Files
Mozilla/mozilla/layout/html/forms/src/nsInputFile.cpp
troy 003a885b86 Changed nsReflowState structs to be linked together
git-svn-id: svn://10.0.0.236/trunk@2643 18797224-902f-48f8-a5cc-f745e15eee43
1998-05-29 20:36:05 +00:00

311 lines
8.7 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 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsInput.h"
#include "nsInputFrame.h"
#include "nsInputFile.h"
#include "nsIContent.h"
#include "prtypes.h"
#include "nsIFrame.h"
#include "nsISupports.h"
#include "nsIAtom.h"
#include "nsIPresContext.h"
#include "nsIHTMLContent.h"
#include "nsHTMLIIDs.h"
#include "nsHTMLAtoms.h"
#include "nsHTMLForms.h"
#include "nsInlineFrame.h"
#include "nsIFileWidget.h"
#include "nsITextWidget.h"
#include "nsWidgetsCID.h"
#include "nsRepository.h"
#include "nsIView.h"
PRInt32 nsInputFileFrame::gSpacing = 40;
nsString* nsInputFile::gFILE_TYPE = new nsString("file");
nsInputFileFrame::nsInputFileFrame(nsIContent* aContent, nsIFrame* aParentFrame)
: nsInlineFrame(aContent, aParentFrame)
{
}
nsInputFileFrame::~nsInputFileFrame()
{
}
// XXX this should be removed when nsView exposes it
nsIWidget*
GetWindowTemp(nsIView *aView)
{
nsIWidget *window = nsnull;
nsIView *ancestor = aView;
while (nsnull != ancestor) {
if (nsnull != (window = ancestor->GetWidget())) {
return window;
}
ancestor = ancestor->GetParent();
}
return nsnull;
}
static NS_DEFINE_IID(kCFileWidgetCID, NS_FILEWIDGET_CID);
static NS_DEFINE_IID(kIFileWidgetIID, NS_IFILEWIDGET_IID);
// this is in response to the MouseClick from the containing browse button
// XXX still need to get filters from accept attribute
void nsInputFileFrame::MouseClicked(nsIPresContext* aPresContext)
{
nsInputFrame* textFrame = (nsInputFrame *)mFirstChild;
nsITextWidget* textWidget;
nsIView* textView;
textFrame->GetView(textView);
if (nsnull == textView) {
return;
}
if (NS_OK != textFrame->GetWidget(textView, (nsIWidget **)&textWidget)) {
return;
}
nsIWidget* parentWidget = GetWindowTemp(textView->GetParent());
nsIFileWidget *fileWidget;
nsString title("FileWidget Title <here> mode = save");
NSRepository::CreateInstance(kCFileWidgetCID, nsnull, kIFileWidgetIID, (void**)&fileWidget);
nsString titles[] = {"all files"};
nsString filters[] = {"*.*"};
fileWidget->SetFilterList(1, titles, filters);
fileWidget->Create(parentWidget, title, eMode_load, nsnull, nsnull);
PRUint32 result = fileWidget->Show();
if (result) {
nsString fileName;
fileWidget->GetFile(fileName);
((nsITextWidget *)textWidget)->SetText(fileName);
}
NS_RELEASE(fileWidget);
NS_RELEASE(parentWidget);
NS_RELEASE(textView);
NS_RELEASE(textWidget);
}
NS_IMETHODIMP
nsInputFileFrame::MoveTo(nscoord aX, nscoord aY)
{
//if ( ((aX == 0) && (aY == 0)) || (aX != mRect.x) || (aY != mRect.y)) {
if ((aX != mRect.x) || (aY != mRect.y)) {
nsIFrame* childFrame = mFirstChild;
nscoord x = aX;
nscoord y = aY;
while (nsnull != childFrame) {
nsresult result = childFrame->MoveTo(x, y);
nsSize childSize;
((nsInputFrame *)childFrame)->GetWidgetSize(childSize);
x = x + childSize.width + gSpacing;
childFrame->GetNextSibling(childFrame);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsInputFileFrame::SizeTo(nscoord aWidth, nscoord aHeight)
{
mRect.width = aWidth;
mRect.height = aHeight;
// Let the view know the correct size
nsIView* view = nsnull;
GetView(view);
if (nsnull != view) {
view->SetDimensions(aWidth, aHeight);
NS_RELEASE(view);
}
return NS_OK;
}
NS_IMETHODIMP nsInputFileFrame::Reflow(nsIPresContext* aCX,
nsReflowMetrics& aDesiredSize,
const nsReflowState& aReflowState,
nsReflowStatus& aStatus)
{
nsIFrame* childFrame;
PRInt32 numChildren;
ChildCount(numChildren);
if (0 == numChildren) { // create the children frames
nsInputFile* content = (nsInputFile *)mContent;
numChildren = content->ChildCount();
NS_ASSERTION(2 == numChildren, "nsInputFile must contain 2 children");
nsInput* childContent;
if (nsnull == mStyleContext) {
GetStyleContext(aCX, mStyleContext);
}
for (int i = 0; i < numChildren; i++) {
childContent = (nsInput *)content->ChildAt(i);
// Use this style context for the children. They will not modify it.
