160 lines
5.6 KiB
HTML
160 lines
5.6 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<title>Horizontal Slider with two thumbs</title>
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<style type="text/css">
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/*margin and padding on body element
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can introduce errors in determining
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element position and are not recommended;
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we turn them off as a foundation for YUI
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CSS treatments. */
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body {
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margin:0;
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padding:0;
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}
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</style>
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<link rel="stylesheet" type="text/css" href="../../build/fonts/fonts-min.css" />
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<link rel="stylesheet" type="text/css" href="../../build/slider/assets/skins/sam/slider.css" />
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<script type="text/javascript" src="../../build/yahoo-dom-event/yahoo-dom-event.js"></script>
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<script type="text/javascript" src="../../build/animation/animation-min.js"></script>
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<script type="text/javascript" src="../../build/dragdrop/dragdrop-min.js"></script>
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<script type="text/javascript" src="../../build/slider/slider-min.js"></script>
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<!--there is no custom header content for this example-->
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</head>
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<body class="yui-skin-sam">
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<h1>Horizontal Slider with two thumbs</h1>
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<div class="exampleIntro">
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<p>This example demonstrates a simple horizontal dual-thumb Slider implementation. Some characteristics to note include the following:</p>
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<ul>
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<li>The thumbs are set on a slide bar with a 200 pixel range.</li>
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<li>A minimum distance is provided, preventing the thumbs from coming within 10 pixels of each other.</li>
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<li>Initial min and max values are supplied as 100 and 130 respectively.</li>
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<li>Clicking on the background will animate the nearest thumb.</li>
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<li>Min and Max value offsets are calculated from the <strong>center</strong> of the thumbs and must be accounted for conversion calculations.</li>
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</ul>
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</div>
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<!--BEGIN SOURCE CODE FOR EXAMPLE =============================== -->
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<div id="demo_bg" class="yui-h-slider" title="Range slider">
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<div id="demo_min_thumb" class="yui-slider-thumb"><img src="assets/left-thumb.png"></div>
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<div id="demo_max_thumb" class="yui-slider-thumb"><img src="assets/right-thumb.png"></div>
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</div>
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<p>Raw values:
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<label>Min: <input type="text" id="demo_from" size="3" maxlength="3" value=""></label>
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<label>Max: <input type="text" id="demo_to" size="3" maxlength="3" value=""></label>
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<button id="demo_btn">Update Slider</button>
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<h3>Converted values:</h3>
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<p id="demo_info"></p>
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<script type="text/javascript">
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(function () {
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YAHOO.namespace('example');
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var Dom = YAHOO.util.Dom;
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// Slider has a range of 200 pixels
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var range = 200;
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// No ticks for this example
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var tickSize = 0;
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// We'll set a minimum distance the thumbs can be from one another
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var minThumbDistance = 10;
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// Initial values for the thumbs
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var initValues = [100,130];
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// Conversion factor from 0-200 pixels to 100-1000
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// Note 20 pixels are subtracted from the range to account for the
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// thumb values calculated from their center point (10 pixels from
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// the center of the left thumb + 10 pixels from the center of the
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// right thumb)
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var cf = 900/(range - 20);
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// Set up a function to convert the min and max values into something useful
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var convert = function (val) {
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return Math.round(val * cf + 100);
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};
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// Slider set up is done when the DOM is ready
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YAHOO.util.Event.onDOMReady(function () {
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var demo_bg = Dom.get("demo_bg"),
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info = Dom.get("demo_info"),
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from = Dom.get("demo_from"),
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to = Dom.get("demo_to");
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// Create the DualSlider
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var slider = YAHOO.widget.Slider.getHorizDualSlider(demo_bg,
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"demo_min_thumb", "demo_max_thumb",
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range, tickSize, initValues);
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slider.minRange = minThumbDistance;
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// Custom function to update the text fields, the converted value
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// report and the slider's title attribute
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var updateUI = function () {
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from.value = slider.minVal;
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to.value = slider.maxVal;
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// Update the converted values and the slider's title.
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// Account for the thumb width offsetting the value range by
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// subtracting the thumb width from the max value.
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var min = convert(slider.minVal),
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max = convert(slider.maxVal - 20);
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info.innerHTML = "MIN: <strong>" + min + "</strong><br>" +
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"MAX: <strong>" + max + "</strong>";
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demo_bg.title = "Current range " + min + " - " + max;
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};
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// Subscribe to the dual thumb slider's change and ready events to
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// report the state.
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slider.subscribe('ready', updateUI);
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slider.subscribe('change', updateUI);
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// Wire up the button to update the slider
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YAHOO.util.Event.on('demo_btn','click',function () {
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// Get the int values from the inputs
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var min = Math.abs(parseInt(from.value,10)|0),
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max = Math.abs(parseInt(to.value,10)|0);
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if (min > max) {
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var hold = min;
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min = max;
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max = hold;
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}
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// Verify the values are in range
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min = Math.min(min,range - 30);
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max = Math.max(Math.min(max,range),min + 20 + minThumbDistance);
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// Set the new values on the slider
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slider.setValues(min,max);
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});
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// Attach the slider to the YAHOO.example namespace for public probing
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YAHOO.example.slider = slider;
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});
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})();
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</script>
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<!--END SOURCE CODE FOR EXAMPLE =============================== -->
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</body>
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</html>
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