weston/clients/keyboard.c

1042 lines
28 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* Copyright © 2012 Openismus GmbH
* Copyright © 2012 Intel Corporation
*
* 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 (including the next
* paragraph) 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 "config.h"
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <linux/input.h>
#include <cairo.h>
#include "window.h"
#include "input-method-unstable-v1-client-protocol.h"
#include "text-input-unstable-v1-client-protocol.h"
#include "shared/xalloc.h"
struct keyboard;
struct virtual_keyboard {
struct zwp_input_panel_v1 *input_panel;
struct zwp_input_method_v1 *input_method;
struct zwp_input_method_context_v1 *context;
struct display *display;
struct output *output;
char *preedit_string;
uint32_t preedit_style;
struct {
xkb_mod_mask_t shift_mask;
} keysym;
uint32_t serial;
uint32_t content_hint;
uint32_t content_purpose;
char *preferred_language;
char *surrounding_text;
uint32_t surrounding_cursor;
struct keyboard *keyboard;
bool toplevel;
};
enum key_type {
keytype_default,
keytype_backspace,
keytype_enter,
keytype_space,
keytype_switch,
keytype_symbols,
keytype_tab,
keytype_arrow_up,
keytype_arrow_left,
keytype_arrow_right,
keytype_arrow_down,
keytype_style
};
struct key {
enum key_type key_type;
char *label;
char *uppercase;
char *symbol;
unsigned int width;
};
struct layout {
const struct key *keys;
uint32_t count;
uint32_t columns;
uint32_t rows;
const char *language;
uint32_t text_direction;
};
static const struct key normal_keys[] = {
{ keytype_default, "q", "Q", "1", 1},
{ keytype_default, "w", "W", "2", 1},
{ keytype_default, "e", "E", "3", 1},
{ keytype_default, "r", "R", "4", 1},
{ keytype_default, "t", "T", "5", 1},
{ keytype_default, "y", "Y", "6", 1},
{ keytype_default, "u", "U", "7", 1},
{ keytype_default, "i", "I", "8", 1},
{ keytype_default, "o", "O", "9", 1},
{ keytype_default, "p", "P", "0", 1},
{ keytype_backspace, "<--", "<--", "<--", 2},
{ keytype_tab, "->|", "->|", "->|", 1},
{ keytype_default, "a", "A", "-", 1},
{ keytype_default, "s", "S", "@", 1},
{ keytype_default, "d", "D", "*", 1},
{ keytype_default, "f", "F", "^", 1},
{ keytype_default, "g", "G", ":", 1},
{ keytype_default, "h", "H", ";", 1},
{ keytype_default, "j", "J", "(", 1},
{ keytype_default, "k", "K", ")", 1},
{ keytype_default, "l", "L", "~", 1},
{ keytype_enter, "Enter", "Enter", "Enter", 2},
{ keytype_switch, "ABC", "abc", "ABC", 2},
{ keytype_default, "z", "Z", "/", 1},
{ keytype_default, "x", "X", "\'", 1},
{ keytype_default, "c", "C", "\"", 1},
{ keytype_default, "v", "V", "+", 1},
{ keytype_default, "b", "B", "=", 1},
{ keytype_default, "n", "N", "?", 1},
{ keytype_default, "m", "M", "!", 1},
{ keytype_default, ",", ",", "\\", 1},
{ keytype_default, ".", ".", "|", 1},
{ keytype_switch, "ABC", "abc", "ABC", 1},
{ keytype_symbols, "?123", "?123", "abc", 1},
{ keytype_space, "", "", "", 5},
{ keytype_arrow_up, "/\\", "/\\", "/\\", 1},
{ keytype_arrow_left, "<", "<", "<", 1},
{ keytype_arrow_right, ">", ">", ">", 1},
{ keytype_arrow_down, "\\/", "\\/", "\\/", 1},
{ keytype_style, "", "", "", 2}
};
static const struct key numeric_keys[] = {
{ keytype_default, "1", "1", "1", 1},
{ keytype_default, "2", "2", "2", 1},
