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allocate transparent {WrapperWidget / JavaWidget} 0x0 and draw children in overflow area

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This prevents overlay widgets from blocking touch events.

Androids ViewGroup.dispatchTouchEvent() loops over all children and only breaks if an eventhandler returns true. Gtk on the other hand stops at the first sensitive child. Even if the eventhandler returned false.
This commit is contained in:
Julian Winkler
2024-05-06 06:35:47 +02:00
parent 9fcec8b64c
commit f82af6ecb7
5 changed files with 70 additions and 4 deletions
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22
src/api-impl-jni/widgets/WrapperWidget.c
View File

@@ -8,6 +8,7 @@
#include "../generated_headers/android_view_View.h"
#include "WrapperWidget.h"
#include "src/api-impl-jni/views/AndroidLayout.h"
G_DEFINE_TYPE(WrapperWidget, wrapper_widget, GTK_TYPE_WIDGET)
@@ -68,6 +69,10 @@ void wrapper_widget_measure(GtkWidget *widget, GtkOrientation orientation, int f
void wrapper_widget_allocate(GtkWidget *widget, int width, int height, int baseline)
{
WrapperWidget *wrapper = WRAPPER_WIDGET(widget);
if (!width && !height) {
width = wrapper->real_width;
height = wrapper->real_height;
}
GtkAllocation allocation = {
.x = 0,
.y = 0,
@@ -89,7 +94,21 @@ void wrapper_widget_allocate(GtkWidget *widget, int width, int height, int basel
allocation.y = -(*env)->CallIntMethod(env, wrapper->jobj, handle_cache.view.getScrollY);
}
gtk_widget_size_allocate(wrapper->child, &allocation, baseline);
if (ATL_IS_ANDROID_LAYOUT(gtk_widget_get_layout_manager(wrapper->child))) {
AndroidLayout *layout = ATL_ANDROID_LAYOUT(gtk_widget_get_layout_manager(wrapper->child));
if (layout->real_width != width || layout->real_height != height) {
layout->real_width = width;
layout->real_height = height;
if (!layout->needs_allocation)
gtk_widget_queue_allocate(wrapper->child);
}
if (layout->needs_allocation)
gtk_widget_size_allocate(wrapper->child, &allocation, baseline);
else
gtk_widget_size_allocate(wrapper->child, &(GtkAllocation){.x = allocation.x, .y = allocation.y}, baseline);
} else {
gtk_widget_size_allocate(wrapper->child, &allocation, baseline);
}
if (wrapper->sk_area)
gtk_widget_size_allocate(wrapper->sk_area, &allocation, baseline);
if (wrapper->background)
@@ -184,6 +203,7 @@ void wrapper_widget_set_jobject(WrapperWidget *wrapper, JNIEnv *env, jobject job
g_signal_connect(controller, "released", G_CALLBACK(on_click), _REF(jobj));
gtk_widget_add_controller(wrapper->child, controller);
widget_set_needs_allocation(wrapper->child);
}
}

3
src/api-impl-jni/widgets/WrapperWidget.h
View File

@@ -20,6 +20,9 @@ struct _WrapperWidget
jmethodID computeScroll_method;
int layout_width;
int layout_height;
int real_width;
int real_height;
gboolean needs_allocation;
};
struct _WrapperWidgetClass