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[UI] Android ImGui touch and mouse input

This commit is contained in:
Triang3l 2022-07-14 21:13:40 +03:00
parent 3a065c35f0
commit 7b8281aee0
11 changed files with 467 additions and 23 deletions
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46
android/android_studio_project/app/src/main/java/jp/xenia/emulator/WindowedAppActivity.java
View File

@ -1,8 +1,10 @@
package jp.xenia.emulator;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.res.AssetManager;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.View;
@ -16,10 +18,7 @@ public abstract class WindowedAppActivity extends Activity {
System.loadLibrary("xenia-app");
}
private final WindowSurfaceOnLayoutChangeListener mWindowSurfaceOnLayoutChangeListener =
new WindowSurfaceOnLayoutChangeListener();
private final WindowSurfaceHolderCallback mWindowSurfaceHolderCallback =
new WindowSurfaceHolderCallback();
private final WindowSurfaceListener mWindowSurfaceListener = new WindowSurfaceListener();
// May be 0 while destroying (mainly while the superclass is).
private long mAppContext = 0;
@ -35,6 +34,8 @@ public abstract class WindowedAppActivity extends Activity {
private native void onWindowSurfaceLayoutChange(
long appContext, int left, int top, int right, int bottom);
private native boolean onWindowSurfaceMotionEvent(long appContext, MotionEvent event);
private native void onWindowSurfaceChanged(long appContext, Surface windowSurface);
private native void paintWindow(long appContext, boolean forcePaint);
@ -48,8 +49,10 @@ public abstract class WindowedAppActivity extends Activity {
// Detach from the old surface.
if (mWindowSurfaceView != null) {
mWindowSurfaceView.getHolder().removeCallback(mWindowSurfaceHolderCallback);
mWindowSurfaceView.removeOnLayoutChangeListener(mWindowSurfaceOnLayoutChangeListener);
mWindowSurfaceView.getHolder().removeCallback(mWindowSurfaceListener);
mWindowSurfaceView.setOnTouchListener(null);
mWindowSurfaceView.setOnGenericMotionListener(null);
mWindowSurfaceView.removeOnLayoutChangeListener(mWindowSurfaceListener);
mWindowSurfaceView = null;
if (mAppContext != 0) {
onWindowSurfaceChanged(mAppContext, null);
@ -61,12 +64,12 @@ public abstract class WindowedAppActivity extends Activity {
}
mWindowSurfaceView = windowSurfaceView;
// The native window code assumes that, when the surface exists, it covers the entire
// window.
// FIXME(Triang3l): This doesn't work if the layout has already been performed.
mWindowSurfaceView.addOnLayoutChangeListener(mWindowSurfaceOnLayoutChangeListener);
mWindowSurfaceView.addOnLayoutChangeListener(mWindowSurfaceListener);
mWindowSurfaceView.setOnGenericMotionListener(mWindowSurfaceListener);
mWindowSurfaceView.setOnTouchListener(mWindowSurfaceListener);
final SurfaceHolder windowSurfaceHolder = mWindowSurfaceView.getHolder();
windowSurfaceHolder.addCallback(mWindowSurfaceHolderCallback);
windowSurfaceHolder.addCallback(mWindowSurfaceListener);
// If setting after the creation of the surface.
if (mAppContext != 0) {
final Surface windowSurface = windowSurfaceHolder.getSurface();
@ -115,7 +118,11 @@ public abstract class WindowedAppActivity extends Activity {
super.onDestroy();
}
private class WindowSurfaceOnLayoutChangeListener implements View.OnLayoutChangeListener {
private class WindowSurfaceListener implements
View.OnGenericMotionListener,
View.OnLayoutChangeListener,
View.OnTouchListener,
SurfaceHolder.Callback2 {
@Override
public void onLayoutChange(
final View v, final int left, final int top, final int right, final int bottom,
@ -124,9 +131,24 @@ public abstract class WindowedAppActivity extends Activity {
onWindowSurfaceLayoutChange(mAppContext, left, top, right, bottom);
}
}
@Override
public boolean onGenericMotion(View v, MotionEvent event) {
if (mAppContext == 0) {
return false;
}
return onWindowSurfaceMotionEvent(mAppContext, event);
}
@SuppressLint("ClickableViewAccessibility")
@Override
public boolean onTouch(View v, MotionEvent event) {
if (mAppContext == 0) {
return false;
}
return onWindowSurfaceMotionEvent(mAppContext, event);
}
private class WindowSurfaceHolderCallback implements SurfaceHolder.Callback2 {
@Override
public void surfaceCreated(final SurfaceHolder holder) {
if (mAppContext == 0) {

