Subversion Repositories SmartDukaan

/* Compile using: mxmlc --target-player=10.0.0 -static-link-runtime-shared-libraries=true -library-path+=lib ZeroClipboardPdf.as */
package {
        import flash.display.Stage;
        import flash.display.Sprite;
        import flash.display.LoaderInfo;
        import flash.display.StageScaleMode;
        import flash.events.*;
        import flash.display.StageAlign;
        import flash.display.StageScaleMode;
        import flash.external.ExternalInterface;
        import flash.system.Security;
        import flash.utils.*;
        import flash.system.System;
        import flash.net.FileReference;
        import flash.net.FileFilter;
        
        /* PDF imports */
        import org.alivepdf.pdf.PDF;
        import org.alivepdf.data.Grid;
        import org.alivepdf.data.GridColumn;
        import org.alivepdf.layout.Orientation;
        import org.alivepdf.layout.Size;
        import org.alivepdf.layout.Unit;
        import org.alivepdf.display.Display;
        import org.alivepdf.saving.Method;
        import org.alivepdf.fonts.FontFamily;
        import org.alivepdf.fonts.Style;
        import org.alivepdf.fonts.CoreFont;
        import org.alivepdf.colors.RGBColor;
 
        public class ZeroClipboard extends Sprite {
                
                private var domId:String = '';
                private var button:Sprite;
                private var clipText:String = 'blank';
                private var fileName:String = '';
                private var action:String = 'copy';
                private var incBom:Boolean = true;
                private var charSet:String = 'utf8';
                
                
                public function ZeroClipboard() {
                        // constructor, setup event listeners and external interfaces
                        stage.scaleMode = StageScaleMode.EXACT_FIT;
                        flash.system.Security.allowDomain("*");
                        
                        // import flashvars
                        var flashvars:Object = LoaderInfo( this.root.loaderInfo ).parameters;
                        domId = flashvars.id;
                        
                        // invisible button covers entire stage
                        button = new Sprite();
                        button.buttonMode = true;
                        button.useHandCursor = true;
                        button.graphics.beginFill(0x00FF00);
                        button.graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
                        button.alpha = 0.0;
                        addChild(button);
                        
                        button.addEventListener(MouseEvent.CLICK, function(event:Event):void {
                                clickHandler(event);
                        } );
                        button.addEventListener(MouseEvent.MOUSE_OVER, function(event:Event):void {
                                ExternalInterface.call( 'ZeroClipboard.dispatch', domId, 'mouseOver', null );
                        } );
                        button.addEventListener(MouseEvent.MOUSE_OUT, function(event:Event):void {
                                ExternalInterface.call( 'ZeroClipboard.dispatch', domId, 'mouseOut', null );
                        } );
                        button.addEventListener(MouseEvent.MOUSE_DOWN, function(event:Event):void {
                                ExternalInterface.call( 'ZeroClipboard.dispatch', domId, 'mouseDown', null );
                        } );
                        button.addEventListener(MouseEvent.MOUSE_UP, function(event:Event):void {
                                ExternalInterface.call( 'ZeroClipboard.dispatch', domId, 'mouseUp', null );
                        } );
                        
                        /* External functions
                         * This is extremely nasty, and I'm far from proud of this, however, when a Flash
                         * movie is hidden in IE (i.e. display:none) then all callbacks are removed, and there
                         * is no way to tell that this has happened! Javascript can't tell us since there are
                         * no callbacks - so we need to add them again and again... Fortunatly Flash doesn't
                         * allow multiple callback functions to be used with each callback name, it just uses
                         * the provided function, so the only thing we use for this workaround is a couple of
                         * clock cycles.
                         */
                        addCallbacks();
                        setInterval( addCallbacks, 1000 );
                        
                        // signal to the browser that we are ready
                        ExternalInterface.call( 'ZeroClipboard.dispatch', domId, 'load', null );
                }
                
                public function addCallbacks ():void {
                        ExternalInterface.addCallback("setHandCursor", setHandCursor);
                        ExternalInterface.addCallback("clearText", clearText);
                        ExternalInterface.addCallback("setText", setText);
                        ExternalInterface.addCallback("appendText", appendText);
                        ExternalInterface.addCallback("setFileName", setFileName);
                        ExternalInterface.addCallback("setAction", setAction);
                        ExternalInterface.addCallback("setCharSet", setCharSet);
                        ExternalInterface.addCallback("setBomInc", setBomInc);
                }
                
                
                public function setCharSet(newCharSet:String):void {
                        if ( newCharSet == 'UTF16LE' ) {
                                charSet = newCharSet;
                        } else {
                                charSet = 'UTF8';
                        }
                }
                
                public function setBomInc(newBomInc:Boolean):void {
                        incBom = newBomInc;
                }
                
                public function clearText():void {
                        clipText = '';
                }
                
                public function appendText(newText:String):void {
                        clipText += newText;
                }
                
                public function setText(newText:String):void {
                        clipText = newText;
                }
                
                public function setFileName(newFileName:String):void {
                        fileName = newFileName;
                }
                
                public function setAction(newAction:String):void {
                        action = newAction;
                }
                
                public function setHandCursor(enabled:Boolean):void {
                        // control whether the hand cursor is shown on rollover (true)
                        // or the default arrow cursor (false)
                        button.useHandCursor = enabled;
                }
                
                
                private function clickHandler(event:Event):void {
                        var fileRef:FileReference = new FileReference();
                        fileRef.addEventListener(Event.COMPLETE, saveComplete);
                        
