[client,sdl] add connection dialog

client/SDL/dialogs/CMakeLists.txt

@@ -15,6 +15,8 @@ set(SRCS
     sdl_select.cpp
     sdl_selectlist.hpp
     sdl_selectlist.cpp
+    sdl_connection_dialog.cpp
+    sdl_connection_dialog.hpp
 )
 
 set(LIBS

client/SDL/dialogs/sdl_connection_dialog.cpp

@@ -0,0 +1,363 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * SDL Client helper dialogs
+ *
+ * Copyright 2023 Armin Novak <armin.novak@thincast.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <assert.h>
+#include <thread>
+
+#include "sdl_connection_dialog.hpp"
+#include "../sdl_utils.hpp"
+#include "../sdl_freerdp.hpp"
+
+static const SDL_Color backgroundcolor = { 0x38, 0x36, 0x35, 0xff };
+static const SDL_Color textcolor = { 0xd1, 0xcf, 0xcd, 0xff };
+
+static const Uint32 hpadding = 10;
+static const Uint32 vpadding = 5;
+
+SDLConnectionDialog::SDLConnectionDialog(rdpContext* context)
+    : _context(context), _window(nullptr), _renderer(nullptr)
+{
+	hide();
+}
+
+SDLConnectionDialog::~SDLConnectionDialog()
+{
+	resetTimer();
+	destroyWindow();
+}
+
+bool SDLConnectionDialog::visible() const
+{
+	return _window && _renderer;
+}
+
+bool SDLConnectionDialog::setTitle(const char* fmt, ...)
+{
+	std::lock_guard lock(_mux);
+	va_list ap;
+	va_start(ap, fmt);
+	_title = print(fmt, ap);
+	va_end(ap);
+
+	return show(MSG_NONE);
+}
+
+bool SDLConnectionDialog::showInfo(const char* fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	auto rc = show(MSG_INFO, fmt, ap);
+	va_end(ap);
+	return rc;
+}
+
+bool SDLConnectionDialog::showWarn(const char* fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	auto rc = show(MSG_WARN, fmt, ap);
+	va_end(ap);
+	return rc;
+}
+
+bool SDLConnectionDialog::showError(const char* fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	auto rc = show(MSG_ERROR, fmt, ap);
+	va_end(ap);
+	return setTimer();
+}
+
+bool SDLConnectionDialog::hide()
+{
+	std::lock_guard lock(_mux);
+	return show(MSG_DISCARD);
+}
+
+bool SDLConnectionDialog::running() const
+{
+	std::lock_guard lock(_mux);
+	return _running;
+}
+
+bool SDLConnectionDialog::update()
+{
+	std::lock_guard lock(_mux);
+	switch (_type)
+	{
+		case MSG_INFO:
+		case MSG_WARN:
+		case MSG_ERROR:
+			createWindow();
+			break;
+		case MSG_DISCARD:
+			resetTimer();
+			destroyWindow();
+			break;
+		default:
+			if (_window)
+			{
+				SDL_SetWindowTitle(_window, _title.c_str());
+			}
+			break;
+	}
+	_type = MSG_NONE;
+	return true;
+}
+
+bool SDLConnectionDialog::setModal()
+{
+	if (_window)
+	{
+		auto sdl = get_context(_context);
+		if (sdl->windows.empty())
+			return true;
+
+		auto parent = sdl->windows.front().window;
+		SDL_SetWindowModalFor(_window, parent);
+		SDL_RaiseWindow(_window);
+	}
+	return true;
+}
+
+bool SDLConnectionDialog::clearWindow(SDL_Renderer* renderer)
+{
+	assert(renderer);
+
+	const int drc = SDL_SetRenderDrawColor(renderer, backgroundcolor.r, backgroundcolor.g,
+	                                       backgroundcolor.b, backgroundcolor.a);
+	if (widget_log_error(drc, "SDL_SetRenderDrawColor"))
+		return false;
+
+	const int rcls = SDL_RenderClear(renderer);
+	return !widget_log_error(rcls, "SDL_RenderClear");
+}
+
+bool SDLConnectionDialog::update(SDL_Renderer* renderer)
+{
+	if (!renderer)
+		return false;
+
+	if (!clearWindow(renderer))
+		return false;
+
+	for (auto& btn : _list)
+	{
+		if (!btn.update_text(renderer, _msg, textcolor))
+			return false;
+	}
+
+	if (!_buttons.update(renderer))
+		return false;
+
+	SDL_RenderPresent(renderer);
+	return true;
+}
+
+bool SDLConnectionDialog::wait(bool ignoreRdpContext)
+{
+	while (running())
+	{
+		if (!ignoreRdpContext)
+		{
+			if (freerdp_shall_disconnect_context(_context))
+				return false;
+		}
+		std::this_thread::yield();
+	}
+	return true;
+}
+
+bool SDLConnectionDialog::handle(const SDL_Event& event)
+{
+	Uint32 windowID = 0;
