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linux copy/paste

This commit is contained in:
Alex Baines 2020-02-08 17:46:21 +00:00
parent 61ddb8a9d1
commit 1f078aa96c
2 changed files with 202 additions and 48 deletions
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244
platform_linux/linux_4ed.cpp
View File

@ -158,6 +158,7 @@ struct Linux_Vars {
int step_timer_fd;
u64 last_step_time;
XCursor xcursors[APP_MOUSE_CURSOR_COUNT];
Application_Mouse_Cursor cursor;
XCursor hidden_cursor;
i32 cursor_show;
@ -168,7 +169,9 @@ struct Linux_Vars {
System_Mutex global_frame_mutex;
Arena clipboard_out_arena;
Arena* clipboard_out_arena;
Arena* clipboard_arena;
String_Const_u8 clipboard_out_contents;
String_Const_u8 clipboard_contents;
b32 received_new_clipboard;
@ -892,6 +895,11 @@ linux_x11_init(int argc, char** argv, Plat_Settings* settings) {
int xfixes_version_unused, xfixes_err_unused;
Bool has_xfixes = XQueryExtension(linuxvars.dpy, "XFIXES", &xfixes_version_unused, &linuxvars.xfixes_selection_event, &xfixes_err_unused);
linuxvars.has_xfixes = (has_xfixes == True);
// request notifications for CLIPBOARD updates.
if(has_xfixes) {
XFixesSelectSelectionInput(linuxvars.dpy, linuxvars.win, linuxvars.atom_CLIPBOARD, XFixesSetSelectionOwnerNotifyMask);
}
}
// Input handling init
@ -967,6 +975,26 @@ linux_x11_init(int argc, char** argv, Plat_Settings* settings) {
| xim_event_mask;
XSelectInput(linuxvars.dpy, linuxvars.win, event_mask);
XCursor cursors[APP_MOUSE_CURSOR_COUNT] = {
None,
None,
XCreateFontCursor(linuxvars.dpy, XC_xterm),
XCreateFontCursor(linuxvars.dpy, XC_sb_h_double_arrow),
XCreateFontCursor(linuxvars.dpy, XC_sb_v_double_arrow)
};
block_copy(linuxvars.xcursors, cursors, sizeof(cursors));
// sneaky invisible cursor
{
char data = 0;
XColor c = {};
Pixmap p = XCreateBitmapFromData(linuxvars.dpy, linuxvars.win, &data, 1, 1);
linuxvars.hidden_cursor = XCreatePixmapCursor(linuxvars.dpy, p, p, &c, &c, 0, 0);
XFreePixmap(linuxvars.dpy, p);
}
}
global Key_Code keycode_lookup_table[255];
@ -1059,10 +1087,130 @@ linux_keycode_init(Display* dpy){
XFree(syms);
}
internal void
linux_epoll_init(void) {
struct epoll_event e = {};
e.events = EPOLLIN | EPOLLET;
//linuxvars.inotify_fd = inotify_init1(IN_NONBLOCK);
linuxvars.step_event_fd = eventfd(0, EFD_NONBLOCK);
linuxvars.step_timer_fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK);
linuxvars.epoll = epoll_create(16);
e.data.ptr = &epoll_tag_x11;
epoll_ctl(linuxvars.epoll, EPOLL_CTL_ADD, ConnectionNumber(linuxvars.dpy), &e);
e.data.ptr = &epoll_tag_step_event;
epoll_ctl(linuxvars.epoll, EPOLL_CTL_ADD, linuxvars.step_event_fd, &e);
e.data.ptr = &epoll_tag_step_timer;
epoll_ctl(linuxvars.epoll, EPOLL_CTL_ADD, linuxvars.step_timer_fd, &e);
}
internal void
linux_clipboard_send(XSelectionRequestEvent* req) {
XSelectionEvent rsp = {};
rsp.type = SelectionNotify;
rsp.requestor = req->requestor;
rsp.selection = req->selection;
rsp.target = req->target;
rsp.time = req->time;
rsp.property = None;
Atom formats[] = {
linuxvars.atom_UTF8_STRING,
XA_STRING,
};
if(linuxvars.clipboard_out_contents.size == 0) {
goto done;
}
if(req->selection != linuxvars.atom_CLIPBOARD || req->property == None) {
goto done;
}
if (req->target == linuxvars.atom_TARGETS){
XChangeProperty(
