bf5e54b2e9
control_event_serialize() returns the number of bytes written, so the type should be size_t.
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
#ifndef CONTROLEVENT_H
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#define CONTROLEVENT_H
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "android/input.h"
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#include "android/keycodes.h"
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#include "common.h"
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#define CONTROL_EVENT_QUEUE_SIZE 64
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#define CONTROL_EVENT_TEXT_MAX_LENGTH 300
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#define CONTROL_EVENT_SERIALIZED_MAX_SIZE (3 + CONTROL_EVENT_TEXT_MAX_LENGTH)
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enum control_event_type {
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CONTROL_EVENT_TYPE_KEYCODE,
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CONTROL_EVENT_TYPE_TEXT,
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CONTROL_EVENT_TYPE_MOUSE,
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CONTROL_EVENT_TYPE_SCROLL,
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CONTROL_EVENT_TYPE_COMMAND,
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};
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enum control_event_command {
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CONTROL_EVENT_COMMAND_BACK_OR_SCREEN_ON,
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CONTROL_EVENT_COMMAND_EXPAND_NOTIFICATION_PANEL,
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CONTROL_EVENT_COMMAND_COLLAPSE_NOTIFICATION_PANEL,
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};
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struct control_event {
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enum control_event_type type;
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union {
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struct {
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enum android_keyevent_action action;
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enum android_keycode keycode;
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enum android_metastate metastate;
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} keycode_event;
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struct {
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char *text; // owned, to be freed by SDL_free()
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} text_event;
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struct {
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enum android_motionevent_action action;
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enum android_motionevent_buttons buttons;
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struct position position;
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} mouse_event;
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struct {
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struct position position;
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int32_t hscroll;
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int32_t vscroll;
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} scroll_event;
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struct {
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enum control_event_command action;
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} command_event;
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};
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};
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struct control_event_queue {
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struct control_event data[CONTROL_EVENT_QUEUE_SIZE];
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int head;
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int tail;
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};
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// buf size must be at least CONTROL_EVENT_SERIALIZED_MAX_SIZE
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// return the number of bytes written
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size_t
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control_event_serialize(const struct control_event *event, unsigned char *buf);
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bool
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control_event_queue_init(struct control_event_queue *queue);
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void
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control_event_queue_destroy(struct control_event_queue *queue);
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bool
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control_event_queue_is_empty(const struct control_event_queue *queue);
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bool
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control_event_queue_is_full(const struct control_event_queue *queue);
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// the event is "moved": the queue takes ownership of its fields
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bool
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control_event_queue_push(struct control_event_queue *queue,
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const struct control_event *event);
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bool
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control_event_queue_take(struct control_event_queue *queue,
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struct control_event *event);
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void
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control_event_destroy(struct control_event *event);
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#endif
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