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line_edit.cpp
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/**************************************************************************/
/* line_edit.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "line_edit.h"
#include "core/input/input_map.h"
#include "core/os/keyboard.h"
#include "core/os/os.h"
#include "scene/gui/label.h"
#include "scene/main/window.h"
#include "scene/theme/theme_db.h"
#include "servers/display_server.h"
#include "servers/text_server.h"
#ifdef TOOLS_ENABLED
#include "editor/editor_settings.h"
#endif
void LineEdit::edit() {
if (!is_inside_tree()) {
return;
}
if (!has_focus()) {
grab_focus();
return;
}
if (!editable || editing) {
return;
}
if (select_all_on_focus) {
if (Input::get_singleton()->is_mouse_button_pressed(MouseButton::LEFT)) {
// Select all when the mouse button is up.
pending_select_all_on_focus = true;
} else {
select_all();
}
}
editing = true;
_validate_caret_can_draw();
show_virtual_keyboard();
queue_redraw();
}
void LineEdit::unedit() {
if (!editing) {
return;
}
editing = false;
_validate_caret_can_draw();
apply_ime();
set_caret_column(caret_column); // Update scroll_offset.
if (DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_VIRTUAL_KEYBOARD) && virtual_keyboard_enabled) {
DisplayServer::get_singleton()->virtual_keyboard_hide();
}
if (deselect_on_focus_loss_enabled && !selection.drag_attempt) {
deselect();
}
}
bool LineEdit::is_editing() const {
return editing;
}
void LineEdit::set_keep_editing_on_text_submit(bool p_enabled) {
keep_editing_on_text_submit = p_enabled;
}
bool LineEdit::is_editing_kept_on_text_submit() const {
return keep_editing_on_text_submit;
}
void LineEdit::_close_ime_window() {
DisplayServer::WindowID wid = get_window() ? get_window()->get_window_id() : DisplayServer::INVALID_WINDOW_ID;
if (wid == DisplayServer::INVALID_WINDOW_ID || !DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_IME)) {
return;
}
DisplayServer::get_singleton()->window_set_ime_position(Point2(), wid);
DisplayServer::get_singleton()->window_set_ime_active(false, wid);
}
void LineEdit::_update_ime_window_position() {
DisplayServer::WindowID wid = get_window() ? get_window()->get_window_id() : DisplayServer::INVALID_WINDOW_ID;
if (wid == DisplayServer::INVALID_WINDOW_ID || !DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_IME)) {
return;
}
DisplayServer::get_singleton()->window_set_ime_active(true, wid);
Point2 pos = Point2(get_caret_pixel_pos().x, (get_size().y + theme_cache.font->get_height(theme_cache.font_size)) / 2) + get_global_position();
if (get_window()->get_embedder()) {
pos += get_viewport()->get_popup_base_transform().get_origin();
}
// The window will move to the updated position the next time the IME is updated, not immediately.
DisplayServer::get_singleton()->window_set_ime_position(pos, wid);
}
bool LineEdit::has_ime_text() const {
return !ime_text.is_empty();
}
void LineEdit::cancel_ime() {
if (!has_ime_text()) {
_close_ime_window();
return;
}
ime_text = String();
ime_selection = Vector2i();
alt_start = false;
alt_start_no_hold = false;
_close_ime_window();
_shape();
}
void LineEdit::apply_ime() {
if (!has_ime_text()) {
_close_ime_window();
return;
}
// Force apply the current IME text.
if (alt_start || alt_start_no_hold) {
cancel_ime();
if ((alt_code > 0x31 && alt_code < 0xd800) || (alt_code > 0xdfff && alt_code <= 0x10ffff)) {
char32_t ucodestr[2] = { (char32_t)alt_code, 0 };
insert_text_at_caret(ucodestr);
}
} else {
String insert_ime_text = ime_text;
cancel_ime();
insert_text_at_caret(insert_ime_text);
}
}
void LineEdit::_swap_current_input_direction() {
if (input_direction == TEXT_DIRECTION_LTR) {
input_direction = TEXT_DIRECTION_RTL;
} else {
input_direction = TEXT_DIRECTION_LTR;
}
set_caret_column(get_caret_column());
}
void LineEdit::_move_caret_left(bool p_select, bool p_move_by_word) {
if (selection.enabled && !p_select) {
set_caret_column(selection.begin);
deselect();
return;
}
shift_selection_check_pre(p_select);
if (p_move_by_word) {
int cc = caret_column;
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
if (words.is_empty() || cc <= words[0]) {
// Move to the start when there are no more words.