{ keytype_default, "3", "3", "3", 1},
{ keytype_default, "4", "4", "4", 1},
{ keytype_default, "5", "5", "5", 1},
{ keytype_default, "6", "6", "6", 1},
{ keytype_default, "7", "7", "7", 1},
{ keytype_default, "8", "8", "8", 1},
{ keytype_default, "9", "9", "9", 1},
{ keytype_default, "0", "0", "0", 1},
{ keytype_backspace, "<--", "<--", "<--", 2},
{ keytype_space, "", "", "", 4},
{ keytype_enter, "Enter", "Enter", "Enter", 2},
{ keytype_arrow_up, "/\\", "/\\", "/\\", 1},
{ keytype_arrow_left, "<", "<", "<", 1},
{ keytype_arrow_right, ">", ">", ">", 1},
{ keytype_arrow_down, "\\/", "\\/", "\\/", 1},
{ keytype_style, "", "", "", 2}
};
static const struct key arabic_keys[] = {
{ keytype_default, "ض", "", "۱", 1},
{ keytype_default, "ص", "", "۲", 1},
{ keytype_default, "ث", "", "۳", 1},
{ keytype_default, "ق", "", "۴", 1},
{ keytype_default, "ف", "", "۵", 1},
{ keytype_default, "غ", "", "۶", 1},
{ keytype_default, "ع", "`", "۷", 1},
{ keytype_default, "ه", "٪", "۸", 1},
{ keytype_default, "خ", ">", "۹", 1},
{ keytype_default, "ح", "<", "۰", 1},
{ keytype_backspace, "-->", "-->", "-->", 2},
{ keytype_tab, "->|", "->|", "->|", 1},
{ keytype_default, "ش", "", "", 1},
{ keytype_default, "س", "", "!", 1},
{ keytype_default, "ي", "[", "@", 1},
{ keytype_default, "ب", "]", "#", 1},
{ keytype_default, "ل", "", "$", 1},
{ keytype_default, "ا", "أ", "%", 1},
{ keytype_default, "ت", "-", "^", 1},
{ keytype_default, "ن", "x", "&", 1},
{ keytype_default, "م", "/", "*", 1},
{ keytype_default, "ك", ":", "_", 1},
{ keytype_default, "د", "\"", "+", 1},
{ keytype_enter, "Enter", "Enter", "Enter", 2},
{ keytype_switch, "Shift", "Base", "Shift", 2},
{ keytype_default, "ئ", "~", ")", 1},
{ keytype_default, "ء", "°", "(", 1},
{ keytype_default, "ؤ", "{", "\"", 1},
{ keytype_default, "ر", "}", "\'", 1},
{ keytype_default, "ى", "", "؟", 1},
{ keytype_default, "ة", "'", "!", 1},
{ keytype_default, "و", ",", ";", 1},
{ keytype_default, "", ".", "\\", 1},
{ keytype_default, "ظ", "؟", "=", 1},
{ keytype_switch, "Shift", "Base", "Shift", 2},
{ keytype_symbols, "؟٣٢١", "؟٣٢١", "Base", 1},
{ keytype_default, "", "", "|", 1},
{ keytype_default, ",", "،", "،", 1},
{ keytype_space, "", "", "", 6},
{ keytype_default, ".", "ذ", "]", 1},
{ keytype_default, "ط", "", "[", 1},
{ keytype_style, "", "", "", 2}
};
static const struct layout normal_layout = {
normal_keys,
sizeof(normal_keys) / sizeof(*normal_keys),
12,
4,
"en",
ZWP_TEXT_INPUT_V1_TEXT_DIRECTION_LTR
};
static const struct layout numeric_layout = {
numeric_keys,
sizeof(numeric_keys) / sizeof(*numeric_keys),
12,
2,
"en",
ZWP_TEXT_INPUT_V1_TEXT_DIRECTION_LTR
};
static const struct layout arabic_layout = {
arabic_keys,
sizeof(arabic_keys) / sizeof(*arabic_keys),
13,
4,
"ar",
ZWP_TEXT_INPUT_V1_TEXT_DIRECTION_RTL
};
static const char *style_labels[] = {
"default",
"none",
"active",
"inactive",
"highlight",
"underline",
"selection",
"incorrect"
};
static const double key_width = 60;
static const double key_height = 50;
enum keyboard_state {
KEYBOARD_STATE_DEFAULT,
KEYBOARD_STATE_UPPERCASE,
KEYBOARD_STATE_SYMBOLS
};
struct keyboard {
struct virtual_keyboard *keyboard;
struct window *window;
struct widget *widget;
enum keyboard_state state;
};
static void __attribute__ ((format (printf, 1, 2)))
dbg(const char *fmt, ...)