req->display,
req->requestor,
req->property,
XA_ATOM,
32,
PropModeReplace,
(u8*)formats,
ArrayCount(formats));
rsp.property = req->property;
} else {
int i;
for(i = 0; i < ArrayCount(formats); ++i){
if (req->target == formats[i]){
break;
}
}
if (i != ArrayCount(formats)){
XChangeProperty(
req->display,
req->requestor,
req->property,
req->target,
8,
PropModeReplace,
linuxvars.clipboard_out_contents.str,
linuxvars.clipboard_out_contents.size
);
rsp.property = req->property;
}
}
done:
XSendEvent(req->display, req->requestor, True, 0, (XEvent*)&rsp);
}
internal void
linux_clipboard_recv(XSelectionEvent* ev) {
if(ev->selection != linuxvars.atom_CLIPBOARD ||
ev->target != linuxvars.atom_UTF8_STRING ||
ev->property == None) {
return;
}
Atom type;
int fmt;
unsigned long nitems;
unsigned long bytes_left;
u8 *data;
int result = XGetWindowProperty(
linuxvars.dpy,
linuxvars.win,
linuxvars.atom_CLIPBOARD,
0L, 0x20000000L, False,
linuxvars.atom_UTF8_STRING,
&type, &fmt, &nitems,
&bytes_left, &data);
if(result == Success && fmt == 8){
linalloc_clear(linuxvars.clipboard_arena);
linuxvars.clipboard_contents = push_u8_stringf(linuxvars.clipboard_arena, "%.*s", nitems, data);
linuxvars.received_new_clipboard = true;
XFree(data);
XDeleteProperty(linuxvars.dpy, linuxvars.win, linuxvars.atom_CLIPBOARD);
linux_schedule_step();
}
}
internal String_Const_u8
linux_filter_text(Arena* arena, u8* buf, int len) {
u8* const result = push_array(arena, u8, len);
u8* const endp = buf + len;
u8* outp = result;
for(int i = 0; i < len; ++i) {
@ -1204,6 +1352,14 @@ linux_handle_x11_events() {
}
} break;
case FocusIn: {
XSetICFocus(linuxvars.xic);
} break;
case FocusOut: {
XUnsetICFocus(linuxvars.xic);
} break;
case ConfigureNotify: {
i32 w = event.xconfigure.width;
i32 h = event.xconfigure.height;
@ -1235,6 +1391,43 @@ linux_handle_x11_events() {
&event);
}
} break;
case SelectionRequest: {
linux_clipboard_send((XSelectionRequestEvent*)&event);
} break;
case SelectionNotify: {
linux_clipboard_recv((XSelectionEvent*)&event);
} break;
case SelectionClear: {
if(event.xselectionclear.selection == linuxvars.atom_CLIPBOARD) {
linalloc_clear(linuxvars.clipboard_out_arena);
block_zero_struct(&linuxvars.clipboard_out_contents);
}
} break;
case Expose:
case VisibilityNotify: {
should_step = true;
} break;
default: {
// clipboard update notification - ask for the new content
if (event.type == linuxvars.xfixes_selection_event) {
XFixesSelectionNotifyEvent* sne = (XFixesSelectionNotifyEvent*)&event;
if (sne->subtype == XFixesSelectionNotify && sne->owner != linuxvars.win){
XConvertSelection(
linuxvars.dpy,
linuxvars.atom_CLIPBOARD,
linuxvars.atom_UTF8_STRING,
linuxvars.atom_CLIPBOARD,
linuxvars.win,
CurrentTime);
}
}
} break;
}
}
@ -1314,7 +1507,8 @@ main(int argc, char **argv){
// NOTE(allen): memory
linuxvars.frame_arena = reserve_arena(&linuxvars.tctx);
// TODO(allen): *arena;
linuxvars.clipboard_arena = reserve_arena(&linuxvars.tctx);
linuxvars.clipboard_out_arena = reserve_arena(&linuxvars.tctx);
render_target.arena = make_arena_system(KB(256));
linuxvars.fontconfig = FcInitLoadConfigAndFonts();
@ -1440,46 +1634,7 @@ main(int argc, char **argv){
linux_x11_init(argc, argv, &plat_settings);
linux_keycode_init(linuxvars.dpy);
// TODO(inso): move to x11 init?
