Support for chat message (WIP)

ImGui/imgui_draw.cpp

@@ -2816,6 +2816,8 @@ void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col
 
 void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
 {
+    ImU32 color_bkp = col;
+
     if (!text_end)
         text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
 
@@ -2871,6 +2873,34 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col
 
     while (s < text_end)
     {
+        if (*s == 1)
+        {
+            ++s;
+            
+            unsigned char color[4];
+
+            for (int i = 0; i < 4; ++i, s+=2)
+            {
+                if (s[0] >= '0' && s[0] <= '9')
+                    color[i] = (s[0] - '0') * 16;
+                else if (s[0] >= 'a' && s[0] <= 'f')
+                    color[i] = (s[0] - 'a' + 10) * 16;
+                else if (s[0] >= 'A' && s[0] <= 'F')
+                    color[i] = (s[0] - 'A' + 10) * 16;
+
+                if (s[1] >= '0' && s[1] <= '9')
+                    color[i] += (s[1] - '0');
+                else if (s[1] >= 'a' && s[1] <= 'f')
+                    color[i] += (s[1] - 'a' + 10);
+                else if (s[1] >= 'A' && s[1] <= 'F')
+                    color[i] += (s[1] - 'A' + 10);
+            }
+
+            col = ImColor(color[0], color[1], color[2], color[3]);
+
+            continue;
+        }
+
         if (word_wrap_enabled)
         {
             // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.

dll/net.proto

@@ -185,6 +185,17 @@ message Friend_Messages {
     }
 }
 
+message Steam_Messages {
+	enum Types {
+		FRIEND_CHAT = 0;
+	}
+
+	Types type = 1;
+	oneof message_data {
+		bytes message = 2;
+	}
+}
+
 message Common_Message {
     uint64 source_id = 1;
     uint64 dest_id = 2;
@@ -200,6 +211,7 @@ message Common_Message {
         Friend_Messages friend_messages = 11;
         Network_Old network_old = 12;
         Networking_Sockets networking_sockets = 13;
+		Steam_Messages steam_messages = 14;
     }
 
     uint32 source_ip = 128;

dll/network.cpp

@@ -533,6 +533,11 @@ void Networking::do_callbacks_message(Common_Message *msg)
         PRINT_DEBUG("has_networking_sockets\n");
         run_callbacks(CALLBACK_ID_NETWORKING_SOCKETS, msg);
     }
+
+    if (msg->has_steam_messages()) {
+        PRINT_DEBUG("has_steam_messages\n");
+        run_callbacks(CALLBACK_ID_STEAM_MESSAGES, msg);
+    }
 }
 
 bool Networking::handle_tcp(Common_Message *msg, struct TCP_Socket &socket)

dll/network.h

@@ -60,6 +60,7 @@ enum Callback_Ids {
     CALLBACK_ID_AUTH_TICKET,
     CALLBACK_ID_FRIEND_MESSAGES,
     CALLBACK_ID_NETWORKING_SOCKETS,
+    CALLBACK_ID_STEAM_MESSAGES,
 
     CALLBACK_IDS_MAX
 };

overlay_experimental/steam_overlay.cpp

@@ -3,6 +3,7 @@
 #include <thread>
 #include <string>
 #include <sstream>
+#include <cctype>
 #include <imgui.h>
 #include <impls/imgui_impl_win32.h>
 
@@ -98,6 +99,7 @@ Steam_Overlay::Steam_Overlay(Settings* settings, SteamCallResults* callback_resu
     overlay_state_changed(false)
 {
     run_every_runcb->add(&Steam_Overlay::steam_overlay_run_every_runcb, this);
+    this->network->setCallback(CALLBACK_ID_STEAM_MESSAGES, settings->get_local_steam_id(), &Steam_Overlay::steam_overlay_callback, this);
 }
 
 Steam_Overlay::~Steam_Overlay()
@@ -105,6 +107,12 @@ Steam_Overlay::~Steam_Overlay()
     run_every_runcb->remove(&Steam_Overlay::steam_overlay_run_every_runcb, this);
 }
 
+void Steam_Overlay::steam_overlay_callback(void* object, Common_Message* msg)
+{
+    Steam_Overlay* _this = reinterpret_cast<Steam_Overlay*>(object);
+    _this->Callback(msg);
+}
+
 void Steam_Overlay::steam_overlay_run_every_runcb(void* object)
 {
     Steam_Overlay* _this = reinterpret_cast<Steam_Overlay*>(object);
@@ -262,6 +270,7 @@ void Steam_Overlay::FriendConnect(Friend _friend)
 {
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
     friends[_friend].window_state = window_state_none;
+    memset(friends[_friend].chat_input, 0, max_chat_len);
 }
 
 void Steam_Overlay::FriendDisconnect(Friend _friend)
@@ -296,13 +305,13 @@ void Steam_Overlay::BuildFriendWindow(Friend const& frd, friend_window_state& st
         return;
 