{
#ifdef DEBUG
va_list argp;
va_start(argp, fmt);
vfprintf(stderr, fmt, argp);
va_end(argp);
#endif
}
static const char *
label_from_key(struct keyboard *keyboard,
const struct key *key)
{
if (key->key_type == keytype_style)
return style_labels[keyboard->keyboard->preedit_style];
switch(keyboard->state) {
case KEYBOARD_STATE_DEFAULT:
return key->label;
case KEYBOARD_STATE_UPPERCASE:
return key->uppercase;
case KEYBOARD_STATE_SYMBOLS:
return key->symbol;
}
return "";
}
static void
draw_key(struct keyboard *keyboard,
const struct key *key,
cairo_t *cr,
unsigned int row,
unsigned int col)
{
const char *label;
cairo_text_extents_t extents;
cairo_save(cr);
cairo_rectangle(cr,
col * key_width, row * key_height,
key->width * key_width, key_height);
cairo_clip(cr);
/* Paint frame */
cairo_rectangle(cr,
col * key_width, row * key_height,
key->width * key_width, key_height);
cairo_set_line_width(cr, 3);
cairo_stroke(cr);
/* Paint text */
label = label_from_key(keyboard, key);
cairo_text_extents(cr, label, &extents);
cairo_translate(cr,
col * key_width,
row * key_height);
cairo_translate(cr,
(key->width * key_width - extents.width) / 2,
(key_height - extents.y_bearing) / 2);
cairo_show_text(cr, label);
cairo_restore(cr);
}
static const struct layout *
get_current_layout(struct virtual_keyboard *keyboard)
{
switch (keyboard->content_purpose) {
case ZWP_TEXT_INPUT_V1_CONTENT_PURPOSE_DIGITS:
case ZWP_TEXT_INPUT_V1_CONTENT_PURPOSE_NUMBER:
return &numeric_layout;
default:
if (keyboard->preferred_language &&
strcmp(keyboard->preferred_language, "ar") == 0)
return &arabic_layout;
else
return &normal_layout;
}
}
static void
redraw_handler(struct widget *widget, void *data)
{
struct keyboard *keyboard = data;
cairo_surface_t *surface;
struct rectangle allocation;
cairo_t *cr;
unsigned int i;
unsigned int row = 0, col = 0;
const struct layout *layout;
layout = get_current_layout(keyboard->keyboard);
surface = window_get_surface(keyboard->window);
widget_get_allocation(keyboard->widget, &allocation);
cr = cairo_create(surface);
cairo_rectangle(cr, allocation.x, allocation.y, allocation.width, allocation.height);
cairo_clip(cr);
cairo_select_font_face(cr, "sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size(cr, 16);
cairo_translate(cr, allocation.x, allocation.y);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 1, 1, 1, 0.75);
cairo_rectangle(cr, 0, 0, layout->columns * key_width, layout->rows * key_height);
cairo_paint(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
for (i = 0; i < layout->count; ++i) {
cairo_set_source_rgb(cr, 0, 0, 0);
draw_key(keyboard, &layout->keys[i], cr, row, col);
col += layout->keys[i].width;
if (col >= layout->columns) {
row += 1;
col = 0;
}
}
cairo_destroy(cr);
cairo_surface_destroy(surface);
}
static void
resize_handler(struct widget *widget,
int32_t width, int32_t height, void *data)
{
/* struct keyboard *keyboard = data; */
}
static char *
insert_text(const char *text, uint32_t offset, const char *insert)
{
int tlen = strlen(text), ilen = strlen(insert);
char *new_text = xmalloc(tlen + ilen + 1);
memcpy(new_text, text, offset);
memcpy(new_text + offset, insert, ilen);
memcpy(new_text + offset + ilen, text + offset, tlen - offset);
new_text[tlen + ilen] = '\0';
return new_text;
}
static void
virtual_keyboard_commit_preedit(struct virtual_keyboard *keyboard)
{
char *surrounding_text;
if (!keyboard->preedit_string ||
strlen(keyboard->preedit_string) == 0)
return;
zwp_input_method_context_v1_cursor_position(keyboard->context,
0, 0);
zwp_input_method_context_v1_commit_string(keyboard->context,
keyboard->serial,
keyboard->preedit_string);
if (keyboard->surrounding_text) {
surrounding_text = insert_text(keyboard->surrounding_text,
keyboard->surrounding_cursor,