80
src/xenia/ui/imgui_drawer.cc
View File

@ -43,7 +43,8 @@ ImGuiDrawer::~ImGuiDrawer() {
window_->RemoveInputListener(this);
if (internal_state_) {
ImGui::SetCurrentContext(internal_state_);
if (ImGui::IsAnyMouseDown()) {
if (touch_pointer_id_ == TouchEvent::kPointerIDNone &&
ImGui::IsAnyMouseDown()) {
window_->ReleaseMouse();
}
}
@ -213,6 +214,9 @@ void ImGuiDrawer::Initialize() {
frame_time_tick_frequency_ = double(Clock::QueryHostTickFrequency());
last_frame_time_ticks_ = Clock::QueryHostTickCount();
touch_pointer_id_ = TouchEvent::kPointerIDNone;
reset_mouse_position_after_next_frame_ = false;
}
void ImGuiDrawer::SetupFontTexture() {
@ -310,6 +314,11 @@ void ImGuiDrawer::Draw(UIDrawContext& ui_draw_context) {
RenderDrawLists(draw_data, ui_draw_context);
}
if (reset_mouse_position_after_next_frame_) {
reset_mouse_position_after_next_frame_ = false;
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
}
if (dialogs_.empty()) {
// All dialogs have removed themselves during the draw, detach.
presenter_->RemoveUIDrawerFromUIThread(this);
@ -382,7 +391,7 @@ void ImGuiDrawer::OnKeyChar(KeyEvent& e) {
}
void ImGuiDrawer::OnMouseDown(MouseEvent& e) {
UpdateMousePosition(e);
SwitchToPhysicalMouseAndUpdateMousePosition(e);
auto& io = GetIO();
int button = -1;
switch (e.button()) {
@ -409,10 +418,12 @@ void ImGuiDrawer::OnMouseDown(MouseEvent& e) {
}
}
void ImGuiDrawer::OnMouseMove(MouseEvent& e) { UpdateMousePosition(e); }
void ImGuiDrawer::OnMouseMove(MouseEvent& e) {
SwitchToPhysicalMouseAndUpdateMousePosition(e);
}
void ImGuiDrawer::OnMouseUp(MouseEvent& e) {
UpdateMousePosition(e);
SwitchToPhysicalMouseAndUpdateMousePosition(e);
auto& io = GetIO();
int button = -1;
switch (e.button()) {
@ -440,14 +451,48 @@ void ImGuiDrawer::OnMouseUp(MouseEvent& e) {
}
void ImGuiDrawer::OnMouseWheel(MouseEvent& e) {
UpdateMousePosition(e);
SwitchToPhysicalMouseAndUpdateMousePosition(e);
auto& io = GetIO();
io.MouseWheel += float(e.scroll_y()) / float(MouseEvent::kScrollPerDetent);
}
void ImGuiDrawer::OnTouchEvent(TouchEvent& e) {
auto& io = GetIO();
TouchEvent::Action action = e.action();
uint32_t pointer_id = e.pointer_id();
if (action == TouchEvent::Action::kDown) {
// The latest pointer needs to be controlling the ImGui mouse.
if (touch_pointer_id_ == TouchEvent::kPointerIDNone) {
// Switching from the mouse to touch input.
if (ImGui::IsAnyMouseDown()) {
std::memset(io.MouseDown, 0, sizeof(io.MouseDown));
window_->ReleaseMouse();
}
}
touch_pointer_id_ = pointer_id;
} else {
if (pointer_id != touch_pointer_id_) {
return;
}
}
UpdateMousePosition(e.x(), e.y());
if (action == TouchEvent::Action::kUp ||
action == TouchEvent::Action::kCancel) {
io.MouseDown[0] = false;
touch_pointer_id_ = TouchEvent::kPointerIDNone;
// Make sure that after a touch, the ImGui mouse isn't hovering over
// anything.
reset_mouse_position_after_next_frame_ = true;
} else {
io.MouseDown[0] = true;
reset_mouse_position_after_next_frame_ = false;
}
}
void ImGuiDrawer::ClearInput() {
auto& io = GetIO();
if (ImGui::IsAnyMouseDown()) {
if (touch_pointer_id_ == TouchEvent::kPointerIDNone &&
ImGui::IsAnyMouseDown()) {
window_->ReleaseMouse();
}
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
@ -460,6 +505,8 @@ void ImGuiDrawer::ClearInput() {
io.KeySuper = false;
std::memset(io.KeysDown, 0, sizeof(io.KeysDown));
io.ClearInputCharacters();
touch_pointer_id_ = TouchEvent::kPointerIDNone;
reset_mouse_position_after_next_frame_ = false;
}
void ImGuiDrawer::OnKey(KeyEvent& e, bool is_down) {
@ -487,12 +534,27 @@ void ImGuiDrawer::OnKey(KeyEvent& e, bool is_down) {
}
}
void ImGuiDrawer::UpdateMousePosition(const MouseEvent& e) {
void ImGuiDrawer::UpdateMousePosition(float x, float y) {
auto& io = GetIO();
float physical_to_logical =
float(window_->GetMediumDpi()) / float(window_->GetDpi());
io.MousePos.x = e.x() * physical_to_logical;
io.MousePos.y = e.y() * physical_to_logical;
io.MousePos.x = x * physical_to_logical;
io.MousePos.y = y * physical_to_logical;
}
void ImGuiDrawer::SwitchToPhysicalMouseAndUpdateMousePosition(
const MouseEvent& e) {
if (touch_pointer_id_ != TouchEvent::kPointerIDNone) {
touch_pointer_id_ = TouchEvent::kPointerIDNone;
auto& io = GetIO();
std::memset(io.MouseDown, 0, sizeof(io.MouseDown));
// Nothing needs to be done regarding CaptureMouse and ReleaseMouse - all
// buttons as well as mouse capture have been released when switching to
// touch input, the mouse is never captured during touch input, and now
// resetting to no buttons down (therefore not capturing).
}
reset_mouse_position_after_next_frame_ = false;
UpdateMousePosition(float(e.x()), float(e.y()));
}
} // namespace ui

