7 @@ local function match_brace(current_pos)
return false
end
-add_handler_function('update_ui',
+add_handler('update_ui',
function() -- highlights matching braces
local buffer = buffer
if not match_brace(buffer.current_pos) then buffer:brace_bad_light(-1) end
@@ -219,7 +274,7 @@ add_handler_function('update_ui',
local docstatusbar_text =
"Line: %d/%d Col: %d Lexer: %s %s %s %s"
-add_handler_function('update_ui',
+add_handler('update_ui',
function() -- sets docstatusbar text
local buffer = buffer
local pos = buffer.current_pos
@@ -233,14 +288,14 @@ add_handler_function('update_ui',
docstatusbar_text:format(line, max, col, lexer, mode, eol, tabs)
end)
-add_handler_function('margin_click',
+add_handler('margin_click',
function(margin, modifiers, position) -- toggles folding
local buffer = buffer
local line = buffer:line_from_position(position)
buffer:toggle_fold(line)
end)
-add_handler_function('buffer_new',
+add_handler('buffer_new',
function() -- set additional buffer functions
local buffer, textadept = buffer, textadept
buffer.save = textadept.io.save
@@ -249,19 +304,19 @@ add_handler_function('buffer_new',
set_title(buffer)
end)
-add_handler_function('buffer_switch',
+add_handler('buffer_switch',
function() -- updates titlebar and statusbar
set_title(buffer)
update_ui()
end)
-add_handler_function('view_switch',
+add_handler('view_switch',
function() -- updates titlebar and statusbar
set_title(buffer)
update_ui()
end)
-add_handler_function('quit',
+add_handler('quit',
function() -- prompts for confirmation if any buffers are dirty; saves session
local any = false
local list = 'The following buffers are unsaved:\n\n'
diff --git a/core/ext/mime_types.lua b/core/ext/mime_types.lua
index ec4ef808..912faf00 100644
--- a/core/ext/mime_types.lua
+++ b/core/ext/mime_types.lua
@@ -94,7 +94,7 @@ local function load_language_module_from_filename(filename)
if ret then
_m[lang].set_buffer_properties()
elseif not ret and not err:match("^module '"..lang.."' not found:") then
- textadept.handlers.error(err)
+ textadept.events.error(err)
end
end
end
@@ -119,8 +119,8 @@ local function handle_switch()
end
end
-local handlers = textadept.handlers
-handlers.add_handler_function('file_opened', handle_new)
-handlers.add_handler_function('file_saved_as', handle_new)
-handlers.add_handler_function('buffer_switch', handle_switch)
-handlers.add_handler_function('view_new', handle_switch)
+local events = textadept.events
+events.add_handler('file_opened', handle_new)
+events.add_handler('file_saved_as', handle_new)
+events.add_handler('buffer_switch', handle_switch)
+events.add_handler('view_new', handle_switch)
diff --git a/core/ext/pm/buffer_browser.lua b/core/ext/pm/buffer_browser.lua
index 1c2fb33c..47cc6de6 100644
--- a/core/ext/pm/buffer_browser.lua
+++ b/core/ext/pm/buffer_browser.lua
@@ -46,12 +46,12 @@ function perform_menu_action(menu_item, selected_item)
textadept.pm.activate()
end
-local add_handler_function = textadept.handlers.add_handler_function
+local add_handler = textadept.events.add_handler
local function update_view()
if matches(textadept.pm.entry_text) then textadept.pm.activate() end
end
-add_handler_function('file_opened', update_view)
-add_handler_function('buffer_new', update_view)
-add_handler_function('buffer_deleted', update_view)
-add_handler_function('save_point_reached', update_view)
-add_handler_function('save_point_left', update_view)
+add_handler('file_opened', update_view)
+add_handler('buffer_new', update_view)
+add_handler('buffer_deleted', update_view)
+add_handler('save_point_reached', update_view)