keyboard->preedit_string);
free(keyboard->surrounding_text);
keyboard->surrounding_text = surrounding_text;
keyboard->surrounding_cursor += strlen(keyboard->preedit_string);
} else {
keyboard->surrounding_text = strdup(keyboard->preedit_string);
keyboard->surrounding_cursor = strlen(keyboard->preedit_string);
}
free(keyboard->preedit_string);
keyboard->preedit_string = strdup("");
}
static void
virtual_keyboard_send_preedit(struct virtual_keyboard *keyboard,
int32_t cursor)
{
uint32_t index = strlen(keyboard->preedit_string);
if (keyboard->preedit_style)
zwp_input_method_context_v1_preedit_styling(keyboard->context,
0,
strlen(keyboard->preedit_string),
keyboard->preedit_style);
if (cursor > 0)
index = cursor;
zwp_input_method_context_v1_preedit_cursor(keyboard->context,
index);
zwp_input_method_context_v1_preedit_string(keyboard->context,
keyboard->serial,
keyboard->preedit_string,
keyboard->preedit_string);
}
static const char *
prev_utf8_char(const char *s, const char *p)
{
for (--p; p >= s; --p) {
if ((*p & 0xc0) != 0x80)
return p;
}
return NULL;
}
static void
delete_before_cursor(struct virtual_keyboard *keyboard)
{
const char *start, *end;
if (!keyboard->surrounding_text) {
dbg("delete_before_cursor: No surrounding text available\n");
return;
}
start = prev_utf8_char(keyboard->surrounding_text,
keyboard->surrounding_text + keyboard->surrounding_cursor);
if (!start) {
dbg("delete_before_cursor: No previous character to delete\n");
return;
}
end = keyboard->surrounding_text + keyboard->surrounding_cursor;
zwp_input_method_context_v1_delete_surrounding_text(keyboard->context,
(start - keyboard->surrounding_text) - keyboard->surrounding_cursor,
end - start);
zwp_input_method_context_v1_commit_string(keyboard->context,
keyboard->serial,
"");
/* Update surrounding text */
keyboard->surrounding_cursor = start - keyboard->surrounding_text;
keyboard->surrounding_text[keyboard->surrounding_cursor] = '\0';
if (*end)
memmove(keyboard->surrounding_text + keyboard->surrounding_cursor, end, strlen(end));
}
static char *
append(char *s1, const char *s2)
{
int len1, len2;
char *s;
len1 = strlen(s1);
len2 = strlen(s2);
s = xrealloc(s1, len1 + len2 + 1);
memcpy(s + len1, s2, len2);
s[len1 + len2] = '\0';
return s;
}
static void
keyboard_handle_key(struct keyboard *keyboard, uint32_t time, const struct key *key, struct input *input, enum wl_pointer_button_state state)
{
const char *label = NULL;
switch(keyboard->state) {
case KEYBOARD_STATE_DEFAULT :
label = key->label;
break;
case KEYBOARD_STATE_UPPERCASE :
label = key->uppercase;
break;
case KEYBOARD_STATE_SYMBOLS :
label = key->symbol;
break;
}
xkb_mod_mask_t mod_mask = keyboard->state == KEYBOARD_STATE_DEFAULT ? 0 : keyboard->keyboard->keysym.shift_mask;
uint32_t key_state = (state == WL_POINTER_BUTTON_STATE_PRESSED) ? WL_KEYBOARD_KEY_STATE_PRESSED : WL_KEYBOARD_KEY_STATE_RELEASED;
switch (key->key_type) {
case keytype_default:
if (state != WL_POINTER_BUTTON_STATE_PRESSED)
break;
keyboard->keyboard->preedit_string =
append(keyboard->keyboard->preedit_string,
label);
virtual_keyboard_send_preedit(keyboard->keyboard, -1);
break;
case keytype_backspace:
if (state != WL_POINTER_BUTTON_STATE_PRESSED)
break;
if (strlen(keyboard->keyboard->preedit_string) == 0) {
delete_before_cursor(keyboard->keyboard);
} else {
keyboard->keyboard->preedit_string[strlen(keyboard->keyboard->preedit_string) - 1] = '\0';
virtual_keyboard_send_preedit(keyboard->keyboard, -1);
}
break;
case keytype_enter:
virtual_keyboard_commit_preedit(keyboard->keyboard);
zwp_input_method_context_v1_keysym(keyboard->keyboard->context,
display_get_serial(keyboard->keyboard->display),
time,
XKB_KEY_Return, key_state, mod_mask);
break;
case keytype_space:
if (state != WL_POINTER_BUTTON_STATE_PRESSED)
