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gecko-dev/layout/forms/nsFileControlFrame.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsFileControlFrame.h"
#include "nsIElementFactory.h"
#include "nsIContent.h"
#include "prtypes.h"
#include "nsIAtom.h"
#include "nsIPresContext.h"
#include "nsIHTMLContent.h"
#include "nsHTMLAtoms.h"
#include "nsIPresState.h"
#include "nsWidgetsCID.h"
#include "nsIComponentManager.h"
#include "nsIView.h"
#include "nsHTMLParts.h"
#include "nsIDOMHTMLInputElement.h"
#include "nsIFormControl.h"
#include "nsINameSpaceManager.h"
#include "nsCOMPtr.h"
#include "nsISupportsArray.h"
#include "nsIDOMElement.h"
#include "nsIDOMDocument.h"
#include "nsIDocument.h"
#include "nsIDOMMouseListener.h"
#include "nsIPresShell.h"
#include "nsIDOMHTMLInputElement.h"
#include "nsXPCOM.h"
#include "nsISupportsPrimitives.h"
#include "nsIComponentManager.h"
#include "nsIDOMWindowInternal.h"
#include "nsIFilePicker.h"
#include "nsIDOMMouseEvent.h"
#include "nsINodeInfo.h"
#include "nsIDOMEventReceiver.h"
#include "nsIScriptGlobalObject.h"
#include "nsILocalFile.h"
#include "nsContentCID.h"
static NS_DEFINE_CID(kHTMLElementFactoryCID, NS_HTML_ELEMENT_FACTORY_CID);
#define SYNC_TEXT 0x1
#define SYNC_BUTTON 0x2
#define SYNC_BOTH 0x3
nsresult
NS_NewFileControlFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
{
NS_PRECONDITION(aNewFrame, "null OUT ptr");
if (nsnull == aNewFrame) {
return NS_ERROR_NULL_POINTER;
}
nsFileControlFrame* it = new (aPresShell) nsFileControlFrame();
if (!it) {
return NS_ERROR_OUT_OF_MEMORY;
}
*aNewFrame = it;
return NS_OK;
}
nsFileControlFrame::nsFileControlFrame():
mTextFrame(nsnull),
mCachedState(nsnull)
{
//Shrink the area around it's contents
SetFlags(NS_BLOCK_SHRINK_WRAP);
}
nsFileControlFrame::~nsFileControlFrame()
{
// remove ourself as a listener of the button (bug 40533)
if (mBrowse) {
nsCOMPtr<nsIDOMEventReceiver> reciever(do_QueryInterface(mBrowse));
reciever->RemoveEventListenerByIID(this, NS_GET_IID(nsIDOMMouseListener));
}
if (mCachedState) {
delete mCachedState;
mCachedState = nsnull;
}
}
NS_IMETHODIMP
nsFileControlFrame::CreateAnonymousContent(nsIPresContext* aPresContext,
nsISupportsArray& aChildList)
{
// Get the NodeInfoManager and tag necessary to create input elements
nsCOMPtr<nsIDocument> doc;
mContent->GetDocument(*getter_AddRefs(doc));
nsCOMPtr<nsINodeInfoManager> nimgr;
nsresult rv = doc->GetNodeInfoManager(*getter_AddRefs(nimgr));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsINodeInfo> nodeInfo;
nimgr->GetNodeInfo(nsHTMLAtoms::input, nsnull, kNameSpaceID_None,
*getter_AddRefs(nodeInfo));
nsCOMPtr<nsIElementFactory> ef(do_CreateInstance(kHTMLElementFactoryCID,&rv));
NS_ENSURE_SUCCESS(rv, rv);
// Create the text content
rv = ef->CreateInstanceByTag(nodeInfo,getter_AddRefs(mTextContent));
NS_ENSURE_SUCCESS(rv, rv);
if (mTextContent) {
mTextContent->SetAttr(kNameSpaceID_None, nsHTMLAtoms::type, NS_LITERAL_STRING("text"), PR_FALSE);
