//===== Copyright ?1996-2005, Valve Corporation, All rights reserved. ======//
//
// Purpose: Implementation of vgui generic open file dialog
//
// $NoKeywords: $
//===========================================================================//


#define PROTECTED_THINGS_DISABLE

#if !defined( _X360 )
#include "winlite.h"
#include <shellapi.h>
#endif
#undef GetCurrentDirectory
#include "filesystem.h"

#include "tier1/utldict.h"
#include "tier1/utlstring.h"

#include <vgui/IScheme.h>
#include <vgui/ISurface.h>
#include <vgui/ISystem.h>
#include <KeyValues.h>
#include <vgui/IVGui.h>
#include <vgui/ILocalize.h>
#include <vgui/IInput.h>

#include <vgui_controls/FileOpenDialog.h>

#include <vgui_controls/Button.h>
#include <vgui_controls/ComboBox.h>
#include <vgui_controls/ImagePanel.h>
#include <vgui_controls/InputDialog.h>
#include <vgui_controls/Label.h>
#include <vgui_controls/ListPanel.h>
#include <vgui_controls/TextEntry.h>
#include <vgui_controls/ImageList.h>
#include <vgui_controls/MenuItem.h>
#include <vgui_controls/Tooltip.h>

#include "cmd.h"

#if defined( _X360 )
#include "xbox/xbox_win32stubs.h"
#undef GetCurrentDirectory
#endif

// memdbgon must be the last include file in a .cpp file!!!
#include <tier0/memdbgon.h>

using namespace vgui;

#ifndef _WIN32
#error "This class is WIN32 specific, please port me"

#else

static int s_nLastSortColumn = 0;

static int ListFileNameSortFunc(ListPanel *pPanel, const ListPanelItem &item1, const ListPanelItem &item2 )
{
	NOTE_UNUSED( pPanel );

	bool dir1 = item1.kv->GetInt("directory") == 1;
	bool dir2 = item2.kv->GetInt("directory") == 1;

	// if they're both not directories of files, return if dir1 is a directory (before files)
	if (dir1 != dir2)
	{
		return dir1 ? -1 : 1;
	}

	const char *string1 = item1.kv->GetString("text");
	const char *string2 = item2.kv->GetString("text");

	// YWB:  Mimic windows behavior where filenames starting with numbers are sorted based on numeric part
	int num1 = Q_atoi( string1 );
	int num2 = Q_atoi( string2 );

	if ( num1 != 0 && 
		 num2 != 0 )
	{
		if ( num1 < num2 )
			return -1;
		else if ( num1 > num2 )
			return 1;
	}

	// Push numbers before everything else
	if ( num1 != 0 )
	{
		return -1;
	}
	
	// Push numbers before everything else
	if ( num2 != 0 )
	{
		return 1;
	}

	return Q_stricmp( string1, string2 );
}

static int ListBaseStringSortFunc(ListPanel *pPanel, const ListPanelItem &item1, const ListPanelItem &item2, char const *fieldName )
{
	bool dir1 = item1.kv->GetInt("directory") == 1;
	bool dir2 = item2.kv->GetInt("directory") == 1;

	// if they're both not directories of files, return if dir1 is a directory (before files)
	if (dir1 != dir2)
	{
		return -1;
	}

	const char *string1 = item1.kv->GetString(fieldName);
	const char *string2 = item2.kv->GetString(fieldName);
	int cval = Q_stricmp(string1, string2);
	if ( cval == 0 )
	{
		// Use filename to break ties
		return ListFileNameSortFunc( pPanel, item1, item2 );
	}

	return cval;
}

static int ListBaseIntegerSortFunc(ListPanel *pPanel, const ListPanelItem &item1, const ListPanelItem &item2, char const *fieldName )
{
	bool dir1 = item1.kv->GetInt("directory") == 1;
	bool dir2 = item2.kv->GetInt("directory") == 1;

	// if they're both not directories of files, return if dir1 is a directory (before files)
	if (dir1 != dir2)
	{
		return -1;
	}

	int i1 = item1.kv->GetInt(fieldName);
	int i2 = item2.kv->GetInt(fieldName);
	if ( i1 == i2 )
	{
		// Use filename to break ties
		return ListFileNameSortFunc( pPanel, item1, item2 );
	}

	return ( i1 < i2 ) ? -1 : 1;
}

static int ListBaseInteger64SortFunc(ListPanel *pPanel, const ListPanelItem &item1, const ListPanelItem &item2, char const *lowfield, char const *highfield )
{
	bool dir1 = item1.kv->GetInt("directory") == 1;
	bool dir2 = item2.kv->GetInt("directory") == 1;

	// if they're both not directories of files, return if dir1 is a directory (before files)
	if (dir1 != dir2)
	{
		return dir1 ? -1 : 1;
	}

	uint32 l1 = item1.kv->GetInt(lowfield);
	uint32 h1 = item1.kv->GetInt(highfield);
	uint32 l2 = item2.kv->GetInt(lowfield);
	uint32 h2 = item2.kv->GetInt(highfield);
	uint64 i1 = (uint64)( (uint64)l1 | ( (uint64)h1 << 32 ) );
	uint64 i2 = (uint64)( (uint64)l2 | ( (uint64)h2 << 32 ) );

	if ( i1 == i2 )
	{
		// Use filename to break ties
		return ListFileNameSortFunc( pPanel, item1, item2 );
	}

	return ( i1 < i2 ) ? -1 : 1;
}


static int ListFileSizeSortFunc(ListPanel *pPanel, const ListPanelItem &item1, const ListPanelItem &item2 )
{
	return ListBaseIntegerSortFunc( pPanel, item1, item2, "filesizeint" );
}

static int ListFileModifiedSortFunc(ListPanel *pPanel, const ListPanelItem &item1, const ListPanelItem &item2 )
{
	// NOTE: Backward order to get most recent files first
	return ListBaseInteger64SortFunc( pPanel, item2, item1, "modifiedint_low", "modifiedint_high" );
}
static int ListFileCreatedSortFunc(ListPanel *pPanel, const ListPanelItem &item1, const ListPanelItem &item2 )
{
	// NOTE: Backward order to get most recent files first
	return ListBaseInteger64SortFunc( pPanel, item2, item1, "createdint_low", "createdint_high" );
}
static int ListFileAttributesSortFunc(ListPanel *pPanel, const ListPanelItem &item1, const ListPanelItem &item2 )
{
	return ListBaseStringSortFunc( pPanel, item1, item2, "attributes" );
}
static int ListFileTypeSortFunc(ListPanel *pPanel, const ListPanelItem &item1, const ListPanelItem &item2 )
{
	return ListBaseStringSortFunc( pPanel, item1, item2, "type" );
}



namespace vgui
{

class FileCompletionMenu : public Menu
{
public:
	FileCompletionMenu(Panel *parent, const char *panelName) : Menu(parent, panelName)
	{
	}

	// override it so it doesn't request focus
	virtual void SetVisible(bool state)
	{
		Panel::SetVisible(state);
	}

};


