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| /**
* Angular JS slider directive
*
* (c) Rafal Zajac <rzajac@gmail.com>
* http://github.com/rzajac/angularjs-slider
*
* Version: v2.1.0
*
* Licensed under the MIT license
*/
/*jslint unparam: true */
/*global angular: false, console: false, define, module */
(function (root, factory) {
'use strict';
Iif (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define(['angular'], factory);
} else Iif (typeof module === 'object' && module.exports) {
// Node. Does not work with strict CommonJS, but
// only CommonJS-like environments that support module.exports,
// like Node.
// to support bundler like browserify
module.exports = factory(require('angular'));
} else {
// Browser globals (root is window)
factory(root.angular);
}
}(this, function (angular) {
'use strict';
var module = angular.module('rzModule', [])
.factory('RzSliderOptions', function () {
var defaultOptions = {
floor: 0,
ceil: null, //defaults to rz-slider-model
step: 1,
precision: 0,
id: null,
translate: null,
stepsArray: null,
draggableRange: false,
showSelectionBar: false,
hideLimitLabels: false,
readOnly: false,
disabled: false,
interval: 350,
showTicks: false,
showTicksValues: false,
ticksValuesTooltip: null,
vertical: false,
keyboardSupport: true,
scale: 1,
onStart: null,
onChange: null,
onEnd: null
};
var globalOptions = {};
var factory = {};
/**
* `options({})` allows global configuration of all sliders in the
* application.
*
* var app = angular.module( 'App', ['rzModule'], function( RzSliderOptions ) {
* // show ticks for all sliders
* RzSliderOptions.options( { showTicks: true } );
* });
*/
factory.options = function (value) {
angular.extend(globalOptions, value);
};
factory.getOptions = function (options) {
return angular.extend({}, defaultOptions, globalOptions, options);
};
return factory;
})
.value('rzThrottle',
/**
* rzThrottle
*
* Taken from underscore project
*
* @param {Function} func
* @param {number} wait
* @param {ThrottleOptions} options
* @returns {Function}
*/
function throttle(func, wait, options) {
'use strict';
var getTime = (Date.now || function () {
return new Date().getTime();
});
var context, args, result;
var timeout = null;
var previous = 0;
options = options || {};
var later = function () {
previous = options.leading === false ? 0 : getTime();
timeout = null;
result = func.apply(context, args);
context = args = null;
};
return function () {
var now = getTime();
Iif (!previous && options.leading === false) {
previous = now;
}
var remaining = wait - (now - previous);
context = this;
args = arguments;
Eif (remaining <= 0) {
clearTimeout(timeout);
timeout = null;
previous = now;
result = func.apply(context, args);
context = args = null;
} else if (!timeout && options.trailing !== false) {
timeout = setTimeout(later, remaining);
}
return result;
};
})
.factory('RzSlider', function ($timeout, $document, $window, $compile, RzSliderOptions, rzThrottle) {
'use strict';
/**
* Slider
*
* @param {ngScope} scope The AngularJS scope
* @param {Element} sliderElem The slider directive element wrapped in jqLite
* @constructor
*/
var Slider = function (scope, sliderElem) {
/**
* The slider's scope
*
* @type {ngScope}
*/
this.scope = scope;
/**
* Slider element wrapped in jqLite
*
* @type {jqLite}
*/
this.sliderElem = sliderElem;
/**
* Slider type
*
* @type {boolean} Set to true for range slider
*/
this.range = this.scope.rzSliderModel !== undefined && this.scope.rzSliderHigh !== undefined;
/**
* Values recorded when first dragging the bar
*
* @type {Object}
*/
this.dragging = {
active: false,
value: 0,
difference: 0,
offset: 0,
lowDist: 0,
highDist: 0
};
/**
* property that handle position (defaults to left for horizontal)
* @type {string}
*/
this.positionProperty = 'left';
/**
* property that handle dimension (defaults to width for horizontal)
* @type {string}
*/
this.dimensionProperty = 'width';
/**
* Half of the width or height of the slider handles
*
* @type {number}
*/
this.handleHalfDim = 0;
/**
* Maximum position the slider handle can have
*
* @type {number}
*/
this.maxPos = 0;
/**
* Precision
*
* @type {number}
*/
this.precision = 0;
/**
* Step
*
* @type {number}
*/
this.step = 0;
/**
* The name of the handle we are currently tracking
*
* @type {string}
*/
this.tracking = '';
/**
* Minimum value (floor) of the model
*
* @type {number}
*/
this.minValue = 0;
/**
* Maximum value (ceiling) of the model
*
* @type {number}
*/
this.maxValue = 0;
/**
* The delta between min and max value
*
* @type {number}
*/
this.valueRange = 0;
/**
* Set to true if init method already executed
*
* @type {boolean}
*/
this.initHasRun = false;
// Slider DOM elements wrapped in jqLite
this.fullBar = null; // The whole slider bar
