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RetroZilla/widget/src/windows/nsFilePicker.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 the Mozilla browser.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <pavlov@netscape.com>
* Seth Spitzer <sspitzer@netscape.com>
*
* 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 MPL, 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 MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsCOMPtr.h"
#include "nsGUIEvent.h"
#include "nsReadableUtils.h"
#include "nsNetUtil.h"
#include "nsWindow.h"
#include "nsIServiceManager.h"
#include "nsIPlatformCharset.h"
#include "nsICharsetConverterManager.h"
#include "nsFilePicker.h"
#include "nsILocalFile.h"
#include "nsIURL.h"
#include "nsIFileURL.h"
#include "nsIStringBundle.h"
#include "nsNativeCharsetUtils.h"
#include "nsEnumeratorUtils.h"
#include "nsCRT.h"
#include <windows.h>
#include <shlobj.h>
// commdlg.h and cderr.h are needed to build with WIN32_LEAN_AND_MEAN
#include <commdlg.h>
#ifndef WINCE
#include <cderr.h>
#endif
#include "nsString.h"
#include "nsToolkit.h"
static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID);
NS_IMPL_ISUPPORTS1(nsFilePicker, nsIFilePicker)
nsString nsFilePicker::mLastUsedUnicodeDirectory;
char nsFilePicker::mLastUsedDirectory[MAX_PATH+1] = { 0 };
#define MAX_EXTENSION_LENGTH 10
#ifndef BIF_USENEWUI
// BIF_USENEWUI isn't defined in the platform SDK that comes with
// MSVC6.0.
#define BIF_USENEWUI 0x50
#endif
//-------------------------------------------------------------------------
//
// nsFilePicker constructor
//
//-------------------------------------------------------------------------
nsFilePicker::nsFilePicker()
{
mSelectedType = 1;
mWinVer = GetVersion() & 0xFF;
}
//-------------------------------------------------------------------------
//
// nsFilePicker destructor
//
//-------------------------------------------------------------------------
nsFilePicker::~nsFilePicker()
{
}
//-------------------------------------------------------------------------
//
// Show - Display the file dialog
//
//-------------------------------------------------------------------------
#ifndef WINCE
int CALLBACK BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM lpData)
{
if (uMsg == BFFM_INITIALIZED)
{
char * filePath = (char *) lpData;
if (filePath)
{
::SendMessage(hwnd, BFFM_SETSELECTION, TRUE /* true because lpData is a path string */, lpData);
nsCRT::free(filePath);
}
}
return 0;
}
#endif
NS_IMETHODIMP nsFilePicker::ShowW(PRInt16 *aReturnVal)
{
NS_ENSURE_ARG_POINTER(aReturnVal);
// suppress blur events
if (mParentWidget) {
nsIWidget *tmp = mParentWidget;
nsWindow *parent = NS_STATIC_CAST(nsWindow *, tmp);
parent->SuppressBlurEvents(PR_TRUE);
}
PRBool result = PR_FALSE;
PRUnichar fileBuffer[FILE_BUFFER_SIZE+1];
wcsncpy(fileBuffer, mDefault.get(), FILE_BUFFER_SIZE);
fileBuffer[FILE_BUFFER_SIZE] = '\0'; // null terminate in case copy truncated
NS_NAMED_LITERAL_STRING(htmExt, "html");
nsAutoString initialDir;
if (mDisplayDirectory)
mDisplayDirectory->GetPath(initialDir);
// If no display directory, re-use the last one.
if(initialDir.IsEmpty()) {
// Allocate copy of last used dir.
