rssguard/src/librssguard/miscellaneous/skinfactory.cpp

406 lines
15 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 <QProcessEnvironment>
#include <QStyleFactory>
#include <QToolTip>
SkinFactory::SkinFactory(QObject* parent) : QObject(parent), m_styleIsFrozen(false) {}
void SkinFactory::loadCurrentSkin() {
QList<QString> skin_names_to_try = { selectedSkinName(), 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 {
static QRegularExpression re = QRegularExpression("^(fusion)|(qt[56]ct-style)$");
return re.match(style_name.toLower()).hasMatch();
}
void SkinFactory::loadSkinFromData(const Skin& skin) {
QString style_name = qApp->settings()->value(GROUP(GUI), SETTING(GUI::Style)).toString();
auto env = QProcessEnvironment::systemEnvironment();
QString over_style = env.value(QSL("QT_STYLE_OVERRIDE"));
if (over_style.isEmpty()) {
qApp->setStyle(style_name);
m_styleIsFrozen = false;
qDebugNN << LOGSEC_GUI << "Setting style:" << QUOTE_W_SPACE_DOT(style_name);
}
else {
m_styleIsFrozen = true;
qWarningNN << LOGSEC_GUI << "Respecting forced style:" << QUOTE_W_SPACE_DOT(over_style);
}
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_maibg(QSL("#2D2F32"));
QColor clr_basbg(QSL("#373A3D"));
QColor clr_altbg(QSL("#323437"));
QColor clr_selbg(QSL("#8291AD"));
QColor clr_selfg(QSL("#FFFFFF"));
QColor clr_btnfg(QSL("#E7E7E7"));
QColor clr_dibfg(QSL("#A7A7A7"));
QColor clr_winfg(QSL("#D8D8D8"));
QColor clr_diwfg(QSL("#999999"));
QColor clr_brdbg(QSL("#202224")); // Use colour picker on dark brdr under list header for this one
QColor clr_wlink(QSL("#a1acc1"));
//
// Normal state.
//
// Backgrounds & bases.
fusion_palette.setColor(QPalette::ColorRole::Window, clr_maibg);
fusion_palette.setColor(QPalette::ColorRole::Base, clr_basbg);
fusion_palette.setColor(QPalette::ColorRole::Dark, clr_brdbg);
fusion_palette.setColor(QPalette::ColorRole::AlternateBase, clr_altbg);
fusion_palette.setColor(QPalette::ColorRole::Button, clr_altbg);
fusion_palette.setColor(QPalette::ColorRole::Light, clr_altbg);
fusion_palette.setColor(QPalette::ColorRole::Highlight, clr_selbg);
// Texts.
fusion_palette.setColor(QPalette::ColorRole::ButtonText, clr_btnfg);
fusion_palette.setColor(QPalette::ColorRole::WindowText, clr_winfg);
fusion_palette.setColor(QPalette::ColorRole::BrightText, clr_basbg);
fusion_palette.setColor(QPalette::ColorRole::Text, clr_winfg);
fusion_palette.setColor(QPalette::ColorRole::PlaceholderText, clr_dibfg);
fusion_palette.setColor(QPalette::ColorRole::Link, clr_wlink);
fusion_palette.setColor(QPalette::ColorRole::LinkVisited, clr_wlink);
fusion_palette.setColor(QPalette::ColorRole::HighlightedText, clr_selfg);
//
// Inactive state.
//
// Backgrounds & bases.
// Texts.
//
// Disabled state.
//
// Backgrounds & bases.
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Window, clr_maibg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Base, clr_basbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Dark, clr_brdbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::AlternateBase, clr_altbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Button, clr_altbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Light, clr_altbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Highlight, clr_selbg);
// Texts.
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::ButtonText, clr_dibfg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::WindowText, clr_diwfg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::BrightText, clr_basbg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Text, clr_diwfg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::PlaceholderText, clr_dibfg);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::Link, clr_wlink);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::LinkVisited, clr_wlink);
fusion_palette.setColor(QPalette::ColorGroup::Disabled, QPalette::ColorRole::HighlightedText, clr_selfg);
//
// Tooltips.
