зеркало из https://github.com/mozilla/pjs.git
441 строка
12 KiB
C++
441 строка
12 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 License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsFileControlFrame.h"
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#include "nsFormFrame.h"
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#include "nsButtonControlFrame.h"
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#include "nsTextControlFrame.h"
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#include "nsNativeTextControlFrame.h" // XXX: remove when frame construction is done properly
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#include "nsIContent.h"
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#include "prtypes.h"
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#include "nsIAtom.h"
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#include "nsIPresContext.h"
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#include "nsIHTMLContent.h"
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#include "nsHTMLIIDs.h"
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#include "nsHTMLAtoms.h"
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#include "nsIFileWidget.h"
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#include "nsWidgetsCID.h"
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#include "nsIComponentManager.h"
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#include "nsIView.h"
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#include "nsHTMLParts.h"
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#include "nsIDOMHTMLInputElement.h"
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#include "nsIFormControl.h"
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#include "nsINameSpaceManager.h"
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#include "nsCOMPtr.h"
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#include "nsFileSpec.h"
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#include "nsISupportsArray.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMDocument.h"
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#include "nsDocument.h"
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#include "nsIDOMMouseListener.h"
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static NS_DEFINE_IID(kCFileWidgetCID, NS_FILEWIDGET_CID);
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static NS_DEFINE_IID(kIFileWidgetIID, NS_IFILEWIDGET_IID);
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static NS_DEFINE_IID(kIFormControlFrameIID, NS_IFORMCONTROLFRAME_IID);
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static NS_DEFINE_IID(kIDOMHTMLInputElementIID, NS_IDOMHTMLINPUTELEMENT_IID);
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static NS_DEFINE_IID(kIDOMMouseListenerIID, NS_IDOMMOUSELISTENER_IID);
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static NS_DEFINE_IID(kIAnonymousContentCreatorIID, NS_IANONYMOUS_CONTENT_CREATOR_IID);
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nsresult
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NS_NewFileControlFrame(nsIFrame** aNewFrame)
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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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nsFileControlFrame* it = new nsFileControlFrame();
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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*aNewFrame = it;
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return NS_OK;
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}
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nsFileControlFrame::nsFileControlFrame():mTextFrame(nsnull), mFormFrame(nsnull)
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{
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}
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NS_IMETHODIMP
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nsFileControlFrame::CreateAnonymousContent(nsISupportsArray& aChildList)
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{
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// create text field
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nsIHTMLContent* text = nsnull;
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nsIAtom* tag = NS_NewAtom("input");
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NS_NewHTMLInputElement(&text, tag);
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text->SetAttribute(kNameSpaceID_None, nsHTMLAtoms::type, nsAutoString("text"), PR_FALSE);
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aChildList.AppendElement(text);
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// create browse button
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nsIHTMLContent* browse = nsnull;
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tag = NS_NewAtom("input");
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NS_NewHTMLInputElement(&browse, tag);
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browse->SetAttribute(kNameSpaceID_None, nsHTMLAtoms::type, nsAutoString("button"), PR_FALSE);
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browse->SetAttribute(kNameSpaceID_None, nsHTMLAtoms::value, nsAutoString("browse..."), PR_FALSE);
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aChildList.AppendElement(browse);
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// get the reciever interface from the browser button's content node
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nsCOMPtr<nsIDOMEventReceiver> reciever(do_QueryInterface(browse));
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// we shouldn't have to unregister this listener because when
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// our frame goes away all these content node go away as well
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// because our frame is the only one who references them.
