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0.10.4: Same chat msg links fixed. Crash fix attempt in ScrollArea.

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If the message link is opened in the same chat the ShowWay::Forward
should be ignored.

There was a possible crash in ~ScrollArea() when one of the bars
was already destroyed and the second called ScrollArea::leaveEvent.
Now both bars are ChildWidget<>s and will be destroyed in ~QWidget().
This commit is contained in:
John Preston
2016-09-03 12:35:12 -04:00
parent 3d3fc33253
commit ab18fc6478
7 changed files with 73 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Telegram/SourceFiles/ui/scrollarea.cpp
+40 -38
View File
@@ -320,17 +320,18 @@ void SplittedWidgetOther::paintEvent(QPaintEvent *e) {
}
}
ScrollArea::ScrollArea(QWidget *parent, const style::flatScroll &st, bool handleTouch) : QScrollArea(parent),
_disabled(false), _st(st),
hor(this, false, &_st), vert(this, true, &_st), topSh(this, &_st), bottomSh(this, &_st),
_touchEnabled(handleTouch), _touchScroll(false), _touchPress(false), _touchRightButton(false),
_touchScrollState(TouchScrollManual), _touchPrevPosValid(false), _touchWaitingAcceleration(false),
_touchSpeedTime(0), _touchAccelerationTime(0), _touchTime(0), _widgetAcceptsTouch(false), _other(0) {
ScrollArea::ScrollArea(QWidget *parent, const style::flatScroll &st, bool handleTouch) : QScrollArea(parent)
, _st(st)
, _horizontalBar(this, false, &_st)
, _verticalBar(this, true, &_st)
, _topShadow(this, &_st)
, _bottomShadow(this, &_st)
, _touchEnabled(handleTouch) {
setLayoutDirection(cLangDir());
connect(&vert, SIGNAL(topShadowVisibility(bool)), &topSh, SLOT(changeVisibility(bool)));
connect(&vert, SIGNAL(bottomShadowVisibility(bool)), &bottomSh, SLOT(changeVisibility(bool)));
vert.updateBar(true);
connect(_verticalBar, SIGNAL(topShadowVisibility(bool)), _topShadow, SLOT(changeVisibility(bool)));
connect(_verticalBar, SIGNAL(bottomShadowVisibility(bool)), _bottomShadow, SLOT(changeVisibility(bool)));
_verticalBar->updateBar(true);
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
@@ -338,8 +339,8 @@ _touchSpeedTime(0), _touchAccelerationTime(0), _touchTime(0), _widgetAcceptsTouc
setFrameStyle(QFrame::NoFrame | QFrame::Plain);
viewport()->setAutoFillBackground(false);
_horValue = horizontalScrollBar()->value();
_vertValue = verticalScrollBar()->value();
_horizontalValue = horizontalScrollBar()->value();
_verticalValue = verticalScrollBar()->value();
if (_touchEnabled) {
viewport()->setAttribute(Qt::WA_AcceptTouchEvents);
@@ -360,25 +361,26 @@ void ScrollArea::onScrolled() {
myEnsureResized(widget());
bool em = false;
int32 horValue = horizontalScrollBar()->value(), vertValue = verticalScrollBar()->value();
if (_horValue != horValue) {
int horizontalValue = horizontalScrollBar()->value();
int verticalValue = verticalScrollBar()->value();
if (_horizontalValue != horizontalValue) {
if (_disabled) {
horizontalScrollBar()->setValue(_horValue);
horizontalScrollBar()->setValue(_horizontalValue);
} else {
_horValue = horValue;
_horizontalValue = horizontalValue;
if (_st.hiding) {
hor.hideTimeout(_st.hiding);
_horizontalBar->hideTimeout(_st.hiding);
}
em = true;
}
}
if (_vertValue != vertValue) {
if (_verticalValue != verticalValue) {
if (_disabled) {
