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jquery.gpopover.js
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jquery.gpopover.js
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/*
* jquery-gpopover-plugin
* https://github.com/markembling/jquery-gpopover-plugin
*
* A simple jQuery plugin for creating popover elements similar to Google's
* apps launcher/switcher.
*
* Copyright (c) 2013-2019 Mark Embling (markembling.info)
* Licensed under the BSD (3 clause) license.
*/
;(function($){
var GPopover = function(element, options) {
this.options = null;
this.$trigger = null;
this.$popover = null;
this.init(element, options);
}
GPopover.prototype.init = function(element, options) {
var that = this;
this.options = $.extend({}, $.fn.gpopover.defaults, options);
this.$trigger = $(element);
this.$popover = $('#' + this.$trigger.data('popover'));
this._addArrowElements();
if (this.options.preventHide) {
this._preventHideClickPropagation();
}
this.$trigger.click(function(e){
if (! that.$popover.is(":visible")) {
// Trigger a click on the parent element (that can bubble up)
$(this).parent().click();
that.show();
e.stopPropagation();
}
e.preventDefault();
});
}
GPopover.prototype.show = function() {
var that = this;
// Set width before showing
this.$popover.width(this.options.width);
// Show the popover
this.$popover.fadeIn(this.options.fadeInDuration);
// Set up hiding
$(document).one('click.popoverHide', function() {
// _hidePopover($popover, settings);
that.hide();
});
// Sort out the position (must be done after showing)
var triggerPos = this.$trigger.offset();
this.$popover.offset({
left: (triggerPos.left + (this.$trigger.outerWidth() / 2)) - (this.$popover.outerWidth() / 2),
top: triggerPos.top + this.$trigger.outerHeight() + 10
// the final 10 above allows room for the arrow above it
});
// Check and reposition if out of the viewport
var positionXCorrection = this._repositionForViewportSides();
// Set the position of the arrow elements
this._setArrowPosition(positionXCorrection);
// Call the callback
this.options.onShow.call(this.$trigger, this.$popover);
}
GPopover.prototype.hide = function() {
// Hide the popover
this.$popover.fadeOut(this.options.fadeOutDuration);
// Call the callback
this.options.onHide.call(this.$trigger, this.$popover);
}
GPopover.prototype._addArrowElements = function() {
this.$arrow = $('<div class="gpopover-arrow"></div>');
this.$arrowShadow = $('<div class="gpopover-arrow-shadow"></div>');
this.$popover.append(this.$arrow);
this.$popover.append(this.$arrowShadow);
}
GPopover.prototype._preventHideClickPropagation = function() {
/* Prevent clicks within the popover from being propagated
to the document (and thus stop the popover from being
hidden) */
this.$popover.click(function(e) { e.stopPropagation(); });
}
GPopover.prototype._repositionForViewportSides = function() {
var popoverOffsetLeft = this.$popover.offset().left,
positionXCorrection = 0,
$window = $(window);
// Right edge
if (popoverOffsetLeft + this.$popover.outerWidth() + this.options.viewportSideMargin > $window.width()) {
var rightEdgeCorrection = -((popoverOffsetLeft + this.$popover.outerWidth() + this.options.viewportSideMargin) - $window.width());
popoverOffsetLeft = popoverOffsetLeft + rightEdgeCorrection
positionXCorrection = rightEdgeCorrection;
}
// Left edge
if (popoverOffsetLeft < this.options.viewportSideMargin) {
var leftEdgeCorrection = this.options.viewportSideMargin - popoverOffsetLeft;
popoverOffsetLeft = popoverOffsetLeft + leftEdgeCorrection
positionXCorrection += leftEdgeCorrection;
}
// Reposition the popover element if necessary
if (positionXCorrection !== 0) {
this.$popover.offset({ left: popoverOffsetLeft });
}
return positionXCorrection;
}
GPopover.prototype._setArrowPosition = function(positionXCorrection) {
var leftPosition = (this.$popover.outerWidth() / 2) - (this.$arrow.outerWidth() / 2) - positionXCorrection;
this.$arrow.css({ top: -7, left: leftPosition });
this.$arrowShadow.css({ top: -8, left: leftPosition });
}
$.fn.gpopover = function(option) {
return this.each(function(){
var $this = $(this),
data = $this.data('gpopover'),
options = (typeof option == 'object' && option);
// Initialise if not already done
if (!data) {
data = new GPopover(this, options);
$this.data('gpopover', data);
}
// If the option parameter was a string, trigger the named function
if (typeof option == 'string') data[option]();
});
};
// Default settings
$.fn.gpopover.defaults = {
width: 250, // Width of the popover
fadeInDuration: 65, // Duration of popover fade-in animation
fadeOutDuration: 65, // Duration of popover fade-out animation
viewportSideMargin: 10, // Space to leave the side if out the viewport
preventHide: false, // Prevent hide when clicking within popover
onShow: function() {}, // Called upon showing the popover
onHide: function() {} // Called upon hiding the popover
};
})(jQuery);