412 lines
12 KiB
C++
412 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Pierre Phaneuf <pp@ludusdesign.com>
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* Adrian Havill <havill@redhat.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsICharsetConverterManager.h"
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#include "nsICharsetAlias.h"
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#include "nsIPlatformCharset.h"
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#include "nsCOMPtr.h"
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#include "nsXPIDLString.h"
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#include "nsReadableUtils.h"
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#include "nsID.h"
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#include "nsFormFrame.h"
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#include "nsIFormControlFrame.h"
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#include "nsFormControlFrame.h"
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#include "nsFileControlFrame.h"
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#include "nsIForm.h"
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#include "nsIFormControl.h"
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#include "nsIAtom.h"
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#include "nsHTMLIIDs.h"
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#include "nsIRenderingContext.h"
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#include "nsIPresShell.h"
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#include "nsIPresContext.h"
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#include "nsIStyleContext.h"
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#include "nsCSSRendering.h"
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#include "nsHTMLIIDs.h"
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#include "nsDebug.h"
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#include "nsIWidget.h"
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#include "nsVoidArray.h"
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#include "nsHTMLAtoms.h"
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#include "nsCRT.h"
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#include "nsIURL.h"
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#include "nsIHTMLDocument.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIPrintContext.h"
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#include "nsIDocument.h"
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#include "nsILinkHandler.h"
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#include "nsIDOMHTMLFormElement.h"
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#include "nsIDOMNSHTMLFormElement.h"
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#include "nsDOMError.h"
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#include "nsHTMLParts.h"
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#include "nsHTMLReflowCommand.h"
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#include "nsICategoryManager.h"
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#include "nsIFormSubmitObserver.h"
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// Security
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#include "nsIScriptSecurityManager.h"
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#include "nsIDOMWindowInternal.h"
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PRBool nsFormFrame::gInitPasswordManager = PR_FALSE;
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//----------------------------------------------------------------------
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NS_IMETHODIMP
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nsFormFrame::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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if (aIID.Equals(NS_GET_IID(nsIFormManager))) {
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*aInstancePtr = (void*)(nsIFormManager*)this;
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return NS_OK;
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}
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return nsBlockFrame::QueryInterface(aIID, aInstancePtr);
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}
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nsrefcnt nsFormFrame::AddRef(void)
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{
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NS_ERROR("not supported");
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return 0;
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}
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nsrefcnt nsFormFrame::Release(void)
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{
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NS_ERROR("not supported");
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return 0;
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}
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nsFormFrame::nsFormFrame()
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: nsBlockFrame()
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{
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}
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nsFormFrame::~nsFormFrame()
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{
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PRInt32 numControls = mFormControls.Count();
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PRInt32 i;
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for (i = (numControls-1); i>=0; i--) {
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nsIFormControlFrame* fcFrame = (nsIFormControlFrame*) mFormControls.ElementAt(i);
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fcFrame->SetFormFrame(nsnull);
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}
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}
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void nsFormFrame::AddFormControlFrame(nsIPresContext* aPresContext, nsIFrame& aFrame)
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{
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// Make sure we have a form control
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nsIFormControlFrame* fcFrame = nsnull;
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nsresult result = aFrame.QueryInterface(NS_GET_IID(nsIFormControlFrame), (void**)&fcFrame);
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if ((NS_OK != result) || (nsnull == fcFrame)) {
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return;
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}
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// Get this control's form frame and add this control to it
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nsCOMPtr<nsIContent> iContent;
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result = aFrame.GetContent(getter_AddRefs(iContent));
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if (NS_SUCCEEDED(result) && iContent) {
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nsCOMPtr<nsIFormControl> formControl;
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result = iContent->QueryInterface(NS_GET_IID(nsIFormControl), getter_AddRefs(formControl));
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if (NS_SUCCEEDED(result) && formControl) {
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nsCOMPtr<nsIDOMHTMLFormElement> formElem;
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result = formControl->GetForm(getter_AddRefs(formElem));
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if (NS_SUCCEEDED(result) && formElem) {
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nsCOMPtr<nsIPresShell> presShell;
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result = aPresContext->GetShell(getter_AddRefs(presShell));
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if (NS_SUCCEEDED(result) && presShell) {
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nsIContent* formContent;
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result = formElem->QueryInterface(NS_GET_IID(nsIContent), (void**)&formContent);
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if (NS_SUCCEEDED(result) && formContent) {
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nsFormFrame* formFrame = nsnull;
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result = presShell->GetPrimaryFrameFor(formContent, (nsIFrame**)&formFrame);
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if (NS_SUCCEEDED(result) && formFrame) {
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fcFrame->SetFormFrame(formFrame);
