From ab85fdb4524788ce7279e8ac362a0c1edbd5d5df Mon Sep 17 00:00:00 2001
From: Ivo van Dongen <info@ivovandongen.nl>
Date: Wed, 19 Oct 2016 16:05:36 +0300
Subject: [glfw] add map change callback methods to glfw_view

---
 include/mbgl/platform/default/glfw_view.hpp |  5 +++++
 platform/default/glfw_view.cpp              | 10 ++++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/mbgl/platform/default/glfw_view.hpp b/include/mbgl/platform/default/glfw_view.hpp
index b352709830..8662a90bf3 100644
--- a/include/mbgl/platform/default/glfw_view.hpp
+++ b/include/mbgl/platform/default/glfw_view.hpp
@@ -42,6 +42,9 @@ public:
 
     void run();
     void report(float duration);
+    
+    void setMapChangeCallback(std::function<void(mbgl::MapChange)> callback);
+    void notifyMapChange(mbgl::MapChange change) override;
 
 private:
     mbgl::Color makeRandomColor() const;
@@ -62,6 +65,8 @@ private:
     mbgl::AnnotationIDs annotationIDs;
     std::vector<std::string> spriteIDs;
 
+    std::function<void(mbgl::MapChange)> mapChangeCallback;
+
 private:
     bool fullscreen = false;
     const bool benchmark = false;
diff --git a/platform/default/glfw_view.cpp b/platform/default/glfw_view.cpp
index fa5190c80c..28789e4a67 100644
--- a/platform/default/glfw_view.cpp
+++ b/platform/default/glfw_view.cpp
@@ -508,6 +508,16 @@ void GLFWView::setWindowTitle(const std::string& title) {
     glfwSetWindowTitle(window, (std::string { "Mapbox GL: " } + title).c_str());
 }
 
+void GLFWView::setMapChangeCallback(std::function<void(mbgl::MapChange)> callback) {
+    this->mapChangeCallback = callback;
+}
+
+void GLFWView::notifyMapChange(mbgl::MapChange change) {
+    if (mapChangeCallback) {
+        mapChangeCallback(change);
+    }
+}
+
 namespace mbgl {
 namespace platform {
 
-- 
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