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/*********************************************************
* Copyright (C) 2005 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* pointer.c --
*
* Set of functions for pointer (mouse) grab/ungrab.
*/
#include "vmwareuserInt.h"
#include <stdlib.h>
#include <string.h>
#include "vm_assert.h"
#include "debug.h"
#include "str.h"
#include "strutil.h"
#include "guestApp.h"
#include "eventManager.h"
#include "vmware/guestrpc/tclodefs.h"
static GuestAppAbsoluteMouseState absoluteMouseState = GUESTAPP_ABSMOUSE_UNKNOWN;
static Bool mouseIsGrabbed;
static uint8 gHostClipboardTries = 0;
/*
* Forward Declarations
*/
void PointerGrabbed(void);
void PointerUngrabbed(void);
void PointerGetXCursorPos(int *x, int *y);
static Bool PointerUpdatePointerLoop(void* clientData);
/*
*-----------------------------------------------------------------------------
*
* PointerGetXCursorPos --
*
* Return the position in pixels of the X (mouse) pointer in the root
* window.
*
* Results:
* x and y coordinates.
*
* Side effects:
* None.
*-----------------------------------------------------------------------------
*/
void
PointerGetXCursorPos(int *rootX, int *rootY)
{
Window rootWin;
Window childWin;
int x;
int y;
unsigned int mask;
XQueryPointer(gXDisplay, gXRoot, &rootWin, &childWin, rootX, rootY, &x, &y, &mask);
}
/*
*-----------------------------------------------------------------------------
*
* PointerSetXCursorPos
*
* Set the position in pixels of the X (mouse) pointer in the root window
*
* Results:
* None.
*
* Side effects:
* None.
*
*-----------------------------------------------------------------------------
*/
void
PointerSetXCursorPos(int x, int y)
{
XWarpPointer(gXDisplay, None, gXRoot, 0, 0, 0, 0, x, y);
}
/*
*-----------------------------------------------------------------------------
*
* PointerGrabbed --
*
* Called when the pointer's state switches from released to grabbed.
* We warp the cursor to whatever position the vmx tells us, and then
* setup the loop which attempts to get the host clipboard.
*
* Results:
* None.
*
* Side effects:
* None.
*
*-----------------------------------------------------------------------------
*/
void
PointerGrabbed()
{
short hostPosX;
short hostPosY;
GuestApp_GetPos(&hostPosX, &hostPosY);
PointerSetXCursorPos(hostPosX, hostPosY);
gHostClipboardTries = 9;
}
/*
*-----------------------------------------------------------------------------
*
* PointerUngrabbed --
*
* Called when the pointer's state switches from grabbed to release.
*
* Results:
* None.
*
* Side effects:
* None.
*
*-----------------------------------------------------------------------------
*/
void
PointerUngrabbed(void)
{
CopyPaste_RequestSelection();
}
/*
*-----------------------------------------------------------------------------
*
* PointerUpdatePointerLoop --
*
* Event Manager function for tracking the mouse/pointer/clipboard state.
* Manage grabbed/ungrab state based on x/y data from backdoor. On the
* transition to grabbed, call PointerHasBeenGrabbed(). While grabbed,
* send guest pointer coordinates thru the backdoor. Also, make several
* attempts to get the host clipboard from the backdoor. When changing
* to ungrabbed, call PointerHasBeenUngrabbed, which will push our
* clipboard thru the backdoor. While ungrabbed, don't do a thing.
*
* This function is queued in Event Manager only when vmx doesn't support
* RPC copy/paste because newer vmx initiates copy/paste from UI through
* RPC, and doesn't need cursor grab/ungrab state to start copy/paste.
*
* Results:
* TRUE.
*
* Side effects:
* Lots. The vmx's notion of guest cursor position could change, the
* vmx's clipboard could change, and the guest's clipboard could change.
*
*-----------------------------------------------------------------------------
*/
static Bool
PointerUpdatePointerLoop(void* clientData) // IN: unused
{
int16 hostX, hostY;
int guestX, guestY;
GuestApp_GetPos(&hostX, &hostY);
if (mouseIsGrabbed) {
if (hostX == UNGRABBED_POS) {
/* We transitioned from grabbed to ungrabbed */
mouseIsGrabbed = FALSE;
PointerUngrabbed();
} else {
PointerGetXCursorPos(&guestX, &guestY);
if (hostX != guestX || hostY != guestY) {
GuestApp_SetPos(guestX,guestY);
}
if (gHostClipboardTries-- > 0) {
if (gHostClipboardTries < 6 &&
CopyPaste_GetBackdoorSelections()) {
gHostClipboardTries = 0;
}
}
}
} else {
if (hostX != UNGRABBED_POS) {
mouseIsGrabbed = TRUE;
PointerGrabbed();
}
}
if (!CopyPaste_IsRpcCPSupported() ||
(absoluteMouseState == GUESTAPP_ABSMOUSE_UNAVAILABLE)) {
EventManager_Add(gEventQueue, POINTER_POLL_TIME, PointerUpdatePointerLoop,
clientData);
}
return TRUE;
}
/*
*-----------------------------------------------------------------------------
*
* Pointer_Register --
*
* Initialize Pointer.
*
* Results:
* Always TRUE.
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
Bool
Pointer_Register(GtkWidget* mainWnd)
{
absoluteMouseState = GuestApp_GetAbsoluteMouseState();
PointerUpdatePointerLoop(mainWnd);
mouseIsGrabbed = FALSE;
return TRUE;
}
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