//-----------------------------------------------------------------------------
// File completion edit text entry
//-----------------------------------------------------------------------------
class FileCompletionEdit : public TextEntry
{
	DECLARE_CLASS_SIMPLE( FileCompletionEdit, TextEntry );

public:
	FileCompletionEdit(Panel *parent);
    ~FileCompletionEdit();

	int AddItem(const char *itemText, KeyValues *userData);
	int AddItem(const wchar_t *itemText, KeyValues *userData);
	void DeleteAllItems();
	int GetItemCount();
	int GetItemIDFromRow(int row);
	int GetRowFromItemID(int itemID);
	virtual void PerformLayout();
	void OnSetText(const wchar_t *newtext);
	virtual void OnKillFocus();
	void HideMenu(void);
	void ShowMenu(void);
	virtual void OnKeyCodeTyped(KeyCode code);
	MESSAGE_FUNC_INT( OnMenuItemHighlight, "MenuItemHighlight", itemID );

private:
	FileCompletionMenu *m_pDropDown;
};



FileCompletionEdit::FileCompletionEdit(Panel *parent) : TextEntry(parent, NULL)
{
	m_pDropDown = new FileCompletionMenu(this, NULL);
	m_pDropDown->AddActionSignalTarget(this);
}

FileCompletionEdit::~FileCompletionEdit()
{
	delete m_pDropDown;
}

int FileCompletionEdit::AddItem(const char *itemText, KeyValues *userData)
{
	// when the menu item is selected it will send the custom message "SetText"
	return m_pDropDown->AddMenuItem(itemText, new KeyValues("SetText", "text", itemText), this, userData);
}
int FileCompletionEdit::AddItem(const wchar_t *itemText, KeyValues *userData)
{
	// add the element to the menu
	// when the menu item is selected it will send the custom message "SetText"
	KeyValues *kv = new KeyValues("SetText");
	kv->SetWString("text", itemText);

	// get an ansi version for the menuitem name
	char ansi[128];
	g_pVGuiLocalize->ConvertUnicodeToANSI(itemText, ansi, sizeof(ansi));
	return m_pDropDown->AddMenuItem(ansi, kv, this, userData);
}

void FileCompletionEdit::DeleteAllItems()
{
	m_pDropDown->DeleteAllItems();
}

int FileCompletionEdit::GetItemCount()
{
	return m_pDropDown->GetItemCount();
}

int FileCompletionEdit::GetItemIDFromRow(int row)
{
	// valid from [0, GetItemCount)
	return m_pDropDown->GetMenuID(row);
}

int FileCompletionEdit::GetRowFromItemID(int itemID)
{
	int i;
	for (i=0;i<GetItemCount();i++)
	{
		if (m_pDropDown->GetMenuID(i) == itemID)
			return i;
	}
	return -1;
}

void FileCompletionEdit::PerformLayout()
{
	BaseClass::PerformLayout();

	m_pDropDown->PositionRelativeToPanel( this, Menu::DOWN, 0 );

	// reset the width of the drop down menu to be the width of this edit box
	m_pDropDown->SetFixedWidth(GetWide());
	m_pDropDown->ForceCalculateWidth();
}

void FileCompletionEdit::OnSetText(const wchar_t *newtext)
{
	// see if the combobox text has changed, and if so, post a message detailing the new text
	wchar_t wbuf[255];
	GetText( wbuf, 254 );
	
	if ( wcscmp(wbuf, newtext) )
	{
		// text has changed
		SetText(newtext);

		// fire off that things have changed
		PostActionSignal(new KeyValues("TextChanged", "text", newtext));
		Repaint();
	}
}

void FileCompletionEdit::OnKillFocus()
{
	HideMenu();
	BaseClass::OnKillFocus();
}

void FileCompletionEdit::HideMenu(void)
{
	// hide the menu
	m_pDropDown->SetVisible(false);
}

void FileCompletionEdit::ShowMenu(void)
{
	// reset the dropdown's position
	m_pDropDown->InvalidateLayout();

	// make sure we're at the top of the draw order (and therefore our children as well)
	// this important to make sure the menu will be drawn in the foreground
	MoveToFront();

	// reset the drop down
	m_pDropDown->ClearCurrentlyHighlightedItem();

	// limit it to only 6
	if (m_pDropDown->GetItemCount() > 6)
	{
		m_pDropDown->SetNumberOfVisibleItems(6);
	}
	else
	{
		m_pDropDown->SetNumberOfVisibleItems(m_pDropDown->GetItemCount());
	}
	// show the menu
	m_pDropDown->SetVisible(true);

	Repaint();
}

void FileCompletionEdit::OnKeyCodeTyped(KeyCode code)
{
	if ( code == KEY_DOWN )
	{
		if (m_pDropDown->GetItemCount() > 0)
		{
			int menuID = m_pDropDown->GetCurrentlyHighlightedItem();
			int row = -1;
			if ( menuID == -1 )
			{
				row = m_pDropDown->GetItemCount() - 1;
			}
			else
			{
				row = GetRowFromItemID(menuID);
			}
			row++;
			if (row == m_pDropDown->GetItemCount())
			{
				row = 0;
			}
			menuID = GetItemIDFromRow(row);
			m_pDropDown->SetCurrentlyHighlightedItem(menuID);
			return;
		}
	}
	else if ( code == KEY_UP )
	{
		if (m_pDropDown->GetItemCount() > 0)
		{
			int menuID = m_pDropDown->GetCurrentlyHighlightedItem();
			int row = -1;
			if ( menuID == -1 )
			{
				row = 0;
			}
			else
			{
				row = GetRowFromItemID(menuID);
			}
			row--;
			if ( row < 0 )
			{
				row = m_pDropDown->GetItemCount() - 1;
			}
			menuID = GetItemIDFromRow(row);
			m_pDropDown->SetCurrentlyHighlightedItem(menuID);
			return;
		}
	}
	else if ( code == KEY_ESCAPE )
	{
		if ( m_pDropDown->IsVisible() )
		{
			HideMenu();
			return;
		}
	}
	BaseClass::OnKeyCodeTyped(code);
	return;
}

void FileCompletionEdit::OnMenuItemHighlight( int itemID )
{
	char wbuf[80];
	if ( m_pDropDown->IsValidMenuID(itemID) )
	{
		m_pDropDown->GetMenuItem(itemID)->GetText(wbuf, 80);
	}
	else
	{
		wbuf[0] = 0;
	}
	SetText(wbuf);
	RequestFocus();
	GotoTextEnd();
}