+add_handler('save_point_left', update_view)
diff --git a/core/ext/pm/ctags_browser.lua b/core/ext/pm/ctags_browser.lua
index 842dce9e..5166b423 100644
--- a/core/ext/pm/ctags_browser.lua
+++ b/core/ext/pm/ctags_browser.lua
@@ -230,7 +230,7 @@ function perform_menu_action(menu_item, selected_item)
end
-local add_handler_function = textadept.handlers.add_handler_function
+local add_handler = textadept.events.add_handler
local function update_view()
if matches(textadept.pm.entry_text) then
if buffer.filename then
@@ -240,7 +240,7 @@ local function update_view()
end
end
end
-add_handler_function('file_opened', update_view)
-add_handler_function('buffer_deleted', update_view)
-add_handler_function('buffer_switch', update_view)
-add_handler_function('save_point_reached', update_view)
+add_handler('file_opened', update_view)
+add_handler('buffer_deleted', update_view)
+add_handler('buffer_switch', update_view)
+add_handler('save_point_reached', update_view)
diff --git a/core/ext/pm/macro_browser.lua b/core/ext/pm/macro_browser.lua
index 3fc38aca..de8af373 100644
--- a/core/ext/pm/macro_browser.lua
+++ b/core/ext/pm/macro_browser.lua
@@ -35,9 +35,9 @@ function perform_menu_action(menu_item, selected_item)
textadept.pm.activate()
end
-local add_handler_function = textadept.handlers.add_handler_function
+local add_handler = textadept.events.add_handler
local function update_view()
if matches(textadept.pm.entry_text) then textadept.pm.activate() end
end
-add_handler_function('macro_saved', update_view)
-add_handler_function('macro_deleted', update_view)
+add_handler('macro_saved', update_view)
+add_handler('macro_deleted', update_view)
diff --git a/core/file_io.lua b/core/file_io.lua
index 958a03cc..cdc09af0 100644
--- a/core/file_io.lua
+++ b/core/file_io.lua
@@ -5,7 +5,7 @@
-- Opens and saves files and sessions and reads API files.
module('textadept.io', package.seeall)
-local handlers = textadept.handlers
+local events = textadept.events
---
-- [Local function] Opens a file or goes to its already open buffer.
@@ -24,7 +24,7 @@ local function open_helper(filename)
end
buffer.filename = filename
buffer:set_save_point()
- handlers.handle('file_opened', filename)
+ events.handle('file_opened', filename)
end
---
@@ -58,7 +58,7 @@ function save(buffer)
f:close()
buffer:set_save_point()
else
- handlers.error(err)
+ events.error(err)
end
end
@@ -77,7 +77,7 @@ function save_as(buffer, filename)
if #filename > 0 then
buffer.filename = filename:sub(1, -2) -- chomp
buffer:save()
- handlers.handle('file_saved_as', filename)
+ events.handle('file_saved_as', filename)
end
end
diff --git a/core/init.lua b/core/init.lua
index 297495e6..f699b8e0 100644
--- a/core/init.lua
+++ b/core/init.lua
@@ -17,5 +17,5 @@ end
package.path = package.path..';'.._HOME..'/core/?.lua'
require 'iface'
-require 'handlers'
+require 'events'
require 'file_io'
diff --git a/modules/cpp/commands.lua b/modules/cpp/commands.lua
index 472ca130..62c06be2 100644
--- a/modules/cpp/commands.lua
+++ b/modules/cpp/commands.lua
@@ -8,7 +8,6 @@ module('_m.cpp.commands', package.seeall)
local keys = _G.keys
if type(keys) == 'table' then
local m_editing = _m.textadept.editing
- local m_handlers = textadept.handlers
keys.cpp = {
al = { textadept.io.open, _HOME..'/modules/cpp/init.lua' },
['s\n'] = { function()
@@ -18,10 +17,7 @@ if type(keys) == 'table' then
end },
cq = { m_editing.block_comment, '//~' },
['('] = { function()
---~ buffer.word_chars =
---~ '_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
m_editing.show_call_tip(_m.cpp.api, true)
