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Unified Diff: Source/core/rendering/RenderListBox.cpp

Issue 347773002: Implement select listbox using shadow DOM (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Fixed Created 6 years, 6 months ago
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Index: Source/core/rendering/RenderListBox.cpp
diff --git a/Source/core/rendering/RenderListBox.cpp b/Source/core/rendering/RenderListBox.cpp
index edc2f5498db407bef4c100cf5cb65d13028c6da7..2785915c286b6c304efa9935aa3ab9e283660a2f 100644
--- a/Source/core/rendering/RenderListBox.cpp
+++ b/Source/core/rendering/RenderListBox.cpp
@@ -62,10 +62,6 @@ namespace WebCore {
using namespace HTMLNames;
-const int rowSpacing = 1;
-
-const int optionsSpacingHorizontal = 2;
-
// The minSize constant was originally defined to render scrollbars correctly.
// This might vary for different platforms.
const int minSize = 4;
@@ -73,40 +69,18 @@ const int minSize = 4;
// Default size when the multiple attribute is present but size attribute is absent.
const int defaultSize = 4;
-// FIXME: This hardcoded baselineAdjustment is what we used to do for the old
-// widget, but I'm not sure this is right for the new control.
-const int baselineAdjustment = 7;
+const int defaultPaddingBottom = 1;
RenderListBox::RenderListBox(Element* element)
: RenderBlockFlow(element)
- , m_optionsChanged(true)
- , m_scrollToRevealSelectionAfterLayout(true)
- , m_inAutoscroll(false)
- , m_optionsWidth(0)
- , m_indexOffset(0)
- , m_listItemCount(0)
{
ASSERT(element);
ASSERT(element->isHTMLElement());
ASSERT(isHTMLSelectElement(element));
-
- if (FrameView* frameView = frame()->view())
- frameView->addScrollableArea(this);
}
RenderListBox::~RenderListBox()
{
- setHasVerticalScrollbar(false);
-
- if (FrameView* frameView = frame()->view())
- frameView->removeScrollableArea(this);
-}
-
-// FIXME: Instead of this hack we should add a ShadowRoot to <select> with no insertion point
-// to prevent children from rendering.
-bool RenderListBox::isChildAllowed(RenderObject* object, RenderStyle*) const
-{
- return object->isAnonymous() && !object->isRenderFullScreen();
}
inline HTMLSelectElement* RenderListBox::selectElement() const
@@ -114,180 +88,38 @@ inline HTMLSelectElement* RenderListBox::selectElement() const
return toHTMLSelectElement(node());
}
-void RenderListBox::updateFromElement()
-{
- FontCachePurgePreventer fontCachePurgePreventer;
- if (m_optionsChanged) {
- const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = selectElement()->listItems();
- int size = static_cast<int>(listItems.size());
-
- float width = 0;
- m_listItemCount = 0;
- for (int i = 0; i < size; ++i) {
- const HTMLElement& element = *listItems[i];
-
- String text;
- Font itemFont = style()->font();
- if (isHTMLOptionElement(element)) {
- const HTMLOptionElement& optionElement = toHTMLOptionElement(element);
- if (optionElement.isDisplayNone())
- continue;
- text = optionElement.textIndentedToRespectGroupLabel();
- ++m_listItemCount;
- } else if (isHTMLOptGroupElement(element)) {
- if (toHTMLOptGroupElement(element).isDisplayNone())
- continue;
- text = toHTMLOptGroupElement(element).groupLabelText();
- FontDescription d = itemFont.fontDescription();
- d.setWeight(d.bolderWeight());
- itemFont = Font(d);
- itemFont.update(document().styleEngine()->fontSelector());
- ++m_listItemCount;
- } else if (isHTMLHRElement(element)) {
- // HTMLSelect adds it to its list, so we will also add it to match the count.