} // namespace vgui


//-----------------------------------------------------------------------------
// Dictionary of start dir contexts 
//-----------------------------------------------------------------------------
static CUtlDict< CUtlString, unsigned short > s_StartDirContexts;

struct ColumnInfo_t
{
	char const	*columnName;
	char const	*columnText;
	int			startingWidth;
	int			minWidth;
	int			maxWidth;
	int			flags;
	SortFunc	*pfnSort;
	Label::Alignment alignment;
};

static ColumnInfo_t g_ColInfo[] =
{
	{	"text",				"#FileOpenDialog_Col_Name",				175,	20, 10000, ListPanel::COLUMN_UNHIDABLE,		&ListFileNameSortFunc			, Label::a_west },
	{	"filesize",			"#FileOpenDialog_Col_Size",				100,	20, 10000, 0,								&ListFileSizeSortFunc			, Label::a_east },
	{	"type",				"#FileOpenDialog_Col_Type",				150,	20, 10000, 0,								&ListFileTypeSortFunc			, Label::a_west },
	{	"modified",			"#FileOpenDialog_Col_DateModified",		125,	20, 10000, 0,								&ListFileModifiedSortFunc		, Label::a_west },
	{	"created",			"#FileOpenDialog_Col_DateCreated",		125,	20, 10000, ListPanel::COLUMN_HIDDEN,		&ListFileCreatedSortFunc		, Label::a_west },
	{	"attributes",		"#FileOpenDialog_Col_Attributes",		50,		20, 10000, ListPanel::COLUMN_HIDDEN,		&ListFileAttributesSortFunc		, Label::a_west },
};

//-----------------------------------------------------------------------------
// Purpose: Constructor
//-----------------------------------------------------------------------------
FileOpenDialog::FileOpenDialog(Panel *parent, const char *title, bool bOpenOnly, KeyValues* pContextKeyValues ) : 
	Frame( parent, "FileOpenDialog" )
{
	m_DialogType = bOpenOnly ? FOD_OPEN : FOD_SAVE;
	Init( title, pContextKeyValues );
}


FileOpenDialog::FileOpenDialog( Panel *parent, const char *title, FileOpenDialogType_t type, KeyValues *pContextKeyValues ) : 
	Frame( parent, "FileOpenDialog" )
{
	m_DialogType = type;
	Init( title, pContextKeyValues );
}

void FileOpenDialog::Init( const char *title, KeyValues *pContextKeyValues )
{
	m_bFileSelected = false;
	SetTitle(title, true);
	SetMinimizeButtonVisible(false);
	Q_strncpy(m_szLastPath, "c:\\", sizeof( m_szLastPath ) );
	m_pContextKeyValues = pContextKeyValues;

	// Get the list of available drives and put them in a menu here.
	// Start with the directory we are in.
	m_pFullPathEdit = new ComboBox(this, "FullPathEdit", 6, false);
	m_pFullPathEdit->GetTooltip()->SetTooltipFormatToSingleLine();

	// list panel
	m_pFileList = new ListPanel(this, "FileList");
	for ( int i = 0; i < ARRAYSIZE( g_ColInfo ); ++i )
	{
		const ColumnInfo_t& info = g_ColInfo[ i ];

		m_pFileList->AddColumnHeader( i, info.columnName, info.columnText, info.startingWidth, info.minWidth, info.maxWidth, info.flags );
		m_pFileList->SetSortFunc( i, info.pfnSort );
		m_pFileList->SetColumnTextAlignment( i, info.alignment );
	}

	m_pFileList->SetSortColumn( s_nLastSortColumn );
	m_pFileList->SetMultiselectEnabled( false );

	// file name edit box
	m_pFileNameEdit = new FileCompletionEdit(this); 
	m_pFileNameEdit->AddActionSignalTarget(this);

	m_pFileTypeCombo = new ComboBox( this, "FileTypeCombo", 6, false );

	switch ( m_DialogType )
	{
	case FOD_OPEN:
		m_pOpenButton = new Button( this, "OpenButton", "#FileOpenDialog_Open", this );
		break;
	case FOD_SAVE:
		m_pOpenButton = new Button( this, "OpenButton", "#FileOpenDialog_Save", this );
		break;
	case FOD_SELECT_DIRECTORY:
		m_pOpenButton = new Button( this, "OpenButton", "#FileOpenDialog_Select", this );
		m_pFileTypeCombo->SetVisible( false );
		break;
	}

	m_pCancelButton = new Button( this, "CancelButton", "#FileOpenDialog_Cancel", this );
	m_pFolderUpButton = new Button( this, "FolderUpButton", "", this );
	m_pFolderUpButton->GetTooltip()->SetText( "#FileOpenDialog_ToolTip_Up" );
	m_pNewFolderButton = new Button( this, "NewFolderButton", "", this );
	m_pNewFolderButton->GetTooltip()->SetText( "#FileOpenDialog_ToolTip_NewFolder" );
	m_pOpenInExplorerButton = new Button( this, "OpenInExplorerButton", "", this );
	m_pOpenInExplorerButton->GetTooltip()->SetText( "#FileOpenDialog_ToolTip_OpenInExplorerButton" );
	Label *lookIn  = new Label( this, "LookInLabel", "#FileOpenDialog_Look_in" );
	Label *fileName = new Label( this, "FileNameLabel", 
		( m_DialogType != FOD_SELECT_DIRECTORY ) ? "#FileOpenDialog_File_name" : "#FileOpenDialog_Directory_Name" );

	m_pFolderIcon = new ImagePanel(NULL, "FolderIcon");

	// set up the control's initial positions
	SetSize( 600, 260 );

	int nFileEditLeftSide = ( m_DialogType != FOD_SELECT_DIRECTORY ) ? 84 : 100;
	int nFileNameWidth = ( m_DialogType != FOD_SELECT_DIRECTORY ) ? 72 : 82;

	m_pFullPathEdit->SetBounds(67, 32, 310, 24);
	m_pFolderUpButton->SetBounds(362, 32, 24, 24);
	m_pNewFolderButton->SetBounds(392, 32, 24, 24);
	m_pOpenInExplorerButton->SetBounds(332, 32, 24, 24);
	m_pFileList->SetBounds(10, 60, 406, 130);
	m_pFileNameEdit->SetBounds( nFileEditLeftSide, 194, 238, 24);
	m_pFileTypeCombo->SetBounds( nFileEditLeftSide, 224, 238, 24);
	m_pOpenButton->SetBounds(336, 194, 74, 24);
	m_pCancelButton->SetBounds(336, 224, 74, 24);
	lookIn->SetBounds(10, 32, 55, 24);
	fileName->SetBounds(10, 194, nFileNameWidth, 24);

	// set autolayout parameters
	m_pFullPathEdit->SetAutoResize( Panel::PIN_TOPLEFT, Panel::AUTORESIZE_RIGHT, 67, 32, -100, 0 );
	m_pFileNameEdit->SetAutoResize( Panel::PIN_BOTTOMLEFT, Panel::AUTORESIZE_RIGHT, nFileEditLeftSide, -42, -104, 0 );
	m_pFileTypeCombo->SetAutoResize( Panel::PIN_BOTTOMLEFT, Panel::AUTORESIZE_RIGHT, nFileEditLeftSide, -12, -104, 0 );
	m_pFileList->SetAutoResize( Panel::PIN_TOPLEFT, Panel::AUTORESIZE_DOWNANDRIGHT, 10, 60, -10, -70 );

	m_pFolderUpButton->SetPinCorner( Panel::PIN_TOPRIGHT, -40, 32 );
	m_pNewFolderButton->SetPinCorner( Panel::PIN_TOPRIGHT, -10, 32 );
	m_pOpenInExplorerButton->SetPinCorner( Panel::PIN_TOPRIGHT, -70, 32 );
	m_pOpenButton->SetPinCorner( Panel::PIN_BOTTOMRIGHT, -16, -42 );
	m_pCancelButton->SetPinCorner( Panel::PIN_BOTTOMRIGHT, -16, -12 );
	lookIn->SetPinCorner( Panel::PIN_TOPLEFT, 10, 32 );
	fileName->SetPinCorner( Panel::PIN_BOTTOMLEFT, 10, -42 );

