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FreeRDP/client/X11/xf_event.c

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/**
* FreeRDP: A Remote Desktop Protocol Client
* X11 Event Handling
*
* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <freerdp/locale/keyboard.h>
#include "xf_rail.h"
#include "xf_window.h"
#include "xf_cliprdr.h"
#include "xf_event.h"
#ifdef WITH_DEBUG_X11
static const char* const X11_EVENT_STRINGS[] =
{
"", "",
"KeyPress",
"KeyRelease",
"ButtonPress",
"ButtonRelease",
"MotionNotify",
"EnterNotify",
"LeaveNotify",
"FocusIn",
"FocusOut",
"KeymapNotify",
"Expose",
"GraphicsExpose",
"NoExpose",
"VisibilityNotify",
"CreateNotify",
"DestroyNotify",
"UnmapNotify",
"MapNotify",
"MapRequest",
"ReparentNotify",
"ConfigureNotify",
"ConfigureRequest",
"GravityNotify",
"ResizeRequest",
"CirculateNotify",
"CirculateRequest",
"PropertyNotify",
"SelectionClear",
"SelectionRequest",
"SelectionNotify",
"ColormapNotify",
"ClientMessage",
"MappingNotify",
"GenericEvent",
};
#endif
static boolean xf_event_Expose(xfInfo* xfi, XEvent* event, boolean app)
{
int x, y;
int w, h;
x = event->xexpose.x;
y = event->xexpose.y;
w = event->xexpose.width;
h = event->xexpose.height;
if (app != true)
{
XCopyArea(xfi->display, xfi->primary, xfi->window->handle, xfi->gc, x, y, w, h, x, y);
}
else
{
xfWindow* xfw;
rdpWindow* window;
rdpRail* rail = ((rdpContext*) xfi->context)->rail;
window = window_list_get_by_extra_id(rail->list, (void*) event->xexpose.window);
if (window != NULL)
{
xfw = (xfWindow*) window->extra;
xf_UpdateWindowArea(xfi, xfw, x, y, w, h);
}
}
return true;
}
static boolean xf_event_VisibilityNotify(xfInfo* xfi, XEvent* event, boolean app)
{
xfi->unobscured = event->xvisibility.state == VisibilityUnobscured;
return true;
}
static boolean xf_event_MotionNotify(xfInfo* xfi, XEvent* event, boolean app)
{
rdpInput* input;
int x, y;
Window childWindow;
input = xfi->instance->input;
x = event->xmotion.x;
y = event->xmotion.y;
if (xfi->mouse_motion != true)
{
if ((event->xmotion.state & (Button1Mask | Button2Mask | Button3Mask)) == 0)
return true;
}
if (app)
{
// Translate to desktop coordinates
XTranslateCoordinates(xfi->display, event->xmotion.window,
RootWindowOfScreen(xfi->screen),
x, y, &x, &y, &childWindow);
}
input->MouseEvent(input, PTR_FLAGS_MOVE, x, y);
if (xfi->fullscreen)
{
XSetInputFocus(xfi->display, xfi->window->handle, RevertToPointerRoot, CurrentTime);
}
return true;
}
static boolean xf_event_ButtonPress(xfInfo* xfi, XEvent* event, boolean app)
{
int x, y;
int flags;
Window childWindow;
boolean wheel;
boolean extended;
rdpInput* input;
input = xfi->instance->input;
x = 0;
y = 0;
flags = 0;
wheel = false;
extended = false;
switch (event->xbutton.button)
{
case 1:
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_FLAGS_DOWN | PTR_FLAGS_BUTTON1;
break;
case 2:
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_FLAGS_DOWN | PTR_FLAGS_BUTTON3;
break;
case 3:
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_FLAGS_DOWN | PTR_FLAGS_BUTTON2;
break;
case 4:
wheel = true;
flags = PTR_FLAGS_WHEEL | 0x0078;
break;
case 5:
wheel = true;
flags = PTR_FLAGS_WHEEL | PTR_FLAGS_WHEEL_NEGATIVE | 0x0088;
break;
case 6: // wheel left or back
