/* ***** 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 Linden Lab Inc. (http://lindenlab.com) code.
 *
 * The Initial Developer of the Original Code is:
 *   Callum Prentice (callum@ubrowser.com)
 *
 * Portions created by the Initial Developer are Copyright (C) 2006
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *  Callum Prentice (callum@ubrowser.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 ***** */

#ifndef LLMOZLIB_H
#define LLMOZLIB_H

#include <string>
#include <map>

class LLEmbeddedBrowser;
class LLEmbeddedBrowserWindow;

////////////////////////////////////////////////////////////////////////////////
// data class that is passed with an event
class LLEmbeddedBrowserWindowEvent
{
	public:
		LLEmbeddedBrowserWindowEvent( int eventWindowIdIn, std::string uriIn ) :
			mEventWindowId( eventWindowIdIn ),
			mEventUri( uriIn )
		{
		};

		// single int passed with the event - e.g. progress
		LLEmbeddedBrowserWindowEvent( int eventWindowIdIn, std::string uriIn, int intValIn ) :
			mEventWindowId( eventWindowIdIn ),
			mEventUri( uriIn ),
			mIntVal( intValIn )
		{
		};

		// string passed with the event
		LLEmbeddedBrowserWindowEvent( int eventWindowIdIn, std::string uriIn, std::string stringValIn ) :
			mEventWindowId( eventWindowIdIn ),
			mEventUri( uriIn ),
			mStringVal( stringValIn )
		{
		};

		// 2 strings passed with the event
		LLEmbeddedBrowserWindowEvent( int eventWindowIdIn, std::string uriIn, std::string stringValIn, std::string stringVal2In ) :
			mEventWindowId( eventWindowIdIn ),
			mEventUri( uriIn ),
			mStringVal( stringValIn ),
			mStringVal2( stringVal2In )
		{
		};

		// string and an int passed with the event
		LLEmbeddedBrowserWindowEvent( int eventWindowIdIn, std::string uriIn, std::string stringValIn, int intValIn ) :
			mEventWindowId( eventWindowIdIn ),
			mEventUri( uriIn ),
			mStringVal( stringValIn ),
			mIntVal( intValIn )
		{
		};

		// 4 ints passed (semantically as a rectangle but could be anything - didn't want to make a RECT type structure)
		LLEmbeddedBrowserWindowEvent( int eventWindowIdIn, std::string uriIn, int xIn, int yIn, int widthIn, int heightIn ) :
			mEventWindowId( eventWindowIdIn ),
			mEventUri( uriIn ),
			mXVal( xIn ),
			mYVal( yIn ),
			mWidthVal( widthIn ),
			mHeightVal( heightIn )
		{
		};

		virtual ~LLEmbeddedBrowserWindowEvent()
		{
		};

		int getEventWindowId() const
		{
			return mEventWindowId;
		};

		std::string getEventUri() const
		{
			return mEventUri;
		};

		int getIntValue() const
		{
			return mIntVal;
		};

		std::string getStringValue() const
		{
			return mStringVal;
		};

		std::string getStringValue2() const
		{
			return mStringVal2;
		};

		void getRectValue( int& xOut, int& yOut, int& widthOut, int& heightOut ) const
		{
			xOut = mXVal;
			yOut = mYVal;
			widthOut = mWidthVal;
			heightOut = mHeightVal;
		};

	private:
		int mEventWindowId;
		std::string mEventUri;
		int mIntVal;
		std::string mStringVal;
		std::string mStringVal2;
		int mXVal;
		int mYVal;
		int mWidthVal;
		int mHeightVal;
};

////////////////////////////////////////////////////////////////////////////////
// derrive from this class and override these methods to observe these events
class LLEmbeddedBrowserWindowObserver
{
	public:
		virtual ~LLEmbeddedBrowserWindowObserver() { };
		typedef LLEmbeddedBrowserWindowEvent EventType;

		virtual void onPageChanged( const EventType& eventIn ) { };
		virtual void onNavigateBegin( const EventType& eventIn ) { };
		virtual void onNavigateComplete( const EventType& eventIn ) { };
		virtual void onUpdateProgress( const EventType& eventIn ) { };
		virtual void onStatusTextChange( const EventType& eventIn ) { };
		virtual void onLocationChange( const EventType& eventIn ) { };
		virtual void onClickLinkHref( const EventType& eventIn ) { };
		virtual void onClickLinkNoFollow( const EventType& eventIn ) { };
};

