Cleaning urlbar API and improving animation

WARNING:
This is the best animation I could provide with the KComboBox class.
In the KLineEdit derived it works perfectly. In the Combos there are some
shadows on top :(

Squashed commit of the following:

commit 01e72a1996161028f8dbdc4e355daf00f954eace
commit 8bc032d98a4987d3b01566ac520f5e8a1a095dd0
commit bc5cfd9f7d1b34f5af06dd7af6de8d3b2edb277b
commit 73b4deac84d91fece407b9c700dcc61e36a34327
commit c55b753913b2619607c6aa11cabbf77ca3c84e3e
commit b901fbe71b7539f65260c4fa9bbfb22f4ea997b9
commit 1de363d9614c1309ac1ac4a8eea7e70be7f2f3ed
commit 76d6373f8b6c41f5c27b8404db2074f9bfc309c9
commit d741aa7109db016abc292d49fb45d15bb09e6c01

3 files changed, 50 insertions, 78 deletions

diff --git a/src/urlbar/lineedit.cpp b/src/urlbar/lineedit.cpp
index f3c93e8e..ac92b858 100644
--- a/src/urlbar/lineedit.cpp
+++ b/src/urlbar/lineedit.cpp
@@ -42,7 +42,7 @@ LineEdit::LineEdit(QWidget* parent)
     setMinimumWidth(200);
     setFocusPolicy(Qt::WheelFocus);
     setHandleSignals(true);
-    setClearButtonShown(true);
+    setClearButtonShown(false);
 }
 
 
diff --git a/src/urlbar/urlbar.cpp b/src/urlbar/urlbar.cpp
index 57108d29..a04d6534 100644
--- a/src/urlbar/urlbar.cpp
+++ b/src/urlbar/urlbar.cpp
@@ -50,14 +50,13 @@
 #include <QTimer>
 #include <QVBoxLayout>
 
-QColor UrlBar::s_defaultBaseColor;
-
 
 UrlBar::UrlBar(QWidget *parent)
     : KComboBox(true, parent)
     , m_lineEdit(new LineEdit)
-    , m_progress(0)
     , m_box(new CompletionWidget(this))
+    , _tab(0)
+    , _privateMode(false)
 {
     //cosmetic
     setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
@@ -72,11 +71,6 @@ UrlBar::UrlBar(QWidget *parent)
     p.setColor(QPalette::Base, Qt::transparent);
     m_lineEdit->setPalette(p);
 
-    if (!s_defaultBaseColor.isValid())
-    {
-        s_defaultBaseColor = palette().color(QPalette::Base);
-    }
-
     setLineEdit(m_lineEdit);
 
     // clear the URL bar
@@ -123,13 +117,6 @@ void UrlBar::setUrl(const QUrl& url)
 }
 
 
-void UrlBar::setProgress(int progress)
-{
-    m_progress = progress;
-    update();
-}
-
-
 void UrlBar::updateUrl()
 {
     // Don't change my typed url...
@@ -184,26 +171,21 @@ void UrlBar::activated(const QString& urlString, Rekonq::OpenType type)
 }
 
 
-void UrlBar::loadFinished(bool)
-{
-    // reset progress bar after small delay
-    m_progress = 0;
-    QTimer::singleShot(200, this, SLOT(update()));
-}
-
-
-void UrlBar::updateProgress(int progress)
-{
-    m_progress = progress;
-    update();
-}
-
-
 void UrlBar::paintEvent(QPaintEvent *event)
 {
+    QColor backgroundColor;
+    if( _privateMode )
+    {
+        backgroundColor = QColor(192, 192, 192);  // gray
+    }
+    else
+    {
+        backgroundColor = Application::palette().color(QPalette::Base);
+    }
+    
     // set background color of UrlBar
     QPalette p = palette();
-    p.setColor(QPalette::Base, s_defaultBaseColor);
+    p.setColor(QPalette::Base, backgroundColor);
     setPalette(p);
 
     KComboBox::paintEvent(event);
@@ -221,11 +203,20 @@ void UrlBar::paintEvent(QPaintEvent *event)
         {
             loadingColor = QColor(116, 192, 250);
         }
-        painter.setBrush(generateGradient(loadingColor, height()));
+        int progr = _tab->progress();
+        
+        backgroundColor.setAlpha(0);
+        backgroundColor.setAlpha(200);
+        QLinearGradient gradient(0, 0, width(), height() );
+        gradient.setColorAt(0, loadingColor);
+        gradient.setColorAt(((double)progr)/100, backgroundColor);
+        
+        painter.setBrush( gradient );
         painter.setPen(Qt::transparent);
 
