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-rw-r--r--dist/changes-4.6.28
-rw-r--r--src/3rdparty/webkit/VERSION2
-rw-r--r--src/3rdparty/webkit/WebCore/ChangeLog38
-rw-r--r--src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.cpp29
-rw-r--r--src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.h10
-rw-r--r--src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.cpp22
-rw-r--r--src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.h8
-rw-r--r--src/corelib/codecs/qtextcodec.cpp4
-rw-r--r--src/gui/widgets/qabstractslider.cpp67
-rw-r--r--src/gui/widgets/qabstractslider_p.h1
-rw-r--r--src/gui/widgets/qdialogbuttonbox.cpp2
-rw-r--r--src/gui/widgets/qscrollbar.cpp16
-rw-r--r--src/xml/dom/qdom.cpp2
13 files changed, 151 insertions, 58 deletions
diff --git a/dist/changes-4.6.2 b/dist/changes-4.6.2
index b1c0159..aaaaacc 100644
--- a/dist/changes-4.6.2
+++ b/dist/changes-4.6.2
@@ -251,6 +251,14 @@ Qt for Windows CE
Qt for Symbian
--------------
+ * [QTBUG-6556] Improve the DEF file handling scheme, to allow simple enable/
+ disable of DEF file usage (for use _during development only_ to decouple
+ the need to update the DEF files at the precise point that symbols are
+ removed, therefore allowing builds by CI systems to succeed even if symbols
+ have been removed. This does not remove the need to update the DEF files
+ before release. NOTE: Builds generated using this flag are not binary
+ compatible with previous versions of Qt.)
+
- QProcess
* [QTBUG-7667] Fixed no-timeout case for QProcess::waitForFinished.
diff --git a/src/3rdparty/webkit/VERSION b/src/3rdparty/webkit/VERSION
index c304876..4348cbc 100644
--- a/src/3rdparty/webkit/VERSION
+++ b/src/3rdparty/webkit/VERSION
@@ -8,4 +8,4 @@ The commit imported was from the
and has the sha1 checksum
- 69dd29fbeb12d076741dce70ac6bc155101ccd6f
+ da5d96a26e80162027bc95ce7e5725fe4b277ff7
diff --git a/src/3rdparty/webkit/WebCore/ChangeLog b/src/3rdparty/webkit/WebCore/ChangeLog
index 18d119a..1f6f290 100644
--- a/src/3rdparty/webkit/WebCore/ChangeLog
+++ b/src/3rdparty/webkit/WebCore/ChangeLog
@@ -2,6 +2,44 @@
Reviewed by Kenneth Rohde Christiansen.
+ [Qt] In the StyledPainter determine the style from the Render and Scrollbar theme instead of from the paint device
+ https://bugs.webkit.org/show_bug.cgi?id=34054
+
+ Getting the style from the painter's paint device is a hack that breaks when
+ the paint device's style is different than the style that is used when
+ calculating the metries earlier when there is no painter available.
+
+ This change moves us closer to always using the same style.
+
+ * platform/qt/RenderThemeQt.cpp:
+ (WebCore::StylePainter::StylePainter):
+ (WebCore::StylePainter::init):
+ (WebCore::RenderThemeQt::paintButton):
+ (WebCore::RenderThemeQt::paintTextField):
+ (WebCore::RenderThemeQt::paintMenuList):
+ (WebCore::RenderThemeQt::paintMenuListButton):
+ (WebCore::RenderThemeQt::paintSliderTrack):
+ (WebCore::RenderThemeQt::paintMediaMuteButton):
+ (WebCore::RenderThemeQt::paintMediaPlayButton):
+ (WebCore::RenderThemeQt::paintMediaSliderTrack):
+ (WebCore::RenderThemeQt::paintMediaSliderThumb):
+ * platform/qt/RenderThemeQt.h:
+ * platform/qt/ScrollbarThemeQt.cpp:
+ (WebCore::ScrollbarThemeQt::paint):
+ (WebCore::ScrollbarThemeQt::hitTest):
+ (WebCore::ScrollbarThemeQt::shouldCenterOnThumb):
+ (WebCore::ScrollbarThemeQt::scrollbarThickness):
+ (WebCore::ScrollbarThemeQt::thumbLength):
+ (WebCore::ScrollbarThemeQt::trackPosition):
+ (WebCore::ScrollbarThemeQt::trackLength):
+ (WebCore::ScrollbarThemeQt::paintScrollCorner):
+ (WebCore::ScrollbarThemeQt::style):
+ * platform/qt/ScrollbarThemeQt.h:
+
+2010-01-25 Simon Hausmann <hausmann@webkit.org>
+
+ Reviewed by Kenneth Rohde Christiansen.