////////////////////////////////////////////////////////////////////////////////
// main library class
class LLMozLib
{
	public:
		virtual ~LLMozLib();

		// singleton access
		static LLMozLib* getInstance();

		// housekeeping
		bool init( std::string applicationDir, std::string componentDir, std::string profileDir, void* nativeWindowHandleIn );
		bool reset();
		bool clearCache();
		int getLastError();
		const std::string getVersion();
		void setBrowserAgentId( std::string idIn );
		bool enableProxy( bool proxyEnabledIn, std::string proxyHostNameIn, int proxyPortIn );
		bool enableCookies( bool enabledIn );
		bool clearAllCookies();
		bool enablePlugins( bool enabledIn );

		// browser window - creation/deletion, mutation etc.
		int createBrowserWindow( int browserWindowWidthIn, int browserWindowHeightIn );
		bool destroyBrowserWindow( int browserWindowIdIn );
		bool setSize( int browserWindowIdIn, int widthIn, int heightIn );
		bool scrollByLines( int browserWindowIdIn, int linesIn );
		bool setBackgroundColor( int browserWindowIdIn, const int redIn, const int greenIn, const int blueIn );
		bool setCaretColor( int browserWindowIdIn, const int redIn, const int greenIn, const int blueIn );
		bool setEnabled( int browserWindowIdIn, bool enabledIn );

		// add/remove yourself as an observer on browser events - see LLEmbeddedBrowserWindowObserver declaration
		bool addObserver( int browserWindowIdIn, LLEmbeddedBrowserWindowObserver* subjectIn );
		bool remObserver( int browserWindowIdIn, LLEmbeddedBrowserWindowObserver* subjectIn );

		// navigation - self explanatory
		bool navigateTo( int browserWindowIdIn, const std::string uriIn );
		bool navigateStop( int browserWindowIdIn );
		bool canNavigateBack( int browserWindowIdIn );
		bool navigateBack( int browserWindowIdIn );
		bool canNavigateForward( int browserWindowIdIn );
		bool navigateForward( int browserWindowIdIn );

		// javascript access/control
		std::string evaluateJavascript( int browserWindowIdIn, const std::string scriptIn );

		// set/clear URL to redirect to when a 404 page is reached
		bool set404RedirectUrl( int browser_window_in, std::string redirect_url );
		bool clr404RedirectUrl( int browser_window_in );

		// access to rendered bitmap data
		const unsigned char* grabBrowserWindow( int browserWindowIdIn );		// renders page to memory and returns pixels
		const unsigned char* getBrowserWindowPixels( int browserWindowIdIn );	// just returns pixels - no render
		const bool flipWindow( int browserWindowIdIn, bool flipIn );			// optionally flip window (pixels) you get back
		const int getBrowserWidth( int browserWindowIdIn );						// current browser width (can vary slightly after page is rendered)
		const int getBrowserHeight( int browserWindowIdIn );					// current height
		const int getBrowserDepth( int browserWindowIdIn );						// depth in bytes
		const int getBrowserRowSpan( int browserWindowIdIn );					// width in pixels * depth in bytes

		// mouse/keyboard interaction
		bool mouseDown( int browserWindowIdIn, int xPosIn, int yPosIn );			// send a mouse down event to a browser window at given XY in browser space
		bool mouseUp( int browserWindowIdIn, int xPosIn, int yPosIn );				// send a mouse up event to a browser window at given XY in browser space
		bool mouseMove( int browserWindowIdIn, int xPosIn, int yPosIn );			// send a mouse move event to a browser window at given XY in browser space
		bool mouseLeftDoubleClick( int browserWindowIdIn, int xPosIn, int yPosIn );	// send a mouse left button double click to a browser window at given XY in browser space
		bool keyPress( int browserWindowIdIn, int keyCodeIn );						// send a key press event to a browser window
		bool unicodeInput ( int browserWindowIdIn, unsigned long uni_char );		// send a unicode keypress event to a browser window
		bool focusBrowser( int browserWindowIdIn, bool focusBrowserIn );			// set/remove focus to given browser window

