mirror of
https://github.com/scummvm/scummvm.git
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130 lines
3.6 KiB
C++
130 lines
3.6 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifdef __EMSCRIPTEN__
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#define FORBIDDEN_SYMBOL_EXCEPTION_FILE
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#define FORBIDDEN_SYMBOL_EXCEPTION_getenv
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#include <emscripten.h>
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#include "backends/platform/sdl/emscripten/emscripten.h"
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#include "common/file.h"
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// Inline JavaScript, see https://emscripten.org/docs/api_reference/emscripten.h.html#inline-assembly-javascript for details
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EM_JS(bool, isFullscreen, (), {
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return !!document.fullscreenElement;
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});
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EM_JS(void, toggleFullscreen, (bool enable), {
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let canvas = document.getElementById('canvas');
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if (enable && !document.fullscreenElement) {
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canvas.requestFullscreen();
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}
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if (!enable && document.fullscreenElement) {
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document.exitFullscreen();
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}
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});
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EM_JS(void, downloadFile, (const char *filenamePtr, char *dataPtr, int dataSize), {
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const view = new Uint8Array(Module.HEAPU8.buffer, dataPtr, dataSize);
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const blob = new Blob([view], {
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type:
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'octet/stream'
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});
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const filename = UTF8ToString(filenamePtr);
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setTimeout(() => {
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const a = document.createElement('a');
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a.style = 'display:none';
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document.body.appendChild(a);
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const url = window.URL.createObjectURL(blob);
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a.href = url;
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a.download = filename;
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a.click();
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window.URL.revokeObjectURL(url);
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document.body.removeChild(a);
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}, 0);
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});
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// Overridden functions
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bool OSystem_Emscripten::hasFeature(Feature f) {
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if (f == kFeatureFullscreenMode)
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return true;
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if (f == kFeatureNoQuit)
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return true;
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return OSystem_POSIX::hasFeature(f);
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}
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bool OSystem_Emscripten::getFeatureState(Feature f) {
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if (f == kFeatureFullscreenMode) {
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return isFullscreen();
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} else {
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return OSystem_POSIX::getFeatureState(f);
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}
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}
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void OSystem_Emscripten::setFeatureState(Feature f, bool enable) {
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if (f == kFeatureFullscreenMode) {
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toggleFullscreen(enable);
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} else {
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OSystem_POSIX::setFeatureState(f, enable);
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}
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}
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Common::Path OSystem_Emscripten::getDefaultLogFileName() {
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return Common::Path("/tmp/scummvm.log");
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}
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Common::Path OSystem_Emscripten::getDefaultConfigFileName() {
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return Common::Path(Common::String::format("%s/scummvm.ini", getenv("HOME")));
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}
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Common::Path OSystem_Emscripten::getScreenshotsPath() {
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return Common::Path("/tmp/");
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}
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bool OSystem_Emscripten::displayLogFile() {
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if (_logFilePath.empty())
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return false;
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exportFile(_logFilePath);
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return true;
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}
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void OSystem_Emscripten::exportFile(const Common::Path &filename) {
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Common::File file;
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Common::FSNode node(filename);
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file.open(node);
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if (!file.isOpen()) {
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warning("Could not open file %s!", filename.toString(Common::Path::kNativeSeparator).c_str());
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return;
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}
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Common::String exportName = filename.getLastComponent().toString(Common::Path::kNativeSeparator);
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const int32 size = file.size();
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char *bytes = new char[size + 1];
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file.read(bytes, size);
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file.close();
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downloadFile(exportName.c_str(), bytes, size);
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delete[] bytes;
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}
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#endif
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