nsCOMPtr<nsIDOMHTMLInputElement> textControl = do_QueryInterface(mTextContent);
if (textControl) {
// Initialize value when we create the content in case the value was set
// before we got here
nsCOMPtr<nsIDOMHTMLInputElement> fileContent = do_QueryInterface(mContent);
if (fileContent) {
nsAutoString value;
fileContent->GetValue(value);
textControl->SetValue(value);
}
}
aChildList.AppendElement(mTextContent);
}
// Create the browse button
rv = ef->CreateInstanceByTag(nodeInfo,getter_AddRefs(mBrowse));
NS_ENSURE_SUCCESS(rv, rv);
if (mBrowse) {
mBrowse->SetAttr(kNameSpaceID_None, nsHTMLAtoms::type, NS_LITERAL_STRING("button"), PR_FALSE);
aChildList.AppendElement(mBrowse);
// register as an event listener of the button to open file dialog on mouse click
nsCOMPtr<nsIDOMEventReceiver> receiver(do_QueryInterface(mBrowse));
receiver->AddEventListenerByIID(this, NS_GET_IID(nsIDOMMouseListener));
}
SyncAttr(kNameSpaceID_None, nsHTMLAtoms::size, SYNC_TEXT);
SyncAttr(kNameSpaceID_None, nsHTMLAtoms::disabled, SYNC_BOTH);
return NS_OK;
}
// Frames are not refcounted, no need to AddRef
NS_IMETHODIMP
nsFileControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
NS_PRECONDITION(0 != aInstancePtr, "null ptr");
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
} else if (aIID.Equals(NS_GET_IID(nsIAnonymousContentCreator))) {
*aInstancePtr = (void*)(nsIAnonymousContentCreator*) this;
return NS_OK;
} else if (aIID.Equals(NS_GET_IID(nsIFormControlFrame))) {
*aInstancePtr = (void*) ((nsIFormControlFrame*) this);
return NS_OK;
} else if (aIID.Equals(NS_GET_IID(nsIDOMMouseListener))) {
*aInstancePtr = (void*)(nsIDOMMouseListener*) this;
return NS_OK;
}
return nsHTMLContainerFrame::QueryInterface(aIID, aInstancePtr);
}
NS_IMETHODIMP
nsFileControlFrame::GetType(PRInt32* aType) const
{
*aType = NS_FORM_INPUT_FILE;
return NS_OK;
}
void
nsFileControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
{
// Fix for Bug 6133
if (mTextFrame) {
nsCOMPtr<nsIContent> content;
mTextFrame->GetContent(getter_AddRefs(content));
if (content) {
content->SetFocus(mPresContext);
}
}
}
void
nsFileControlFrame::ScrollIntoView(nsIPresContext* aPresContext)
{
if (aPresContext) {
nsCOMPtr<nsIPresShell> presShell;
aPresContext->GetShell(getter_AddRefs(presShell));
if (presShell) {
presShell->ScrollFrameIntoView(this,
NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE,NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE);
}
}
}
/**
* This is called when our browse button is clicked
*/
nsresult
nsFileControlFrame::MouseClick(nsIDOMEvent* aMouseEvent)
{
// only allow the left button
nsCOMPtr<nsIDOMMouseEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (mouseEvent) {
PRUint16 whichButton;
if (NS_SUCCEEDED(mouseEvent->GetButton(&whichButton))) {
if (whichButton != 0) {
return NS_OK;
}
}
}
nsresult result;
// Get parent nsIDOMWindowInternal object.
