1 files changed, 73 insertions, 0 deletions
diff --git a/widget/gtk/nsClipboardX11.h b/widget/gtk/nsClipboardX11.h
new file mode 100644
index 0000000000..2363111f74
--- /dev/null
+++ b/widget/gtk/nsClipboardX11.h
@@ -0,0 +1,73 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=4:tabstop=4:
+ */
+/* 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/. */
+
+#ifndef __nsClipboardX11_h_
+#define __nsClipboardX11_h_
+
+#include <gtk/gtk.h>
+
+enum ClipboardDataType { CLIPBOARD_DATA, CLIPBOARD_TEXT, CLIPBOARD_TARGETS };
+
+class nsRetrievalContextX11 : public nsRetrievalContext {
+ public:
+  enum State { INITIAL, COMPLETED, TIMED_OUT };
+
+  virtual const char* GetClipboardData(const char* aMimeType,
+                                       int32_t aWhichClipboard,
+                                       uint32_t* aContentLength) override;
+  virtual const char* GetClipboardText(int32_t aWhichClipboard) override;
+  virtual void ReleaseClipboardData(const char* aClipboardData) override;
+
+  virtual GdkAtom* GetTargets(int32_t aWhichClipboard,
+                              int* aTargetNums) override;
+
+  virtual bool HasSelectionSupport(void) override;
+
+  // Call this when data or text has been retrieved.
+  void Complete(ClipboardDataType aDataType, const void* aData,
+                int aDataRequestNumber);
+
+  nsRetrievalContextX11();
+
+ private:
+  bool WaitForClipboardData(ClipboardDataType aDataType,
+                            GtkClipboard* clipboard,
+                            const char* aMimeType = nullptr);
+
+  /**
+   * Spins X event loop until timing out or being completed. Returns
+   * null if we time out, otherwise returns the completed data (passing
+   * ownership to caller).
+   */
+  bool WaitForX11Content();
+
+  State mState;
+  int mClipboardRequestNumber;
+  void* mClipboardData;
+  uint32_t mClipboardDataLength;
+  GdkAtom mTargetMIMEType;
+};
+
+class ClipboardRequestHandler {
+ public:
+  ClipboardRequestHandler(nsRetrievalContextX11* aContext,
+                          ClipboardDataType aDataType, int aDataRequestNumber)
+      : mContext(aContext),
+        mDataRequestNumber(aDataRequestNumber),
+        mDataType(aDataType) {}
+
+  void Complete(const void* aData) {
+    mContext->Complete(mDataType, aData, mDataRequestNumber);
+  }
+
+ private:
+  nsRetrievalContextX11* mContext;
+  int mDataRequestNumber;
+  ClipboardDataType mDataType;
+};
+
+#endif /* __nsClipboardX11_h_ */