| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| |
| /* |
| Contributed by Brandon Schaefer, <brandon.schaefer@canonical.com> |
| */ |
| |
| #include "../../SDL_internal.h" |
| |
| #if SDL_VIDEO_DRIVER_MIR |
| |
| #include "../../events/SDL_events_c.h" |
| #include "../../events/SDL_keyboard_c.h" |
| #include "../../events/SDL_touch_c.h" |
| #include "../../events/scancodes_xfree86.h" |
| |
| #include "SDL_mirevents.h" |
| #include "SDL_mirwindow.h" |
| |
| #include <xkbcommon/xkbcommon.h> |
| |
| #include "SDL_mirdyn.h" |
| |
| static void |
| HandleKeyText(int32_t key_code) |
| { |
| char text[8]; |
| int size = 0; |
| |
| size = MIR_xkb_keysym_to_utf8(key_code, text, sizeof text); |
| |
| if (size > 0) { |
| text[size] = '\0'; |
| SDL_SendKeyboardText(text); |
| } |
| } |
| |
| /* FIXME |
| Mir still needs to implement its IM API, for now we assume |
| a single key press produces a character. |
| */ |
| static void |
| HandleKeyEvent(MirKeyboardEvent const* key_event, SDL_Window* window) |
| { |
| xkb_keysym_t key_code; |
| Uint8 key_state; |
| int event_scancode; |
| uint32_t sdl_scancode = SDL_SCANCODE_UNKNOWN; |
| |
| MirKeyboardAction action = MIR_mir_keyboard_event_action(key_event); |
| |
| key_state = SDL_PRESSED; |
| key_code = MIR_mir_keyboard_event_key_code(key_event); |
| event_scancode = MIR_mir_keyboard_event_scan_code(key_event); |
| |
| if (action == mir_keyboard_action_up) |
| key_state = SDL_RELEASED; |
| |
| if (event_scancode < SDL_arraysize(xfree86_scancode_table2)) |
| sdl_scancode = xfree86_scancode_table2[event_scancode]; |
| |
| if (sdl_scancode != SDL_SCANCODE_UNKNOWN) |
| SDL_SendKeyboardKey(key_state, sdl_scancode); |
| |
| if (key_state == SDL_PRESSED) |
| HandleKeyText(key_code); |
| } |
| |
| static void |
| HandleMouseButton(SDL_Window* sdl_window, Uint8 state, MirPointerEvent const* pointer) |
| { |
| uint32_t sdl_button = SDL_BUTTON_LEFT; |
| MirPointerButton button_state = mir_pointer_button_primary; |
| |
| static uint32_t old_button_states = 0; |
| uint32_t new_button_states = MIR_mir_pointer_event_buttons(pointer); |
| |
| // XOR on our old button states vs our new states to get the newley pressed/released button |
| button_state = new_button_states ^ old_button_states; |
| |
| switch (button_state) { |
| case mir_pointer_button_primary: |
| sdl_button = SDL_BUTTON_LEFT; |
| break; |
| case mir_pointer_button_secondary: |
| sdl_button = SDL_BUTTON_RIGHT; |
| break; |
| case mir_pointer_button_tertiary: |
| sdl_button = SDL_BUTTON_MIDDLE; |
| break; |
| case mir_pointer_button_forward: |
| sdl_button = SDL_BUTTON_X1; |
| break; |
| case mir_pointer_button_back: |
| sdl_button = SDL_BUTTON_X2; |
| break; |
| default: |
| break; |
| } |
| |
| old_button_states = new_button_states; |
| |
| SDL_SendMouseButton(sdl_window, 0, state, sdl_button); |
| } |
| |
| static void |
| HandleMouseMotion(SDL_Window* sdl_window, int x, int y) |
| { |
| SDL_Mouse* mouse = SDL_GetMouse(); |
| SDL_SendMouseMotion(sdl_window, 0, mouse->relative_mode, x, y); |
| } |
| |
| static void |
| HandleTouchPress(int device_id, int source_id, SDL_bool down, float x, float y, float pressure) |
| { |
| SDL_SendTouch(device_id, source_id, down, x, y, pressure); |
| } |
| |
| static void |
| HandleTouchMotion(int device_id, int source_id, float x, float y, float pressure) |
| { |
| SDL_SendTouchMotion(device_id, source_id, x, y, pressure); |
| } |
| |
| static void |
| HandleMouseScroll(SDL_Window* sdl_window, int hscroll, int vscroll) |
| { |
| SDL_SendMouseWheel(sdl_window, 0, hscroll, vscroll, SDL_MOUSEWHEEL_NORMAL); |
| } |
| |
| static void |
| AddTouchDevice(int device_id) |
| { |
| if (SDL_AddTouch(device_id, "") < 0) |
| SDL_SetError("Error: can't add touch %s, %d", __FILE__, __LINE__); |
| } |
| |
| static void |
| HandleTouchEvent(MirTouchEvent const* touch, int device_id, SDL_Window* sdl_window) |
| { |
| int i, point_count; |
| point_count = MIR_mir_touch_event_point_count(touch); |
| |
| AddTouchDevice(device_id); |
| |
| for (i = 0; i < point_count; i++) { |
| int id = MIR_mir_touch_event_id(touch, i); |
| |
| int width = sdl_window->w; |
| int height = sdl_window->h; |
| |
| float x = MIR_mir_touch_event_axis_value(touch, i, mir_touch_axis_x); |
| float y = MIR_mir_touch_event_axis_value(touch, i, mir_touch_axis_y); |