case 8: // back
case 97: // Xming
extended = true;
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_XFLAGS_DOWN | PTR_XFLAGS_BUTTON1;
break;
case 7: // wheel right or forward
case 9: // forward
case 112: // Xming
extended = true;
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_XFLAGS_DOWN | PTR_XFLAGS_BUTTON2;
break;
default:
x = 0;
y = 0;
flags = 0;
break;
}
if (flags != 0)
{
if (wheel)
{
input->MouseEvent(input, flags, 0, 0);
}
else
{
if (app)
{
// Translate to desktop coordinates
XTranslateCoordinates(xfi->display, event->xmotion.window,
RootWindowOfScreen(xfi->screen),
x, y, &x, &y, &childWindow);
}
if (extended)
input->ExtendedMouseEvent(input, flags, x, y);
else
input->MouseEvent(input, flags, x, y);
}
}
return true;
}
static boolean xf_event_ButtonRelease(xfInfo* xfi, XEvent* event, boolean app)
{
int x, y;
int flags;
Window childWindow;
boolean extended;
rdpInput* input;
input = xfi->instance->input;
x = 0;
y = 0;
flags = 0;
extended = false;
switch (event->xbutton.button)
{
case 1:
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_FLAGS_BUTTON1;
break;
case 2:
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_FLAGS_BUTTON3;
break;
case 3:
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_FLAGS_BUTTON2;
break;
case 6:
case 8:
case 97:
extended = true;
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_XFLAGS_BUTTON1;
break;
case 7:
case 9:
case 112:
extended = true;
x = event->xbutton.x;
y = event->xbutton.y;
flags = PTR_XFLAGS_BUTTON2;
break;
default:
flags = 0;
break;
}
if (flags != 0)
{
if (app)
{
// Translate to desktop coordinates
XTranslateCoordinates(xfi->display, event->xmotion.window,
RootWindowOfScreen(xfi->screen),
x, y, &x, &y, &childWindow);
}
if (extended)
input->ExtendedMouseEvent(input, flags, x, y);
else
input->MouseEvent(input, flags, x, y);
}
return true;
}
static boolean xf_event_KeyPress(xfInfo* xfi, XEvent* event, boolean app)
{
KeySym keysym;
char str[256];
XLookupString((XKeyEvent*) event, str, sizeof(str), &keysym, NULL);
xf_kbd_set_keypress(xfi, event->xkey.keycode, keysym);
if (xfi->fullscreen_toggle && xf_kbd_handle_special_keys(xfi, keysym))
return true;
xf_kbd_send_key(xfi, true, event->xkey.keycode);
return true;
}
static boolean xf_event_KeyRelease(xfInfo* xfi, XEvent* event, boolean app)
{
XEvent next_event;
if (XPending(xfi->display))
{
memset(&next_event, 0, sizeof(next_event));
XPeekEvent(xfi->display, &next_event);
if (next_event.type == KeyPress)
{
if (next_event.xkey.keycode == event->xkey.keycode)
return true;
}
}
xf_kbd_unset_keypress(xfi, event->xkey.keycode);
xf_kbd_send_key(xfi, false, event->xkey.keycode);
return true;
}
static boolean xf_event_FocusIn(xfInfo* xfi, XEvent* event, boolean app)
{
if (event->xfocus.mode == NotifyGrab)
return true;
xfi->focused = true;
if (xfi->mouse_active && (app != true))
XGrabKeyboard(xfi->display, xfi->window->handle, true, GrabModeAsync, GrabModeAsync, CurrentTime);
if (app)
{
xf_rail_send_activate(xfi, event->xany.window, true);
rdpWindow* window;
rdpRail* rail = ((rdpContext*) xfi->context)->rail;
window = window_list_get_by_extra_id(rail->list, (void*) event->xany.window);
//Update the server with any window changes that occured while the window was not focused.
