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GUI: view enter, exit callbacks. (#326)

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あく 2021-02-04 15:05:46 +03:00 committed by GitHub
parent cb4fb8e4ae
commit 2187dc7117
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6 changed files with 72 additions and 6 deletions
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20
applications/gui/view.c
View file

@ -40,6 +40,16 @@ void view_set_next_callback(View* view, ViewNavigationCallback callback) {
view->next_callback = callback;
}
void view_set_enter_callback(View* view, ViewCallback callback) {
furi_assert(view);
view->enter_callback = callback;
}
void view_set_exit_callback(View* view, ViewCallback callback) {
furi_assert(view);
view->exit_callback = callback;
}
void view_set_context(View* view, void* context) {
furi_assert(view);
furi_assert(context);
@ -143,3 +153,13 @@ uint32_t view_next(View* view) {
return VIEW_IGNORE;
}
}
void view_enter(View* view) {
furi_assert(view);
if(view->enter_callback) view->enter_callback(view->context);
}
void view_exit(View* view) {
furi_assert(view);
if(view->exit_callback) view->exit_callback(view->context);
}

18
applications/gui/view.h
View file

@ -42,6 +42,12 @@ typedef bool (*ViewInputCallback)(InputEvent* event, void* context);
*/
typedef uint32_t (*ViewNavigationCallback)(void* context);
/* View callback
* @param context, pointer to context
* @warning called from GUI thread
*/
typedef void (*ViewCallback)(void* context);
/* View model types */
typedef enum {
/* Model is not allocated */
@ -92,6 +98,18 @@ void view_set_previous_callback(View* view, ViewNavigationCallback callback);
*/
void view_set_next_callback(View* view, ViewNavigationCallback callback);
/* Set Enter callback
* @param view, pointer to View
* @param callback, callback
*/
void view_set_enter_callback(View* view, ViewCallback callback);
/* Set Exit callback
* @param view, pointer to View
* @param callback, callback
*/
void view_set_exit_callback(View* view, ViewCallback callback);
/* Set View Draw callback
* @param view, pointer to View
* @param context, context for callbacks

25
applications/gui/view_dispatcher.c
View file

@ -45,17 +45,14 @@ void view_dispatcher_add_view(ViewDispatcher* view_dispatcher, uint32_t view_id,
void view_dispatcher_switch_to_view(ViewDispatcher* view_dispatcher, uint32_t view_id) {
furi_assert(view_dispatcher);
if(view_id == VIEW_NONE) {
view_dispatcher->current_view = NULL;
view_port_enabled_set(view_dispatcher->view_port, false);
view_dispatcher_set_current_view(view_dispatcher, NULL);
} else if(view_id == VIEW_IGNORE) {
} else if(view_id == VIEW_DESTROY) {
view_dispatcher_free(view_dispatcher);
} else {
View** view_pp = ViewDict_get(view_dispatcher->views, view_id);
furi_check(view_pp != NULL);
view_dispatcher->current_view = *view_pp;
view_port_enabled_set(view_dispatcher->view_port, true);
view_port_update(view_dispatcher->view_port);
view_dispatcher_set_current_view(view_dispatcher, *view_pp);
}
}
@ -103,6 +100,24 @@ void view_dispatcher_input_callback(InputEvent* event, void* context) {
}
}
void view_dispatcher_set_current_view(ViewDispatcher* view_dispatcher, View* view) {
furi_assert(view_dispatcher);
// Dispatch view exit event
if(view_dispatcher->current_view) {
view_exit(view_dispatcher->current_view);
}
// Set current view
view_dispatcher->current_view = view;
// Dispatch view enter event
if(view_dispatcher->current_view) {
view_enter(view_dispatcher->current_view);
view_port_enabled_set(view_dispatcher->view_port, true);
view_port_update(view_dispatcher->view_port);
} else {
view_port_enabled_set(view_dispatcher->view_port, false);
}
}
void view_dispatcher_update(ViewDispatcher* view_dispatcher, View* view) {
furi_assert(view_dispatcher);
furi_assert(view);

3
applications/gui/view_dispatcher_i.h
View file

@ -20,5 +20,8 @@ void view_dispatcher_draw_callback(Canvas* canvas, void* context);
/* ViewPort Input Callback */
void view_dispatcher_input_callback(InputEvent* event, void* context);
/* Set current view, dispatches view enter and exit */
void view_dispatcher_set_current_view(ViewDispatcher* view_dispatcher, View* view);
/* View to ViewDispatcher update event */
void view_dispatcher_update(ViewDispatcher* view_dispatcher, View* view);

8
applications/gui/view_i.h
View file

@ -16,6 +16,8 @@ struct View {
ViewModelType model_type;
ViewNavigationCallback previous_callback;
ViewNavigationCallback next_callback;
ViewCallback enter_callback;
ViewCallback exit_callback;
void* model;
void* context;
};
@ -37,3 +39,9 @@ uint32_t view_previous(View* view);
/* Next Callback for View dispatcher */
uint32_t view_next(View* view);
/* Enter Callback for View dispatcher */
void view_enter(View* view);
/* Exit Callback for View dispatcher */
void view_exit(View* view);

4
applications/gui/view_port.h
View file

@ -51,7 +51,9 @@ uint8_t view_port_get_height(ViewPort* view_port);
/*
* Enable or disable view_port rendering.
* @param enabled.
* @param view_port - ViewPort instance
* @param enabled
* @warning automatically dispatches update event
*/
void view_port_enabled_set(ViewPort* view_port, bool enabled);
bool view_port_is_enabled(ViewPort* view_port);