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Merge pull request #3341 from RedSoxFan/mouse-bindings-improved

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Improve mouse button parsing: helpers and bind{code/sym}
master
Ian Fan 6 years ago committed by GitHub
parent 058428b8df eefa6b1ad3
commit 15ac580b28
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 157 additions and 55 deletions
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3
include/sway/config.h
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@ -27,7 +27,8 @@ struct sway_variable {
enum binding_input_type {
BINDING_KEYCODE,
BINDING_KEYSYM,
BINDING_MOUSE,
BINDING_MOUSECODE,
BINDING_MOUSESYM,
};
enum binding_flags {

8
include/sway/input/cursor.h
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@ -86,4 +86,12 @@ void cursor_warp_to_container(struct sway_cursor *cursor,
void cursor_warp_to_workspace(struct sway_cursor *cursor,
struct sway_workspace *workspace);
uint32_t get_mouse_bindsym(const char *name, char **error);
uint32_t get_mouse_bindcode(const char *name, char **error);
// Considers both bindsym and bindcode
uint32_t get_mouse_button(const char *name, char **error);
#endif

126
sway/commands/bind.c
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@ -85,69 +85,91 @@ static int key_qsort_cmp(const void *keyp_a, const void *keyp_b) {
*/
static struct cmd_results *identify_key(const char* name, bool first_key,
uint32_t* key_val, enum binding_input_type* type) {
if (*type == BINDING_KEYCODE) {
// check for keycode
xkb_keycode_t keycode = strtol(name, NULL, 10);
if (!xkb_keycode_is_legal_ext(keycode)) {
return cmd_results_new(CMD_INVALID, "bindcode",
"Invalid keycode '%s'", name);
if (*type == BINDING_MOUSECODE) {
// check for mouse bindcodes
char *message = NULL;
uint32_t button = get_mouse_bindcode(name, &message);
if (!button) {
if (message) {
struct cmd_results *error =
cmd_results_new(CMD_INVALID, "bindcode", message);
free(message);
return error;
} else {
return cmd_results_new(CMD_INVALID, "bindcode",
"Unknown button code %s", name);
}
}
*key_val = keycode;
} else {
// check for keysym
xkb_keysym_t keysym = xkb_keysym_from_name(name,
XKB_KEYSYM_CASE_INSENSITIVE);
// Check for mouse binding
uint32_t button = 0;
if (strncasecmp(name, "button", strlen("button")) == 0) {
// Map to x11 mouse buttons
button = name[strlen("button")] - '0';
if (button < 1 || button > 9 || strlen(name) > strlen("button0")) {
*key_val = button;
} else if (*type == BINDING_MOUSESYM) {
// check for mouse bindsyms (x11 buttons or event names)
char *message = NULL;
uint32_t button = get_mouse_bindsym(name, &message);
if (!button) {
if (message) {
struct cmd_results *error =
cmd_results_new(CMD_INVALID, "bindsym", message);
free(message);
return error;
} else if (!button) {
return cmd_results_new(CMD_INVALID, "bindsym",
"Only buttons 1-9 are supported. For other mouse "
"buttons, use the name of the event code.");
"Unknown button %s", name);
}
uint32_t buttons[] = {BTN_LEFT, BTN_MIDDLE, BTN_RIGHT,
SWAY_SCROLL_UP, SWAY_SCROLL_DOWN, SWAY_SCROLL_LEFT,
SWAY_SCROLL_RIGHT, BTN_SIDE, BTN_EXTRA};
button = buttons[button - 1];
} else if (strncmp(name, "BTN_", strlen("BTN_")) == 0) {
// Get event code
int code = libevdev_event_code_from_name(EV_KEY, name);
if (code == -1) {
return cmd_results_new(CMD_INVALID, "bindsym",
"Invalid event code name %s", name);
}
*key_val = button;
} else if (*type == BINDING_KEYCODE) {
// check for keycode. If it is the first key, allow mouse bindcodes
if (first_key) {
char *message = NULL;
uint32_t button = get_mouse_bindcode(name, &message);
free(message);
if (button) {
*type = BINDING_MOUSECODE;
*key_val = button;
return NULL;
}
button = code;
}
if (*type == BINDING_KEYSYM) {
if (button) {
if (first_key) {
*type = BINDING_MOUSE;
*key_val = button;
} else {
return cmd_results_new(CMD_INVALID, "bindsym",
"Mixed button '%s' into key sequence", name);
}
} else if (keysym) {
*key_val = keysym;
xkb_keycode_t keycode = strtol(name, NULL, 10);
if (!xkb_keycode_is_legal_ext(keycode)) {
if (first_key) {
return cmd_results_new(CMD_INVALID, "bindcode",
"Invalid keycode or button code '%s'", name);
} else {
return cmd_results_new(CMD_INVALID, "bindsym",
"Unknown key '%s'", name);
return cmd_results_new(CMD_INVALID, "bindcode",
"Invalid keycode '%s'", name);
}
} else {
if (button) {
}
*key_val = keycode;
} else {
// check for keysym. If it is the first key, allow mouse bindsyms
if (first_key) {
char *message = NULL;
uint32_t button = get_mouse_bindsym(name, &message);
if (message) {
struct cmd_results *error =
cmd_results_new(CMD_INVALID, "bindsym", message);
free(message);
return error;
} else if (button) {
*type = BINDING_MOUSESYM;
*key_val = button;
} else if (keysym) {
return NULL;
}
}
xkb_keysym_t keysym = xkb_keysym_from_name(name,
XKB_KEYSYM_CASE_INSENSITIVE);
if (!keysym) {
if (first_key) {
return cmd_results_new(CMD_INVALID, "bindsym",
"Mixed keysym '%s' into button sequence", name);
"Unknown key or button '%s'", name);
} else {
return cmd_results_new(CMD_INVALID, "bindsym",
"Unknown button '%s'", name);
"Unknown key '%s'", name);
}
}
*key_val = keysym;
}
return NULL;
}
@ -201,7 +223,8 @@ static struct cmd_results *cmd_bindsym_or_bindcode(int argc, char **argv,
}
if (binding->flags & (BINDING_BORDER | BINDING_CONTENTS | BINDING_TITLEBAR)
|| exclude_titlebar) {
binding->type = BINDING_MOUSE;
binding->type = binding->type == BINDING_KEYCODE ?
BINDING_MOUSECODE : BINDING_MOUSESYM;
}
if (argc < 2) {
@ -249,7 +272,8 @@ static struct cmd_results *cmd_bindsym_or_bindcode(int argc, char **argv,
// that this is one
if (exclude_titlebar) {
binding->flags &= ~BINDING_TITLEBAR;
} else if (binding->type == BINDING_MOUSE) {
} else if (binding->type == BINDING_MOUSECODE
|| binding->type == BINDING_MOUSESYM) {
binding->flags |= BINDING_TITLEBAR;
}

