#include "config.h"
#include "DOMSupport.h"
#include "FloatQuad.h"
#include "Frame.h"
#include "FrameView.h"
#include "HTMLFormElement.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "HTMLTextAreaElement.h"
#include "Node.h"
#include "Range.h"
#include "RenderObject.h"
#include "RenderText.h"
#include "RenderTextControl.h"
#include "TextIterator.h"
#include "VisibleSelection.h"
#include "WTFString.h"
#include "htmlediting.h"
#include "visible_units.h"
#include <limits>
using WTF::Vector;
using namespace WebCore;
namespace BlackBerry {
namespace WebKit {
namespace DOMSupport {
void visibleTextQuads(const VisibleSelection& selection, Vector<FloatQuad>& quads)
{
if (!selection.isRange())
return;
ASSERT(selection.firstRange());
visibleTextQuads(*(selection.firstRange()), quads, true );
}
void visibleTextQuads(const Range& range, Vector<FloatQuad>& quads, bool useSelectionHeight)
{
Node* startContainer = range.startContainer();
Node* endContainer = range.endContainer();
if (!startContainer || !endContainer)
return;
Node* stopNode = range.pastLastNode();
for (Node* node = range.firstNode(); node != stopNode; node = node->traverseNextNode()) {
RenderObject* r = node->renderer();
if (!r || !r->isText())
continue;
if (r->style()->visibility() != VISIBLE)
continue;
RenderText* renderText = toRenderText(r);
int startOffset = node == startContainer ? range.startOffset() : 0;
int endOffset = node == endContainer ? range.endOffset() : std::numeric_limits<int>::max();
renderText->absoluteQuadsForRange(quads, startOffset, endOffset, useSelectionHeight);
}
}
bool isTextInputElement(Element* element)
{
return element->isTextFormControl()
|| element->hasTagName(HTMLNames::textareaTag)
|| element->isContentEditable();
}
bool isPasswordElement(const Element* element)
{
return element && element->hasTagName(HTMLNames::inputTag)
&& static_cast<const HTMLInputElement*>(element)->isPasswordField();
}
WTF::String inputElementText(Element* element)
{
if (!element)
return WTF::String();
WTF::String elementText;
if (element->hasTagName(HTMLNames::inputTag)) {
const HTMLInputElement* inputElement = static_cast<const HTMLInputElement*>(element);
elementText = inputElement->value();
} else if (element->hasTagName(HTMLNames::textareaTag)) {
const HTMLTextAreaElement* inputElement = static_cast<const HTMLTextAreaElement*>(element);
elementText = inputElement->value();
} else if (element->isContentEditable()) {
RefPtr<Range> rangeForNode = rangeOfContents(element);
elementText = rangeForNode.get()->text();
}
return elementText;
}
bool isElementTypePlugin(const Element* element)
{
if (!element)
return false;
if (element->hasTagName(HTMLNames::objectTag)
|| element->hasTagName(HTMLNames::embedTag)
|| element->hasTagName(HTMLNames::appletTag))
return true;
return false;
}
HTMLTextFormControlElement* toTextControlElement(Node* node)
{
if (!(node && node->isElementNode()))
return 0;
Element* element = static_cast<Element*>(node);
if (!element->isFormControlElement())
return 0;
HTMLFormControlElement* formElement = static_cast<HTMLFormControlElement*>(element);
if (!formElement->isTextFormControl())
return 0;
return static_cast<HTMLTextFormControlElement*>(formElement);
}
bool isPopupInputField(const Element* element)
{
return isDateTimeInputField(element) || isColorInputField(element);
}
bool isDateTimeInputField(const Element* element)
{
if (!element->hasTagName(HTMLNames::inputTag))
return false;
const HTMLInputElement* inputElement = static_cast<const HTMLInputElement*>(element);
if (inputElement->isDateControl()
|| inputElement->isDateTimeControl()
|| inputElement->isDateTimeLocalControl()
|| inputElement->isTimeControl()
|| inputElement->isMonthControl())
return true;
return false;
}
bool isColorInputField(const Element* element)
{
if (!element->hasTagName(HTMLNames::inputTag))
return false;
const HTMLInputElement* inputElement = static_cast<const HTMLInputElement*>(element);
#if ENABLE(INPUT_TYPE_COLOR)
if (inputElement->isColorControl())
return true;
#endif
return false;
}
AttributeState elementSupportsAutocorrect(const Element* element)
{
DEFINE_STATIC_LOCAL(QualifiedName, autocorrectAttr, (nullAtom, "autocorrect", nullAtom));
return elementAttributeState(element, autocorrectAttr);
}
