1 #define _POSIX_C_SOURCE 200809L
2 #include <linux/input-event-codes.h>
3 
4 #include <strings.h>
5 #include <wlr/types/wlr_cursor.h>
6 #include <wlr/types/wlr_pointer.h>
7 #include "sway/commands.h"
8 #include "sway/input/cursor.h"
9 
10 static struct cmd_results *press_or_release(struct sway_cursor *cursor,
11 		char *action, char *button_str);
12 
13 static const char expected_syntax[] = "Expected 'cursor <move> <x> <y>' or "
14 					"'cursor <set> <x> <y>' or "
15 					"'cursor <press|release> <button[1-9]|event-name-or-code>'";
16 
handle_command(struct sway_cursor * cursor,int argc,char ** argv)17 static struct cmd_results *handle_command(struct sway_cursor *cursor,
18 		int argc, char **argv) {
19 	if (strcasecmp(argv[0], "move") == 0) {
20 		if (argc < 3) {
21 			return cmd_results_new(CMD_INVALID, expected_syntax);
22 		}
23 		int delta_x = strtol(argv[1], NULL, 10);
24 		int delta_y = strtol(argv[2], NULL, 10);
25 		wlr_cursor_move(cursor->cursor, NULL, delta_x, delta_y);
26 		cursor_rebase(cursor);
27 		wlr_seat_pointer_notify_frame(cursor->seat->wlr_seat);
28 	} else if (strcasecmp(argv[0], "set") == 0) {
29 		if (argc < 3) {
30 			return cmd_results_new(CMD_INVALID, expected_syntax);
31 		}
32 		// map absolute coords (0..1,0..1) to root container coords
33 		float x = strtof(argv[1], NULL) / root->width;
34 		float y = strtof(argv[2], NULL) / root->height;
35 		wlr_cursor_warp_absolute(cursor->cursor, NULL, x, y);
36 		cursor_rebase(cursor);
37 		wlr_seat_pointer_notify_frame(cursor->seat->wlr_seat);
38 	} else {
39 		if (argc < 2) {
40 			return cmd_results_new(CMD_INVALID, expected_syntax);
41 		}
42 		struct cmd_results *error = NULL;
43 		if ((error = press_or_release(cursor, argv[0], argv[1]))) {
44 			return error;
45 		}
46 	}
47 
48 	return cmd_results_new(CMD_SUCCESS, NULL);
49 }
50 
seat_cmd_cursor(int argc,char ** argv)51 struct cmd_results *seat_cmd_cursor(int argc, char **argv) {
52 	struct cmd_results *error = NULL;
53 	if ((error = checkarg(argc, "cursor", EXPECTED_AT_LEAST, 2))) {
54 		return error;
55 	}
56 	struct seat_config *sc = config->handler_context.seat_config;
57 	if (!sc) {
58 		return cmd_results_new(CMD_FAILURE, "No seat defined");
59 	}
60 
61 	if (config->reading || !config->active) {
62 		return cmd_results_new(CMD_DEFER, NULL);
63 	}
64 
65 	if (strcmp(sc->name, "*") != 0) {
66 		struct sway_seat *seat = input_manager_get_seat(sc->name, false);
67 		if (!seat) {
68 			return cmd_results_new(CMD_FAILURE,
69 					"Seat %s does not exist", sc->name);
70 		}
71 		error = handle_command(seat->cursor, argc, argv);
72 	} else {
73 		struct sway_seat *seat = NULL;
74 		wl_list_for_each(seat, &server.input->seats, link) {
75 			error = handle_command(seat->cursor, argc, argv);
76 			if (error && error->status != CMD_SUCCESS) {
77 				break;
78 			}
79 		}
80 	}
81 
82 	return error ? error : cmd_results_new(CMD_SUCCESS, NULL);
83 }
84 
press_or_release(struct sway_cursor * cursor,char * action,char * button_str)85 static struct cmd_results *press_or_release(struct sway_cursor *cursor,
86 		char *action, char *button_str) {
87 	enum wlr_button_state state;
88 	uint32_t button;
89 	if (strcasecmp(action, "press") == 0) {
90 		state = WLR_BUTTON_PRESSED;
91 	} else if (strcasecmp(action, "release") == 0) {
92 		state = WLR_BUTTON_RELEASED;
93 	} else {
94 		return cmd_results_new(CMD_INVALID, expected_syntax);
95 	}
96 
97 	char *message = NULL;
98 	button = get_mouse_button(button_str, &message);
99 	if (message) {
100 		struct cmd_results *error =
101 			cmd_results_new(CMD_INVALID, message);
102 		free(message);
103 		return error;
104 	} else if (button == SWAY_SCROLL_UP || button == SWAY_SCROLL_DOWN
105 			|| button == SWAY_SCROLL_LEFT || button == SWAY_SCROLL_RIGHT) {
106 		// Dispatch axis event
107 		enum wlr_axis_orientation orientation =
108 			(button == SWAY_SCROLL_UP || button == SWAY_SCROLL_DOWN)
109 			? WLR_AXIS_ORIENTATION_VERTICAL
110 			: WLR_AXIS_ORIENTATION_HORIZONTAL;
111 		double delta = (button == SWAY_SCROLL_UP || button == SWAY_SCROLL_LEFT)
112 			? -1 : 1;
113 		struct wlr_event_pointer_axis event = {
114 			.device = NULL,
115 			.time_msec = 0,
116 			.source = WLR_AXIS_SOURCE_WHEEL,
117 			.orientation = orientation,
118 			.delta = delta * 15,
119 			.delta_discrete = delta
120 		};
121 		dispatch_cursor_axis(cursor, &event);
122 		wlr_seat_pointer_notify_frame(cursor->seat->wlr_seat);
123 		return cmd_results_new(CMD_SUCCESS, NULL);
124 	} else if (!button) {
125 		return cmd_results_new(CMD_INVALID, "Unknown button %s", button_str);
126 	}
127 	dispatch_cursor_button(cursor, NULL, 0, button, state);
128 	wlr_seat_pointer_notify_frame(cursor->seat->wlr_seat);
129 	return cmd_results_new(CMD_SUCCESS, NULL);
130 }
131