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Mousewheel Events #374

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Mousewheel Events #374

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23 changes: 21 additions & 2 deletions src/rangeslider.js
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,9 @@
handleClass: 'rangeslider__handle',
startEvent: ['mousedown', 'touchstart', 'pointerdown'],
moveEvent: ['mousemove', 'touchmove', 'pointermove'],
endEvent: ['mouseup', 'touchend', 'pointerup']
endEvent: ['mouseup', 'touchend', 'pointerup'],
wheelEvent: ['wheel'],
wheelSelector: null
},
constants = {
orientation: {
Expand Down Expand Up @@ -238,11 +240,18 @@
this.startEvent = this.options.startEvent.join('.' + this.identifier + ' ') + '.' + this.identifier;
this.moveEvent = this.options.moveEvent.join('.' + this.identifier + ' ') + '.' + this.identifier;
this.endEvent = this.options.endEvent.join('.' + this.identifier + ' ') + '.' + this.identifier;
this.wheelEvent = this.options.wheelEvent.join('.' + this.identifier + ' ') + '.' + this.identifier;
this.toFixed = (this.step + '').replace('.', '').length - 1;
this.$fill = $('<div class="' + this.options.fillClass + '" />');
this.$handle = $('<div class="' + this.options.handleClass + '" />');
this.$range = $('<div class="' + this.options.rangeClass + ' ' + this.options[this.orientation + 'Class'] + '" id="' + this.identifier + '" />').insertAfter(this.$element).prepend(this.$fill, this.$handle);


if (this.options.wheelSelector) {
this.wheelSelector = this.options.wheelSelector;
} else {
this.wheelSelector = '#' + this.identifier + ':not(.' + this.options.disabledClass + ')';
}

// visually hide the input
this.$element.css({
'position': 'absolute',
Expand All @@ -256,6 +265,7 @@
this.handleDown = $.proxy(this.handleDown, this);
this.handleMove = $.proxy(this.handleMove, this);
this.handleEnd = $.proxy(this.handleEnd, this);
this.handleWheel = $.proxy(this.handleWheel, this);

this.init();

Expand All @@ -267,6 +277,7 @@
}, 20));

this.$document.on(this.startEvent, '#' + this.identifier + ':not(.' + this.options.disabledClass + ')', this.handleDown);
this.$document.on(this.wheelEvent, this.wheelSelector, this.handleWheel);

// Listen to programmatic value changes
this.$element.on('change.' + this.identifier, function(e, data) {
Expand Down Expand Up @@ -314,6 +325,14 @@
this.setPosition(this.position, triggerSlide);
};

Plugin.prototype.handleWheel = function(e) {
e.preventDefault();
var old_value = this.value;
var new_value = old_value + ((e.originalEvent.deltaY > 0) ? -1: 1);
console.log("[slider.wheel] " + old_value + " => " + new_value);
this.setPosition(this.getPositionFromValue(new_value));
};

Plugin.prototype.handleDown = function(e) {
e.preventDefault();

Expand Down