- ++m_listItemCount;
- continue;
- }
-
- if (!text.isEmpty()) {
- applyTextTransform(style(), text, ' ');
-
- bool hasStrongDirectionality;
- TextDirection direction = determineDirectionality(text, hasStrongDirectionality);
- TextRun textRun = constructTextRun(this, itemFont, text, style(), TextRun::AllowTrailingExpansion);
- if (hasStrongDirectionality)
- textRun.setDirection(direction);
- textRun.disableRoundingHacks();
- float textWidth = itemFont.width(textRun);
- width = std::max(width, textWidth);
- }
- }
- m_optionsWidth = static_cast<int>(ceilf(width));
- m_optionsChanged = false;
-
- setHasVerticalScrollbar(true);
-
- setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation();
- }
-}
-
-void RenderListBox::selectionChanged()
-{
- paintInvalidationForWholeRenderer();
- if (!m_inAutoscroll) {
- if (m_optionsChanged || needsLayout())
- m_scrollToRevealSelectionAfterLayout = true;
- else
- scrollToRevealSelection();
- }
-
- if (AXObjectCache* cache = document().existingAXObjectCache())
- cache->selectedChildrenChanged(this);
-}
-
-void RenderListBox::layout()
-{
- RenderBlockFlow::layout();
-
- if (m_vBar) {
- bool enabled = numVisibleItems() < numItems();
- m_vBar->setEnabled(enabled);
- m_vBar->setProportion(numVisibleItems(), numItems());
- if (!enabled) {
- scrollToOffsetWithoutAnimation(VerticalScrollbar, 0);
- m_indexOffset = 0;
- }
- }
-
- if (m_scrollToRevealSelectionAfterLayout) {
- ForceHorriblySlowRectMapping slowRectMapping(*this);
- scrollToRevealSelection();
- }
-}
-
-void RenderListBox::invalidateTreeAfterLayout(const RenderLayerModelObject& invalidationContainer)
-{
- repaintScrollbarIfNeeded();
- RenderBox::invalidateTreeAfterLayout(invalidationContainer);
-}
-
-void RenderListBox::scrollToRevealSelection()
-{
- HTMLSelectElement* select = selectElement();
-
- m_scrollToRevealSelectionAfterLayout = false;
-
- int firstIndex = listIndexToRenderListBoxIndex(select->activeSelectionStartListIndex());
- int lastIndex = listIndexToRenderListBoxIndex(select->activeSelectionEndListIndex());
- if (firstIndex >= 0 && !listIndexIsVisible(lastIndex))
- scrollToRevealElementAtListIndexInternal(firstIndex);
-}
-
-void RenderListBox::computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const
-{
- maxLogicalWidth = m_optionsWidth + 2 * optionsSpacingHorizontal + verticalScrollbarWidth();
- if (!style()->width().isPercent())
- minLogicalWidth = maxLogicalWidth;
-}
-
-void RenderListBox::computePreferredLogicalWidths()
-{
- ASSERT(!m_optionsChanged);
-
- m_minPreferredLogicalWidth = 0;
- m_maxPreferredLogicalWidth = 0;
- RenderStyle* styleToUse = style();
-
- if (styleToUse->width().isFixed() && styleToUse->width().value() > 0)
- m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = adjustContentBoxLogicalWidthForBoxSizing(styleToUse->width().value());
- else
- computeIntrinsicLogicalWidths(m_minPreferredLogicalWidth, m_maxPreferredLogicalWidth);
-
- if (styleToUse->minWidth().isFixed() && styleToUse->minWidth().value() > 0) {
- m_maxPreferredLogicalWidth = std::max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->minWidth().value()));
- m_minPreferredLogicalWidth = std::max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->minWidth().value()));
- }
-
- if (styleToUse->maxWidth().isFixed()) {
- m_maxPreferredLogicalWidth = std::min(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->maxWidth().value()));
- m_minPreferredLogicalWidth = std::min(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->maxWidth().value()));
- }
-
- LayoutUnit toAdd = borderAndPaddingWidth();
- m_minPreferredLogicalWidth += toAdd;
- m_maxPreferredLogicalWidth += toAdd;
-
- clearPreferredLogicalWidthsDirty();
-}
-
int RenderListBox::size() const
{
int specifiedSize = selectElement()->size();
if (specifiedSize > 1)
- return std::max(minSize, specifiedSize);
+ return max(minSize, specifiedSize);
return defaultSize;
}
-int RenderListBox::numVisibleItems() const
+LayoutUnit RenderListBox::defaultItemHeight() const
{
- // Only count fully visible rows. But don't return 0 even if only part of a row shows.
