IntRect PopupContainer::layoutAndCalculateWidgetRect(int targetControlHeight, const IntSize& transformOffset, const IntPoint& popupInitialCoordinate)
{
// Reset the max width and height to their default values, they will be
// recomputed below if necessary.
m_listBox->setMaxHeight(PopupListBox::defaultMaxHeight);
m_listBox->setMaxWidth(std::numeric_limits<int>::max());
// Lay everything out to figure out our preferred size, then tell the view's
// WidgetClient about it. It should assign us a client.
m_listBox->layout();
fitToListBox();
bool isRTL = this->isRTL();
// Compute the starting x-axis for a normal RTL or right-aligned LTR
// dropdown. For those, the right edge of dropdown box should be aligned
// with the right edge of <select>/<input> element box, and the dropdown box
// should be expanded to the left if more space is needed.
// m_originalFrameRect.width() is the width of the target <select>/<input>
// element.
int rtlOffset = m_controlPosition.p2().x() - m_controlPosition.p1().x() - (m_listBox->width() + borderSize * 2);
int rightOffset = isRTL ? rtlOffset : 0;
// Compute the y-axis offset between the bottom left and bottom right
// points. If the <select>/<input> is transformed, they are not the same.
int verticalOffset = - m_controlPosition.p4().y() + m_controlPosition.p3().y();
int verticalForRTLOffset = isRTL ? verticalOffset : 0;
// Assume m_listBox size is already calculated.
IntSize targetSize(m_listBox->width() + borderSize * 2, m_listBox->height() + borderSize * 2);
IntRect widgetRectInScreen;
// If the popup would extend past the bottom of the screen, open upwards
// instead.
FloatRect screen = screenAvailableRect(m_frameView.get());
// Use popupInitialCoordinate.x() + rightOffset because RTL position
// needs to be considered.
float pageScaleFactor = m_frameView->frame().page()->pageScaleFactor();
int popupX = round((popupInitialCoordinate.x() + rightOffset) * pageScaleFactor);
int popupY = round((popupInitialCoordinate.y() + verticalForRTLOffset) * pageScaleFactor);
widgetRectInScreen = chromeClient().rootViewToScreen(IntRect(popupX, popupY, targetSize.width(), targetSize.height()));
// If we have multiple screens and the browser rect is in one screen, we
// have to clip the window width to the screen width.
// When clipping, we also need to set a maximum width for the list box.
FloatRect windowRect = chromeClient().windowRect();
bool needToResizeView = false;
widgetRectInScreen = layoutAndCalculateWidgetRectInternal(widgetRectInScreen, targetControlHeight, windowRect, screen, isRTL, rtlOffset, verticalOffset, transformOffset, m_listBox.get(), needToResizeView);
if (needToResizeView)
fitToListBox();
return widgetRectInScreen;
}
IntRect PopupContainer::layoutAndCalculateWidgetRect(int targetControlHeight, const IntPoint& popupInitialCoordinate)
{
// Reset the max width and height to their default values, they will be recomputed below
// if necessary.
m_listBox->setMaxHeight(kMaxHeight);
m_listBox->setMaxWidth(std::numeric_limits<int>::max());
// Lay everything out to figure out our preferred size, then tell the view's
// WidgetClient about it. It should assign us a client.
int rtlOffset = layoutAndGetRTLOffset();
bool isRTL = this->isRTL();
int rightOffset = isRTL ? rtlOffset : 0;
// Assume m_listBox size is already calculated.
IntSize targetSize(m_listBox->width() + kBorderSize * 2,
m_listBox->height() + kBorderSize * 2);
IntRect widgetRectInScreen;
ChromeClientChromium* chromeClient = chromeClientChromium();
if (chromeClient) {
// If the popup would extend past the bottom of the screen, open upwards
// instead.
FloatRect screen = screenAvailableRect(m_frameView.get());
// Use popupInitialCoordinate.x() + rightOffset because RTL position
// needs to be considered.
widgetRectInScreen = chromeClient->rootViewToScreen(IntRect(popupInitialCoordinate.x() + rightOffset, popupInitialCoordinate.y(), targetSize.width(), targetSize.height()));
// If we have multiple screens and the browser rect is in one screen, we have
// to clip the window width to the screen width.
// When clipping, we also need to set a maximum width for the list box.
FloatRect windowRect = chromeClient->windowRect();
bool needToResizeView = false;
widgetRectInScreen = layoutAndCalculateWidgetRectInternal(widgetRectInScreen, targetControlHeight, windowRect, screen, isRTL, rtlOffset, m_listBox.get(), needToResizeView);
if (needToResizeView)
fitToListBox();
}
return widgetRectInScreen;
}
