157 lines
4.7 KiB
C++
157 lines
4.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsInlineFrame.h"
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#include "nsIPresShell.h"
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#include "nsFormControlFrame.h"
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#include "nsIDOMHTMLAnchorElement.h"
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typedef nsInlineFrame nsLabelFrameSuper;
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class nsLabelFrame : public nsLabelFrameSuper
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{
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public:
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nsLabelFrame();
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virtual ~nsLabelFrame();
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NS_IMETHOD Destroy(nsIPresContext *aPresContext);
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NS_IMETHOD Reflow(nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD GetFrameForPoint(nsIPresContext* aPresContext,
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const nsPoint& aPoint,
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nsFramePaintLayer aWhichLayer,
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nsIFrame** aFrame);
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsString& aResult) const {
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return MakeFrameName("Label", aResult);
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}
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#endif
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};
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nsresult
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NS_NewLabelFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame, PRUint32 aStateFlags)
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{
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NS_PRECONDITION(aNewFrame, "null OUT ptr");
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if (nsnull == aNewFrame) {
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return NS_ERROR_NULL_POINTER;
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}
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nsLabelFrame* it = new (aPresShell) nsLabelFrame;
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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// set the state flags (if any are provided)
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nsFrameState state;
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it->GetFrameState( &state );
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state |= aStateFlags;
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it->SetFrameState( state );
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*aNewFrame = it;
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return NS_OK;
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}
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nsLabelFrame::nsLabelFrame()
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: nsLabelFrameSuper()
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{
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}
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nsLabelFrame::~nsLabelFrame()
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{
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}
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NS_IMETHODIMP
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nsLabelFrame::Destroy(nsIPresContext *aPresContext)
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{
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nsFormControlFrame::RegUnRegAccessKey(aPresContext,
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NS_STATIC_CAST(nsIFrame*, this), PR_FALSE);
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return nsLabelFrameSuper::Destroy(aPresContext);
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}
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NS_IMETHODIMP
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nsLabelFrame::Reflow(nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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if (eReflowReason_Initial == aReflowState.reason)
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nsFormControlFrame::RegUnRegAccessKey(aPresContext,
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NS_STATIC_CAST(nsIFrame*, this), PR_TRUE);
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return nsLabelFrameSuper::Reflow(aPresContext, aDesiredSize,
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aReflowState, aStatus);
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}
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NS_IMETHODIMP
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nsLabelFrame::GetFrameForPoint(nsIPresContext* aPresContext,
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const nsPoint& aPoint,
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nsFramePaintLayer aWhichLayer,
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nsIFrame** aFrame)
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{
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nsresult rv = nsLabelFrameSuper::GetFrameForPoint(aPresContext, aPoint, aWhichLayer, aFrame);
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if (rv == NS_OK) {
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nsCOMPtr<nsIFormControlFrame> controlFrame = do_QueryInterface(*aFrame);
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if (!controlFrame) {
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// if the hit frame isn't a form control then
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// check to see if it is an anchor
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// XXX It could be something else that should get the event. Perhaps
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// this is better handled by event bubbling?
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nsIFrame * parent;
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(*aFrame)->GetParent(&parent);
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while (parent != this && parent != nsnull) {
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nsCOMPtr<nsIContent> content;
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parent->GetContent(getter_AddRefs(content));
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nsCOMPtr<nsIDOMHTMLAnchorElement> anchorElement(do_QueryInterface(content));
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if (anchorElement) {
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nsIStyleContext *psc;
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parent->GetStyleContext(&psc);
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if (psc) {
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const nsStyleVisibility* vis =
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(const nsStyleVisibility*)psc->GetStyleData(eStyleStruct_Visibility);
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if (vis->IsVisible()) {
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*aFrame = parent;
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return NS_OK;
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}
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}
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}
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parent->GetParent(&parent);
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}
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const nsStyleVisibility* vis =
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(const nsStyleVisibility*)mStyleContext->GetStyleData(eStyleStruct_Visibility);
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if (vis->IsVisible()) {
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*aFrame = this;
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return NS_OK;
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}
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}
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}
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return rv;
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}
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