- return std::max<int>(1, (contentHeight() + rowSpacing) / itemHeight());
+ return style()->fontMetrics().height() + defaultPaddingBottom;
}
-int RenderListBox::numItems() const
-{
- return m_listItemCount;
-}
-
-LayoutUnit RenderListBox::listHeight() const
+LayoutUnit RenderListBox::itemHeight() const
{
- return itemHeight() * numItems() - rowSpacing;
+ HTMLSelectElement* select = selectElement();
+ if (!select)
+ return 0;
+ RenderObject* baseItemRenderer = firstChild();
+ if (!baseItemRenderer)
+ return defaultItemHeight();
+ if (baseItemRenderer->node() && isHTMLOptGroupElement(baseItemRenderer->node()))
+ baseItemRenderer = baseItemRenderer->slowFirstChild();
+ if (!baseItemRenderer || !baseItemRenderer->isBox())
+ return defaultItemHeight();
+ return toRenderBox(baseItemRenderer)->height();
}
void RenderListBox::computeLogicalHeight(LayoutUnit, LayoutUnit logicalTop, LogicalExtentComputedValues& computedValues) const
{
- LayoutUnit height = itemHeight() * size() - rowSpacing;
+ LayoutUnit height = itemHeight() * size();
// FIXME: The item height should have been added before updateLogicalHeight was called to avoid this hack.
updateIntrinsicContentLogicalHeight(height);
@@ -296,732 +128,12 @@ void RenderListBox::computeLogicalHeight(LayoutUnit, LayoutUnit logicalTop, Logi
RenderBox::computeLogicalHeight(height, logicalTop, computedValues);
}
-int RenderListBox::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode lineDirection, LinePositionMode linePositionMode) const
-{
- return RenderBox::baselinePosition(baselineType, firstLine, lineDirection, linePositionMode) - baselineAdjustment;
-}
-
-LayoutRect RenderListBox::itemBoundingBoxRectInternal(const LayoutPoint& additionalOffset, int index) const
-{
- // For RTL, items start after the left-side vertical scrollbar.
- int scrollbarOffset = style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft() ? verticalScrollbarWidth() : 0;
- return LayoutRect(additionalOffset.x() + borderLeft() + paddingLeft() + scrollbarOffset,
- additionalOffset.y() + borderTop() + paddingTop() + itemHeight() * (index - m_indexOffset),
- contentWidth(), itemHeight());
-}
-
-void RenderListBox::paintObject(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
-{
- if (style()->visibility() != VISIBLE)
- return;
-
- int listItemsSize = numItems();
-
- if (paintInfo.phase == PaintPhaseForeground) {
- int index = m_indexOffset;
- while (index < listItemsSize && index <= m_indexOffset + numVisibleItems()) {
- paintItemForeground(paintInfo, paintOffset, index);
- index++;
- }
- }
-
- // Paint the children.
- RenderBlockFlow::paintObject(paintInfo, paintOffset);
-
- switch (paintInfo.phase) {
- // Depending on whether we have overlay scrollbars they
- // get rendered in the foreground or background phases
- case PaintPhaseForeground:
- if (m_vBar->isOverlayScrollbar())
- paintScrollbar(paintInfo, paintOffset);
- break;
- case PaintPhaseBlockBackground:
- if (!m_vBar->isOverlayScrollbar())
- paintScrollbar(paintInfo, paintOffset);
- break;
- case PaintPhaseChildBlockBackground:
- case PaintPhaseChildBlockBackgrounds: {
- int index = m_indexOffset;
- while (index < listItemsSize && index <= m_indexOffset + numVisibleItems()) {
- paintItemBackground(paintInfo, paintOffset, index);
- index++;
- }
- break;
- }
- default:
- break;
- }
-}
-
-void RenderListBox::addFocusRingRects(Vector<IntRect>& rects, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer)
-{
- if (!isSpatialNavigationEnabled(frame()))
- return RenderBlockFlow::addFocusRingRects(rects, additionalOffset, paintContainer);
-
- HTMLSelectElement* select = selectElement();
-
- // Focus the last selected item.
- int selectedItem = select->activeSelectionEndListIndex();
- if (selectedItem >= 0) {
- rects.append(pixelSnappedIntRect(itemBoundingBoxRectInternal(additionalOffset, selectedItem)));
- return;
- }
-
- // No selected items, find the first non-disabled item.
- int size = numItems();
- const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = select->listItems();
- for (int i = 0; i < size; ++i) {
- HTMLElement* element = listItems[renderListBoxIndexToListIndex(i)];
- if (isHTMLOptionElement(*element) && !element->isDisabledFormControl()) {
- rects.append(pixelSnappedIntRect(itemBoundingBoxRectInternal(additionalOffset, i)));
- return;
- }
- }
-}
-
-int RenderListBox::scrollbarLeft() const
-{
- int scrollbarLeft = 0;
- if (style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
- scrollbarLeft = borderLeft();
- else
- scrollbarLeft = width() - borderRight() - (m_vBar ? m_vBar->width() : 0);
- return scrollbarLeft;
-}
-
-void RenderListBox::paintScrollbar(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
-{
- if (m_vBar) {
- IntRect scrollRect = pixelSnappedIntRect(paintOffset.x() + scrollbarLeft(),
- paintOffset.y() + borderTop(),
- m_vBar->width(),
- height() - (borderTop() + borderBottom()));
- m_vBar->setFrameRect(scrollRect);
- m_vBar->paint(paintInfo.context, paintInfo.rect);
- }
-}
-
-static LayoutSize itemOffsetForAlignment(TextRun textRun, RenderStyle* itemStyle, Font itemFont, LayoutRect itemBoudingBox)
-{
- ETextAlign actualAlignment = itemStyle->textAlign();
- // FIXME: Firefox doesn't respect JUSTIFY. Should we?