14
src/xenia/ui/imgui_drawer.h
View File

@ -59,6 +59,7 @@ class ImGuiDrawer : public WindowInputListener, public UIDrawer {
void OnMouseMove(MouseEvent& e) override;
void OnMouseUp(MouseEvent& e) override;
void OnMouseWheel(MouseEvent& e) override;
void OnTouchEvent(TouchEvent& e) override;
// For now, no need for OnDpiChanged because redrawing is done continuously.
private:
@ -70,7 +71,8 @@ class ImGuiDrawer : public WindowInputListener, public UIDrawer {
void ClearInput();
void OnKey(KeyEvent& e, bool is_down);
void UpdateMousePosition(const MouseEvent& e);
void UpdateMousePosition(float x, float y);
void SwitchToPhysicalMouseAndUpdateMousePosition(const MouseEvent& e);
Window* window_;
size_t z_order_;
@ -92,6 +94,16 @@ class ImGuiDrawer : public WindowInputListener, public UIDrawer {
// detaching the presenter.
std::unique_ptr<ImmediateTexture> font_texture_;
// If there's an active pointer, the ImGui mouse is controlled by this touch.
// If it's TouchEvent::kPointerIDNone, the ImGui mouse is controlled by the
// mouse.
uint32_t touch_pointer_id_ = TouchEvent::kPointerIDNone;
// Whether after the next frame (since the mouse up event needs to be handled
// with the correct mouse position still), the ImGui mouse position should be
// reset (for instance, after releasing a touch), so it's not hovering over
// anything.
bool reset_mouse_position_after_next_frame_ = false;
double frame_time_tick_frequency_;
uint64_t last_frame_time_ticks_;
};