	// label settings
	lookIn->SetContentAlignment(Label::a_west);
	fileName->SetContentAlignment(Label::a_west);

	lookIn->SetAssociatedControl(m_pFullPathEdit);
	fileName->SetAssociatedControl(m_pFileNameEdit);

	if ( m_DialogType != FOD_SELECT_DIRECTORY )
	{
		Label *fileType = new Label(this, "FileTypeLabel", "#FileOpenDialog_File_type");
		fileType->SetBounds(10, 224, 72, 24);
		fileType->SetPinCorner( Panel::PIN_BOTTOMLEFT, 10, -12 );
		fileType->SetContentAlignment(Label::a_west);
		fileType->SetAssociatedControl( m_pFileTypeCombo );
	}

	// set tab positions
	GetFocusNavGroup().SetDefaultButton(m_pOpenButton);

	m_pFileNameEdit->SetTabPosition(1);
	m_pFileTypeCombo->SetTabPosition(2);
	m_pOpenButton->SetTabPosition(3);
	m_pCancelButton->SetTabPosition(4);
	m_pFullPathEdit->SetTabPosition(5);
	m_pFileList->SetTabPosition(6);

	m_pOpenButton->SetCommand( ( m_DialogType != FOD_SELECT_DIRECTORY ) ? new KeyValues( "OnOpen" ) : new KeyValues( "SelectFolder" ) );
	m_pCancelButton->SetCommand( "CloseModal" );
	m_pFolderUpButton->SetCommand( new KeyValues( "OnFolderUp" ) );
	m_pNewFolderButton->SetCommand( new KeyValues( "OnNewFolder" ) );
	m_pOpenInExplorerButton->SetCommand( new KeyValues( "OpenInExplorer" ) );

	SetSize( 600, 384 );

	m_nStartDirContext = s_StartDirContexts.InvalidIndex();

	// Set our starting path to the current directory
	char pLocalPath[255];
	g_pFullFileSystem->GetCurrentDirectory( pLocalPath , 255 );
	SetStartDirectory( pLocalPath );

	// Because these call through virtual functions, we can't issue them in the constructor, so we post a message to ourselves instead!!
	PostMessage( GetVPanel(), new KeyValues( "PopulateFileList" ) );
	PostMessage( GetVPanel(), new KeyValues( "PopulateDriveList" ) );
}


//-----------------------------------------------------------------------------
// Purpose: Destructor
//-----------------------------------------------------------------------------
FileOpenDialog::~FileOpenDialog()
{
	s_nLastSortColumn = m_pFileList->GetSortColumn();
	if ( m_pContextKeyValues )
	{
		m_pContextKeyValues->deleteThis();
		m_pContextKeyValues = NULL;
	}
}


//-----------------------------------------------------------------------------
// Purpose: Apply scheme settings
//-----------------------------------------------------------------------------
void FileOpenDialog::ApplySchemeSettings(IScheme *pScheme)
{
	BaseClass::ApplySchemeSettings(pScheme);
	m_pFolderIcon->SetImage(scheme()->GetImage("resource/icon_folder", false));
	m_pFolderUpButton->AddImage(scheme()->GetImage("resource/icon_folderup", false), -3);
	m_pNewFolderButton->AddImage( scheme()->GetImage("resource/icon_newfolder", false), -3 );
	m_pOpenInExplorerButton->AddImage( scheme()->GetImage("resource/icon_play_once", false), -3 );

	ImageList *imageList = new ImageList(false);
	imageList->AddImage(scheme()->GetImage("resource/icon_file", false));
	imageList->AddImage(scheme()->GetImage("resource/icon_folder", false));
	imageList->AddImage(scheme()->GetImage("resource/icon_folder_selected", false));

	m_pFileList->SetImageList(imageList, true);
}


//-----------------------------------------------------------------------------
// Prevent default button ('select') from getting triggered
// when selecting directories. Instead, open the directory
//-----------------------------------------------------------------------------
void FileOpenDialog::OnKeyCodeTyped(KeyCode code)
{
	if ( m_DialogType == FOD_SELECT_DIRECTORY && code == KEY_ENTER )
	{
		OnOpen();
	}
	else
	{
		BaseClass::OnKeyCodeTyped( code );
	}
}


//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void FileOpenDialog::PopulateDriveList()
{
	char fullpath[MAX_PATH * 4];
	char subDirPath[MAX_PATH * 4];
	GetCurrentDirectory(fullpath, sizeof(fullpath) - MAX_PATH);
	Q_strncpy(subDirPath, fullpath, sizeof( subDirPath ) );

	m_pFullPathEdit->DeleteAllItems();

	// populate the drive list
	char buf[512];
	int len = system()->GetAvailableDrives(buf, 512);
	char *pBuf = buf;
	for (int i=0; i < len / 4; i++)
	{
		m_pFullPathEdit->AddItem(pBuf, NULL);

		// is this our drive - add all subdirectories
		if (!_strnicmp(pBuf, fullpath, 2))
		{
			int indent = 0;
			char *pData = fullpath;
			while (*pData)
			{
				if (*pData == '\\')
				{
					if (indent > 0)
					{
						memset(subDirPath, ' ', indent);
						memcpy(subDirPath+indent, fullpath, pData-fullpath);
						subDirPath[indent+pData-fullpath] = 0;

						m_pFullPathEdit->AddItem(subDirPath, NULL);
					}
					indent += 2;
				}
				pData++;
			}
		}
		pBuf += 4;
	}
}


//-----------------------------------------------------------------------------
// Purpose: Delete self on close
//-----------------------------------------------------------------------------
void FileOpenDialog::OnClose()
{
	s_nLastSortColumn = m_pFileList->GetSortColumn();
	if ( !m_bFileSelected )
	{
		KeyValues *pKeyValues = new KeyValues( "FileSelectionCancelled" );
		PostActionSignal( pKeyValues );
		m_bFileSelected = true;
	}

	m_pFileNameEdit->SetText("");
	m_pFileNameEdit->HideMenu();

	if ( vgui::input()->GetAppModalSurface() == GetVPanel() )
	{
		input()->SetAppModalSurface(NULL);
	}

	BaseClass::OnClose();
}

void FileOpenDialog::OnFolderUp()
{
	MoveUpFolder();
	OnOpen();
}

void FileOpenDialog::OnInputCompleted( KeyValues *data )
{
	if ( m_hInputDialog.Get() )
	{
		delete m_hInputDialog.Get();
	}

	input()->SetAppModalSurface( m_SaveModal );
	m_SaveModal = 0;

