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Stopping auto play during user interaction

From: Set a Marquee to Autoplay with jQuery and Dreamweaver

Video: Stopping auto play during user interaction

So in order to stop the marquee from auto advancing we're going to use a hover function inside of jQuery to reset the autoPlay variable. So inside of the original script after our setinterval, we're going to come in here and we're going to type dollar sign, beginning and ending parenthesis, two tick marks inside, .marquee_container. Outside we're going to type dot, hover, beginning and ending parenthesis, semicolon. This hover function actually has two possible functions inside of it.

Stopping auto play during user interaction

So in order to stop the marquee from auto advancing we're going to use a hover function inside of jQuery to reset the autoPlay variable. So inside of the original script after our setinterval, we're going to come in here and we're going to type dollar sign, beginning and ending parenthesis, two tick marks inside, .marquee_container. Outside we're going to type dot, hover, beginning and ending parenthesis, semicolon. This hover function actually has two possible functions inside of it.

We're going to split this open. The first function is going to be triggered when the user rolls into this and the second functional will be trolled when the user rolls out of this object. So the first one we're going to type function, beginning and ending parenthesis, beginning and ending bracket, then I'm going to hit a comma, hit a new line, function, beginning and ending parenthesis, beginning and ending bracket, and we'll close this up. So inside of the first function which gets triggered on rollover, hit a few Returns and split the bracket open.

Inside of the function the first thing we're going to do, we're going to set the window.autoPlay equal to false. On the next line I'm going to type dollar sign, beginning and ending parenthesis, type the word this inside, which is going to target the marquee container, the object that this hover state is assigned to, .removeClass, beginning and ending parenthesis, semicolon.

Inside we're going to type autoplay, all lowercase to match the CSS rule we created in our CSS file. Inside of the second function, inside of the brackets let's split that open. When the user rolls outside of the marquee container, just type window.autoPlay = true. Now on the next line we want to reset the timePassed variable, just to make sure that when the user rolls off the marquee won't automatically advance immediately after they roll out.

We're going to type window.timePassed. We're going to set that equal to zero and last we're going to type $(this).addClass, beginning and ending parenthesis, semicolon, string literal. We're going to type autoplay, all lowercase, so we're going to add that CSS rule back onto this object. So quickly to recap, on hover this first function is going to run. When somebody rolls out or on no hover, it's going to go back to the original state.

autoPlay is going to be set to false up here on hover state and if we go back into our autoAdvance we see that we only trigger this auto trigger on the anchor links if autoPlay is equal to true. Now again, the script is going to be running every three seconds based on variable timeToChange up here, and so as it's going through the timer is still going to count, but if autoPlay is set to false, it's just going to sit there. So the user can interact with it and it's not going to auto advance for them. Now we also talked about in the introduction video the way this will work on mobile.

Now on mobile devices and tablets that are touch enabled, the hover state will be activated when the user touches the marquee to interact with it. So they will also get feedback that they have moved the marquee into a user interaction state. So at this point let's choose File > Save All. Back to our Index file, choose Preview in Browser, hit Reload. We should see our timer continue to count, timePassed equals timeToChange. It advances, current panel. Now when I roll into the marquee, notice that autoPlay now changes to false.

The timePassed variable is still counting, but when it gets to 3 like it did just now, it will reset to zero but we won't get our marquee advancing. So I can come in here now and interact with it. I can go to Slide1. There may be Slide4. Current panel is set to Slide4. I'm going to roll out of the marquee, watch the timePassed set itself back to zero, start counting to one, autoPlay is true, and then when timePassed equals the timeToChange the marquee will start to advance again. So that concludes adding an autoplay into the marquee. At this point, you might want to duplicate your JavaScript file and HTML file and keep the debugging code in here in case you want to make changes for the final shipping product for your web site.

You're going to want to go into the timeToChange variable and set it to something little higher, maybe six or seven seconds in order to give people enough time to read this, and remove all of the debug code in the JavaScript file and remove the debug divs inside of the HTML file.

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