XCursor xcursors[APP_MOUSE_CURSOR_COUNT] = {
None,
None,
XCreateFontCursor(linuxvars.dpy, XC_xterm),
XCreateFontCursor(linuxvars.dpy, XC_sb_h_double_arrow),
XCreateFontCursor(linuxvars.dpy, XC_sb_v_double_arrow)
};
// sneaky invisible cursor
{
char data = 0;
XColor c = {};
Pixmap p = XCreateBitmapFromData(linuxvars.dpy, linuxvars.win, &data, 1, 1);
linuxvars.hidden_cursor = XCreatePixmapCursor(linuxvars.dpy, p, p, &c, &c, 0, 0);
XFreePixmap(linuxvars.dpy, p);
}
// epoll init
{
struct epoll_event e = {};
e.events = EPOLLIN | EPOLLET;
//linuxvars.inotify_fd = inotify_init1(IN_NONBLOCK);
linuxvars.step_event_fd = eventfd(0, EFD_NONBLOCK);
linuxvars.step_timer_fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK);
linuxvars.epoll = epoll_create(16);
e.data.ptr = &epoll_tag_x11;
epoll_ctl(linuxvars.epoll, EPOLL_CTL_ADD, ConnectionNumber(linuxvars.dpy), &e);
e.data.ptr = &epoll_tag_step_event;
epoll_ctl(linuxvars.epoll, EPOLL_CTL_ADD, linuxvars.step_event_fd, &e);
e.data.ptr = &epoll_tag_step_timer;
epoll_ctl(linuxvars.epoll, EPOLL_CTL_ADD, linuxvars.step_timer_fd, &e);
}
linux_epoll_init();
// app init
{
@ -1533,6 +1688,7 @@ main(int argc, char **argv){
if (linuxvars.received_new_clipboard){
input.clipboard = linuxvars.clipboard_contents;
input.clipboard_changed = true;
linuxvars.received_new_clipboard = false;
}
@ -1569,7 +1725,7 @@ main(int argc, char **argv){
// NOTE(allen): Switch to New Cursor
if (result.mouse_cursor_type != linuxvars.cursor && !linuxvars.input.pers.mouse_l){
XCursor c = xcursors[result.mouse_cursor_type];
XCursor c = linuxvars.xcursors[result.mouse_cursor_type];
if (linuxvars.cursor_show){
XDefineCursor(linuxvars.dpy, linuxvars.win, c);
}

6
platform_linux/linux_4ed_functions.cpp
View File

@ -326,10 +326,8 @@ system_sleep(u64 microseconds){
internal void
system_post_clipboard(String_Const_u8 str){
LINUX_FN_DEBUG("%.*s", (int)str.size, str.str);
linalloc_clear(&linuxvars.clipboard_out_arena);
char* p = push_array(&linuxvars.clipboard_out_arena, char, str.size + 1);
block_copy(p, str.data, str.size);
p[str.size] = '\0';
linalloc_clear(linuxvars.clipboard_out_arena);
linuxvars.clipboard_out_contents = push_u8_stringf(linuxvars.clipboard_out_arena, "%.*s", str.size, str.str);
XSetSelectionOwner(linuxvars.dpy, linuxvars.atom_CLIPBOARD, linuxvars.win, CurrentTime);
}