65
sway/input/cursor.c
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@ -2,8 +2,10 @@
#include <math.h>
#include <libevdev/libevdev.h>
#include <linux/input-event-codes.h>
#include <errno.h>
#include <float.h>
#include <limits.h>
#include <strings.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/types/wlr_idle.h>
@ -1533,3 +1535,66 @@ void cursor_warp_to_workspace(struct sway_cursor *cursor,
wlr_cursor_warp(cursor->cursor, NULL, x, y);
}
uint32_t get_mouse_bindsym(const char *name, char **error) {
if (strncasecmp(name, "button", strlen("button")) == 0) {
// Map to x11 mouse buttons
int number = name[strlen("button")] - '0';
if (number < 1 || number > 9 || strlen(name) > strlen("button0")) {
*error = strdup("Only buttons 1-9 are supported. For other mouse "
"buttons, use the name of the event code.");
return 0;
}
static const uint32_t buttons[] = {BTN_LEFT, BTN_MIDDLE, BTN_RIGHT,
SWAY_SCROLL_UP, SWAY_SCROLL_DOWN, SWAY_SCROLL_LEFT,
SWAY_SCROLL_RIGHT, BTN_SIDE, BTN_EXTRA};
return buttons[number - 1];
} else if (strncmp(name, "BTN_", strlen("BTN_")) == 0) {
// Get event code from name
int code = libevdev_event_code_from_name(EV_KEY, name);
if (code == -1) {
size_t len = snprintf(NULL, 0, "Unknown event %s", name) + 1;
*error = malloc(len);
if (*error) {
snprintf(*error, len, "Unknown event %s", name);
}
return 0;
}
return code;
}
return 0;
}
uint32_t get_mouse_bindcode(const char *name, char **error) {
// Validate event code
errno = 0;
char *endptr;
int code = strtol(name, &endptr, 10);
if (endptr == name && code <= 0) {
*error = strdup("Button event code must be a positive integer.");
return 0;
} else if (errno == ERANGE) {
*error = strdup("Button event code out of range.");
return 0;
}
const char *event = libevdev_event_code_get_name(EV_KEY, code);
if (!event || strncmp(event, "BTN_", strlen("BTN_")) != 0) {
size_t len = snprintf(NULL, 0, "Event code %d (%s) is not a button",
code, event) + 1;
*error = malloc(len);
if (*error) {
snprintf(*error, len, "Event code %d (%s) is not a button",
code, event);
}
return 0;
}
return code;
}
uint32_t get_mouse_button(const char *name, char **error) {
uint32_t button = get_mouse_bindsym(name, error);
if (!button && !error) {
button = get_mouse_bindcode(name, error);
}
return button;
}

8
sway/ipc-server.c
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@ -445,8 +445,12 @@ void ipc_event_binding(struct sway_binding *binding) {
json_object_object_add(json_binding, "input_code", json_object_new_int(input_code));
json_object_object_add(json_binding, "symbols", symbols);
json_object_object_add(json_binding, "symbol", symbol);
json_object_object_add(json_binding, "input_type", binding->type == BINDING_MOUSE ?
json_object_new_string("mouse") : json_object_new_string("keyboard"));
bool mouse = binding->type == BINDING_MOUSECODE ||
binding->type == BINDING_MOUSESYM;
json_object_object_add(json_binding, "input_type", mouse
? json_object_new_string("mouse")
: json_object_new_string("keyboard"));
json_object *json = json_object_new_object();
json_object_object_add(json, "change", json_object_new_string("run"));

2
sway/sway.5.scd
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@ -302,7 +302,7 @@ runtime.
```
*bindcode* [--release|--locked] [--input-device=<device>] [--no-warn] <code> <command>
is also available for binding with key codes instead of key names.
is also available for binding with key/button codes instead of key/button names.
*client.<class>* <border> <background> <text> <indicator> <child\_border>
Configures the color of window borders and title bars. All 5 colors are

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