FindBar. Rewamped and restored

4 files changed, 420 insertions, 2 deletions

diff --git a/src/webwindow/findbar.cpp b/src/webwindow/findbar.cpp
new file mode 100644
index 00000000..8e6a98a6
--- /dev/null
+++ b/src/webwindow/findbar.cpp
@@ -0,0 +1,318 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2008-2012 by Andrea Diamantini <adjam7 at gmail dot com>
+* Copyright (C) 2009-2011 by Lionel Chauvin <megabigbug@yahoo.fr>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+// Self Includes
+#include "findbar.h"
+#include "findbar.moc"
+
+// Local Includes
+#include "webtab.h"
+#include "webpage.h"
+#include "webwindow.h"
+
+// KDE Includes
+#include <KApplication>
+#include <KIcon>
+#include <KLineEdit>
+#include <KLocalizedString>
+#include <KPushButton>
+#include <KColorScheme>
+
+// Qt Includes
+#include <QTimer>
+
+#include <QCheckBox>
+#include <QHBoxLayout>
+#include <QKeyEvent>
+#include <QLabel>
+#include <QToolButton>
+#include <QWebFrame>
+
+
+FindBar::FindBar(QWidget *parent)
+    : QWidget(parent)
+    , m_lineEdit(new KLineEdit(this))
+    , m_hideTimer(new QTimer(this))
+    , m_matchCase(new QCheckBox(i18n("&Match case"), this))
+    , m_highlightAll(new QCheckBox(i18n("&Highlight all"), this))
+{
+    QHBoxLayout *layout = new QHBoxLayout;
+
+    // cosmetic
+    layout->setContentsMargins(2, 0, 2, 0);
+
+    // hide button
+    QToolButton *hideButton = new QToolButton(this);
+    hideButton->setAutoRaise(true);
+    hideButton->setIcon(KIcon("dialog-close"));
+    connect(hideButton, SIGNAL(clicked()), this, SLOT(hide()));
+    layout->addWidget(hideButton);
+    layout->setAlignment(hideButton, Qt::AlignLeft | Qt::AlignTop);
+
+    // hide timer
+    connect(m_hideTimer, SIGNAL(timeout()), this, SLOT(hide()));
+    m_hideTimer->setSingleShot(true);
+
+    // label
+    QLabel *label = new QLabel(i18n("Find:"));
+    layout->addWidget(label);
+
+    // Find Bar signal
+    connect(this, SIGNAL(searchString(QString)), this, SLOT(find(QString)));
+
+    // lineEdit, focusProxy
+    setFocusProxy(m_lineEdit);
+    m_lineEdit->setMaximumWidth(250);
+    connect(m_lineEdit, SIGNAL(textChanged(QString)), this, SLOT(find(QString)));
+    layout->addWidget(m_lineEdit);
+
+    // buttons
+    KPushButton *findNext = new KPushButton(KIcon("go-down"), i18n("&Next"), this);
+    KPushButton *findPrev = new KPushButton(KIcon("go-up"), i18n("&Previous"), this);
+    connect(findNext, SIGNAL(clicked()), this, SLOT(findNext()));
+    connect(findPrev, SIGNAL(clicked()), this, SLOT(findPrevious()));
+    layout->addWidget(findNext);
+    layout->addWidget(findPrev);
+
+    // Case sensitivity. Deliberately set so this is off by default.
+    m_matchCase->setCheckState(Qt::Unchecked);
+    m_matchCase->setTristate(false);
+    connect(m_matchCase, SIGNAL(toggled(bool)), this, SLOT(matchCaseUpdate()));
+    layout->addWidget(m_matchCase);
+
+    // Hightlight All. On by default
+    m_highlightAll->setCheckState(Qt::Checked);
+    m_highlightAll->setTristate(false);
+    connect(m_highlightAll, SIGNAL(toggled(bool)), this, SLOT(updateHighlight()));
+    layout->addWidget(m_highlightAll);
+
+    // stretching widget on the left
+    layout->addStretch();
+
+    setLayout(layout);
+
+    // we start off hidden
+    hide();
+}
+
+
+void FindBar::keyPressEvent(QKeyEvent *event)
+{
+    if (event->key() == Qt::Key_Return)
+    {
+        if (event->modifiers() == Qt::ShiftModifier)
+        {
+            findPrevious();
+        }
+        else
+        {
+            findNext();
+        }
+    }
+    
+    QWidget::keyPressEvent(event);
+}
+
+
+bool FindBar::matchCase() const
+{
+    return m_matchCase->isChecked();
+}
+
+
+bool FindBar::highlightAllState() const
+{
+    return m_highlightAll->isChecked();
+}
+
+
+void FindBar::setVisible(bool visible)
+{
+    // parent webwindow
+    WebWindow *w = qobject_cast<WebWindow *>(parent());
+
+    if (visible
+        && w->page()->isOnRekonqPage()
+        && w->view()->part() != 0)
+    {
+        // findNext is the slot containing part integration code
+        findNext();
+        return;
+    }
+
+    QWidget::setVisible(visible);
+
+    if (visible)
+    {
+        const QString selectedText = w->page()->selectedText();
+        if (!hasFocus() && !selectedText.isEmpty())
+        {
+            const QString previousText = m_lineEdit->text();
+            m_lineEdit->setText(selectedText);
+
+            if (m_lineEdit->text() != previousText)
+                findPrevious();
+            else
+                updateHighlight();
+        }
+        else if (selectedText.isEmpty())
+        {
+            emit searchString(m_lineEdit->text());
+        }
+
+        m_hideTimer->start(60000);
+
+        m_lineEdit->setFocus();
+        m_lineEdit->selectAll();
+    }
+    else
