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Set clipboard from the main thread 

The clipboard changes from the device are received from a separate
thread, but they must be handled from the main thread.

PR #5270 <https://github.com/Genymobile/scrcpy/pull/5270>
This commit is contained in:
Romain Vimont 2024-09-06 23:08:08 +02:00
parent 8620d06741
commit 72ee195693
1 changed files with 33 additions and 8 deletions
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41
app/src/receiver.c
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@ -6,8 +6,10 @@
#include <SDL2/SDL_clipboard.h>
#include "device_msg.h"
#include "events.h"
#include "util/log.h"
#include "util/str.h"
#include "util/thread.h"
bool
sc_receiver_init(struct sc_receiver *receiver, sc_socket control_socket,
@ -33,20 +35,39 @@ sc_receiver_destroy(struct sc_receiver *receiver) {
sc_mutex_destroy(&receiver->mutex);
}
static void
task_set_clipboard(void *userdata) {
assert(sc_thread_get_id() == SC_MAIN_THREAD_ID);
char *text = userdata;
char *current = SDL_GetClipboardText();
bool same = current && !strcmp(current, text);
SDL_free(current);
if (same) {
LOGD("Computer clipboard unchanged");
} else {
LOGI("Device clipboard copied");
SDL_SetClipboardText(text);
}
free(text);
}
static void
process_msg(struct sc_receiver *receiver, struct sc_device_msg *msg) {
switch (msg->type) {
case DEVICE_MSG_TYPE_CLIPBOARD: {
char *current = SDL_GetClipboardText();
bool same = current && !strcmp(current, msg->clipboard.text);
SDL_free(current);
if (same) {
LOGD("Computer clipboard unchanged");
// Take ownership of the text (do not destroy the msg)
char *text = msg->clipboard.text;
bool ok = sc_post_to_main_thread(task_set_clipboard, text);
if (!ok) {
LOGW("Could not post clipboard to main thread");
free(text);
return;
}
LOGI("Device clipboard copied");
SDL_SetClipboardText(msg->clipboard.text);
break;
}
case DEVICE_MSG_TYPE_ACK_CLIPBOARD:
@ -64,6 +85,7 @@ process_msg(struct sc_receiver *receiver, struct sc_device_msg *msg) {
}
sc_acksync_ack(receiver->acksync, msg->ack_clipboard.sequence);
// No allocation to free in the msg
break;
case DEVICE_MSG_TYPE_UHID_OUTPUT:
if (sc_get_log_level() <= SC_LOG_LEVEL_VERBOSE) {
@ -86,6 +108,7 @@ process_msg(struct sc_receiver *receiver, struct sc_device_msg *msg) {
// Also check at runtime (do not trust the server)
if (!receiver->uhid_devices) {
LOGE("Received unexpected HID output message");
sc_device_msg_destroy(msg);
return;
}
@ -99,6 +122,8 @@ process_msg(struct sc_receiver *receiver, struct sc_device_msg *msg) {
} else {
LOGW("No UHID receiver for id %" PRIu16, msg->uhid_output.id);
}
sc_device_msg_destroy(msg);
break;
}
}
@ -117,7 +142,7 @@ process_msgs(struct sc_receiver *receiver, const uint8_t *buf, size_t len) {
}
process_msg(receiver, &msg);
sc_device_msg_destroy(&msg);
// the device msg must be destroyed by process_msg()
head += r;
assert(head <= len);