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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "urllineedit.h"
+
+#include "browserapplication.h"
+#include "searchlineedit.h"
+#include "webview.h"
+
+#include <QtCore/QEvent>
+
+#include <QtGui/QApplication>
+#include <QtGui/QCompleter>
+#include <QtGui/QFocusEvent>
+#include <QtGui/QHBoxLayout>
+#include <QtGui/QLabel>
+#include <QtGui/QLineEdit>
+#include <QtGui/QPainter>
+#include <QtGui/QStyle>
+#include <QtGui/QStyleOptionFrameV2>
+
+#include <QtCore/QDebug>
+
+ExLineEdit::ExLineEdit(QWidget *parent)
+ : QWidget(parent)
+ , m_leftWidget(0)
+ , m_lineEdit(new QLineEdit(this))
+ , m_clearButton(0)
+{
+ setFocusPolicy(m_lineEdit->focusPolicy());
+ setAttribute(Qt::WA_InputMethodEnabled);
+ setSizePolicy(m_lineEdit->sizePolicy());
+ setBackgroundRole(m_lineEdit->backgroundRole());
+ setMouseTracking(true);
+ setAcceptDrops(true);
+ setAttribute(Qt::WA_MacShowFocusRect, true);
+ QPalette p = m_lineEdit->palette();
+ setPalette(p);
+
+ // line edit
+ m_lineEdit->setFrame(false);
+ m_lineEdit->setFocusProxy(this);
+ m_lineEdit->setAttribute(Qt::WA_MacShowFocusRect, false);
+ QPalette clearPalette = m_lineEdit->palette();
+ clearPalette.setBrush(QPalette::Base, QBrush(Qt::transparent));
+ m_lineEdit->setPalette(clearPalette);
+
+ // clearButton
+ m_clearButton = new ClearButton(this);
+ connect(m_clearButton, SIGNAL(clicked()),
+ m_lineEdit, SLOT(clear()));
+ connect(m_lineEdit, SIGNAL(textChanged(const QString&)),
+ m_clearButton, SLOT(textChanged(const QString&)));
+}
+
+void ExLineEdit::setLeftWidget(QWidget *widget)
+{
+ m_leftWidget = widget;
+}
+
+QWidget *ExLineEdit::leftWidget() const
+{
+ return m_leftWidget;
+}
+
+void ExLineEdit::resizeEvent(QResizeEvent *event)
+{
+ Q_ASSERT(m_leftWidget);
+ updateGeometries();
+ QWidget::resizeEvent(event);
+}
+
+void ExLineEdit::updateGeometries()
+{
+ QStyleOptionFrameV2 panel;
+ initStyleOption(&panel);
+ QRect rect = style()->subElementRect(QStyle::SE_LineEditContents, &panel, this);
+
+ int height = rect.height();
+ int width = rect.width();
+
+ int m_leftWidgetHeight = m_leftWidget->height();
+ m_leftWidget->setGeometry(rect.x() + 2, rect.y() + (height - m_leftWidgetHeight)/2,
+ m_leftWidget->width(), m_leftWidget->height());
+
+ int clearButtonWidth = this->height();
+ m_lineEdit->setGeometry(m_leftWidget->x() + m_leftWidget->width(), 0,
+ width - clearButtonWidth - m_leftWidget->width(), this->height());
+
+ m_clearButton->setGeometry(this->width() - clearButtonWidth, 0,
+ clearButtonWidth, this->height());
+}
+
+void ExLineEdit::initStyleOption(QStyleOptionFrameV2 *option) const
+{
+ option->initFrom(this);
+ option->rect = contentsRect();
+ option->lineWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth, option, this);
+ option->midLineWidth = 0;
+ option->state |= QStyle::State_Sunken;
+ if (m_lineEdit->isReadOnly())
+ option->state |= QStyle::State_ReadOnly;
+#ifdef QT_KEYPAD_NAVIGATION
+ if (hasEditFocus())
+ option->state |= QStyle::State_HasEditFocus;
+#endif
+ option->features = QStyleOptionFrameV2::None;
+}
+
+QSize ExLineEdit::sizeHint() const
+{
+ m_lineEdit->setFrame(true);
+ QSize size = m_lineEdit->sizeHint();
+ m_lineEdit->setFrame(false);
+ return size;
+}
+
+void ExLineEdit::focusInEvent(QFocusEvent *event)
+{
+ m_lineEdit->event(event);
+ QWidget::focusInEvent(event);
+}
+
+void ExLineEdit::focusOutEvent(QFocusEvent *event)
+{
+ m_lineEdit->event(event);
+
+ if (m_lineEdit->completer()) {
+ connect(m_lineEdit->completer(), SIGNAL(activated(QString)),
+ m_lineEdit, SLOT(setText(QString)));
+ connect(m_lineEdit->completer(), SIGNAL(highlighted(QString)),
+ m_lineEdit, SLOT(_q_completionHighlighted(QString)));
+ }
+ QWidget::focusOutEvent(event);
+}
+
+void ExLineEdit::keyPressEvent(QKeyEvent *event)
+{
+ m_lineEdit->event(event);
+}
+
+bool ExLineEdit::event(QEvent *event)
+{
+ if (event->type() == QEvent::ShortcutOverride)
+ return m_lineEdit->event(event);
+ return QWidget::event(event);
+}
+
+void ExLineEdit::paintEvent(QPaintEvent *)
+{
+ QPainter p(this);
+ QStyleOptionFrameV2 panel;
