bool DOMSelection::containsNode(const Node* n, bool allowPartial) const
{
if (!m_frame)
return false;
FrameSelection* selection = m_frame->selection();
if (!n || m_frame->document() != n->document() || selection->isNone())
return false;
ContainerNode* parentNode = n->parentNode();
unsigned nodeIndex = n->nodeIndex();
RefPtr<Range> selectedRange = selection->selection().toNormalizedRange();
if (!parentNode)
return false;
ExceptionCode ec = 0;
bool nodeFullySelected = Range::compareBoundaryPoints(parentNode, nodeIndex, selectedRange->startContainer(), selectedRange->startOffset(), ec) >= 0 && !ec
&& Range::compareBoundaryPoints(parentNode, nodeIndex + 1, selectedRange->endContainer(), selectedRange->endOffset(), ec) <= 0 && !ec;
ASSERT(!ec);
if (nodeFullySelected)
return true;
bool nodeFullyUnselected = (Range::compareBoundaryPoints(parentNode, nodeIndex, selectedRange->endContainer(), selectedRange->endOffset(), ec) > 0 && !ec)
|| (Range::compareBoundaryPoints(parentNode, nodeIndex + 1, selectedRange->startContainer(), selectedRange->startOffset(), ec) < 0 && !ec);
ASSERT(!ec);
if (nodeFullyUnselected)
return false;
return allowPartial || n->isTextNode();
}
/**
* webkit_web_frame_get_range_for_word_around_caret:
* @frame: a #WebKitWebFrame
*
* Returns a #WebKitDOMRange for the word where the caret is currently
* positioned.
*
* Returns: a #WebKitDOMRange spanning the word where the caret
* currently is positioned. If there is no caret %NULL will be
* returned.
*
* Since: 1.5.1.
**/
WebKitDOMRange* webkit_web_frame_get_range_for_word_around_caret(WebKitWebFrame* frame)
{
g_return_val_if_fail(WEBKIT_IS_WEB_FRAME(frame), 0);
Frame* coreFrame = core(frame);
FrameSelection* selection = coreFrame->selection();
if (selection->isNone() || selection->isRange())
return 0;
VisibleSelection visibleSelection(selection->selection().visibleStart());
visibleSelection.expandUsingGranularity(WordGranularity);
return kit(visibleSelection.firstRange().get());
}
String DOMSelection::type() const
{
if (!m_frame)
return String();
FrameSelection* selection = m_frame->selection();
// This is a WebKit DOM extension, incompatible with an IE extension
// IE has this same attribute, but returns "none", "text" and "control"
// http://msdn.microsoft.com/en-us/library/ms534692(VS.85).aspx
if (selection->isNone())
return "None";
if (selection->isCaret())
return "Caret";
return "Range";
}
void DOMSelection::deleteFromDocument()
{
if (!m_frame)
return;
FrameSelection* selection = m_frame->selection();
if (selection->isNone())
return;
if (isCollapsed())
selection->modify(FrameSelection::AlterationExtend, DirectionBackward, CharacterGranularity);
RefPtr<Range> selectedRange = selection->selection().toNormalizedRange();
if (!selectedRange)
return;
selectedRange->deleteContents(ASSERT_NO_EXCEPTION);
setBaseAndExtent(selectedRange->startContainer(ASSERT_NO_EXCEPTION), selectedRange->startOffset(), selectedRange->startContainer(), selectedRange->startOffset(), ASSERT_NO_EXCEPTION);
}
void DOMSelection::addRange(Range* r)
{
if (!m_frame)
return;
if (!r)
return;
FrameSelection* selection = m_frame->selection();
if (selection->isNone()) {
selection->setSelection(VisibleSelection(r));
return;
}
RefPtr<Range> range = selection->selection().toNormalizedRange();
ExceptionCode ec = 0;
if (r->compareBoundaryPoints(Range::START_TO_START, range.get(), ec) == -1) {
// We don't support discontiguous selection. We don't do anything if r and range don't intersect.
if (r->compareBoundaryPoints(Range::START_TO_END, range.get(), ec) > -1) {
if (r->compareBoundaryPoints(Range::END_TO_END, range.get(), ec) == -1)
// The original range and r intersect.
selection->setSelection(VisibleSelection(r->startPosition(), range->endPosition(), DOWNSTREAM));
else
// r contains the original range.
selection->setSelection(VisibleSelection(r));
}
} else {
// We don't support discontiguous selection. We don't do anything if r and range don't intersect.
if (r->compareBoundaryPoints(Range::END_TO_START, range.get(), ec) < 1 && !ec) {
if (r->compareBoundaryPoints(Range::END_TO_END, range.get(), ec) == -1)
// The original range contains r.
selection->setSelection(VisibleSelection(range.get()));
else
// The original range and r intersect.
selection->setSelection(VisibleSelection(range->startPosition(), r->endPosition(), DOWNSTREAM));
}
}
}
static void clearSelectionIfNeeded(Frame* oldFocusedFrame, Frame* newFocusedFrame, Node* newFocusedNode)
{
if (!oldFocusedFrame || !newFocusedFrame)
return;
if (oldFocusedFrame->document() != newFocusedFrame->document())
return;
FrameSelection* s = oldFocusedFrame->selection();
if (s->isNone())
return;
bool caretBrowsing = oldFocusedFrame->settings()->caretBrowsingEnabled();
if (caretBrowsing)
return;
Node* selectionStartNode = s->selection().start().deprecatedNode();
if (selectionStartNode == newFocusedNode || selectionStartNode->isDescendantOf(newFocusedNode) || selectionStartNode->shadowAncestorNode() == newFocusedNode)
return;
if (Node* mousePressNode = newFocusedFrame->eventHandler()->mousePressNode()) {
if (mousePressNode->renderer() && !mousePressNode->canStartSelection()) {
// Don't clear the selection for contentEditable elements, but do clear it for input and textarea. See bug 38696.
Node * root = s->rootEditableElement();
if (!root)
return;
if (Node* shadowAncestorNode = root->shadowAncestorNode()) {
if (!shadowAncestorNode->hasTagName(inputTag) && !shadowAncestorNode->hasTagName(textareaTag))
return;
}
}
}
s->clear();
}
