1 // Copyright 2013 The Flutter 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 "flutter/shell/platform/glfw/platform_handler.h"
6
7 #include <iostream>
8
9 #include "flutter/shell/platform/common/cpp/client_wrapper/include/flutter/json_method_codec.h"
10
11 static constexpr char kChannelName[] = "flutter/platform";
12
13 static constexpr char kGetClipboardDataMethod[] = "Clipboard.getData";
14 static constexpr char kSetClipboardDataMethod[] = "Clipboard.setData";
15 static constexpr char kSystemNavigatorPopMethod[] = "SystemNavigator.pop";
16
17 static constexpr char kTextPlainFormat[] = "text/plain";
18 static constexpr char kTextKey[] = "text";
19
20 static constexpr char kUnknownClipboardFormatError[] =
21 "Unknown clipboard format error";
22
23 namespace flutter {
24
PlatformHandler(flutter::BinaryMessenger * messenger,GLFWwindow * window)25 PlatformHandler::PlatformHandler(flutter::BinaryMessenger* messenger,
26 GLFWwindow* window)
27 : channel_(std::make_unique<flutter::MethodChannel<rapidjson::Document>>(
28 messenger,
29 kChannelName,
30 &flutter::JsonMethodCodec::GetInstance())),
31 window_(window) {
32 channel_->SetMethodCallHandler(
33 [this](
34 const flutter::MethodCall<rapidjson::Document>& call,
35 std::unique_ptr<flutter::MethodResult<rapidjson::Document>> result) {
36 HandleMethodCall(call, std::move(result));
37 });
38 }
39
HandleMethodCall(const flutter::MethodCall<rapidjson::Document> & method_call,std::unique_ptr<flutter::MethodResult<rapidjson::Document>> result)40 void PlatformHandler::HandleMethodCall(
41 const flutter::MethodCall<rapidjson::Document>& method_call,
42 std::unique_ptr<flutter::MethodResult<rapidjson::Document>> result) {
43 const std::string& method = method_call.method_name();
44
45 if (method.compare(kGetClipboardDataMethod) == 0) {
46 // Only one string argument is expected.
47 const rapidjson::Value& format = method_call.arguments()[0];
48
49 if (strcmp(format.GetString(), kTextPlainFormat) != 0) {
50 result->Error(kUnknownClipboardFormatError,
51 "GLFW clipboard API only supports text.");
52 return;
53 }
54
55 const char* clipboardData = glfwGetClipboardString(window_);
56 if (clipboardData == nullptr) {
57 result->Error(kUnknownClipboardFormatError,
58 "Failed to retrieve clipboard data from GLFW api.");
59 return;
60 }
61 rapidjson::Document document;
62 document.SetObject();
63 rapidjson::Document::AllocatorType& allocator = document.GetAllocator();
64 document.AddMember(rapidjson::Value(kTextKey, allocator),
65 rapidjson::Value(clipboardData, allocator), allocator);
66 result->Success(&document);
67 } else if (method.compare(kSetClipboardDataMethod) == 0) {
68 const rapidjson::Value& document = *method_call.arguments();
69 rapidjson::Value::ConstMemberIterator itr = document.FindMember(kTextKey);
70 if (itr == document.MemberEnd()) {
71 result->Error(kUnknownClipboardFormatError,
72 "Missing text to store on clipboard.");
73 return;
74 }
75 glfwSetClipboardString(window_, itr->value.GetString());
76 result->Success();
77 } else if (method.compare(kSystemNavigatorPopMethod) == 0) {
78 exit(EXIT_SUCCESS);
79 result->Success();
80 } else {
81 result->NotImplemented();
82 }
83 }
84 } // namespace flutter
85