Centralize retained dialog cancel bindings

src/node_dialog_browse.cpp

@@ -30,9 +30,7 @@ void NodeDialogBrowse::init_controls()
 {
     btn_ok = find<NodeButton>("btn-ok");
     btn_cancel = find<NodeButton>("btn-cancel");
-    btn_cancel->on_click = [this](Node*) {
-        destroy();
-    };
+    pp::panopainter::bind_legacy_click_destroys_node(*btn_cancel, *this);
     btn_delete = find<NodeButton>("btn-delete");
     btn_delete->on_click = [this](Node*) {
         if (!current)

src/node_dialog_cloud.cpp

@@ -7,6 +7,7 @@
 #include "node_message_box.h"
 #include "app.h"
 #include "image.h"
+#include "legacy_ui_overlay_services.h"
 #include "platform_api/network_tls_policy.h"
 
 Node* NodeDialogCloud::clone_instantiate() const
@@ -30,9 +31,7 @@ void NodeDialogCloud::init_controls()
 {
     btn_ok = find<NodeButton>("btn-ok");
     btn_cancel = find<NodeButton>("btn-cancel");
-    btn_cancel->on_click = [this](Node*) {
-        destroy();
-    };
+    pp::panopainter::bind_legacy_click_destroys_node(*btn_cancel, *this);
     container = find<Node>("files-list");
     std::thread(&NodeDialogCloud::load_thumbs_thread, this).detach();
 }

src/node_dialog_export_ppbr.cpp

@@ -3,6 +3,7 @@
 #include "node_dialog_export_ppbr.h"
 #include "app.h"
 #include "image.h"
+#include "legacy_ui_overlay_services.h"
 
 Node* NodeDialogExportPPBR::clone_instantiate() const
 {
@@ -30,9 +31,7 @@ void NodeDialogExportPPBR::init_controls()
         m_dest_path_txt->SetVisibility(false);
     btn_ok = find<NodeButton>("btn-ok");
     btn_cancel = find<NodeButton>("btn-cancel");
-    btn_cancel->on_click = [this](Node*) {
-        destroy();
-    };
+    pp::panopainter::bind_legacy_click_destroys_node(*btn_cancel, *this);
     btn_header_open = find<NodeButton>("header-open");
     btn_header_open->on_click = [this] (Node*) {
         open_header();

src/node_dialog_layer_rename.cpp

@@ -2,6 +2,7 @@
 #include "log.h"
 #include "node_dialog_layer_rename.h"
 #include "canvas.h"
+#include "legacy_ui_overlay_services.h"
 #include "node_image_texture.h"
 
 Node* NodeDialogLayerRename::clone_instantiate() const
@@ -26,9 +27,7 @@ void NodeDialogLayerRename::init_controls()
     btn_ok = find<NodeButton>("btn-ok");
     btn_cancel = find<NodeButton>("btn-cancel");
     input = find<NodeTextInput>("txt-input");
-    btn_cancel->on_click = [this](Node*) {
-        destroy();
-    };
+    pp::panopainter::bind_legacy_click_destroys_node(*btn_cancel, *this);
 }
 
 void NodeDialogLayerRename::loaded()

src/node_dialog_open.cpp

@@ -32,9 +32,7 @@ void NodeDialogOpen::init_controls()
 {
     btn_ok = find<NodeButton>("btn-ok");
     btn_cancel = find<NodeButton>("btn-cancel");
-    btn_cancel->on_click = [this](Node*) {
-        destroy();
-    };
+    pp::panopainter::bind_legacy_click_destroys_node(*btn_cancel, *this);
     btn_delete = find<NodeButton>("btn-delete");
     btn_delete->on_click = [this](Node*) {
         if (!current)
@@ -179,9 +177,7 @@ void NodeDialogSave::init_controls()
 {
     btn_ok = find<NodeButton>("btn-ok");
     btn_cancel = find<NodeButton>("btn-cancel");
-    btn_cancel->on_click = [this](Node*) {
-        destroy();
-    };
+    pp::panopainter::bind_legacy_click_destroys_node(*btn_cancel, *this);
     input = find<NodeTextInput>("txt-input");
     input->on_return = [&](NodeTextInput* target){
         if (btn_ok->on_click)
@@ -240,9 +236,7 @@ void NodeDialogNewDoc::init_controls()
     btn_ok = find<NodeButton>("btn-ok");
     m_resolution = find<NodeComboBox>("resolution");
     btn_cancel = find<NodeButton>("btn-cancel");
-    btn_cancel->on_click = [this](Node*) {
-        destroy();
-    };
+    pp::panopainter::bind_legacy_click_destroys_node(*btn_cancel, *this);
     input = find<NodeTextInput>("txt-input");
     input->on_return = [&](NodeTextInput* target){
         if (btn_ok->on_click)

src/node_dialog_resize.cpp

@@ -3,6 +3,7 @@
 #include "node_dialog_resize.h"
 #include "app_core/document_resize.h"
 #include "canvas.h"
+#include "legacy_ui_overlay_services.h"
 #include "node_image_texture.h"
 #include <array>
 
@@ -36,9 +37,7 @@ void NodeDialogResize::init_controls()
         && state.current_resolution_index < static_cast<int>(combo->m_items.size())) {
         combo->m_current_index = state.current_resolution_index;
     }
-    btn_cancel->on_click = [this](Node*) {
-        destroy();
-    };
+    pp::panopainter::bind_legacy_click_destroys_node(*btn_cancel, *this);
 }
 
 void NodeDialogResize::loaded()