		// accessor/mutator for scheme that browser doesn't follow - e.g. secondlife.com://
		void setNoFollowScheme( int browserWindowIdIn, std::string schemeIn );
		std::string getNoFollowScheme( int browserWindowIdIn );

	private:
		LLMozLib();
		LLEmbeddedBrowserWindow* getBrowserWindowFromWindowId( int browserWindowIdIn );
		static LLMozLib* sInstance;
		const int mMaxBrowserWindows;
		typedef std::map< int, LLEmbeddedBrowserWindow* > BrowserWindowMap;
		typedef std::map< int, LLEmbeddedBrowserWindow* >::iterator BrowserWindowMapIter;
		BrowserWindowMap mBrowserWindowMap;
};

// Mozilla virtual keycodes.
// We don't want to suck in Mozilla headers so we copy these consts
// from nsIDOMKeyEvent.idl.

const unsigned long LL_DOM_VK_CANCEL         = 0x03;
const unsigned long LL_DOM_VK_HELP           = 0x06;
const unsigned long LL_DOM_VK_BACK_SPACE     = 0x08;
const unsigned long LL_DOM_VK_TAB            = 0x09;
const unsigned long LL_DOM_VK_CLEAR          = 0x0C;
const unsigned long LL_DOM_VK_RETURN         = 0x0D;
const unsigned long LL_DOM_VK_ENTER          = 0x0E;
const unsigned long LL_DOM_VK_SHIFT          = 0x10;
const unsigned long LL_DOM_VK_CONTROL        = 0x11;
const unsigned long LL_DOM_VK_ALT            = 0x12;
const unsigned long LL_DOM_VK_PAUSE          = 0x13;
const unsigned long LL_DOM_VK_CAPS_LOCK      = 0x14;
const unsigned long LL_DOM_VK_ESCAPE         = 0x1B;
const unsigned long LL_DOM_VK_SPACE          = 0x20;
const unsigned long LL_DOM_VK_PAGE_UP        = 0x21;
const unsigned long LL_DOM_VK_PAGE_DOWN      = 0x22;
const unsigned long LL_DOM_VK_END            = 0x23;
const unsigned long LL_DOM_VK_HOME           = 0x24;
const unsigned long LL_DOM_VK_LEFT           = 0x25;
const unsigned long LL_DOM_VK_UP             = 0x26;
const unsigned long LL_DOM_VK_RIGHT          = 0x27;
const unsigned long LL_DOM_VK_DOWN           = 0x28;
const unsigned long LL_DOM_VK_PRINTSCREEN    = 0x2C;
const unsigned long LL_DOM_VK_INSERT         = 0x2D;
const unsigned long LL_DOM_VK_DELETE         = 0x2E;

// LL_DOM_VK_0 - LL_DOM_VK_9 match their ASCII values
const unsigned long LL_DOM_VK_0              = 0x30;
const unsigned long LL_DOM_VK_1              = 0x31;
const unsigned long LL_DOM_VK_2              = 0x32;
const unsigned long LL_DOM_VK_3              = 0x33;
const unsigned long LL_DOM_VK_4              = 0x34;
const unsigned long LL_DOM_VK_5              = 0x35;
const unsigned long LL_DOM_VK_6              = 0x36;
const unsigned long LL_DOM_VK_7              = 0x37;
const unsigned long LL_DOM_VK_8              = 0x38;
const unsigned long LL_DOM_VK_9              = 0x39;

const unsigned long LL_DOM_VK_SEMICOLON      = 0x3B;
const unsigned long LL_DOM_VK_EQUALS         = 0x3D;

// LL_DOM_VK_A - LL_DOM_VK_Z match their ASCII values
const unsigned long LL_DOM_VK_A              = 0x41;
const unsigned long LL_DOM_VK_B              = 0x42;
const unsigned long LL_DOM_VK_C              = 0x43;
const unsigned long LL_DOM_VK_D              = 0x44;
const unsigned long LL_DOM_VK_E              = 0x45;
const unsigned long LL_DOM_VK_F              = 0x46;
const unsigned long LL_DOM_VK_G              = 0x47;
const unsigned long LL_DOM_VK_H              = 0x48;
const unsigned long LL_DOM_VK_I              = 0x49;
const unsigned long LL_DOM_VK_J              = 0x4A;
const unsigned long LL_DOM_VK_K              = 0x4B;
const unsigned long LL_DOM_VK_L              = 0x4C;
const unsigned long LL_DOM_VK_M              = 0x4D;
const unsigned long LL_DOM_VK_N              = 0x4E;
const unsigned long LL_DOM_VK_O              = 0x4F;
const unsigned long LL_DOM_VK_P              = 0x50;
const unsigned long LL_DOM_VK_Q              = 0x51;
const unsigned long LL_DOM_VK_R              = 0x52;
const unsigned long LL_DOM_VK_S              = 0x53;
const unsigned long LL_DOM_VK_T              = 0x54;
const unsigned long LL_DOM_VK_U              = 0x55;
const unsigned long LL_DOM_VK_V              = 0x56;
const unsigned long LL_DOM_VK_W              = 0x57;
const unsigned long LL_DOM_VK_X              = 0x58;
const unsigned long LL_DOM_VK_Y              = 0x59;
const unsigned long LL_DOM_VK_Z              = 0x5A;