41
src/xenia/ui/ui_event.h
View File

@ -10,6 +10,7 @@
#ifndef XENIA_UI_UI_EVENT_H_
#define XENIA_UI_UI_EVENT_H_
#include <cstdint>
#include <filesystem>
#include "xenia/ui/virtual_key.h"
@ -156,6 +157,46 @@ class MouseEvent : public UIEvent {
int32_t scroll_y_ = 0;
};
class TouchEvent : public UIEvent {
public:
enum class Action {
kDown,
kUp,
// Should be treated as an up event, but without performing the usual action
// for releasing.
kCancel,
kMove,
};
// Can be used by event listeners as the value for when there's no current
// pointer, for example.
static constexpr uint32_t kPointerIDNone = UINT32_MAX;
explicit TouchEvent(Window* target, uint32_t pointer_id, Action action,
float x, float y)
: UIEvent(target),
pointer_id_(pointer_id),
action_(action),
x_(x),
y_(y) {}
bool is_handled() const { return handled_; }
void set_handled(bool value) { handled_ = value; }
uint32_t pointer_id() { return pointer_id_; }
Action action() const { return action_; }
// Can be outside the boundaries of the surface.
float x() const { return x_; }
float y() const { return y_; }
private:
bool handled_ = false;
uint32_t pointer_id_;
Action action_;
float x_;
float y_;
};
} // namespace ui
} // namespace xe

13
src/xenia/ui/window.cc
View File

@ -645,6 +645,19 @@ void Window::OnMouseWheel(MouseEvent& e,
}
}
void Window::OnTouchEvent(TouchEvent& e,
WindowDestructionReceiver& destruction_receiver) {
PropagateEventThroughInputListeners(
[&e](auto listener) {
listener->OnTouchEvent(e);
return e.is_handled();
},
destruction_receiver);
if (destruction_receiver.IsWindowDestroyed()) {
return;
}
}
void Window::SendEventToListeners(
std::function<void(WindowListener*)> fn,
WindowDestructionReceiver& destruction_receiver) {

3
src/xenia/ui/window.h
View File

@ -597,6 +597,9 @@ class Window {
void OnMouseWheel(MouseEvent& e,
WindowDestructionReceiver& destruction_receiver);
void OnTouchEvent(TouchEvent& e,
WindowDestructionReceiver& destruction_receiver);
private:
struct ListenerIterationContext {
explicit ListenerIterationContext(ListenerIterationContext* outer_context,