this.selBar = null; // Highlight between two handles
this.minH = null; // Left slider handle
this.maxH = null; // Right slider handle
this.flrLab = null; // Floor label
this.ceilLab = null; // Ceiling label
this.minLab = null; // Label above the low value
this.maxLab = null; // Label above the high value
this.cmbLab = null; // Combined label
this.ticks = null; // The ticks
// Initialize slider
this.init();
};
// Add instance methods
Slider.prototype = {
/**
* Initialize slider
*
* @returns {undefined}
*/
init: function () {
var thrLow, thrHigh,
calcDimFn = angular.bind(this, this.calcViewDimensions),
self = this;
this.applyOptions();
this.initElemHandles();
this.manageElementsStyle();
this.addAccessibility();
this.setDisabledState();
this.calcViewDimensions();
this.setMinAndMax();
$timeout(function () {
self.updateCeilLab();
self.updateFloorLab();
self.initHandles();
self.manageEventsBindings();
});
// Recalculate slider view dimensions
this.scope.$on('reCalcViewDimensions', calcDimFn);
// Recalculate stuff if view port dimensions have changed
angular.element($window).on('resize', calcDimFn);
Iif (this.options.vertical)
this.sliderElem.addClass('vertical');
this.initHasRun = true;
// Watch for changes to the model
thrLow = rzThrottle(function () {
self.setMinAndMax();
self.updateLowHandle(self.valueToOffset(self.scope.rzSliderModel));
self.updateSelectionBar();
self.updateTicksScale();
self.updateAriaAttributes();
Iif (self.range) {
self.updateCmbLabel();
}
}, self.options.interval);
thrHigh = rzThrottle(function () {
self.setMinAndMax();
self.updateHighHandle(self.valueToOffset(self.scope.rzSliderHigh));
self.updateSelectionBar();
self.updateTicksScale();
self.updateCmbLabel();
self.updateAriaAttributes();
}, self.options.interval);
this.scope.$on('rzSliderForceRender', function () {
self.resetLabelsValue();
thrLow();
if (self.range) {
thrHigh();
}
self.resetSlider();
});
// Watchers
this.scope.$watch('rzSliderModel', function (newValue, oldValue) {
if (newValue === oldValue)
return;
thrLow();
});
this.scope.$watch('rzSliderHigh', function (newValue, oldValue) {
Eif (newValue === oldValue)
return;
if (newValue != null)
thrHigh();
if (self.range && newValue == null || !self.range && newValue != null) {
self.applyOptions();
self.resetSlider();
}
});
this.scope.$watch('rzSliderOptions', function (newValue, oldValue) {
Eif (newValue === oldValue)
return;
self.applyOptions();
self.resetSlider();
}, true);
this.scope.$on('$destroy', function () {
self.unbindEvents();
angular.element($window).off('resize', calcDimFn);
});
},
/**
* Read the user options and apply them to the slider model
*/
applyOptions: function () {
this.options = RzSliderOptions.getOptions(this.scope.rzSliderOptions);
Iif (this.options.step <= 0)
this.options.step = 1;
this.range = this.scope.rzSliderModel !== undefined && this.scope.rzSliderHigh !== undefined;
this.options.draggableRange = this.range && this.options.draggableRange;
this.options.showTicks = this.options.showTicks || this.options.showTicksValues;
Iif (this.options.stepsArray) {
this.options.floor = 0;
this.options.ceil = this.options.stepsArray.length - 1;
this.options.step = 1;
this.customTrFn = function (value) {
return this.options.stepsArray[value];
};
} else Iif (this.options.translate)
this.customTrFn = this.options.translate;
else
this.customTrFn = function (value) {
return String(value);
};
Iif (this.options.vertical) {
this.positionProperty = 'bottom';
this.dimensionProperty = 'height';
}
},
/**
* Resets slider
*
* @returns {undefined}
*/
resetSlider: function () {
this.manageElementsStyle();
this.setMinAndMax();
this.updateCeilLab();
this.updateFloorLab();
this.unbindEvents();
this.manageEventsBindings();
this.setDisabledState();
this.calcViewDimensions();
},
/**
* Set the slider children to variables for easy access
*
* Run only once during initialization
*
* @returns {undefined}
*/
initElemHandles: function () {
// Assign all slider elements to object properties for easy access
angular.forEach(this.sliderElem.children(), function (elem, index) {
var jElem = angular.element(elem);
switch (index) {
case 0:
this.fullBar = jElem;
break;
case 1:
this.selBar = jElem;
break;
case 2:
this.minH = jElem;
break;
case 3:
this.maxH = jElem;
break;
case 4:
this.flrLab = jElem;
break;
case 5:
this.ceilLab = jElem;
break;
case 6:
this.minLab = jElem;
break;
case 7:
this.maxLab = jElem;
break;
case 8:
this.cmbLab = jElem;
break;
case 9:
this.ticks = jElem;
break;
}
}, this);
// Initialize offset cache properties
this.selBar.rzsp = 0;
this.minH.rzsp = 0;
this.maxH.rzsp = 0;
this.flrLab.rzsp = 0;
this.ceilLab.rzsp = 0;
this.minLab.rzsp = 0;
this.maxLab.rzsp = 0;
this.cmbLab.rzsp = 0;
},
/** Update each elements style based on options
*
*/
