remoting/protocol/clipboard_echo_filter.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "remoting/protocol/clipboard_echo_filter.h"
   6
   7 #include "remoting/proto/event.pb.h"
   8
   9 namespace remoting {
  10 namespace protocol {
  11
  12 ClipboardEchoFilter::ClipboardEchoFilter()
  13   : host_stub_(nullptr),
  14     client_stub_(nullptr),
  15     client_filter_(this),
  16     host_filter_(this) {
  17 }
  18
  19 ClipboardEchoFilter::~ClipboardEchoFilter() {
  20 }
  21
  22 void ClipboardEchoFilter::set_client_stub(ClipboardStub* client_stub) {
  23   client_stub_ = client_stub;
  24 }
  25
  26 void ClipboardEchoFilter::set_host_stub(ClipboardStub* host_stub) {
  27   host_stub_ = host_stub;
  28 }
  29
  30 ClipboardStub* ClipboardEchoFilter::client_filter() {
  31   return &client_filter_;
  32 }
  33
  34 ClipboardStub* ClipboardEchoFilter::host_filter() {
  35   return &host_filter_;
  36 }
  37
  38 void ClipboardEchoFilter::InjectClipboardEventToClient(
  39     const ClipboardEvent& event) {
  40   if (!client_stub_) {
  41     return;
  42   }
  43   if (event.mime_type() == client_latest_mime_type_ &&
  44       event.data() == client_latest_data_) {
  45     return;
  46   }
  47   client_stub_->InjectClipboardEvent(event);
  48 }
  49
  50 void ClipboardEchoFilter::InjectClipboardEventToHost(
  51     const ClipboardEvent& event) {
  52   client_latest_mime_type_ = event.mime_type();
  53   client_latest_data_ = event.data();
  54   if (host_stub_) {
  55     host_stub_->InjectClipboardEvent(event);
  56   }
  57 }
  58
  59 ClipboardEchoFilter::ClientFilter::ClientFilter(
  60     ClipboardEchoFilter* filter) : filter_(filter) {
  61 }
  62
  63 void ClipboardEchoFilter::ClientFilter::InjectClipboardEvent(
  64     const ClipboardEvent& event) {
  65   filter_->InjectClipboardEventToClient(event);
  66 }
  67
  68 ClipboardEchoFilter::HostFilter::HostFilter(
  69     ClipboardEchoFilter* filter) : filter_(filter) {
  70 }
  71
  72 void ClipboardEchoFilter::HostFilter::InjectClipboardEvent(
  73     const ClipboardEvent& event) {
  74   filter_->InjectClipboardEventToHost(event);
  75 }
  76
  77 }  // namespace protocol
  78 }  // namespace remoting