nsCOMPtr<nsIContent> content;
result = GetContent(getter_AddRefs(content));
if (!content)
return NS_FAILED(result) ? result : NS_ERROR_FAILURE;
nsCOMPtr<nsIDocument> doc;
result = content->GetDocument(*getter_AddRefs(doc));
if (!doc)
return NS_FAILED(result) ? result : NS_ERROR_FAILURE;
nsCOMPtr<nsIScriptGlobalObject> scriptGlobalObject;
result = doc->GetScriptGlobalObject(getter_AddRefs(scriptGlobalObject));
if (!scriptGlobalObject)
return NS_FAILED(result) ? result : NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMWindowInternal> parentWindow = do_QueryInterface(scriptGlobalObject);
if (!parentWindow)
return NS_ERROR_FAILURE;
// Get Loc title
nsString title;
nsFormControlHelper::GetLocalizedString(nsFormControlHelper::GetHTMLPropertiesFileName(),
NS_LITERAL_STRING("FileUpload").get(), title);
nsCOMPtr<nsIFilePicker> filePicker = do_CreateInstance("@mozilla.org/filepicker;1");
if (!filePicker)
return NS_ERROR_FAILURE;
result = filePicker->Init(parentWindow, title.get(), nsIFilePicker::modeOpen);
if (NS_FAILED(result))
return result;
// Set filter "All Files"
filePicker->AppendFilters(nsIFilePicker::filterAll);
// Set default directry and filename
nsAutoString defaultName;
GetProperty(nsHTMLAtoms::value, defaultName);
nsCOMPtr<nsILocalFile> currentFile = do_CreateInstance("@mozilla.org/file/local;1");
if (currentFile && !defaultName.IsEmpty()) {
result = currentFile->InitWithPath(defaultName);
if (NS_SUCCEEDED(result)) {
nsAutoString leafName;
currentFile->GetLeafName(leafName);
if (!leafName.IsEmpty()) {
filePicker->SetDefaultString(leafName.get());
}
// set directory
nsCOMPtr<nsIFile> parentFile;
currentFile->GetParent(getter_AddRefs(parentFile));
if (parentFile) {
nsCOMPtr<nsILocalFile> parentLocalFile = do_QueryInterface(parentFile, &result);
if (parentLocalFile)
filePicker->SetDisplayDirectory(parentLocalFile);
}
}
}
// Open dialog
PRInt16 mode;
result = filePicker->Show(&mode);
if (NS_FAILED(result))
return result;
if (mode == nsIFilePicker::returnCancel)
return NS_OK;
// Set property
nsCOMPtr<nsILocalFile> localFile;
result = filePicker->GetFile(getter_AddRefs(localFile));
if (localFile) {
nsAutoString unicodePath;
result = localFile->GetPath(unicodePath);
if (!unicodePath.IsEmpty()) {
mTextFrame->SetProperty(mPresContext, nsHTMLAtoms::value, unicodePath);
return NS_OK;
}
}
return NS_FAILED(result) ? result : NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsFileControlFrame::Reflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsFileControlFrame", aReflowState.reason);
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
aStatus = NS_FRAME_COMPLETE;
if (eReflowReason_Initial == aReflowState.reason) {
mTextFrame = GetTextControlFrame(aPresContext, this);
if (!mTextFrame) return NS_ERROR_UNEXPECTED;
if (mCachedState) {
mTextFrame->SetProperty(aPresContext, nsHTMLAtoms::value, *mCachedState);
delete mCachedState;
mCachedState = nsnull;
}
}
// The Areaframe takes care of all our reflow
// except for when style is used to change its size.
nsresult rv = nsAreaFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
if (NS_SUCCEEDED(rv) && mTextFrame != nsnull) {
const nsStyleVisibility* vis;
GetStyleData(eStyleStruct_Visibility, (const nsStyleStruct*&)vis);
nsIFrame * child;
FirstChild(aPresContext, nsnull, &child);
while (child == mTextFrame) {
child->GetNextSibling(&child);
}
if (child != nsnull) {
nsRect buttonRect;
nsRect txtRect;
mTextFrame->GetRect(txtRect);
child->GetRect(buttonRect);
// check to see if we must reflow just the area frame again
// in order for the text field to be the correct height
// reflowing just the textfield (for some reason)
// messes up the button's rect