break;
keyboard->keyboard->preedit_string =
append(keyboard->keyboard->preedit_string, " ");
virtual_keyboard_commit_preedit(keyboard->keyboard);
break;
case keytype_switch:
if (state != WL_POINTER_BUTTON_STATE_PRESSED)
break;
switch(keyboard->state) {
case KEYBOARD_STATE_DEFAULT:
keyboard->state = KEYBOARD_STATE_UPPERCASE;
break;
case KEYBOARD_STATE_UPPERCASE:
keyboard->state = KEYBOARD_STATE_DEFAULT;
break;
case KEYBOARD_STATE_SYMBOLS:
keyboard->state = KEYBOARD_STATE_UPPERCASE;
break;
}
break;
case keytype_symbols:
if (state != WL_POINTER_BUTTON_STATE_PRESSED)
break;
switch(keyboard->state) {
case KEYBOARD_STATE_DEFAULT:
keyboard->state = KEYBOARD_STATE_SYMBOLS;
break;
case KEYBOARD_STATE_UPPERCASE:
keyboard->state = KEYBOARD_STATE_SYMBOLS;
break;
case KEYBOARD_STATE_SYMBOLS:
keyboard->state = KEYBOARD_STATE_DEFAULT;
break;
}
break;
case keytype_tab:
virtual_keyboard_commit_preedit(keyboard->keyboard);
zwp_input_method_context_v1_keysym(keyboard->keyboard->context,
display_get_serial(keyboard->keyboard->display),
time,
XKB_KEY_Tab, key_state, mod_mask);
break;
case keytype_arrow_up:
virtual_keyboard_commit_preedit(keyboard->keyboard);
zwp_input_method_context_v1_keysym(keyboard->keyboard->context,
display_get_serial(keyboard->keyboard->display),
time,
XKB_KEY_Up, key_state, mod_mask);
break;
case keytype_arrow_left:
virtual_keyboard_commit_preedit(keyboard->keyboard);
zwp_input_method_context_v1_keysym(keyboard->keyboard->context,
display_get_serial(keyboard->keyboard->display),
time,
XKB_KEY_Left, key_state, mod_mask);
break;
case keytype_arrow_right:
virtual_keyboard_commit_preedit(keyboard->keyboard);
zwp_input_method_context_v1_keysym(keyboard->keyboard->context,
display_get_serial(keyboard->keyboard->display),
time,
XKB_KEY_Right, key_state, mod_mask);
break;
case keytype_arrow_down:
virtual_keyboard_commit_preedit(keyboard->keyboard);
zwp_input_method_context_v1_keysym(keyboard->keyboard->context,
display_get_serial(keyboard->keyboard->display),
time,
XKB_KEY_Down, key_state, mod_mask);
break;
case keytype_style:
if (state != WL_POINTER_BUTTON_STATE_PRESSED)
break;
keyboard->keyboard->preedit_style = (keyboard->keyboard->preedit_style + 1) % 8; /* TODO */
virtual_keyboard_send_preedit(keyboard->keyboard, -1);
break;
}
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
uint32_t button,
enum wl_pointer_button_state state, void *data)
{
struct keyboard *keyboard = data;
struct rectangle allocation;
int32_t x, y;
int row, col;
unsigned int i;
const struct layout *layout;
layout = get_current_layout(keyboard->keyboard);
if (button != BTN_LEFT) {
return;
}
input_get_position(input, &x, &y);
widget_get_allocation(keyboard->widget, &allocation);
x -= allocation.x;
y -= allocation.y;
row = y / key_height;
col = x / key_width + row * layout->columns;
for (i = 0; i < layout->count; ++i) {
col -= layout->keys[i].width;
if (col < 0) {
keyboard_handle_key(keyboard, time, &layout->keys[i], input, state);
break;
}
}
widget_schedule_redraw(widget);
}
static void
touch_handler(struct input *input, uint32_t time,
float x, float y, uint32_t state, void *data)
{
struct keyboard *keyboard = data;
struct rectangle allocation;
int row, col;
unsigned int i;
const struct layout *layout;
layout = get_current_layout(keyboard->keyboard);
widget_get_allocation(keyboard->widget, &allocation);
x -= allocation.x;
y -= allocation.y;
row = (int)y / key_height;
col = (int)x / key_width + row * layout->columns;
for (i = 0; i < layout->count; ++i) {
col -= layout->keys[i].width;
if (col < 0) {
keyboard_handle_key(keyboard, time,
&layout->keys[i], input, state);
break;
}
}
widget_schedule_redraw(keyboard->widget);
}
static void
touch_down_handler(struct widget *widget, struct input *input,
uint32_t serial, uint32_t time, int32_t id,