- // FIXME: Handle TAEND here
- if (actualAlignment == TASTART || actualAlignment == JUSTIFY)
- actualAlignment = itemStyle->isLeftToRightDirection() ? LEFT : RIGHT;
-
- LayoutSize offset = LayoutSize(0, itemFont.fontMetrics().ascent());
- if (actualAlignment == RIGHT || actualAlignment == WEBKIT_RIGHT) {
- float textWidth = itemFont.width(textRun);
- offset.setWidth(itemBoudingBox.width() - textWidth - optionsSpacingHorizontal);
- } else if (actualAlignment == CENTER || actualAlignment == WEBKIT_CENTER) {
- float textWidth = itemFont.width(textRun);
- offset.setWidth((itemBoudingBox.width() - textWidth) / 2);
- } else
- offset.setWidth(optionsSpacingHorizontal);
- return offset;
-}
-
-void RenderListBox::paintItemForeground(PaintInfo& paintInfo, const LayoutPoint& paintOffset, int listIndex)
-{
- FontCachePurgePreventer fontCachePurgePreventer;
-
- HTMLSelectElement* select = selectElement();
-
- const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = select->listItems();
- HTMLElement* element = listItems[renderListBoxIndexToListIndex(listIndex)];
-
- RenderStyle* itemStyle = element->renderStyle();
- if (!itemStyle)
- itemStyle = style();
-
- if (itemStyle->visibility() == HIDDEN)
- return;
-
- String itemText;
- bool isOptionElement = isHTMLOptionElement(*element);
- if (isOptionElement)
- itemText = toHTMLOptionElement(*element).textIndentedToRespectGroupLabel();
- else if (isHTMLOptGroupElement(*element))
- itemText = toHTMLOptGroupElement(*element).groupLabelText();
- applyTextTransform(style(), itemText, ' ');
-
- Color textColor = element->renderStyle() ? resolveColor(element->renderStyle(), CSSPropertyColor) : resolveColor(CSSPropertyColor);
- if (isOptionElement && ((toHTMLOptionElement(*element).selected() && select->suggestedIndex() < 0) || listIndex == select->suggestedIndex())) {
- if (frame()->selection().isFocusedAndActive() && document().focusedElement() == node())
- textColor = RenderTheme::theme().activeListBoxSelectionForegroundColor();
- // Honor the foreground color for disabled items
- else if (!element->isDisabledFormControl() && !select->isDisabledFormControl())
- textColor = RenderTheme::theme().inactiveListBoxSelectionForegroundColor();
- }
-
- paintInfo.context->setFillColor(textColor);
-
- TextRun textRun(itemText, 0, 0, TextRun::AllowTrailingExpansion, itemStyle->direction(), isOverride(itemStyle->unicodeBidi()), true, TextRun::NoRounding);
- Font itemFont = style()->font();
- LayoutRect r = itemBoundingBoxRectInternal(paintOffset, listIndex);
- r.move(itemOffsetForAlignment(textRun, itemStyle, itemFont, r));
-
- if (isHTMLOptGroupElement(*element)) {
- FontDescription d = itemFont.fontDescription();
- d.setWeight(d.bolderWeight());
- itemFont = Font(d);
- itemFont.update(document().styleEngine()->fontSelector());
- }
-
- // Draw the item text
- TextRunPaintInfo textRunPaintInfo(textRun);
- textRunPaintInfo.bounds = r;
- paintInfo.context->drawBidiText(itemFont, textRunPaintInfo, roundedIntPoint(r.location()));
-}
-
-void RenderListBox::paintItemBackground(PaintInfo& paintInfo, const LayoutPoint& paintOffset, int listIndex)
-{
- const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = selectElement()->listItems();
- HTMLElement* element = listItems[renderListBoxIndexToListIndex(listIndex)];
-
- Color backColor;
- if (isHTMLOptionElement(*element) && ((toHTMLOptionElement(*element).selected() && selectElement()->suggestedIndex() < 0) || listIndex == selectElement()->suggestedIndex())) {
- if (frame()->selection().isFocusedAndActive() && document().focusedElement() == node())