initialDir = mLastUsedUnicodeDirectory;
}
mUnicodeFile.Truncate();
#ifndef WINCE
if (mMode == modeGetFolder && mWinVer > 3) {
PRUnichar dirBuffer[MAX_PATH+1];
wcsncpy(dirBuffer, initialDir.get(), MAX_PATH);
BROWSEINFOW browserInfo;
browserInfo.hwndOwner = (HWND)
(mParentWidget.get() ? mParentWidget->GetNativeData(NS_NATIVE_WINDOW) : 0);
browserInfo.pidlRoot = nsnull;
browserInfo.pszDisplayName = (LPWSTR)dirBuffer;
browserInfo.lpszTitle = mTitle.get();
browserInfo.ulFlags = BIF_USENEWUI | BIF_RETURNONLYFSDIRS;
if (initialDir.Length()) // convert folder path to native, the strdup copy will be released in BrowseCallbackProc
{
nsCAutoString nativeFolderPath;
NS_CopyUnicodeToNative(initialDir, nativeFolderPath);
browserInfo.lParam = (LPARAM) nsCRT::strdup(nativeFolderPath.get());
browserInfo.lpfn = &BrowseCallbackProc;
}
else
{
browserInfo.lParam = nsnull;
browserInfo.lpfn = nsnull;
}
browserInfo.iImage = nsnull;
// XXX UNICODE support is needed here --> DONE
LPITEMIDLIST list = nsToolkit::mSHBrowseForFolder(&browserInfo);
if (list != NULL) {
result = nsToolkit::mSHGetPathFromIDList(list, (LPWSTR)fileBuffer);
if (result) {
mUnicodeFile.Assign(fileBuffer);
}
// free PIDL
CoTaskMemFree(list);
}
}
else
#endif // WINCE
{
OPENFILENAMEW ofn;
memset(&ofn, 0, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
nsString filterBuffer = mFilterList;
if (!initialDir.IsEmpty()) {
ofn.lpstrInitialDir = initialDir.get();
}
ofn.lpstrTitle = (LPCWSTR)mTitle.get();
ofn.lpstrFilter = (LPCWSTR)filterBuffer.get();
ofn.nFilterIndex = mSelectedType;
ofn.hwndOwner = (HWND)
(mParentWidget.get() ? mParentWidget->GetNativeData(NS_NATIVE_WINDOW) : 0);
ofn.lpstrFile = fileBuffer;
ofn.nMaxFile = FILE_BUFFER_SIZE;
ofn.Flags = OFN_NOCHANGEDIR | OFN_SHAREAWARE | OFN_LONGNAMES | OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_PATHMUSTEXIST;
if (!mDefaultExtension.IsEmpty()) {
ofn.lpstrDefExt = mDefaultExtension.get();
}
else {
// Get file extension from suggested filename
// to detect if we are saving an html file
//XXX: nsIFile SHOULD HAVE A GetExtension() METHOD!
PRInt32 extIndex = mDefault.RFind(".");
if ( extIndex >= 0) {
nsAutoString ext;
mDefault.Right(ext, mDefault.Length() - extIndex);
// Should we test for ".cgi", ".asp", ".jsp" and other
// "generated" html pages?
if ( ext.LowerCaseEqualsLiteral(".htm") ||
ext.LowerCaseEqualsLiteral(".html") ||
ext.LowerCaseEqualsLiteral(".shtml") ) {
// This is supposed to append ".htm" if user doesn't supply an extension
//XXX Actually, behavior is sort of weird:
// often appends ".html" even if you have an extension
// It obeys your extension if you put quotes around name
ofn.lpstrDefExt = htmExt.get();
}
}
}
#ifndef WINCE
try {
#endif
if (mMode == modeOpen || mMode == modeGetFolder) {
// FILE MUST EXIST!
if(mMode == modeOpen) ofn.Flags |= OFN_FILEMUSTEXIST;
else {
fileBuffer[0]='t'; fileBuffer[1]='h'; fileBuffer[2]='i'; fileBuffer[3]='s';
fileBuffer[4]='D'; fileBuffer[5]='i'; fileBuffer[6]='r';
}
result = nsToolkit::mGetOpenFileName(&ofn);
}
else if (mMode == modeOpenMultiple) {
ofn.Flags |= OFN_FILEMUSTEXIST | OFN_ALLOWMULTISELECT | (mWinVer > 3 ? OFN_EXPLORER : 0);
result = nsToolkit::mGetOpenFileName(&ofn);
}
else if (mMode == modeSave) {
ofn.Flags |= OFN_NOREADONLYRETURN;
// Don't follow shortcuts when saving a shortcut, this can be used
// to trick users (bug 271732)
NS_ConvertUTF16toUTF8 ext(mDefault);
ext.Trim(" .", PR_FALSE, PR_TRUE); // watch out for trailing space and dots
ToLowerCase(ext);
if (StringEndsWith(ext, NS_LITERAL_CSTRING(".lnk")) ||
StringEndsWith(ext, NS_LITERAL_CSTRING(".pif")) ||
StringEndsWith(ext, NS_LITERAL_CSTRING(".url")))
ofn.Flags |= OFN_NODEREFERENCELINKS;
result = nsToolkit::mGetSaveFileName(&ofn);
if (!result) {
// Error, find out what kind.
if (::GetLastError() == ERROR_INVALID_PARAMETER ||
::CommDlgExtendedError() == FNERR_INVALIDFILENAME) {
// probably the default file name is too long or contains illegal characters!