+    {
+        updateHighlight();
+        m_hideTimer->stop();
+    }
+}
+
+
+void FindBar::notifyMatch(bool match)
+{
+    QPalette p = m_lineEdit->palette();
+    KColorScheme colorScheme(p.currentColorGroup());
+
+    if (m_lineEdit->text().isEmpty())
+    {
+        p.setColor(QPalette::Base, colorScheme.background(KColorScheme::NormalBackground).color());
+    }
+    else
+    {
+        if (match)
+        {
+            p.setColor(QPalette::Base, colorScheme.background(KColorScheme::PositiveBackground).color());
+        }
+        else
+        {
+            p.setColor(QPalette::Base, colorScheme.background(KColorScheme::NegativeBackground).color()); // previous were 247, 230, 230
+        }
+    }
+    m_lineEdit->setPalette(p);
+    m_hideTimer->start(60000);
+}
+
+
+
+// FIND RELATED -------------------------------------------------------------------------------------
+void FindBar::find(const QString & search)
+{
+    _lastStringSearched = search;
+
+    updateHighlight();
+    findNext();
+}
+
+
+void FindBar::findNext()
+{
+    // parent webwindow
+    WebWindow *w = qobject_cast<WebWindow *>(parent());
+
+    if (w->page()->isOnRekonqPage())
+    {
+        // trigger part find action
+        KParts::ReadOnlyPart *p = w->view()->part();
+        if (p)
+        {
+//             connect(this, SIGNAL(triggerPartFind()), p, SLOT(slotFind()));
+//             emit triggerPartFind();
+            return;
+        }
+    }
+
+    if (isHidden())
+    {
+        QPoint previous_position = w->page()->currentFrame()->scrollPosition();
+        w->page()->focusNextPrevChild(true);
+        w->page()->currentFrame()->setScrollPosition(previous_position);
+        return;
+    }
+
+    QWebPage::FindFlags options = QWebPage::FindWrapsAroundDocument;
+    if (matchCase())
+        options |= QWebPage::FindCaseSensitively;
+
+    bool found = w->page()->findText(_lastStringSearched, options);
+    notifyMatch(found);
+
+    if (!found)
+    {
+        QPoint previous_position = w->page()->currentFrame()->scrollPosition();
+        w->page()->focusNextPrevChild(true);
+        w->page()->currentFrame()->setScrollPosition(previous_position);
+    }
+}
+
+
+void FindBar::findPrevious()
+{
+    // parent webwindow
+    WebWindow *w = qobject_cast<WebWindow *>(parent());
+
+    QWebPage::FindFlags options = QWebPage::FindBackward | QWebPage::FindWrapsAroundDocument;
+    if (matchCase())
+        options |= QWebPage::FindCaseSensitively;
+
+    bool found = w->page()->findText(_lastStringSearched, options);
+    notifyMatch(found);
+}
+
+
+void FindBar::matchCaseUpdate()
+{
+    // parent webwindow
+    WebWindow *w = qobject_cast<WebWindow *>(parent());
+
+    w->page()->findText(_lastStringSearched, QWebPage::FindBackward);
+    findNext();
+    updateHighlight();
+}
+
+
+void FindBar::updateHighlight()
+{
+    // parent webwindow
+    WebWindow *w = qobject_cast<WebWindow *>(parent());
+
+    QWebPage::FindFlags options = QWebPage::HighlightAllOccurrences;
+
+    w->page()->findText(QL1S(""), options); //Clear an existing highlight
+
+    if (!isHidden() && highlightAllState())
+    {
+        if (matchCase())
+            options |= QWebPage::FindCaseSensitively;
+
+        w->page()->findText(_lastStringSearched, options);
+    }
+}
diff --git a/src/webwindow/findbar.h b/src/webwindow/findbar.h
new file mode 100644
index 00000000..2371490d
--- /dev/null
+++ b/src/webwindow/findbar.h
@@ -0,0 +1,80 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2008-2012 by Andrea Diamantini <adjam7 at gmail dot com>
+* Copyright (C) 2009-2011 by Lionel Chauvin <megabigbug@yahoo.fr>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+#ifndef FINDBAR_H
+#define FINDBAR_H
+
+
+// Rekonq Includes
+#include "rekonq_defines.h"
+
+// Qt Includes
+#include <QWidget>
+
+// Forward Declarations
+class KLineEdit;
+
+class QString;
+class QCheckBox;
+
+
+class REKONQ_TESTS_EXPORT FindBar : public QWidget
+{
+    Q_OBJECT
+
+public:
+    FindBar(QWidget *parent);
+
+    bool matchCase() const;
+    void notifyMatch(bool match);
+    bool highlightAllState() const;
+
+    void setVisible(bool visible);
+
+protected:
+    void keyPressEvent(QKeyEvent *event);
+
+private Q_SLOTS:
+    void find(const QString &);
+    void matchCaseUpdate();
+    void findNext();
+    void findPrevious();
+    void updateHighlight();
+
+Q_SIGNALS:
+    void searchString(const QString &);
+
+private:
+    KLineEdit *m_lineEdit;
+    QTimer *m_hideTimer;
+    QCheckBox *m_matchCase;
+    QCheckBox *m_highlightAll;
+
+    QString _lastStringSearched;
+};
+
+#endif
diff --git a/src/webwindow/webwindow.cpp b/src/webwindow/webwindow.cpp
index 87006bf8..0af79cb6 100644
--- a/src/webwindow/webwindow.cpp
+++ b/src/webwindow/webwindow.cpp
@@ -39,6 +39,7 @@
 #include "webtab.h"
 