- backColor = RenderTheme::theme().activeListBoxSelectionBackgroundColor();
- else
- backColor = RenderTheme::theme().inactiveListBoxSelectionBackgroundColor();
- } else {
- backColor = element->renderStyle() ? resolveColor(element->renderStyle(), CSSPropertyBackgroundColor) : resolveColor(CSSPropertyBackgroundColor);
- }
-
- // Draw the background for this list box item
- if (!element->renderStyle() || element->renderStyle()->visibility() != HIDDEN) {
- LayoutRect itemRect = itemBoundingBoxRectInternal(paintOffset, listIndex);
- itemRect.intersect(controlClipRect(paintOffset));
- paintInfo.context->fillRect(pixelSnappedIntRect(itemRect), backColor);
- }
-}
-
-bool RenderListBox::isPointInOverflowControl(HitTestResult& result, const LayoutPoint& locationInContainer, const LayoutPoint& accumulatedOffset)
-{
- if (!m_vBar || !m_vBar->shouldParticipateInHitTesting())
- return false;
-
- LayoutRect vertRect(accumulatedOffset.x() + scrollbarLeft(),
- accumulatedOffset.y() + borderTop(),
- verticalScrollbarWidth(),
- height() - borderTop() - borderBottom());
-
- if (vertRect.contains(locationInContainer)) {
- result.setScrollbar(m_vBar.get());
- return true;
- }
- return false;
-}
-
-int RenderListBox::listIndexAtOffset(const LayoutSize& offset) const
-{
- if (!numItems())
- return -1;
-
- if (offset.height() < borderTop() + paddingTop() || offset.height() > height() - paddingBottom() - borderBottom())
- return -1;
-
- int scrollbarWidth = verticalScrollbarWidth();
- int rightScrollbarOffset = style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft() ? scrollbarWidth : 0;
- int leftScrollbarOffset = style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft() ? 0 : scrollbarWidth;
- if (offset.width() < borderLeft() + paddingLeft() + rightScrollbarOffset
- || offset.width() > width() - borderRight() - paddingRight() - leftScrollbarOffset)
- return -1;
-
- int newOffset = (offset.height() - borderTop() - paddingTop()) / itemHeight() + m_indexOffset;
- return newOffset < numItems() ? renderListBoxIndexToListIndex(newOffset) : -1;
-}
-
-void RenderListBox::panScroll(const IntPoint& panStartMousePosition)
-{
- const int maxSpeed = 20;
- const int iconRadius = 7;
- const int speedReducer = 4;
-
- // FIXME: This doesn't work correctly with transforms.
- FloatPoint absOffset = localToAbsolute();
-
- IntPoint lastKnownMousePosition = frame()->eventHandler().lastKnownMousePosition();
- // We need to check if the last known mouse position is out of the window. When the mouse is out of the window, the position is incoherent
- static IntPoint previousMousePosition;
- if (lastKnownMousePosition.y() < 0)
- lastKnownMousePosition = previousMousePosition;
- else
- previousMousePosition = lastKnownMousePosition;
-
- int yDelta = lastKnownMousePosition.y() - panStartMousePosition.y();
-
- // If the point is too far from the center we limit the speed
- yDelta = std::max<int>(std::min<int>(yDelta, maxSpeed), -maxSpeed);
-
- if (abs(yDelta) < iconRadius) // at the center we let the space for the icon
- return;
-
- if (yDelta > 0)
- absOffset.move(0, listHeight().toFloat());
- else if (yDelta < 0)
- yDelta--;
-
- // Let's attenuate the speed
- yDelta /= speedReducer;
-
- IntPoint scrollPoint(0, 0);
- scrollPoint.setY(absOffset.y() + yDelta);
- int newOffset = scrollToward(scrollPoint);
- if (newOffset < 0)
- return;
-
- m_inAutoscroll = true;
- HTMLSelectElement* select = selectElement();
- select->updateListBoxSelection(!select->multiple());
- m_inAutoscroll = false;
-}
-
-int RenderListBox::scrollToward(const IntPoint& destination)
-{
- // FIXME: This doesn't work correctly with transforms.
