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Support passing a callback to "add" #7

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Support passing a callback to "add" #7

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120a795
Adding a callback type of handler
weotch Sep 24, 2018
dbffc35
Adding a destroy option
weotch Sep 24, 2018
8b1cf75
Add the watcher to the callback
weotch Sep 25, 2018
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18 changes: 18 additions & 0 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,15 @@
return getNumber(easing, start, end, ratio);
}

function CallbackParallax (element, callback) {
this.element = element;
this.callback = callback;
}

CallbackParallax.prototype.handleScroll = function (ratio, distance, watcher) {
this.callback(ratio, distance, watcher)
};

function OptionsParallax (element, options, container) {
container = container || scrollMonitor;
this.options = options;
Expand Down Expand Up @@ -144,12 +153,21 @@
var newItem;
if (typeof optionsOrSpeed === 'number') {
newItem = new SpeedParallax(element, optionsOrSpeed);
} else if (typeof optionsOrSpeed === 'function') {
newItem = new CallbackParallax(element, optionsOrSpeed);
} else {
newItem = new OptionsParallax(element, optionsOrSpeed, this.container);
}

this.items.push(newItem);
};

Root.prototype.destroy = function () {
if (this.watcher) {
this.items = []
this.watcher.destroy()
}
}

return {
create: function (item, offsets, container) {
Expand Down