implement PopupWindow using GtkPopover

meson.build

@@ -98,6 +98,7 @@ libtranslationlayer_so = shared_library('translation_layer_main', [
                                                                   	'src/api-impl-jni/widgets/android_widget_ImageButton.c',
                                                                   	'src/api-impl-jni/widgets/android_widget_ScrollView.c',
                                                                   	'src/api-impl-jni/widgets/android_widget_ImageView.c',
+                                                                  	'src/api-impl-jni/widgets/android_widget_PopupWindow.c',
                                                                   	'src/api-impl-jni/widgets/WrapperWidget.c',
                                                                   	'src/api-impl-jni/widgets/android_widget_TextView.c',
                                                                   	'src/api-impl-jni/widgets/android_widget_Progressbar.c',

src/api-impl-jni/generated_headers/android_widget_PopupWindow.h

@@ -0,0 +1,61 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class android_widget_PopupWindow */
+
+#ifndef _Included_android_widget_PopupWindow
+#define _Included_android_widget_PopupWindow
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     android_widget_PopupWindow
+ * Method:    native_constructor
+ * Signature: ()J
+ */
+JNIEXPORT jlong JNICALL Java_android_widget_PopupWindow_native_1constructor
+  (JNIEnv *, jobject);
+
+/*
+ * Class:     android_widget_PopupWindow
+ * Method:    native_setContentView
+ * Signature: (JJ)V
+ */
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_native_1setContentView
+  (JNIEnv *, jobject, jlong, jlong);
+
+/*
+ * Class:     android_widget_PopupWindow
+ * Method:    native_showAsDropDown
+ * Signature: (JJIII)V
+ */
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_native_1showAsDropDown
+  (JNIEnv *, jobject, jlong, jlong, jint, jint, jint);
+
+/*
+ * Class:     android_widget_PopupWindow
+ * Method:    setOnDismissListener
+ * Signature: (Landroid/widget/PopupWindow/OnDismissListener;)V
+ */
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_setOnDismissListener
+  (JNIEnv *, jobject, jobject);
+
+/*
+ * Class:     android_widget_PopupWindow
+ * Method:    setWidth
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_setWidth
+  (JNIEnv *, jobject, jint);
+
+/*
+ * Class:     android_widget_PopupWindow
+ * Method:    setHeight
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_setHeight
+  (JNIEnv *, jobject, jint);
+
+#ifdef __cplusplus
+}
+#endif
+#endif

src/api-impl-jni/widgets/android_widget_PopupWindow.c

@@ -0,0 +1,60 @@
+#include <gtk/gtk.h>
+
+#include "../defines.h"
+#include "../util.h"
+
+#include "WrapperWidget.h"
+
+#include "../generated_headers/android_widget_PopupWindow.h"
+
+JNIEXPORT jlong JNICALL Java_android_widget_PopupWindow_native_1constructor(JNIEnv *env, jobject this)
+{
+	GtkWidget *popover = gtk_popover_new();
+	gtk_widget_set_name(popover, "PopupWindow");
+	return _INTPTR(popover);
+}
+
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_native_1setContentView(JNIEnv *env, jobject this, jlong popover_ptr, jlong content_ptr)
+{
+	WrapperWidget *content = WRAPPER_WIDGET(gtk_widget_get_parent(GTK_WIDGET(_PTR(content_ptr))));
+	gtk_popover_set_child(GTK_POPOVER(_PTR(popover_ptr)), GTK_WIDGET(content));
+}
+
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_native_1showAsDropDown(JNIEnv *env, jobject this, jlong popover_ptr, jlong anchor_ptr, jint x, jint y, jint gravity)
+{
+	GtkPopover *popover = GTK_POPOVER(_PTR(popover_ptr));
+	WrapperWidget *anchor = WRAPPER_WIDGET(gtk_widget_get_parent(GTK_WIDGET(_PTR(anchor_ptr))));
+
+	gtk_widget_insert_before(GTK_WIDGET(popover), GTK_WIDGET(anchor), NULL);
+	gtk_popover_present(GTK_POPOVER(popover));
+	gtk_popover_popup(popover);
+}
+
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_setWidth(JNIEnv *env, jobject this, jint width)
+{
+	int height;
+	GtkWidget *popover = GTK_WIDGET(_PTR(_GET_LONG_FIELD(this, "popover")));
+	gtk_widget_get_size_request(popover, NULL, &height);
+	gtk_widget_set_size_request(popover, width, height);
+}
+
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_setHeight(JNIEnv *env, jobject this, jint height)
+{
+	int width;
+	GtkWidget *popover = GTK_WIDGET(_PTR(_GET_LONG_FIELD(this, "popover")));
+	gtk_widget_get_size_request(popover, &width, NULL);
+	gtk_widget_set_size_request(popover, width, height);
+}
+
+static void on_closed_cb(GtkPopover *popover, jobject listener)
+{
+	JNIEnv *env = get_jni_env();
+	jmethodID onDismiss = _METHOD(_CLASS(listener), "onDismiss", "()V");
+	(*env)->CallVoidMethod(env, listener, onDismiss);
+}
+
+JNIEXPORT void JNICALL Java_android_widget_PopupWindow_setOnDismissListener(JNIEnv *env, jobject this, jobject listener)
+{
+	GtkWidget *popover = GTK_WIDGET(_PTR(_GET_LONG_FIELD(this, "popover")));
+	g_signal_connect(popover, "closed", G_CALLBACK(on_closed_cb), _REF(listener));
+}

src/api-impl/android/widget/PopupWindow.java

@@ -1,6 +1,59 @@
 package android.widget;
 
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
+import android.view.View;
+
 public class PopupWindow {
-	
-	public interface OnDismissListener {}
+
+	public PopupWindow(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+		popover = native_constructor();
+	}
+
+	private View contentView;
+	private long popover;  // native pointer to GtkPopover
+
+	public interface OnDismissListener {
+		public void onDismiss();
+	}
+
+	protected native long native_constructor();
+	protected native void native_setContentView(long widget, long contentView);
+	protected native void native_showAsDropDown(long widget, long anchor, int xoff, int yoff, int gravity);
+
+	public void setBackgroundDrawable(Drawable background) {}
+
+	public void setInputMethodMode(int mode) {}
+
+	public boolean isShowing() {return false;}
+
+	public native void setOnDismissListener(OnDismissListener listener);
+
+	public void setFocusable(boolean focusable) {}
+
+	public Drawable getBackground() {return null;}
+
+	public void setContentView(View view) {
+		contentView = view;
+		native_setContentView(popover, view.widget);
+	}
+
+	public int getInputMethodMode() {return 0;}
+
+	public int getMaxAvailableHeight(View anchor, int yOffset) {return 500;}
+
+	public native void setWidth(int width);
+
+	public native void setHeight(int height);
+
+	public void setOutsideTouchable(boolean touchable) {}
+
+	public void setTouchInterceptor(View.OnTouchListener listener) {}
+
+	public void showAsDropDown(View anchor, int xoff, int yoff, int gravity) {
+		native_showAsDropDown(popover, anchor.widget, xoff, yoff, gravity);
+	}
+
+	public View getContentView() {return contentView;}
 }