+
[Qt] Use the fallback style on Maemo 5
https://bugs.webkit.org/show_bug.cgi?id=34376
diff --git a/src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.cpp b/src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.cpp
index 6a1eee8..37a6408 100644
--- a/src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.cpp
+++ b/src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.cpp
@@ -44,6 +44,7 @@
#include "Page.h"
#include "RenderBox.h"
#include "RenderTheme.h"
+#include "ScrollbarThemeQt.h"
#include "UserAgentStyleSheets.h"
#include "QWebPageClient.h"
#include "qwebpage.h"
@@ -66,17 +67,17 @@ namespace WebCore {
using namespace HTMLNames;
-StylePainter::StylePainter(const RenderObject::PaintInfo& paintInfo)
+StylePainter::StylePainter(RenderThemeQt* theme, const RenderObject::PaintInfo& paintInfo)
{
- init(paintInfo.context ? paintInfo.context : 0);
+ init(paintInfo.context ? paintInfo.context : 0, theme->qStyle());
}
-StylePainter::StylePainter(GraphicsContext* context)
+StylePainter::StylePainter(ScrollbarThemeQt* theme, GraphicsContext* context)
{
- init(context);
+ init(context, theme->style());
}
-void StylePainter::init(GraphicsContext* context)
+void StylePainter::init(GraphicsContext* context, QStyle* themeStyle)
{
painter = static_cast<QPainter*>(context->platformContext());
widget = 0;
@@ -85,7 +86,7 @@ void StylePainter::init(GraphicsContext* context)
dev = painter->device();
if (dev && dev->devType() == QInternal::Widget)
widget = static_cast<QWidget*>(dev);
- style = (widget ? widget->style() : QApplication::style());
+ style = themeStyle;
if (painter) {
// the styles often assume being called with a pristine painter where no brush is set,
@@ -464,7 +465,7 @@ void RenderThemeQt::setButtonPadding(RenderStyle* style) const
bool RenderThemeQt::paintButton(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r)
{
- StylePainter p(i);
+ StylePainter p(this, i);
if (!p.isValid())
return true;
@@ -497,7 +498,7 @@ void RenderThemeQt::adjustTextFieldStyle(CSSStyleSelector*, RenderStyle* style,
bool RenderThemeQt::paintTextField(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r)
{
- StylePainter p(i);
+ StylePainter p(this, i);
if (!p.isValid())
return true;
@@ -566,7 +567,7 @@ void RenderThemeQt::setPopupPadding(RenderStyle* style) const
bool RenderThemeQt::paintMenuList(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r)
{
- StylePainter p(i);
+ StylePainter p(this, i);
if (!p.isValid())
return true;
@@ -606,7 +607,7 @@ void RenderThemeQt::adjustMenuListButtonStyle(CSSStyleSelector*, RenderStyle* st
bool RenderThemeQt::paintMenuListButton(RenderObject* o, const RenderObject::PaintInfo& i,
const IntRect& r)
{
- StylePainter p(i);
+ StylePainter p(this, i);
if (!p.isValid())
return true;
@@ -837,7 +838,7 @@ bool RenderThemeQt::paintMediaMuteButton(RenderObject* o, const RenderObject::Pa
if (!mediaElement)
return false;
- StylePainter p(paintInfo);
+ StylePainter p(this, paintInfo);
if (!p.isValid())
return true;
@@ -866,7 +867,7 @@ bool RenderThemeQt::paintMediaPlayButton(RenderObject* o, const RenderObject::Pa
if (!mediaElement)
return false;
- StylePainter p(paintInfo);
+ StylePainter p(this, paintInfo);
if (!p.isValid())
return true;
@@ -905,7 +906,7 @@ bool RenderThemeQt::paintMediaSliderTrack(RenderObject* o, const RenderObject::P