---~ buffer:set_chars_default()
return false
end },
}
diff --git a/modules/lua/commands.lua b/modules/lua/commands.lua
index f3dbe333..2b59f171 100644
--- a/modules/lua/commands.lua
+++ b/modules/lua/commands.lua
@@ -71,7 +71,6 @@ end
local keys = _G.keys
if type(keys) == 'table' then
local m_editing = _m.textadept.editing
- local m_handlers = textadept.handlers
keys.lua = {
al = { textadept.io.open, _HOME..'/modules/lua/init.lua' },
ac = {
diff --git a/modules/textadept/editing.lua b/modules/textadept/editing.lua
index 282d5ad3..d15ebb9b 100644
--- a/modules/textadept/editing.lua
+++ b/modules/textadept/editing.lua
@@ -55,7 +55,7 @@ local enclosure = {
single_tag = { left = '<', right = ' />' }
}
-textadept.handlers.add_handler_function('char_added',
+textadept.events.add_handler('char_added',
function(c) -- matches characters specified in char_matches
if char_matches[c] then
buffer:insert_text( -1, char_matches[c] )
@@ -154,7 +154,7 @@ function show_call_tip(api, start)
buffer:call_tip_show(current_call_tip.start_pos, call_tip)
end
-textadept.handlers.add_handler_function('call_tip_click',
+textadept.events.add_handler('call_tip_click',
function(position) -- display the next or previous call tip
if not buffer:call_tip_active() then return end
if position == 1 and current_call_tip.num > 1 then
diff --git a/modules/textadept/key_commands.lua b/modules/textadept/key_commands.lua
index 7493a6ec..2072795f 100644
--- a/modules/textadept/key_commands.lua
+++ b/modules/textadept/key_commands.lua
@@ -143,9 +143,9 @@ keys.ap = { 'goto_buffer', v, -1, false }
keys.can = { textadept.goto_view, 1, false }
keys.cap = { textadept.goto_view, -1, false }
-local m_handlers = textadept.handlers
-keys.cab = { m_handlers.handle, 'call_tip_click', 1 }
-keys.caf = { m_handlers.handle, 'call_tip_click', 2 }
+local m_events = textadept.events
+keys.cab = { m_events.handle, 'call_tip_click', 1 }
+keys.caf = { m_events.handle, 'call_tip_click', 2 }
keys.cs = { textadept.find.focus }
keys['c\t'] = { textadept.pm.focus }
@@ -180,7 +180,7 @@ local function toggle_setting(setting)
elseif type(state) == 'number' then
buffer[setting] = buffer[setting] == 0 and 1 or 0
end
- textadept.handlers.update_ui() -- for updating statusbar
+ textadept.events.update_ui() -- for updating statusbar
end
keys.ct.v = {} -- view chain
diff --git a/modules/textadept/keys.lua b/modules/textadept/keys.lua
index 93d089a9..996cdabf 100644
--- a/modules/textadept/keys.lua
+++ b/modules/textadept/keys.lua
@@ -159,7 +159,7 @@ local function keypress(code, shift, control, alt)
local ret, retval = pcall( func, unpack(args) )
if ret then
if type(retval) == 'boolean' then return retval end
- else textadept.handlers.error(retval) end -- error
+ else textadept.events.error(retval) end -- error
end
return true
else
@@ -175,7 +175,7 @@ local function keypress(code, shift, control, alt)
else return true end
end
end
-textadept.handlers.add_handler_function('keypress', keypress, 1)
+textadept.events.add_handler('keypress', keypress, 1)
---
-- [Local function] Tries to get a key command based on the lexer and current
diff --git a/modules/textadept/macros.lua b/modules/textadept/macros.lua
index 0d81f105..c97a372b 100644
--- a/modules/textadept/macros.lua
+++ b/modules/textadept/macros.lua
@@ -38,7 +38,7 @@ local function macro_notification(msg, wParam, lParam)
textadept.statusbar_text = 'Macro recording'
end
end
-textadept.handlers.add_handler_function('macro_record', macro_notification)
+textadept.events.add_handler('macro_record', macro_notification)
---
-- Starts recording a macro.