184
src/xenia/ui/window_android.cc
View File

@ -9,10 +9,16 @@
#include "xenia/ui/window_android.h"
#include <android/input.h>
#include <jni.h>
#include <algorithm>
#include <cstdint>
#include <memory>
#include <utility>
#include "xenia/base/assert.h"
#include "xenia/base/logging.h"
#include "xenia/base/math.h"
#include "xenia/ui/surface_android.h"
#include "xenia/ui/windowed_app_context_android.h"
@ -55,6 +61,181 @@ void AndroidWindow::OnActivitySurfaceLayoutChange() {
}
}
bool AndroidWindow::OnActivitySurfaceMotionEvent(jobject event) {
auto& android_app_context =
static_cast<const AndroidWindowedAppContext&>(app_context());
JNIEnv* jni_env = android_app_context.ui_thread_jni_env();
const AndroidWindowedAppContext::JniIDs& jni_ids =
android_app_context.jni_ids();
int32_t source =
jni_env->CallIntMethod(event, jni_ids.motion_event_get_source);
switch (source) {
case AINPUT_SOURCE_TOUCHSCREEN: {
// Returning true for all touch events regardless of whether they have
// been handled to keep receiving touch events for the pointers in the
// event (if returning false for a down event, no more events will be sent
// for the pointers in it), and also because there are multiple pointers
// in a single event, and different handler invocations may result in
// different is_handled.
WindowDestructionReceiver destruction_receiver(this);
int32_t action_and_pointer_index =
jni_env->CallIntMethod(event, jni_ids.motion_event_get_action);
int32_t action = action_and_pointer_index & AMOTION_EVENT_ACTION_MASK;
// For pointer ACTION_POINTER_DOWN and ACTION_POINTER_UP.
int32_t pointer_index = (action_and_pointer_index &
AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >>
AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
if (action == AMOTION_EVENT_ACTION_POINTER_DOWN ||
action == AMOTION_EVENT_ACTION_POINTER_UP) {
int32_t touch_pointer_index =
(action_and_pointer_index &
AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >>
AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
TouchEvent e(
this,
jni_env->CallIntMethod(event, jni_ids.motion_event_get_pointer_id,
touch_pointer_index),
(action == AMOTION_EVENT_ACTION_POINTER_DOWN)
? TouchEvent::Action::kDown
: TouchEvent::Action::kUp,
jni_env->CallFloatMethod(event, jni_ids.motion_event_get_x,
pointer_index),
jni_env->CallFloatMethod(event, jni_ids.motion_event_get_y,
pointer_index));
OnTouchEvent(e, destruction_receiver);
if (destruction_receiver.IsWindowDestroyed()) {
return true;
}
} else {
TouchEvent::Action touch_event_action;
switch (action) {
case AMOTION_EVENT_ACTION_DOWN:
touch_event_action = TouchEvent::Action::kDown;
break;
case AMOTION_EVENT_ACTION_UP:
touch_event_action = TouchEvent::Action::kUp;
break;
case AMOTION_EVENT_ACTION_MOVE:
touch_event_action = TouchEvent::Action::kMove;
break;
case AMOTION_EVENT_ACTION_CANCEL:
touch_event_action = TouchEvent::Action::kCancel;
break;
default:
return true;
}
int32_t touch_pointer_count = jni_env->CallIntMethod(
event, jni_ids.motion_event_get_pointer_count);
for (int32_t i = 0; i < touch_pointer_count; ++i) {
TouchEvent e(
this,
jni_env->CallIntMethod(event, jni_ids.motion_event_get_pointer_id,
i),
touch_event_action,
jni_env->CallFloatMethod(event, jni_ids.motion_event_get_x, i),
jni_env->CallFloatMethod(event, jni_ids.motion_event_get_y, i));
OnTouchEvent(e, destruction_receiver);
if (destruction_receiver.IsWindowDestroyed()) {
return true;
}
}
}
return true;
} break;
case AINPUT_SOURCE_MOUSE: {
WindowDestructionReceiver destruction_receiver(this);