if (!mediaElement)
return false;
- StylePainter p(paintInfo);
+ StylePainter p(this, paintInfo);
if (!p.isValid())
return true;
@@ -932,7 +933,7 @@ bool RenderThemeQt::paintMediaSliderThumb(RenderObject* o, const RenderObject::P
if (!mediaElement)
return false;
- StylePainter p(paintInfo);
+ StylePainter p(this, paintInfo);
if (!p.isValid())
return true;
diff --git a/src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.h b/src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.h
index 19337ac..13fb42f 100644
--- a/src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.h
+++ b/src/3rdparty/webkit/WebCore/platform/qt/RenderThemeQt.h
@@ -35,6 +35,7 @@ namespace WebCore {
class RenderStyle;
class HTMLMediaElement;
+class ScrollbarThemeQt;
class RenderThemeQt : public RenderTheme {
private:
@@ -75,6 +76,8 @@ public:
virtual String extraMediaControlsStyleSheet();
#endif
+ QStyle* qStyle() const;
+
protected:
virtual bool paintCheckbox(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r);
virtual void setCheckboxSize(RenderStyle*) const;
@@ -137,7 +140,6 @@ private:
void setButtonPadding(RenderStyle*) const;
void setPopupPadding(RenderStyle*) const;
- QStyle* qStyle() const;
QStyle* fallbackStyle() const;
Page* m_page;
@@ -152,8 +154,8 @@ private:
class StylePainter {
public:
- explicit StylePainter(const RenderObject::PaintInfo& paintInfo);
- explicit StylePainter(GraphicsContext* context);
+ explicit StylePainter(RenderThemeQt*, const RenderObject::PaintInfo&);
+ explicit StylePainter(ScrollbarThemeQt*, GraphicsContext*);
~StylePainter();
bool isValid() const { return painter && style; }
@@ -170,7 +172,7 @@ public:
{ style->drawComplexControl(cc, &opt, painter, widget); }
private:
- void init(GraphicsContext* context);
+ void init(GraphicsContext* context, QStyle*);
QBrush oldBrush;
bool oldAntialiasing;
diff --git a/src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.cpp b/src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.cpp
index 561e55f..c0692ca 100644
--- a/src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.cpp
+++ b/src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.cpp
@@ -140,7 +140,7 @@ bool ScrollbarThemeQt::paint(Scrollbar* scrollbar, GraphicsContext* graphicsCont
return false;
}
- StylePainter p(graphicsContext);
+ StylePainter p(this, graphicsContext);
if (!p.isValid())
return true;
@@ -172,14 +172,14 @@ ScrollbarPart ScrollbarThemeQt::hitTest(Scrollbar* scrollbar, const PlatformMous
QStyleOptionSlider* opt = styleOptionSlider(scrollbar);
const QPoint pos = scrollbar->convertFromContainingWindow(evt.pos());
opt->rect.moveTo(QPoint(0, 0));
- QStyle::SubControl sc = QApplication::style()->hitTestComplexControl(QStyle::CC_ScrollBar, opt, pos, 0);
+ QStyle::SubControl sc = style()->hitTestComplexControl(QStyle::CC_ScrollBar, opt, pos, 0);
return scrollbarPart(sc);
}
bool ScrollbarThemeQt::shouldCenterOnThumb(Scrollbar*, const PlatformMouseEvent& evt)
{
// Middle click centers slider thumb (if supported)
- return QApplication::style()->styleHint(QStyle::SH_ScrollBar_MiddleClickAbsolutePosition) && evt.button() == MiddleButton;
+ return style()->styleHint(QStyle::SH_ScrollBar_MiddleClickAbsolutePosition) && evt.button() == MiddleButton;