@@ -81,7 +81,7 @@ function stop_recording()
list[macro_name] = current
save()
textadept.statusbar_text = 'Macro saved'
- textadept.handlers.handle('macro_saved')
+ textadept.events.handle('macro_saved')
else
textadept.statusbar_text = 'Macro not saved'
end
@@ -124,7 +124,7 @@ function delete(macro_name)
if list[macro_name] then
list[macro_name] = nil
save()
- textadept.handlers.handle('macro_deleted')
+ textadept.events.handle('macro_deleted')
end
end
diff --git a/src/lua_interface.c b/src/lua_interface.c
index c3f8d99d..0be9362e 100644
--- a/src/lua_interface.c
+++ b/src/lua_interface.c
@@ -328,7 +328,7 @@ bool l_call_function(int nargs, int retn=0, bool keep_return=false) {
// error message is at stack top
void l_handle_error(LS *lua, const char *errmsg) {
- if (focused_editor && l_is_ta_table_function("handlers", "error")) {
+ if (focused_editor && l_is_ta_table_function("events", "error")) {
l_insert(lua, -1); // shift error message down
if (errmsg) lua_pushstring(lua, errmsg);
l_call_function(errmsg ? 2 : 1);
@@ -340,11 +340,11 @@ void l_handle_error(LS *lua, const char *errmsg) {
}
bool l_handle_signal(const char *s) {
- return l_is_ta_table_function("handlers", s) ? l_call_function(0, 1) : true;
+ return l_is_ta_table_function("events", s) ? l_call_function(0, 1) : true;
}
bool l_handle_keypress(int keyval, GdkEventKey *event) {
- if (!l_is_ta_table_function("handlers", "keypress")) return false;
+ if (!l_is_ta_table_function("events", "keypress")) return false;
lua_pushinteger(lua, keyval);
lua_pushboolean(lua, (event->state & GDK_SHIFT_MASK) > 0 ? 1 : 0);
lua_pushboolean(lua, (event->state & GDK_CONTROL_MASK) > 0 ? 1 : 0);
@@ -353,7 +353,7 @@ bool l_handle_keypress(int keyval, GdkEventKey *event) {
}
void l_handle_completion(const char *command) {
- if (!l_is_ta_table_function("handlers",
+ if (!l_is_ta_table_function("events",
command ? "show_completions" : "hide_completions")) return;
if (command) lua_pushstring(lua, command);
l_call_function(command ? 1 : 0);
@@ -363,7 +363,7 @@ void l_handle_completion(const char *command) {
#define l_scn_str(s, n) { lua_pushstring(lua, s); lua_setfield(lua, -2, n); }
void l_handle_scnnotification(SCNotification *n) {
- if (!l_is_ta_table_function("handlers", "notification")) return;
+ if (!l_is_ta_table_function("events", "notification")) return;
lua_newtable(lua);
l_scn_int(n->nmhdr.code, "code");
l_scn_int(n->position, "position");
diff --git a/src/textadept.c b/src/textadept.c
index 416b83fb..98096123 100644
--- a/src/textadept.c
+++ b/src/textadept.c
@@ -244,7 +244,7 @@ static bool t_keypress(GtkWidget*, GdkEventKey *event, gpointer) {
return l_handle_keypress(event->keyval, event);
}
-static bool w_keypress(GtkWidget* , GdkEventKey *event, gpointer) {
+static bool w_keypress(GtkWidget*, GdkEventKey *event, gpointer) {
if (event->keyval == 0xff1b && GTK_WIDGET_VISIBLE(findbox)) {
gtk_widget_hide(findbox);
gtk_widget_grab_focus(focused_editor);
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-09 03:39:25 +0000