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Modal windows are interactive pop-up windows that focus the user on the content inside the window; they're a great way to add attention-grabbing content to your site.
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<!--=====================================
FORM MODAL
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We’re done building the main page, but the
site still needs to let users register for
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the conference.
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Instead of creating and displaying the
registration form in a separate HTML page,
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we’re going to display it inside
a modal window like this.
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Modal windows are interactive pop
up windows that focus the user on
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the content inside the window.
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They are a great way to add attention
grabbing content to your site like
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an important announcement or other
important content relevant to your site.
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When you visit the modal sections of
the docs you'll be presented with
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the examples and snippets available for
Bootstrap's modal component.
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For example,
this modal component includes a header,
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body, and set of actions in its footer.
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You can see an example of how it looks
by launching the demo modal below it.
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You're so able to use bootstrap grid
system within a modal and change and
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modal size from small to large.
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So back an index.html, all the way
at the bottom below the container's
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closing div tag, so outside of
the container I'm going to add a large
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HTML comment flag to indicate
where the modal component starts.
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So now to quickly add
a modal window to the site,
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I'll copy the modal snippet from
the live demo example here.
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I'll paste it into the document and
customize the html.
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So now I'll change the modal title.
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To Register for Full Stack Conf.
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And we're not going to build
the form in this video.
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We'll do that in the next
section of this course.
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For now, I'll add placeholder
text inside the modal-body div.
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We'll say form goes here.
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So even though I've included
the modal code snippet in my HTML,
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we don't see it in the browser yet.
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Well, that's because modal
components are initially hidden.
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Their display is set to none by default.
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To open a modal,
you must define a trigger button.
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That is a button that when
clicked displays the modal.
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So our page will have two trigger buttons.
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The Register Now button
in the jumbotron and
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the call out button below the schedule.
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In the docs example,
I see that to create a trigger button,
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you add data toggle and data target
attributes to a button's opening tag.
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And the data target value needs to match
the id given to the modal component.
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So back in my HTML I'll change
my modal divs id to register.
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Now we're going to use this id value in
our trigger buttons to target the modal.
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While we're here let's
also change the aria-labelled
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by value to register form.
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So first we'll make the callout button,
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a trigger button,
by copying the button data toggle and
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data target attributes
from the docs example.
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And pasting it inside the callout
buttons' opening button tag.
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Then changing the data-target
value to #register,
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to match the idea we gave the modal.
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I'll go ahead and copy these two
attributes, then scroll up and
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paste them inside
the Jumbotron register button.
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So I'll paste those attributes in the
opening tag of the register now button.
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All right, let's have a look.
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I'll refresh the page.
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And clicking the two trigger
buttons fades the modal in from
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the top of the page, great.
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And you can close the modal by
clicking outside the modal window or
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one of the close buttons and
icons provided.
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And if you want to display a smaller or
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larger modal window in your page, you can
change the size using a modifier class.
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For example,
adding the class modal-lg in the modal
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dialog div makes the modal wider.
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Now I personally like
the default modal size.
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So I'll remove the class modal-lg
from my modal-dialog div.
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And you can leave your
modal wider if you prefer.
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