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More work on DnD protocol

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This commit is contained in:
Kovid Goyal 2026-04-03 19:58:59 +05:30
parent 6cc9bd69c0
commit 0619c7e435
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GPG key ID: 06BC317B515ACE7C
4 changed files with 25 additions and 2 deletions
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20
kitty/dnd.c
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@ -867,6 +867,7 @@ drag_free_offer(Window *w) {
free(ds.items);
}
ds.num_mimes = 0;
ds.pre_sent_total_sz = 0;
}
void
@ -901,8 +902,25 @@ drag_add_mimes(Window *w, int allowed_operations, const char *data, size_t sz, b
p += strlen(p) + 1;
} else p++;
}
ds.pre_sent_total_sz = 0;
}
#undef abrt
}
void
drag_add_pre_sent_data(Window *w, unsigned idx, const uint8_t *payload, size_t sz) {
if (!ds.offer_being_built || idx >= ds.num_mimes) abrt(EINVAL);
if (sz + ds.pre_sent_total_sz > 64 * 1024 * 1024) abrt(EFBIG);
ds.pre_sent_total_sz += sz;
DragSourceItem *item = ds.items + idx;
if (item->data_capacity < sz + item->data_size) {
size_t newcap = MAX(item->data_size * 2, sz + item->data_size);
item->optional_data = realloc(item->optional_data, newcap);
if (!item->optional_data) abrt(ENOMEM);
item->data_capacity = newcap;
}
memcpy(item->optional_data + item->data_size, payload, sz);
item->data_size += sz;
}
#undef abrt
#undef ds

1
kitty/dnd.h
View file

@ -25,3 +25,4 @@ void dnd_set_test_write_func(PyObject *func);
void drag_free_offer(Window *w);
void drag_add_mimes(Window *w, int allowed_operations, const char *data, size_t sz, bool has_more);
void drag_add_pre_sent_data(Window *w, unsigned idx, const uint8_t *payload, size_t sz);

3
kitty/screen.c
View file

@ -1548,6 +1548,9 @@ screen_handle_dnd_command(Screen *self, const DnDCommand *cmd, const uint8_t *pa
cancel_current_drag_source();
}
} break;
case 'p': {
if (cmd->cell_x >= 0) drag_add_pre_sent_data(w, cmd->cell_x, payload, cmd->payload_sz);
} break;
}
}

3
kitty/state.h
View file

@ -236,7 +236,7 @@ typedef struct DirHandle {
typedef struct DragSourceItem {
const char *mime_type;
char *optional_data;
size_t data_size;
size_t data_size, data_capacity;
} DragSourceItem;
typedef struct Window {
@ -296,6 +296,7 @@ typedef struct Window {
struct { double x, y; monotonic_t at; } initial_left_press;
char *mimes_buf; size_t num_mimes, bufsz;
DragSourceItem *items;
size_t pre_sent_total_sz;
int allowed_operations;
bool offer_being_built;
} drag_source;