}
void ScrollbarThemeQt::invalidatePart(Scrollbar* scrollbar, ScrollbarPart)
@@ -190,13 +190,12 @@ void ScrollbarThemeQt::invalidatePart(Scrollbar* scrollbar, ScrollbarPart)
int ScrollbarThemeQt::scrollbarThickness(ScrollbarControlSize controlSize)
{
- QStyle* s = QApplication::style();
QStyleOptionSlider o;
o.orientation = Qt::Vertical;
o.state &= ~QStyle::State_Horizontal;
if (controlSize != RegularScrollbar)
o.state |= QStyle::State_Mini;
- return s->pixelMetric(QStyle::PM_ScrollBarExtent, &o, 0);
+ return style()->pixelMetric(QStyle::PM_ScrollBarExtent, &o, 0);
}
int ScrollbarThemeQt::thumbPosition(Scrollbar* scrollbar)
@@ -209,21 +208,21 @@ int ScrollbarThemeQt::thumbPosition(Scrollbar* scrollbar)
int ScrollbarThemeQt::thumbLength(Scrollbar* scrollbar)
{
QStyleOptionSlider* opt = styleOptionSlider(scrollbar);
- IntRect thumb = QApplication::style()->subControlRect(QStyle::CC_ScrollBar, opt, QStyle::SC_ScrollBarSlider, 0);
+ IntRect thumb = style()->subControlRect(QStyle::CC_ScrollBar, opt, QStyle::SC_ScrollBarSlider, 0);
return scrollbar->orientation() == HorizontalScrollbar ? thumb.width() : thumb.height();
}
int ScrollbarThemeQt::trackPosition(Scrollbar* scrollbar)
{
QStyleOptionSlider* opt = styleOptionSlider(scrollbar);
- IntRect track = QApplication::style()->subControlRect(QStyle::CC_ScrollBar, opt, QStyle::SC_ScrollBarGroove, 0);
+ IntRect track = style()->subControlRect(QStyle::CC_ScrollBar, opt, QStyle::SC_ScrollBarGroove, 0);
return scrollbar->orientation() == HorizontalScrollbar ? track.x() - scrollbar->x() : track.y() - scrollbar->y();
}
int ScrollbarThemeQt::trackLength(Scrollbar* scrollbar)
{
QStyleOptionSlider* opt = styleOptionSlider(scrollbar);
- IntRect track = QApplication::style()->subControlRect(QStyle::CC_ScrollBar, opt, QStyle::SC_ScrollBarGroove, 0);
+ IntRect track = style()->subControlRect(QStyle::CC_ScrollBar, opt, QStyle::SC_ScrollBarGroove, 0);
return scrollbar->orientation() == HorizontalScrollbar ? track.width() : track.height();
}
@@ -237,7 +236,7 @@ void ScrollbarThemeQt::paintScrollCorner(ScrollView* scrollView, GraphicsContext
#if QT_VERSION < 0x040500
context->fillRect(rect, QApplication::palette().color(QPalette::Normal, QPalette::Window));
#else
- StylePainter p(context);
+ StylePainter p(this, context);
if (!p.isValid())
return;
@@ -247,5 +246,10 @@ void ScrollbarThemeQt::paintScrollCorner(ScrollView* scrollView, GraphicsContext
#endif
}
+QStyle* ScrollbarThemeQt::style() const
+{
+ return QApplication::style();
+}
+
}
diff --git a/src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.h b/src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.h
index 6ca44ea..cf4882d 100644
--- a/src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.h
+++ b/src/3rdparty/webkit/WebCore/platform/qt/ScrollbarThemeQt.h
@@ -28,6 +28,12 @@
#include "ScrollbarTheme.h"
+#include <QtCore/qglobal.h>
+
+QT_BEGIN_NAMESPACE
+class QStyle;
+QT_END_NAMESPACE
+
namespace WebCore {
class ScrollbarThemeQt : public ScrollbarTheme {
@@ -49,6 +55,8 @@ public:
virtual int trackLength(Scrollbar*);
virtual int scrollbarThickness(ScrollbarControlSize = RegularScrollbar);
+
+ QStyle* style() const;
};
}
diff --git a/src/corelib/codecs/qtextcodec.cpp b/src/corelib/codecs/qtextcodec.cpp
