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#pragma once
/*
* gsr-x11-window-picker.h — Interactive X11 window picker.
*
* Grabs the pointer with a crosshair cursor, waits for a click,
* walks the X11 window tree to find the real toplevel, and reports
* the result via callback.
*
* Uses its own X11 display connection + GLib GSource to avoid
* interfering with GDK's event loop.
*
* X11 only — do NOT use on Wayland.
*/
#include <stdbool.h>
#include <X11/Xlib.h>
typedef struct _GsrX11WindowPicker GsrX11WindowPicker;
/**
* Result of a window pick. If window == None, the pick was cancelled
* (Escape pressed or no valid window found).
*/
typedef struct {
Window window; /* X11 window ID, or None on cancel */
char *name; /* Window name (heap-allocated), or NULL on cancel.
Caller must g_free() / free(). */
} GsrX11WindowPickResult;
/**
* Callback fired when the user has clicked a window or cancelled.
* Called from the GLib main loop context.
*/
typedef void (*GsrX11WindowPickCallback)(const GsrX11WindowPickResult *result,
void *userdata);
/**
* Create a window picker. Returns NULL on failure (e.g. cannot open
* X display or grab pointer).
*
* The picker grabs the pointer immediately. When the user clicks or
* presses Escape, @callback is invoked and the picker is automatically
* destroyed (do NOT call _free after the callback fires).
*
* @callback: result callback
* @userdata: passed to callback
*/
GsrX11WindowPicker *gsr_x11_window_picker_new(GsrX11WindowPickCallback callback,
void *userdata);
/**
* Cancel and destroy an in-progress pick.
* Safe to call if picker is NULL.
*/
void gsr_x11_window_picker_free(GsrX11WindowPicker *self);
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