diff options
| -rw-r--r-- | platform/linuxbsd/display_server_x11.cpp | 129 | ||||
| -rw-r--r-- | platform/linuxbsd/display_server_x11.h | 1 |
2 files changed, 105 insertions, 25 deletions
diff --git a/platform/linuxbsd/display_server_x11.cpp b/platform/linuxbsd/display_server_x11.cpp index 74c69c0823..356668a375 100644 --- a/platform/linuxbsd/display_server_x11.cpp +++ b/platform/linuxbsd/display_server_x11.cpp @@ -465,59 +465,138 @@ Bool DisplayServerX11::_predicate_clipboard_selection(Display *display, XEvent * } } +Bool DisplayServerX11::_predicate_clipboard_incr(Display *display, XEvent *event, XPointer arg) { + if (event->type == PropertyNotify && event->xproperty.state == PropertyNewValue) { + return True; + } else { + return False; + } +} + String DisplayServerX11::_clipboard_get_impl(Atom p_source, Window x11_window, Atom target) const { String ret; - Atom type; - Atom selection = XA_PRIMARY; - int format, result; - unsigned long len, bytes_left, dummy; - unsigned char *data; Window selection_owner = XGetSelectionOwner(x11_display, p_source); - if (selection_owner == x11_window) { return internal_clipboard; } if (selection_owner != None) { - { - // Block events polling while processing selection events. - MutexLock mutex_lock(events_mutex); + // Block events polling while processing selection events. + MutexLock mutex_lock(events_mutex); - XConvertSelection(x11_display, p_source, target, selection, - x11_window, CurrentTime); + Atom selection = XA_PRIMARY; + XConvertSelection(x11_display, p_source, target, selection, + x11_window, CurrentTime); - XFlush(x11_display); + XFlush(x11_display); - // Blocking wait for predicate to be True - // and remove the event from the queue. - XEvent event; - XIfEvent(x11_display, &event, _predicate_clipboard_selection, (XPointer)&x11_window); - } + // Blocking wait for predicate to be True and remove the event from the queue. + XEvent event; + XIfEvent(x11_display, &event, _predicate_clipboard_selection, (XPointer)&x11_window); - // - // Do not get any data, see how much data is there - // + // Do not get any data, see how much data is there. + Atom type; + int format, result; + unsigned long len, bytes_left, dummy; + unsigned char *data; XGetWindowProperty(x11_display, x11_window, selection, // Tricky.. 0, 0, // offset - len 0, // Delete 0==FALSE - AnyPropertyType, //flag + AnyPropertyType, // flag &type, // return type &format, // return format - &len, &bytes_left, //that + &len, &bytes_left, // data length &data); - // DATA is There - if (bytes_left > 0) { + + if (data) { + XFree(data); + } + + if (type == XInternAtom(x11_display, "INCR", 0)) { + // Data is going to be received incrementally. + DEBUG_LOG_X11("INCR selection started.\n"); + + LocalVector<uint8_t> incr_data; + uint32_t data_size = 0; + bool success = false; + + // Delete INCR property to notify the owner. + XDeleteProperty(x11_display, x11_window, type); + + // Process events from the queue. + bool done = false; + while (!done) { + if (!_wait_for_events()) { + // Error or timeout, abort. + break; + } + + // Non-blocking wait for next event and remove it from the queue. + XEvent ev; + while (XCheckIfEvent(x11_display, &ev, _predicate_clipboard_incr, nullptr)) { + result = XGetWindowProperty(x11_display, x11_window, + selection, // selection type + 0, LONG_MAX, // offset - len + True, // delete property to notify the owner + AnyPropertyType, // flag + &type, // return type + &format, // return format + &len, &bytes_left, // data length + &data); + + DEBUG_LOG_X11("PropertyNotify: len=%lu, format=%i\n", len, format); + + if (result == Success) { + if (data && (len > 0)) { + uint32_t prev_size = incr_data.size(); + if (prev_size == 0) { + // First property contains initial data size. + unsigned long initial_size = *(unsigned long *)data; + incr_data.resize(initial_size); + } else { + // New chunk, resize to be safe and append data. + incr_data.resize(MAX(data_size + len, prev_size)); + memcpy(incr_data.ptr() + data_size, data, len); + data_size += len; + } + } else { + // Last chunk, process finished. + done = true; + success = true; + } + } else { + printf("Failed to get selection data chunk.\n"); + done = true; + } + + if (data) { + XFree(data); + } + + if (done) { + break; + } + } + } + + if (success && (data_size > 0)) { + ret.parse_utf8((const char *)incr_data.ptr(), data_size); + } + } else if (bytes_left > 0) { + // Data is ready and can be processed all at once. result = XGetWindowProperty(x11_display, x11_window, selection, 0, bytes_left, 0, AnyPropertyType, &type, &format, &len, &dummy, &data); + if (result == Success) { ret.parse_utf8((const char *)data); } else { - printf("FAIL\n"); + printf("Failed to get selection data.\n"); } + if (data) { XFree(data); } diff --git a/platform/linuxbsd/display_server_x11.h b/platform/linuxbsd/display_server_x11.h index 682f1c8ef3..61fb04cbf3 100644 --- a/platform/linuxbsd/display_server_x11.h +++ b/platform/linuxbsd/display_server_x11.h @@ -270,6 +270,7 @@ class DisplayServerX11 : public DisplayServer { static Bool _predicate_all_events(Display *display, XEvent *event, XPointer arg); static Bool _predicate_clipboard_selection(Display *display, XEvent *event, XPointer arg); + static Bool _predicate_clipboard_incr(Display *display, XEvent *event, XPointer arg); static Bool _predicate_clipboard_save_targets(Display *display, XEvent *event, XPointer arg); protected: |