float x, float y, void *data)
{
touch_handler(input, time, x, y,
WL_POINTER_BUTTON_STATE_PRESSED, data);
}
static void
touch_up_handler(struct widget *widget, struct input *input,
uint32_t serial, uint32_t time, int32_t id,
void *data)
{
float x, y;
input_get_touch(input, id, &x, &y);
touch_handler(input, time, x, y,
WL_POINTER_BUTTON_STATE_RELEASED, data);
}
static void
handle_surrounding_text(void *data,
struct zwp_input_method_context_v1 *context,
const char *text,
uint32_t cursor,
uint32_t anchor)
{
struct virtual_keyboard *keyboard = data;
free(keyboard->surrounding_text);
keyboard->surrounding_text = strdup(text);
keyboard->surrounding_cursor = cursor;
}
static void
handle_reset(void *data,
struct zwp_input_method_context_v1 *context)
{
struct virtual_keyboard *keyboard = data;
dbg("Reset pre-edit buffer\n");
if (strlen(keyboard->preedit_string)) {
free(keyboard->preedit_string);
keyboard->preedit_string = strdup("");
}
}
static void
handle_content_type(void *data,
struct zwp_input_method_context_v1 *context,
uint32_t hint,
uint32_t purpose)
{
struct virtual_keyboard *keyboard = data;
keyboard->content_hint = hint;
keyboard->content_purpose = purpose;
}
static void
handle_invoke_action(void *data,
struct zwp_input_method_context_v1 *context,
uint32_t button,
uint32_t index)
{
struct virtual_keyboard *keyboard = data;
if (button != BTN_LEFT)
return;
virtual_keyboard_send_preedit(keyboard, index);
}
static void
handle_commit_state(void *data,
struct zwp_input_method_context_v1 *context,
uint32_t serial)
{
struct virtual_keyboard *keyboard = data;
const struct layout *layout;
keyboard->serial = serial;
layout = get_current_layout(keyboard);
if (keyboard->surrounding_text)
dbg("Surrounding text updated: %s\n", keyboard->surrounding_text);
window_schedule_resize(keyboard->keyboard->window,
layout->columns * key_width,
layout->rows * key_height);
zwp_input_method_context_v1_language(context,
keyboard->serial,
layout->language);
zwp_input_method_context_v1_text_direction(context,
keyboard->serial,
layout->text_direction);
widget_schedule_redraw(keyboard->keyboard->widget);
}
static void
handle_preferred_language(void *data,
struct zwp_input_method_context_v1 *context,
const char *language)
{
struct virtual_keyboard *keyboard = data;
if (keyboard->preferred_language)
free(keyboard->preferred_language);
keyboard->preferred_language = NULL;
if (language)
keyboard->preferred_language = strdup(language);
}
static const struct zwp_input_method_context_v1_listener input_method_context_listener = {
handle_surrounding_text,
handle_reset,
handle_content_type,
handle_invoke_action,
handle_commit_state,
handle_preferred_language
};
static void
input_method_activate(void *data,
struct zwp_input_method_v1 *input_method,
struct zwp_input_method_context_v1 *context)
{
struct virtual_keyboard *keyboard = data;
struct wl_array modifiers_map;
const struct layout *layout;
keyboard->keyboard->state = KEYBOARD_STATE_DEFAULT;
if (keyboard->context)
zwp_input_method_context_v1_destroy(keyboard->context);
if (keyboard->preedit_string)
free(keyboard->preedit_string);
keyboard->preedit_string = strdup("");
keyboard->content_hint = 0;
keyboard->content_purpose = 0;
free(keyboard->preferred_language);
keyboard->preferred_language = NULL;
free(keyboard->surrounding_text);
keyboard->surrounding_text = NULL;
keyboard->serial = 0;
keyboard->context = context;
zwp_input_method_context_v1_add_listener(context,
&input_method_context_listener,
keyboard);
wl_array_init(&modifiers_map);
keysym_modifiers_add(&modifiers_map, "Shift");
keysym_modifiers_add(&modifiers_map, "Control");
keysym_modifiers_add(&modifiers_map, "Mod1");
zwp_input_method_context_v1_modifiers_map(context, &modifiers_map);