	NewFolder( data->GetString( "text" ) );
	OnOpen();
}

void FileOpenDialog::OnInputCanceled()
{
	input()->SetAppModalSurface( m_SaveModal );
	m_SaveModal = 0;
}

void FileOpenDialog::OnNewFolder()
{
	if ( m_hInputDialog.Get() )
		delete m_hInputDialog.Get();

	m_hInputDialog = new InputDialog( this, "#FileOpenDialog_NewFolder_InputTitle", "#FileOpenDialog_NewFolderPrompt", "#FileOpenDialog_NewFolder_DefaultName" );
	if ( m_hInputDialog.Get() )
	{
		m_SaveModal = input()->GetAppModalSurface();

		KeyValues *pContextKeyValues = new KeyValues( "NewFolder" );
		m_hInputDialog->SetSmallCaption( true );
		m_hInputDialog->SetMultiline( false );
		m_hInputDialog->DoModal( pContextKeyValues );
	}
}


//-----------------------------------------------------------------------------
// Opens the current file/folder in explorer
//-----------------------------------------------------------------------------
void FileOpenDialog::OnOpenInExplorer()
{
	char pCurrentDirectory[MAX_PATH];
	GetCurrentDirectory( pCurrentDirectory, sizeof(pCurrentDirectory) );
#if !defined( _X360 )
	ShellExecute( NULL, NULL, pCurrentDirectory, NULL, NULL, SW_SHOWNORMAL );
#endif
}


//-----------------------------------------------------------------------------
// Purpose: Handle for button commands
//-----------------------------------------------------------------------------
void FileOpenDialog::OnCommand(const char *command)
{
	if (!stricmp(command, "Cancel"))
	{
		Close();
	}
	else
	{
		BaseClass::OnCommand(command);
	}
}


//-----------------------------------------------------------------------------
// Sets the start directory context (and resets the start directory in the process)
//-----------------------------------------------------------------------------
void FileOpenDialog::SetStartDirectoryContext( const char *pStartDirContext, const char *pDefaultDir )
{
	bool bUseCurrentDirectory = true;
	if ( pStartDirContext )
	{
		m_nStartDirContext = s_StartDirContexts.Find( pStartDirContext );
		if ( m_nStartDirContext == s_StartDirContexts.InvalidIndex() )
		{
			m_nStartDirContext = s_StartDirContexts.Insert( pStartDirContext, pDefaultDir );
			bUseCurrentDirectory = ( pDefaultDir == NULL );
		}
		else
		{
			bUseCurrentDirectory = false;
		}
	}
	else
	{
		m_nStartDirContext = s_StartDirContexts.InvalidIndex();
	}

	if ( !bUseCurrentDirectory )
	{
		SetStartDirectory( s_StartDirContexts[m_nStartDirContext].Get() );
	}
	else
	{
		// Set our starting path to the current directory
		char pLocalPath[255];
		g_pFullFileSystem->GetCurrentDirectory( pLocalPath, 255 );
		SetStartDirectory( pLocalPath );
	}
}


//-----------------------------------------------------------------------------
// Purpose: Set the starting directory of the file search.
//-----------------------------------------------------------------------------
void FileOpenDialog::SetStartDirectory( const char *dir )
{
	m_pFullPathEdit->SetText(dir);

	// ensure it's validity
	ValidatePath();

	// Store this in the start directory list
	if ( m_nStartDirContext != s_StartDirContexts.InvalidIndex() )
	{
		char pDirBuf[MAX_PATH];
		GetCurrentDirectory( pDirBuf, sizeof(pDirBuf) );
		s_StartDirContexts[ m_nStartDirContext ] = pDirBuf;
	}

	PopulateDriveList();
}


//-----------------------------------------------------------------------------
// Purpose: Add filters for the drop down combo box
//-----------------------------------------------------------------------------
void FileOpenDialog::AddFilter( const char *filter, const char *filterName, bool bActive, const char *pFilterInfo  )
{
	KeyValues *kv = new KeyValues("item");
	kv->SetString( "filter", filter );
	kv->SetString( "filterinfo", pFilterInfo );
	int itemID = m_pFileTypeCombo->AddItem(filterName, kv);
	if ( bActive )
	{
		m_pFileTypeCombo->ActivateItem(itemID);
	}
}

//-----------------------------------------------------------------------------
// Purpose: Activate the dialog
//-----------------------------------------------------------------------------
void FileOpenDialog::DoModal( bool bUnused )
{
	m_bFileSelected = false;
	m_pFileNameEdit->RequestFocus();
	BaseClass::DoModal();
}


//-----------------------------------------------------------------------------
// Purpose: Gets the directory this is currently in
//-----------------------------------------------------------------------------
void FileOpenDialog::GetCurrentDirectory(char *buf, int bufSize)
{
	// get the text from the text entry
	m_pFullPathEdit->GetText(buf, bufSize);
}


//-----------------------------------------------------------------------------
// Purpose: Get the last selected file name
//-----------------------------------------------------------------------------
void FileOpenDialog::GetSelectedFileName(char *buf, int bufSize)
{
	m_pFileNameEdit->GetText(buf, bufSize);
}


//-----------------------------------------------------------------------------
// Creates a new folder
//-----------------------------------------------------------------------------
void FileOpenDialog::NewFolder( char const *folderName )
{
	char pCurrentDirectory[MAX_PATH];
	GetCurrentDirectory( pCurrentDirectory, sizeof(pCurrentDirectory) );

	char pFullPath[MAX_PATH];
	char pNewFolderName[MAX_PATH];
	Q_strncpy( pNewFolderName, folderName, sizeof(pNewFolderName) );
	int i = 2;
	do
	{
		Q_MakeAbsolutePath( pFullPath, sizeof(pFullPath), pNewFolderName, pCurrentDirectory );
		if ( !g_pFullFileSystem->FileExists( pFullPath, NULL ) &&
			 !g_pFullFileSystem->IsDirectory( pFullPath, NULL ) )
		{
			g_pFullFileSystem->CreateDirHierarchy( pFullPath, NULL );
			m_pFileNameEdit->SetText( pNewFolderName );
			return;
		}

		Q_snprintf( pNewFolderName, sizeof(pNewFolderName), "%s%d", folderName, i );
		++i;
	} while ( i <= 999 );
}


//-----------------------------------------------------------------------------
// Purpose: Move the directory structure up
//-----------------------------------------------------------------------------
void FileOpenDialog::MoveUpFolder()
{
	char fullpath[MAX_PATH * 4];
	GetCurrentDirectory(fullpath, sizeof(fullpath) - MAX_PATH);

	// strip it back
	char *pos = strrchr(fullpath, '\\');
	if (pos)
	{
		*pos = 0;

		if (!pos[1])
		{
			pos = strrchr(fullpath, '\\');
			if (pos)
			{
				*pos = 0;
			}
		}
	}

	// append a trailing slash
	Q_strncat(fullpath, "\\", sizeof( fullpath ), COPY_ALL_CHARACTERS );

	SetStartDirectory(fullpath);
	PopulateFileList();
	InvalidateLayout();
	Repaint();
}

//-----------------------------------------------------------------------------
// Purpose: Validate that the current path is valid
//-----------------------------------------------------------------------------
void FileOpenDialog::ValidatePath()
{
	char fullpath[MAX_PATH * 4];
	GetCurrentDirectory(fullpath, sizeof(fullpath) - MAX_PATH);
	Q_RemoveDotSlashes( fullpath );