if (window != NULL)
xf_rail_adjust_position(xfi, window);
}
xf_kbd_focus_in(xfi);
if (app != true)
xf_cliprdr_check_owner(xfi);
return true;
}
static boolean xf_event_FocusOut(xfInfo* xfi, XEvent* event, boolean app)
{
if (event->xfocus.mode == NotifyUngrab)
return true;
xfi->focused = false;
if (event->xfocus.mode == NotifyWhileGrabbed)
XUngrabKeyboard(xfi->display, CurrentTime);
if (app)
xf_rail_send_activate(xfi, event->xany.window, false);
return true;
}
static boolean xf_event_MappingNotify(xfInfo* xfi, XEvent* event, boolean app)
{
if (event->xmapping.request == MappingModifier)
{
XFreeModifiermap(xfi->modifier_map);
xfi->modifier_map = XGetModifierMapping(xfi->display);
}
return true;
}
static boolean xf_event_ClientMessage(xfInfo* xfi, XEvent* event, boolean app)
{
if ((event->xclient.message_type == xfi->WM_PROTOCOLS)
&& ((Atom) event->xclient.data.l[0] == xfi->WM_DELETE_WINDOW))
{
if (app)
{
DEBUG_X11("RAIL window closed");
rdpWindow* window;
rdpRail* rail = ((rdpContext*) xfi->context)->rail;
window = window_list_get_by_extra_id(rail->list, (void*) event->xclient.window);
if (window != NULL)
{
xf_rail_send_client_system_command(xfi, window->windowId, SC_CLOSE);
}
return true;
}
else
{
DEBUG_X11("Main window closed");
return false;
}
}
return true;
}
static boolean xf_event_EnterNotify(xfInfo* xfi, XEvent* event, boolean app)
{
if (app != true)
{
xfi->mouse_active = true;
if (xfi->fullscreen)
XSetInputFocus(xfi->display, xfi->window->handle, RevertToPointerRoot, CurrentTime);
if (xfi->focused)
XGrabKeyboard(xfi->display, xfi->window->handle, true, GrabModeAsync, GrabModeAsync, CurrentTime);
}
else
{
/* keep track of which window has focus so that we can apply pointer updates */
xfWindow* xfw;
rdpWindow* window;
rdpRail* rail = ((rdpContext*) xfi->context)->rail;
window = window_list_get_by_extra_id(rail->list, (void*) event->xexpose.window);
if (window != NULL)
{
xfw = (xfWindow*) window->extra;
xfi->window = xfw;
}
}
return true;
}
static boolean xf_event_LeaveNotify(xfInfo* xfi, XEvent* event, boolean app)
{
if (app != true)
{
xfi->mouse_active = false;
XUngrabKeyboard(xfi->display, CurrentTime);
}
return true;
}
static boolean xf_event_ConfigureNotify(xfInfo* xfi, XEvent* event, boolean app)
{
rdpWindow* window;
rdpRail* rail = ((rdpContext*) xfi->context)->rail;
window = window_list_get_by_extra_id(rail->list, (void*) event->xconfigure.window);
if (window != NULL)
{
xfWindow* xfw;
Window childWindow;
xfw = (xfWindow*) window->extra;
/*
* ConfigureNotify coordinates are expressed relative to the window parent.
* Translate these to root window coordinates.
*/
XTranslateCoordinates(xfi->display, xfw->handle,
RootWindowOfScreen(xfi->screen),
0, 0, &xfw->left, &xfw->top, &childWindow);
xfw->width = event->xconfigure.width;
xfw->height = event->xconfigure.height;
xfw->right = xfw->left + xfw->width - 1;
xfw->bottom = xfw->top + xfw->height - 1;
DEBUG_X11_LMS("window=0x%X rc={l=%d t=%d r=%d b=%d} w=%u h=%u send_event=%d",
(uint32) xfw->handle, xfw->left, xfw->top, xfw->right, xfw->bottom,
xfw->width, xfw->height, event->xconfigure.send_event);
//additonal checks for not in a local move and not ignoring configure to send position update to server,
//also should the window not be focused then do not send to server yet(ie. resizing using window decoration).
//The server will be updated when the window gets refocused.
if (app && (!event->xconfigure.send_event || xfi->window->local_move.state == LMS_NOT_ACTIVE)
&& !xfw->rail_ignore_configure && xfi->focused)
xf_rail_adjust_position(xfi, window);
}
return True;
}
static boolean xf_event_MapNotify(xfInfo* xfi, XEvent* event, boolean app)
{
RECTANGLE_16 rect;
rdpWindow* window;
rdpUpdate* update = xfi->instance->update;
rdpRail* rail = ((rdpContext*) xfi->context)->rail;
if (app != true)
{
if (xfi->suppress_output == true)
{
xfi->suppress_output = false;
rect.left = 0;
rect.top = 0;
rect.right = xfi->width;
rect.bottom = xfi->height;
update->SuppressOutput((rdpContext*) xfi->context, 1, &rect);
}
}
else
{
window = window_list_get_by_extra_id(rail->list, (void*) event->xany.window);
if (window != NULL)
{
/* local restore event */
//This is now handled as part of the PropertyNotify
//Doing this here would inhibit the ability to restore a maximized window
//that is minimized back to the maximized state
//xf_rail_send_client_system_command(xfi, window->windowId, SC_RESTORE);
xfWindow *xfw = (xfWindow*) window->extra;
