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Diffstat (limited to 'tests/manual/wasm/clipboard/mainwindow.cpp')
-rw-r--r-- | tests/manual/wasm/clipboard/mainwindow.cpp | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/tests/manual/wasm/clipboard/mainwindow.cpp b/tests/manual/wasm/clipboard/mainwindow.cpp new file mode 100644 index 0000000000..81a95c4218 --- /dev/null +++ b/tests/manual/wasm/clipboard/mainwindow.cpp @@ -0,0 +1,314 @@ +// Copyright (C) 2021 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only + +#undef QT_NO_FOREACH // this file contains unported legacy Q_FOREACH uses + +#include "mainwindow.h" +#include "ui_mainwindow.h" +#include <QClipboard> +#include <QMimeData> +#include <QImageReader> +#include <QBuffer> +#include <QRandomGenerator> +#include <QPainter> +#include <QKeyEvent> +#include <QMimeDatabase> +#include <QFileInfo> +#include <QCryptographicHash> + +#ifdef Q_OS_WASM +#include <emscripten.h> +#include <emscripten/html5.h> +#include <emscripten/val.h> +#include <emscripten/bind.h> + +using namespace emscripten; +#endif + +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent) + , ui(new Ui::MainWindow) +{ + ui->setupUi(this); + + ui->imageLabel->installEventFilter(this); + + ui->imageLabel->setBackgroundRole(QPalette::Base); + ui->imageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored); + ui->imageLabel->setScaledContents(true); + + setAcceptDrops(true); + + clipboard = QGuiApplication::clipboard(); + connect( + clipboard, &QClipboard::dataChanged, + [=]() { + ui->textEdit_2->insertHtml("<b>Clipboard data changed:</b><br>"); + const QMimeData *mimeData = clipboard->mimeData(); + QByteArray ba; + + for (auto mimetype : mimeData->formats()) { + qDebug() << Q_FUNC_INFO << mimetype; + ba = mimeData->data(mimetype); + } + QString sizeStr; + + if (mimeData->hasImage()) { + qsizetype imageSize = qvariant_cast<QImage>(mimeData->imageData()).sizeInBytes(); + sizeStr.setNum(imageSize); + ui->textEdit_2->insertHtml("has Image data: " + sizeStr + "<br>"); + } + + if (mimeData->hasHtml()) { + int size = mimeData->html().length(); + sizeStr.setNum(size); + ui->textEdit_2->insertHtml("has html data: " + sizeStr + "<br>"); + } + if (mimeData->hasText()) { + int size = mimeData->text().length(); + sizeStr.setNum(size); + ui->textEdit_2->insertHtml("has text data: " + sizeStr + "<br>"); + } + + ui->textEdit_2->insertHtml(mimeData->formats().join(" | ")+ "<br>"); + + ui->textEdit_2->ensureCursorVisible(); + + const QString message = tr("Clipboard changed, %1 ") + .arg(mimeData->formats().join(' ')); + + statusBar()->showMessage(message + sizeStr); + } + ); +#ifdef Q_OS_WASM + val clipboard = val::global("navigator")["clipboard"]; + bool hasClipboardApi = (!clipboard.isUndefined() && !clipboard["readText"].isUndefined()); + QString messageApi; + if (hasClipboardApi) + messageApi = QStringLiteral("Using Clipboard API"); + else + messageApi = QStringLiteral("Using Clipboard events"); + ui->label->setText(messageApi); +#else + ui->label->setText("desktop clipboard"); +#endif +} + +MainWindow::~MainWindow() +{ + delete ui; +} + +void MainWindow::on_setTextButton_clicked() +{ + QGuiApplication::clipboard()->setText(ui->textEdit->textCursor().selectedText()); +} + +static QImage clipboardImage() +{ + if (const QMimeData *mimeData = QGuiApplication::clipboard()->mimeData()) { + if (mimeData->hasImage()) { + const QImage image = qvariant_cast<QImage>(mimeData->imageData()); + if (!image.isNull()) + return image; + } + } + return QImage(); +} + +static QByteArray clipboardBinary() +{ + if (const QMimeData *mimeData = QGuiApplication::clipboard()->mimeData()) { + + if (mimeData->formats().contains("application/octet-stream")) { + const QByteArray ba = qvariant_cast<QByteArray>(mimeData->data("application/octet-stream")); + qDebug() << Q_FUNC_INFO << ba; + if (!ba.isNull()) + return ba; + } + } + return QByteArray(); +} + +void MainWindow::on_pasteImageButton_clicked() +{ + const QImage newImage = clipboardImage(); + if (newImage.isNull()) { + qDebug() << "No image in clipboard"; + const QString message = tr("No image in clipboard") + .arg(newImage.width()).arg(newImage.height()).arg(newImage.depth()); + statusBar()->showMessage(message); + } else { + setImage(newImage); + setWindowFilePath(QString()); + const QString message = tr("Obtained image from clipboard, %1x%2, Depth: %3") + .arg(newImage.width()).arg(newImage.height()).arg(newImage.depth()); + statusBar()->showMessage(message); + } +} + +void MainWindow::setImage(const QImage &newImage) +{ + image = newImage; + ui->imageLabel->setPixmap(QPixmap::fromImage(image)); +} + +void MainWindow::on_pasteTextButton_clicked() +{ + ui->textEdit->insertPlainText(QGuiApplication::clipboard()->text()); +} + +void