src/filterbar/filterbar.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2006-2010 Peter Penz <peter.penz19@gmail.com>
   3  * SPDX-FileCopyrightText: 2006 Gregor Kališnik <gregor@podnapisi.net>
   4  * SPDX-FileCopyrightText: 2012 Stuart Citrin <ctrn3e8@gmail.com>
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #include "filterbar.h"
  10
  11 #include <KLocalizedString>
  12
  13 #include <QApplication>
  14 #include <QHBoxLayout>
  15 #include <QKeyEvent>
  16 #include <QLineEdit>
  17 #include <QToolButton>
  18
  19 FilterBar::FilterBar(QWidget *parent)
  20     : QWidget(parent)
  21 {
  22     // Create button to lock text when changing folders
  23     m_lockButton = new QToolButton(this);
  24     m_lockButton->setAutoRaise(true);
  25     m_lockButton->setCheckable(true);
  26     m_lockButton->setIcon(QIcon::fromTheme(QStringLiteral("object-unlocked")));
  27     m_lockButton->setToolTip(i18nc("@info:tooltip", "Keep Filter When Changing Folders"));
  28     connect(m_lockButton, &QToolButton::toggled, this, &FilterBar::slotToggleLockButton);
  29
  30     // Create filter editor
  31     m_filterInput = new QLineEdit(this);
  32     m_filterInput->setLayoutDirection(Qt::LeftToRight);
  33     m_filterInput->setClearButtonEnabled(true);
  34     m_filterInput->setPlaceholderText(i18n("Filter…"));
  35     connect(m_filterInput, &QLineEdit::textChanged, this, &FilterBar::filterChanged);
  36     setFocusProxy(m_filterInput);
  37
  38     // Create close button
  39     QToolButton *closeButton = new QToolButton(this);
  40     closeButton->setAutoRaise(true);
  41     closeButton->setIcon(QIcon::fromTheme(QStringLiteral("dialog-close")));
  42     closeButton->setToolTip(i18nc("@info:tooltip", "Hide Filter Bar"));
  43     connect(closeButton, &QToolButton::clicked, this, &FilterBar::closeRequest);
  44
  45     // Apply layout
  46     QHBoxLayout *hLayout = new QHBoxLayout(this);
  47     hLayout->setContentsMargins(0, 0, 0, 0);
  48     hLayout->addWidget(m_lockButton);
  49     hLayout->addWidget(m_filterInput);
  50     hLayout->addWidget(closeButton);
  51
  52     setTabOrder(m_lockButton, closeButton);
  53     setTabOrder(closeButton, m_filterInput);
  54 }
  55
  56 FilterBar::~FilterBar()
  57 {
  58 }
  59
  60 void FilterBar::closeFilterBar()
  61 {
  62     hide();
  63     clear();
  64     if (m_lockButton) {
  65         m_lockButton->setChecked(false);
  66     }
  67 }
  68
  69 void FilterBar::selectAll()
  70 {
  71     m_filterInput->selectAll();
  72 }
  73
  74 void FilterBar::clear()
  75 {
  76     m_filterInput->clear();
  77 }
  78
  79 void FilterBar::clearIfUnlocked()
  80 {
  81     if (!m_lockButton || !(m_lockButton->isChecked())) {
  82         clear();
  83     }
  84 }
  85
  86 void FilterBar::slotToggleLockButton(bool checked)
  87 {
  88     if (checked) {
  89         m_lockButton->setIcon(QIcon::fromTheme(QStringLiteral("object-locked")));
  90     } else {
  91         m_lockButton->setIcon(QIcon::fromTheme(QStringLiteral("object-unlocked")));
  92         clear();
  93     }
  94 }
  95
  96 void FilterBar::showEvent(QShowEvent *event)
  97 {
  98     if (!event->spontaneous()) {
  99         m_filterInput->setFocus();
 100     }
 101 }
 102
 103 void FilterBar::keyPressEvent(QKeyEvent *event)
 104 {
 105     switch (event->key()) {
 106     case Qt::Key_Escape:
 107         if (m_filterInput->text().isEmpty()) {
 108             Q_EMIT closeRequest();
 109         } else {
 110             m_filterInput->clear();
 111         }
 112         return;
 113
 114     case Qt::Key_Enter:
 115     case Qt::Key_Return:
 116         Q_EMIT focusViewRequest();
 117         return;
 118
 119     case Qt::Key_Down:
 120     case Qt::Key_PageDown:
 121     case Qt::Key_Up:
 122     case Qt::Key_PageUp: {
 123         Q_EMIT focusViewRequest();
 124         QWidget *focusWidget = QApplication::focusWidget();
 125         if (focusWidget && focusWidget != this) {
 126             QApplication::sendEvent(focusWidget, event);
 127         }
 128         return;
 129     }
 130
 131     default:
 132         break;
 133     }
 134
 135     QWidget::keyPressEvent(event);
 136 }