manageElementsStyle: function () {
Eif (!this.range)
this.maxH.css('display', 'none');
else
this.maxH.css('display', null);
this.alwaysHide(this.flrLab, this.options.showTicksValues || this.options.hideLimitLabels);
this.alwaysHide(this.ceilLab, this.options.showTicksValues || this.options.hideLimitLabels);
this.alwaysHide(this.minLab, this.options.showTicksValues);
this.alwaysHide(this.maxLab, this.options.showTicksValues || !this.range);
this.alwaysHide(this.cmbLab, this.options.showTicksValues || !this.range);
this.alwaysHide(this.selBar, !this.range && !this.options.showSelectionBar);
Eif (!this.options.showTicks)
this.ticks.html('');
Iif (this.options.draggableRange)
this.selBar.addClass('rz-draggable');
else
this.selBar.removeClass('rz-draggable');
},
alwaysHide: function (el, hide) {
el.rzAlwaysHide = hide;
if (hide)
this.hideEl(el);
else
this.showEl(el)
},
/**
* Manage the events bindings based on readOnly and disabled options
*
* @returns {undefined}
*/
manageEventsBindings: function () {
if (this.options.disabled || this.options.readOnly)
this.unbindEvents();
else if (!this.options.disabled || !this.options.readOnly)
this.bindEvents();
},
/**
* Set the disabled state based on rzSliderDisabled
*
* @returns {undefined}
*/
setDisabledState: function () {
Iif (this.options.disabled) {
this.sliderElem.attr('disabled', 'disabled');
} else {
this.sliderElem.attr('disabled', null);
}
},
/**
* Reset label values
*
* @return {undefined}
*/
resetLabelsValue: function () {
this.minLab.rzsv = undefined;
this.maxLab.rzsv = undefined;
},
/**
* Initialize slider handles positions and labels
*
* Run only once during initialization and every time view port changes size
*
* @returns {undefined}
*/
initHandles: function () {
this.updateLowHandle(this.valueToOffset(this.scope.rzSliderModel));
/*
the order here is important since the selection bar should be
updated after the high handle but before the combined label
*/
if (this.range)
this.updateHighHandle(this.valueToOffset(this.scope.rzSliderHigh));
this.updateSelectionBar();
if (this.range)
this.updateCmbLabel();
this.updateTicksScale();
},
/**
* Translate value to human readable format
*
* @param {number|string} value
* @param {jqLite} label
* @param {boolean} [useCustomTr]
* @returns {undefined}
*/
translateFn: function (value, label, useCustomTr) {
useCustomTr = useCustomTr === undefined ? true : useCustomTr;
var valStr = String((useCustomTr ? this.customTrFn(value, this.options.id) : value)),
getDimension = false;
Eif (label.rzsv === undefined || label.rzsv.length !== valStr.length || (label.rzsv.length > 0 && label.rzsd === 0)) {
getDimension = true;
label.rzsv = valStr;
}
label.text(valStr);
// Update width only when length of the label have changed
Eif (getDimension) {
this.getDimension(label);
}
},
/**
* Set maximum and minimum values for the slider and ensure the model and high
* value match these limits
* @returns {undefined}
*/
setMinAndMax: function () {
this.step = +this.options.step;
this.precision = +this.options.precision;
this.scope.rzSliderModel = this.roundStep(this.scope.rzSliderModel);
Iif (this.range)
this.scope.rzSliderHigh = this.roundStep(this.scope.rzSliderHigh);
this.minValue = this.roundStep(+this.options.floor);
if (this.options.ceil != null)
this.maxValue = this.roundStep(+this.options.ceil);
else
this.maxValue = this.options.ceil = this.range ? this.scope.rzSliderHigh : this.scope.rzSliderModel;
this.valueRange = this.maxValue - this.minValue;
},
/**
* Adds accessibility attributes
*
* Run only once during initialization
*
* @returns {undefined}
*/
addAccessibility: function () {
this.minH.attr('role', 'slider');
this.updateAriaAttributes();
Eif (this.options.keyboardSupport)
this.minH.attr('tabindex', '0');
Iif (this.options.vertical)
this.minH.attr('aria-orientation', 'vertical');
Iif (this.range) {
this.maxH.attr('role', 'slider');
if (this.options.keyboardSupport)
this.maxH.attr('tabindex', '0');
if (this.options.vertical)
this.maxH.attr('aria-orientation', 'vertical');
}
},
/**
* Updates aria attributes according to current values
*/
updateAriaAttributes: function () {
this.minH.attr('aria-valuenow', this.scope.rzSliderModel);
this.minH.attr('aria-valuetext', this.customTrFn(this.scope.rzSliderModel));
this.minH.attr('aria-valuemin', this.minValue);
this.minH.attr('aria-valuemax', this.maxValue);
Iif (this.range) {
this.maxH.attr('aria-valuenow', this.scope.rzSliderHigh);
this.maxH.attr('aria-valuetext', this.customTrFn(this.scope.rzSliderHigh));
this.maxH.attr('aria-valuemin', this.minValue);
this.maxH.attr('aria-valuemax', this.maxValue);
}
},
/**
* Calculate dimensions that are dependent on view port size
*
* Run once during initialization and every time view port changes size.
