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/*!
* Piwik - free/libre analytics platform
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
(function ($) {
$(document).ready(function () {
var donateAmounts = [0, 30, 60, 90, 120];
// returns the space between each donation amount in the donation slider
var getTickWidth = function (slider) {
var effectiveSliderWidth = $('.slider-range', slider).width() - $('.slider-position', slider).width();
return effectiveSliderWidth / (donateAmounts.length - 1);
};
// returns the position index on a slider based on a x coordinate value
var getPositionFromPageCoord = function (slider, pageX) {
return Math.round((pageX - $('.slider-range', slider).offset().left) / getTickWidth(slider));
};
// set's the correct amount text & smiley face image based on the position of the slider
var setSmileyFaceAndAmount = function (slider, pos) {
// set text yearly amount
$('.slider-donate-amount', slider).text('$' + donateAmounts[pos] + '/' + _pk_translate('Intl_Year_Short'));
// set the right smiley face
$('.slider-smiley-face').attr('src', 'plugins/Morpheus/images/smileyprog_' + pos + '.png');
// set the hidden option input for paypal
var option = Math.max(1, pos);
$('.piwik-donate-call input[name=os0]').val("Option " + option);
};
// move's a slider's position to a specific spot
var moveSliderPosition = function (slider, to) {
// make sure 'to' is valid
if (to < 0) {
to = 0;
}
else if (to >= donateAmounts.length) {
to = donateAmounts.length - 1;
}
// set the slider position
var left = to * getTickWidth(slider);
if (left == 0) {
left = -1; // at position 0 we move one pixel left to cover up some of slider bar
}
$('.slider-position', slider).css({
left: left + 'px'
});
// reset the smiley face & amount based on the new position
setSmileyFaceAndAmount(slider, to);
};
// when a slider is clicked, set the amount & smiley face appropriately
$('body').on('click', '.piwik-donate-slider>.slider-range', function (e) {
var slider = $(this).parent(),
currentPageX = $('.slider-position', this).offset().left,
currentPos = getPositionFromPageCoord(slider, currentPageX),
pos = getPositionFromPageCoord(slider, e.pageX);
// if the closest position is the current one, use the other position since
// the user obviously wants to move the slider.
if (currentPos == pos) {
// if click is to right, go forward one, else backwards one
if (e.pageX > currentPageX) {
++pos;
}
else {
--pos;
}
}
moveSliderPosition(slider, pos);
});
// when the smiley icon is clicked, move the position up one to demonstrate how to use the slider
$('body').on('click', '.piwik-donate-slider .slider-smiley-face,.piwik-donate-slider .slider-donate-amount',
function (e) {
var slider = $(this).closest('.piwik-donate-slider'),
currentPageX = $('.slider-position', slider).offset().left,
currentPos = getPositionFromPageCoord(slider, currentPageX);
moveSliderPosition(slider, currentPos + 1);
}
);
// stores the current slider being dragged
var draggingSlider = false;
// start dragging on mousedown for a slider's position bar
$('body').on('mousedown', '.piwik-donate-slider .slider-position', function () {
draggingSlider = $(this).parent().parent();
});
// move the slider position if currently dragging when the mouse moves anywhere over the entire page
$('body').on('mousemove', function (e) {
if (draggingSlider) {
var slider = draggingSlider.find('.slider-range'),
sliderPos = slider.find('.slider-position'),
left = e.pageX - slider.offset().left;
// only move slider if the mouse x-coord is still on the slider (w/ some padding for borders)
if (left <= slider.width() - sliderPos.width() + 2
&& left >= -2) {
sliderPos.css({left: left + 'px'});
var closestPos = Math.round(left / getTickWidth(draggingSlider));
setSmileyFaceAndAmount(draggingSlider, closestPos);
}
}
});
// stop dragging and normalize a slider's position on mouseup over the entire page
$('body').on('mouseup', function () {
if (draggingSlider) {
var sliderPos = $('.slider-position', draggingSlider),
slider = sliderPos.parent();
if (sliderPos.length) {
// move the slider to the nearest donation amount position
var pos = getPositionFromPageCoord(draggingSlider, sliderPos.offset().left);
moveSliderPosition(draggingSlider, pos);
}
draggingSlider = false; // stop dragging
}
});
// event for programatically changing the position
$('body').on('piwik:changePosition', '.piwik-donate-slider', function (e, data) {
moveSliderPosition(this, data.position);
});
});
}(jQuery));
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