diff options
Diffstat (limited to 'src/plugins/platforms/wasm/qwasmclipboard.cpp')
-rw-r--r-- | src/plugins/platforms/wasm/qwasmclipboard.cpp | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/plugins/platforms/wasm/qwasmclipboard.cpp b/src/plugins/platforms/wasm/qwasmclipboard.cpp new file mode 100644 index 0000000000..ec058f05dd --- /dev/null +++ b/src/plugins/platforms/wasm/qwasmclipboard.cpp @@ -0,0 +1,204 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:GPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 or (at your option) any later version +** approved by the KDE Free Qt Foundation. The licenses are as published by +** the Free Software Foundation and appearing in the file LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwasmclipboard.h" +#include "qwasmwindow.h" + +#include <emscripten.h> +#include <emscripten/html5.h> +#include <emscripten/bind.h> + +#include <QCoreApplication> +#include <qpa/qwindowsysteminterface.h> + +using namespace emscripten; + +// there has got to be a better way... +static QByteArray g_clipboardArray; +static QByteArray g_clipboardFormat; + +static val getClipboardData() +{ + return val(g_clipboardArray.constData()); +} + +static val getClipboardFormat() +{ + return val(g_clipboardFormat.constData()); +} + +static void pasteClipboardData(emscripten::val format, emscripten::val dataPtr) +{ + QString formatString = QString::fromStdString(format.as<std::string>()); + QByteArray dataArray = QByteArray::fromStdString(dataPtr.as<std::string>()); + QMimeData *mMimeData = new QMimeData; + mMimeData->setData(formatString, dataArray); + QWasmClipboard::qWasmClipboardPaste(mMimeData); +} + +static void qClipboardPromiseResolve(emscripten::val something) +{ + pasteClipboardData(emscripten::val("text/plain"), something); +} + +static void qClipboardCopyTo(val event) +{ + val target = event["target"]; + val clipboard = event["clipboardData"]; + + val module = val::global("Module"); + val clipdata = module.call<val>("getClipboardData"); + val clipFormat = module.call<val>("getClipboardFormat"); + clipboard.call<void>("setData", clipFormat, clipdata); + target.call<void>("preventDefault"); +} + +static void qClipboardPasteTo(val event) +{ + val target = event["clipboardData"]; + val module = val::global("Module"); + val clipdata = module.call<val>("getClipboardData"); + + const std::string data = clipdata.as<std::string>(); + if (data.length() > 0) { + QString qstr = QString::fromStdString(data); + QMimeData *mMimeData = new QMimeData; + mMimeData->setText(qstr); + QWasmClipboard::qWasmClipboardPaste(mMimeData); + } +} + +EMSCRIPTEN_BINDINGS(clipboard_module) { + function("getClipboardData", &getClipboardData); + function("getClipboardFormat", &getClipboardFormat); + function("pasteClipboardData", &pasteClipboardData); + function("qClipboardPromiseResolve", &qClipboardPromiseResolve); + function("qClipboardCopyTo", &qClipboardCopyTo); + function("qClipboardPasteTo", &qClipboardPasteTo); +} + +QWasmClipboard::QWasmClipboard() : + hasClipboardApi(false) +{ + initClipboardEvents(); +} + +QWasmClipboard::~QWasmClipboard() +{ + g_clipboardArray.clear(); + g_clipboardFormat.clear(); +} + +QMimeData* QWasmClipboard::mimeData(QClipboard::Mode mode) +{ + if (mode != QClipboard::Clipboard) + return nullptr; + + return QPlatformClipboard::mimeData(mode); +} + +void QWasmClipboard::setMimeData(QMimeData* mimeData, QClipboard::Mode mode) +{ + if (mimeData->hasText()) { + g_clipboardFormat = mimeData->formats().at(0).toUtf8(); + g_clipboardArray = mimeData->text().toUtf8(); + } else if (mimeData->hasHtml()) { + g_clipboardFormat =mimeData->formats().at(0).toUtf8(); + g_clipboardArray = mimeData->html().toUtf8(); + } + + QPlatformClipboard::setMimeData(mimeData, mode); +} + +bool QWasmClipboard::supportsMode(QClipboard::Mode mode) const +{ + return mode == QClipboard::Clipboard; +} + +bool QWasmClipboard::ownsMode(QClipboard::Mode mode) const +{ + Q_UNUSED(mode); + return false; +} + +void QWasmClipboard::qWasmClipboardPaste(QMimeData *mData) +{ + QWasmIntegration::get()->clipboard()->setMimeData(mData, QClipboard::Clipboard); + + QWindowSystemInterface::handleKeyEvent<QWindowSystemInterface::SynchronousDelivery>( + 0, QEvent::KeyPress, Qt::Key_V, Qt::ControlModifier, "V"); +} + +void QWasmClipboard::initClipboardEvents() +{ + val navigator = val::global("navigator"); + val permissions = navigator["permissions"]; + val clipboard = navigator["clipboard"]; + + hasClipboardApi = (!clipboard.isUndefined()); + if (hasClipboardApi) { + val readPermissionsMap = val::object(); + readPermissionsMap.set("name", val("clipboard-read")); + permissions.call<val>("query", readPermissionsMap); + + val writePermissionsMap = val::object(); + writePermissionsMap.set("name", val("clipboard-write")); + permissions.call<val>("query", writePermissionsMap); + + } else { + + val window = val::global("window"); + window.call<void>("addEventListener", std::string("paste"), + val::module_property("qClipboardPasteTo")); + + window.call<void>("addEventListener", std::string("copy"), + val::module_property("qClipboardCopyTo")); + } +} + +void QWasmClipboard::readTextFromClipboard() +{ + if (QWasmIntegration::get()->getWasmClipboard()->hasClipboardApi) { + val navigator = val::global("navigator"); + val textPromise = navigator["clipboard"].call<val>("readText"); + val readTextResolve = val::global("Module")["qClipboardPromiseResolve"]; + textPromise.call<val>("then", readTextResolve); + } +} + +void QWasmClipboard::writeTextToClipboard() +{ + if (QWasmIntegration::get()->getWasmClipboard()->hasClipboardApi) { + val module = val::global("Module"); + val txt = module.call<val>("getClipboardData"); + val format = module.call<val>("getClipboardFormat"); + val navigator = val::global("navigator"); + navigator["clipboard"].call<void>("writeText", txt.as<std::string>()); + } +} |