*
* @returns {undefined}
*/
calcViewDimensions: function () {
var handleWidth = this.getDimension(this.minH);
this.handleHalfDim = handleWidth / 2;
this.barDimension = this.getDimension(this.fullBar);
this.maxPos = this.barDimension - handleWidth;
this.getDimension(this.sliderElem);
this.sliderElem.rzsp = this.sliderElem[0].getBoundingClientRect()[this.positionProperty];
Iif (this.initHasRun) {
this.updateFloorLab();
this.updateCeilLab();
this.initHandles();
}
},
/**
* Update the ticks position
*
* @returns {undefined}
*/
updateTicksScale: function () {
Eif (!this.options.showTicks) return;
if (!this.step) return; //if step is 0, the following loop will be endless.
var positions = '',
ticksCount = Math.round((this.maxValue - this.minValue) / this.step) + 1;
for (var i = 0; i < ticksCount; i++) {
var value = this.roundStep(this.minValue + i * this.step);
var selectedClass = this.isTickSelected(value) ? 'selected' : '';
positions += '<li class="tick ' + selectedClass + '">';
if (this.options.showTicksValues) {
var tooltip = '';
if (this.options.ticksValuesTooltip) {
tooltip = 'uib-tooltip="' + this.options.ticksValuesTooltip(value) + '"';
if (this.options.vertical)
tooltip += ' tooltip-placement="right"'
}
positions += '<span ' + tooltip + ' class="tick-value">' + this.getDisplayValue(value) + '</span>';
}
positions += '</li>';
}
this.ticks.html(positions);
if (this.options.ticksValuesTooltip)
$compile(this.ticks.contents())(this.scope);
},
isTickSelected: function (value) {
if (!this.range && this.options.showSelectionBar && value <= this.scope.rzSliderModel)
return true;
if (this.range && value >= this.scope.rzSliderModel && value <= this.scope.rzSliderHigh)
return true;
return false;
},
/**
* Update position of the ceiling label
*
* @returns {undefined}
*/
updateCeilLab: function () {
this.translateFn(this.maxValue, this.ceilLab);
this.setPosition(this.ceilLab, this.barDimension - this.ceilLab.rzsd);
this.getDimension(this.ceilLab);
},
/**
* Update position of the floor label
*
* @returns {undefined}
*/
updateFloorLab: function () {
this.translateFn(this.minValue, this.flrLab);
this.getDimension(this.flrLab);
},
/**
* Call the onStart callback if defined
*
* @returns {undefined}
*/
callOnStart: function () {
if (this.options.onStart) {
var self = this;
$timeout(function () {
self.options.onStart(self.options.id);
});
}
},
/**
* Call the onChange callback if defined
*
* @returns {undefined}
*/
callOnChange: function () {
Iif (this.options.onChange) {
var self = this;
$timeout(function () {
self.options.onChange(self.options.id);
});
}
},
/**
* Call the onEnd callback if defined
*
* @returns {undefined}
*/
callOnEnd: function () {
if (this.options.onEnd) {
var self = this;
$timeout(function () {
self.options.onEnd(self.options.id);
});
}
},
/**
* Update slider handles and label positions
*
* @param {string} which
* @param {number} newOffset
*/
updateHandles: function (which, newOffset) {
Eif (which === 'rzSliderModel') {
this.updateLowHandle(newOffset);
this.updateSelectionBar();
this.updateTicksScale();
Iif (this.range) {
this.updateCmbLabel();
}
return;
}
if (which === 'rzSliderHigh') {
this.updateHighHandle(newOffset);
this.updateSelectionBar();
this.updateTicksScale();
if (this.range) {
this.updateCmbLabel();
}
return;
}
// Update both
this.updateLowHandle(newOffset);
this.updateHighHandle(newOffset);
this.updateSelectionBar();
this.updateTicksScale();
this.updateCmbLabel();
},
/**
* Update low slider handle position and label
*
* @param {number} newOffset
* @returns {undefined}
*/
updateLowHandle: function (newOffset) {
this.setPosition(this.minH, newOffset);
this.translateFn(this.scope.rzSliderModel, this.minLab);
var pos = Math.min(Math.max(newOffset - this.minLab.rzsd / 2 + this.handleHalfDim, 0), this.barDimension - this.ceilLab.rzsd);
this.setPosition(this.minLab, pos);
this.shFloorCeil();
},
/**
* Update high slider handle position and label
*
* @param {number} newOffset
* @returns {undefined}
*/
updateHighHandle: function (newOffset) {
this.setPosition(this.maxH, newOffset);
this.translateFn(this.scope.rzSliderHigh, this.maxLab);
var pos = Math.min((newOffset - this.maxLab.rzsd / 2 + this.handleHalfDim), (this.barDimension - this.ceilLab.rzsd));
this.setPosition(this.maxLab, pos);
this.shFloorCeil();
},
/**
* Show / hide floor / ceiling label
*
* @returns {undefined}
*/
shFloorCeil: function () {
var flHidden = false,
clHidden = false;
Iif (this.minLab.rzsp <= this.flrLab.rzsp + this.flrLab.rzsd + 5) {
flHidden = true;
this.hideEl(this.flrLab);
} else {
flHidden = false;
this.showEl(this.flrLab);