xfw->is_mapped = true;
}
}
return true;
}
static boolean xf_event_UnmapNotify(xfInfo* xfi, XEvent* event, boolean app)
{
rdpWindow* window;
rdpUpdate* update = xfi->instance->update;
rdpRail* rail = ((rdpContext*) xfi->context)->rail;
xf_kbd_release_all_keypress(xfi);
if (app != true)
{
if (xfi->suppress_output == false)
{
xfi->suppress_output = true;
update->SuppressOutput((rdpContext*) xfi->context, 0, NULL);
}
}
else
{
window = window_list_get_by_extra_id(rail->list, (void*) event->xany.window);
if (window != NULL)
{
xfWindow *xfw = (xfWindow*) window->extra;
xfw->is_mapped = false;
}
}
return true;
}
static boolean xf_event_SelectionNotify(xfInfo* xfi, XEvent* event, boolean app)
{
if (app != true)
{
if (xf_cliprdr_process_selection_notify(xfi, event))
return true;
}
return true;
}
static boolean xf_event_SelectionRequest(xfInfo* xfi, XEvent* event, boolean app)
{
if (app != true)
{
if (xf_cliprdr_process_selection_request(xfi, event))
return true;
}
return true;
}
static boolean xf_event_SelectionClear(xfInfo* xfi, XEvent* event, boolean app)
{
if (app != true)
{
if (xf_cliprdr_process_selection_clear(xfi, event))
return true;
}
return true;
}
static boolean xf_event_PropertyNotify(xfInfo* xfi, XEvent* event, boolean app)
{
//This section handles sending the appropriate commands to the rail server
//when the window has been minimized, maximized, restored locally
//ie. not using the buttons on the rail window itself
if (app == true)
{
rdpWindow* window;
rdpRail* rail = ((rdpContext*) xfi->context)->rail;
window = window_list_get_by_extra_id(rail->list, (void*) event->xany.window);
if ((((Atom)event->xproperty.atom == xfi->_NET_WM_STATE) && (event->xproperty.state != PropertyDelete)) ||
(((Atom)event->xproperty.atom == xfi->WM_STATE) && (event->xproperty.state != PropertyDelete)))
{
boolean status;
boolean maxVert = false;
boolean maxHorz = false;
boolean minimized = false;
unsigned long nitems;
unsigned long bytes;
unsigned char* prop;
int i;
status = xf_GetWindowProperty(xfi, event->xproperty.window,
xfi->_NET_WM_STATE, 12, &nitems, &bytes, &prop);
if (status != true) {
DEBUG_X11_LMS("No return _NET_WM_STATE, window is not maximized");
}
for (i=0;i<nitems;i++)
{
if ((Atom) ((uint16 **) prop)[i] == XInternAtom(xfi->display, "_NET_WM_STATE_MAXIMIZED_VERT", False))
{
maxVert = true;
}
if ((Atom) ((uint16 **)prop)[i] == XInternAtom(xfi->display, "_NET_WM_STATE_MAXIMIZED_HORZ", False))
{
maxHorz = true;
}
}
XFree(prop);
status = xf_GetWindowProperty(xfi, event->xproperty.window,
xfi->WM_STATE, 1, &nitems, &bytes, &prop);
if (status != true) {
DEBUG_X11_LMS("No return WM_STATE, window is not minimized");
}
else
{
//If the window is in the iconic state
if (((uint32) *prop == 3))
{
minimized = true;
}
else
minimized = false;
XFree(prop);
}
if (maxVert && maxHorz && !minimized && (xfi->window->rail_state != WINDOW_SHOW_MAXIMIZED))
{
DEBUG_X11_LMS("Send SC_MAXIMIZE command to rail server.");
xfi->window->rail_state = WINDOW_SHOW_MAXIMIZED;
xf_rail_send_client_system_command(xfi, window->windowId, SC_MAXIMIZE);
}
else if (minimized && (xfi->window->rail_state != WINDOW_SHOW_MINIMIZED))
{
DEBUG_X11_LMS("Send SC_MINIMIZE command to rail server.");
xfi->window->rail_state = WINDOW_SHOW_MINIMIZED;
xf_rail_send_client_system_command(xfi, window->windowId, SC_MINIMIZE);
}
else if (!minimized && !maxVert && !maxHorz && (xfi->window->rail_state != WINDOW_SHOW))
{
DEBUG_X11_LMS("Send SC_RESTORE command to rail server");
xfi->window->rail_state = WINDOW_SHOW;
xf_rail_send_client_system_command(xfi, window->windowId, SC_RESTORE);
}
}
}
if (app != true)
{
if (xf_cliprdr_process_property_notify(xfi, event))
return true;
}
return true;
}
static boolean xf_event_suppress_events(xfInfo *xfi, rdpWindow *window, XEvent*event)
{
if (! xfi->remote_app)
return false;
switch (xfi->window->local_move.state)
{
case LMS_NOT_ACTIVE:
// No local move in progress, nothing to do
//Prevent Configure from happening during indeterminant state of Horz or Vert Max only
if ( (event->type == ConfigureNotify) && xfi->window->rail_ignore_configure)
{
DEBUG_X11_LMS("ConfigureNotify Event Ignored");
xfi->window->rail_ignore_configure = false;
return true;
}
break;
case LMS_STARTING:
// Local move initiated by RDP server, but we
// have not yet seen any updates from the X server
switch(event->type)
{
case ConfigureNotify:
// Starting to see move events
// from the X server. Local
// move is now in progress.
