void RenderTextControlMultiLine::updateFromElement()
{
createSubtreeIfNeeded(0);
RenderTextControl::updateFromElement();
HTMLTextAreaElement* textArea = static_cast<HTMLTextAreaElement*>(node());
if (m_placeholderVisible)
setInnerTextValue(textArea->getAttribute(HTMLNames::placeholderAttr));
else
setInnerTextValue(textArea->value());
}
void HTMLTextAreaElement::setValueCommon(const String& newValue)
{
m_wasModifiedByUser = false;
// Code elsewhere normalizes line endings added by the user via the keyboard or pasting.
// We normalize line endings coming from JavaScript here.
String normalizedValue = newValue.isNull() ? "" : newValue;
normalizedValue.replace("\r\n", "\n");
normalizedValue.replace('\r', '\n');
// Return early because we don't want to move the caret or trigger other side effects
// when the value isn't changing. This matches Firefox behavior, at least.
if (normalizedValue == value())
return;
m_value = normalizedValue;
setInnerTextValue(m_value);
setLastChangeWasNotUserEdit();
updatePlaceholderVisibility(false);
setNeedsStyleRecalc();
setFormControlValueMatchesRenderer(true);
// Set the caret to the end of the text value.
if (document()->focusedNode() == this) {
unsigned endOfString = m_value.length();
setSelectionRange(endOfString, endOfString);
}
notifyFormStateChanged();
setTextAsOfLastFormControlChangeEvent(normalizedValue);
}
void RenderTextControlMultiLine::updateFromElement()
{
createSubtreeIfNeeded(0);
RenderTextControl::updateFromElement();
setInnerTextValue(static_cast<HTMLTextAreaElement*>(node())->value());
}
void HTMLTextAreaElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
{
setLastChangeWasNotUserEdit();
if (!m_isDirty)
setNonDirtyValue(defaultValue());
setInnerTextValue(value());
HTMLElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
}
void HTMLTextAreaElement::childrenChanged(const ChildChange& change)
{
HTMLElement::childrenChanged(change);
setLastChangeWasNotUserEdit();
if (m_isDirty)
setInnerTextValue(value());
else
setNonDirtyValue(defaultValue());
}
void HTMLTextFormControlElement::setRangeText(const String& replacement, unsigned start, unsigned end, const String& selectionMode, ExceptionState& exceptionState)
{
if (start > end) {
exceptionState.throwDOMException(IndexSizeError, "The provided start value (" + String::number(start) + ") is larger than the provided end value (" + String::number(end) + ").");
return;
}
if (hasAuthorShadowRoot())
return;
String text = innerTextValue();
unsigned textLength = text.length();
unsigned replacementLength = replacement.length();
unsigned newSelectionStart = selectionStart();
unsigned newSelectionEnd = selectionEnd();
start = std::min(start, textLength);
end = std::min(end, textLength);
if (start < end)
text.replace(start, end - start, replacement);
else
text.insert(replacement, start);
setInnerTextValue(text);
// FIXME: What should happen to the value (as in value()) if there's no renderer?
if (!renderer())
return;
subtreeHasChanged();
if (equalIgnoringCase(selectionMode, "select")) {
newSelectionStart = start;
newSelectionEnd = start + replacementLength;
} else if (equalIgnoringCase(selectionMode, "start"))
newSelectionStart = newSelectionEnd = start;
else if (equalIgnoringCase(selectionMode, "end"))
newSelectionStart = newSelectionEnd = start + replacementLength;
else {
// Default is "preserve".
long delta = replacementLength - (end - start);
if (newSelectionStart > end)
newSelectionStart += delta;
else if (newSelectionStart > start)
newSelectionStart = start;
if (newSelectionEnd > end)
newSelectionEnd += delta;
else if (newSelectionEnd > start)
newSelectionEnd = start + replacementLength;
}
setSelectionRange(newSelectionStart, newSelectionEnd, SelectionHasNoDirection);
}
void HTMLTextFormControlElement::setRangeText(const String& replacement, unsigned start, unsigned end, const String& selectionMode, ExceptionCode& ec)
{
if (start > end) {
ec = INDEX_SIZE_ERR;
return;
}
String text = innerTextValue();
unsigned textLength = text.length();
unsigned replacementLength = replacement.length();
unsigned newSelectionStart = selectionStart();
unsigned newSelectionEnd = selectionEnd();
start = std::min(start, textLength);
end = std::min(end, textLength);
if (start < end)
text.replace(start, end - start, replacement);
else
text.insert(replacement, start);
setInnerTextValue(text);
// FIXME: What should happen to the value (as in value()) if there's no renderer?
if (!renderer())
return;
subtreeHasChanged();
if (equalIgnoringCase(selectionMode, "select")) {
newSelectionStart = start;
newSelectionEnd = start + replacementLength;
} else if (equalIgnoringCase(selectionMode, "start"))
newSelectionStart = newSelectionEnd = start;
else if (equalIgnoringCase(selectionMode, "end"))
newSelectionStart = newSelectionEnd = start + replacementLength;
else {
// Default is "preserve".
long delta = replacementLength - (end - start);
if (newSelectionStart > end)
newSelectionStart += delta;
else if (newSelectionStart > start)
newSelectionStart = start;
if (newSelectionEnd > end)
newSelectionEnd += delta;
else if (newSelectionEnd > start)
newSelectionEnd = start + replacementLength;
}
setSelectionRange(newSelectionStart, newSelectionEnd, SelectionHasNoDirection);
}
