void InsertTextCommand::setEndingSelectionWithoutValidation(const Position& startPosition, const Position& endPosition)
{
// We could have inserted a part of composed character sequence,
// so we are basically treating ending selection as a range to avoid validation.
// <http://bugs.webkit.org/show_bug.cgi?id=15781>
VisibleSelection forcedEndingSelection;
forcedEndingSelection.setWithoutValidation(startPosition, endPosition);
forcedEndingSelection.setIsDirectional(endingSelection().isDirectional());
setEndingSelection(forcedEndingSelection);
}
void HTMLTextFormControlElement::setSelectionRange(int start, int end, TextFieldSelectionDirection direction, NeedToDispatchSelectEvent eventBehaviour, SelectionOption selectionOption)
{
if (openShadowRoot() || !isTextFormControl())
return;
const int editorValueLength = static_cast<int>(innerEditorValue().length());
ASSERT(editorValueLength >= 0);
end = std::max(std::min(end, editorValueLength), 0);
start = std::min(std::max(start, 0), end);
cacheSelection(start, end, direction);
if (selectionOption == NotChangeSelection || (selectionOption == ChangeSelectionIfFocused && document().focusedElement() != this) || !inShadowIncludingDocument()) {
if (eventBehaviour == DispatchSelectEvent)
scheduleSelectEvent();
return;
}
LocalFrame* frame = document().frame();
HTMLElement* innerEditor = innerEditorElement();
if (!frame || !innerEditor)
return;
Position startPosition = positionForIndex(innerEditor, start);
Position endPosition = start == end ? startPosition : positionForIndex(innerEditor, end);
ASSERT(start == indexForPosition(innerEditor, startPosition));
ASSERT(end == indexForPosition(innerEditor, endPosition));
#if ENABLE(ASSERT)
// startPosition and endPosition can be null position for example when
// "-webkit-user-select: none" style attribute is specified.
if (startPosition.isNotNull() && endPosition.isNotNull()) {
ASSERT(startPosition.anchorNode()->shadowHost() == this
&& endPosition.anchorNode()->shadowHost() == this);
}
#endif // ENABLE(ASSERT)
VisibleSelection newSelection;
if (direction == SelectionHasBackwardDirection)
newSelection.setWithoutValidation(endPosition, startPosition);
else
newSelection.setWithoutValidation(startPosition, endPosition);
newSelection.setIsDirectional(direction != SelectionHasNoDirection);
frame->selection().setSelection(newSelection, FrameSelection::DoNotAdjustInFlatTree | FrameSelection::CloseTyping | FrameSelection::ClearTypingStyle | (selectionOption == ChangeSelectionAndFocus ? 0 : FrameSelection::DoNotSetFocus));
if (eventBehaviour == DispatchSelectEvent)
scheduleSelectEvent();
}
void HTMLTextFormControlElement::setSelectionRange(int start, int end, TextFieldSelectionDirection direction)
{
document().updateLayoutIgnorePendingStylesheets();
if (!renderer() || !renderer()->isTextControl())
return;
end = std::max(end, 0);
start = std::min(std::max(start, 0), end);
if (!hasVisibleTextArea(*renderer(), innerTextElement())) {
cacheSelection(start, end, direction);
return;
}
VisiblePosition startPosition = visiblePositionForIndex(start);
VisiblePosition endPosition;
if (start == end)
endPosition = startPosition;
else
endPosition = visiblePositionForIndex(end);
#if !PLATFORM(IOS)
// startPosition and endPosition can be null position for example when
// "-webkit-user-select: none" style attribute is specified.
if (startPosition.isNotNull() && endPosition.isNotNull()) {
ASSERT(startPosition.deepEquivalent().deprecatedNode()->shadowHost() == this
&& endPosition.deepEquivalent().deprecatedNode()->shadowHost() == this);
}
#endif
VisibleSelection newSelection;
if (direction == SelectionHasBackwardDirection)
newSelection = VisibleSelection(endPosition, startPosition);
else
newSelection = VisibleSelection(startPosition, endPosition);
newSelection.setIsDirectional(direction != SelectionHasNoDirection);
if (Frame* frame = document().frame())
frame->selection().setSelection(newSelection);
}
void InsertTextCommand::doApply()
{
ASSERT(m_text.find('\n') == notFound);
if (!endingSelection().isNonOrphanedCaretOrRange())
return;
// Delete the current selection.
