1 files changed, 327 insertions, 0 deletions
diff --git a/src/urllineedit.cpp b/src/urllineedit.cpp
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+++ b/src/urllineedit.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2008 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.
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License versions 2.0 or 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 GNU General Public Licensing requirements will be met:
+** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
+** http://www.gnu.org/copyleft/gpl.html.  In addition, as a special
+** exception, Nokia gives you certain additional rights. These rights
+** are described in the Nokia Qt GPL Exception version 1.3, included in
+** the file GPL_EXCEPTION.txt in this package.
+**
+** Qt for Windows(R) Licensees
+** As a special exception, Nokia, as the sole copyright holder for Qt
+** Designer, grants users of the Qt/Eclipse Integration plug-in the
+** right for the Qt/Eclipse Integration to link to functionality
+** provided by Qt Designer and its related libraries.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+#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);
+    QWidget::keyPressEvent(event);
+}
+
+bool ExLineEdit::event(QEvent *event)
+{
+    if (event->type() == QEvent::ShortcutOverride)
+        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);
+}
+
+
+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(m_webView->url().toString());
+        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(url.toString());
+    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(m_webView->url().toString());
+    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);
+    }
+}