AttributeState elementSupportsAutocomplete(const Element* element)
{
return elementAttributeState(element, HTMLNames::autocompleteAttr);
}
AttributeState elementAttributeState(const Element* element, const QualifiedName& attributeName)
{
if (element->fastHasAttribute(attributeName)) {
AtomicString attributeString = element->fastGetAttribute(attributeName);
if (equalIgnoringCase(attributeString, "off"))
return Off;
if (equalIgnoringCase(attributeString, "on"))
return On;
}
if (element->isFormControlElement()) {
const HTMLFormControlElement* formElement = static_cast<const HTMLFormControlElement*>(element);
if (formElement->form() && formElement->form()->fastHasAttribute(attributeName)) {
AtomicString attributeString = formElement->form()->fastGetAttribute(attributeName);
if (equalIgnoringCase(attributeString, "off"))
return Off;
if (equalIgnoringCase(attributeString, "on"))
return On;
}
}
return Default;
}
bool isTextBasedContentEditableElement(Element* element)
{
if (!element)
return false;
if (element->isReadOnlyFormControl())
return false;
if (isPopupInputField(element))
return false;
return element->isTextFormControl() || element->isContentEditable();
}
IntRect transformedBoundingBoxForRange(const Range& range)
{
IntRect result;
Vector<FloatQuad> quads;
visibleTextQuads(range, quads);
const size_t n = quads.size();
for (size_t i = 0; i < n; ++i)
result.unite(quads[i].enclosingBoundingBox());
return result;
}
VisibleSelection visibleSelectionForInputElement(Element* element)
{
return visibleSelectionForRangeInputElement(element, 0, inputElementText(element).length());
}
VisibleSelection visibleSelectionForRangeInputElement(Element* element, int start, int end)
{
if (DOMSupport::toTextControlElement(element)) {
RenderTextControl* textRender = toRenderTextControl(element->renderer());
if (!textRender)
return VisibleSelection();
VisiblePosition startPosition = textRender->visiblePositionForIndex(start);
VisiblePosition endPosition;
if (start == end)
endPosition = startPosition;
else
endPosition = textRender->visiblePositionForIndex(end);
return VisibleSelection(startPosition, endPosition);
}
RefPtr<Range> selectionRange = TextIterator::rangeFromLocationAndLength(element, start, end - start);
if (!selectionRange)
return VisibleSelection();
if (start == end)
return VisibleSelection(selectionRange.get()->startPosition(), DOWNSTREAM);
VisiblePosition visibleStart(selectionRange->startPosition(), DOWNSTREAM);
VisiblePosition visibleEnd(selectionRange->endPosition(), SEL_DEFAULT_AFFINITY);
return VisibleSelection(visibleStart, visibleEnd);
}
Node* DOMContainerNodeForPosition(const Position& position)
{
Node* nodeAtPos = position.containerNode();
if (nodeAtPos && nodeAtPos->isInShadowTree())
nodeAtPos = nodeAtPos->shadowAncestorNode();
return nodeAtPos;
}
bool isPositionInNode(Node* node, const Position& position)
{
if (!node)
return false;
Node* domNodeAtPos = DOMContainerNodeForPosition(position);
if (!domNodeAtPos)
return false;
int offset = 0;
if (domNodeAtPos == position.containerNode())
offset = position.computeOffsetInContainerNode();
RefPtr<Range> rangeForNode = rangeOfContents(node);
int ec;
return rangeForNode->isPointInRange(domNodeAtPos, offset, ec);
}
static bool matchesReservedStringEmail(const AtomicString& string)
{
return string.contains("email", false );
}
static bool matchesReservedStringUrl(const AtomicString& string)
{
return equalIgnoringCase("url", string);
}
bool elementIdOrNameIndicatesEmail(const HTMLInputElement* inputElement)
{
if (!inputElement)
return false;
if (matchesReservedStringEmail(inputElement->getIdAttribute()))
return true;
if (inputElement->fastHasAttribute(HTMLNames::nameAttr)) {
if (matchesReservedStringEmail(inputElement->fastGetAttribute(HTMLNames::nameAttr)))
return true;
}
return false;
}
bool elementIdOrNameIndicatesUrl(const HTMLInputElement* inputElement)
{
if (!inputElement)
return false;
if (matchesReservedStringUrl(inputElement->getIdAttribute()))
return true;
if (inputElement->fastHasAttribute(HTMLNames::nameAttr)) {
if (matchesReservedStringUrl(inputElement->fastGetAttribute(HTMLNames::nameAttr)))
return true;
}
return false;
}
static bool matchesReservedStringPreventingAutocomplete(const AtomicString& string)
{
if (matchesReservedStringEmail(string)
|| matchesReservedStringUrl(string)
