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• Table of Contents• Reviews• CD-ROM• Reader Reviews• Errata• AcademicDreamweaver MX 2004: The Missing ManualBy
David Sawyer McFarland Publisher: O''ReillyPub Date: February 2004ISBN: 0-596-00631-4Pages: 840Slots: 1.0
Dreamweaver MX 2004: The Missing Manual
enables both first-time and experienced web designers to
bring stunning, interactive web sites to life. What sets
this new edition apart is the crystal-clear writing, welcome
humor, and exclusive features. With over 500 illustrations,
a handcrafted index, and the clarity of thought that has
made bestsellers of every Missing Manual to date, this new
edition is the ultimate atlas for Dreamweaver MX 2004.
17.6 Create and Use Library Items
To create a Library item, start by opening the Library window. Choose Window - >
Assets, and click the Library items button (it looks like an open book, as shown in
Figure 17-4) to reveal the Library category.
Now select the part of your document that you wish to save as a Library item: a blob
of text, a graphic, or whatever.
Note, however, that Library items can only contain page elements that appear in the
document windowin other words, only HTML from the <body> of a Web page.
You can't include anything that appears in the <head> of a page, like Cascading Style
Sheets, Dreamweaver Behaviors (Chapter 12), or meta tags. Furthermore, Library items
must include a complete set of HTML tagsboth an opening and closing tagas
well as all tags necessary to complete the original object. For example, Dreamweaver
won't let you turn just a single cell, row, or column in a table into a Library item. If
you try, Dreamweaver will add the entire table to the Library.
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Next, add the selection to the Library. As you may expect, Dreamweaver provides
several ways to do this:
Drag the highlighted selection into the list of Library items.
Click the New Item button (Figure 17-4).
Choose Modify
LibraryAdd Object to Library.The new item appears in the Assets panel, bearing the jaunty name "Untitled." Just
type to replace that proposal with a more useful name, such as Copyright notice or
Logo. Your new Library element is ready to use.
NOTE
Even though you can't turn a CSS style into a Library item, you can turn HTML that has been styled
with CSS into a Library item. For example, you can add to the Library a paragraph that has a custom CSS
style applied to it. When you attempt to add this paragraph to the Library, Dreamweaver will warn you that
the item may not look the same when you place it in other documentsbecause the style sheet information
doesn't come along for the ride. To make sure the Library item appears correctly, make sure that you attach
the same style sheet to any page where you use that item. External style sheets (Section 6.1.2) make this easy.
The Asset panel's Library category lists the name, file size, and
location of each Library item in the current local site. When you
select a Library item from the list, you see a small preview. In
this example, the Library item "copyright" is a copyright notice.
17.6.1 Add Library Items to a Page
To add a Library item to a Web page, drag it directly out of the Assets panel's Library
items listing onto your page. (The long way: Click to plant your insertion point in
the Web page, click the Library item you want in the Assets panel, and click the Insert
button on the Assets panel, shown in Figure 17-4.)
NOTE
Library items (.lbi files) also appear in the Site panel in a site's Library folder. Dragging a Library item
from the Site panel to a page, however, doesn't insert it into the page. It merely opens the Library item for
editing.
When you insert a Library item into a Web page (or turn a selected item into a Library
item), it sprouts a light yellow background coloror, in the case of nontransparent
graphics, it takes on a gray, darkened look. The highlighting indicates that Dreamweaver
intends to treat the Library item as a single object, even though it may be
made of many different HTML elements. You can select it or drag it around, but you
can't change it.
Remember, too, that the placed Library item is linked to the original copy in the Library.
The copy in your document will change automatically to reflect any changes
you make to the copy in the Library, using the technique described next.
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) key when adding it to your document. Now the HTML on this page won't be updated when youPOWER USERS' CLINIC
Under the Hood of Library Items
Behind the scenes, Dreamweaver stores the HTML for
Library items in basic text files. Those files' names end with
the extension .lbi, and they stay in the Library folder inside
your local site folder (Section 14.1.1.2).
When you insert a Library item into a Web page, Dreamweaver
inserts the item's HTML and adds a set of comment
tags. These tags refer to the original Library file and help
Dreamweaver remember where the Library item begins
and ends. For instance, if you turned the text "Copyright
2004" into a Library item called copyright and inserted it
into a Web page, Dreamweaver would add the following
HTML to the page:
<!-- #BeginLibraryItem "/Library/copyright. lbi" -->
Copyright 2003<!-- #EndLibraryItem
-->
Although you can't edit a Library item on a page in Design
view, you can muck around with the code in Code view. In
the example above, you could change 2003 to 2004 in Code
view. Don't do it! Any changes you make will be obliterated
the next time you update the original Library item. If you want
to make a change to a Library item, edit the original Library
item, or detach the item from the Library (as described
above) and edit it.