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formFrame->AddFormControlFrame(aPresContext, *fcFrame);
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}
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NS_RELEASE(formContent);
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}
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}
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}
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}
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}
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}
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void nsFormFrame::RemoveFormControlFrame(nsIFormControlFrame& aFrame)
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{
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// Remove form control from array
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mFormControls.RemoveElement(&aFrame);
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}
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void nsFormFrame::AddFormControlFrame(nsIPresContext* aPresContext, nsIFormControlFrame& aFrame)
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{
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PRInt32 type;
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aFrame.GetType(&type);
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if (!gInitPasswordManager && type == NS_FORM_INPUT_PASSWORD) {
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// Initialize the password manager category
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gInitPasswordManager = PR_TRUE;
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NS_CreateServicesFromCategory(NS_PASSWORDMANAGER_CATEGORY,
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NS_STATIC_CAST(nsISupports*,NS_STATIC_CAST(void*,this)),
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NS_PASSWORDMANAGER_CATEGORY);
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}
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// Add this control to the list
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// Sort by content ID - this assures we submit in document order (bug 18728)
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PRInt32 i = mFormControls.Count();
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nsCOMPtr<nsIContent> newContent;
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nsIFrame* newFrame = nsnull;
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nsresult rv = aFrame.QueryInterface(NS_GET_IID(nsIFrame), (void **)&newFrame);
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if (NS_SUCCEEDED(rv) && newFrame) {
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rv = newFrame->GetContent(getter_AddRefs(newContent));
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if (NS_SUCCEEDED(rv) && newContent) {
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PRUint32 newID;
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newContent->GetContentID(&newID);
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for (; i>0; i--) {
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nsIFormControlFrame* thisControl = (nsIFormControlFrame*) mFormControls.ElementAt(i-1);
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if (thisControl) {
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nsCOMPtr<nsIContent> thisContent;
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nsIFrame* thisFrame = nsnull;
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rv = thisControl->QueryInterface(NS_GET_IID(nsIFrame), (void **)&thisFrame);
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if (NS_SUCCEEDED(rv) && thisFrame) {
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rv = thisFrame->GetContent(getter_AddRefs(thisContent));
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if (NS_SUCCEEDED(rv) && thisContent) {
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PRUint32 thisID;
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thisContent->GetContentID(&thisID);
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if (newID > thisID)
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break;
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}
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}
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}
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}
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}
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}
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mFormControls.InsertElementAt(&aFrame, i);
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}
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nsresult
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NS_NewFormFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame, PRUint32 aFlags)
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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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nsFormFrame* it = new (aPresShell) nsFormFrame;
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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it->SetFlags(aFlags);
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*aNewFrame = it;
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return NS_OK;
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}
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#if 0
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PRIVATE
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void DebugPrint(char* aLabel, nsString aString)
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{
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char* out = ToNewCString(aString);
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printf("\n %s=%s\n", aLabel, out);
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delete [] out;
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}
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#endif
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// static helper functions for nsIFormControls
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PRBool
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nsFormFrame::GetDisabled(nsIFrame* aChildFrame, nsIContent* aContent)
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{
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PRBool result = PR_FALSE;
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nsIContent* content = aContent;
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if (nsnull == content) {
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aChildFrame->GetContent(&content);
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}
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if (nsnull != content) {
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nsIHTMLContent* htmlContent = nsnull;
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content->QueryInterface(kIHTMLContentIID, (void**)&htmlContent);
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if (nsnull != htmlContent) {
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nsHTMLValue value;
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if (NS_CONTENT_ATTR_HAS_VALUE == htmlContent->GetHTMLAttribute(nsHTMLAtoms::disabled, value)) {
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result = PR_TRUE;
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}
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NS_RELEASE(htmlContent);
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}
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if (nsnull == aContent) {
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NS_RELEASE(content);
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}
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}
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return result;
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}
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PRBool
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nsFormFrame::GetReadonly(nsIFrame* aChildFrame, nsIContent* aContent)
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{
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PRBool result = PR_FALSE;
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nsIContent* content = aContent;
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if (nsnull == content) {
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aChildFrame->GetContent(&content);
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}
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if (nsnull != content) {
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nsIHTMLContent* htmlContent = nsnull;
