java code 39 barcode Dreamweaver s Selection Manipulation Methods in Java

Creating ECC200 in Java Dreamweaver s Selection Manipulation Methods

Dreamweaver s Selection Manipulation Methods
Generating Data Matrix In Java
Using Barcode printer for Java Control to generate, create Data Matrix image in Java applications.
ECC200 Reader In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
6: Applications
Barcode Creation In Java
Using Barcode encoder for Java Control to generate, create barcode image in Java applications.
Barcode Recognizer In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
All of these methods are called from a document object, which is usually obtained from a call to dreamweavergetDocumentDOM() For example, the following code illustrates the process of retrieving the selected node, surrounding it with a bold tag (<B></B>) and adding an ID attribute of "somenode"
Make Data Matrix 2d Barcode In C#
Using Barcode creation for VS .NET Control to generate, create ECC200 image in VS .NET applications.
Painting Data Matrix 2d Barcode In VS .NET
Using Barcode creator for ASP.NET Control to generate, create Data Matrix image in ASP.NET applications.
var oSelectedObj; oSelectedObj = dwgetDocumentDOM()getSelectedNode(); oSelectedObjsetAttribute("ID","somenode"); oSelectedObjouterHTML = "<B>" + oSelectedObjouterHTML + "</B>";
Draw ECC200 In .NET Framework
Using Barcode creator for .NET Control to generate, create Data Matrix 2d barcode image in Visual Studio .NET applications.
Generate DataMatrix In VB.NET
Using Barcode generation for .NET framework Control to generate, create Data Matrix image in .NET framework applications.
Examining Document Content
UCC - 12 Generator In Java
Using Barcode maker for Java Control to generate, create EAN 128 image in Java applications.
Making Data Matrix In Java
Using Barcode creator for Java Control to generate, create DataMatrix image in Java applications.
In addition to modifying document nodes directly using the innerHTML and outerHTML methods, Dreamweaver provides support for the W3C standard getElementsByTagName() method Thus, you can write code that works just like it does in the browser, with very minimal changes Recall from 5 our function for finding images in a browser page that did not have an ALT attribute defined:
Universal Product Code Version A Creator In Java
Using Barcode creator for Java Control to generate, create UPC A image in Java applications.
EAN / UCC - 13 Encoder In Java
Using Barcode generator for Java Control to generate, create GTIN - 13 image in Java applications.
function checkAltTags() { var oImgList = documentgetElementsByTagName("img"); var i=0; if (oImgListlength > 0) { for (i=0; i<oImgListlength; i++) { var altText = oImgListitem(i)getAttribute("alt"); if (altText == "") alert("Image: " + oImgListitem(i)src + " has no ALT attribute!"); } } }
Printing 2 Of 5 Industrial In Java
Using Barcode creator for Java Control to generate, create 2/5 Standard image in Java applications.
ECC200 Generation In Visual Basic .NET
Using Barcode generator for .NET framework Control to generate, create Data Matrix 2d barcode image in Visual Studio .NET applications.
To turn this code into a Dreamweaver extension that looks for images with no ALT attributes is very straightforward First, to operate on the currently active document, you need to call the getDocumentDOM() method This means you need to change the line that reads
Drawing Code128 In .NET
Using Barcode creation for .NET framework Control to generate, create Code 128C image in .NET applications.
UPCA Reader In C#.NET
Using Barcode scanner for .NET framework Control to read, scan read, scan image in VS .NET applications.
var oImgList = documentgetElementsByTagName("img");
Code 3 Of 9 Generation In Visual Studio .NET
Using Barcode generator for ASP.NET Control to generate, create USS Code 39 image in ASP.NET applications.
Printing Code 39 Full ASCII In Objective-C
Using Barcode generation for iPad Control to generate, create Code 39 Extended image in iPad applications.
The Document Object Model: Processing Structured Documents
ANSI/AIM Code 128 Generation In Java
Using Barcode maker for BIRT Control to generate, create ANSI/AIM Code 128 image in BIRT applications.
Printing UPC - 13 In None
Using Barcode generator for Online Control to generate, create GS1 - 13 image in Online applications.
to read
var oImgList = dreamweavergetDocumentDOM()getElementsByTagName("img");
This will return a list of all of the IMG tags in the document Now, you need to find images that have no ALT attribute It turns out that Dreamweaver s implementation of the getAttribute() method returns null in the case that an attribute is not specified instead of an empty string, so you need to change the line that reads
if (altText == "")
to read
if (altText == null)
Now, you need to package the whole thing up as a Command extension and save it in the Commands folder The following code shows the finished command:
<HTML> <HEAD> <TITLE>Check Missing ALT attributes</TITLE> <SCRIPT> function checkAltAttrs() { var oImgList = dwgetDocumentDOM()getElementsByTagName("img"); var i=0; if (oImgListlength > 0) { for (i=0; i<oImgListlength; i++) { var altText = oImgListitem(i)getAttribute("alt"); if (altText == null) alert("Image: " + oImgListitem(i)src + " has no ALT attribute!"); } } } </SCRIPT> </HEAD> <BODY onLoad="checkAltAttrs()"> </BODY> </HTML>
6: Applications
When this command is saved in the Commands folder, it appears in Dreamweaver s Commands menu When invoked by the user, it examines the current Dreamweaver document for images with missing ALT attributes and displays an alert if it finds any
Serializing Documents
To save a document to disk, an extension can call the saveDocument() method from the dreamweaver object The function takes two arguments: the first argument is the DOM of the document to save, and the second argument is the file URL to save the document to The following code, for example, saves the current document to the root of the C drive on the user s computer:
dreamweaversaveDocument(dreamweavergetDocumentDOM(), "file://C|/myfilehtml");
Where to Get More Information About the Dreamweaver DOM
These examples just barely scratch the surface of what can be accomplished with Dreamweaver extensions To learn more about writing Dreamweaver extensions, the Macromedia Exchange website is a good place to get information about extending Dreamweaver (macromediacom/exchange/dreamweaver) There is an SDK available for download, and most of the extensions available on the site are free and can be downloaded and examined in depth (after all, most are just HTML and JavaScript files) Dreamweaver also ships with online documentation detailing the workings of the Dreamweaver extensibility mechanism; it can be found under the Help menu by choosing Extending Dreamweaver There are also several books available that deal with extending Dreamweaver, such as Dreamweaver 4: The Complete Reference by Jennifer Kettell (McGraw-Hill/Osborne, 2001) and Building Dreamweaver 4 and UltraDev 4 Extensions (McGraw-Hill/Osborne, 2001) by Tom Muck and Ray West Both are very good sources of information for building Dreamweaver extensions
Copyright © OnBarcode.com . All rights reserved.