+
         QRect backgroundRect = m_lineEdit->frameGeometry();
-        int mid = backgroundRect.width() * m_progress / 100;
+        int mid = backgroundRect.width() * progr / 100;
         QRect progressRect(backgroundRect.x(), backgroundRect.y(), mid, backgroundRect.height());
         painter.drawRect(progressRect);
         painter.end();
@@ -239,41 +230,8 @@ QSize UrlBar::sizeHint() const
 }
 
 
-QLinearGradient UrlBar::generateGradient(const QColor &color, int height)
-{
-    QColor base = s_defaultBaseColor;
-    base.setAlpha(0);
-    QColor barColor = color;
-    barColor.setAlpha(200);
-    QLinearGradient gradient(0, 0, 0, height);
-    gradient.setColorAt(0, base);
-    gradient.setColorAt(0.25, barColor.lighter(120));
-    gradient.setColorAt(0.5, barColor);
-    gradient.setColorAt(0.75, barColor.lighter(120));
-    gradient.setColorAt(1, base);
-    return gradient;
-}
-
-
-void UrlBar::setBackgroundColor(QColor c)
-{
-    s_defaultBaseColor = c;
-    update();
-}
-
-
-bool UrlBar::isLoading()
-{
-    if(m_progress == 0)
-    {
-        return false;
-    }
-    return true;
-}
-
 void UrlBar::keyPressEvent(QKeyEvent *event)
 {
-
     // this handles the Modifiers + Return key combinations
     QString currentText = m_lineEdit->text().trimmed();
     if ((event->key() == Qt::Key_Enter || event->key() == Qt::Key_Return)
@@ -338,3 +296,22 @@ void UrlBar::focusInEvent(QFocusEvent *event)
     
     KComboBox::focusInEvent(event);
 }
+
+
+void UrlBar::setCurrentTab(WebTab *tab)
+{
+    if(_tab)
+        disconnect(_tab->view(), SIGNAL(urlChanged(const QUrl &)), this, SLOT(setUrl(const QUrl &)));
+    _tab = tab;
+    connect(_tab->view(), SIGNAL(urlChanged(const QUrl &)), this, SLOT(setUrl(const QUrl &)));
+
+    // update it now (the first time)
+    setUrl( _tab->url() );
+    update();
+}
+
+
+void UrlBar::setPrivateMode(bool on)
+{
+    _privateMode = on;
+}
diff --git a/src/urlbar/urlbar.h b/src/urlbar/urlbar.h
index 552d1ee0..991b9038 100644
--- a/src/urlbar/urlbar.h
+++ b/src/urlbar/urlbar.h
@@ -34,6 +34,7 @@
 // Local Includes
 #include "lineedit.h"
 #include "completionwidget.h"
+#include "webtab.h"
 
 // KDE Includes
 #include <KUrl>
@@ -59,18 +60,16 @@ public:
     void selectAll() const;
     KUrl url() const;
     QSize sizeHint() const;
-    void setBackgroundColor(QColor);
-    bool isLoading();
-    void setProgress(int progress);
 
+    void setCurrentTab(WebTab *);
+    void setPrivateMode(bool on);
+    
 public slots:
     void setUrl(const QUrl &url);
-    void updateProgress(int progress);
     void updateUrl();
 
 private slots:
     void activated(const QString& url, Rekonq::OpenType = Rekonq::CurrentTab);
-    void loadFinished(bool);
     void suggestUrls(const QString &editedText);
 
 protected:
@@ -79,17 +78,13 @@ protected:
     virtual void focusInEvent(QFocusEvent *event);
 
 private:
-    static QLinearGradient generateGradient(const QColor &color, int height);
-
-    static QColor s_defaultBaseColor;
-
     LineEdit *m_lineEdit;
 
     KUrl m_currentUrl;
-    int m_progress;
 
     CompletionWidget *m_box;
-    KUrl m_suggestedUrl;
+    WebTab *_tab;
+    bool _privateMode;
 };
 
 #endif