	// ensure to add '\' to end of path
	char *pos = strrchr(fullpath, '\\');
	if ( ! ( pos && !pos[1] && pos[0] == '\\' ) )
	{
		Q_strncat(fullpath, "\\", sizeof( fullpath ), COPY_ALL_CHARACTERS );
	}

	// see if the path can be opened
	Q_strncat(fullpath, "*", sizeof( fullpath ), COPY_ALL_CHARACTERS );
	char *pData = fullpath;
	while (*pData == ' ')
	{
		pData++;
	}

	WIN32_FIND_DATA findData;
	HANDLE findHandle = ::FindFirstFile(pData, &findData);
	if (findHandle != INVALID_HANDLE_VALUE)
	{
		// directory is valid, remove * and store
		char *pos = strrchr(pData, '*');
		if (pos)
		{
			*pos = 0;
		}
		Q_strncpy(m_szLastPath, pData, sizeof(m_szLastPath));
	}
	else
	{
		// failed to load file, use the previously successful path
		Q_strcpy(pData, m_szLastPath);
	}

	m_pFullPathEdit->SetText(pData);
	m_pFullPathEdit->GetTooltip()->SetText(pData);
}

const char *GetAttributesAsString( DWORD dwAttributes )
{
	static char out[ 256 ];
	out[ 0 ] = 0;
	
	if ( dwAttributes & FILE_ATTRIBUTE_ARCHIVE )
	{
		Q_strncat( out, "A", sizeof( out ), COPY_ALL_CHARACTERS );
	}
	if ( dwAttributes & FILE_ATTRIBUTE_COMPRESSED )
	{
		Q_strncat( out, "C", sizeof( out ), COPY_ALL_CHARACTERS );
	}
	if ( dwAttributes & FILE_ATTRIBUTE_DIRECTORY )
	{
		Q_strncat( out, "D", sizeof( out ), COPY_ALL_CHARACTERS );
	}
	if ( dwAttributes & FILE_ATTRIBUTE_HIDDEN )
	{
		Q_strncat( out, "H", sizeof( out ), COPY_ALL_CHARACTERS );
	}
	if ( dwAttributes & FILE_ATTRIBUTE_READONLY )
	{
		Q_strncat( out, "R", sizeof( out ), COPY_ALL_CHARACTERS );
	}
	if ( dwAttributes & FILE_ATTRIBUTE_SYSTEM )
	{
		Q_strncat( out, "S", sizeof( out ), COPY_ALL_CHARACTERS );
	}
	if ( dwAttributes & FILE_ATTRIBUTE_TEMPORARY )
	{
		Q_strncat( out, "T", sizeof( out ), COPY_ALL_CHARACTERS );
	}
	return out;
}

const char *GetFileTimetamp( FILETIME ft )
{
	SYSTEMTIME local;
	FILETIME localFileTime;
	FileTimeToLocalFileTime( &ft, &localFileTime );
	FileTimeToSystemTime( &localFileTime, &local );

	static char out[ 256 ];

	bool am = true;
	WORD hour = local.wHour;
	if ( hour >= 12 )
	{
		am = false;
		// 12:42 pm displays as 12:42 pm
		// 13:42 pm displays as 1:42 pm
		if ( hour > 12 )
		{
			hour -= 12;
		}
	}
	Q_snprintf( out, sizeof( out ), "%d/%02d/%04d %d:%02d %s",
		local.wMonth, 
		local.wDay,
		local.wYear,
		hour,
		local.wMinute,
		am ? "AM" : "PM" // TODO: Localize this?
		);
	return out;
}

//-----------------------------------------------------------------------------
// Purpose: Fill the filelist with the names of all the files in the current directory
//-----------------------------------------------------------------------------
#define MAX_FILTER_LENGTH 255
void FileOpenDialog::PopulateFileList()
{
	// clear the current list
	m_pFileList->DeleteAllItems();
	
	// get the current directory
	char currentDir[MAX_PATH * 4];
	char dir[MAX_PATH * 4];
	char filterList[MAX_FILTER_LENGTH+1];
	GetCurrentDirectory(currentDir, sizeof(dir));

	KeyValues *combokv = m_pFileTypeCombo->GetActiveItemUserData();
	if (combokv)
	{
		Q_strncpy(filterList, combokv->GetString("filter", "*"), MAX_FILTER_LENGTH);
	}
	else
	{
		// add wildcard for search
		Q_strncpy(filterList, "*\0", MAX_FILTER_LENGTH);
	}

	char *filterPtr = filterList;
	KeyValues *kv = new KeyValues("item");
	WIN32_FIND_DATA findData;
	HANDLE findHandle = NULL;

	if ( m_DialogType != FOD_SELECT_DIRECTORY )
	{
		while ((filterPtr != NULL) && (*filterPtr != 0))
		{
			// parse the next filter in the list.
			char curFilter[MAX_FILTER_LENGTH];
			curFilter[0] = 0;
			int i = 0;
			while ((filterPtr != NULL) && ((*filterPtr == ',') || (*filterPtr == ';') || (*filterPtr <= ' ')))
			{
				++filterPtr;
			}
			while ((filterPtr != NULL) && (*filterPtr != ',') && (*filterPtr != ';') && (*filterPtr > ' '))
			{
				curFilter[i++] = *(filterPtr++);
			}
			curFilter[i] = 0;

			if (curFilter[0] == 0)
			{
				break;
			}

			Q_snprintf(dir, MAX_PATH*4, "%s%s", currentDir, curFilter);

			// open the directory and walk it, loading files
			findHandle = ::FindFirstFile(dir, &findData);
			while (findHandle != INVALID_HANDLE_VALUE)
			{
				if (!(findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
				{
					char fullpath[ 512 ];
					Q_snprintf( fullpath, sizeof( fullpath ), "%s%s", currentDir, findData.cFileName );

					// add the file to the list
					kv->SetString("text", findData.cFileName);

					kv->SetInt("image", 1);

					IImage *image = surface()->GetIconImageForFullPath( fullpath );
					if ( image )
					{
						kv->SetPtr( "iconImage", (void *)image );
					}

					kv->SetInt("imageSelected", 1);
					kv->SetInt("directory", 0);

					kv->SetInt( "filesizeint", findData.nFileSizeLow );
					kv->SetString( "filesize", Q_pretifymem( findData.nFileSizeLow, 0, true ) );
					Q_FixSlashes( fullpath );
					wchar_t fileType[ 80 ];
					g_pFullFileSystem->GetFileTypeForFullPath( fullpath, fileType, sizeof( fileType ) );
					kv->SetWString( "type", fileType );
					kv->SetString( "attributes", GetAttributesAsString( findData.dwFileAttributes ) );
					kv->SetString( "modified", GetFileTimetamp( findData.ftLastWriteTime ) );
					kv->SetString( "created", GetFileTimetamp( findData.ftCreationTime ) );
					kv->SetInt( "modifiedint_low", findData.ftLastWriteTime.dwLowDateTime );
					kv->SetInt( "modifiedint_high", findData.ftLastWriteTime.dwHighDateTime );
					kv->SetInt( "createdint_low", findData.ftCreationTime.dwLowDateTime );
					kv->SetInt( "createdint_high", findData.ftCreationTime.dwHighDateTime );

					m_pFileList->AddItem(kv, 0, false, false);
				}

				if (!::FindNextFile(findHandle, &findData))
					break;
			}
			::FindClose(findHandle);
		}
	}

