Add a proxy class for context menu targets

2026-05-16 21:50:11 +02:00 · 2021-01-06 17:51:07 +01:00
parent 0cbcf44e3e
commit d3eeebc9f9
4 changed files with 107 additions and 9 deletions
@@ -0,0 +1,61 @@
+// yabridge: a Wine VST bridge
+// Copyright (C) 2020-2021 Robbert van der Helm
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <pluginterfaces/vst/ivstcontextmenu.h>
+
+#include "../common.h"
+#include "base.h"
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
+
+/**
+ * Wraps around `IContextMenuTarget` for proxying calls to specific
+ * `IContextMenu` items. These are created on the plugin side, and when
+ * `executeMenuItem()` gets called we execute the corresponding menu item's
+ * target _from the GUI thread_.
+ */
+class YaContextMenuTarget : public Steinberg::Vst::IContextMenuTarget {
+   public:
+    /**
+     * Create context menu target that when called, calls the corresponding
+     * context menu target provided by the object.
+     *
+     * @param owner_instance_id The object instance that this target's context
+     *   menu belongs to.
+     * @param context_menu_id The unique ID of the context menu requested by
+     *   `owwner_instance_id`.
+     * @param tag The tag of the menu item this target belongs to.
+     */
+    YaContextMenuTarget(native_size_t owner_instance_id,
+                        native_size_t context_menu_id,
+                        int32 tag);
+
+    ~YaContextMenuTarget();
+
+    DECLARE_FUNKNOWN_METHODS
+
+    virtual tresult PLUGIN_API executeMenuItem(int32 tag) override = 0;
+
+   protected:
+    native_size_t owner_instance_id;
+    native_size_t context_menu_id;
+    int32 tag;
+};
+
+#pragma GCC diagnostic pop