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Backport touchpad intertial scrolling

This commit is contained in:
sefler 2022-09-12 13:29:11 +08:00 committed by Koichiro Iwao
parent ccee5af1f4
commit 34819ac504
4 changed files with 96 additions and 4 deletions
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1
.gitignore vendored
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@ -53,3 +53,4 @@ xrdp/xrdp
xrdp/xrdp.ini
xrdp_configure_options.h
xrdpapi/xrdp-xrdpapi-simple
.vscode/*

10
common/xrdp_constants.h
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@ -232,6 +232,12 @@
#define BUTTON_STATE_UP 0
#define BUTTON_STATE_DOWN 1
/* touch gestures */
#define TOUCH_TWO_FINGERS_DOWN 0
#define TOUCH_TWO_FINGERS_UP 1
#define TOUCH_TWO_FINGERS_LEFT 2
#define TOUCH_TWO_FINGERS_RIGHT 3
/* messages */
#define WM_PAINT 3
#define WM_KEYDOWN 15
@ -255,6 +261,10 @@
#define WM_BUTTON8DOWN 116
#define WM_BUTTON9UP 117
#define WM_BUTTON9DOWN 118
#define WM_TOUCH_VSCROLL 140
#define WM_TOUCH_HSCROLL 141
#define WM_INVALIDATE 200
#define CB_ITEMCHANGE 300

2
xrdp/xrdp.h
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@ -119,6 +119,8 @@ xrdp_wm_get_vis_region(struct xrdp_wm *self, struct xrdp_bitmap *bitmap,
int
xrdp_wm_mouse_move(struct xrdp_wm *self, int x, int y);
int
xrdp_wm_mouse_touch(struct xrdp_wm *self, int gesture, int param);
int
xrdp_wm_mouse_click(struct xrdp_wm *self, int x, int y, int but, int down);
int
xrdp_wm_key(struct xrdp_wm *self, int device_flags, int scan_code);

87
xrdp/xrdp_wm.c
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@ -1224,6 +1224,29 @@ xrdp_wm_clear_popup(struct xrdp_wm *self)
return 0;
}
/*****************************************************************************/
int
xrdp_wm_mouse_touch(struct xrdp_wm *self, int gesture, int param)
{
LOG(LOG_LEVEL_DEBUG, "mouse touch event gesture %d param %d", gesture, param);
switch (gesture)
{
case TOUCH_TWO_FINGERS_UP:
case TOUCH_TWO_FINGERS_DOWN:
self->mm->mod->mod_event(self->mm->mod, WM_TOUCH_VSCROLL,
self->mouse_x, self->mouse_y, param, 0);
break;
case TOUCH_TWO_FINGERS_RIGHT:
case TOUCH_TWO_FINGERS_LEFT:
self->mm->mod->mod_event(self->mm->mod, WM_TOUCH_HSCROLL,
self->mouse_x, self->mouse_y, param, 0);
break;
}
return 0;
}
/*****************************************************************************/
int
xrdp_wm_mouse_click(struct xrdp_wm *self, int x, int y, int but, int down)
@ -1769,13 +1792,41 @@ xrdp_wm_process_input_mouse(struct xrdp_wm *self, int device_flags,
/* vertical mouse wheel */
if (device_flags & PTRFLAGS_WHEEL)
{
int delta = 0;
if (device_flags & PTRFLAGS_WHEEL_NEGATIVE)
{
xrdp_wm_mouse_click(self, 0, 0, 5, 0);
/**
* [MS-RDPBCGR] 2.2.8.1.1.3.1.1.3 Mouse Event (TS_POINTER_EVENT)
* In negative scrolling, rotation distance is negative and the delta
* is represented by the lowest byte.
* Examples:
* device_flags = 0x020a, positive vertical scrolling, distance 10
* device_flags = 0x03f6, negative vertical scrolling, distance -10
*
* The negative number is represented by complement.
*/
delta = (device_flags & WheelRotationMask) | ~WheelRotationMask;
if (delta != 0)
{
// Use nature scrolling, up direction is negative.
xrdp_wm_mouse_touch(self, TOUCH_TWO_FINGERS_UP, delta);
}
else
{
xrdp_wm_mouse_click(self, 0, 0, 5, 0);
}
}
else
{
xrdp_wm_mouse_click(self, 0, 0, 4, 0);
delta = device_flags & WheelRotationMask;
if (delta != 0)
{
xrdp_wm_mouse_touch(self, TOUCH_TWO_FINGERS_DOWN, delta);
}
else
{
xrdp_wm_mouse_click(self, 0, 0, 4, 0);
}
}
}
@ -1787,13 +1838,41 @@ xrdp_wm_process_input_mouse(struct xrdp_wm *self, int device_flags,
*/
if (device_flags & PTRFLAGS_HWHEEL)
{
int delta = 0;
if (device_flags & PTRFLAGS_WHEEL_NEGATIVE)
{
xrdp_wm_mouse_click(self, 0, 0, 6, 0);
/**
* [MS-RDPBCGR] 2.2.8.1.1.3.1.1.3 Mouse Event (TS_POINTER_EVENT)
* In negative scrolling, rotation distance is negative and the delta
* is represented by the lowest byte.
* Examples:
* device_flags = 0x040a, positive horizontal scrolling, distance 10
* device_flags = 0x05f6, negative horizontal scrolling, distance -10
*
* The negative number is represented by complement.
*/
delta = (device_flags & WheelRotationMask) | ~WheelRotationMask;
if (delta != 0)
{
// Use nature scrolling, right direction is negative.
xrdp_wm_mouse_touch(self, TOUCH_TWO_FINGERS_RIGHT, delta);
}
else
{
xrdp_wm_mouse_click(self, 0, 0, 6, 0);
}
}
else
{
xrdp_wm_mouse_click(self, 0, 0, 7, 0);
delta = device_flags & WheelRotationMask;
if (delta != 0)
{
xrdp_wm_mouse_touch(self, TOUCH_TWO_FINGERS_LEFT, delta);
}
else
{
xrdp_wm_mouse_click(self, 0, 0, 7, 0);
}
}
}