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Frames

Frames. Recognize a web page that uses a frame Identify advantages and disadvantages of using frames Be aware of web accessibility issues when using frames Use the <frameset> and <frames> tags to create a frameset Use the <noframes> tag to display content when frames are not supported

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Frames

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  1. Frames • Recognize a web page that uses a frame • Identify advantages and disadvantages of using frames • Be aware of web accessibility issues when using frames • Use the <frameset> and <frames> tags to create a frameset • Use the <noframes> tag to display content when frames are not supported • Create hyperlinks that target frames • Use the <iframes> tag to create an inline frame

  2. Overviewof Frames • Frames allow the use of multiple, independently controllable sections in a browser window. • Each section is called a "frame" and is created as a separate XHTML file. • Behind the scenes there is another file -- a "master" frameset file that controls the configuration of the entire browser window. • http://www.webgrrls.com • http://www.panynj.gov/aviation/jfkframe.HTM

  3. Possible advantages ofUsing Frames • Ease of Navigation • Ease of Maintenance • Degrades Gracefully • Unifies Resources

  4. Disadvantages ofUsing Frames • Not Universally Supported • Not in future W3C Recommendations • Bookmark Issues • Accessibility Issues DON’T use unless really need capabilities!

  5. Questions • 1. List three disadvantages of designing a web site with frames. Which disadvantage seems most important to you? Why? • 2. How would you respond to a person who claims that you should never design a web site using frames? Explain. • 3. True or False. A web site created using frames is more accessible than a web site that does not use frames.

  6. XHTMLUsing Frames • <frameset> tag • Used to divide up the browser window • Container tag • <frames> tag • Used to configure a single frame or portion of the browser window • Stand alone tag • <noframes> tag • Used to configure content that should display if the browser does not support frames • Container tag

  7. Sample FramesetDTD & header <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Sample Frameset</title> </head>

  8. Sample FramesetXHTML <frameset rows = "150, *"> <frame name="banner" title="CircleSoft Company Logo" src="banner.htm" scrolling="no" /> <frameset cols="100,*"> <frame name="navigation" title="CircleSoft Site Navigation" src="nav.htm" /> <frame name="main" title="CirclSoft Site Content" src="main.htm" /> </frameset> <noframes> <body> <h1>CircleSoft Web Design</h1> <a href="nav.htm">Site Links</a> </body> </noframes> </frameset> </html>

  9. XHTML <frameset> tag • The frameset tag • Attributes: • bordercolor • cols • frameborder • framespacing • rows • title

  10. XHTML <frame> tag • The frame tag • Attributes: • bordercolor • frameborder • id • longdesc • marginheight • marginwidth • name • noresize • scrolling • src • target • title

  11. XHTML<base> tag • The base tag <base target=“main” /> • Used to configure the default target for all the links on an entire web page • Stand alone tag • Coded in the header section

  12. InlineFrames • Also called floating frame • Can be placed in the body of a web page

  13. XHTML<iframe> tag • The iframe tag <iframe src="trillium.htm" title="Trillium Wild Flower" height="200" align="right" name="flower" width="330"> Description of the lovely Spring wild flower, the <a href="trillium.htm" target="_blank">Trillium</a></iframe> • Used to configure the default target for all the links on an entire web page • Container tag

  14. XHTML<iframe> tag • Attributes • align • frameborder • height • id • longdesc • marginheight • marginwidth • name • scrolling • src • title • width

  15. Questions • 1. Describe the uses of the area contained between the opening and closing <noframes> tags. • 2. You have created a frameset but the links in the navigation frame do not open in the frame you designed to hold the content. What might be the reason? How would you correct this? • 3. Describe how the title attribute can be used on a <frame> tag to

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