const unsigned long LL_DOM_VK_CONTEXT_MENU   = 0x5D;

const unsigned long LL_DOM_VK_NUMPAD0        = 0x60;
const unsigned long LL_DOM_VK_NUMPAD1        = 0x61;
const unsigned long LL_DOM_VK_NUMPAD2        = 0x62;
const unsigned long LL_DOM_VK_NUMPAD3        = 0x63;
const unsigned long LL_DOM_VK_NUMPAD4        = 0x64;
const unsigned long LL_DOM_VK_NUMPAD5        = 0x65;
const unsigned long LL_DOM_VK_NUMPAD6        = 0x66;
const unsigned long LL_DOM_VK_NUMPAD7        = 0x67;
const unsigned long LL_DOM_VK_NUMPAD8        = 0x68;
const unsigned long LL_DOM_VK_NUMPAD9        = 0x69;
const unsigned long LL_DOM_VK_MULTIPLY       = 0x6A;
const unsigned long LL_DOM_VK_ADD            = 0x6B;
const unsigned long LL_DOM_VK_SEPARATOR      = 0x6C;
const unsigned long LL_DOM_VK_SUBTRACT       = 0x6D;
const unsigned long LL_DOM_VK_DECIMAL        = 0x6E;
const unsigned long LL_DOM_VK_DIVIDE         = 0x6F;
const unsigned long LL_DOM_VK_F1             = 0x70;
const unsigned long LL_DOM_VK_F2             = 0x71;
const unsigned long LL_DOM_VK_F3             = 0x72;
const unsigned long LL_DOM_VK_F4             = 0x73;
const unsigned long LL_DOM_VK_F5             = 0x74;
const unsigned long LL_DOM_VK_F6             = 0x75;
const unsigned long LL_DOM_VK_F7             = 0x76;
const unsigned long LL_DOM_VK_F8             = 0x77;
const unsigned long LL_DOM_VK_F9             = 0x78;
const unsigned long LL_DOM_VK_F10            = 0x79;
const unsigned long LL_DOM_VK_F11            = 0x7A;
const unsigned long LL_DOM_VK_F12            = 0x7B;
const unsigned long LL_DOM_VK_F13            = 0x7C;
const unsigned long LL_DOM_VK_F14            = 0x7D;
const unsigned long LL_DOM_VK_F15            = 0x7E;
const unsigned long LL_DOM_VK_F16            = 0x7F;
const unsigned long LL_DOM_VK_F17            = 0x80;
const unsigned long LL_DOM_VK_F18            = 0x81;
const unsigned long LL_DOM_VK_F19            = 0x82;
const unsigned long LL_DOM_VK_F20            = 0x83;
const unsigned long LL_DOM_VK_F21            = 0x84;
const unsigned long LL_DOM_VK_F22            = 0x85;
const unsigned long LL_DOM_VK_F23            = 0x86;
const unsigned long LL_DOM_VK_F24            = 0x87;

const unsigned long LL_DOM_VK_NUM_LOCK       = 0x90;
const unsigned long LL_DOM_VK_SCROLL_LOCK    = 0x91;

const unsigned long LL_DOM_VK_COMMA          = 0xBC;
const unsigned long LL_DOM_VK_PERIOD         = 0xBE;
const unsigned long LL_DOM_VK_SLASH          = 0xBF;
const unsigned long LL_DOM_VK_BACK_QUOTE     = 0xC0;
const unsigned long LL_DOM_VK_OPEN_BRACKET   = 0xDB;
const unsigned long LL_DOM_VK_BACK_SLASH     = 0xDC;
const unsigned long LL_DOM_VK_CLOSE_BRACKET  = 0xDD;
const unsigned long LL_DOM_VK_QUOTE          = 0xDE;

const unsigned long LL_DOM_VK_META           = 0xE0;

#endif // LLMOZLIB_H