Initial commit

backends/dlc/dlcmanager.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "common/system.h"
+
+#include "backends/dlc/dlcmanager.h"
+#include "backends/dlc/dlcdesc.h"
+#include "backends/dlc/scummvmcloud.h"
+
+#include "gui/dlcsdialog.h"
+#include "gui/launcher.h"
+
+namespace Common {
+
+DECLARE_SINGLETON(DLC::DLCManager);
+
+}
+
+namespace DLC {
+
+DLCManager::DLCManager() : CommandSender(nullptr) {
+	_store = g_system->getDLCStore();
+}
+
+DLCManager::~DLCManager() {
+	for (uint32 i = 0; i < _dlcs.size(); ++i) {
+		delete _dlcs[i];
+	}
+}
+
+void DLCManager::init() {}
+
+void DLCManager::getAllDLCs() {
+	_store->getAllDLCs();
+}
+
+void DLCManager::refreshDLCList() {
+	sendCommand(GUI::kRefreshDLCList, 0);
+}
+
+void DLCManager::refreshLauncherGameList() {
+	if (_launcher) {
+		_launcher->rebuild();
+	}
+}
+
+void DLCManager::setLauncher(GUI::LauncherDialog *launcher) {
+	_launcher = launcher;
+}
+
+void DLCManager::addDownload(uint32 idx) {
+	if (_dlcs[idx]->state == DLCDesc::kInProgress) {
+		// if DLC is already in queue, don't add again
+		return;
+	}
+	_dlcs[idx]->state = DLCDesc::kInProgress;
+	_queuedDownloadTasks.push(_dlcs[idx]);
+	_dlcsInProgress.push_back(_dlcs[idx]);
+	if (!_isDLCDownloading) {
+		// if queue is not already processing
+		DLCManager::processDownloadQueue();
+	}
+}
+
+void DLCManager::processDownloadQueue() {
+	_currentDownloadedSize = 0;
+	_isDLCDownloading = true;
+	if (!_queuedDownloadTasks.empty()) {
+		if (_queuedDownloadTasks.front()->state == DLCDesc::kInProgress) {
+			_currentDownloadingDLC = _queuedDownloadTasks.front()->id;
+			DLCManager::startDownloadAsync(_queuedDownloadTasks.front()->id, _queuedDownloadTasks.front()->url);
+		} else {
+			// state is already cancelled/downloaded -> skip download
+			_queuedDownloadTasks.pop();
+			_dlcsInProgress.remove_at(0);
+			// process next download in the queue
+			processDownloadQueue();
+		}
+	} else {
+		// no more download in queue
+		_isDLCDownloading = false;
+		_currentDownloadingDLC = "";
+	}
+}
+
+void DLCManager::startDownloadAsync(const Common::String &id, const Common::String &url) {
+	_store->startDownloadAsync(id, url);
+}
+
+bool DLCManager::cancelDownload(uint32 idx) {
+	if (_queuedDownloadTasks.front()->idx == idx) {
+		// if already downloading, interrupt startDownloadAsync
+		_interruptCurrentDownload = true;
+	} else {
+		// if not started, skip it in processDownload()
+		_dlcs[idx]->state = DLCDesc::kCancelled;
+		DLCMan.refreshDLCList();
+	}
+	return true;
+}
+
+Common::String DLCManager::getCurrentDownloadingDLC() const {
+	return _currentDownloadingDLC;
+}
+
+uint DLCManager::getDLCIdxFromId(const Common::String &id) const {
+	for (uint32 i = 0; i < _dlcs.size(); ++i) {
+		if (_dlcs[i]->id == id) return i;
+	}
+	return -1;
+}
+
+} // End of namespace DLC