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Hook up the back and forward buttons to history traversal in Magic Leap Servo2D

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This commit is contained in:
Alan Jeffrey 2018-10-30 12:05:19 -05:00
parent 4ead81717a
commit c8fa64b93a
3 changed files with 67 additions and 25 deletions
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30
support/magicleap/Servo2D/code/src/Servo2D.cpp
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@ -6,6 +6,7 @@
#include <lumin/node/RootNode.h>
#include <lumin/node/QuadNode.h>
#include <lumin/ui/Cursor.h>
#include <lumin/ui/node/UiButton.h>
#include <ml_logging.h>
#include <scenesGen.h>
#include <SceneDescriptor.h>
@ -36,11 +37,12 @@ void logger(MLLogLevel lvl, char* msg) {
// The functions Servo provides for hooking up to the ML.
// For the moment, this doesn't handle input events.
extern "C" ServoInstance init_servo(EGLContext, EGLSurface, EGLDisplay, MLLogger,
extern "C" ServoInstance* init_servo(EGLContext, EGLSurface, EGLDisplay, MLLogger,
const char* url, int width, int height, float hidpi);
extern "C" void heartbeat_servo(ServoInstance);
extern "C" void cursor_servo(ServoInstance, float x, float y, bool triggered);
extern "C" void discard_servo(ServoInstance);
extern "C" void heartbeat_servo(ServoInstance*);
extern "C" void cursor_servo(ServoInstance*, float x, float y, bool triggered);
extern "C" void traverse_servo(ServoInstance*, int delta);
extern "C" void discard_servo(ServoInstance*);
// Create a Servo2D instance
Servo2D::Servo2D() {
@ -125,6 +127,26 @@ int Servo2D::init() {
return 1;
}
// Add a callback to the back button
std::string back_button_id = Servo2D_exportedNodes::backButton;
lumin::ui::UiButton* back_button = lumin::ui::UiButton::CastFrom(prism_->findNode(back_button_id, root_node));
if (!back_button) {
ML_LOG(Error, "Servo2D Failed to get back button");
abort();
return 1;
}
back_button->onActivateSub(std::bind(traverse_servo, servo_, -1));
// Add a callback to the forward button
std::string fwd_button_id = Servo2D_exportedNodes::fwdButton;
lumin::ui::UiButton* fwd_button = lumin::ui::UiButton::CastFrom(prism_->findNode(fwd_button_id, root_node));
if (!fwd_button) {
ML_LOG(Error, "Servo2D Failed to get forward button");
abort();
return 1;
}
fwd_button->onActivateSub(std::bind(traverse_servo, servo_, +1));
return 0;
}