cc = 0;
} else {
for (int i = words.size() - 2; i >= 0; i = i - 2) {
if (words[i] < cc) {
cc = words[i];
break;
}
}
}
set_caret_column(cc);
} else {
if (caret_mid_grapheme_enabled) {
set_caret_column(get_caret_column() - 1);
} else {
set_caret_column(TS->shaped_text_prev_character_pos(text_rid, get_caret_column()));
}
}
shift_selection_check_post(p_select);
_reset_caret_blink_timer();
}
void LineEdit::_move_caret_right(bool p_select, bool p_move_by_word) {
if (selection.enabled && !p_select) {
set_caret_column(selection.end);
deselect();
return;
}
shift_selection_check_pre(p_select);
if (p_move_by_word) {
int cc = caret_column;
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
if (words.is_empty() || cc >= words[words.size() - 1]) {
// Move to the end when there are no more words.
cc = text.length();
} else {
for (int i = 1; i < words.size(); i = i + 2) {
if (words[i] > cc) {
cc = words[i];
break;
}
}
}
set_caret_column(cc);
} else {
if (caret_mid_grapheme_enabled) {
set_caret_column(get_caret_column() + 1);
} else {
set_caret_column(TS->shaped_text_next_character_pos(text_rid, get_caret_column()));
}
}
shift_selection_check_post(p_select);
_reset_caret_blink_timer();
}
void LineEdit::_move_caret_start(bool p_select) {
shift_selection_check_pre(p_select);
set_caret_column(0);
shift_selection_check_post(p_select);
}
void LineEdit::_move_caret_end(bool p_select) {
shift_selection_check_pre(p_select);
set_caret_column(text.length());
shift_selection_check_post(p_select);
}
void LineEdit::_backspace(bool p_word, bool p_all_to_left) {
if (!editable) {
return;
}
if (selection.enabled) {
selection_delete();
return;
}
if (caret_column == 0) {
return; // Nothing to do.
}
if (p_all_to_left) {
text = text.substr(caret_column);
_shape();
set_caret_column(0);
_text_changed();
return;
}
if (p_word) {
int cc = caret_column;
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
if (words.is_empty() || cc <= words[0]) {
// Delete to the start when there are no more words.
cc = 0;
} else {
for (int i = words.size() - 2; i >= 0; i = i - 2) {
if (words[i] < cc) {
cc = words[i];
break;
}
}
}
delete_text(cc, caret_column);
set_caret_column(cc);
} else {
delete_char();
}
}
void LineEdit::_delete(bool p_word, bool p_all_to_right) {
if (!editable) {
return;
}
if (selection.enabled) {
selection_delete();
return;
}
if (caret_column == text.length()) {
return; // Nothing to do.
}
if (p_all_to_right) {
text = text.substr(0, caret_column);
_shape();
_text_changed();
return;
}
if (p_word) {
int cc = caret_column;
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
if (words.is_empty() || cc >= words[words.size() - 1]) {
// Delete to the end when there are no more words.
cc = text.length();
} else {
for (int i = 1; i < words.size(); i = i + 2) {
if (words[i] > cc) {
cc = words[i];
break;
}
}
}
delete_text(caret_column, cc);
set_caret_column(caret_column);
} else {
if (caret_mid_grapheme_enabled) {
set_caret_column(caret_column + 1);
delete_char();
} else {
int cc = caret_column;
set_caret_column(TS->shaped_text_next_character_pos(text_rid, caret_column));
delete_text(cc, caret_column);
}
}
}
void LineEdit::unhandled_key_input(const Ref<InputEvent> &p_event) {
// Return to prevent editing if just focused.
if (!editing) {
return;
}
Ref<InputEventKey> k = p_event;
if (k.is_valid()) {
if (!k->is_pressed()) {
return;
}
// Handle Unicode (with modifiers active, process after shortcuts).
