89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
#include "window_ext_plugin.h"
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// This must be included before many other Windows headers.
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#include <windows.h>
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// For getPlatformVersion; remove unless needed for your plugin implementation.
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#include <VersionHelpers.h>
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#include <flutter/method_channel.h>
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#include <flutter/plugin_registrar_windows.h>
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#include <flutter/standard_method_codec.h>
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#include <memory>
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#include <sstream>
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namespace window_ext {
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std::unique_ptr<
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flutter::MethodChannel<flutter::EncodableValue>,
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std::default_delete<flutter::MethodChannel<flutter::EncodableValue>>>
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channel = nullptr;
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// static
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void WindowExtPlugin::RegisterWithRegistrar(
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flutter::PluginRegistrarWindows *registrar) {
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channel =
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std::make_unique<flutter::MethodChannel<flutter::EncodableValue>>(
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registrar->messenger(), "window_ext",
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&flutter::StandardMethodCodec::GetInstance());
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auto plugin = std::make_unique<WindowExtPlugin>(registrar);
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channel->SetMethodCallHandler(
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[plugin_pointer = plugin.get()](const auto &call, auto result) {
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plugin_pointer->HandleMethodCall(call, std::move(result));
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});
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registrar->AddPlugin(std::move(plugin));
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}
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WindowExtPlugin::WindowExtPlugin(flutter::PluginRegistrarWindows* registrar)
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: registrar(registrar) {
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WM_TASKBARCREATED = RegisterWindowMessage(TEXT("TaskbarCreated"));
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window_proc_id = registrar->RegisterTopLevelWindowProcDelegate(
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[this](HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam) {
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return HandleWindowProc(hwnd, message, wparam, lparam);
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});
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}
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WindowExtPlugin::~WindowExtPlugin() {
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registrar->UnregisterTopLevelWindowProcDelegate(window_proc_id);
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}
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std::optional<LRESULT> WindowExtPlugin::HandleWindowProc(HWND hWnd,
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UINT message,
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WPARAM wParam,
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LPARAM lParam) {
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std::optional<LRESULT> result;
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if(message == WM_TASKBARCREATED){
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channel -> InvokeMethod("taskbarCreated", std::make_unique<flutter::EncodableValue>());
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}
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return result;
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}
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void WindowExtPlugin::HandleMethodCall(
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const flutter::MethodCall<flutter::EncodableValue> &method_call,
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std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result) {
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if (method_call.method_name().compare("getPlatformVersion") == 0) {
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std::ostringstream version_stream;
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version_stream << "Windows ";
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if (IsWindows10OrGreater()) {
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version_stream << "10+";
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} else if (IsWindows8OrGreater()) {
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version_stream << "8";
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} else if (IsWindows7OrGreater()) {
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version_stream << "7";
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}
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result->Success(flutter::EncodableValue(version_stream.str()));
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} else {
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result->NotImplemented();
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}
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}
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} // namespace window_ext
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