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reciever->AddEventListenerByIID(this, kIDOMMouseListenerIID);
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return NS_OK;
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}
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nsresult
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nsFileControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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NS_PRECONDITION(0 != aInstancePtr, "null ptr");
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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} else if (aIID.Equals(kIAnonymousContentCreatorIID)) {
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*aInstancePtr = (void*)(nsIAnonymousContentCreator*) this;
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NS_ADDREF_THIS();
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return NS_OK;
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} else if (aIID.Equals(kIFormControlFrameIID)) {
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*aInstancePtr = (void*) ((nsIFormControlFrame*) this);
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return NS_OK;
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} else if (aIID.Equals(kIDOMMouseListenerIID)) {
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*aInstancePtr = (void*)(nsIDOMMouseListener*) this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return nsHTMLContainerFrame::QueryInterface(aIID, aInstancePtr);
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}
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PRBool
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nsFileControlFrame::IsSuccessful(nsIFormControlFrame* aSubmitter)
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{
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nsAutoString name;
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return (NS_CONTENT_ATTR_HAS_VALUE == GetName(&name));
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}
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void
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nsFileControlFrame::Reset()
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{
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if (mTextFrame) {
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mTextFrame->Reset();
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}
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}
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NS_IMETHODIMP
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nsFileControlFrame::GetType(PRInt32* aType) const
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{
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*aType = NS_FORM_INPUT_FILE;
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return NS_OK;
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}
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// XXX this should be removed when nsView exposes it
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nsIWidget* GetWindowTemp(nsIView *aView);
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nsIWidget*
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nsFileControlFrame::GetWindowTemp(nsIView *aView)
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{
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nsIWidget *window = nsnull;
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nsIView *ancestor = aView;
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while (nsnull != ancestor) {
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ancestor->GetWidget(window);
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if (nsnull != window) {
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return window;
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}
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ancestor->GetParent(ancestor);
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}
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return nsnull;
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}
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void
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nsFileControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
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{
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if (mTextFrame) {
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mTextFrame->SetFocus(aOn, aRepaint);
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}
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}
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/**
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* This is called when our browse button is clicked
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*/
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nsresult
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nsFileControlFrame::MouseClick(nsIDOMEvent* aMouseEvent)
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{
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nsIView* textView;
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mTextFrame->GetView(&textView);
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if (nsnull == textView) {
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return NS_OK;
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}
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nsresult result = NS_OK;
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nsIView* parentView;
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textView->GetParent(parentView);
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nsIWidget* parentWidget = GetWindowTemp(parentView);
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nsIFileWidget *fileWidget = nsnull;
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nsString title("File Upload");
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nsComponentManager::CreateInstance(kCFileWidgetCID, nsnull, kIFileWidgetIID, (void**)&fileWidget);
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if (fileWidget)
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{
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nsString titles[] = {"all files"};
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nsString filters[] = {"*.*"};
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fileWidget->SetFilterList(1, titles, filters);
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fileWidget->Create(parentWidget, title, eMode_load, nsnull, nsnull);
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result = fileWidget->Show();
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if (result) {
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nsFileSpec fileSpec;
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fileWidget->GetFile(fileSpec);
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char* leafName = fileSpec.GetLeafName();
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if (leafName) {
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mTextFrame->SetProperty(nsHTMLAtoms::value,leafName);
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nsCRT::free(leafName);
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}
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}
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NS_RELEASE(fileWidget);
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}
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NS_RELEASE(parentWidget);
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return NS_OK;
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}
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NS_IMETHODIMP nsFileControlFrame::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 (mFormFrame == nsnull && eReflowReason_Initial == aReflowState.reason) {
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// add ourself as an nsIFormControlFrame
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nsFormFrame::AddFormControlFrame(aPresContext, *this);
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mTextFrame = GetTextControlFrame(this);
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}
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return nsAreaFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
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}
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/*
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NS_IMETHODIMP
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nsFileControlFrame::SetInitialChildList(nsIPresContext& aPresContext,
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nsIAtom* aListName,
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nsIFrame* aChildList)
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{
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nsresult r = nsAreaFrame::SetInitialChildList(aPresContext, aListName, aChildList);
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// given that the CSS frame constuctor created all our frames. We need to find the text field
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// so we can get info from it.
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mTextFrame = GetTextControlFrame(this);
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}
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*/
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/**
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* Given a start node. Find the given text node inside. We need to do this because the
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* frame constuctor create the frame and its implementation. So we are given the text
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* node from the constructor and we find it in our tree.
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*/
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nsTextControlFrame*
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nsFileControlFrame::GetTextControlFrame(nsIFrame* aStart)
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{
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// find the text control frame.