if (has_focus() && editable && (k->get_unicode() >= 32)) {
selection_delete();
char32_t ucodestr[2] = { (char32_t)k->get_unicode(), 0 };
int prev_len = text.length();
insert_text_at_caret(ucodestr);
if (text.length() != prev_len) {
_text_changed();
}
accept_event();
}
}
}
void LineEdit::gui_input(const Ref<InputEvent> &p_event) {
ERR_FAIL_COND(p_event.is_null());
Ref<InputEventMouseButton> b = p_event;
if (b.is_valid()) {
if (b->is_pressed() && b->get_button_index() == MouseButton::RIGHT) {
apply_ime();
if (editable && !selection.enabled) {
set_caret_at_pixel_pos(b->get_position().x);
}
if (context_menu_enabled) {
_update_context_menu();
menu->set_position(get_screen_position() + get_local_mouse_position());
menu->reset_size();
menu->popup();
}
if (editable && !editing) {
edit();
emit_signal(SNAME("editing_toggled"), true);
}
accept_event();
return;
}
if (editable && is_middle_mouse_paste_enabled() && b->is_pressed() && b->get_button_index() == MouseButton::MIDDLE && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
apply_ime();
String paste_buffer = DisplayServer::get_singleton()->clipboard_get_primary().strip_escapes();
deselect();
set_caret_at_pixel_pos(b->get_position().x);
if (!editing) {
edit();
emit_signal(SNAME("editing_toggled"), true);
}
if (!paste_buffer.is_empty()) {
insert_text_at_caret(paste_buffer);
if (!text_changed_dirty) {
if (is_inside_tree()) {
callable_mp(this, &LineEdit::_text_changed).call_deferred();
}
text_changed_dirty = true;
}
}
accept_event();
return;
}
if (b->get_button_index() != MouseButton::LEFT) {
return;
}
if (editing) {
_reset_caret_blink_timer();
}
if (b->is_pressed()) {
apply_ime();
accept_event(); // Don't pass event further when clicked on text field.
if (editable && !text.is_empty() && _is_over_clear_button(b->get_position())) {
clear_button_status.press_attempt = true;
clear_button_status.pressing_inside = true;
queue_redraw();
return;
}
if (b->is_shift_pressed()) {
shift_selection_check_pre(true);
}
set_caret_at_pixel_pos(b->get_position().x);
if (b->is_shift_pressed()) {
selection_fill_at_caret();
selection.creating = true;
} else {
if (selecting_enabled) {
const int triple_click_timeout = 600;
const int triple_click_tolerance = 5;
const bool is_triple_click = !b->is_double_click() && (OS::get_singleton()->get_ticks_msec() - last_dblclk) < triple_click_timeout && b->get_position().distance_to(last_dblclk_pos) < triple_click_tolerance;
if (is_triple_click && !text.is_empty()) {
// Triple-click select all.
selection.enabled = true;
selection.begin = 0;
selection.end = text.length();
selection.double_click = true;
last_dblclk = 0;
set_caret_column(selection.begin);
if (!pass && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
DisplayServer::get_singleton()->clipboard_set_primary(text);
}
} else if (b->is_double_click()) {
// Double-click select word.
last_dblclk = OS::get_singleton()->get_ticks_msec();
last_dblclk_pos = b->get_position();
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
for (int i = 0; i < words.size(); i = i + 2) {
if ((words[i] < caret_column && words[i + 1] > caret_column) || (i == words.size() - 2 && caret_column == words[i + 1])) {
selection.enabled = true;
selection.begin = words[i];
selection.end = words[i + 1];
selection.double_click = true;
selection.creating = true;
selection.start_column = caret_column;
set_caret_column(selection.end);
break;
}
}
if (!pass && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text());
}
}
}
selection.drag_attempt = false;
if (!selection.double_click) {
bool is_inside_sel = selection.enabled && caret_column >= selection.begin && caret_column <= selection.end;
if (drag_and_drop_selection_enabled && is_inside_sel) {
selection.drag_attempt = true;
} else {
deselect();
selection.start_column = caret_column;
selection.creating = true;
}
}
}
if (editable && !editing) {
edit();
emit_signal(SNAME("editing_toggled"), true);
return;
}
queue_redraw();
} else {
if (selection.enabled && !pass && b->get_button_index() == MouseButton::LEFT && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text());
}
if (editable && !text.is_empty() && clear_button_enabled) {
bool press_attempt = clear_button_status.press_attempt;
clear_button_status.press_attempt = false;
if (press_attempt && clear_button_status.pressing_inside && _is_over_clear_button(b->get_position())) {
clear();
return;
}
}
if ((!selection.creating) && (!selection.double_click)) {
deselect();
}
selection.creating = false;
selection.double_click = false;
if (!drag_action) {
selection.drag_attempt = false;
}
if (pending_select_all_on_focus) {
select_all();
pending_select_all_on_focus = false;
}
if (editable) {
show_virtual_keyboard();
}
}
queue_redraw();
return;
}
Ref<InputEventMouseMotion> m = p_event;
if (m.is_valid()) {
if (editable && !text.is_empty() && clear_button_enabled) {
bool last_press_inside = clear_button_status.pressing_inside;
clear_button_status.pressing_inside = clear_button_status.press_attempt && _is_over_clear_button(m->get_position());
if (last_press_inside != clear_button_status.pressing_inside) {
queue_redraw();
}
}
if (m->get_button_mask().has_flag(MouseButtonMask::LEFT)) {
if (selection.creating) {
set_caret_at_pixel_pos(m->get_position().x);
selection_fill_at_caret();
if (selection.double_click) {
// Expand selection to whole words.
PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
for (int i = 0; i < words.size(); i = i + 2) {
if ((words[i] < selection.begin && words[i + 1] > selection.begin) || (i == words.size() - 2 && selection.begin == words[i + 1])) {
selection.begin = words[i];
}
if ((words[i] < selection.end && words[i + 1] > selection.end) || (i == words.size() - 2 && selection.end == words[i + 1])) {
selection.end = words[i + 1];
selection.enabled = true;
break;
}
}
if (caret_column < selection.start_column) {
set_caret_column(selection.begin);
} else {
set_caret_column(selection.end);
}
}
}
}
if (drag_action && can_drop_data(m->get_position(), get_viewport()->gui_get_drag_data())) {
drag_caret_force_displayed = true;
set_caret_at_pixel_pos(m->get_position().x);
}
return;
}
Ref<InputEventKey> k = p_event;
if (k.is_null()) {
return;
}
if (editable && !editing && k->is_action_pressed("ui_text_submit", false)) {
edit();
emit_signal(SNAME("editing_toggled"), true);
accept_event();
return;
}
// Open context menu.
if (context_menu_enabled) {
if (k->is_action("ui_menu", true)) {
_update_context_menu();
Point2 pos = Point2(get_caret_pixel_pos().x, (get_size().y + theme_cache.font->get_height(theme_cache.font_size)) / 2);
menu->set_position(get_screen_position() + pos);
menu->reset_size();
menu->popup();
menu->grab_focus();
accept_event();
return;
}
}
if (is_shortcut_keys_enabled()) {
if (k->is_action("ui_copy", true)) {
copy_text();
accept_event();
return;
}
if (k->is_action("ui_text_select_all", true)) {
select();
accept_event();
return;
}
if (k->is_action("ui_cut", true)) {
if (editable) {
cut_text();
} else {
copy_text();
}
accept_event();
return;
}
}
if (!editing) {
return;
}
// Start Unicode input (hold).
if (k->is_alt_pressed() && k->get_keycode() == Key::KP_ADD && !alt_start && !alt_start_no_hold) {
if (selection.enabled) {
selection_delete();
}
alt_start = true;
alt_code = 0;
ime_text = "u";
ime_selection = Vector2i(0, -1);
_shape();
queue_redraw();
accept_event();
return;
}
// Start Unicode input (press).
if (k->is_action("ui_unicode_start", true) && !alt_start && !alt_start_no_hold) {
if (selection.enabled) {
selection_delete();
}
alt_start_no_hold = true;
alt_code = 0;
ime_text = "u";
ime_selection = Vector2i(0, -1);
_shape();
queue_redraw();
accept_event();
return;
}
// Update Unicode input.