- FloatPoint absPos = localToAbsolute();
- IntSize positionOffset = roundedIntSize(destination - absPos);
-
- int rows = numVisibleItems();
- int offset = m_indexOffset;
-
- if (positionOffset.height() < borderTop() + paddingTop() && scrollToRevealElementAtListIndexInternal(offset - 1))
- return offset - 1;
-
- if (positionOffset.height() > height() - paddingBottom() - borderBottom() && scrollToRevealElementAtListIndexInternal(offset + rows))
- return offset + rows - 1;
-
- return listIndexAtOffset(positionOffset);
-}
-
-void RenderListBox::autoscroll(const IntPoint&)
-{
- IntPoint pos = frame()->view()->windowToContents(frame()->eventHandler().lastKnownMousePosition());
-
- int endIndex = scrollToward(pos);
- if (selectElement()->isDisabledFormControl())
- return;
-
- if (endIndex >= 0) {
- HTMLSelectElement* select = selectElement();
- m_inAutoscroll = true;
-
- if (!select->multiple())
- select->setActiveSelectionAnchorIndex(renderListBoxIndexToListIndex(endIndex));
-
- select->setActiveSelectionEndIndex(renderListBoxIndexToListIndex(endIndex));
- select->updateListBoxSelection(!select->multiple());
- m_inAutoscroll = false;
- }
-}
-
void RenderListBox::stopAutoscroll()
{
- if (selectElement()->isDisabledFormControl())
- return;
-
- selectElement()->listBoxOnChange();
-}
-
-bool RenderListBox::scrollToRevealElementAtListIndexInternal(int index)
-{
- if (index < 0 || index >= numItems() || listIndexIsVisible(index))
- return false;
-
- int newOffset;
- if (index < m_indexOffset)
- newOffset = index;
- else
- newOffset = index - numVisibleItems() + 1;
-
- scrollToOffsetWithoutAnimation(VerticalScrollbar, newOffset);
-
- return true;
-}
-
-bool RenderListBox::listIndexIsVisible(int index) const
-{
- return index >= m_indexOffset && index < m_indexOffset + numVisibleItems();
-}
-
-bool RenderListBox::scroll(ScrollDirection direction, ScrollGranularity granularity, float multiplier)
-{
- return ScrollableArea::scroll(direction, granularity, multiplier);
-}
-
-int RenderListBox::scrollSize(ScrollbarOrientation orientation) const
-{
- return orientation == VerticalScrollbar ? (numItems() - numVisibleItems()) : 0;
-}
-
-IntPoint RenderListBox::scrollPosition() const
-{
- return IntPoint(0, m_indexOffset);
-}
-
-void RenderListBox::setScrollOffset(const IntPoint& offset)
-{
- scrollTo(offset.y());
-}
-
-void RenderListBox::scrollTo(int newOffset)
-{
- if (newOffset == m_indexOffset)
- return;
-
- m_indexOffset = newOffset;
-
- if (frameView()->isInPerformLayout())
- setShouldDoFullPaintInvalidationAfterLayout(true);
- else
- paintInvalidationForWholeRenderer();
-
- node()->document().enqueueScrollEventForNode(node());
-}
-
-LayoutUnit RenderListBox::itemHeight() const
-{
- return style()->fontMetrics().height() + rowSpacing;
-}
-
-int RenderListBox::verticalScrollbarWidth() const
-{
- return m_vBar && !m_vBar->isOverlayScrollbar() ? m_vBar->width() : 0;
-}
-
-// FIXME: We ignore padding in the vertical direction as far as these values are concerned, since that's
-// how the control currently paints.
-LayoutUnit RenderListBox::scrollWidth() const
-{
- // There is no horizontal scrolling allowed.
- return clientWidth();
-}
-
-LayoutUnit RenderListBox::scrollHeight() const
-{
- return std::max(clientHeight(), listHeight());
-}
-
-LayoutUnit RenderListBox::scrollLeft() const
-{
- return 0;
-}
-
-void RenderListBox::setScrollLeft(LayoutUnit)
-{
-}
-
-LayoutUnit RenderListBox::scrollTop() const
-{
- return m_indexOffset * itemHeight();
-}
-
-void RenderListBox::setScrollTop(LayoutUnit newTop)
-{
- // Determine an index and scroll to it.