// XXX When IStyleContext provides an api for cloning/inheriting, it could be used instead.
childContent->CreateFrame(aCX, this, mStyleContext, childFrame);
if (0 == i) {
mFirstChild = childFrame;
SetFirstContentOffset(mFirstChild);
}
else {
mFirstChild->SetNextSibling(childFrame);
SetLastContentOffset(childFrame);
}
NS_RELEASE(childContent);
mChildCount++;
}
}
nsSize maxSize = aReflowState.maxSize;
nsReflowMetrics desiredSize = aDesiredSize;
aDesiredSize.width = gSpacing;
aDesiredSize.height = 0;
childFrame = mFirstChild;
while (nsnull != childFrame) {
nsReflowState reflowState(childFrame, aReflowState, maxSize);
nsresult result = childFrame->Reflow(aCX, desiredSize, reflowState, aStatus);
// XXX check aStatus ??
if (NS_OK != result) {
break;
}
maxSize.width -= desiredSize.width;
aDesiredSize.width += desiredSize.width;
aDesiredSize.height = desiredSize.height;
childFrame->GetNextSibling(childFrame);
}
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
if (nsnull != aDesiredSize.maxElementSize) {
aDesiredSize.maxElementSize->width = aDesiredSize.width;
aDesiredSize.maxElementSize->height = aDesiredSize.height;
}
aStatus = NS_FRAME_COMPLETE;
return NS_OK;
}
//----------------------------------------------------------------------
// nsInputFile
nsInputFile::nsInputFile(nsIAtom* aTag, nsIFormManager* aManager)
: nsInput(aTag, aManager)
{
}
nsInputFile::~nsInputFile()
{
}
nsresult
nsInputFile::CreateFrame(nsIPresContext* aPresContext,
nsIFrame* aParentFrame,
nsIStyleContext* aStyleContext,
nsIFrame*& aResult)
{
nsIFrame* frame = new nsInputFileFrame(this, aParentFrame);
if (nsnull == frame) {
return NS_ERROR_OUT_OF_MEMORY;
}
frame->SetStyleContext(aPresContext, aStyleContext);
aResult = frame;
return NS_OK;
}
void nsInputFile::GetType(nsString& aResult) const
{
aResult = "file";
}
PRInt32
nsInputFile::GetMaxNumValues()
{
return 1;
}
PRBool
nsInputFile::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
nsString* aValues, nsString* aNames)
{
if ((aMaxNumValues <= 0) || (nsnull == mName)) {
return PR_FALSE;
}
nsInput* text = (nsInput *)ChildAt(0);
// use our name and the text widgets value
aNames[0] = *mName;
nsITextWidget* textWidget = (nsITextWidget *)text->GetWidget();
textWidget->GetText(aValues[0], 0); // the last parm is not used
NS_IF_RELEASE(text);
aNumValues = 1;
return PR_TRUE;
}
void nsInputFile::SetAttribute(nsIAtom* aAttribute, const nsString& aValue)
{
// get the text and set its relevant attributes
nsInput* text = (nsInput *)ChildAt(0);
if ((aAttribute == nsHTMLAtoms::size) || (aAttribute == nsHTMLAtoms::maxlength) ||
(aAttribute == nsHTMLAtoms::value) ||
(aAttribute == nsHTMLAtoms::disabled) || (aAttribute == nsHTMLAtoms::readonly))
{
text->SetAttribute(aAttribute, aValue);
}
NS_RELEASE(text);
nsInputFileSuper::SetAttribute(aAttribute, aValue);
}
nsresult
NS_NewHTMLInputFile(nsIHTMLContent** aInstancePtrResult,
nsIAtom* aTag, nsIFormManager* aManager)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
nsIHTMLContent* inputFile = new nsInputFile(aTag, aManager);
if (nsnull == inputFile) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsIHTMLContent* child;
nsresult status = NS_NewHTMLInputText(&child, aTag, aManager);
if (NS_OK != status) {
return NS_ERROR_OUT_OF_MEMORY;
}
inputFile->AppendChild(child);
status = NS_NewHTMLInputBrowse(&child, aTag, aManager);
if (NS_OK != status) {
return NS_ERROR_OUT_OF_MEMORY;
}
inputFile->AppendChild(child);
return inputFile->QueryInterface(kIHTMLContentIID, (void**) aInstancePtrResult);
}