if (k->is_pressed() && ((k->is_alt_pressed() && alt_start) || alt_start_no_hold)) {
if (k->get_keycode() >= Key::KEY_0 && k->get_keycode() <= Key::KEY_9) {
alt_code = alt_code << 4;
alt_code += (uint32_t)(k->get_keycode() - Key::KEY_0);
} else if (k->get_keycode() >= Key::KP_0 && k->get_keycode() <= Key::KP_9) {
alt_code = alt_code << 4;
alt_code += (uint32_t)(k->get_keycode() - Key::KP_0);
} else if (k->get_keycode() >= Key::A && k->get_keycode() <= Key::F) {
alt_code = alt_code << 4;
alt_code += (uint32_t)(k->get_keycode() - Key::A) + 10;
} else if ((Key)k->get_unicode() >= Key::KEY_0 && (Key)k->get_unicode() <= Key::KEY_9) {
alt_code = alt_code << 4;
alt_code += (uint32_t)((Key)k->get_unicode() - Key::KEY_0);
} else if ((Key)k->get_unicode() >= Key::A && (Key)k->get_unicode() <= Key::F) {
alt_code = alt_code << 4;
alt_code += (uint32_t)((Key)k->get_unicode() - Key::A) + 10;
} else if (k->get_physical_keycode() >= Key::KEY_0 && k->get_physical_keycode() <= Key::KEY_9) {
alt_code = alt_code << 4;
alt_code += (uint32_t)(k->get_physical_keycode() - Key::KEY_0);
}
if (k->get_keycode() == Key::BACKSPACE) {
alt_code = alt_code >> 4;
}
if (alt_code > 0x10ffff) {
alt_code = 0x10ffff;
}
if (alt_code > 0) {
ime_text = vformat("u%s", String::num_int64(alt_code, 16, true));
} else {
ime_text = "u";
}
ime_selection = Vector2i(0, -1);
_shape();
queue_redraw();
accept_event();
return;
}
// Submit Unicode input.
if ((!k->is_pressed() && alt_start && k->get_keycode() == Key::ALT) || (alt_start_no_hold && (k->is_action("ui_text_submit", true) || k->is_action("ui_accept", true)))) {
alt_start = false;
alt_start_no_hold = false;
if ((alt_code > 0x31 && alt_code < 0xd800) || (alt_code > 0xdfff && alt_code <= 0x10ffff)) {
ime_text = String();
ime_selection = Vector2i();
char32_t ucodestr[2] = { (char32_t)alt_code, 0 };
insert_text_at_caret(ucodestr);
} else {
ime_text = String();
ime_selection = Vector2i();
_shape();
}
queue_redraw();
accept_event();
return;
}
// Cancel Unicode input.
if (alt_start_no_hold && k->is_action("ui_cancel", true)) {
alt_start = false;
alt_start_no_hold = false;
ime_text = String();
ime_selection = Vector2i();
_shape();
queue_redraw();
accept_event();
return;
}
if (!k->is_pressed()) {
return;
}
// Default is ENTER and KP_ENTER. Cannot use ui_accept as default includes SPACE.
if (k->is_action_pressed("ui_text_submit")) {
emit_signal(SceneStringName(text_submitted), text);
if (DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_VIRTUAL_KEYBOARD) && virtual_keyboard_enabled) {
DisplayServer::get_singleton()->virtual_keyboard_hide();
}
if (editing && !keep_editing_on_text_submit) {
unedit();
emit_signal(SNAME("editing_toggled"), false);
}
accept_event();
return;
}
if (k->is_action("ui_cancel")) {
if (editing) {
unedit();
emit_signal(SNAME("editing_toggled"), false);
}
accept_event();
return;
}
if (is_shortcut_keys_enabled()) {
if (k->is_action("ui_paste", true)) {
paste_text();
accept_event();
return;
}
// Undo / Redo
if (k->is_action("ui_undo", true)) {
undo();
accept_event();
return;
}
if (k->is_action("ui_redo", true)) {
redo();
accept_event();
return;
}
}
// BACKSPACE
if (k->is_action("ui_text_backspace_all_to_left", true)) {
_backspace(false, true);
accept_event();
return;
}
if (k->is_action("ui_text_backspace_word", true)) {
_backspace(true);
accept_event();
return;
}
if (k->is_action("ui_text_backspace", true)) {
_backspace();
accept_event();
return;
}
// DELETE
if (k->is_action("ui_text_delete_all_to_right", true)) {
_delete(false, true);
accept_event();
return;
}
if (k->is_action("ui_text_delete_word", true)) {
_delete(true);
accept_event();
return;
}
if (k->is_action("ui_text_delete", true)) {
_delete();
accept_event();
return;
}
// Cursor Movement
k = k->duplicate();
bool shift_pressed = k->is_shift_pressed();
// Remove shift or else actions will not match. Use above variable for selection.
