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Add support for pasting images into a room (#180)

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fixes #132
This commit is contained in:
christarazi 2018-01-09 23:52:59 -08:00 • committed by mujx
parent 53f670096c
commit ddfce136ed
22 changed files with 388 additions and 73 deletions
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65
src/TextInputWidget.cc
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@ -16,10 +16,13 @@
*/
#include <QAbstractTextDocumentLayout>
#include <QApplication>
#include <QBuffer>
#include <QClipboard>
#include <QDebug>
#include <QFile>
#include <QFileDialog>
#include <QImageReader>
#include <QMimeData>
#include <QMimeDatabase>
#include <QMimeType>
#include <QPainter>
@ -33,6 +36,7 @@ static constexpr size_t INPUT_HISTORY_SIZE = 127;
FilteredTextEdit::FilteredTextEdit(QWidget *parent)
: QTextEdit{parent}
, history_index_{0}
, previewDialog_{parent}
{
connect(document()->documentLayout(),
&QAbstractTextDocumentLayout::documentSizeChanged,
@ -50,6 +54,12 @@ FilteredTextEdit::FilteredTextEdit(QWidget *parent)
typingTimer_->setSingleShot(true);
connect(typingTimer_, &QTimer::timeout, this, &FilteredTextEdit::stopTyping);
connect(&previewDialog_,
&dialogs::PreviewImageOverlay::confirmImageUpload,
this,
&FilteredTextEdit::receiveImage);
previewDialog_.hide();
}
void
@ -101,6 +111,42 @@ FilteredTextEdit::keyPressEvent(QKeyEvent *event)
}
}
bool
FilteredTextEdit::canInsertFromMimeData(const QMimeData *source) const
{
return (source->hasImage() || QTextEdit::canInsertFromMimeData(source));
}
void
FilteredTextEdit::insertFromMimeData(const QMimeData *source)
{
if (source->hasImage()) {
const auto formats = source->formats();
const auto idx = formats.indexOf(
QRegularExpression{"image/.+", QRegularExpression::CaseInsensitiveOption});
// Note: in the future we may want to look into what the best choice is from the
// formats list. For now we will default to PNG format.
QString type = "png";
if (idx != -1) {
type = formats.at(idx).split('/')[1];
}
// Encode raw pixel data of image.
QByteArray data = source->data("image/" + type);
previewDialog_.setImageAndCreate(data, type);
previewDialog_.show();
} else if (source->hasFormat("x-special/gnome-copied-files") &&
QImageReader{source->text()}.canRead()) {
// Special case for X11 users. See "Notes for X11 Users" in source.
// Source: http://doc.qt.io/qt-5/qclipboard.html
previewDialog_.setImageAndCreate(source->text());
previewDialog_.show();
} else {
QTextEdit::insertFromMimeData(source);
}
}
void
FilteredTextEdit::stopTyping()
{
@ -146,6 +192,7 @@ FilteredTextEdit::submit()
history_index_ = 0;
QString text = toPlainText();
if (text.startsWith('/')) {
int command_end = text.indexOf(' ');
if (command_end == -1)
@ -170,6 +217,14 @@ FilteredTextEdit::textChanged()
working_history_[history_index_] = toPlainText();
}
void
FilteredTextEdit::receiveImage(const QByteArray img, const QString &img_name)
{
QSharedPointer<QBuffer> buffer{new QBuffer{this}};
buffer->setData(img);
emit image(buffer, img_name);
}
TextInputWidget::TextInputWidget(QWidget *parent)
: QFrame(parent)
{
@ -231,6 +286,7 @@ TextInputWidget::TextInputWidget(QWidget *parent)
connect(sendFileBtn_, SIGNAL(clicked()), this, SLOT(openFileSelection()));
connect(input_, &FilteredTextEdit::message, this, &TextInputWidget::sendTextMessage);
connect(input_, &FilteredTextEdit::command, this, &TextInputWidget::command);
connect(input_, &FilteredTextEdit::image, this, &TextInputWidget::uploadImage);
connect(emojiBtn_,
SIGNAL(emojiSelected(const QString &)),
this,
@ -289,12 +345,13 @@ TextInputWidget::openFileSelection()
const auto format = mime.name().split("/")[0];
QSharedPointer<QFile> file{new QFile{fileName, this}};
if (format == "image")
emit uploadImage(fileName);
emit uploadImage(file, fileName);
else if (format == "audio")
emit uploadAudio(fileName);
emit uploadAudio(file, fileName);
else
emit uploadFile(fileName);
emit uploadFile(file, fileName);
showUploadSpinner();
}