rssguard/src/librssguard/miscellaneous/skinfactory.cpp

319 lines
12 KiB
C++

// For license of this file, see <project-root-folder>/LICENSE.md.
#include "miscellaneous/skinfactory.h"
#include "exceptions/ioexception.h"
#include "miscellaneous/application.h"
#include <QDir>
#include <QDomDocument>
#include <QDomElement>
#include <QMetaEnum>
#include <QMetaObject>
#include <QStyleFactory>
#include <QToolTip>
SkinFactory::SkinFactory(QObject* parent) : QObject(parent) {}
void SkinFactory::loadCurrentSkin() {
QList<QString> skin_names_to_try;
skin_names_to_try.append(selectedSkinName());
skin_names_to_try.append(QSL(APP_SKIN_DEFAULT));
bool skin_parsed;
Skin skin_data;
QString skin_name;
while (!skin_names_to_try.isEmpty()) {
skin_name = skin_names_to_try.takeFirst();
skin_data = skinInfo(skin_name, &skin_parsed);
if (skin_parsed) {
loadSkinFromData(skin_data);
// Set this 'Skin' object as active one.
m_currentSkin = skin_data;
qDebugNN << LOGSEC_GUI << "Skin" << QUOTE_W_SPACE(skin_name) << "loaded.";
return;
}
else {
qWarningNN << LOGSEC_GUI << "Failed to load skin" << QUOTE_W_SPACE_DOT(skin_name);
}
}
qCriticalNN << LOGSEC_GUI << "Failed to load selected or default skin. Quitting!";
}
bool SkinFactory::isStyleGoodForDarkVariant(const QString& style_name) const {
return QRegularExpression("^(fusion)|(qt5ct-style)$").match(style_name.toLower()).hasMatch();
}
void SkinFactory::loadSkinFromData(const Skin& skin) {
QString style_name = qApp->settings()->value(GROUP(GUI), SETTING(GUI::Style)).toString();
qApp->setStyle(style_name);
if (isStyleGoodForDarkVariant(style_name) &&
qApp->settings()->value(GROUP(GUI), SETTING(GUI::ForceDarkFusion)).toBool()) {
qDebugNN << LOGSEC_GUI << "Activating dark palette for Fusion style.";
QPalette fusion_palette = qApp->palette();
QColor clr_bg(QSL("#2D2F32"));
QColor clr_altbg(QSL("#323437"));
QColor clr_selbg(QSL("#8291AD"));
QColor clr_fg(QSL("#D8D8D8"));
QColor clr_brdr(QSL("#585C65"));
QColor clr_tooltip_brdr(QSL("#707580"));
QColor clr_link(QSL("#a1acc1"));
QColor clr_dis_fg(QSL("#727272"));
//
// Normal state.
//
// Backgrounds & bases.
fusion_palette.setColor(QPalette::ColorRole::Window, clr_bg);
fusion_palette.setColor(QPalette::ColorRole::Base, clr_bg);
fusion_palette.setColor(QPalette::ColorRole::Dark, clr_bg);
fusion_palette.setColor(QPalette::ColorRole::AlternateBase, clr_altbg);
fusion_palette.setColor(QPalette::ColorRole::Button, clr_altbg);
fusion_palette.setColor(QPalette::ColorRole::Highlight, clr_selbg);
// Texts.
fusion_palette.setColor(QPalette::ColorRole::WindowText, clr_fg);
fusion_palette.setColor(QPalette::ColorRole::ButtonText, clr_fg);
fusion_palette.setColor(QPalette::ColorRole::BrightText, clr_fg);
fusion_palette.setColor(QPalette::ColorRole::Text, clr_fg);
fusion_palette.setColor(QPalette::ColorRole::PlaceholderText, clr_fg);
fusion_palette.setColor(QPalette::ColorRole::Link, clr_link);
fusion_palette.setColor(QPalette::ColorRole::LinkVisited, clr_link);
fusion_palette.setColor(QPalette::ColorRole::HighlightedText, clr_fg);
//
// Inactive state.
//
// Backgrounds & bases.
// Texts.
//
// Disabled state.
//
// Backgrounds & bases.