| |
| float n_x = x / width; |
| float n_y = y / height; |
| |
| float pressure = MIR_mir_touch_event_axis_value(touch, i, mir_touch_axis_pressure); |
| |
| switch (MIR_mir_touch_event_action(touch, i)) { |
| case mir_touch_action_up: |
| HandleTouchPress(device_id, id, SDL_FALSE, n_x, n_y, pressure); |
| break; |
| case mir_touch_action_down: |
| HandleTouchPress(device_id, id, SDL_TRUE, n_x, n_y, pressure); |
| break; |
| case mir_touch_action_change: |
| HandleTouchMotion(device_id, id, n_x, n_y, pressure); |
| break; |
| case mir_touch_actions: |
| break; |
| } |
| } |
| } |
| |
| static void |
| HandleMouseEvent(MirPointerEvent const* pointer, SDL_Window* sdl_window) |
| { |
| SDL_SetMouseFocus(sdl_window); |
| |
| switch (MIR_mir_pointer_event_action(pointer)) { |
| case mir_pointer_action_button_down: |
| HandleMouseButton(sdl_window, SDL_PRESSED, pointer); |
| break; |
| case mir_pointer_action_button_up: |
| HandleMouseButton(sdl_window, SDL_RELEASED, pointer); |
| break; |
| case mir_pointer_action_motion: { |
| int x, y; |
| int hscroll, vscroll; |
| SDL_Mouse* mouse = SDL_GetMouse(); |
| x = MIR_mir_pointer_event_axis_value(pointer, mir_pointer_axis_x); |
| y = MIR_mir_pointer_event_axis_value(pointer, mir_pointer_axis_y); |
| |
| if (mouse) { |
| if (mouse->relative_mode) { |
| int relative_x = MIR_mir_pointer_event_axis_value(pointer, mir_pointer_axis_relative_x); |
| int relative_y = MIR_mir_pointer_event_axis_value(pointer, mir_pointer_axis_relative_y); |
| HandleMouseMotion(sdl_window, relative_x, relative_y); |
| } |
| else if (mouse->x != x || mouse->y != y) { |
| HandleMouseMotion(sdl_window, x, y); |
| } |
| } |
| |
| hscroll = MIR_mir_pointer_event_axis_value(pointer, mir_pointer_axis_hscroll); |
| vscroll = MIR_mir_pointer_event_axis_value(pointer, mir_pointer_axis_vscroll); |
| if (vscroll != 0 || hscroll != 0) |
| HandleMouseScroll(sdl_window, hscroll, vscroll); |
| } |
| break; |
| case mir_pointer_action_leave: |
| SDL_SetMouseFocus(NULL); |
| break; |
| case mir_pointer_action_enter: |
| default: |
| break; |
| } |
| } |
| |
| static void |
| MIR_HandleInput(MirInputEvent const* input_event, SDL_Window* window) |
| { |
| switch (MIR_mir_input_event_get_type(input_event)) { |
| case (mir_input_event_type_key): |
| HandleKeyEvent(MIR_mir_input_event_get_keyboard_event(input_event), window); |
| break; |
| case (mir_input_event_type_pointer): |
| HandleMouseEvent(MIR_mir_input_event_get_pointer_event(input_event), window); |
| break; |
| case (mir_input_event_type_touch): |
| HandleTouchEvent(MIR_mir_input_event_get_touch_event(input_event), |
| MIR_mir_input_event_get_device_id(input_event), |
| window); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void |
| MIR_HandleResize(MirResizeEvent const* resize_event, SDL_Window* window) |
| { |
| int new_w = MIR_mir_resize_event_get_width (resize_event); |
| int new_h = MIR_mir_resize_event_get_height(resize_event); |
| |
| int old_w = window->w; |
| int old_h = window->h; |
| |
| if (new_w != old_w || new_h != old_h) |
| SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, new_w, new_h); |
| } |
| |
| static void |
| MIR_HandleSurface(MirSurfaceEvent const* surface_event, SDL_Window* window) |
| { |
| MirSurfaceAttrib attrib = MIR_mir_surface_event_get_attribute(surface_event); |
| int value = MIR_mir_surface_event_get_attribute_value(surface_event); |
| |
| if (attrib == mir_surface_attrib_focus) { |
| if (value == mir_surface_focused) { |
| SDL_SetKeyboardFocus(window); |
| } |
| else if (value == mir_surface_unfocused) { |
| SDL_SetKeyboardFocus(NULL); |
| } |
| } |
| } |
| |
| void |
| MIR_HandleEvent(MirSurface* surface, MirEvent const* ev, void* context) |
| { |
| MirEventType event_type = MIR_mir_event_get_type(ev); |
| SDL_Window* window = (SDL_Window*)context; |
| |
| if (window) { |
| switch (event_type) { |
| case (mir_event_type_input): |
| MIR_HandleInput(MIR_mir_event_get_input_event(ev), window); |
| break; |
| case (mir_event_type_resize): |
| MIR_HandleResize(MIR_mir_event_get_resize_event(ev), window); |
| break; |
| case (mir_event_type_surface): |
| MIR_HandleSurface(MIR_mir_event_get_surface_event(ev), window); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_MIR */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |