From 0a39628bb14e03a6a37fd9593ab4a749445057fc Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Tue, 15 Aug 2023 11:31:01 +0200
Subject: [PATCH] ui+wind: Send mouse move events through IPC

---
 libui/include/ui/ipc/Client.h | 11 +++++++++++
 libui/src/App.cpp             |  6 ++++++
 wind/Mouse.cpp                | 17 +++++++++++++++++
 3 files changed, 34 insertions(+)

diff --git a/libui/include/ui/ipc/Client.h b/libui/include/ui/ipc/Client.h
index 35fbbef9..35b09642 100644
--- a/libui/include/ui/ipc/Client.h
+++ b/libui/include/ui/ipc/Client.h
@@ -9,6 +9,7 @@
 
 #pragma once
 #include <os/IPC.h>
+#include <ui/Point.h>
 
 namespace ui
 {
@@ -17,6 +18,7 @@ namespace ui
         IPC_ENUM_CLIENT(ui),
         CREATE_WINDOW_RESPONSE_ID,
         WINDOW_CLOSE_REQUEST_ID,
+        MOUSE_EVENT_REQUEST_ID,
     };
 
     struct CreateWindowResponse
@@ -33,4 +35,13 @@ namespace ui
 
         int window;
     };
+
+    struct MouseEventRequest
+    {
+        static constexpr u8 ID = MOUSE_EVENT_REQUEST_ID;
+
+        int window;
+        Point position;
+        int buttons;
+    };
 }
diff --git a/libui/src/App.cpp b/libui/src/App.cpp
index 79c00d23..7d934f9f 100644
--- a/libui/src/App.cpp
+++ b/libui/src/App.cpp
@@ -92,6 +92,12 @@ namespace ui
             window->close();
             return {};
         }
+        case MOUSE_EVENT_REQUEST_ID: {
+            MouseEventRequest request;
+            TRY(m_client->recv_typed(request));
+            os::eprintln("ui: Mouse move to (%d, %d)", request.position.x, request.position.y);
+            return {};
+        }
         default: fail("Unexpected IPC request from server!");
         }
     }
diff --git a/wind/Mouse.cpp b/wind/Mouse.cpp
index 63ea0aad..7f3d72e2 100644
--- a/wind/Mouse.cpp
+++ b/wind/Mouse.cpp
@@ -78,4 +78,21 @@ void Mouse::update(const moon::MousePacket& packet)
             }
         }
     }
+
+    for (Window* window = g_windows.last().value_or(nullptr); window;
+         window = g_windows.previous(window).value_or(nullptr))
+    {
+        auto titlebar = window->surface.absolute(window->titlebar);
+        auto contents = window->surface.absolute(window->contents);
+        if (titlebar.contains(m_position)) break;
+        if (contents.contains(m_position))
+        {
+            ui::MouseEventRequest request;
+            request.window = window->id;
+            request.position = contents.relative(m_position);
+            request.buttons = packet.buttons;
+            os::IPC::send_async(window->client->conn, request);
+            break;
+        }
+    }
 }