}
Iif (this.minLab.rzsp + this.minLab.rzsd >= this.ceilLab.rzsp - this.handleHalfDim - 10) {
clHidden = true;
this.hideEl(this.ceilLab);
} else {
clHidden = false;
this.showEl(this.ceilLab);
}
Iif (this.range) {
if (this.maxLab.rzsp + this.maxLab.rzsd >= this.ceilLab.rzsp - 10) {
this.hideEl(this.ceilLab);
} else if (!clHidden) {
this.showEl(this.ceilLab);
}
// Hide or show floor label
if (this.maxLab.rzsp <= this.flrLab.rzsp + this.flrLab.rzsd + this.handleHalfDim) {
this.hideEl(this.flrLab);
} else if (!flHidden) {
this.showEl(this.flrLab);
}
}
},
/**
* Update slider selection bar, combined label and range label
*
* @returns {undefined}
*/
updateSelectionBar: function () {
this.setDimension(this.selBar, Math.abs(this.maxH.rzsp - this.minH.rzsp) + this.handleHalfDim);
this.setPosition(this.selBar, this.range ? this.minH.rzsp + this.handleHalfDim : 0);
},
/**
* Update combined label position and value
*
* @returns {undefined}
*/
updateCmbLabel: function () {
var lowTr, highTr;
if (this.minLab.rzsp + this.minLab.rzsd + 10 >= this.maxLab.rzsp) {
lowTr = this.getDisplayValue(this.scope.rzSliderModel);
highTr = this.getDisplayValue(this.scope.rzSliderHigh);
this.translateFn(lowTr + ' - ' + highTr, this.cmbLab, false);
var pos = Math.min(Math.max((this.selBar.rzsp + this.selBar.rzsd / 2 - this.cmbLab.rzsd / 2), 0), (this.barDimension - this.cmbLab.rzsd));
this.setPosition(this.cmbLab, pos);
this.hideEl(this.minLab);
this.hideEl(this.maxLab);
this.showEl(this.cmbLab);
} else {
this.showEl(this.maxLab);
this.showEl(this.minLab);
this.hideEl(this.cmbLab);
}
},
/**
* Return the translated value if a translate function is provided else the original value
* @param value
* @returns {*}
*/
getDisplayValue: function (value) {
return this.customTrFn(value, this.options.id);
},
/**
* Round value to step and precision
*
* @param {number} value
* @returns {number}
*/
roundStep: function (value) {
var step = this.step,
remainder = +((value - this.minValue) % step).toFixed(3),
steppedValue = remainder > (step / 2) ? value + step - remainder : value - remainder;
steppedValue = steppedValue.toFixed(this.precision);
return +steppedValue;
},
/**
* Hide element
*
* @param element
* @returns {jqLite} The jqLite wrapped DOM element
*/
hideEl: function (element) {
return element.css({
opacity: 0
});
},
/**
* Show element
*
* @param element The jqLite wrapped DOM element
* @returns {jqLite} The jqLite
*/
showEl: function (element) {
Iif (!!element.rzAlwaysHide) {
return element;
}
return element.css({
opacity: 1
});
},
/**
* Set element left/top offset depending on whether slider is horizontal or vertical
*
* @param {jqLite} elem The jqLite wrapped DOM element
* @param {number} pos
* @returns {number}
*/
setPosition: function (elem, pos) {
elem.rzsp = pos;
var css = {};
css[this.positionProperty] = pos + 'px';
elem.css(css);
return pos;
},
/**
* Get element width/height depending on whether slider is horizontal or vertical
*
* @param {jqLite} elem The jqLite wrapped DOM element
* @returns {number}
*/
getDimension: function (elem) {
var val = elem[0].getBoundingClientRect();
Iif (this.options.vertical)
elem.rzsd = (val.bottom - val.top) * this.options.scale;
else
elem.rzsd = (val.right - val.left) * this.options.scale;
return elem.rzsd;
},
/**
* Set element width/height depending on whether slider is horizontal or vertical
*
* @param {jqLite} elem The jqLite wrapped DOM element
* @param {number} dim
* @returns {number}
*/
setDimension: function (elem, dim) {
elem.rzsd = dim;
var css = {};
css[this.dimensionProperty] = dim + 'px';
elem.css(css);
return dim;
},
/**
* Translate value to pixel offset
*
* @param {number} val
* @returns {number}
*/
valueToOffset: function (val) {
return (this.sanitizeValue(val) - this.minValue) * this.maxPos / this.valueRange || 0;
},
/**
* Returns a value that is within slider range
*
* @param {number} val
* @returns {number}
*/
sanitizeValue: function (val) {
return Math.min(Math.max(val, this.minValue), this.maxValue);
},
/**
* Translate offset to model value
*
* @param {number} offset
* @returns {number}
*/
offsetToValue: function (offset) {
return (offset / this.maxPos) * this.valueRange + this.minValue;
},
// Events
/**
* Get the X-coordinate or Y-coordinate of an event
*
* @param {Object} event The event
* @returns {number}
*/
getEventXY: function (event) {
/* http://stackoverflow.com/a/12336075/282882 */
//noinspection JSLint
var clientXY = this.options.vertical ? 'clientY' : 'clientX';
if (clientXY in event) {
return event[clientXY];
}
return event.originalEvent === undefined ?
