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View: call onLayout() only on size change or on request

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GTK always wants us to call gtk_widget_allocate() on all children, so we
need to do it manually when not calling onLayout().
This commit is contained in:
Julian Winkler
2025-03-01 15:14:25 +01:00
parent f0fcd47c80
commit b33a470c7b
3 changed files with 26 additions and 7 deletions
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2
src/api-impl-jni/util.c
View File

@@ -134,7 +134,7 @@ void set_up_handle_cache(JNIEnv *env)
handle_cache.view.onTouchEvent = _METHOD(handle_cache.view.class, "onTouchEvent", "(Landroid/view/MotionEvent;)Z");
handle_cache.view.dispatchTouchEvent = _METHOD(handle_cache.view.class, "dispatchTouchEvent", "(Landroid/view/MotionEvent;)Z");
handle_cache.view.onInterceptTouchEvent = _METHOD(handle_cache.view.class, "onInterceptTouchEvent", "(Landroid/view/MotionEvent;)Z");
handle_cache.view.layoutInternal = _METHOD(handle_cache.view.class, "layoutInternal", "(II)V");
handle_cache.view.layoutInternal = _METHOD(handle_cache.view.class, "layoutInternal", "(II)Z");
handle_cache.view.measure = _METHOD(handle_cache.view.class, "measure", "(II)V");
handle_cache.view.performLongClick = _METHOD(handle_cache.view.class, "performLongClick", "(FF)Z");
handle_cache.view.getId = _METHOD(handle_cache.view.class, "getId", "()I");

11
src/api-impl-jni/views/AndroidLayout.c
View File

@@ -70,9 +70,18 @@ static void android_layout_allocate(GtkLayoutManager *layout_manager, GtkWidget
height = layout->real_height;
}
(*env)->CallVoidMethod(env, layout->view, handle_cache.view.layoutInternal, width, height);
jboolean layoutChanged = (*env)->CallBooleanMethod(env, layout->view, handle_cache.view.layoutInternal, width, height);
if((*env)->ExceptionCheck(env))
(*env)->ExceptionDescribe(env);
if (!layoutChanged) { // No change in layout. Reapply the current allocations
for (GtkWidget *child = gtk_widget_get_first_child(widget); child; child = gtk_widget_get_next_sibling(child)) {
graphene_matrix_t transform_matrix;
if (gtk_widget_compute_transform(child, widget, &transform_matrix)) {
GskTransform *transform = gsk_transform_matrix(NULL, &transform_matrix);
gtk_widget_allocate(child, gtk_widget_get_width(child), gtk_widget_get_height(child), gtk_widget_get_baseline(child), transform);
}
}
}
}
static GtkSizeRequestMode android_layout_get_request_mode(GtkLayoutManager *layout_manager, GtkWidget *widget)