// FIXME: This delete operation blows away the typing style.
if (endingSelection().isRange()) {
if (performTrivialReplace(m_text, m_selectInsertedText))
return;
deleteSelection(false, true, true, false, false);
// deleteSelection eventually makes a new endingSelection out of a Position. If that Position doesn't have
// a renderer (e.g. it is on a <frameset> in the DOM), the VisibleSelection cannot be canonicalized to
// anything other than NoSelection. The rest of this function requires a real endingSelection, so bail out.
if (endingSelection().isNone())
return;
}
Position startPosition(endingSelection().start());
Position placeholder;
// We want to remove preserved newlines and brs that will collapse (and thus become unnecessary) when content
// is inserted just before them.
// FIXME: We shouldn't really have to do this, but removing placeholders is a workaround for 9661.
// If the caret is just before a placeholder, downstream will normalize the caret to it.
Position downstream(startPosition.downstream());
if (lineBreakExistsAtPosition(downstream)) {
// FIXME: This doesn't handle placeholders at the end of anonymous blocks.
VisiblePosition caret(startPosition);
if (isEndOfBlock(caret) && isStartOfParagraph(caret))
placeholder = downstream;
// Don't remove the placeholder yet, otherwise the block we're inserting into would collapse before
// we get a chance to insert into it. We check for a placeholder now, though, because doing so requires
// the creation of a VisiblePosition, and if we did that post-insertion it would force a layout.
}
// Insert the character at the leftmost candidate.
startPosition = startPosition.upstream();
// It is possible for the node that contains startPosition to contain only unrendered whitespace,
// and so deleteInsignificantText could remove it. Save the position before the node in case that happens.
Position positionBeforeStartNode(positionInParentBeforeNode(startPosition.containerNode()));
deleteInsignificantText(startPosition.upstream(), startPosition.downstream());
if (!startPosition.anchorNode()->inDocument())
startPosition = positionBeforeStartNode;
if (!startPosition.isCandidate())
startPosition = startPosition.downstream();
startPosition = positionAvoidingSpecialElementBoundary(startPosition);
Position endPosition;
if (m_text == "\t") {
endPosition = insertTab(startPosition);
startPosition = endPosition.previous();
if (placeholder.isNotNull())
removePlaceholderAt(placeholder);
} else {
// Make sure the document is set up to receive m_text
startPosition = positionInsideTextNode(startPosition);
ASSERT(startPosition.anchorType() == Position::PositionIsOffsetInAnchor);
ASSERT(startPosition.containerNode());
ASSERT(startPosition.containerNode()->isTextNode());
if (placeholder.isNotNull())
removePlaceholderAt(placeholder);
RefPtr<Text> textNode = startPosition.containerText();
const unsigned offset = startPosition.offsetInContainerNode();
insertTextIntoNode(textNode, offset, m_text);
endPosition = Position(textNode, offset + m_text.length());
if (m_markerSupplier)
m_markerSupplier->addMarkersToTextNode(textNode.get(), offset, m_text);
if (m_rebalanceType == RebalanceLeadingAndTrailingWhitespaces) {
// The insertion may require adjusting adjacent whitespace, if it is present.
rebalanceWhitespaceAt(endPosition);
// Rebalancing on both sides isn't necessary if we've inserted only spaces.
if (!shouldRebalanceLeadingWhitespaceFor(m_text))
rebalanceWhitespaceAt(startPosition);
} else {
ASSERT(m_rebalanceType == RebalanceAllWhitespaces);
if (canRebalance(startPosition) && canRebalance(endPosition))
rebalanceWhitespaceOnTextSubstring(textNode, startPosition.offsetInContainerNode(), endPosition.offsetInContainerNode());
}
}
// We could have inserted a part of composed character sequence,
// so we are basically treating ending selection as a range to avoid validation.
// <http://bugs.webkit.org/show_bug.cgi?id=15781>
VisibleSelection forcedEndingSelection;
forcedEndingSelection.setWithoutValidation(startPosition, endPosition);
forcedEndingSelection.setIsDirectional(endingSelection().isDirectional());
setEndingSelection(forcedEndingSelection);
// Handle the case where there is a typing style.
if (RefPtr<EditingStyle> typingStyle = document()->frame()->selection()->typingStyle()) {
typingStyle->prepareToApplyAt(endPosition, EditingStyle::PreserveWritingDirection);
if (!typingStyle->isEmpty())
applyStyle(typingStyle.get());
}
if (!m_selectInsertedText)
setEndingSelection(VisibleSelection(endingSelection().end(), endingSelection().affinity(), endingSelection().isDirectional()));
}