// X and Y can be outside the View (have negative coordinates, or beyond
// the size of the element), and not only for ACTION_HOVER_EXIT (it's
// predeced by ACTION_HOVER_MOVE, at least on Android API level 30, also
// with out-of-bounds coordinates), when moving the mouse outside the
// View, or when starting moving the mouse when the pointer was previously
// outside the View in some cases.
int32_t mouse_x = int32_t(
std::min(float(GetActualPhysicalWidth()),
std::max(0.0f, jni_env->CallFloatMethod(
event, jni_ids.motion_event_get_x, 0))) +
0.5f);
int32_t mouse_y = int32_t(
std::min(float(GetActualPhysicalHeight()),
std::max(0.0f, jni_env->CallFloatMethod(
event, jni_ids.motion_event_get_y, 0))) +
0.5f);
static const MouseEvent::Button kMouseEventButtons[] = {
MouseEvent::Button::kLeft, MouseEvent::Button::kRight,
MouseEvent::Button::kMiddle, MouseEvent::Button::kX1,
MouseEvent::Button::kX2,
};
static constexpr uint32_t kUsedMouseButtonMask =
(UINT32_C(1) << xe::countof(kMouseEventButtons)) - 1;
uint32_t new_mouse_button_state = uint32_t(
jni_env->CallIntMethod(event, jni_ids.motion_event_get_button_state));
// OnMouseUp.
uint32_t mouse_buttons_remaining =
mouse_button_state_ & ~new_mouse_button_state & kUsedMouseButtonMask;
uint32_t mouse_button_index;
while (
xe::bit_scan_forward(mouse_buttons_remaining, &mouse_button_index)) {
mouse_buttons_remaining &= ~(UINT32_C(1) << mouse_button_index);
MouseEvent e(this, kMouseEventButtons[mouse_button_index], mouse_x,
mouse_y);
OnMouseUp(e, destruction_receiver);
if (destruction_receiver.IsWindowDestroyed()) {
return true;
}
}
// Generic OnMouseMove regardless of the action since any event can
// provide new coordinates.
{
MouseEvent e(this, MouseEvent::Button::kNone, mouse_x, mouse_y);
OnMouseMove(e, destruction_receiver);
if (destruction_receiver.IsWindowDestroyed()) {
return true;
}
}
// OnMouseWheel.
// The axis value may be outside -1...1 if multiple scrolls have occurred
// quickly.
int32_t scroll_x = int32_t(
jni_env->CallFloatMethod(event, jni_ids.motion_event_get_axis_value,
AMOTION_EVENT_AXIS_HSCROLL, 0) *
float(MouseEvent::kScrollPerDetent));
int32_t scroll_y = int32_t(
jni_env->CallFloatMethod(event, jni_ids.motion_event_get_axis_value,
AMOTION_EVENT_AXIS_VSCROLL, 0) *
float(MouseEvent::kScrollPerDetent));
if (scroll_x || scroll_y) {
MouseEvent e(this, MouseEvent::Button::kNone, mouse_x, mouse_y,
scroll_x, scroll_y);
OnMouseWheel(e, destruction_receiver);
if (destruction_receiver.IsWindowDestroyed()) {
return true;
}
}
// OnMouseDown.
mouse_buttons_remaining =
new_mouse_button_state & ~mouse_button_state_ & kUsedMouseButtonMask;
while (
xe::bit_scan_forward(mouse_buttons_remaining, &mouse_button_index)) {
mouse_buttons_remaining &= ~(UINT32_C(1) << mouse_button_index);
MouseEvent e(this, kMouseEventButtons[mouse_button_index], mouse_x,
mouse_y);
OnMouseDown(e, destruction_receiver);
if (destruction_receiver.IsWindowDestroyed()) {
return true;
}
}
// Update the button state for state differences.
mouse_button_state_ = new_mouse_button_state;
return true;
} break;
}
return false;
}
uint32_t AndroidWindow::GetLatestDpiImpl() const {
auto& android_app_context =
static_cast<const AndroidWindowedAppContext&>(app_context());
@ -62,6 +243,9 @@ uint32_t AndroidWindow::GetLatestDpiImpl() const {
}
bool AndroidWindow::OpenImpl() {
// Reset the input.
mouse_button_state_ = 0;
// The window is a proxy between the main activity and Xenia, so there can be
// only one open window for an activity.
auto& android_app_context =

