void ScrollView::scrollRectIntoViewRecursively(const IntRect& r)
{
#if PLATFORM(ANDROID)
if (platformProhibitsScrolling())
return;
#endif
// FIXME: This method is not transform-aware. It should just be moved to FrameView so that an accurate
// position for the child view can be determined.
IntRect rect = r;
ScrollView* view = this;
while (view) {
if (view->prohibitsScrolling()) // Allow the views to scroll into view recursively until we hit one that prohibits scrolling.
return;
view->setScrollPosition(rect.location());
rect.move(view->x() - view->scrollOffset().width(), view->y() - view->scrollOffset().height());
if (view->parent())
rect.intersect(view->frameRect());
view = view->parent();
}
// We may be embedded inside some containing platform scroll view that we don't manage. This is the case
// in Mail.app on OS X, for example, where the WebKit view for message bodies is inside a Cocoa NSScrollView
// that contains both it and message headers. Let the HostWindow know about this scroll so that it can pass the message
// on up the view chain.
// This rect is not clamped, since Mail actually relies on receiving an unclamped rect with negative coordinates in order to
// expose the headers.
if (hostWindow())
hostWindow()->scrollRectIntoView(rect, this);
}
void ScrollView::scrollRectIntoViewRecursively(const IntRect& r)
{
IntPoint p(max(0, r.x()), max(0, r.y()));
ScrollView* view = this;
while (view) {
view->setContentsPos(p.x(), p.y());
p.move(view->x() - view->scrollOffset().width(), view->y() - view->scrollOffset().height());
view = static_cast<ScrollView*>(view->parent());
}
}
static void adjustmentChanged(GtkAdjustment* adjustment, gpointer _that)
{
ScrollView* that = reinterpret_cast<ScrollView*>(_that);
// Figure out if we really moved.
IntSize newOffset = that->scrollOffset();
if (adjustment == that->m_horizontalAdjustment)
newOffset.setWidth(static_cast<int>(gtk_adjustment_get_value(adjustment)));
else if (adjustment == that->m_verticalAdjustment)
newOffset.setHeight(static_cast<int>(gtk_adjustment_get_value(adjustment)));
IntSize scrollDelta = newOffset - that->scrollOffset();
if (scrollDelta == IntSize())
return;
that->setScrollOffset(newOffset);
if (that->scrollbarsSuppressed())
return;
that->scrollContents(scrollDelta);
}
void PluginView::updatePluginWidget()
{
if (!parent() || !m_private)
return;
ASSERT(parent()->isFrameView());
FrameView* frameView = toFrameView(parent());
IntRect oldWindowRect = m_windowRect;
IntRect oldClipRect = m_clipRect;
m_windowRect = IntRect(frameView->contentsToWindow(frameRect().location()), frameRect().size());
ScrollView* theRoot = root();
if (!theRoot)
return; // ASSERT(parent()->isFrameView()) should prevent this but check just in case
// Map rect to content coordinate space of main frame.
m_windowRect.move(theRoot->scrollOffset());
m_clipRect = calculateClipRect();
// Notify the plugin if it may or may not be on/offscreen.
handleScrollEvent();
bool zoomFactorChanged = ((NPSetWindowCallbackStruct*)m_npWindow.ws_info)->zoomFactor
!= frameView->hostWindow()->platformPageClient()->currentZoomFactor();
if (!zoomFactorChanged && m_windowRect == oldWindowRect && m_clipRect == oldClipRect)
return;
// Do not call setNPWindowIfNeeded immediately, will be called on paint().
m_private->m_hasPendingGeometryChange = true;
// (i) In order to move/resize the plugin window at the same time as the
// rest of frame during e.g. scrolling, we set the window geometry
// in the paint() function, but as paint() isn't called when the
// plugin window is outside the frame which can be caused by a
// scroll, we need to move/resize immediately.
// (ii) If we are running layout tests from DRT, paint() won't ever get called
// so we need to call setNPWindowIfNeeded() if window geometry has changed.
if (m_clipRect.isEmpty() || (platformPluginWidget() && (m_windowRect != oldWindowRect || m_clipRect != oldClipRect || zoomFactorChanged)))
setNPWindowIfNeeded();
// Make sure we get repainted afterwards. This is necessary for downward
// scrolling to move the plugin widget properly.
invalidate();
}
void PluginView::updatePluginWidget()
{
FrameView* frameView = static_cast<FrameView*>(parent());
PLUGIN_LOG("--%p UpdatePluginWidget frame=[%p] \n", instance(), frameView);
if (frameView) {
m_windowRect = frameView->contentsToWindow(frameRect());
IntRect oldPageRect = m_pageRect;
// only the top ScrollView can have the offset
m_pageRect = m_windowRect;
ScrollView* top = parent();
while (top->parent())
top = top->parent();
m_pageRect.move(top->scrollOffset());
if (m_pageRect != oldPageRect)
setNPWindowIfNeeded();
}
}
