ladybird/Ladybird/LocationEdit.cpp
networkException 1a958633fa Ladybird: Rely on transparent text color for location highlighting
This patch replaces the usage of QPalette::PlaceholderText with
QPalette::Text with opacity reduced to roughly 50%. This fixes the non
highlighted spans having an extremely low contrast compared to the
background in dark mode.
2023-03-14 14:56:37 +01:00

86 lines
2.5 KiB
C++

/*
* Copyright (c) 2023, Cameron Youell <cameronyouell@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "LocationEdit.h"
#include "Utilities.h"
#include <AK/URL.h>
#include <QCoreApplication>
#include <QPalette>
#include <QTextLayout>
LocationEdit::LocationEdit(QWidget* parent)
: QLineEdit(parent)
{
connect(this, &QLineEdit::returnPressed, this, [&] {
clearFocus();
});
connect(this, &QLineEdit::textChanged, this, [&] {
highlight_location();
});
}
void LocationEdit::focusInEvent(QFocusEvent* event)
{
QLineEdit::focusInEvent(event);
highlight_location();
}
void LocationEdit::focusOutEvent(QFocusEvent* event)
{
QLineEdit::focusOutEvent(event);
highlight_location();
}
void LocationEdit::highlight_location()
{
auto url = AK::URL::create_with_url_or_path(ak_deprecated_string_from_qstring(text()));
auto darkened_text_color = QPalette().color(QPalette::Text);
darkened_text_color.setAlpha(127);
QList<QInputMethodEvent::Attribute> attributes;
if (url.is_valid() && !hasFocus()) {
if (url.scheme() == "http" || url.scheme() == "https" || url.scheme() == "gemini") {
int host_start = (url.scheme().length() + 3) - cursorPosition();
auto host_length = url.host().length();
// FIXME: Maybe add a generator to use https://publicsuffix.org/list/public_suffix_list.dat
// for now just highlight the whole host
QTextCharFormat defaultFormat;
defaultFormat.setForeground(darkened_text_color);
attributes.append({
QInputMethodEvent::TextFormat,
-cursorPosition(),
static_cast<int>(text().length()),
defaultFormat,
});
QTextCharFormat hostFormat;
hostFormat.setForeground(QPalette().color(QPalette::Text));
attributes.append({
QInputMethodEvent::TextFormat,
host_start,
static_cast<int>(host_length),
hostFormat,
});
} else if (url.scheme() == "file") {
QTextCharFormat schemeFormat;
schemeFormat.setForeground(darkened_text_color);
attributes.append({
QInputMethodEvent::TextFormat,
-cursorPosition(),
static_cast<int>(url.scheme().length() + 3),
schemeFormat,
});
}
}
QInputMethodEvent event(QString(), attributes);
QCoreApplication::sendEvent(this, &event);
}