if (txtRect.width + buttonRect.width != aDesiredSize.width ||
txtRect.height != aDesiredSize.height) {
nsSize txtAvailSize(aReflowState.availableWidth, aDesiredSize.height);
nsHTMLReflowMetrics txtKidSize(&txtAvailSize);
nsHTMLReflowState txtKidReflowState(aPresContext, aReflowState, this, txtAvailSize,
eReflowReason_Resize);
txtKidReflowState.mComputedHeight = aDesiredSize.height;
rv = nsAreaFrame::WillReflow(aPresContext);
NS_ASSERTION(NS_SUCCEEDED(rv), "Should have succeeded");
rv = nsAreaFrame::Reflow(aPresContext, txtKidSize, txtKidReflowState, aStatus);
NS_ASSERTION(NS_SUCCEEDED(rv), "Should have succeeded");
rv = nsAreaFrame::DidReflow(aPresContext, &txtKidReflowState, aStatus);
NS_ASSERTION(NS_SUCCEEDED(rv), "Should have succeeded");
// If LTR then re-calc and set the correct rect
if (NS_STYLE_DIRECTION_RTL != vis->mDirection) {
// now adjust the frame positions
txtRect.y = aReflowState.mComputedBorderPadding.top;
txtRect.height = aDesiredSize.height;
mTextFrame->SetRect(aPresContext, txtRect);
}
}
// Do RTL positioning
// for some reason the areaframe does set the X coord of the rects correctly
// so we must redo them here
// and we must make sure the text field is the correct height
if (NS_STYLE_DIRECTION_RTL == vis->mDirection) {
buttonRect.x = aReflowState.mComputedBorderPadding.left;
child->SetRect(aPresContext, buttonRect);
txtRect.x = aDesiredSize.width - txtRect.width + aReflowState.mComputedBorderPadding.left;
txtRect.y = aReflowState.mComputedBorderPadding.top;
txtRect.height = aDesiredSize.height;
mTextFrame->SetRect(aPresContext, txtRect);
}
}
}
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
return rv;
}
/*
NS_IMETHODIMP
nsFileControlFrame::SetInitialChildList(nsIPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList)
{
nsresult r = nsAreaFrame::SetInitialChildList(aPresContext, aListName, aChildList);
// given that the CSS frame constuctor created all our frames. We need to find the text field
// so we can get info from it.
mTextFrame = GetTextControlFrame(this);
}
*/
nsNewFrame*
nsFileControlFrame::GetTextControlFrame(nsIPresContext* aPresContext, nsIFrame* aStart)
{
nsNewFrame* result = nsnull;
#ifndef DEBUG_NEWFRAME
// find the text control frame.
nsIFrame* childFrame = nsnull;
aStart->FirstChild(aPresContext, nsnull, &childFrame);
while (childFrame) {
// see if the child is a text control
nsCOMPtr<nsIContent> content;
nsresult res = childFrame->GetContent(getter_AddRefs(content));
if (NS_SUCCEEDED(res) && content) {
nsCOMPtr<nsIAtom> atom;
res = content->GetTag(*getter_AddRefs(atom));
if (NS_SUCCEEDED(res) && atom) {
if (atom.get() == nsHTMLAtoms::input) {
// It's an input, is it a text input?
nsAutoString value;
if (NS_CONTENT_ATTR_HAS_VALUE == content->GetAttr(kNameSpaceID_None, nsHTMLAtoms::type, value)) {
if (value.EqualsIgnoreCase("text")) {
result = (nsNewFrame*)childFrame;
}
}
}
}
}
// if not continue looking
nsNewFrame* frame = GetTextControlFrame(aPresContext, childFrame);
if (frame)
result = frame;
res = childFrame->GetNextSibling(&childFrame);
NS_ASSERTION(res == NS_OK,"failed to get next child");
}
return result;
#else
return nsnull;
#endif
}
PRIntn
nsFileControlFrame::GetSkipSides() const
{
return 0;
}
NS_IMETHODIMP
nsFileControlFrame::GetName(nsAString* aResult)
{
return nsFormControlHelper::GetName(mContent, aResult);
}
void
nsFileControlFrame::SyncAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
PRInt32 aWhichControls)
{
nsAutoString value;
nsresult rv = mContent->GetAttr(aNameSpaceID, aAttribute, value);
if (rv == NS_CONTENT_ATTR_HAS_VALUE) {
if (aWhichControls & SYNC_TEXT && mTextContent) {
mTextContent->SetAttr(aNameSpaceID, aAttribute, value, PR_TRUE);