// Try again, without a starting file name.
ofn.lpstrFile[0] = 0;
result = nsToolkit::mGetSaveFileName(&ofn);
}
}
}
else {
NS_ASSERTION(0, "unsupported mode");
}
#ifndef WINCE
}
catch(...) {
MessageBox(ofn.hwndOwner,
0,
"The filepicker was unexpectedly closed by Windows.",
MB_ICONERROR);
result = PR_FALSE;
}
#endif
if (result == PR_TRUE) {
// Remember what filter type the user selected
mSelectedType = (PRInt16)ofn.nFilterIndex;
// Set user-selected location of file or directory
if (mMode == modeOpenMultiple) {
nsresult rv = NS_NewISupportsArray(getter_AddRefs(mFiles));
NS_ENSURE_SUCCESS(rv,rv);
// from msdn.microsoft.com, "Open and Save As Dialog Boxes" section:
// If you specify OFN_EXPLORER,
// The directory and file name strings are NULL separated,
// with an extra NULL character after the last file name.
// This format enables the Explorer-style dialog boxes
// to return long file names that include spaces.
PRUnichar *current = fileBuffer;
nsAutoString dirName(current);
// sometimes dirName contains a trailing slash
// and sometimes it doesn't.
if (current[dirName.Length() - 1] != '\\')
dirName.Append((PRUnichar)'\\');
while (current && *current && *(current + nsCRT::strlen(current) + 1)) {
current = current + nsCRT::strlen(current) + 1;
nsCOMPtr<nsILocalFile> file = do_CreateInstance("@mozilla.org/file/local;1", &rv);
NS_ENSURE_SUCCESS(rv,rv);
rv = file->InitWithPath(dirName + nsDependentString(current));
NS_ENSURE_SUCCESS(rv,rv);
rv = mFiles->AppendElement(file);
NS_ENSURE_SUCCESS(rv,rv);
}
// handle the case where the user selected just one
// file. according to msdn.microsoft.com:
// If you specify OFN_ALLOWMULTISELECT and the user selects
// only one file, the lpstrFile string does not have
// a separator between the path and file name.
if (current && *current && (current == fileBuffer)) {
nsCOMPtr<nsILocalFile> file = do_CreateInstance("@mozilla.org/file/local;1", &rv);
NS_ENSURE_SUCCESS(rv,rv);
rv = file->InitWithPath(nsDependentString(current));
NS_ENSURE_SUCCESS(rv,rv);
rv = mFiles->AppendElement(file);
NS_ENSURE_SUCCESS(rv,rv);
}
}
else {
// Get DirPath from Full Pathname
if(mMode == modeGetFolder) {
int cnt;
nsAutoString dirName(fileBuffer);
for(cnt=dirName.Length()-1;cnt > 1; cnt--) {
if (fileBuffer[cnt] == '\\') {
fileBuffer[cnt] = 0;
break;
}
}
}
// I think it also needs a conversion here (to unicode since appending to nsString)
// but doing that generates garbage file name, weird.
mUnicodeFile.Assign(fileBuffer);
}
}
}
if (result) {
PRInt16 returnOKorReplace = returnOK;
// Remember last used directory.
nsCOMPtr<nsILocalFile> file(do_CreateInstance("@mozilla.org/file/local;1"));
NS_ENSURE_TRUE(file, NS_ERROR_FAILURE);
// XXX InitWithPath() will convert UCS2 to FS path !!! corrupts unicode
file->InitWithPath(mUnicodeFile);
nsCOMPtr<nsIFile> dir;
if (NS_SUCCEEDED(file->GetParent(getter_AddRefs(dir)))) {
mDisplayDirectory = do_QueryInterface(dir);
if (mDisplayDirectory) {
nsAutoString newDir;
mDisplayDirectory->GetPath(newDir);
if(!newDir.IsEmpty())
mLastUsedUnicodeDirectory.Assign(newDir);
}
}
if (mMode == modeSave) {
// Windows does not return resultReplace,
// we must check if file already exists
PRBool exists = PR_FALSE;
file->Exists(&exists);
if (exists)
returnOKorReplace = returnReplace;
}
*aReturnVal = returnOKorReplace;
}
else {
*aReturnVal = returnCancel;
}
if (mParentWidget) {
nsIWidget *tmp = mParentWidget;
nsWindow *parent = NS_STATIC_CAST(nsWindow *, tmp);
parent->SuppressBlurEvents(PR_FALSE);
}
return NS_OK;
}
NS_IMETHODIMP nsFilePicker::Show(PRInt16 *aReturnVal)
{
return ShowW(aReturnVal);
}
NS_IMETHODIMP nsFilePicker::GetFile(nsILocalFile **aFile)
{
NS_ENSURE_ARG_POINTER(aFile);
if (mUnicodeFile.IsEmpty())
