1 files changed, 120 insertions, 0 deletions
diff --git a/widget/gtk/AsyncGtkClipboardRequest.cpp b/widget/gtk/AsyncGtkClipboardRequest.cpp
new file mode 100644
index 0000000000..75801c698d
--- /dev/null
+++ b/widget/gtk/AsyncGtkClipboardRequest.cpp
@@ -0,0 +1,120 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=4 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "AsyncGtkClipboardRequest.h"
+
+namespace mozilla {
+
+AsyncGtkClipboardRequest::AsyncGtkClipboardRequest(ClipboardDataType aDataType,
+                                                   int32_t aWhichClipboard,
+                                                   const char* aMimeType) {
+  GtkClipboard* clipboard =
+      gtk_clipboard_get(GetSelectionAtom(aWhichClipboard));
+  mRequest = MakeUnique<Request>(aDataType);
+
+  switch (aDataType) {
+    case ClipboardDataType::Data:
+      LOGCLIP("  getting DATA MIME %s\n", aMimeType);
+      gtk_clipboard_request_contents(clipboard,
+                                     gdk_atom_intern(aMimeType, FALSE),
+                                     OnDataReceived, mRequest.get());
+      break;
+    case ClipboardDataType::Text:
+      LOGCLIP("  getting TEXT\n");
+      gtk_clipboard_request_text(clipboard, OnTextReceived, mRequest.get());
+      break;
+    case ClipboardDataType::Targets:
+      LOGCLIP("  getting TARGETS\n");
+      gtk_clipboard_request_contents(clipboard,
+                                     gdk_atom_intern("TARGETS", FALSE),
+                                     OnDataReceived, mRequest.get());
+      break;
+  }
+}
+
+void AsyncGtkClipboardRequest::OnDataReceived(GtkClipboard* clipboard,
+                                              GtkSelectionData* selection_data,
+                                              gpointer data) {
+  int whichClipboard = GetGeckoClipboardType(clipboard);
+  LOGCLIP("OnDataReceived(%s) callback\n",
+          whichClipboard == nsClipboard::kSelectionClipboard ? "primary"
+                                                             : "clipboard");
+  static_cast<Request*>(data)->Complete(selection_data);
+}
+
+void AsyncGtkClipboardRequest::OnTextReceived(GtkClipboard* clipboard,
+                                              const gchar* text,
+                                              gpointer data) {
+  int whichClipboard = GetGeckoClipboardType(clipboard);
+  LOGCLIP("OnTextReceived(%s) callback\n",
+          whichClipboard == nsClipboard::kSelectionClipboard ? "primary"
+                                                             : "clipboard");
+  static_cast<Request*>(data)->Complete(text);
+}
+
+void AsyncGtkClipboardRequest::Request::Complete(const void* aData) {
+  LOGCLIP("Request::Complete(), aData = %p, timedOut = %d\n", aData, mTimedOut);
+
+  if (mTimedOut) {
+    delete this;
+    return;
+  }
+
+  mData.emplace();
+
+  gint dataLength = 0;
+  if (mDataType == ClipboardDataType::Targets ||
+      mDataType == ClipboardDataType::Data) {
+    dataLength = gtk_selection_data_get_length((GtkSelectionData*)aData);
+  } else {
+    dataLength = aData ? strlen((const char*)aData) : 0;
+  }
+
+  // Negative size means no data or data error.
+  if (dataLength <= 0) {
+    LOGCLIP("    zero dataLength, quit.\n");
+    return;
+  }
+
+  switch (mDataType) {
+    case ClipboardDataType::Targets: {
+      LOGCLIP("    getting %d bytes of clipboard targets.\n", dataLength);
+      gint n_targets = 0;
+      GdkAtom* targets = nullptr;
+      if (!gtk_selection_data_get_targets((GtkSelectionData*)aData, &targets,
+                                          &n_targets) ||
+          !n_targets) {
+        // We failed to get targets
+        return;
+      }
+      mData->SetTargets(
+          ClipboardTargets{GUniquePtr<GdkAtom>(targets), uint32_t(n_targets)});
+      break;
+    }
+    case ClipboardDataType::Text: {
+      LOGCLIP("    getting %d bytes of text.\n", dataLength);
+      mData->SetText(Span(static_cast<const char*>(aData), dataLength));
+      LOGCLIP("    done, mClipboardData = %p\n", mData->AsSpan().data());
+      break;
+    }
+    case ClipboardDataType::Data: {
+      LOGCLIP("    getting %d bytes of data.\n", dataLength);
+      mData->SetData(Span(gtk_selection_data_get_data((GtkSelectionData*)aData),
+                          dataLength));
+      LOGCLIP("    done, mClipboardData = %p\n", mData->AsSpan().data());
+      break;
+    }
+  }
+}
+
+AsyncGtkClipboardRequest::~AsyncGtkClipboardRequest() {
+  if (mRequest && mRequest->mData.isNothing()) {
+    mRequest->mTimedOut = true;
+    Unused << mRequest.release();
+  }
+}
+
+}  // namespace mozilla