Differential D20266 Diff 56059 applets/notifications/thumbnailer.cpp

Changeset View

Standalone View

applets/notifications/thumbnailer.cpp

This file was added.

		1		/*
		2		Copyright (C) 2016 Kai Uwe Broulik <kde@privat.broulik.de>
		3
		4		This library is free software; you can redistribute it and/or
		5		modify it under the terms of the GNU Lesser General Public
		6		License as published by the Free Software Foundation; either
		7		version 2.1 of the License, or (at your option) any later version.
		8
		9		This library is distributed in the hope that it will be useful,
		10		but WITHOUT ANY WARRANTY; without even the implied warranty of
		11		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		12		Lesser General Public License for more details.
		13
		14		You should have received a copy of the GNU Lesser General Public
		15		License along with this library; if not, write to the Free Software
		16		Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
		17		*/
		18
		19		#include "thumbnailer.h"
		20
		21		#include <KIO/PreviewJob>
		22
		23		#include <QApplication>
		24		#include <QClipboard>
		25		#include <QIcon>
		26		#include <QMimeData>
		27		#include <QMenu>
		28		#include <QQuickItem>
		29		#include <QTimer>
		30		#include <QQuickWindow>
		31
		32		#include <KFileItemActions>
		33		#include <KFileItemListProperties>
		34		#include <KLocalizedString>
		35		#include <KProtocolManager>
		36		#include <KPropertiesDialog>
		37		#include <KUrlMimeData>
		38
		39		#include <KIO/OpenFileManagerWindowJob>
		40
		41		Thumbnailer::Thumbnailer(QObject *parent) : QObject(parent)
		42		{
		43
		44		}
		45
		46		Thumbnailer::~Thumbnailer() = default;
		47
		48		void Thumbnailer::classBegin()
		49		{
		50
		51		}
		52
		53		void Thumbnailer::componentComplete()
		54		{
		55		m_inited = true;
		56		generatePreview();
		57		}
		58
		59		QUrl Thumbnailer::url() const
		60		{
		61		return m_url;
		62		}
		63
		64		void Thumbnailer::setUrl(const QUrl &url)
		65		{
		66		if (m_url != url) {
		67		m_url = url;
		68		emit urlChanged();
		69
		70		generatePreview();
		71		}
		72		}
		73
		74		QSize Thumbnailer::size() const
		75		{
		76		return m_size;
		77		}
		78
		79		void Thumbnailer::setSize(const QSize &size)
		80		{
		81		if (m_size != size) {
		82		m_size = size;
		83		emit sizeChanged();
		84
		85		generatePreview();
		86		}
		87		}
		88
		89		bool Thumbnailer::busy() const
		90		{
		91		return m_busy;
		92		}
		93
		94		bool Thumbnailer::hasPreview() const
		95		{
		96		return !m_pixmap.isNull();
		97		}
		98
		99		QPixmap Thumbnailer::pixmap() const
		100		{
		101		return m_pixmap;
		102		}
		103
		104		QSize Thumbnailer::pixmapSize() const
		105		{
		106		return m_pixmap.size();
		107		}
		108
		109		QString Thumbnailer::iconName() const
		110		{
		111		return m_iconName;
		112		}
		113
		114		bool Thumbnailer::menuVisible() const
		115		{
		116		return m_menuVisible;
		117		}
		118
		119		void Thumbnailer::generatePreview()
		120		{
		121		if (!m_inited) {
		122		return;
		123		}
		124
		125		if (!m_url.isValid() \|\| !m_url.isLocalFile() \|\| !m_size.isValid()) {
		126		return;
		127		}
		128
		129		auto maxSize = qMax(m_size.width(), m_size.height());
		130		KIO::PreviewJob *job = KIO::filePreview(KFileItemList({KFileItem(m_url)}), QSize(maxSize,maxSize));
		131		job->setScaleType(KIO::PreviewJob::Scaled);
		132		job->setIgnoreMaximumSize(true);
		133
		134		connect(job, &KIO::PreviewJob::gotPreview, this, [this](const KFileItem &item, const QPixmap &preview) {
		135		Q_UNUSED(item);
		136		m_pixmap = preview;
		137		emit pixmapChanged();
		138
		139		if (!m_iconName.isEmpty()) {
		140		m_iconName.clear();
		141		emit iconNameChanged();
		142		}
		143		});
		144
		145		connect(job, &KIO::PreviewJob::failed, this, [this](const KFileItem &item) {
		146		m_pixmap = QPixmap();
		147		emit pixmapChanged();
		148
		149		const QString &iconName = item.determineMimeType().iconName();
		150		if (m_iconName != iconName) {
		151		m_iconName = iconName;
		152		emit iconNameChanged();
		153		}
		154		});
		155
		156		connect(job, &KJob::result, this, [this] {
		157		m_busy = false;
		158		emit busyChanged();
		159		});
		160
		161		m_busy = true;
		162		emit busyChanged();
		163
		164		job->start();
		165		}