6
src/xenia/ui/window_android.h
View File

@ -10,6 +10,8 @@
#ifndef XENIA_UI_WINDOW_ANDROID_H_
#define XENIA_UI_WINDOW_ANDROID_H_
#include <jni.h>
#include "xenia/ui/menu_item.h"
#include "xenia/ui/window.h"
@ -30,6 +32,7 @@ class AndroidWindow : public Window {
uint32_t GetMediumDpi() const override { return 160; }
void OnActivitySurfaceLayoutChange();
bool OnActivitySurfaceMotionEvent(jobject event);
void OnActivitySurfaceChanged() { OnSurfaceChanged(true); }
void PaintActivitySurface(bool force_paint) { OnPaint(force_paint); }
@ -42,6 +45,9 @@ class AndroidWindow : public Window {
std::unique_ptr<Surface> CreateSurfaceImpl(
Surface::TypeFlags allowed_types) override;
void RequestPaintImpl() override;
private:
uint32_t mouse_button_state_ = 0;
};
// Dummy for the menu item - menus are controlled by the layout.

2
src/xenia/ui/window_listener.h
View File

@ -48,6 +48,8 @@ class WindowInputListener {
virtual void OnMouseMove(MouseEvent& e) {}
virtual void OnMouseUp(MouseEvent& e) {}
virtual void OnMouseWheel(MouseEvent& e) {}
virtual void OnTouchEvent(TouchEvent& e) {}
};
} // namespace ui

77
src/xenia/ui/windowed_app_context_android.cc
View File

@ -20,6 +20,7 @@
#include <unistd.h>
#include <array>
#include <cstdint>
#include <cstring>
#include "xenia/base/assert.h"
#include "xenia/base/logging.h"
@ -130,6 +131,12 @@ void AndroidWindowedAppContext::JniActivityOnWindowSurfaceLayoutChange(
}
}
bool AndroidWindowedAppContext::JniActivityOnWindowSurfaceMotionEvent(
jobject event) {
return activity_window_ &&
activity_window_->OnActivitySurfaceMotionEvent(event);
}
void AndroidWindowedAppContext::JniActivityOnWindowSurfaceChanged(
jobject window_surface_object) {
// Detach from the old surface.
@ -250,6 +257,62 @@ bool AndroidWindowedAppContext::Initialize(JNIEnv* ui_thread_jni_env,
android_base_initialized_ = true;
ui_thread_jni_env_->DeleteLocalRef(application_context_init_ref);
// Initialize common windowed app JNI IDs.
{
jclass motion_event_class_local_ref =
ui_thread_jni_env_->FindClass("android/view/MotionEvent");
if (!motion_event_class_local_ref) {
XELOGE(
"AndroidWindowedAppContext: Failed to find the motion event class");
Shutdown();
return false;
}
motion_event_class_ =
reinterpret_cast<jclass>(ui_thread_jni_env_->NewGlobalRef(
reinterpret_cast<jobject>(motion_event_class_local_ref)));
ui_thread_jni_env_->DeleteLocalRef(
reinterpret_cast<jobject>(motion_event_class_local_ref));
}
if (!motion_event_class_) {
XELOGE(
"AndroidWindowedAppContext: Failed to create a global reference to the "
"motion event class");
Shutdown();
return false;
}
bool motion_event_ids_obtained = true;
motion_event_ids_obtained &=
(jni_ids_.motion_event_get_action = ui_thread_jni_env_->GetMethodID(
motion_event_class_, "getAction", "()I")) != nullptr;
motion_event_ids_obtained &=
(jni_ids_.motion_event_get_axis_value = ui_thread_jni_env_->GetMethodID(
motion_event_class_, "getAxisValue", "(II)F")) != nullptr;
motion_event_ids_obtained &=
(jni_ids_.motion_event_get_button_state = ui_thread_jni_env_->GetMethodID(
motion_event_class_, "getButtonState", "()I")) != nullptr;
motion_event_ids_obtained &=
(jni_ids_.motion_event_get_pointer_id = ui_thread_jni_env_->GetMethodID(
motion_event_class_, "getPointerId", "(I)I")) != nullptr;
motion_event_ids_obtained &=
(jni_ids_.motion_event_get_pointer_count =
ui_thread_jni_env_->GetMethodID(
motion_event_class_, "getPointerCount", "()I")) != nullptr;
motion_event_ids_obtained &=
(jni_ids_.motion_event_get_source = ui_thread_jni_env_->GetMethodID(
motion_event_class_, "getSource", "()I")) != nullptr;
motion_event_ids_obtained &=
(jni_ids_.motion_event_get_x = ui_thread_jni_env_->GetMethodID(
motion_event_class_, "getX", "(I)F")) != nullptr;
motion_event_ids_obtained &=
(jni_ids_.motion_event_get_y = ui_thread_jni_env_->GetMethodID(
motion_event_class_, "getY", "(I)F")) != nullptr;
if (!motion_event_ids_obtained) {
XELOGE(
"AndroidWindowedAppContext: Failed to get the motion event class IDs");
Shutdown();
return false;
}
// Initialize interfacing with the WindowedAppActivity.
activity_ = ui_thread_jni_env_->NewGlobalRef(activity);
if (!activity_) {
@ -343,6 +406,12 @@ void AndroidWindowedAppContext::Shutdown() {
activity_ = nullptr;
}
std::memset(&jni_ids_, 0, sizeof(jni_ids_));
if (motion_event_class_) {
ui_thread_jni_env_->DeleteGlobalRef(motion_event_class_);
motion_event_class_ = nullptr;
}
if (android_base_initialized_) {
xe::ShutdownAndroidAppFromMainThread();
android_base_initialized_ = false;
@ -495,6 +564,14 @@ Java_jp_xenia_emulator_WindowedAppActivity_onWindowSurfaceLayoutChange(
->JniActivityOnWindowSurfaceLayoutChange(left, top, right, bottom);
}
JNIEXPORT jboolean JNICALL
Java_jp_xenia_emulator_WindowedAppActivity_onWindowSurfaceMotionEvent(
JNIEnv* jni_env, jobject activity, jlong app_context_ptr, jobject event) {
return jboolean(
reinterpret_cast<xe::ui::AndroidWindowedAppContext*>(app_context_ptr)
->JniActivityOnWindowSurfaceMotionEvent(event));
}
JNIEXPORT void JNICALL
Java_jp_xenia_emulator_WindowedAppActivity_onWindowSurfaceChanged(
JNIEnv* jni_env, jobject activity, jlong app_context_ptr,