index 698ca9e..b63a82e 100644
--- a/src/corelib/codecs/qtextcodec.cpp
+++ b/src/corelib/codecs/qtextcodec.cpp
@@ -958,8 +958,8 @@ QTextCodec *QTextCodec::codecForName(const QByteArray &name)
if (nameMatch(cursor->name(), name))
return cursor;
QList<QByteArray> aliases = cursor->aliases();
- for (int i = 0; i < aliases.size(); ++i)
- if (nameMatch(aliases.at(i), name))
+ for (int y = 0; y < aliases.size(); ++y)
+ if (nameMatch(aliases.at(y), name))
return cursor;
}
diff --git a/src/gui/widgets/qabstractslider.cpp b/src/gui/widgets/qabstractslider.cpp
index defebb9..f0ae5a8 100644
--- a/src/gui/widgets/qabstractslider.cpp
+++ b/src/gui/widgets/qabstractslider.cpp
@@ -688,51 +688,64 @@ void QAbstractSlider::sliderChange(SliderChange)
update();
}
-
-/*!
- \reimp
-*/
-#ifndef QT_NO_WHEELEVENT
-void QAbstractSlider::wheelEvent(QWheelEvent * e)
+bool QAbstractSliderPrivate::scrollByDelta(Qt::Orientation orientation, Qt::KeyboardModifiers modifiers, int delta)
{
- Q_D(QAbstractSlider);
- e->ignore();
-
+ Q_Q(QAbstractSlider);
int stepsToScroll = 0;
- qreal offset = qreal(e->delta()) / 120;
+ // in Qt scrolling to the right gives negative values.
+ if (orientation == Qt::Horizontal)
+ delta = -delta;
+ qreal offset = qreal(delta) / 120;
- if ((e->modifiers() & Qt::ControlModifier) || (e->modifiers() & Qt::ShiftModifier)) {
+ if ((modifiers & Qt::ControlModifier) || (modifiers & Qt::ShiftModifier)) {
// Scroll one page regardless of delta:
- stepsToScroll = qBound(-d->pageStep, int(offset * d->pageStep), d->pageStep);
- d->offset_accumulated = 0;
+ stepsToScroll = qBound(-pageStep, int(offset * pageStep), pageStep);
+ offset_accumulated = 0;
} else {
// Calculate how many lines to scroll. Depending on what delta is (and
// offset), we might end up with a fraction (e.g. scroll 1.3 lines). We can
// only scroll whole lines, so we keep the reminder until next event.
- qreal stepsToScrollF = offset * QApplication::wheelScrollLines() * d->effectiveSingleStep();
+ qreal stepsToScrollF = offset * QApplication::wheelScrollLines() * effectiveSingleStep();
// Check if wheel changed direction since last event:
- if (d->offset_accumulated != 0 && (offset / d->offset_accumulated) < 0)
- d->offset_accumulated = 0;
+ if (offset_accumulated != 0 && (offset / offset_accumulated) < 0)
+ offset_accumulated = 0;
- d->offset_accumulated += stepsToScrollF;
- stepsToScroll = qBound(-d->pageStep, int(d->offset_accumulated), d->pageStep);
- d->offset_accumulated -= int(d->offset_accumulated);
+ offset_accumulated += stepsToScrollF;
+ stepsToScroll = qBound(-pageStep, int(offset_accumulated), pageStep);
+ offset_accumulated -= int(offset_accumulated);
if (stepsToScroll == 0)
- return;
+ return false;
}
- if (d->invertedControls)
+ if (invertedControls)
stepsToScroll = -stepsToScroll;
- int prevValue = d->value;
- d->position = d->overflowSafeAdd(stepsToScroll); // value will be updated by triggerAction()
- triggerAction(SliderMove);
+ int prevValue = value;
+ position = overflowSafeAdd(stepsToScroll); // value will be updated by triggerAction()
+ q->triggerAction(QAbstractSlider::SliderMove);
- if (prevValue == d->value)
- d->offset_accumulated = 0;
- else
+ if (prevValue == value) {
+ offset_accumulated = 0;
+ return false;
+ }
+ return true;
+}
+
+/*!