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content->QueryInterface(kIHTMLContentIID, (void**)&htmlContent);
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if (nsnull != htmlContent) {
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nsHTMLValue value;
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if (NS_CONTENT_ATTR_HAS_VALUE == htmlContent->GetHTMLAttribute(nsHTMLAtoms::readonly, value)) {
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result = PR_TRUE;
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}
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NS_RELEASE(htmlContent);
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}
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if (nsnull == aContent) {
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NS_RELEASE(content);
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}
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}
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return result;
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}
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nsresult
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nsFormFrame::GetName(nsIFrame* aChildFrame,
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nsAString& aName,
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nsIContent* aContent)
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{
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nsresult result = NS_FORM_NOTOK;
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nsIContent* content = aContent;
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if (nsnull == content) {
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aChildFrame->GetContent(&content);
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}
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if (nsnull != content) {
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nsIHTMLContent* htmlContent = nsnull;
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result = content->QueryInterface(kIHTMLContentIID, (void**)&htmlContent);
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if (NS_SUCCEEDED(result) && (nsnull != htmlContent)) {
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nsHTMLValue value;
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result = htmlContent->GetHTMLAttribute(nsHTMLAtoms::name, value);
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if (NS_CONTENT_ATTR_HAS_VALUE == result) {
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if (eHTMLUnit_String == value.GetUnit()) {
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value.GetStringValue(aName);
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}
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}
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NS_RELEASE(htmlContent);
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}
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if (nsnull == aContent) {
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NS_RELEASE(content);
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}
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}
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return result;
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}
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nsresult
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nsFormFrame::GetValue(nsIFrame* aChildFrame,
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nsAString& aValue,
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nsIContent* aContent)
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{
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nsresult result = NS_FORM_NOTOK;
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nsIContent* content = aContent;
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if (nsnull == content) {
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aChildFrame->GetContent(&content);
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}
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if (nsnull != content) {
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nsIHTMLContent* htmlContent = nsnull;
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result = content->QueryInterface(kIHTMLContentIID, (void**)&htmlContent);
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if (NS_SUCCEEDED(result) && (nsnull != htmlContent)) {
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nsHTMLValue value;
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result = htmlContent->GetHTMLAttribute(nsHTMLAtoms::value, value);
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if (NS_CONTENT_ATTR_HAS_VALUE == result) {
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if (eHTMLUnit_String == value.GetUnit()) {
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value.GetStringValue(aValue);
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}
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}
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NS_RELEASE(htmlContent);
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}
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if (nsnull == aContent) {
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NS_RELEASE(content);
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}
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}
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return result;
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}
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void
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nsFormFrame::StyleChangeReflow(nsIPresContext* aPresContext,
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nsIFrame* aFrame)
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{
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nsCOMPtr<nsIPresShell> shell;
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aPresContext->GetShell(getter_AddRefs(shell));
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nsHTMLReflowCommand* reflowCmd;
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nsresult rv = NS_NewHTMLReflowCommand(&reflowCmd, aFrame,
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eReflowType_StyleChanged);
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if (NS_SUCCEEDED(rv)) {
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shell->AppendReflowCommand(reflowCmd);
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}
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}
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// Bug 99920 - Finds the first submit button and how many text inputs there
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// if there is only one text input or password then submission can take place
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// or it can take place if it finds at least one submit button
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nsIFrame*
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nsFormFrame::GetFirstSubmitButtonAndTxtCnt(PRInt32& aInputTxtCnt)
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{
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nsIFrame* submitFrame = nsnull;
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aInputTxtCnt = 0;
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PRInt32 numControls = mFormControls.Count();
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for (int i = 0; i < numControls; i++) {
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nsIFormControlFrame* fcFrame = (nsIFormControlFrame*) mFormControls.ElementAt(i);
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PRInt32 type;
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fcFrame->GetType(&type);
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if ((type == NS_FORM_INPUT_SUBMIT || type == NS_FORM_BUTTON_SUBMIT || type == NS_FORM_INPUT_IMAGE) &&
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submitFrame == nsnull) {
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CallQueryInterface(fcFrame, &submitFrame);
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NS_ASSERTION(submitFrame, "This has to be a frame!");
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} else if (type == NS_FORM_INPUT_TEXT || type == NS_FORM_INPUT_PASSWORD) {
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aInputTxtCnt++;
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}
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}
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return submitFrame;
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}
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