Created program logic.
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106
src/main.c
106
src/main.c
@ -16,16 +16,120 @@
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <signal.h>
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#include <stdio.h>
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#include <time.h>
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#include <X11/Xlib.h>
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int run;
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void *data;
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size_t data_size;
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void quit() {
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run = 0;
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}
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void send_selection(Display *display, XSelectionRequestEvent *sre, Atom utf8) {
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XSelectionEvent se;
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time_t now_tm;
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char *now;
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now_tm = time(NULL);
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now = ctime(&now_tm);
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#ifdef DEBUG
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char *an = XGetAtomName(display, sre->property);
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printf("Sending CLIPBOARD to window 0x%1x, property '%s'\n", sre->requestor, an);
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if(an)
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XFree(an);
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#endif
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XChangeProperty(display, sre->requestor, sre->property, utf8, 8, PropModeReplace, data, data_size);
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}
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int main() {
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Display *display = XOpenDisplay(NULL);
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Display *display;
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Window clip_win, root, owner;
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int screen;
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Atom selection, utf8, clip_property;
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XEvent event;
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// get current X display
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display = XOpenDisplay(NULL);
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if(!display)
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{
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fprintf(stderr, "Could not open X display.\n");
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return 1;
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}
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screen = DefaultScreen(display);
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root = RootWindow(display, screen);
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// create a dummy window for tinyclip
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clip_win = XCreateSimpleWindow(display, root, -10, -10, 1, 1, 0, 0, 0);
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XSelectInput(display, clip_win,
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SelectionClear | SelectionRequest | SelectionNotify);
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// create atoms for selections
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selection = XInternAtom(display, "CLIPBOARD", 0);
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utf8 = XInternAtom(display, "UTF8_STRING", 0);
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clip_property = XInternAtom(display, "TINYCLIP", 0);
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// check if there is currently someone using the clipboard
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owner = XGetSelectionOwner(display, selection);
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if(owner != None)
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{
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// take ownership of clipboard while copying contents
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#ifdef DEBUG
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printf("Current owner: 0x%1X\n", owner);
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#endif
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XConvertSelection(display, selection, utf8,
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clip_property, clip_win, CurrentTime);
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}
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else
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{
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XSetSelectionOwner(display, selection, clip_win, CurrentTime);
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}
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run = 1;
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signal(SIGINT, quit);
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while(run)
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{
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XNextEvent(display, &event);
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XSelectionRequestEvent *sre;
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XSelectionEvent *se;
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switch(event.type)
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{
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case SelectionClear:
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// if someone else took the clipboard, regain ownership
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#ifdef DEBUG
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printf("Lost selection.\n");
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#endif
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XConvertSelection(display, selection, utf8,
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clip_property, clip_win, CurrentTime);
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break;
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case SelectionNotify:
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se = (XSelectionEvent*)&event.xselection;
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if(se->property == None)
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fprintf(stderr, "Conversion impossible.");
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else
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{
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// TODO: handle new clipboard information
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}
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XSetSelectionOwner(display, selection, clip_win, CurrentTime);
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break;
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case SelectionRequest:
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// respond to request for clipboard
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sre = (XSelectionRequestEvent*) &event.xselectionrequest;
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#ifdef DEBUG
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printf("New selection request:\n"
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" requestor: 0x%1x\n", sre->requestor);
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#endif
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send_selection(display, sre, utf8);
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break;
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}
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}
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return 0;
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}
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