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#include <QFont>
#include <QShortcut>
#include <QStyle>
#include "wsearchlineedit.h"
#include "wskincolor.h"
#include "wwidget.h"
#include "skin/skincontext.h"
#include "util/assert.h"
#include "util/logger.h"
#define ENABLE_TRACE_LOG false
namespace {
const mixxx::Logger kLogger("WSearchLineEdit");
const QColor kDefaultBackgroundColor = QColor(0, 0, 0);
const QString kEmptySearch = QStringLiteral("");
const QString kDisabledText = QStringLiteral("- - -");
const QString kClearButtonName = QStringLiteral("SearchClearButton");
inline QString clearButtonStyleSheet(int pxPaddingRight) {
DEBUG_ASSERT(pxPaddingRight >= 0);
return QString(
QStringLiteral("QLineEdit { padding-right: %1px; }"))
.arg(pxPaddingRight);
}
int verifyDebouncingTimeoutMillis(int debouncingTimeoutMillis) {
VERIFY_OR_DEBUG_ASSERT(debouncingTimeoutMillis >= WSearchLineEdit::kMinDebouncingTimeoutMillis) {
debouncingTimeoutMillis = WSearchLineEdit::kMinDebouncingTimeoutMillis;
}
VERIFY_OR_DEBUG_ASSERT(debouncingTimeoutMillis <= WSearchLineEdit::kMaxDebouncingTimeoutMillis) {
debouncingTimeoutMillis = WSearchLineEdit::kMaxDebouncingTimeoutMillis;
}
return debouncingTimeoutMillis;
}
} // namespace
//static
constexpr int WSearchLineEdit::kMinDebouncingTimeoutMillis;
//static
constexpr int WSearchLineEdit::kDefaultDebouncingTimeoutMillis;
//static
constexpr int WSearchLineEdit::kMaxDebouncingTimeoutMillis;
//static
int WSearchLineEdit::s_debouncingTimeoutMillis = kDefaultDebouncingTimeoutMillis;
//static
void WSearchLineEdit::setDebouncingTimeoutMillis(int debouncingTimeoutMillis) {
s_debouncingTimeoutMillis = verifyDebouncingTimeoutMillis(debouncingTimeoutMillis);
}
WSearchLineEdit::WSearchLineEdit(QWidget* pParent)
: QLineEdit(pParent),
WBaseWidget(this),
m_clearButton(make_parented<QToolButton>(this)) {
DEBUG_ASSERT(kEmptySearch.isEmpty());
DEBUG_ASSERT(!kEmptySearch.isNull());
setAcceptDrops(false);
setPlaceholderText(tr("Search...", "noun"));
m_clearButton->setCursor(Qt::ArrowCursor);
m_clearButton->setObjectName(kClearButtonName);
// Assume the qss border is at least 1px wide
m_frameWidth = 1;
m_clearButton->hide();
connect(m_clearButton,
&QAbstractButton::clicked,
this,
&WSearchLineEdit::slotClearSearch);
// This prevents the searchbox from being focused by Tab key (real or emulated)
// so it is skipped when using the library controls 'MoveFocus[...]'
// The Clear button can still be focused by Tab.
setFocusPolicy(Qt::ClickFocus);
QShortcut* setFocusShortcut = new QShortcut(QKeySequence(tr("Ctrl+F", "Search|Focus")), this);
connect(setFocusShortcut,
&QShortcut::activated,
this,
&WSearchLineEdit::slotSetShortcutFocus);
// Set up a timer to search after a few hundred milliseconds timeout. This
// stops us from thrashing the database if you type really fast.
m_debouncingTimer.setSingleShot(true);
connect(&m_debouncingTimer,
&QTimer::timeout,
this,
&WSearchLineEdit::slotTriggerSearch);
connect(this,
&QLineEdit::textChanged,
this,
&WSearchLineEdit::slotTextChanged);
// When you hit enter, it will trigger or clear the search.
connect(this,
&QLineEdit::returnPressed,
this,
[this] {
if (!slotClearSearchIfClearButtonHasFocus()) {
slotTriggerSearch();
}
});
QSize clearButtonSize = m_clearButton->sizeHint();
// Ensures the text does not obscure the clear image.