+ \reimp
+*/
+#ifndef QT_NO_WHEELEVENT
+void QAbstractSlider::wheelEvent(QWheelEvent * e)
+{
+ Q_D(QAbstractSlider);
+ e->ignore();
+ if (e->orientation() != d->orientation && !rect().contains(e->pos()))
+ return;
+ int delta = e->delta();
+ if (d->scrollByDelta(e->orientation(), e->modifiers(), delta))
e->accept();
}
+
#endif
#ifdef QT_KEYPAD_NAVIGATION
/*!
diff --git a/src/gui/widgets/qabstractslider_p.h b/src/gui/widgets/qabstractslider_p.h
index 6cde468..6e6ff6e 100644
--- a/src/gui/widgets/qabstractslider_p.h
+++ b/src/gui/widgets/qabstractslider_p.h
@@ -138,6 +138,7 @@ public:
}
q->triggerAction(repeatAction);
}
+ bool scrollByDelta(Qt::Orientation orientation, Qt::KeyboardModifiers modifiers, int delta);
};
QT_END_NAMESPACE
diff --git a/src/gui/widgets/qdialogbuttonbox.cpp b/src/gui/widgets/qdialogbuttonbox.cpp
index 48d7022..6a0e363 100644
--- a/src/gui/widgets/qdialogbuttonbox.cpp
+++ b/src/gui/widgets/qdialogbuttonbox.cpp
@@ -1017,6 +1017,8 @@ void QDialogButtonBox::removeButton(QAbstractButton *button)
If the button has already been added, it is removed and added again with the
new role.
+ \note The button box takes ownership of the button.
+
\sa removeButton(), clear()
*/
void QDialogButtonBox::addButton(QAbstractButton *button, ButtonRole role)
diff --git a/src/gui/widgets/qscrollbar.cpp b/src/gui/widgets/qscrollbar.cpp
index 73ce122..3eed3a9 100644
--- a/src/gui/widgets/qscrollbar.cpp
+++ b/src/gui/widgets/qscrollbar.cpp
@@ -521,6 +521,22 @@ bool QScrollBar::event(QEvent *event)
if (const QHoverEvent *he = static_cast<const QHoverEvent *>(event))
d_func()->updateHoverControl(he->pos());
break;
+ case QEvent::Wheel: {
+ // override wheel event without adding virtual function override
+ QWheelEvent *ev = static_cast<QWheelEvent *>(event);
+ int delta = ev->delta();
+ // scrollbar is a special case - in vertical mode it reaches minimum
+ // value in the upper position, however QSlider's minimum value is on
+ // the bottom. So we need to invert a value, but since the scrollbar is
+ // inverted by default, we need to inverse the delta value for the
+ // horizontal orientation.
+ if (ev->orientation() == Qt::Horizontal)
+ delta = -delta;
+ Q_D(QScrollBar);
+ if (d->scrollByDelta(ev->orientation(), ev->modifiers(), delta))
+ event->accept();
+ return true;
+ }
default:
break;
}
diff --git a/src/xml/dom/qdom.cpp b/src/xml/dom/qdom.cpp
index cae959b..8d9ae4f 100644
--- a/src/xml/dom/qdom.cpp
+++ b/src/xml/dom/qdom.cpp
@@ -2973,7 +2973,7 @@ QDomElement QDomNode::lastChildElement(const QString &tagName) const
}
/*!
- Returns the next sibilng element with tag name \a tagName if \a tagName
+ Returns the next sibling element with tag name \a tagName if \a tagName
is non-empty; otherwise returns any next sibling element.
Returns a null element if no such sibling exists.
generated by cgit v0.12 at 2024-12-03 06:23:50 (GMT)