//
fusion_palette.setColor(QPalette::ColorGroup::All, QPalette::ColorRole::ToolTipBase, clr_maibg);
fusion_palette.setColor(QPalette::ColorGroup::All, QPalette::ColorRole::ToolTipText, clr_winfg);
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;
const QStringList skins_root_folders = {
APP_SKIN_PATH,
customSkinBaseFolder()
};
for (const QString& skins_root_folder : skins_root_folders) {
const QString skin_parent = QString(skins_root_folder).replace(QDir::separator(), QL1C('/')) + QL1C('/');
const QString skin_folder_no_sep = skin_parent + skin_name;
const QString skin_folder_with_sep = skin_folder_no_sep + QDir::separator();
const QString metadata_file = skin_folder_with_sep + 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"));
const QString base_skin_name = skin_node.toElement().attribute(QSL("base"));;
QString real_base_skin_folder;
if (!base_skin_name.isEmpty()) {
// We now find folder of "base" skin.
for (const QString& parent_for_base : skins_root_folders) {
QString full_base = parent_for_base + QDir::separator() + base_skin_name;
if (QDir().exists(full_base)) {
real_base_skin_folder = full_base;
real_base_skin_folder = real_base_skin_folder.replace(QDir::separator(), QL1C('/'));
qDebugNN << LOGSEC_GUI << "Found path of base skin:"
<< QUOTE_W_SPACE_DOT(QDir::toNativeSeparators(real_base_skin_folder));
break;
}
}
if (real_base_skin_folder.isEmpty()) {
// Base skin not found.
if (ok != nullptr) {
*ok = false;
}
qCriticalNN << LOGSEC_GUI << "Base skin" << QUOTE_W_SPACE(base_skin_name) << "not found.";
return skin;
}
}
// 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"), real_base_skin_folder);
try {
auto custom_css = loadSkinFile(skin_folder_no_sep, QSL("html_style.css"), real_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"), real_base_skin_folder);
skin.m_layoutMarkup = loadSkinFile(skin_folder_no_sep, QSL("html_single_message.html"), real_base_skin_folder);
skin.m_enclosureMarkup = loadSkinFile(skin_folder_no_sep, QSL("html_enclosure_every.html"), real_base_skin_folder);
skin.m_rawData = loadSkinFile(skin_folder_no_sep, QSL("qt_style.qss"), real_base_skin_folder);
skin.m_adblocked = loadSkinFile(skin_folder_no_sep, QSL("html_adblocked.html"), real_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));
return data.replace(QSL(USER_DATA_PLACEHOLDER), skin_folder);
}
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), base_folder);
}
}
bool SkinFactory::styleIsFrozen() const {
return m_styleIsFrozen;
}
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);
}
QVariant Skin::colorForModel(SkinEnums::PaletteColors type, bool ignore_custom_colors) const {
if (!ignore_custom_colors) {
bool enabled = qApp->settings()->value(GROUP(CustomSkinColors),
SETTING(CustomSkinColors::Enabled)).toBool();
if (enabled) {
const QMetaObject& mo = SkinEnums::staticMetaObject;
QMetaEnum enumer = mo.enumerator(mo.indexOfEnumerator(QSL("PaletteColors").toLocal8Bit().constData()));
QColor custom_clr = qApp->settings()->value(GROUP(CustomSkinColors), enumer.valueToKey(int(type))).toString();
if (custom_clr.isValid()) {
return custom_clr;
}
}
}
return m_colorPalette.contains(type)
? m_colorPalette[type]
: QVariant();
}
QString SkinEnums::palleteColorText(PaletteColors col) {
switch (col) {
case SkinEnums::PaletteColors::FgInteresting:
return QObject::tr("interesting stuff");
case SkinEnums::PaletteColors::FgSelectedInteresting:
return QObject::tr("interesting stuff (highlighted)");;
case SkinEnums::PaletteColors::FgError:
return QObject::tr("errored items");
case SkinEnums::PaletteColors::FgSelectedError:
return QObject::tr("errored items (highlighted)");
case SkinEnums::PaletteColors::Allright:
return QObject::tr("OK-ish color");
default:
return {};
}
}