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Improve key processing readability

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The condition "event->type == SDL_KEYDOWN" and the variable
input_manager->controller are used many times. Replace them by local
variables to reduce verbosity.
This commit is contained in:
Romain Vimont 2019-05-31 23:25:41 +02:00
parent 296047d82a
commit 41225c3e41
1 changed files with 29 additions and 30 deletions
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59
app/src/input_manager.c
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@ -232,6 +232,9 @@ void
input_manager_process_key(struct input_manager *input_manager,
const SDL_KeyboardEvent *event,
bool control) {
// control: indicates the state of the command-line option --no-control
// ctrl: the Ctrl key
bool ctrl = event->keysym.mod & (KMOD_LCTRL | KMOD_RCTRL);
bool alt = event->keysym.mod & (KMOD_LALT | KMOD_RALT);
bool meta = event->keysym.mod & (KMOD_LGUI | KMOD_RGUI);
@ -242,45 +245,48 @@ input_manager_process_key(struct input_manager *input_manager,
return;
}
struct controller *controller = input_manager->controller;
// capture all Ctrl events
if (ctrl | meta) {
SDL_Keycode keycode = event->keysym.sym;
int action = event->type == SDL_KEYDOWN ? ACTION_DOWN : ACTION_UP;
bool down = event->type == SDL_KEYDOWN;
int action = down ? ACTION_DOWN : ACTION_UP;
bool repeat = event->repeat;
bool shift = event->keysym.mod & (KMOD_LSHIFT | KMOD_RSHIFT);
switch (keycode) {
case SDLK_h:
if (control && ctrl && !meta && !shift && !repeat) {
action_home(input_manager->controller, action);
action_home(controller, action);
}
return;
case SDLK_b: // fall-through
case SDLK_BACKSPACE:
if (control && ctrl && !meta && !shift && !repeat) {
action_back(input_manager->controller, action);
action_back(controller, action);
}
return;
case SDLK_s:
if (control && ctrl && !meta && !shift && !repeat) {
action_app_switch(input_manager->controller, action);
action_app_switch(controller, action);
}
return;
case SDLK_m:
if (control && ctrl && !meta && !shift && !repeat) {
action_menu(input_manager->controller, action);
action_menu(controller, action);
}
return;
case SDLK_p:
if (control && ctrl && !meta && !shift && !repeat) {
action_power(input_manager->controller, action);
action_power(controller, action);
}
return;
case SDLK_o:
if (control && ctrl && !meta && event->type == SDL_KEYDOWN) {
if (control && ctrl && !meta && down) {
enum screen_power_mode mode = shift
? SCREEN_POWER_MODE_NORMAL
: SCREEN_POWER_MODE_OFF;
set_screen_power_mode(input_manager->controller, mode);
set_screen_power_mode(controller, mode);
}
return;
case SDLK_DOWN:
@ -290,7 +296,7 @@ input_manager_process_key(struct input_manager *input_manager,
if (control && ctrl && !meta && !shift) {
#endif
// forward repeated events
action_volume_down(input_manager->controller, action);
action_volume_down(controller, action);
}
return;
case SDLK_UP:
@ -300,58 +306,51 @@ input_manager_process_key(struct input_manager *input_manager,
if (control && ctrl && !meta && !shift) {
#endif
// forward repeated events
action_volume_up(input_manager->controller, action);
action_volume_up(controller, action);
}
return;
case SDLK_c:
if (control && ctrl && !meta && !shift && !repeat
&& event->type == SDL_KEYDOWN) {
request_device_clipboard(input_manager->controller);
if (control && ctrl && !meta && !shift && !repeat && down) {
request_device_clipboard(controller);
}
return;
case SDLK_v:
if (control && ctrl && !meta && !repeat
&& event->type == SDL_KEYDOWN) {
if (control && ctrl && !meta && !repeat && down) {
if (shift) {
// store the text in the device clipboard
set_device_clipboard(input_manager->controller);
set_device_clipboard(controller);
} else {
// inject the text as input events
clipboard_paste(input_manager->controller);
clipboard_paste(controller);
}
}
return;
case SDLK_f:
if (ctrl && !meta && !shift && !repeat
&& event->type == SDL_KEYDOWN) {
if (ctrl && !meta && !shift && !repeat && down) {
screen_switch_fullscreen(input_manager->screen);
}
return;
case SDLK_x:
if (ctrl && !meta && !shift && !repeat
&& event->type == SDL_KEYDOWN) {
if (ctrl && !meta && !shift && !repeat && down) {
screen_resize_to_fit(input_manager->screen);
}
return;
case SDLK_g:
if (ctrl && !meta && !shift && !repeat
&& event->type == SDL_KEYDOWN) {
if (ctrl && !meta && !shift && !repeat && down) {
screen_resize_to_pixel_perfect(input_manager->screen);
}
return;
case SDLK_i:
if (ctrl && !meta && !shift && !repeat
&& event->type == SDL_KEYDOWN) {
if (ctrl && !meta && !shift && !repeat && down) {
switch_fps_counter_state(input_manager->video_buffer);
}
return;
case SDLK_n:
if (control && ctrl && !meta
&& !repeat && event->type == SDL_KEYDOWN) {
if (control && ctrl && !meta && !repeat && down) {
if (shift) {
collapse_notification_panel(input_manager->controller);
collapse_notification_panel(controller);
} else {
expand_notification_panel(input_manager->controller);
expand_notification_panel(controller);
}
}
return;
@ -366,7 +365,7 @@ input_manager_process_key(struct input_manager *input_manager,
struct control_msg msg;
if (input_key_from_sdl_to_android(event, &msg)) {
if (!controller_push_msg(input_manager->controller, &msg)) {
if (!controller_push_msg(controller, &msg)) {
LOGW("Cannot request 'inject keycode'");
}
}