|| string.contains("user", false )
|| string.contains("name", false )
|| string.contains("login", false ))
return true;
return false;
}
bool elementIdOrNameIndicatesNoAutocomplete(const Element* element)
{
if (!element->hasTagName(HTMLNames::inputTag))
return false;
AtomicString idAttribute = element->getIdAttribute();
if (matchesReservedStringPreventingAutocomplete(idAttribute))
return true;
if (element->fastHasAttribute(HTMLNames::nameAttr)) {
AtomicString nameAttribute = element->fastGetAttribute(HTMLNames::nameAttr);
if (matchesReservedStringPreventingAutocomplete(nameAttribute))
return true;
}
return false;
}
bool elementPatternIndicatesNumber(const HTMLInputElement* inputElement)
{
return elementPatternMatches("[0-9]", inputElement);
}
bool elementPatternIndicatesHexadecimal(const HTMLInputElement* inputElement)
{
return elementPatternMatches("[0-9a-fA-F]", inputElement);
}
bool elementPatternMatches(const char* pattern, const HTMLInputElement* inputElement)
{
WTF::String patternString(pattern);
if (!inputElement || patternString.isEmpty())
return false;
if (inputElement->fastHasAttribute(HTMLNames::patternAttr)) {
WTF::String patternAttribute = inputElement->fastGetAttribute(HTMLNames::patternAttr);
if (patternAttribute.startsWith(patternString)) {
if (patternAttribute.length() == patternString.length())
return true;
if (patternAttribute.length() == patternString.length() + 1 && patternAttribute[patternString.length()] == '*')
return true;
if (patternAttribute[patternString.length()] != '{' || !patternAttribute.endsWith('}'))
return false;
unsigned count = 0;
patternString = patternString + "{%d}";
return (sscanf(patternAttribute.latin1().data(), patternString.latin1().data() + '\0', &count) == 1) && count > 0;
}
}
return false;
}
IntPoint convertPointToFrame(const Frame* sourceFrame, const Frame* targetFrame, const IntPoint& point, const bool clampToTargetFrame)
{
ASSERT(sourceFrame && targetFrame);
if (sourceFrame == targetFrame)
return point;
ASSERT(sourceFrame->view() && targetFrame->view());
ASSERT(targetFrame->tree());
Frame* targetFrameParent = targetFrame->tree()->parent();
IntRect targetFrameRect = targetFrame->view()->frameRect();
IntPoint targetPoint = point;
if (targetFrameParent != sourceFrame)
targetFrameRect = sourceFrame->view()->windowToContents(targetFrameParent->view()->contentsToWindow(targetFrameRect));
if (clampToTargetFrame && !targetFrameRect.contains(targetPoint))
targetPoint = IntPoint(targetPoint.x() < targetFrameRect.x() ? targetFrameRect.x() : std::min(targetPoint.x(), targetFrameRect.maxX()),
targetPoint.y() < targetFrameRect.y() ? targetFrameRect.y() : std::min(targetPoint.y(), targetFrameRect.maxY()));
else if (!targetFrameRect.contains(targetPoint))
return InvalidPoint;
return targetFrame->view()->windowToContents(sourceFrame->view()->contentsToWindow(targetPoint));
}
VisibleSelection visibleSelectionForClosestActualWordStart(const VisibleSelection& selection)
{
if (selection.selectionType() != VisibleSelection::RangeSelection && isWhitespace(selection.visibleStart().characterAfter())) {
VisibleSelection leftSelection(previousWordPosition(selection.start()));
bool leftSelectionIsOnWord = !isWhitespace(leftSelection.visibleStart().characterAfter());
VisibleSelection rangeSelection(endOfWord(leftSelection.start()), selection.visibleStart());
int leftDistance = TextIterator::rangeLength(rangeSelection.toNormalizedRange().get());
VisibleSelection rightSelection(nextWordPosition(selection.start()));
rightSelection = previousWordPosition(rightSelection.start());
bool rightSelectionIsOnWord = !isWhitespace(rightSelection.visibleStart().characterAfter());
rangeSelection = VisibleSelection(rightSelection.visibleStart(), selection.visibleStart());
int rightDistance = TextIterator::rangeLength(rangeSelection.toNormalizedRange().get());
if (!leftSelectionIsOnWord && !rightSelectionIsOnWord)
return selection;
if (!rightSelectionIsOnWord || (leftSelectionIsOnWord && leftDistance < rightDistance)) {
return leftSelection;
}
return rightSelection;
}
return selection;
}
Frame* incrementFrame(Frame* curr, bool forward, bool wrapFlag)
{
return forward
? curr->tree()->traverseNextWithWrap(wrapFlag)
: curr->tree()->traversePreviousWithWrap(wrapFlag);
}
} } }