mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 14:45:29 +00:00
134 lines
3.9 KiB
C++
134 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
#include "nsPlaceholderFrame.h"
|
|
#include "nsLineLayout.h"
|
|
#include "nsHTMLIIDs.h"
|
|
#include "nsIContent.h"
|
|
#include "nsIPresContext.h"
|
|
#include "nsIRenderingContext.h"
|
|
#include "nsIStyleContext.h"
|
|
#include "nsLayoutAtoms.h"
|
|
|
|
nsresult
|
|
NS_NewPlaceholderFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
|
|
{
|
|
NS_PRECONDITION(aNewFrame, "null OUT ptr");
|
|
if (nsnull == aNewFrame) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsPlaceholderFrame* it = new (aPresShell) nsPlaceholderFrame;
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
*aNewFrame = it;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPlaceholderFrame::Reflow(nsIPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
DO_GLOBAL_REFLOW_COUNT("nsPlaceholderFrame", aReflowState.reason);
|
|
aDesiredSize.width = 0;
|
|
aDesiredSize.height = 0;
|
|
aDesiredSize.ascent = 0;
|
|
aDesiredSize.descent = 0;
|
|
if (nsnull != aDesiredSize.maxElementSize) {
|
|
aDesiredSize.maxElementSize->width = 0;
|
|
aDesiredSize.maxElementSize->height = 0;
|
|
}
|
|
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPlaceholderFrame::GetFrameType(nsIAtom** aType) const
|
|
{
|
|
NS_PRECONDITION(nsnull != aType, "null OUT parameter pointer");
|
|
*aType = nsLayoutAtoms::placeholderFrame;
|
|
NS_ADDREF(*aType);
|
|
return NS_OK;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
NS_IMETHODIMP
|
|
nsPlaceholderFrame::Paint(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsFramePaintLayer aWhichLayer)
|
|
{
|
|
if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) && GetShowFrameBorders()) {
|
|
float p2t;
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
aRenderingContext.SetColor(NS_RGB(0, 255, 255));
|
|
nscoord x = NSIntPixelsToTwips(-5, p2t);
|
|
aRenderingContext.FillRect(x, 0, NSIntPixelsToTwips(13, p2t),
|
|
NSIntPixelsToTwips(3, p2t));
|
|
nscoord y = NSIntPixelsToTwips(-10, p2t);
|
|
aRenderingContext.FillRect(0, y, NSIntPixelsToTwips(3, p2t),
|
|
NSIntPixelsToTwips(10, p2t));
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPlaceholderFrame::GetFrameName(nsString& aResult) const
|
|
{
|
|
return MakeFrameName("Placeholder", aResult);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPlaceholderFrame::List(nsIPresContext* aPresContext, FILE* out, PRInt32 aIndent) const
|
|
{
|
|
IndentBy(out, aIndent);
|
|
ListTag(out);
|
|
nsIView* view;
|
|
GetView(aPresContext, &view);
|
|
if (nsnull != view) {
|
|
fprintf(out, " [view=%p]", view);
|
|
}
|
|
fprintf(out, " {%d,%d,%d,%d}", mRect.x, mRect.y, mRect.width, mRect.height);
|
|
if (0 != mState) {
|
|
fprintf(out, " [state=%08x]", mState);
|
|
}
|
|
if (mOutOfFlowFrame) {
|
|
fprintf(out, " outOfFlowFrame=");
|
|
nsFrame::ListTag(out, mOutOfFlowFrame);
|
|
}
|
|
fputs("\n", out);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPlaceholderFrame::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const
|
|
{
|
|
if (!aResult) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
*aResult = sizeof(*this);
|
|
return NS_OK;
|
|
}
|
|
#endif
|