22
src/xenia/ui/windowed_app_context_android.h
View File

@ -28,17 +28,35 @@ class WindowedApp;
class AndroidWindowedAppContext final : public WindowedAppContext {
public:
// Precached JNI references and IDs that may be used for windowed app purposes
// by external code.
struct JniIDs {
// android.view.MotionEvent.
jmethodID motion_event_get_action;
jmethodID motion_event_get_axis_value;
jmethodID motion_event_get_button_state;
jmethodID motion_event_get_pointer_count;
jmethodID motion_event_get_pointer_id;
jmethodID motion_event_get_source;
jmethodID motion_event_get_x;
jmethodID motion_event_get_y;
};
WindowedApp* app() const { return app_.get(); }
void NotifyUILoopOfPendingFunctions() override;
void PlatformQuitFromUIThread() override;
JNIEnv* ui_thread_jni_env() const { return ui_thread_jni_env_; }
uint32_t GetPixelDensity() const {
return configuration_ ? uint32_t(AConfiguration_getDensity(configuration_))
: 160;
}
const JniIDs& jni_ids() const { return jni_ids_; }
int32_t window_surface_layout_left() const {
return window_surface_layout_left_;
}
@ -70,6 +88,7 @@ class AndroidWindowedAppContext final : public WindowedAppContext {
void JniActivityOnDestroy();
void JniActivityOnWindowSurfaceLayoutChange(jint left, jint top, jint right,
jint bottom);
bool JniActivityOnWindowSurfaceMotionEvent(jobject event);
void JniActivityOnWindowSurfaceChanged(jobject window_surface_object);
void JniActivityPaintWindow(bool force_paint);
@ -117,6 +136,9 @@ class AndroidWindowedAppContext final : public WindowedAppContext {
bool android_base_initialized_ = false;
jclass motion_event_class_ = nullptr;
JniIDs jni_ids_ = {};
jobject activity_ = nullptr;
jmethodID activity_method_finish_ = nullptr;
jmethodID activity_method_post_invalidate_window_surface_ = nullptr;