     bool show = true;
-    ImGui::SetNextWindowSizeConstraints({ 160.0,90.0 }, { 9999.0, 9999.0 });
+
     if (ImGui::Begin(frd.name().c_str(), &show))
     {
         // Fill this with the chat box and maybe the invitation
         if (state.window_state & (window_state_lobby_invite | window_state_rich_invite))
         {
-            ImGui::LabelText("", "%s invited you to join the game.", frd.name().c_str());
+            ImGui::LabelText("##label", "%s invited you to join the game.", frd.name().c_str());
             ImGui::SameLine();
             if (ImGui::Button("Accept"))
             {
@@ -314,6 +323,30 @@ void Steam_Overlay::BuildFriendWindow(Friend const& frd, friend_window_state& st
                 state.window_state &= ~(window_state_lobby_invite | window_state_rich_invite);
             }
         }
+
+        ImGui::PushItemWidth(-1.0f);
+        ImGui::InputTextMultiline("##chat_history", &state.chat_history[0], state.chat_history.length(), { -1.0f, 0 }, ImGuiInputTextFlags_ReadOnly);
+        ImGui::PopItemWidth();
+
+        if (ImGui::InputText("##chat_line", state.chat_input, max_chat_len, ImGuiInputTextFlags_EnterReturnsTrue))
+        {
+            if (!(state.window_state & window_state_send_message))
+            {
+                has_friend_action.push(frd);
+                state.window_state |= window_state_send_message;
+            }
+        }
+
+        ImGui::SameLine();
+
+        if (ImGui::Button("Send"))
+        {
+            if (!(state.window_state & window_state_send_message))
+            {
+                has_friend_action.push(frd);
+                state.window_state |= window_state_send_message;
+            }
+        }
     }
     // User closed the friend window
     if (!show)
@@ -335,18 +368,17 @@ void Steam_Overlay::OverlayProc( int width, int height )
     ImGui::SetNextWindowSize({ static_cast<float>(width),
                                static_cast<float>(height) });
 
-    bool open_overlay = show_overlay;
+    if (ImGui::Begin("SteamOverlay", nullptr, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoBringToFrontOnFocus))
-    if (ImGui::Begin("SteamOverlay", &open_overlay, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoBringToFrontOnFocus))
     {
-        ImGui::LabelText("", "Username: %s(%llu) playing %u",
+        ImGui::LabelText("##label", "Username: %s(%llu) playing %u",
             settings->get_local_name(),
             settings->get_local_steam_id().ConvertToUint64(),
             settings->get_local_game_id().AppID());
 
         ImGui::Spacing();
 
-        ImGui::LabelText("", "Friends");
+        ImGui::LabelText("##label", "Friends");
-        ImGui::ListBoxHeader("", friend_size);
+        ImGui::ListBoxHeader("##label", friend_size);
         std::for_each(friends.begin(), friends.end(), [this]( auto& i)
         {
             ImGui::PushID(i.first.id());
@@ -372,11 +404,25 @@ void Steam_Overlay::OverlayProc( int width, int height )
     }
     ImGui::End();
 
-    ShowOverlay(open_overlay);
-
     //ImGui::ShowDemoWindow();
 }
 
+void Steam_Overlay::Callback(Common_Message *msg)
+{
+    if (msg->has_steam_messages())
+    {
+        Friend frd;
+        frd.set_id(msg->source_id());
+        auto friend_info = friends.find(frd);
+        if (friend_info != friends.end())
+        {
+            Steam_Messages const& steam_message = msg->steam_messages();
+            // Change color to cyan for friend
+            friend_info->second.chat_history.append("\x1", 1).append("00FFFFFF", 8).append(steam_message.message()).append("\n", 1);
+        }
+    }
+}
+
 void Steam_Overlay::RunCallbacks()
 {
     if (overlay_state_changed)
@@ -397,6 +443,31 @@ void Steam_Overlay::RunCallbacks()
         if (friend_info != friends.end())
         {
             uint64 friend_id = friend_info->first.id();
+            // The user clicken on "Send"
+            if (friend_info->second.window_state & window_state_send_message)
+            {
+                char* input = friend_info->second.chat_input;
+                char* end_input = input + strlen(input);
+                char* printable_char = std::find_if(input, end_input, [](char c) {
+                    return std::isgraph(c);
+                });
+                if (printable_char != end_input)
+                {
+                    // Handle chat send
+                    Common_Message msg;
+                    Steam_Messages* steam_messages = new Steam_Messages;
+                    steam_messages->set_type(Steam_Messages::FRIEND_CHAT);
+                    steam_messages->set_message(friend_info->second.chat_input);
+                    msg.set_allocated_steam_messages(steam_messages);
+                    msg.set_source_id(settings->get_local_steam_id().ConvertToUint64());
+                    msg.set_dest_id(friend_id);
+                    network->sendTo(&msg, true);
+
+                    friend_info->second.chat_history.append("\x1", 1).append("00FF00FF", 8).append(input).append("\n", 1);
+                }
+                *input = 0; // Reset the input field
+                friend_info->second.window_state &= ~window_state_send_message;
+            }
             // The user clicked on "Invite"
             if (friend_info->second.window_state & window_state_invite)
             {

overlay_experimental/steam_overlay.h

@@ -6,6 +6,8 @@
 #include <map>
 #include <queue>
 
+static constexpr size_t max_chat_len = 768;
+
 enum window_state
 {
     window_state_none         = 0,
@@ -13,17 +15,20 @@ enum window_state
     window_state_invite       = 1<<1,
     window_state_join         = 1<<2,
     window_state_lobby_invite = 1<<3,
-    window_state_rich_invite  = 1<<4
+    window_state_rich_invite  = 1<<4,
+    window_state_send_message = 1<<5,
 };
 
 struct friend_window_state
 {
     uint8 window_state;
-    union
+    union // The invitation (if any)
     {
         uint64 lobbyId;
         char connect[k_cchMaxRichPresenceValueLength];
     };
+    std::string chat_history;
+    char chat_input[max_chat_len];
 };
 
 struct Friend_Less
@@ -70,6 +75,9 @@ class Steam_Overlay
     static LRESULT WINAPI MyDispatchMessageW(const MSG* lpMsg);
 
     static void steam_overlay_run_every_runcb(void* object);
+    static void steam_overlay_callback(void* object, Common_Message* msg);
+
+    void Callback(Common_Message* msg);
     void RunCallbacks();
 
     // Right click on friend