verticalScrollBar()->setValue(_vertValue);
verticalScrollBar()->setValue(_verticalValue);
} else {
_vertValue = vertValue;
_verticalValue = verticalValue;
if (_st.hiding) {
vert.hideTimeout(_st.hiding);
_verticalBar->hideTimeout(_st.hiding);
}
em = true;
}
@@ -410,11 +412,11 @@ int ScrollArea::scrollTopMax() const {
}
int ScrollArea::scrollLeft() const {
return _horValue;
return _horizontalValue;
}
int ScrollArea::scrollTop() const {
return _vertValue;
return _verticalValue;
}
void ScrollArea::onTouchTimer() {
@@ -610,8 +612,8 @@ void ScrollArea::touchScrollUpdated(const QPoint &screenPos) {
void ScrollArea::disableScroll(bool dis) {
_disabled = dis;
if (_disabled && _st.hiding) {
hor.hideTimeout(0);
vert.hideTimeout(0);
_horizontalBar->hideTimeout(0);
_verticalBar->hideTimeout(0);
}
}
@@ -632,10 +634,10 @@ bool ScrollArea::touchScroll(const QPoint &delta) {
void ScrollArea::resizeEvent(QResizeEvent *e) {
QScrollArea::resizeEvent(e);
hor.recountSize();
vert.recountSize();
topSh.setGeometry(QRect(0, 0, width(), qAbs(_st.topsh)));
bottomSh.setGeometry(QRect(0, height() - qAbs(_st.bottomsh), width(), qAbs(_st.bottomsh)));
_horizontalBar->recountSize();
_verticalBar->recountSize();
_topShadow->setGeometry(QRect(0, 0, width(), qAbs(_st.topsh)));
_bottomShadow->setGeometry(QRect(0, height() - qAbs(_st.bottomsh), width(), qAbs(_st.bottomsh)));
if (SplittedWidget *w = qobject_cast<SplittedWidget*>(widget())) {
w->resize(width() - w->otherWidth(), w->height());
if (!rtl()) {
@@ -663,16 +665,16 @@ void ScrollArea::keyPressEvent(QKeyEvent *e) {
void ScrollArea::enterEventHook(QEvent *e) {
if (_disabled) return;
if (_st.hiding) {
hor.hideTimeout(_st.hiding);
vert.hideTimeout(_st.hiding);
_horizontalBar->hideTimeout(_st.hiding);
_verticalBar->hideTimeout(_st.hiding);
}
return QScrollArea::enterEvent(e);
}
void ScrollArea::leaveEventHook(QEvent *e) {
if (_st.hiding) {
hor.hideTimeout(0);
vert.hideTimeout(0);
_horizontalBar->hideTimeout(0);
_verticalBar->hideTimeout(0);
}
return QScrollArea::leaveEvent(e);
}
@@ -716,10 +718,10 @@ void ScrollArea::setWidget(QWidget *w) {
} else if (!_other && splitted) {
_other = new SplittedWidgetOther(this);
_other->setAttribute(Qt::WA_OpaquePaintEvent);
_other->resize(vert.width(), _other->height());
_other->resize(_verticalBar->width(), _other->height());
connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(onVerticalScroll()));
hor.raise();
vert.raise();
_horizontalBar->raise();
_verticalBar->raise();
}
if (_ownsWidget) {
_ownsWidget = false;
@@ -734,7 +736,7 @@ void ScrollArea::setWidget(QWidget *w) {
w->setAttribute(Qt::WA_AcceptTouchEvents);
}
if (splitted) {
splitted->setOtherWidth(vert.width());
splitted->setOtherWidth(_verticalBar->width());
w->setGeometry(rtl() ? splitted->otherWidth() : 0, 0, width() - splitted->otherWidth(), w->height());
connect(splitted, SIGNAL(resizeOther()), this, SLOT(onResizeOther()));
connect(splitted, SIGNAL(updateOther(const QRect&)), this, SLOT(onUpdateOther(const QRect&)));
@@ -783,8 +785,8 @@ void ScrollArea::updateColors(const style::color &bar, const style::color &bg, c
_st.bgColor = bg;
_st.barOverColor = barOver;
_st.bgOverColor = bgOver;
hor.update();
vert.update();
_horizontalBar->update();
_verticalBar->update();
}
bool ScrollArea::focusNextPrevChild(bool next) {