event.touches[0][clientXY] : event.originalEvent.touches[0][clientXY];
},
/**
* Compute the event position depending on whether the slider is horizontal or vertical
* @param event
* @returns {number}
*/
getEventPosition: function (event) {
var sliderPos = this.sliderElem.rzsp,
eventPos = 0;
if (this.options.vertical)
eventPos = -this.getEventXY(event) + sliderPos;
else
eventPos = this.getEventXY(event) - sliderPos;
return (eventPos - this.handleHalfDim) * this.options.scale;
},
/**
* Get the handle closest to an event.
*
* @param event {Event} The event
* @returns {jqLite} The handle closest to the event.
*/
getNearestHandle: function (event) {
if (!this.range) {
return this.minH;
}
var offset = this.getEventPosition(event);
return Math.abs(offset - this.minH.rzsp) < Math.abs(offset - this.maxH.rzsp) ? this.minH : this.maxH;
},
/**
* Bind mouse and touch events to slider handles
*
* @returns {undefined}
*/
bindEvents: function () {
if (this.options.readOnly || this.options.disabled) return;
var barTracking, barStart, barMove;
if (this.options.draggableRange) {
barTracking = 'rzSliderDrag';
barStart = this.onDragStart;
barMove = this.onDragMove;
} else {
barTracking = 'rzSliderModel';
barStart = this.onStart;
barMove = this.onMove;
}
this.minH.on('mousedown', angular.bind(this, this.onStart, this.minH, 'rzSliderModel'));
if (this.range) {
this.maxH.on('mousedown', angular.bind(this, this.onStart, this.maxH, 'rzSliderHigh'));
}
this.fullBar.on('mousedown', angular.bind(this, this.onStart, null, null));
this.fullBar.on('mousedown', angular.bind(this, this.onMove, this.fullBar));
this.selBar.on('mousedown', angular.bind(this, barStart, null, barTracking));
this.selBar.on('mousedown', angular.bind(this, barMove, this.selBar));
this.ticks.on('mousedown', angular.bind(this, this.onStart, null, null));
this.ticks.on('mousedown', angular.bind(this, this.onMove, this.ticks));
this.minH.on('touchstart', angular.bind(this, this.onStart, this.minH, 'rzSliderModel'));
if (this.range) {
this.maxH.on('touchstart', angular.bind(this, this.onStart, this.maxH, 'rzSliderHigh'));
}
this.fullBar.on('touchstart', angular.bind(this, this.onStart, null, null));
this.fullBar.on('touchstart', angular.bind(this, this.onMove, this.fullBar));
this.selBar.on('touchstart', angular.bind(this, barStart, null, barTracking));
this.selBar.on('touchstart', angular.bind(this, barMove, this.selBar));
this.ticks.on('touchstart', angular.bind(this, this.onStart, null, null));
this.ticks.on('touchstart', angular.bind(this, this.onMove, this.ticks));
if (this.options.keyboardSupport) {
this.minH.on('focus', angular.bind(this, this.onPointerFocus, this.minH, 'rzSliderModel'))
if (this.range) {
this.maxH.on('focus', angular.bind(this, this.onPointerFocus, this.maxH, 'rzSliderHigh'));
}
}
},
/**
* Unbind mouse and touch events to slider handles
*
* @returns {undefined}
*/
unbindEvents: function () {
this.minH.off();
this.maxH.off();
this.fullBar.off();
this.selBar.off();
this.ticks.off();
},
/**
* onStart event handler
*
* @param {?Object} pointer The jqLite wrapped DOM element; if null, the closest handle is used
* @param {?string} ref The name of the handle being changed; if null, the closest handle's value is modified
* @param {Event} event The event
* @returns {undefined}
*/
onStart: function (pointer, ref, event) {
var ehMove, ehEnd,
eventNames = this.getEventNames(event);
event.stopPropagation();
event.preventDefault();
// We have to do this in case the HTML where the sliders are on
// have been animated into view.