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Window, clr_altbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Base, clr_altbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Dark, clr_altbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::AlternateBase, clr_altbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Button, Qt::GlobalColor::red);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Highlight, clr_selbg);
// Texts.
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::WindowText, clr_dis_fg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::ButtonText, clr_dis_fg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::BrightText, clr_fg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Text, clr_dis_fg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::PlaceholderText, clr_fg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Link, clr_link);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::LinkVisited, clr_link);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::HighlightedText, clr_fg);
//
// Tooltips.
//
fusion_palette.setColor(QPalette::ColorGroup::All, QPalette::ColorRole::ToolTipBase, clr_bg);
fusion_palette.setColor(QPalette::ColorGroup::All, QPalette::ColorRole::ToolTipText, clr_fg);
QToolTip::setPalette(fusion_palette);
qApp->setPalette(fusion_palette);
}
if (!skin.m_rawData.isEmpty()) {
if (qApp->styleSheet().simplified().isEmpty()) {
qApp->setStyleSheet(skin.m_rawData);
}
else {
qCriticalNN << LOGSEC_GUI
<< "Skipped setting of application style and skin because there is already some style set.";
}
}
}
void SkinFactory::setCurrentSkinName(const QString& skin_name) {
qApp->settings()->setValue(GROUP(GUI), GUI::Skin, skin_name);
}
QString SkinFactory::customSkinBaseFolder() const {
return qApp->userDataFolder() + QDir::separator() + APP_SKIN_USER_FOLDER;
}
QString SkinFactory::selectedSkinName() const {
return qApp->settings()->value(GROUP(GUI), SETTING(GUI::Skin)).toString();
}
QString SkinFactory::adBlockedPage(const QString& url, const QString& filter) {
const QString& adblocked = currentSkin().m_adblocked.arg(tr("This page was blocked by AdBlock"),
tr(R"(Blocked URL: "%1"<br/>Used filter: "%2")").arg(url,
filter));
return currentSkin().m_layoutMarkupWrapper.arg(tr("This page was blocked by AdBlock"), adblocked);
}
Skin SkinFactory::skinInfo(const QString& skin_name, bool* ok) const {
Skin skin;
QStringList base_skin_folders;
base_skin_folders.append(APP_SKIN_PATH);
base_skin_folders.append(customSkinBaseFolder());
while (!base_skin_folders.isEmpty()) {
const QString skin_parent = base_skin_folders.takeAt(0).replace(QDir::separator(), QL1C('/')) + QL1C('/');
const QString skin_folder_no_sep = skin_parent + skin_name;
const QString skin_folder = skin_folder_no_sep + QDir::separator();
const QString metadata_file = skin_folder + APP_SKIN_METADATA_FILE;
if (QFile::exists(metadata_file)) {
QFile skin_file(metadata_file);
QDomDocument document;
if (!skin_file.open(QIODevice::OpenModeFlag::Text | QIODevice::OpenModeFlag::ReadOnly) ||
!document.setContent(&skin_file, true)) {
if (ok != nullptr) {
*ok = false;
}
return skin;
}
const QDomNode skin_node = document.namedItem(QSL("skin"));
QString base_skin_folder = skin_node.toElement().attribute(QSL("base"));
if (!base_skin_folder.isEmpty()) {
base_skin_folder = skin_parent + base_skin_folder;
}
// Obtain visible skin name.
skin.m_visibleName = skin_name;
// Obtain author.
skin.m_author = skin_node.namedItem(QSL("author")).namedItem(QSL("name")).toElement().text();
// Obtain version.
skin.m_version = skin_node.attributes().namedItem(QSL("version")).toAttr().value();
// Obtain other information.
skin.m_baseName = skin_name;
// Obtain color palette.