	// find all the directories
	GetCurrentDirectory(dir, sizeof(dir));
	Q_strncat(dir, "*", sizeof( dir ), COPY_ALL_CHARACTERS);
	findHandle = ::FindFirstFile(dir, &findData);
	while (findHandle != INVALID_HANDLE_VALUE)
	{
		if (findData.cFileName[0] != '.' && findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
		{
			kv->SetString("text", findData.cFileName);
			kv->SetPtr( "iconImage", (void *)NULL );
			kv->SetInt("image", 2);
			kv->SetInt("imageSelected", 3);
			kv->SetInt("directory", 1);

			kv->SetInt( "filesizeint", 0 );
			kv->SetString( "filesize", "" );
			//char extension[ 4 ];
			//Q_ExtractFileExtension( findData.cFileName, extension, sizeof( extension ) );
			kv->SetString( "type", "#FileOpenDialog_FileType_Folder" );
			kv->SetString( "attributes", GetAttributesAsString( findData.dwFileAttributes ) );
			kv->SetString( "modified", GetFileTimetamp( findData.ftLastWriteTime ) );
			kv->SetString( "created", GetFileTimetamp( findData.ftCreationTime ) );
			kv->SetInt( "modifiedint_low", findData.ftLastWriteTime.dwLowDateTime );
			kv->SetInt( "modifiedint_high", findData.ftLastWriteTime.dwHighDateTime );
			kv->SetInt( "createdint_low", findData.ftCreationTime.dwLowDateTime );
			kv->SetInt( "createdint_high", findData.ftCreationTime.dwHighDateTime );

			m_pFileList->AddItem(kv, 0, false, false);
		}

		if (!::FindNextFile(findHandle, &findData))
			break;
	}
	::FindClose(findHandle);

	kv->deleteThis();
	m_pFileList->SortList();
}


//-----------------------------------------------------------------------------
// Does the specified extension match something in the filter list?
//-----------------------------------------------------------------------------
bool FileOpenDialog::ExtensionMatchesFilter( const char *pExt )
{
	KeyValues *combokv = m_pFileTypeCombo->GetActiveItemUserData();
	if ( !combokv )
		return true;

	char filterList[MAX_FILTER_LENGTH+1];
	Q_strncpy( filterList, combokv->GetString("filter", "*"), MAX_FILTER_LENGTH );

	char *filterPtr = filterList;
	while ((filterPtr != NULL) && (*filterPtr != 0))
	{
		// parse the next filter in the list.
		char curFilter[MAX_FILTER_LENGTH];
		curFilter[0] = 0;
		int i = 0;
		while ((filterPtr != NULL) && ((*filterPtr == ',') || (*filterPtr == ';') || (*filterPtr <= ' ')))
		{
			++filterPtr;
		}
		while ((filterPtr != NULL) && (*filterPtr != ',') && (*filterPtr != ';') && (*filterPtr > ' '))
		{
			curFilter[i++] = *(filterPtr++);
		}
		curFilter[i] = 0;

		if (curFilter[0] == 0)
			break;

		if ( !Q_stricmp( curFilter, "*" ) || !Q_stricmp( curFilter, "*.*" ) )
			return true;

		// FIXME: This isn't exactly right, but tough cookies;
		// it assumes the first two characters of the filter are *.
		Assert( curFilter[0] == '*' && curFilter[1] == '.' );
		if ( !Q_stricmp( &curFilter[2], pExt ) )
			return true;
	}

	return false;
}


//-----------------------------------------------------------------------------
// Choose the first non *.* filter in the filter list
//-----------------------------------------------------------------------------
void FileOpenDialog::ChooseExtension( char *pExt, int nBufLen )
{
	pExt[0] = 0;

	KeyValues *combokv = m_pFileTypeCombo->GetActiveItemUserData();
	if ( !combokv )
		return;

	char filterList[MAX_FILTER_LENGTH+1];
	Q_strncpy( filterList, combokv->GetString("filter", "*"), MAX_FILTER_LENGTH );

	char *filterPtr = filterList;
	while ((filterPtr != NULL) && (*filterPtr != 0))
	{
		// parse the next filter in the list.
		char curFilter[MAX_FILTER_LENGTH];
		curFilter[0] = 0;
		int i = 0;
		while ((filterPtr != NULL) && ((*filterPtr == ',') || (*filterPtr == ';') || (*filterPtr <= ' ')))
		{
			++filterPtr;
		}
		while ((filterPtr != NULL) && (*filterPtr != ',') && (*filterPtr != ';') && (*filterPtr > ' '))
		{
			curFilter[i++] = *(filterPtr++);
		}
		curFilter[i] = 0;

		if (curFilter[0] == 0)
			break;

		if ( !Q_stricmp( curFilter, "*" ) || !Q_stricmp( curFilter, "*.*" ) )
			continue;

		// FIXME: This isn't exactly right, but tough cookies;
		// it assumes the first two characters of the filter are *.
		Assert( curFilter[0] == '*' && curFilter[1] == '.' );
		Q_strncpy( pExt, &curFilter[1], nBufLen );
		break;
	}
}


//-----------------------------------------------------------------------------
// Saves the file to the start dir context
//-----------------------------------------------------------------------------
void FileOpenDialog::SaveFileToStartDirContext( const char *pFullPath )
{
	if ( m_nStartDirContext == s_StartDirContexts.InvalidIndex() )
		return;

	char pPath[MAX_PATH];
	pPath[0] = 0;
	Q_ExtractFilePath( pFullPath, pPath, sizeof(pPath) );
	s_StartDirContexts[ m_nStartDirContext ] = pPath;
}


//-----------------------------------------------------------------------------
// Posts a file selected message
//-----------------------------------------------------------------------------
void FileOpenDialog::PostFileSelectedMessage( const char *pFileName )
{
	m_bFileSelected = true;

	// open the file!
	KeyValues *pKeyValues = new KeyValues( "FileSelected", "fullpath", pFileName );
	KeyValues *pFilterKeys = m_pFileTypeCombo->GetActiveItemUserData();
	const char *pFilterInfo = pFilterKeys ? pFilterKeys->GetString( "filterinfo", NULL ) : NULL;
	if ( pFilterInfo )
	{
		pKeyValues->SetString( "filterinfo", pFilterInfo );
	}
	if ( m_pContextKeyValues )
	{
		pKeyValues->AddSubKey( m_pContextKeyValues );
		m_pContextKeyValues = NULL;
	}
	PostActionSignal( pKeyValues );
	CloseModal();
}


//-----------------------------------------------------------------------------
// Selects the current folder
//-----------------------------------------------------------------------------
void FileOpenDialog::OnSelectFolder()
{
	ValidatePath();

