Add Windows clipboard support

src/platform/windows/misc.cpp

@@ -35,6 +35,7 @@
 #include <Shlwapi.h>
 
 #include "misc.h"
+#include "utils.h"
 
 #include "src/entry_handler.h"
 #include "src/globals.h"
@@ -95,6 +96,10 @@ namespace {
 
 namespace bp = boost::process;
 
+static std::string ensureCrLf(const std::string& utf8Str);
+static std::wstring getClipboardData();
+static int setClipboardData(const std::string& acpStr);
+
 using namespace std::literals;
 namespace platf {
   using adapteraddrs_t = util::c_ptr<IP_ADAPTER_ADDRESSES>;
@@ -1941,4 +1946,103 @@ namespace platf {
   create_high_precision_timer() {
     return std::make_unique<win32_high_precision_timer>();
   }
+
+  std::string
+  get_clipboard() {
+    std::string currentClipboard = to_utf8(getClipboardData());
+    return currentClipboard;
+  }
+
+  bool
+  set_clipboard(const std::string& content) {
+    std::string cpContent = convertUtf8ToCurrentCodepage(ensureCrLf(content));
+    return !setClipboardData(cpContent);
+  }
 }  // namespace platf
+
+static std::string ensureCrLf(const std::string& utf8Str) {
+    std::string result;
+    result.reserve(utf8Str.size() + utf8Str.length() / 2); // Reserve extra space
+
+    for (size_t i = 0; i < utf8Str.size(); ++i) {
+        if (utf8Str[i] == '\n' && (i == 0 || utf8Str[i - 1] != '\r')) {
+            result += '\r'; // Add \r before \n if not present
+        }
+        result += utf8Str[i]; // Always add the current character
+    }
+
+    return result;
+}
+
+static std::wstring getClipboardData() {
+  if (!OpenClipboard(nullptr)) {
+    BOOST_LOG(warning) << "Failed to open clipboard.";
+    return L"";
+  }
+
+  HANDLE hData = GetClipboardData(CF_UNICODETEXT);
+  if (hData == nullptr) {
+    BOOST_LOG(warning) << "No text data in clipboard or failed to get data.";
+    CloseClipboard();
+    return L"";
+  }
+
+  wchar_t* pszText = static_cast<wchar_t*>(GlobalLock(hData));
+  if (pszText == nullptr) {
+    BOOST_LOG(warning) << "Failed to lock clipboard data.";
+    CloseClipboard();
+    return L"";
+  }
+
+  std::wstring ret = pszText;
+
+  GlobalUnlock(hData);
+  CloseClipboard();
+
+  return ret;
+}
+
+static int setClipboardData(const std::string& acpStr) {
+  if (!OpenClipboard(nullptr)) {
+    BOOST_LOG(warning) << "Failed to open clipboard.";
+    return 1;
+  }
+
+  if (!EmptyClipboard()) {
+    BOOST_LOG(warning) << "Failed to empty clipboard.";
+    CloseClipboard();
+    return 1;
+  }
+
+  // Allocate global memory for the clipboard text
+  HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE, acpStr.size() + 1);
+  if (hGlobal == nullptr) {
+    BOOST_LOG(warning) << "Failed to allocate global memory.";
+    CloseClipboard();
+    return 1;
+  }
+
+  // Lock the global memory and copy the text
+  char* pGlobal = static_cast<char*>(GlobalLock(hGlobal));
+  if (pGlobal == nullptr) {
+    BOOST_LOG(warning) << "Failed to lock global memory.";
+    GlobalFree(hGlobal);
+    CloseClipboard();
+    return 1;
+  }
+
+  memcpy(pGlobal, acpStr.c_str(), acpStr.size() + 1);
+  GlobalUnlock(hGlobal);
+
+  // Set the clipboard data
+  if (SetClipboardData(CF_TEXT, hGlobal) == nullptr) {
+    BOOST_LOG(warning) << "Failed to set clipboard data.";
+    GlobalFree(hGlobal);
+    CloseClipboard();
+    return 1;
+  }
+
+  CloseClipboard();
+
+  return 0;
+}