QHash<SkinEnums::PaletteColors, QColor> palette;
QDomNodeList colors_of_palette = skin_node.namedItem(QSL("palette")).toElement().elementsByTagName(QSL("color"));
const QMetaObject& mo = SkinEnums::staticMetaObject;
QMetaEnum enumer = mo.enumerator(mo.indexOfEnumerator(QSL("PaletteColors").toLocal8Bit().constData()));
for (int i = 0; i < colors_of_palette.size(); i++) {
QDomElement elem_clr = colors_of_palette.item(i).toElement();
QString en_val = elem_clr.attribute(QSL("key"));
SkinEnums::PaletteColors key = SkinEnums::PaletteColors(enumer.keyToValue(en_val.toLatin1()));
QColor value = elem_clr.text();
if (value.isValid()) {
palette.insert(key, value);
}
}
skin.m_colorPalette = palette;
// Free resources.
skin_file.close();
skin_file.deleteLater();
// Here we use "/" instead of QDir::separator() because CSS2.1 url field
// accepts '/' as path elements separator.
//
// USER_DATA_PLACEHOLDER is placeholder for the actual path to skin folder. This is needed for using
// images within the QSS file.
// So if one uses "%data%/images/border.png" in QSS then it is
// replaced by fully absolute path and target file can
// be safely loaded.
//
// %style% placeholder is used in main wrapper HTML file to be replaced with custom skin-wide CSS.
skin.m_layoutMarkupWrapper = loadSkinFile(skin_folder_no_sep, QSL("html_wrapper.html"), base_skin_folder);
try {
auto custom_css = loadSkinFile(skin_folder_no_sep, QSL("html_style.css"), base_skin_folder);
skin.m_layoutMarkupWrapper = skin.m_layoutMarkupWrapper.replace(QSL(SKIN_STYLE_PLACEHOLDER), custom_css);
}
catch (...) {
qWarningNN << "Skin"
<< QUOTE_W_SPACE(skin_name)
<< "does not support separated custom CSS.";
}
skin.m_enclosureImageMarkup = loadSkinFile(skin_folder_no_sep, QSL("html_enclosure_image.html"), base_skin_folder);
skin.m_layoutMarkup = loadSkinFile(skin_folder_no_sep, QSL("html_single_message.html"), base_skin_folder);
skin.m_enclosureMarkup = loadSkinFile(skin_folder_no_sep, QSL("html_enclosure_every.html"), base_skin_folder);
skin.m_rawData = loadSkinFile(skin_folder_no_sep, QSL("qt_style.qss"), base_skin_folder);
skin.m_adblocked = loadSkinFile(skin_folder_no_sep, QSL("html_adblocked.html"), base_skin_folder);
if (ok != nullptr) {
*ok = !skin.m_author.isEmpty() && !skin.m_version.isEmpty() &&
!skin.m_baseName.isEmpty() &&
!skin.m_layoutMarkup.isEmpty();
}
return skin;
}
}
if (ok != nullptr) {
*ok = false;
}
return skin;
}
QString SkinFactory::loadSkinFile(const QString& skin_folder, const QString& file_name, const QString& base_folder) const {
QString local_file = QDir::toNativeSeparators(skin_folder + QDir::separator() + file_name);
QString base_file = QDir::toNativeSeparators(base_folder + QDir::separator() + file_name);
QString data;
if (QFile::exists(local_file)) {
qDebugNN << LOGSEC_GUI << "Local file" << QUOTE_W_SPACE(local_file) << "exists, using it for the skin.";
data = QString::fromUtf8(IOFactory::readFile(local_file));
}
else {
qDebugNN << LOGSEC_GUI << "Trying to load base file" << QUOTE_W_SPACE(base_file) << "for the skin.";
data = QString::fromUtf8(IOFactory::readFile(base_file));
}
return data.replace(QSL(USER_DATA_PLACEHOLDER), skin_folder);
}
QList<Skin> SkinFactory::installedSkins() const {
QList<Skin> skins;
bool skin_load_ok;
QStringList skin_directories = QDir(APP_SKIN_PATH).entryList(QDir::Filter::Dirs |
QDir::Filter::NoDotAndDotDot |
QDir::Filter::Readable);
skin_directories.append(QDir(customSkinBaseFolder()).entryList(QDir::Filter::Dirs |
QDir::Filter::NoDotAndDotDot |
QDir::Filter::Readable));
for (const QString& base_directory : skin_directories) {
const Skin skin_info = skinInfo(base_directory, &skin_load_ok);
if (skin_load_ok) {
skins.append(skin_info);
}
}
return skins;
}
uint qHash(const SkinEnums::PaletteColors& key) {
return uint(key);
}