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neko-custom/server/internal/hid/hid.c

113 lines
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C
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#include "hid.h"
static clipboard_c *CLIPBOARD = NULL;
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static Display *DISPLAY = NULL;
static char *NAME = ":0.0";
static int REGISTERED = 0;
static int DIRTY = 0;
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Display *getXDisplay(void) {
/* Close the display if displayName has changed */
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if (DIRTY) {
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closeXDisplay();
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DIRTY = 0;
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}
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if (DISPLAY == NULL) {
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/* First try the user set displayName */
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DISPLAY = XOpenDisplay(NAME);
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/* Then try using environment variable DISPLAY */
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if (DISPLAY == NULL) {
DISPLAY = XOpenDisplay(NULL);
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}
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if (DISPLAY == NULL) {
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fputs("Could not open main display\n", stderr);
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} else if (!REGISTERED) {
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atexit(&closeXDisplay);
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REGISTERED = 1;
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}
}
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return DISPLAY;
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}
clipboard_c *getClipboard(void) {
if (CLIPBOARD == NULL) {
CLIPBOARD = clipboard_new(NULL);
}
return CLIPBOARD;
}
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void closeXDisplay(void) {
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if (DISPLAY != NULL) {
XCloseDisplay(DISPLAY);
DISPLAY = NULL;
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}
}
void setXDisplay(char *input) {
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NAME = strdup(input);
DIRTY = 1;
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}
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void XMove(int x, int y) {
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Display *display = getXDisplay();
XWarpPointer(display, None, DefaultRootWindow(display), 0, 0, 0, 0, x, y);
XSync(display, 0);
}
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void XScroll(int x, int y) {
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int ydir = 4; /* Button 4 is up, 5 is down. */
int xdir = 6;
Display *display = getXDisplay();
if (y < 0) {
ydir = 5;
}
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if (x < 0) {
xdir = 7;
}
int xi;
int yi;
for (xi = 0; xi < abs(x); xi++) {
XTestFakeButtonEvent(display, xdir, 1, CurrentTime);
XTestFakeButtonEvent(display, xdir, 0, CurrentTime);
}
for (yi = 0; yi < abs(y); yi++) {
XTestFakeButtonEvent(display, ydir, 1, CurrentTime);
XTestFakeButtonEvent(display, ydir, 0, CurrentTime);
}
XSync(display, 0);
}
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void XButton(unsigned int button, int down) {
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Display *display = getXDisplay();
XTestFakeButtonEvent(display, button, down, CurrentTime);
XSync(display, 0);
}
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void XKey(unsigned long key, int down) {
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Display *display = getXDisplay();
KeyCode code = XKeysymToKeycode(display, key);
XTestFakeKeyEvent(display, code, down, CurrentTime);
XSync(display, 0);
}
void XClipboardSet(char *src) {
clipboard_c *cb = getClipboard();
clipboard_set_text_ex(cb, src, strlen(src), 0);
}
char *XClipboardGet() {
clipboard_c *cb = getClipboard();
return clipboard_text_ex(cb, NULL, 0);
}