keyboard->keysym.shift_mask = keysym_modifiers_get_mask(&modifiers_map, "Shift");
wl_array_release(&modifiers_map);
layout = get_current_layout(keyboard);
window_schedule_resize(keyboard->keyboard->window,
layout->columns * key_width,
layout->rows * key_height);
zwp_input_method_context_v1_language(context,
keyboard->serial,
layout->language);
zwp_input_method_context_v1_text_direction(context,
keyboard->serial,
layout->text_direction);
widget_schedule_redraw(keyboard->keyboard->widget);
}
static void
input_method_deactivate(void *data,
struct zwp_input_method_v1 *input_method,
struct zwp_input_method_context_v1 *context)
{
struct virtual_keyboard *keyboard = data;
if (!keyboard->context)
return;
zwp_input_method_context_v1_destroy(keyboard->context);
keyboard->context = NULL;
}
static const struct zwp_input_method_v1_listener input_method_listener = {
input_method_activate,
input_method_deactivate
};
static void
global_handler(struct display *display, uint32_t name,
const char *interface, uint32_t version, void *data)
{
struct virtual_keyboard *keyboard = data;
if (!strcmp(interface, "zwp_input_panel_v1")) {
keyboard->input_panel =
display_bind(display, name, &zwp_input_panel_v1_interface, 1);
} else if (!strcmp(interface, "zwp_input_method_v1")) {
keyboard->input_method =
display_bind(display, name,
&zwp_input_method_v1_interface, 1);
zwp_input_method_v1_add_listener(keyboard->input_method,
&input_method_listener,
keyboard);
}
}
static void
set_toplevel(struct output *output, struct virtual_keyboard *virtual_keyboard)
{
struct zwp_input_panel_surface_v1 *ips;
struct keyboard *keyboard = virtual_keyboard->keyboard;
ips = zwp_input_panel_v1_get_input_panel_surface(virtual_keyboard->input_panel,
window_get_wl_surface(keyboard->window));
zwp_input_panel_surface_v1_set_toplevel(ips,
output_get_wl_output(output),
ZWP_INPUT_PANEL_SURFACE_V1_POSITION_CENTER_BOTTOM);
virtual_keyboard->toplevel = true;
}
static void
display_output_handler(struct output *output, void *data) {
struct virtual_keyboard *keyboard = data;
if (!keyboard->toplevel)
set_toplevel(output, keyboard);
}
static void
keyboard_create(struct virtual_keyboard *virtual_keyboard)
{
struct keyboard *keyboard;
const struct layout *layout;
layout = get_current_layout(virtual_keyboard);
keyboard = xzalloc(sizeof *keyboard);
keyboard->keyboard = virtual_keyboard;
keyboard->window = window_create_custom(virtual_keyboard->display);
keyboard->widget = window_add_widget(keyboard->window, keyboard);
virtual_keyboard->keyboard = keyboard;
window_set_title(keyboard->window, "Virtual keyboard");
window_set_user_data(keyboard->window, keyboard);
widget_set_redraw_handler(keyboard->widget, redraw_handler);
widget_set_resize_handler(keyboard->widget, resize_handler);
widget_set_button_handler(keyboard->widget, button_handler);
widget_set_touch_down_handler(keyboard->widget, touch_down_handler);
widget_set_touch_up_handler(keyboard->widget, touch_up_handler);
window_schedule_resize(keyboard->window,
layout->columns * key_width,
layout->rows * key_height);
display_set_output_configure_handler(virtual_keyboard->display,
display_output_handler);
}
int
main(int argc, char *argv[])
{
struct virtual_keyboard virtual_keyboard;
memset(&virtual_keyboard, 0, sizeof virtual_keyboard);
virtual_keyboard.display = display_create(&argc, argv);
if (virtual_keyboard.display == NULL) {
fprintf(stderr, "failed to create display: %s\n",
strerror(errno));
return -1;
}
display_set_user_data(virtual_keyboard.display, &virtual_keyboard);
display_set_global_handler(virtual_keyboard.display, global_handler);
if (virtual_keyboard.input_panel == NULL) {
fprintf(stderr, "No input panel global\n");
return -1;
}
keyboard_create(&virtual_keyboard);
display_run(virtual_keyboard.display);
return 0;
}