return NS_OK;
nsCOMPtr<nsILocalFile> file(do_CreateInstance("@mozilla.org/file/local;1"));
NS_ENSURE_TRUE(file, NS_ERROR_FAILURE);
file->InitWithPath(mUnicodeFile);
NS_ADDREF(*aFile = file);
return NS_OK;
}
//-------------------------------------------------------------------------
NS_IMETHODIMP nsFilePicker::GetFileURL(nsIFileURL **aFileURL)
{
nsCOMPtr<nsILocalFile> file(do_CreateInstance("@mozilla.org/file/local;1"));
NS_ENSURE_TRUE(file, NS_ERROR_FAILURE);
file->InitWithPath(mUnicodeFile);
nsCOMPtr<nsIURI> uri;
NS_NewFileURI(getter_AddRefs(uri), file);
nsCOMPtr<nsIFileURL> fileURL(do_QueryInterface(uri));
NS_ENSURE_TRUE(fileURL, NS_ERROR_FAILURE);
NS_ADDREF(*aFileURL = fileURL);
return NS_OK;
}
NS_IMETHODIMP nsFilePicker::GetFiles(nsISimpleEnumerator **aFiles)
{
NS_ENSURE_ARG_POINTER(aFiles);
return NS_NewArrayEnumerator(aFiles, mFiles);
}
//-------------------------------------------------------------------------
//
// Get the file + path
//
//-------------------------------------------------------------------------
NS_IMETHODIMP nsFilePicker::SetDefaultString(const nsAString& aString)
{
mDefault = aString;
//First, make sure the file name is not too long!
PRInt32 nameLength;
PRInt32 nameIndex = mDefault.RFind("\\");
if (nameIndex == kNotFound)
nameIndex = 0;
else
nameIndex ++;
nameLength = mDefault.Length() - nameIndex;
if (nameLength > _MAX_FNAME) {
PRInt32 extIndex = mDefault.RFind(".");
if (extIndex == kNotFound)
extIndex = mDefault.Length();
//Let's try to shave the needed characters from the name part
PRInt32 charsToRemove = nameLength - _MAX_FNAME;
if (extIndex - nameIndex >= charsToRemove) {
mDefault.Cut(extIndex - charsToRemove, charsToRemove);
}
}
//Then, we need to replace illegal characters.
//At this stage, we cannot replace the backslash as the string might represent a file path.
mDefault.ReplaceChar(FILE_ILLEGAL_CHARACTERS, '-');
return NS_OK;
}
NS_IMETHODIMP nsFilePicker::GetDefaultString(nsAString& aString)
{
return NS_ERROR_FAILURE;
}
//-------------------------------------------------------------------------
//
// The default extension to use for files
//
//-------------------------------------------------------------------------
NS_IMETHODIMP nsFilePicker::GetDefaultExtension(nsAString& aExtension)
{
aExtension = mDefaultExtension;
return NS_OK;
}
NS_IMETHODIMP nsFilePicker::SetDefaultExtension(const nsAString& aExtension)
{
mDefaultExtension = aExtension;
return NS_OK;
}
//-------------------------------------------------------------------------
//
// Set the filter index
//
//-------------------------------------------------------------------------
NS_IMETHODIMP nsFilePicker::GetFilterIndex(PRInt32 *aFilterIndex)
{
// Windows' filter index is 1-based, we use a 0-based system.
*aFilterIndex = mSelectedType - 1;
return NS_OK;
}
NS_IMETHODIMP nsFilePicker::SetFilterIndex(PRInt32 aFilterIndex)
{
// Windows' filter index is 1-based, we use a 0-based system.
mSelectedType = aFilterIndex + 1;
return NS_OK;
}
//-------------------------------------------------------------------------
void nsFilePicker::InitNative(nsIWidget *aParent,
const nsAString& aTitle,
PRInt16 aMode)
{
mParentWidget = aParent;
mTitle.Assign(aTitle);
mMode = aMode;
}
NS_IMETHODIMP
nsFilePicker::AppendFilter(const nsAString& aTitle, const nsAString& aFilter)
{
mFilterList.Append(aTitle);
mFilterList.Append(PRUnichar('\0'));
if (aFilter.EqualsLiteral("..apps"))
mFilterList.AppendLiteral("*.exe;*.com");
else
{
nsAutoString filter(aFilter);
filter.StripWhitespace();
if (filter.EqualsLiteral("*"))
filter.AppendLiteral(".*");
mFilterList.Append(filter);
}
mFilterList.Append(PRUnichar('\0'));
return NS_OK;
}
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