this.calcViewDimensions();
if (pointer) {
this.tracking = ref;
} else {
pointer = this.getNearestHandle(event);
this.tracking = pointer === this.minH ? 'rzSliderModel' : 'rzSliderHigh';
}
pointer.addClass('rz-active');
if (this.options.keyboardSupport)
pointer[0].focus();
ehMove = angular.bind(this, this.dragging.active ? this.onDragMove : this.onMove, pointer);
ehEnd = angular.bind(this, this.onEnd, ehMove);
$document.on(eventNames.moveEvent, ehMove);
$document.one(eventNames.endEvent, ehEnd);
this.callOnStart();
},
/**
* onMove event handler
*
* @param {jqLite} pointer
* @param {Event} event The event
* @returns {undefined}
*/
onMove: function (pointer, event) {
var newOffset = this.getEventPosition(event),
newValue;
if (newOffset <= 0) {
if (pointer.rzsp === 0)
return;
newValue = this.minValue;
newOffset = 0;
} else if (newOffset >= this.maxPos) {
if (pointer.rzsp === this.maxPos)
return;
newValue = this.maxValue;
newOffset = this.maxPos;
} else {
newValue = this.offsetToValue(newOffset);
newValue = this.roundStep(newValue);
newOffset = this.valueToOffset(newValue);
}
this.positionTrackingHandle(newValue, newOffset);
},
/**
* onEnd event handler
*
* @param {Event} event The event
* @param {Function} ehMove The the bound move event handler
* @returns {undefined}
*/
onEnd: function (ehMove, event) {
var moveEventName = this.getEventNames(event).moveEvent;
if (!this.options.keyboardSupport) {
this.minH.removeClass('rz-active');
this.maxH.removeClass('rz-active');
this.tracking = '';
}
this.dragging.active = false;
$document.off(moveEventName, ehMove);
this.scope.$emit('slideEnded');
this.callOnEnd();
},
onPointerFocus: function (pointer, ref, event) {
this.tracking = ref;
pointer.one('blur', angular.bind(this, this.onPointerBlur, pointer));
pointer.on('keydown', angular.bind(this, this.onKeyboardEvent));
pointer.addClass('rz-active');
},
onPointerBlur: function (pointer, event) {
pointer.off('keydown');
this.tracking = '';
pointer.removeClass('rz-active');
},
onKeyboardEvent: function (event) {
var currentValue = this.scope[this.tracking];
var keyCode = event.keyCode || event.which;
var keys = {
38: 'UP',
40: 'DOWN',
37: 'LEFT',
39: 'RIGHT',
33: 'PAGEUP',
34: 'PAGEDOWN',
36: 'HOME',
35: 'END'
};
var actions = {
UP: currentValue + this.step,
DOWN: currentValue - this.step,
LEFT: currentValue - this.step,
RIGHT: currentValue + this.step,
PAGEUP: currentValue + this.valueRange / 10,
PAGEDOWN: currentValue - this.valueRange / 10,
HOME: this.minValue,
END: this.maxValue
};
var key = keys[keyCode];
var action = actions[key];
Iif (action == null || this.tracking === '') return;
event.preventDefault();
var newValue = this.roundStep(this.sanitizeValue(action)),
newOffset = this.valueToOffset(newValue);
var switched = this.positionTrackingHandle(newValue, newOffset);
Iif (switched) {
var pointer = this.tracking === 'rzSliderModel' ? this.minH : this.maxH;
pointer[0].focus(); //to focus the correct pointer
}
},
/**
* onDragStart event handler
*
* Handles dragging of the middle bar.
*
* @param {Object} pointer The jqLite wrapped DOM element
* @param {string} ref One of the refLow, refHigh values
* @param {Event} event The event
* @returns {undefined}
*/
onDragStart: function (pointer, ref, event) {
var offset = this.getEventPosition(event);
this.dragging = {
active: true,
value: this.offsetToValue(offset),
difference: this.scope.rzSliderHigh - this.scope.rzSliderModel,
offset: offset,
lowDist: offset - this.minH.rzsp,
highDist: this.maxH.rzsp - offset
};
this.minH.addClass('rz-active');
this.maxH.addClass('rz-active');
this.onStart(pointer, ref, event);
},
/**
* onDragMove event handler
*
* Handles dragging of the middle bar.