	// construct a file path
	char pFileName[MAX_PATH];
	GetSelectedFileName( pFileName, sizeof( pFileName ) );

	Q_StripTrailingSlash( pFileName );

	if ( !stricmp(pFileName, "..") )
	{
		MoveUpFolder();

		// clear the name text
		m_pFileNameEdit->SetText("");
		return;
	}

	if ( !stricmp(pFileName, ".") )
	{
		// clear the name text
		m_pFileNameEdit->SetText("");
		return;
	}

	// Compute the full path
	char pFullPath[MAX_PATH * 4];
	if ( !Q_IsAbsolutePath( pFileName ) )
	{
		GetCurrentDirectory(pFullPath, sizeof(pFullPath) - MAX_PATH);
		strcat( pFullPath, pFileName );
		if ( !pFileName[0] )
		{
			Q_StripTrailingSlash( pFullPath );
		}
	}
	else
	{
		Q_strncpy( pFullPath, pFileName, sizeof(pFullPath) );
	}

	if ( g_pFullFileSystem->FileExists( pFullPath ) )
	{
		// open the file!
		SaveFileToStartDirContext( pFullPath );
		PostFileSelectedMessage( pFullPath );
		return;
	}

	PopulateDriveList();
	PopulateFileList();
	InvalidateLayout();
}


//-----------------------------------------------------------------------------
// Purpose: Handle the open button being pressed
//			checks on what has changed and acts accordingly
//-----------------------------------------------------------------------------
void FileOpenDialog::OnOpen()
{
	ValidatePath();

	// construct a file path
	char pFileName[MAX_PATH];
	GetSelectedFileName( pFileName, sizeof( pFileName ) );

	int nLen = Q_strlen( pFileName );
	bool bSpecifiedDirectory = ( pFileName[nLen-1] == '/' || pFileName[nLen-1] == '\\' );
	Q_StripTrailingSlash( pFileName );

	if ( !stricmp(pFileName, "..") )
	{
		MoveUpFolder();
		
		// clear the name text
		m_pFileNameEdit->SetText("");
		return;
	}

	if ( !stricmp(pFileName, ".") )
	{
		// clear the name text
		m_pFileNameEdit->SetText("");
		return;
	}
	 
	// Compute the full path
	char pFullPath[MAX_PATH * 4];
	if ( !Q_IsAbsolutePath( pFileName ) )
	{
		GetCurrentDirectory(pFullPath, sizeof(pFullPath) - MAX_PATH);
		strcat(pFullPath, pFileName);
		if ( !pFileName[0] )
		{
			Q_StripTrailingSlash( pFullPath );
		}
	}
	else
	{
		Q_strncpy( pFullPath, pFileName, sizeof(pFullPath) );
	}

	// If the name specified is a directory, then change directory
	if ( g_pFullFileSystem->IsDirectory( pFullPath, NULL ) )
	{
		// it's a directory; change to the specified directory
		if ( !bSpecifiedDirectory )
		{
			strcat( pFullPath , "\\");
		}
		SetStartDirectory( pFullPath );

		// clear the name text
		m_pFileNameEdit->SetText("");
		m_pFileNameEdit->HideMenu();

		PopulateDriveList();
		PopulateFileList();
		InvalidateLayout();
		return;
	}
	else if ( bSpecifiedDirectory )
	{
		PopulateDriveList();
		PopulateFileList();
		InvalidateLayout();
		return;
	}

	// Append suffix of the first filter that isn't *.*
	char extension[512];
	Q_ExtractFileExtension( pFullPath, extension, sizeof(extension) );
	if ( !ExtensionMatchesFilter( extension ) )
	{
		ChooseExtension( extension, sizeof(extension) );
		Q_SetExtension( pFullPath, extension, sizeof(pFullPath) );
	}

	if ( g_pFullFileSystem->FileExists( pFullPath ) )
	{
		// open the file!
		SaveFileToStartDirContext( pFullPath );
		PostFileSelectedMessage( pFullPath );
		return;
	}

	// file not found
	if ( ( m_DialogType == FOD_SAVE ) && pFileName[0] )
	{
		// open the file!
		SaveFileToStartDirContext( pFullPath );
		PostFileSelectedMessage( pFullPath );
		return;
	}

	PopulateDriveList();
	PopulateFileList();
	InvalidateLayout();
}


//-----------------------------------------------------------------------------
// Purpose: using the file edit box as a prefix, create a menu of all possible files 
//-----------------------------------------------------------------------------
void FileOpenDialog::PopulateFileNameCompletion()
{
	char buf[80];
	m_pFileNameEdit->GetText(buf, 80);
	wchar_t wbuf[80];
	m_pFileNameEdit->GetText(wbuf, 80);
	int bufLen = wcslen(wbuf);

	// delete all items before we check if there's even a string
	m_pFileNameEdit->DeleteAllItems();

	// no string at all - don't show even bother showing it
	if (bufLen == 0)
	{
		m_pFileNameEdit->HideMenu();
		return;
	}

	// what files use current string as a prefix?
	int nCount = m_pFileList->GetItemCount();
	int i;
	for ( i = 0 ; i < nCount ; i++ )
	{
		KeyValues *kv = m_pFileList->GetItem(m_pFileList->GetItemIDFromRow(i));
		const wchar_t *wszString = kv->GetWString("text");
		if ( !_wcsnicmp(wbuf, wszString, bufLen) )
		{
			m_pFileNameEdit->AddItem(wszString, NULL);
		}
	}

	// if there are any items - show the menu
	if ( m_pFileNameEdit->GetItemCount() > 0 )
	{
		m_pFileNameEdit->ShowMenu();
	}
	else
	{
		m_pFileNameEdit->HideMenu();
	}

	m_pFileNameEdit->InvalidateLayout();
}

//-----------------------------------------------------------------------------
// Purpose: Handle an item in the list being selected
//-----------------------------------------------------------------------------
void FileOpenDialog::OnItemSelected()
{
	// make sure only one item is selected
	if (m_pFileList->GetSelectedItemsCount() != 1)
	{
		m_pFileNameEdit->SetText("");
	}
	else
	{
		// put the file name into the text edit box
		KeyValues *data = m_pFileList->GetItem(m_pFileList->GetSelectedItem(0));
		m_pFileNameEdit->SetText(data->GetString("text"));
	}

	InvalidateLayout();
}

//-----------------------------------------------------------------------------
// Purpose: Handle an item in the Drive combo box being selected
//-----------------------------------------------------------------------------
void FileOpenDialog::OnTextChanged(KeyValues *kv)
{
	Panel *pPanel = (Panel *) kv->GetPtr("panel", NULL);

	// first check which control had its text changed!
	if (pPanel == m_pFullPathEdit)
	{
		m_pFileNameEdit->HideMenu();
		m_pFileNameEdit->SetText("");
		OnOpen();
	}
	else if (pPanel == m_pFileNameEdit)
	{
		PopulateFileNameCompletion();
	}
	else if (pPanel == m_pFileTypeCombo)
	{
		m_pFileNameEdit->HideMenu();
		PopulateFileList();
	}
}
#endif // ifndef _WIN32