xfi->window->local_move.state = LMS_ACTIVE;
// Allow these events to be processed during move to keep
// our state up to date.
break;
case ButtonPress:
case ButtonRelease:
case KeyPress:
case KeyRelease:
case UnmapNotify:
// A button release event means the X
// window server did not grab the
// mouse before the user released it.
// In this case we must cancel the
// local move. The event will be
// processed below as normal, below.
break;
case VisibilityNotify:
case PropertyNotify:
case Expose:
// Allow these events to pass
break;
default:
// Eat any other events
return true;
}
break;
case LMS_ACTIVE:
// Local move is in progress
switch(event->type)
{
case ConfigureNotify:
case VisibilityNotify:
case PropertyNotify:
case Expose:
case GravityNotify:
// Keep us up to date on position
break;
default:
DEBUG_X11_LMS("Event Type to break LMS: %s", X11_EVENT_STRINGS[event->type]);
// Any other event terminates move
xf_rail_end_local_move(xfi, window);
break;
}
break;
case LMS_TERMINATING:
// Already sent RDP end move to sever
// Allow events to pass.
break;
}
return false;
}
boolean xf_event_process(freerdp* instance, XEvent* event)
{
boolean status = true;
xfInfo* xfi = ((xfContext*) instance->context)->xfi;
rdpRail* rail = ((rdpContext*) xfi->context)->rail;
rdpWindow* window;
if (xfi->remote_app)
{
window = window_list_get_by_extra_id(
rail->list, (void*) event->xexpose.window);
if (window)
{
// Update "current" window for cursor change orders
xfi->window = (xfWindow *) window->extra;
if (xf_event_suppress_events(xfi, window, event))
return true;
}
}
if (event->type != MotionNotify)
DEBUG_X11("%s Event(%d): wnd=0x%04X", X11_EVENT_STRINGS[event->type], event->type, (uint32) event->xany.window);
switch (event->type)
{
case Expose:
status = xf_event_Expose(xfi, event, xfi->remote_app);
break;
case VisibilityNotify:
status = xf_event_VisibilityNotify(xfi, event, xfi->remote_app);
break;
case MotionNotify:
status = xf_event_MotionNotify(xfi, event, xfi->remote_app);
break;
case ButtonPress:
status = xf_event_ButtonPress(xfi, event, xfi->remote_app);
break;
case ButtonRelease:
status = xf_event_ButtonRelease(xfi, event, xfi->remote_app);
break;
case KeyPress:
status = xf_event_KeyPress(xfi, event, xfi->remote_app);
break;
case KeyRelease:
status = xf_event_KeyRelease(xfi, event, xfi->remote_app);
break;
case FocusIn:
status = xf_event_FocusIn(xfi, event, xfi->remote_app);
break;
case FocusOut:
status = xf_event_FocusOut(xfi, event, xfi->remote_app);
break;
case EnterNotify:
status = xf_event_EnterNotify(xfi, event, xfi->remote_app);
break;
case LeaveNotify:
status = xf_event_LeaveNotify(xfi, event, xfi->remote_app);
break;
case NoExpose:
break;
case GraphicsExpose:
break;
case ConfigureNotify:
status = xf_event_ConfigureNotify(xfi, event, xfi->remote_app);
break;
case MapNotify:
status = xf_event_MapNotify(xfi, event, xfi->remote_app);
break;
case UnmapNotify:
status = xf_event_UnmapNotify(xfi, event, xfi->remote_app);
break;
case ReparentNotify:
break;
case MappingNotify:
status = xf_event_MappingNotify(xfi, event, xfi->remote_app);
break;
case ClientMessage:
status = xf_event_ClientMessage(xfi, event, xfi->remote_app);
break;
case SelectionNotify:
status = xf_event_SelectionNotify(xfi, event, xfi->remote_app);
break;
case SelectionRequest:
status = xf_event_SelectionRequest(xfi, event, xfi->remote_app);
break;
case SelectionClear:
status = xf_event_SelectionClear(xfi, event, xfi->remote_app);
break;
case PropertyNotify:
status = xf_event_PropertyNotify(xfi, event, xfi->remote_app);
break;
}
return status;
}
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