MainWindow::on_copyBinaryButton_clicked() +{ + QByteArray ba; + ba.resize(10); + ba[0] = 0x3c; + ba[1] = 0xb8; + ba[2] = 0x64; + ba[3] = 0x18; + ba[4] = 0xca; + ba[5] = 0xca; + ba[6] = 0x18; + ba[7] = 0x64; + ba[8] = 0xb8; + ba[9] = 0x3c; + + QMimeData *mimeData = new QMimeData(); + mimeData->setData("application/octet-stream", ba); + QGuiApplication::clipboard()->setMimeData(mimeData); + + const QString message = tr("Copied binary to clipboard: " + ba + " 10 bytes"); + statusBar()->showMessage(message); +} + +void MainWindow::on_pasteBinaryButton_clicked() +{ + const QByteArray ba = clipboardBinary(); + if (ba.isNull()) { + qDebug() << "No binary in clipboard"; + const QString message = tr("No binary in clipboard"); + statusBar()->showMessage(message); + } else { + setWindowFilePath(QString()); + const QString message = tr("Obtained binary from clipboard: " + ba); + statusBar()->showMessage(message); + } +} + +void MainWindow::on_comboBox_textActivated(const QString &arg1) +{ + QImage image(QSize(150,100), QImage::Format_RGB32); + QPainter painter(&image); + painter.fillRect(QRectF(0,0,150,100),generateRandomColor()); + painter.fillRect(QRectF(20,30,130,40),generateRandomColor()); + painter.setPen(QPen(generateRandomColor())); + painter.drawText(QRect(25,30,130,40),"Qt WebAssembly"); + + QByteArray ba; + QBuffer buffer(&ba); + buffer.open(QIODevice::WriteOnly); + image.save(&buffer, arg1.toLocal8Bit()); + + qDebug() << ba.mid(0,10) << ba.length(); + qDebug() << Q_FUNC_INFO << image.sizeInBytes(); + + QGuiApplication::clipboard()->setImage(image); +} + +QColor MainWindow::generateRandomColor() +{ + return QColor::fromRgb(QRandomGenerator::global()->generate()); +} + +bool MainWindow::eventFilter(QObject *obj, QEvent *event) +{ + if (event->type() == QEvent::KeyPress) { + QKeyEvent *ke = static_cast<QKeyEvent *>(event); + if (ke->key() == Qt::Key_V && ke->modifiers().testFlag(Qt::ControlModifier)) { + if (obj == ui->imageLabel) { + setImage(clipboardImage()); + return true; + } + } + } + // standard event processing + return QObject::eventFilter(obj, event); +} + +void MainWindow::on_pasteHtmlButton_clicked() +{ + ui->textEdit->insertHtml(QGuiApplication::clipboard()->mimeData()->html()); +} + +void MainWindow::on_clearButton_clicked() +{ + ui->textEdit_2->clear(); + ui->imageLabel->clear(); + ui->imageLabel->setText("Paste or drop image here"); +} + +void MainWindow::dragEnterEvent(QDragEnterEvent* e) +{ + e->acceptProposedAction(); +} + +void MainWindow::dropEvent(QDropEvent* e) +{ + QString sizeStr; + ui->textEdit_2->insertPlainText("New Drop has mime formats: " + e->mimeData()->formats().join(", ") + "\n"); + + QString urlMessage = QString(" Drop contains %1 urls\n").arg(e->mimeData()->urls().count()); + ui->textEdit_2->insertPlainText(urlMessage); + + foreach (const QUrl &url, e->mimeData()->urls()) { + + QString urlStr = url.toDisplayString(); + int size = urlStr.length(); + sizeStr.setNum(size); + + QString fileName = url.toLocalFile(); + QString sha1; + QFile file(fileName); + if (file.exists()) { + file.open(QFile::ReadOnly); + sha1 = QCryptographicHash::hash(file.readAll(), QCryptographicHash::Sha1).toHex(); + } + + ui->textEdit_2->insertPlainText(" Drop has url data length: " + sizeStr + "\n"); + ui->textEdit_2->insertPlainText(" " + urlStr + " sha1 " + sha1.left(8) + "\n"); + } + ui->textEdit_2->insertPlainText("\n"); + + if (e->mimeData()->hasImage()) { + qsizetype imageSize = qvariant_cast<QImage>(e->mimeData()->imageData()).sizeInBytes(); + sizeStr.setNum(imageSize); + ui->textEdit_2->insertPlainText(" Drop has Image data length: " + sizeStr + "\n"); + QImage image = qvariant_cast<QImage>(e->mimeData()->imageData()); + setImage(image); + const QString message = tr("Obtained image from drop, %1x%2, Depth: %3") + .arg(image.width()).arg(image.height()).arg(image.depth()); + statusBar()->showMessage(message); + } + + if (e->mimeData()->hasHtml()) { + int size = e->mimeData()->html().length(); + sizeStr.setNum(size); + ui->textEdit_2->insertPlainText(" Drop has html data length: " + sizeStr + "\n"); + for (const auto &line : e->mimeData()->html().split('\n', Qt::SkipEmptyParts)) + ui->textEdit_2->insertPlainText(" " + line + "\n"); + } + if (e->mimeData()->hasText()) { + int size = e->mimeData()->text().length(); + sizeStr.setNum(size); + ui->textEdit_2->insertPlainText(" Drop has text data length: " + sizeStr + "\n"); + for (const auto &line : e->mimeData()->text().split('\n', Qt::SkipEmptyParts)) + ui->textEdit_2->insertPlainText(" " + line + "\n"); + } + + const QString message = tr(" Drop accepted, %1 ") + .arg(e->mimeData()->formats().join(' ')); + + statusBar()->showMessage(message + sizeStr); + + e->acceptProposedAction(); +} |