k->set_shift_pressed(false);
if (k->is_action("ui_text_caret_word_left", true)) {
_move_caret_left(shift_pressed, true);
accept_event();
return;
}
if (k->is_action("ui_text_caret_left", true)) {
_move_caret_left(shift_pressed);
accept_event();
return;
}
if (k->is_action("ui_text_caret_word_right", true)) {
_move_caret_right(shift_pressed, true);
accept_event();
return;
}
if (k->is_action("ui_text_caret_right", true)) {
_move_caret_right(shift_pressed, false);
accept_event();
return;
}
// Up = Home, Down = End
if (k->is_action("ui_text_caret_up", true) || k->is_action("ui_text_caret_line_start", true) || k->is_action("ui_text_caret_page_up", true)) {
_move_caret_start(shift_pressed);
accept_event();
return;
}
if (k->is_action("ui_text_caret_down", true) || k->is_action("ui_text_caret_line_end", true) || k->is_action("ui_text_caret_page_down", true)) {
_move_caret_end(shift_pressed);
accept_event();
return;
}
// Misc
if (k->is_action("ui_swap_input_direction", true)) {
_swap_current_input_direction();
accept_event();
return;
}
_reset_caret_blink_timer();
// Allow unicode handling if:
// * No Modifiers are pressed (except shift)
bool allow_unicode_handling = !(k->is_ctrl_pressed() || k->is_alt_pressed() || k->is_meta_pressed());
if (allow_unicode_handling && editable && k->get_unicode() >= 32) {
// Handle Unicode if no modifiers are active.
selection_delete();
char32_t ucodestr[2] = { (char32_t)k->get_unicode(), 0 };
int prev_len = text.length();
insert_text_at_caret(ucodestr);
if (text.length() != prev_len) {
if (!text_changed_dirty) {
if (is_inside_tree()) {
callable_mp(this, &LineEdit::_text_changed).call_deferred();
}
text_changed_dirty = true;
}
}
accept_event();
return;
}
}
void LineEdit::set_horizontal_alignment(HorizontalAlignment p_alignment) {
ERR_FAIL_INDEX((int)p_alignment, 4);
if (alignment == p_alignment) {
return;
}
alignment = p_alignment;
_shape();
queue_redraw();
}
HorizontalAlignment LineEdit::get_horizontal_alignment() const {
return alignment;
}
Variant LineEdit::get_drag_data(const Point2 &p_point) {
Variant ret = Control::get_drag_data(p_point);
if (ret != Variant()) {
return ret;
}
if (selection.drag_attempt && selection.enabled) {
String t = get_selected_text();
Label *l = memnew(Label);
l->set_text(t);
l->set_auto_translate_mode(AUTO_TRANSLATE_MODE_DISABLED); // Don't translate user input.
set_drag_preview(l);
return t;
}
return Variant();
}
bool LineEdit::can_drop_data(const Point2 &p_point, const Variant &p_data) const {
bool drop_override = Control::can_drop_data(p_point, p_data); // In case user wants to drop custom data.
if (drop_override) {
return drop_override;
}
return is_editable() && p_data.is_string();
}
void LineEdit::drop_data(const Point2 &p_point, const Variant &p_data) {
Control::drop_data(p_point, p_data);
if (p_data.is_string() && is_editable()) {
apply_ime();
set_caret_at_pixel_pos(p_point.x);
int caret_column_tmp = caret_column;
bool is_inside_sel = selection.enabled && caret_column >= selection.begin && caret_column <= selection.end;
if (Input::get_singleton()->is_key_pressed(Key::CMD_OR_CTRL)) {
is_inside_sel = selection.enabled && caret_column > selection.begin && caret_column < selection.end;
}
if (selection.drag_attempt) {
selection.drag_attempt = false;
if (!is_inside_sel) {
if (!Input::get_singleton()->is_key_pressed(Key::CMD_OR_CTRL)) {
if (caret_column_tmp > selection.end) {
caret_column_tmp = caret_column_tmp - (selection.end - selection.begin);
}
selection_delete();
}
set_caret_column(caret_column_tmp);
insert_text_at_caret(p_data);
}
} else if (selection.enabled && caret_column >= selection.begin && caret_column <= selection.end) {
caret_column_tmp = selection.begin;
selection_delete();
set_caret_column(caret_column_tmp);
insert_text_at_caret(p_data);
grab_focus();