 #include "bookmarkstoolbar.h"
+#include "findbar.h"
 #include "rekonqfactory.h"
 #include "rekonqmenu.h"
 #include "settingsdialog.h"
@@ -72,6 +73,7 @@ WebWindow::WebWindow(QWidget *parent, WebPage *pg)
     , _bar(new UrlBar(_tab))
     , _mainToolBar(0)
     , _bookmarksBar(0)
+    , m_findBar(new FindBar(this))
     , m_loadStopReloadAction(0)
     , m_rekonqMenu(0)
     , m_popup(new QLabel(this))
@@ -101,6 +103,7 @@ WebWindow::WebWindow(QWidget *parent, WebPage *pg)
     l->addWidget(_mainToolBar);
     l->addWidget(_bookmarksBar);
     l->addWidget(_tab);
+    l->addWidget(m_findBar);
     l->setContentsMargins(0, 0, 0, 0);
 
     setContentsMargins(0, 0, 0, 0);
@@ -128,6 +131,14 @@ WebWindow::WebWindow(QWidget *parent, WebPage *pg)
 }
 
 
+WebWindow::~WebWindow()
+{
+    m_hidePopupTimer->stop();
+
+    BookmarkManager::self()->removeBookmarkBar(_bookmarksBar);
+}
+
+
 void WebWindow::setupActions()
 {
     KAction *a;
@@ -178,6 +189,11 @@ void WebWindow::setupActions()
     KStandardAction::preferences(this, SLOT(preferences()), actionCollection());
     KStandardAction::quit(rApp, SLOT(queryQuit()), actionCollection());
 
+    // find action
+    a = KStandardAction::find(m_findBar, SLOT(show()), actionCollection());
+    KShortcut findShortcut = KStandardShortcut::find();
+    a->setShortcut(findShortcut);
+
     a = KStandardAction::fullScreen(this, SLOT(viewFullScreen(bool)), this, actionCollection());
     KShortcut fullScreenShortcut = KStandardShortcut::fullScreen();
     fullScreenShortcut.setAlternate(Qt::Key_F11);
diff --git a/src/webwindow/webwindow.h b/src/webwindow/webwindow.h
index 8d9afefc..697d74e3 100644
--- a/src/webwindow/webwindow.h
+++ b/src/webwindow/webwindow.h
@@ -44,6 +44,7 @@ class WebTab;
 class WebView;
 
 class BookmarkToolBar;
+class FindBar;
 class UrlBar;
 class RekonqMenu;
 
@@ -62,7 +63,8 @@ class WebWindow : public QWidget
 
 public:
     WebWindow(QWidget *parent = 0, WebPage *pg = 0);
-
+    ~WebWindow();
+    
     void load(const QUrl &);
 
     WebPage *page();
@@ -80,7 +82,7 @@ public:
 
     virtual KActionCollection *actionCollection () const;
     QAction *actionByName(const QString &name);
-    
+
 private:
     void setupActions();
     void setupTools();
@@ -136,6 +138,8 @@ private:
     KToolBar *_mainToolBar;
     BookmarkToolBar *_bookmarksBar;
 
+    FindBar *m_findBar;
+
     KAction *m_loadStopReloadAction;
 
     KMenu *m_historyBackMenu;