- int index = newTop / itemHeight();
- if (index < 0 || index >= numItems() || index == m_indexOffset)
- return;
-
- scrollToOffsetWithoutAnimation(VerticalScrollbar, index);
-}
-
-bool RenderListBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
-{
- if (!RenderBlockFlow::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, hitTestAction))
- return false;
- const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = selectElement()->listItems();
- int size = numItems();
- LayoutPoint adjustedLocation = accumulatedOffset + location();
-
- for (int i = 0; i < size; ++i) {
- if (itemBoundingBoxRectInternal(adjustedLocation, i).contains(locationInContainer.point())) {
- if (Element* node = listItems[renderListBoxIndexToListIndex(i)]) {
- result.setInnerNode(node);
- if (!result.innerNonSharedNode())
- result.setInnerNonSharedNode(node);
- result.setLocalPoint(locationInContainer.point() - toLayoutSize(adjustedLocation));
- break;
- }
- }
- }
-
- return true;
-}
-
-LayoutRect RenderListBox::controlClipRect(const LayoutPoint& additionalOffset) const
-{
- LayoutRect clipRect = contentBoxRect();
- if (style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
- clipRect.moveBy(additionalOffset + LayoutPoint(verticalScrollbarWidth(), 0));
- else
- clipRect.moveBy(additionalOffset);
- return clipRect;
-}
-
-bool RenderListBox::isActive() const
-{
- Page* page = frame()->page();
- return page && page->focusController().isActive();
-}
-
-void RenderListBox::invalidateScrollbarRect(Scrollbar* scrollbar, const IntRect& rect)
-{
- IntRect scrollRect = rect;
- if (style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
- scrollRect.move(borderLeft(), borderTop());
- else
- scrollRect.move(width() - borderRight() - scrollbar->width(), borderTop());
-
- if (frameView()->isInPerformLayout()) {
- m_verticalBarDamage = scrollRect;
- m_hasVerticalBarDamage = true;
- } else {
- invalidatePaintRectangle(scrollRect);
- }
-}
-
-void RenderListBox::repaintScrollbarIfNeeded()
-{
- if (!hasVerticalBarDamage())
- return;
- invalidatePaintRectangle(verticalBarDamage());
-
- resetScrollbarDamage();
-}
-
-IntRect RenderListBox::convertFromScrollbarToContainingView(const Scrollbar* scrollbar, const IntRect& scrollbarRect) const
-{
- RenderView* view = this->view();
- if (!view)
- return scrollbarRect;
-
- IntRect rect = scrollbarRect;
-
- int scrollbarTop = borderTop();
- rect.move(scrollbarLeft(), scrollbarTop);
-
- return view->frameView()->convertFromRenderer(*this, rect);
-}
-
-IntRect RenderListBox::convertFromContainingViewToScrollbar(const Scrollbar* scrollbar, const IntRect& parentRect) const
-{
- RenderView* view = this->view();
- if (!view)
- return parentRect;
-
- IntRect rect = view->frameView()->convertToRenderer(*this, parentRect);
-
- int scrollbarTop = borderTop();
- rect.move(-scrollbarLeft(), -scrollbarTop);
- return rect;
-}
-
-IntPoint RenderListBox::convertFromScrollbarToContainingView(const Scrollbar* scrollbar, const IntPoint& scrollbarPoint) const
-{
- RenderView* view = this->view();
- if (!view)
- return scrollbarPoint;
-
- IntPoint point = scrollbarPoint;
-
- int scrollbarTop = borderTop();
- point.move(scrollbarLeft(), scrollbarTop);
-
- return view->frameView()->convertFromRenderer(*this, point);
-}
-
-IntPoint RenderListBox::convertFromContainingViewToScrollbar(const Scrollbar* scrollbar, const IntPoint& parentPoint) const
-{
- RenderView* view = this->view();
- if (!view)
- return parentPoint;
-
- IntPoint point = view->frameView()->convertToRenderer(*this, parentPoint);
-
- int scrollbarTop = borderTop();
- point.move(-scrollbarLeft(), -scrollbarTop);
- return point;
-}
-
-IntSize RenderListBox::contentsSize() const
-{
- return IntSize(scrollWidth(), scrollHeight());
-}
-
-int RenderListBox::visibleHeight() const
-{
- return height();
-}
-
-int RenderListBox::visibleWidth() const
-{
- return width();
-}
-
-IntPoint RenderListBox::lastKnownMousePosition() const
-{
- RenderView* view = this->view();
- if (!view)
- return IntPoint();
- return view->frameView()->lastKnownMousePosition();
-}
-
-bool RenderListBox::shouldSuspendScrollAnimations() const
-{
- RenderView* view = this->view();
- if (!view)