*
* @param {jqLite} pointer
* @param {Event} event The event
* @returns {undefined}
*/
onDragMove: function (pointer, event) {
var newOffset = this.getEventPosition(event),
newMinOffset, newMaxOffset,
newMinValue, newMaxValue;
if (newOffset <= this.dragging.lowDist) {
if (pointer.rzsp === this.dragging.lowDist) {
return;
}
newMinValue = this.minValue;
newMinOffset = 0;
newMaxValue = this.minValue + this.dragging.difference;
newMaxOffset = this.valueToOffset(newMaxValue);
} else if (newOffset >= this.maxPos - this.dragging.highDist) {
if (pointer.rzsp === this.dragging.highDist) {
return;
}
newMaxValue = this.maxValue;
newMaxOffset = this.maxPos;
newMinValue = this.maxValue - this.dragging.difference;
newMinOffset = this.valueToOffset(newMinValue);
} else {
newMinValue = this.offsetToValue(newOffset - this.dragging.lowDist);
newMinValue = this.roundStep(newMinValue);
newMinOffset = this.valueToOffset(newMinValue);
newMaxValue = newMinValue + this.dragging.difference;
newMaxOffset = this.valueToOffset(newMaxValue);
}
this.positionTrackingBar(newMinValue, newMaxValue, newMinOffset, newMaxOffset);
},
/**
* Set the new value and offset for the entire bar
*
* @param {number} newMinValue the new minimum value
* @param {number} newMaxValue the new maximum value
* @param {number} newMinOffset the new minimum offset
* @param {number} newMaxOffset the new maximum offset
*/
positionTrackingBar: function (newMinValue, newMaxValue, newMinOffset, newMaxOffset) {
this.scope.rzSliderModel = newMinValue;
this.scope.rzSliderHigh = newMaxValue;
this.updateHandles('rzSliderModel', newMinOffset);
this.updateHandles('rzSliderHigh', newMaxOffset);
this.scope.$apply();
this.callOnChange();
},
/**
* Set the new value and offset to the current tracking handle
*
* @param {number} newValue new model value
* @param {number} newOffset new offset value
* @returns {Boolean} flag that indicates if min and max pointers have been switched.
*/
positionTrackingHandle: function (newValue, newOffset) {
var switched = false;
Iif (this.range) {
/* This is to check if we need to switch the min and max handles*/
if (this.tracking === 'rzSliderModel' && newValue >= this.scope.rzSliderHigh) {
switched = true;
this.scope[this.tracking] = this.scope.rzSliderHigh;
this.updateHandles(this.tracking, this.maxH.rzsp);
this.updateAriaAttributes();
this.tracking = 'rzSliderHigh';
this.minH.removeClass('rz-active');
this.maxH.addClass('rz-active');
/* We need to apply here because we are not sure that we will enter the next block */
this.scope.$apply();
this.callOnChange();
} else if (this.tracking === 'rzSliderHigh' && newValue <= this.scope.rzSliderModel) {
switched = true;
this.scope[this.tracking] = this.scope.rzSliderModel;
this.updateHandles(this.tracking, this.minH.rzsp);
this.updateAriaAttributes();
this.tracking = 'rzSliderModel';
this.maxH.removeClass('rz-active');
this.minH.addClass('rz-active');
/* We need to apply here because we are not sure that we will enter the next block */
this.scope.$apply();
this.callOnChange();
}
}
Eif (this.scope[this.tracking] !== newValue) {
this.scope[this.tracking] = newValue;
this.updateHandles(this.tracking, newOffset);
this.updateAriaAttributes();
this.scope.$apply();
this.callOnChange();
}
return switched;
},
/**
* Get event names for move and event end
*
* @param {Event} event The event
*
* @return {{moveEvent: string, endEvent: string}}
*/
getEventNames: function (event) {
var eventNames = {
moveEvent: '',
endEvent: ''
};
if (event.touches || (event.originalEvent !== undefined && event.originalEvent.touches)) {
eventNames.moveEvent = 'touchmove';
eventNames.endEvent = 'touchend';
} else {
eventNames.moveEvent = 'mousemove';
eventNames.endEvent = 'mouseup';
}
return eventNames;
}
};
return Slider;
})
.directive('rzslider', function (RzSlider) {
'use strict';
return {
restrict: 'E',
scope: {
rzSliderModel: '=?',
rzSliderHigh: '=?',
rzSliderOptions: '=?',
rzSliderTplUrl: '@'
},
/**
* Return template URL
*
* @param {jqLite} elem
* @param {Object} attrs
* @return {string}
*/
templateUrl: function (elem, attrs) {
//noinspection JSUnresolvedVariable
return attrs.rzSliderTplUrl || 'rzSliderTpl.html';
},
link: function (scope, elem) {
return new RzSlider(scope, elem);
}
};
});
// IDE assist
/**
* @name ngScope
*
* @property {number} rzSliderModel
* @property {number} rzSliderHigh
* @property {Object} rzSliderOptions
*/
/**
* @name jqLite
*
* @property {number|undefined} rzsp rzslider label position offset
* @property {number|undefined} rzsd rzslider element dimension
* @property {string|undefined} rzsv rzslider label value/text
* @property {Function} css
* @property {Function} text
*/
/**
* @name Event
* @property {Array} touches
* @property {Event} originalEvent
*/
/**
* @name ThrottleOptions
*
* @property {boolean} leading
* @property {boolean} trailing
*/
/*templateReplacement*/
return module
}));
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