}
if (aWhichControls & SYNC_BUTTON && mBrowse) {
mBrowse->SetAttr(aNameSpaceID, aAttribute, value, PR_TRUE);
}
} else {
if (aWhichControls & SYNC_TEXT && mTextContent) {
mTextContent->UnsetAttr(aNameSpaceID, aAttribute, PR_TRUE);
}
if (aWhichControls & SYNC_BUTTON && mBrowse) {
mBrowse->UnsetAttr(aNameSpaceID, aAttribute, PR_TRUE);
}
}
}
NS_IMETHODIMP
nsFileControlFrame::AttributeChanged(nsIPresContext* aPresContext,
nsIContent* aChild,
PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aModType,
PRInt32 aHint)
{
// propagate disabled to text / button inputs
if (aNameSpaceID == kNameSpaceID_None &&
aAttribute == nsHTMLAtoms::disabled) {
SyncAttr(aNameSpaceID, aAttribute, SYNC_BOTH);
// propagate size to text
} else if (aNameSpaceID == kNameSpaceID_None &&
aAttribute == nsHTMLAtoms::size) {
SyncAttr(aNameSpaceID, aAttribute, SYNC_TEXT);
}
return nsAreaFrame::AttributeChanged(aPresContext, aChild, aNameSpaceID, aAttribute, aModType, aHint);
}
NS_IMETHODIMP
nsFileControlFrame::GetFrameForPoint(nsIPresContext* aPresContext,
const nsPoint& aPoint,
nsFramePaintLayer aWhichLayer,
nsIFrame** aFrame)
{
#ifndef DEBUG_NEWFRAME
if ( nsFormControlHelper::GetDisabled(mContent) && mRect.Contains(aPoint) ) {
const nsStyleVisibility* vis =
(const nsStyleVisibility*)mStyleContext->GetStyleData(eStyleStruct_Visibility);
if (vis->IsVisible()) {
*aFrame = this;
return NS_OK;
}
} else {
return nsAreaFrame::GetFrameForPoint(aPresContext, aPoint, aWhichLayer, aFrame);
}
#endif
return NS_OK;
}
#ifdef NS_DEBUG
NS_IMETHODIMP
nsFileControlFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("FileControl"), aResult);
}
#endif
NS_IMETHODIMP
nsFileControlFrame::GetFormContent(nsIContent*& aContent) const
{
nsIContent* content;
nsresult rv;
rv = GetContent(&content);
aContent = content;
return rv;
}
NS_IMETHODIMP
nsFileControlFrame::GetFont(nsIPresContext* aPresContext,
const nsFont*& aFont)
{
return nsFormControlHelper::GetFont(this, aPresContext, mStyleContext, aFont);
}
nscoord
nsFileControlFrame::GetVerticalInsidePadding(nsIPresContext* aPresContext,
float aPixToTwip,
nscoord aInnerHeight) const
{
return 0;
}
nscoord
nsFileControlFrame::GetHorizontalInsidePadding(nsIPresContext* aPresContext,
float aPixToTwip,
nscoord aInnerWidth,
nscoord aCharWidth) const
{
return 0;
}
nsresult nsFileControlFrame::RequiresWidget(PRBool& aRequiresWidget)
{
aRequiresWidget = PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP nsFileControlFrame::SetProperty(nsIPresContext* aPresContext,
nsIAtom* aName,
const nsAString& aValue)
{
nsresult rv = NS_OK;
if (nsHTMLAtoms::value == aName) {
if (mTextFrame) {
mTextFrame->SetValue(aValue);
} else {
if (mCachedState) delete mCachedState;
mCachedState = new nsString(aValue);
if (!mCachedState) rv = NS_ERROR_OUT_OF_MEMORY;
}
}
return rv;
}
NS_IMETHODIMP nsFileControlFrame::GetProperty(nsIAtom* aName, nsAString& aValue)
{
aValue.Truncate(); // initialize out param
if (nsHTMLAtoms::value == aName) {
if (mTextFrame) {
mTextFrame->GetValue(aValue, PR_FALSE);
}
else if (mCachedState) {
aValue.Assign(*mCachedState);
}
}
return NS_OK;
}
NS_METHOD
nsFileControlFrame::Paint(nsIPresContext* aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer,
PRUint32 aFlags)
{
PRBool isVisible;
if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_TRUE, &isVisible)) && !isVisible) {
return NS_OK;
}
nsresult rv = nsAreaFrame::Paint(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
if (NS_FAILED(rv)) return rv;
return nsFrame::Paint(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
}
NS_IMETHODIMP
nsFileControlFrame::OnContentReset()
{
return NS_OK;
}
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