- return true;
- return view->frameView()->shouldSuspendScrollAnimations();
-}
-
-bool RenderListBox::scrollbarsCanBeActive() const
-{
- RenderView* view = this->view();
- if (!view)
- return false;
- return view->frameView()->scrollbarsCanBeActive();
-}
-
-IntPoint RenderListBox::minimumScrollPosition() const
-{
- return IntPoint();
-}
-
-IntPoint RenderListBox::maximumScrollPosition() const
-{
- return IntPoint(0, std::max(numItems() - numVisibleItems(), 0));
-}
-
-bool RenderListBox::userInputScrollable(ScrollbarOrientation orientation) const
-{
- return orientation == VerticalScrollbar;
-}
-
-bool RenderListBox::shouldPlaceVerticalScrollbarOnLeft() const
-{
- return false;
-}
-
-int RenderListBox::lineStep(ScrollbarOrientation) const
-{
- return 1;
-}
-
-int RenderListBox::pageStep(ScrollbarOrientation orientation) const
-{
- return std::max(1, numVisibleItems() - 1);
-}
-
-float RenderListBox::pixelStep(ScrollbarOrientation) const
-{
- return 1.0f / itemHeight();
-}
-
-IntRect RenderListBox::scrollableAreaBoundingBox() const
-{
- return absoluteBoundingBoxRect();
-}
-
-PassRefPtr<Scrollbar> RenderListBox::createScrollbar()
-{
- RefPtr<Scrollbar> widget;
- bool hasCustomScrollbarStyle = style()->hasPseudoStyle(SCROLLBAR);
- if (hasCustomScrollbarStyle)
- widget = RenderScrollbar::createCustomScrollbar(this, VerticalScrollbar, this->node());
- else {
- widget = Scrollbar::create(this, VerticalScrollbar, RenderTheme::theme().scrollbarControlSizeForPart(ListboxPart));
- didAddScrollbar(widget.get(), VerticalScrollbar);
- }
- document().view()->addChild(widget.get());
- return widget.release();
-}
-
-void RenderListBox::destroyScrollbar()
-{
- if (!m_vBar)
- return;
-
- if (!m_vBar->isCustomScrollbar())
- ScrollableArea::willRemoveScrollbar(m_vBar.get(), VerticalScrollbar);
- m_vBar->removeFromParent();
- m_vBar->disconnectFromScrollableArea();
- m_vBar = nullptr;
-}
-
-void RenderListBox::setHasVerticalScrollbar(bool hasScrollbar)
-{
- if (hasScrollbar == (m_vBar != 0))
+ HTMLSelectElement* select = selectElement();
+ if (select->isDisabledFormControl())
return;
-
- if (hasScrollbar)
- m_vBar = createScrollbar();
- else
- destroyScrollbar();
-
- if (m_vBar)
- m_vBar->styleChanged();
-
- // Force an update since we know the scrollbars have changed things.
- if (document().hasAnnotatedRegions())
- document().setAnnotatedRegionsDirty(true);
-}
-
-int RenderListBox::renderListBoxIndexToListIndex(int index) const
-{
- const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = selectElement()->listItems();
- const int size = static_cast<int>(listItems.size());
-
- if (size == numItems())
- return index;
-
- int listBoxIndex = 0;
- int listIndex = 0;
- for (; listIndex < size; ++listIndex) {
- const HTMLElement& element = *listItems[listIndex];
- if (isHTMLOptionElement(element) && toHTMLOptionElement(element).isDisplayNone())
- continue;
- if (isHTMLOptGroupElement(element) && toHTMLOptGroupElement(element).isDisplayNone())
- continue;
- if (index == listBoxIndex)
- break;
- ++listBoxIndex;
- }
- return listIndex;
-}
-
-int RenderListBox::listIndexToRenderListBoxIndex(int index) const
-{
- const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = selectElement()->listItems();
- const int size = static_cast<int>(listItems.size());
-
- if (size == numItems())
- return index;
-
- int listBoxIndex = 0;
- for (int listIndex = 0; listIndex < size; ++listIndex) {
- const HTMLElement& element = *listItems[listIndex];
- if (isHTMLOptionElement(element) && toHTMLOptionElement(element).isDisplayNone())
- continue;
- if (isHTMLOptGroupElement(element) && toHTMLOptGroupElement(element).isDisplayNone())
- continue;
- if (index == listIndex)
- break;
- ++listBoxIndex;
- }
- return listBoxIndex;
-}
-
-LayoutRect RenderListBox::itemBoundingBoxRect(const LayoutPoint& point, int index) const
-{
- return itemBoundingBoxRectInternal(point, listIndexToRenderListBoxIndex(index));
-}
-
-bool RenderListBox::scrollToRevealElementAtListIndex(int index)
-{
- return scrollToRevealElementAtListIndexInternal(listIndexToRenderListBoxIndex(index));
+ select->listBoxOnChange();
}
} // namespace WebCore
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