Part IV: Scripting and (X)HTML in Java
Part IV: Scripting and (X)HTML Make PDF-417 2d Barcode In Java Using Barcode encoder for Java Control to generate, create PDF417 image in Java applications. Don t worry about the details of the JavaScript code in the following examples Just focus on how JavaScript scripts can be pasted into your Web page to work alongside your HTML markup Barcode Drawer In Java Using Barcode drawer for Java Control to generate, create barcode image in Java applications. Using JavaScript to Arrange Content Dynamically
Scanning Barcode In Java Using Barcode decoder for Java Control to read, scan read, scan image in Java applications. JavaScript can be used with Cascading Style Sheets (CSS; covered in s 9 12) to change the look of a page s content in response to a user action Here s an example: Two writers share a blog named Backup Brain (www backupbraincom) One of the writers prefers small, sans serif type, and the other one finds it easier to read larger, serif type, so the blog has buttons that change the look of the site to match each person s preference Of course, site visitors can use the buttons to switch the look of the type, too, and the site remembers the visitor s choice for future visits by setting a cookie (a small preference file written to the user s computer) Figure 13-2 shows the two looks for the page Printing PDF 417 In C# Using Barcode maker for .NET Control to generate, create PDF 417 image in Visual Studio .NET applications. Figure 13-2: Change how text displays
PDF417 Creator In .NET Framework Using Barcode encoder for .NET framework Control to generate, create PDF 417 image in Visual Studio .NET applications. 13: Scripting Web Pages
PDF 417 Maker In VB.NET Using Barcode generator for .NET Control to generate, create PDF-417 2d barcode image in VS .NET applications. JavaScript and CSS create this effect by switching between two style sheets: The sans serif style sheet, sansStylecss The serif style sheet, serifStylecss Listing 13-1 shows the source code for an example page that contains the switching mechanism shown in Figure 13-2: When a user clicks the Sm Sans button on the page, the styleSwitcherjs script referenced in the <head> element runs and switches the active style sheet to sansStylecss (js is the file extension that s used with JavaScript files, as in the src value for the script element in Listing 13-1) When the user clicks the Lg Serif button, the same script switches to the serifStylecss style sheet Drawing Code128 In Java Using Barcode creator for Java Control to generate, create Code 128 Code Set C image in Java applications. Listing 13-1: Bar Code Generator In Java Using Barcode generator for Java Control to generate, create barcode image in Java applications. Style Switching
Bar Code Printer In Java Using Barcode printer for Java Control to generate, create bar code image in Java applications. <!DOCTYPE html PUBLIC -//W3C//DTD XHTML 10 Transitional//EN http://wwww3org/TR/xhtml1/DTD/xhtml1-transitionaldtd > <html xmlns= http://wwww3org/1999/xhtml lang= en xml:lang= en > <head> <title>Style Changer</title> <meta http-equiv= Content-Type content= text/html; charset=ISO-8859-1 /> <link href= simpleStylecss rel= stylesheet rev= stylesheet /> <link href= sansStylecss rel= stylesheet rev= stylesheet title= default /> <link href= serifStylecss rel= alternate stylesheet rev= alternate stylesheet title= serif /> <style type= text/css media= all >@import url( complexStylecss );</style> <script src= styleSwitcherjs language= javascript15 type= text/javascript ></script> </head> <body> <div class= navBar > <br />Change your font: <form action= none > <input type= button class= typeBtn value= Sm Sans onclick= setActiveStylesheet( default ) /> <input type= button class= typeBtn2 value= Lg Serif onclick= setActiveStylesheet( serif ) /> </form> </div> <div class= content id= headContent > <p>Replace this paragraph with your own content</p> </div> </body> </html> Painting UPC Code In Java Using Barcode creator for Java Control to generate, create UPC A image in Java applications. Part IV: Scripting and (X)HTML
Printing UCC.EAN - 128 In Java Using Barcode encoder for Java Control to generate, create GS1 128 image in Java applications. You can see the example page for yourself at wwwjavascriptworldcom/ js5e/scripts/chap16/ex6/indexhtml This example relies on several different files (HTML, CSS, and JavaScript) You can download all these files, if you d like, from wwwjavascriptworld com/js5e/scripts/indexhtml The Font Style Changer files appear in the 16 2 Of 7 Code Creation In Java Using Barcode creation for Java Control to generate, create 2 of 7 Code image in Java applications. Working with Browser Windows
Printing Code-39 In Visual Basic .NET Using Barcode generation for VS .NET Control to generate, create Code-39 image in VS .NET applications. JavaScript can tell your browser to open and close windows You ve probably seen an annoying version of this trick: advertising pop-up windows that appear when you try to leave a site (Let s not go there) This technology can be used for good as well as evil, though For example, you can preview a set of big image files with small thumbnail versions Clicking a thumbnail image can perform such actions as Opening a window with a larger version of the image Opening a page with a text link that opens a window with an illustration of that text, as shown in Figure 13-3 Decoding GTIN - 13 In .NET Framework Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications. Figure 13-3: When you click the link, a pop-up window appears with a picture in it
Paint USS Code 128 In .NET Framework Using Barcode maker for .NET Control to generate, create ANSI/AIM Code 128 image in VS .NET applications. 13: Scripting Web Pages
Generating Barcode In VB.NET Using Barcode generator for .NET Control to generate, create bar code image in .NET applications. The code required to do this sort of pop-up window is fairly straightforward, as Listing 13-2 shows with its invocation of the windowopen function Bar Code Creator In .NET Framework Using Barcode maker for VS .NET Control to generate, create barcode image in .NET applications. Listing 13-2: GTIN - 12 Generation In VS .NET Using Barcode generation for VS .NET Control to generate, create UPC A image in .NET applications. Pop-up Windows
Barcode Generator In Visual C#.NET Using Barcode creator for VS .NET Control to generate, create bar code image in .NET framework applications. <!DOCTYPE html PUBLIC -//W3C//DTD XHTML 10 Transitional//EN http://wwww3org/TR/xhtml1/DTD/xhtml1-transitionaldtd > <html xmlns= http://wwww3org/1999/xhtml > <head> <title>Opening a Window</title> <script language= Javascript type= text/javascript > function newWindow() { catWindow = windowopen( images/pixel2jpg , catWin , width=330,height=250 ) } </script> </head> <body bgcolor= #FFFFFF > <h1>The Master of the House</h1> <h2>Click on His name to behold He Who Must Be Adored<br /><br /> <a href= javascript:newWindow() >Pixel</a></h2> </body> </html> Bar Code Generation In .NET Using Barcode creation for Visual Studio .NET Control to generate, create bar code image in .NET applications. Pop-up windows are no longer a best practice and should be used with caution Overuse of pop-up windows can backfire on you Many Web sites use pop-up windows to deliver ads, so users are becoming desensitized (or hostile) to them and simply ignore them (or install software that prevents them) Also, some Web browsers such as Firefox, Safari, and Internet Explorer automatically block pop-up windows by default these days Before you add a pop-up window to your site, be sure that it s absolutely necessary Then, alert your visitors that you ll be using pop-ups so they can instruct their Web browsers to permit them to appear
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