From a1c87e1e155e793fbdb621cba809d053abadf128 Mon Sep 17 00:00:00 2001
From: Starlight220 <53231611+Starlight220@users.noreply.github.com>
Date: Tue, 6 Apr 2021 23:19:49 +0300
Subject: [PATCH] [glass] LogView: Add "copy to clipboard" button (#3274)

---
 glass/src/lib/native/cpp/other/Log.cpp         | 11 ++++++++++-
 glass/src/lib/native/include/glass/other/Log.h |  4 +++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/glass/src/lib/native/cpp/other/Log.cpp b/glass/src/lib/native/cpp/other/Log.cpp
index 83bbe3778f..8e6db5d4aa 100644
--- a/glass/src/lib/native/cpp/other/Log.cpp
+++ b/glass/src/lib/native/cpp/other/Log.cpp
@@ -23,7 +23,7 @@ void LogData::Append(const wpi::Twine& msg) {
   }
 
   size_t oldSize = m_buf.size();
-  wpi::raw_vector_ostream os{m_buf};
+  wpi::raw_string_ostream os{m_buf};
   msg.print(os);
   for (size_t newSize = m_buf.size(); oldSize < newSize; ++oldSize) {
     if (m_buf[oldSize] == '\n') {
@@ -32,6 +32,10 @@ void LogData::Append(const wpi::Twine& msg) {
   }
 }
 
+const std::string& LogData::GetBuffer() {
+  return m_buf;
+}
+
 void glass::DisplayLog(LogData* data, bool autoScroll) {
   if (data->m_buf.empty()) {
     return;
@@ -65,6 +69,11 @@ void LogView::Display() {
     if (ImGui::Selectable("Clear")) {
       m_data->Clear();
     }
+    const auto& buf = m_data->GetBuffer();
+    if (ImGui::Selectable("Copy to Clipboard", false,
+                          buf.empty() ? ImGuiSelectableFlags_Disabled : 0)) {
+      ImGui::SetClipboardText(buf.c_str());
+    }
     ImGui::EndPopup();
   }
 
diff --git a/glass/src/lib/native/include/glass/other/Log.h b/glass/src/lib/native/include/glass/other/Log.h
index 3d1ab146a1..ddaadaf918 100644
--- a/glass/src/lib/native/include/glass/other/Log.h
+++ b/glass/src/lib/native/include/glass/other/Log.h
@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <string>
 #include <vector>
 
 #include <wpi/Twine.h>
@@ -20,10 +21,11 @@ class LogData {
 
   void Clear();
   void Append(const wpi::Twine& msg);
+  const std::string& GetBuffer();
 
  private:
   size_t m_maxLines;
-  std::vector<char> m_buf;
+  std::string m_buf;
   std::vector<size_t> m_lineOffsets{0};
 };