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[client] spice: use simple custom Wayland mouse logic

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The normal logic does not work due to Wayland not supporting mouse warp.
We use a simple logic that works for the desktop with 1:1 mouse patch and
require capture mode for all other cases.
This commit is contained in:
Quantum
2021-01-10 00:53:02 -05:00
committed by Geoffrey McRae
parent 790c2b39ad
commit 78bd41716a
1 changed files with 29 additions and 0 deletions
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29
client/src/main.c
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@@ -913,6 +913,25 @@ static void guestCurToLocal(struct DoublePoint *local)
local->y = (g_cursor.guest.y + g_cursor.guest.hy) / g_cursor.scale.y;
}
// On Wayland, our normal cursor logic does not work due to the lack of cursor
// warp support. Instead, we attempt a best-effort emulation which works with a
// 1:1 mouse movement patch applied in the guest. For anything fancy, use
// capture mode.
static void handleMouseWayland()
{
double ex = (g_cursor.pos.x - g_cursor.guest.x) / g_cursor.dpiScale;
double ey = (g_cursor.pos.y - g_cursor.guest.y) / g_cursor.dpiScale;
int x, y;
cursorToInt(ex, ey, &x, &y);
g_cursor.delta.x += x;
g_cursor.delta.y += y;
if (!spice_mouse_motion(x, y))
DEBUG_ERROR("failed to send mouse motion message");
}
static void handleMouseNormal(double ex, double ey)
{
/* if we don't have the current cursor pos just send cursor movements */
@@ -923,6 +942,12 @@ static void handleMouseNormal(double ex, double ey)
return;
}
if (g_state.wminfo.subsystem == SDL_SYSWM_WAYLAND)
{
handleMouseWayland();
return;
}
/* scale the movement to the guest */
if (g_cursor.useScale && params.scaleMouseInput)
{
@@ -1197,11 +1222,15 @@ int eventFilter(void * userdata, SDL_Event * event)
switch(event->window.event)
{
case SDL_WINDOWEVENT_ENTER:
if (g_state.wminfo.subsystem == SDL_SYSWM_WAYLAND)
g_cursor.inView = true;
if (g_state.wminfo.subsystem != SDL_SYSWM_X11)
handleWindowEnter();
break;
case SDL_WINDOWEVENT_LEAVE:
if (g_state.wminfo.subsystem == SDL_SYSWM_WAYLAND)
g_cursor.inView = false;
if (g_state.wminfo.subsystem != SDL_SYSWM_X11)
handleWindowLeave();
break;