Minimum implementation of ARC clipboard Bridge

components/arc/clipboard/clipboard_bridge_impl.cc

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/arc/clipboard/clipboard_bridge_impl.h"
+
+#include "base/logging.h"
+#include "base/strings/utf_string_conversions.h"
+#include "components/arc/arc_bridge_service.h"
+#include "ui/base/clipboard/clipboard.h"
+#include "ui/base/clipboard/clipboard_types.h"
+#include "ui/base/clipboard/scoped_clipboard_writer.h"
+
+namespace arc {
+
+ClipboardBridgeImpl::ClipboardBridgeImpl(ArcBridgeService* bridge_service)
+    : bridge_service_(bridge_service) {
+  DCHECK(bridge_service_->state() == ArcBridgeService::State::STOPPED);

[elijahtaylor1, 2015/12/15 01:17:05]

is this required?

[Luis Héctor Chávez, 2015/12/16 23:16:23]

Shouldn't be. It was required by input, but is not needed anymore.

[cnwan, 2015/12/21 11:18:00]

Done.

+
+  bridge_service_->AddClipboardObserver(this);
+}
+
+ClipboardBridgeImpl::~ClipboardBridgeImpl() {
+  bridge_service_->RemoveClipboardObserver(this);
+}
+
+void ClipboardBridgeImpl::OnSetClipboardContent(const std::string& text) {
+  base::string16 result = base::UTF8ToUTF16(text);
+
+  ui::ScopedClipboardWriter writer(ui::CLIPBOARD_TYPE_COPY_PASTE);
+  writer.WriteText(result);
+}
+
+void ClipboardBridgeImpl::OnGetClipboardContent() {
+  base::string16 text;
+  ui::Clipboard* clipboard = ui::Clipboard::GetForCurrentThread();

[elijahtaylor1, 2015/12/15 01:17:05]

do we need to check which thread we're on to get a consistent view?  just
curious what "GetForCurrentThread" is for, as if there would be multiple
clipboards.

[cnwan, 2015/12/21 11:18:00]

Done.

+  clipboard->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &text);
+
+  std::string result = base::UTF16ToUTF8(text);
+  bridge_service_->SendClipboardContentToAndroid(result);
+}
+
+scoped_ptr<ClipboardBridge> ClipboardBridge::Create(
+    ArcBridgeService* bridge_service) {
+  return make_scoped_ptr(new ClipboardBridgeImpl(bridge_service));
+}
+
+}  // namespace arc