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nsIFrame* childFrame = nsnull;
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aStart->FirstChild(nsnull, &childFrame);
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while (nsnull != childFrame)
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{
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// see if the child is a text control
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nsCOMPtr<nsIContent> content;
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childFrame->GetContent(getter_AddRefs(content));
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nsIAtom* atom;
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if (content->GetTag(atom) == NS_OK && atom == nsHTMLAtoms::input) {
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nsString value;
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if (NS_CONTENT_ATTR_HAS_VALUE == content->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::type, value))
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{
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if (value == "text")
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return (nsTextControlFrame*)childFrame;
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}
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}
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// if not continue looking
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nsTextControlFrame* frame = GetTextControlFrame(childFrame);
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if (frame != nsnull)
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return frame;
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nsresult rv = childFrame->GetNextSibling(&childFrame);
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NS_ASSERTION(rv == NS_OK,"failed to get next child");
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}
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return nsnull;
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}
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PRIntn
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nsFileControlFrame::GetSkipSides() const
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{
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return 0;
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}
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NS_IMETHODIMP
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nsFileControlFrame::GetName(nsString* aResult)
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{
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nsresult result = NS_FORM_NOTOK;
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if (mContent) {
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nsIHTMLContent* formControl = nsnull;
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result = mContent->QueryInterface(kIHTMLContentIID, (void**)&formControl);
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if ((NS_OK == result) && formControl) {
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nsHTMLValue value;
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result = formControl->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(*aResult);
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}
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}
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NS_RELEASE(formControl);
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}
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}
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return result;
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}
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PRInt32
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nsFileControlFrame::GetMaxNumValues()
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{
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return 1;
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}
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PRBool
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nsFileControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
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nsString* aValues, nsString* aNames)
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{
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nsAutoString name;
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nsresult result = GetName(&name);
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if ((aMaxNumValues <= 0) || (NS_CONTENT_ATTR_HAS_VALUE != result)) {
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return PR_FALSE;
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}
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// use our name and the text widgets value
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aNames[0] = name;
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nsresult status = PR_FALSE;
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if (NS_SUCCEEDED(mTextFrame->GetProperty(nsHTMLAtoms::value, aValues[0]))) {
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aNumValues = 1;
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status = PR_TRUE;
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}
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return status;
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}
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NS_IMETHODIMP
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nsFileControlFrame::GetFrameName(nsString& aResult) const
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{
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return MakeFrameName("FileControl", aResult);
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}
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NS_IMETHODIMP
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nsFileControlFrame::GetFormContent(nsIContent*& aContent) const
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{
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nsIContent* content;
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nsresult rv;
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rv = GetContent(&content);
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aContent = content;
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return rv;
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}
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NS_IMETHODIMP
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nsFileControlFrame::GetFont(nsIPresContext* aPresContext,
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nsFont& aFont)
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{
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nsFormControlHelper::GetFont(this, aPresContext, mStyleContext, aFont);
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return NS_OK;
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}
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nscoord
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nsFileControlFrame::GetVerticalInsidePadding(float aPixToTwip,
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nscoord aInnerHeight) const
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{
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return 0;
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}
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nscoord
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nsFileControlFrame::GetHorizontalInsidePadding(nsIPresContext& aPresContext,
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float aPixToTwip,
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nscoord aInnerWidth,
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nscoord aCharWidth) const
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{
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return 0;
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}
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nsresult nsFileControlFrame::RequiresWidget(PRBool& aRequiresWidget)
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{
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aRequiresWidget = PR_FALSE;
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return NS_OK;
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}
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NS_IMETHODIMP nsFileControlFrame::SetProperty(nsIAtom* aName, const nsString& aValue)
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{
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if (nsHTMLAtoms::value == aName) {
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mTextFrame->SetTextControlFrameState(aValue);
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}
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return NS_OK;
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}
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NS_IMETHODIMP nsFileControlFrame::GetProperty(nsIAtom* aName, nsString& aValue)
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{
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// Return the value of the property from the widget it is not null.
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// If widget is null, assume the widget is GFX-rendered and return a member variable instead.
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if (nsHTMLAtoms::value == aName) {
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mTextFrame->GetTextControlFrameState(aValue);
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}
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return NS_OK;
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}
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PRBool
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nsFileControlFrame::HasWidget()
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{
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PRBool hasWidget = PR_FALSE;
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nsIWidget* widget;
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mTextFrame->GetWidget(&widget);
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if (widget) {
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NS_RELEASE(widget);
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hasWidget = PR_TRUE;
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}
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return(hasWidget);
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}
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NS_METHOD
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nsFileControlFrame::Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer)
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{
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return nsAreaFrame::Paint(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
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}
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