+	if (_window)
+	{
+		windowID = SDL_GetWindowID(_window);
+	}
+
+	switch (event.type)
+	{
+		case SDL_USEREVENT_RETRY_DIALOG:
+			return update();
+		case SDL_QUIT:
+			resetTimer();
+			destroyWindow();
+			return false;
+		case SDL_KEYDOWN:
+		case SDL_KEYUP:
+		{
+			auto ev = reinterpret_cast<const SDL_KeyboardEvent&>(event);
+			update(_renderer);
+			return windowID == ev.windowID;
+		}
+		case SDL_MOUSEBUTTONDOWN:
+		case SDL_MOUSEBUTTONUP:
+		{
+			auto ev = reinterpret_cast<const SDL_MouseButtonEvent&>(event);
+			update(_renderer);
+			return windowID == ev.windowID;
+		}
+		break;
+		case SDL_MOUSEWHEEL:
+		{
+			auto ev = reinterpret_cast<const SDL_MouseWheelEvent&>(event);
+			update(_renderer);
+			return windowID == ev.windowID;
+		}
+		break;
+		case SDL_FINGERUP:
+		case SDL_FINGERDOWN:
+		{
+			auto ev = reinterpret_cast<const SDL_TouchFingerEvent&>(event);
+			update(_renderer);
+			return windowID == ev.windowID;
+		}
+		case SDL_WINDOWEVENT:
+		{
+			auto ev = reinterpret_cast<const SDL_WindowEvent&>(event);
+			switch (ev.event)
+			{
+				case SDL_WINDOWEVENT_CLOSE:
+					if (windowID == ev.windowID)
+					{
+						resetTimer();
+						destroyWindow();
+					}
+					break;
+				default:
+					update(_renderer);
+					setModal();
+					break;
+			}
+
+			return windowID == ev.windowID;
+		}
+		default:
+			return false;
+	}
+}
+
+bool SDLConnectionDialog::createWindow()
+{
+	destroyWindow();
+
+	const size_t widget_height = 50;
+	const size_t widget_width = 600;
+	const size_t total_height = 400;
+
+	_window = SDL_CreateWindow(_title.c_str(), SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
+	                           widget_width, total_height, 0);
+	if (_window == nullptr)
+	{
+		widget_log_error(-1, "SDL_CreateWindow");
+		return false;
+	}
+	setModal();
+
+	_renderer = SDL_CreateRenderer(_window, -1, SDL_RENDERER_ACCELERATED);
+	if (_renderer == nullptr)
+	{
+		widget_log_error(-1, "SDL_CreateRenderer");
+		return false;
+	}
+
+	SDL_Rect rect = { 0, 0, widget_width, widget_height };
+	_list.push_back(SdlWidget(_renderer, rect, false));
+	rect.y += widget_height + vpadding;
+
+	const std::vector<int> buttonids = { 1 };
+	const std::vector<std::string> buttonlabels = { "cancel" };
+	_buttons.populate(_renderer, buttonlabels, buttonids, static_cast<Sint32>(total_height),
+	                  static_cast<Sint32>(widget_width / 2), static_cast<Sint32>(widget_height));
+
+	SDL_ShowWindow(_window);
+	SDL_RaiseWindow(_window);
+
+	return true;
+}
+
+void SDLConnectionDialog::destroyWindow()
+{
+	_buttons.clear();
+	_list.clear();
+	SDL_DestroyRenderer(_renderer);
+	SDL_DestroyWindow(_window);
+	_renderer = nullptr;
+	_window = nullptr;
+}
+
+bool SDLConnectionDialog::show(MsgType type, const char* fmt, va_list ap)
+{
+	std::lock_guard lock(_mux);
+	_msg = print(fmt, ap);
+	return show(type);
+}
+
+bool SDLConnectionDialog::show(MsgType type)
+{
+	_type = type;
+	return sdl_push_user_event(SDL_USEREVENT_RETRY_DIALOG);
+}
+
+std::string SDLConnectionDialog::print(const char* fmt, va_list ap)
+{
+	int size = -1;
+	std::string res;
+
+	do
+	{
+		res.resize(128);
+		if (size > 0)
+			res.resize(size);
+
+		va_list copy;
+		va_copy(copy, ap);
+		size = vsnprintf(res.data(), res.size(), fmt, copy);
+		va_end(copy);
+
+	} while ((size > 0) && (size > res.size()));
+
+	return res;
+}
+
+bool SDLConnectionDialog::setTimer(Uint32 timeoutMS)
+{
+	std::lock_guard lock(_mux);
+	resetTimer();
+
+	_timer = SDL_AddTimer(timeoutMS, &SDLConnectionDialog::timeout, this);
+	_running = true;
+	return true;
+}
+
+void SDLConnectionDialog::resetTimer()
+{
+	if (_running)
+		SDL_RemoveTimer(_timer);
+	_running = false;
+}
+
+Uint32 SDLConnectionDialog::timeout(Uint32 intervalMS, void* pvthis)
+{
+	auto ths = static_cast<SDLConnectionDialog*>(pvthis);
+	ths->hide();
+	ths->_running = false;
+	return 0;
+}