setStyleSheet(clearButtonStyleSheet(clearButtonSize.width() + m_frameWidth + 1));
refreshState();
}
void WSearchLineEdit::setup(const QDomNode& node, const SkinContext& context) {
auto backgroundColor = kDefaultBackgroundColor;
QString bgColorName;
if (context.hasNodeSelectString(node, "BgColor", &bgColorName)) {
auto namedColor = QColor(bgColorName);
if (namedColor.isValid()) {
backgroundColor = namedColor;
setAutoFillBackground(true);
} else {
kLogger.warning()
<< "Failed to parse background color"
<< bgColorName;
}
}
backgroundColor = WSkinColor::getCorrectColor(backgroundColor);
kLogger.debug()
<< "Background color:"
<< backgroundColor;
const auto defaultForegroundColor =
QColor::fromRgb(
255 - backgroundColor.red(),
255 - backgroundColor.green(),
255 - backgroundColor.blue());
auto foregroundColor = defaultForegroundColor;
QString fgColorName;
if (context.hasNodeSelectString(node, "FgColor", &fgColorName)) {
auto namedColor = QColor(fgColorName);
if (namedColor.isValid()) {
foregroundColor = namedColor;
} else {
kLogger.warning()
<< "Failed to parse foreground color"
<< fgColorName;
}
}
foregroundColor = WSkinColor::getCorrectColor(foregroundColor);
VERIFY_OR_DEBUG_ASSERT(foregroundColor != backgroundColor) {
kLogger.warning()
<< "Invisible foreground color - using default color as fallback";
foregroundColor = defaultForegroundColor;
}
kLogger.debug()
<< "Foreground color:"
<< foregroundColor;
QPalette pal = palette();
DEBUG_ASSERT(backgroundColor != foregroundColor);
pal.setBrush(backgroundRole(), backgroundColor);
pal.setBrush(foregroundRole(), foregroundColor);
#if QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
auto placeholderColor = foregroundColor;
placeholderColor.setAlpha(placeholderColor.alpha() * 3 / 4); // 75% opaque
kLogger.debug()
<< "Placeholder color:"
<< placeholderColor;
pal.setBrush(QPalette::PlaceholderText, placeholderColor);
#endif
setPalette(pal);
m_clearButton->setToolTip(tr("Clear input") + "\n" +
tr("Clear the search bar input field") + "\n\n" +
tr("Shortcut") + ": \n" +
tr("Ctrl+Backspace"));
setToolTip(tr("Search", "noun") + "\n" +
tr("Enter a string to search for") + "\n" +
tr("Use operators like bpm:115-128, artist:BooFar, -year:1990") + "\n" +
tr("For more information see User Manual > Mixxx Library") + "\n\n" +
tr("Shortcut") + ": \n" +
tr("Ctrl+F") + " " + tr("Focus", "Give search bar input focus") + "\n" +
tr("Ctrl+Backspace") + " " + tr("Clear input", "Clear the search bar input field") + "\n" +
tr("Esc") + " " + tr("Exit search", "Exit search bar and leave focus"));
}
void WSearchLineEdit::resizeEvent(QResizeEvent* e) {
QLineEdit::resizeEvent(e);
m_innerHeight = this->height() - 2 * m_frameWidth;
// Test if this is a vertical resize due to changed library font.
// Assuming current button height is innerHeight from last resize,
// we will resize the Clear button icon only if height has changed.
if (m_clearButton->size().height() != m_innerHeight) {
QSize newSize = QSize(m_innerHeight, m_innerHeight);
m_clearButton->resize(newSize);
m_clearButton->setIconSize(newSize);
// Note(ronso0): For some reason this ensures the search text
// is being displayed after skin change/reload.
refreshState();
}
int top = rect().top() + m_frameWidth;
if (layoutDirection() == Qt::LeftToRight) {
m_clearButton->move(rect().right() - m_innerHeight - m_frameWidth, top);
} else {
m_clearButton->move(m_frameWidth, top);
}
}
QString WSearchLineEdit::getSearchText() const {
if (isEnabled()) {
DEBUG_ASSERT(!text().isNull());
return text();
} else {
return QString();
}
}
void WSearchLineEdit::focusInEvent(QFocusEvent* event) {
#if ENABLE_TRACE_LOG
kLogger.trace()
<< "focusInEvent";
#endif //
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