Backport touchpad intertial scrolling
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.gitignore
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@ -53,3 +53,4 @@ xrdp/xrdp
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xrdp/xrdp.ini
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xrdp_configure_options.h
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xrdpapi/xrdp-xrdpapi-simple
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.vscode/*
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@ -232,6 +232,12 @@
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#define BUTTON_STATE_UP 0
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#define BUTTON_STATE_DOWN 1
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/* touch gestures */
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#define TOUCH_TWO_FINGERS_DOWN 0
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#define TOUCH_TWO_FINGERS_UP 1
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#define TOUCH_TWO_FINGERS_LEFT 2
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#define TOUCH_TWO_FINGERS_RIGHT 3
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/* messages */
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#define WM_PAINT 3
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#define WM_KEYDOWN 15
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@ -255,6 +261,10 @@
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#define WM_BUTTON8DOWN 116
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#define WM_BUTTON9UP 117
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#define WM_BUTTON9DOWN 118
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#define WM_TOUCH_VSCROLL 140
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#define WM_TOUCH_HSCROLL 141
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#define WM_INVALIDATE 200
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#define CB_ITEMCHANGE 300
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@ -119,6 +119,8 @@ xrdp_wm_get_vis_region(struct xrdp_wm *self, struct xrdp_bitmap *bitmap,
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int
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xrdp_wm_mouse_move(struct xrdp_wm *self, int x, int y);
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int
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xrdp_wm_mouse_touch(struct xrdp_wm *self, int gesture, int param);
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int
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xrdp_wm_mouse_click(struct xrdp_wm *self, int x, int y, int but, int down);
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int
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xrdp_wm_key(struct xrdp_wm *self, int device_flags, int scan_code);
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@ -1224,6 +1224,29 @@ xrdp_wm_clear_popup(struct xrdp_wm *self)
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return 0;
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}
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/*****************************************************************************/
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int
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xrdp_wm_mouse_touch(struct xrdp_wm *self, int gesture, int param)
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{
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LOG(LOG_LEVEL_DEBUG, "mouse touch event gesture %d param %d", gesture, param);
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switch (gesture)
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{
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case TOUCH_TWO_FINGERS_UP:
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case TOUCH_TWO_FINGERS_DOWN:
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self->mm->mod->mod_event(self->mm->mod, WM_TOUCH_VSCROLL,
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self->mouse_x, self->mouse_y, param, 0);
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break;
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case TOUCH_TWO_FINGERS_RIGHT:
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case TOUCH_TWO_FINGERS_LEFT:
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self->mm->mod->mod_event(self->mm->mod, WM_TOUCH_HSCROLL,
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self->mouse_x, self->mouse_y, param, 0);
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break;
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}
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return 0;
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}
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/*****************************************************************************/
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int
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xrdp_wm_mouse_click(struct xrdp_wm *self, int x, int y, int but, int down)
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@ -1769,13 +1792,41 @@ xrdp_wm_process_input_mouse(struct xrdp_wm *self, int device_flags,
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/* vertical mouse wheel */
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if (device_flags & PTRFLAGS_WHEEL)
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{
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int delta = 0;
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if (device_flags & PTRFLAGS_WHEEL_NEGATIVE)
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{
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xrdp_wm_mouse_click(self, 0, 0, 5, 0);
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/**
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* [MS-RDPBCGR] 2.2.8.1.1.3.1.1.3 Mouse Event (TS_POINTER_EVENT)
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* In negative scrolling, rotation distance is negative and the delta
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* is represented by the lowest byte.
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* Examples:
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* device_flags = 0x020a, positive vertical scrolling, distance 10
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* device_flags = 0x03f6, negative vertical scrolling, distance -10
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*
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* The negative number is represented by complement.
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*/
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delta = (device_flags & WheelRotationMask) | ~WheelRotationMask;
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if (delta != 0)
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{
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// Use nature scrolling, up direction is negative.
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xrdp_wm_mouse_touch(self, TOUCH_TWO_FINGERS_UP, delta);
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}
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else
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{
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xrdp_wm_mouse_click(self, 0, 0, 5, 0);
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}
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}
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else
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{
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xrdp_wm_mouse_click(self, 0, 0, 4, 0);
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delta = device_flags & WheelRotationMask;
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if (delta != 0)
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{
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xrdp_wm_mouse_touch(self, TOUCH_TWO_FINGERS_DOWN, delta);
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}
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else
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{
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xrdp_wm_mouse_click(self, 0, 0, 4, 0);
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}
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}
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}
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@ -1787,13 +1838,41 @@ xrdp_wm_process_input_mouse(struct xrdp_wm *self, int device_flags,
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*/
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if (device_flags & PTRFLAGS_HWHEEL)
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{
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int delta = 0;
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if (device_flags & PTRFLAGS_WHEEL_NEGATIVE)
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{
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xrdp_wm_mouse_click(self, 0, 0, 6, 0);
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/**
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* [MS-RDPBCGR] 2.2.8.1.1.3.1.1.3 Mouse Event (TS_POINTER_EVENT)
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* In negative scrolling, rotation distance is negative and the delta
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* is represented by the lowest byte.
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* Examples:
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* device_flags = 0x040a, positive horizontal scrolling, distance 10
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* device_flags = 0x05f6, negative horizontal scrolling, distance -10
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*
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* The negative number is represented by complement.
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*/
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delta = (device_flags & WheelRotationMask) | ~WheelRotationMask;
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if (delta != 0)
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{
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// Use nature scrolling, right direction is negative.
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xrdp_wm_mouse_touch(self, TOUCH_TWO_FINGERS_RIGHT, delta);
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}
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else
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{
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xrdp_wm_mouse_click(self, 0, 0, 6, 0);
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}
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}
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else
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{
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xrdp_wm_mouse_click(self, 0, 0, 7, 0);
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delta = device_flags & WheelRotationMask;
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if (delta != 0)
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{
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xrdp_wm_mouse_touch(self, TOUCH_TWO_FINGERS_LEFT, delta);
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}
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else
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{
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xrdp_wm_mouse_click(self, 0, 0, 7, 0);
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}
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}
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}
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