+ initStyleOption(&panel);
+ style()->drawPrimitive(QStyle::PE_PanelLineEdit, &panel, &p, this);
+}
+
+QVariant ExLineEdit::inputMethodQuery(Qt::InputMethodQuery property) const
+{
+ return m_lineEdit->inputMethodQuery(property);
+}
+
+void ExLineEdit::inputMethodEvent(QInputMethodEvent *e)
+{
+ m_lineEdit->event(e);
+}
+
+
+class UrlIconLabel : public QLabel
+{
+
+public:
+ UrlIconLabel(QWidget *parent);
+
+ WebView *m_webView;
+
+protected:
+ void mousePressEvent(QMouseEvent *event);
+ void mouseMoveEvent(QMouseEvent *event);
+
+private:
+ QPoint m_dragStartPos;
+
+};
+
+UrlIconLabel::UrlIconLabel(QWidget *parent)
+ : QLabel(parent)
+ , m_webView(0)
+{
+ setMinimumWidth(16);
+ setMinimumHeight(16);
+}
+
+void UrlIconLabel::mousePressEvent(QMouseEvent *event)
+{
+ if (event->button() == Qt::LeftButton)
+ m_dragStartPos = event->pos();
+ QLabel::mousePressEvent(event);
+}
+
+void UrlIconLabel::mouseMoveEvent(QMouseEvent *event)
+{
+ if (event->buttons() == Qt::LeftButton
+ && (event->pos() - m_dragStartPos).manhattanLength() > QApplication::startDragDistance()
+ && m_webView) {
+ QDrag *drag = new QDrag(this);
+ QMimeData *mimeData = new QMimeData;
+ mimeData->setText(QString::fromUtf8(m_webView->url().toEncoded()));
+ QList<QUrl> urls;
+ urls.append(m_webView->url());
+ mimeData->setUrls(urls);
+ drag->setMimeData(mimeData);
+ drag->exec();
+ }
+}
+
+UrlLineEdit::UrlLineEdit(QWidget *parent)
+ : ExLineEdit(parent)
+ , m_webView(0)
+ , m_iconLabel(0)
+{
+ // icon
+ m_iconLabel = new UrlIconLabel(this);
+ m_iconLabel->resize(16, 16);
+ setLeftWidget(m_iconLabel);
+ m_defaultBaseColor = palette().color(QPalette::Base);
+
+ webViewIconChanged();
+}
+
+void UrlLineEdit::setWebView(WebView *webView)
+{
+ Q_ASSERT(!m_webView);
+ m_webView = webView;
+ m_iconLabel->m_webView = webView;
+ connect(webView, SIGNAL(urlChanged(const QUrl &)),
+ this, SLOT(webViewUrlChanged(const QUrl &)));
+ connect(webView, SIGNAL(loadFinished(bool)),
+ this, SLOT(webViewIconChanged()));
+ connect(webView, SIGNAL(iconChanged()),
+ this, SLOT(webViewIconChanged()));
+ connect(webView, SIGNAL(loadProgress(int)),
+ this, SLOT(update()));
+}
+
+void UrlLineEdit::webViewUrlChanged(const QUrl &url)
+{
+ m_lineEdit->setText(QString::fromUtf8(url.toEncoded()));
+ m_lineEdit->setCursorPosition(0);
+}
+
+void UrlLineEdit::webViewIconChanged()
+{
+ QUrl url = (m_webView) ? m_webView->url() : QUrl();
+ QIcon icon = BrowserApplication::instance()->icon(url);
+ QPixmap pixmap(icon.pixmap(16, 16));
+ m_iconLabel->setPixmap(pixmap);
+}
+
+QLinearGradient UrlLineEdit::generateGradient(const QColor &color) const
+{
+ QLinearGradient gradient(0, 0, 0, height());
+ gradient.setColorAt(0, m_defaultBaseColor);
+ gradient.setColorAt(0.15, color.lighter(120));
+ gradient.setColorAt(0.5, color);
+ gradient.setColorAt(0.85, color.lighter(120));
+ gradient.setColorAt(1, m_defaultBaseColor);
+ return gradient;
+}
+
+void UrlLineEdit::focusOutEvent(QFocusEvent *event)
+{
+ if (m_lineEdit->text().isEmpty() && m_webView)
+ m_lineEdit->setText(QString::fromUtf8(m_webView->url().toEncoded()));
+ ExLineEdit::focusOutEvent(event);
+}
+
+void UrlLineEdit::paintEvent(QPaintEvent *event)
+{
+ QPalette p = palette();
+ if (m_webView && m_webView->url().scheme() == QLatin1String("https")) {
+ QColor lightYellow(248, 248, 210);
+ p.setBrush(QPalette::Base, generateGradient(lightYellow));
+ } else {
+ p.setBrush(QPalette::Base, m_defaultBaseColor);
+ }
+ setPalette(p);
+ ExLineEdit::paintEvent(event);
+
+ QPainter painter(this);
+ QStyleOptionFrameV2 panel;
+ initStyleOption(&panel);
+ QRect backgroundRect = style()->subElementRect(QStyle::SE_LineEditContents, &panel, this);
+ if (m_webView && !hasFocus()) {
+ int progress = m_webView->progress();
+ QColor loadingColor = QColor(116, 192, 250);
+ painter.setBrush(generateGradient(loadingColor));
+ painter.setPen(Qt::transparent);
+ int mid = backgroundRect.width() / 100 * progress;
+ QRect progressRect(backgroundRect.x(), backgroundRect.y(), mid, backgroundRect.height());
+ painter.drawRect(progressRect);
+ }
+}
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