                        if ( action == "save" ) {
                                /* Save as a file */
                                if ( charSet == 'UTF16LE' ) {
                                        fileRef.save( strToUTF16LE(clipText), fileName );
                                } else {
                                        fileRef.save( strToUTF8(clipText), fileName );
                                }
                        } else if ( action == "pdf" ) {
                                /* Save as a PDF */
                                var pdf:PDF = configPdf();
                                fileRef.save( pdf.save( Method.LOCAL ), fileName );
                        } else {
                                /* Copy the text to the clipboard. Note charset and BOM have no effect here */
                                System.setClipboard( clipText );
                                ExternalInterface.call( 'ZeroClipboard.dispatch', domId, 'complete', clipText );
                        }
                }
                
                
                private function saveComplete(event:Event):void {
                        ExternalInterface.call( 'ZeroClipboard.dispatch', domId, 'complete', clipText );
                }
                
                
                private function getProp( prop:String, opts:Array ):String
                {
                        var i:int, iLen:int;
                        for ( i=0, iLen=opts.length ; i<iLen ; i++ )
                        {
                                if ( opts[i].indexOf( prop+":" ) != -1 )
                                {
                                        return opts[i].replace( prop+":", "" );
                                }
                        }
                        return "";
                }
                
                
                private function configPdf():PDF
                {
                        var
                                pdf:PDF,
                                i:int, iLen:int,
                                splitText:Array    = clipText.split("--/TableToolsOpts--\n"),
                                opts:Array         = splitText[0].split("\n"),
                                dataIn:Array       = splitText[1].split("\n"),
                                aColRatio:Array    = getProp( 'colWidth', opts ).split('\t'),
                                title:String       = getProp( 'title', opts ),
                                message:String     = getProp( 'message', opts ),
                                orientation:String = getProp( 'orientation', opts ),
                                size:String        = getProp( 'size', opts ),
                                iPageWidth:int     = 0,
                                dataOut:Array      = [],
                                columns:Array      = [],
                                headers:Array,
                                y:int = 0;
                        
                        /* Create the PDF */
                        pdf = new PDF( Orientation[orientation.toUpperCase()], Unit.MM, Size[size.toUpperCase()] );
                        pdf.setDisplayMode( Display.FULL_WIDTH );
                        pdf.addPage();
                        iPageWidth = pdf.getCurrentPage().w-20;
                        pdf.textStyle( new RGBColor(0), 1 );
                        
                        /* Add the title / message if there is one */
                        pdf.setFont( new CoreFont(FontFamily.HELVETICA), 14 );
                        if ( title != "" )
                        {
                                pdf.writeText(11, title+"\n");
                        }
                        
                        pdf.setFont( new CoreFont(FontFamily.HELVETICA), 11 );
                        if ( message != "" )
                        {
                                pdf.writeText(11, message+"\n");
                        }
                        
                        /* Data setup. Split up the headers, and then construct the columns */
                        for ( i=0, iLen=dataIn.length ; i<iLen ; i++ )
                        {
                                if ( dataIn[i] != "" )
                                {
                                        dataOut.push( dataIn[i].split("\t") );
                                }
                        }
                        headers = dataOut.shift();
                        
                        for ( i=0, iLen=headers.length ; i<iLen ; i++ )
                        {
                                columns.push( new GridColumn( " \n"+headers[i]+"\n ", i.toString(), aColRatio[i]*iPageWidth, 'C' ) );
                        }
                        
                        var grid:Grid = new Grid(
                                dataOut,                  /* 1. data */
                                iPageWidth,               /* 2. width */
                                100,                      /* 3. height */
                                new RGBColor (0xE0E0E0),  /* 4. headerColor */
                                new RGBColor (0xFFFFFF),  /* 5. backgroundColor */
                                true,                     /* 6. alternateRowColor */
                                new RGBColor ( 0x0 ),     /* 7. borderColor */
                                .1,                       /* 8. border alpha */
                                null,                     /* 9. joins */
                                columns                   /* 10. columns */
                        );
                        
                        pdf.addGrid( grid, 0, y );
                        return pdf;
                }
                
                
                /*
                 * Function: strToUTF8
                 * Purpose:  Convert a string to the output utf-8
                 * Returns:  ByteArray
                 * Inputs:   String
                 */
                private function strToUTF8( str:String ):ByteArray {
                        var utf8:ByteArray = new ByteArray();
                        
                        /* BOM first */
                        if ( incBom ) {
                                utf8.writeByte( 0xEF );
                                utf8.writeByte( 0xBB );
                                utf8.writeByte( 0xBF );
                        }
                        utf8.writeUTFBytes( str );
                        
                        return utf8;
                }
                
                
                /*
                 * Function: strToUTF16LE
                 * Purpose:  Convert a string to the output utf-16
                 * Returns:  ByteArray
                 * Inputs:   String
                 * Notes:    The fact that this function is needed is a little annoying. Basically, strings in
                 *   AS3 are UTF-16 (with surrogate pairs and everything), but characters which take up less
                 *   than 8 bytes appear to be stored as only 8 bytes. This function effective adds the 
                 *   padding required, and the BOM
                 */
                private function strToUTF16LE( str:String ):ByteArray {
                        var utf16:ByteArray = new ByteArray();
                        var iChar:uint;
                        var i:uint=0, iLen:uint = str.length;
                        
                        /* BOM first */
                        if ( incBom ) {
                                utf16.writeByte( 0xFF );
                                utf16.writeByte( 0xFE );
                        }
                        
                        while ( i < iLen ) {
                                iChar = str.charCodeAt(i);
                                
                                if ( iChar < 0xFF ) {
                                        /* one byte char */
                                        utf16.writeByte( iChar );
                                        utf16.writeByte( 0 );
                                } else {
                                        /* two byte char */
                                        utf16.writeByte( iChar & 0x00FF );
                                        utf16.writeByte( iChar >> 8 );
                                }
                                
                                i++;
                        }
                        
                        return utf16;
                }
        }
}