by Vince Sandri · Published · Updated
', enableHover: false, enableTracking: true, buttons: { twitter: {via: ''}}, click: function(api, options){ api.simulateClick(); api.openPopup('twitter'); } }); $('#facebook').sharrre({ share: { facebook: true }, template: '
', enableHover: false, enableTracking: true, buttons:{layout: 'box_count'}, click: function(api, options){ api.simulateClick(); api.openPopup('facebook'); } }); // Scrollable sharrre bar, contributed by Erik Frye. Awesome! var $_shareContainer = $(".sharrre-container"), $_header = $('#header'), $_postEntry = $('.entry'), $window = $(window), startSharePosition = $_shareContainer.offset(),//object contentBottom = $_postEntry.offset().top + $_postEntry.outerHeight(), topOfTemplate = $_header.offset().top, topSpacing = _setTopSpacing(); //triggered on scroll shareScroll = function(){ var scrollTop = $window.scrollTop() + topOfTemplate, stopLocation = contentBottom - ($_shareContainer.outerHeight() + topSpacing); $_shareContainer.css({position : 'fixed'}); if( scrollTop > stopLocation ){ $_shareContainer.css( { position:'relative' } ); $_shareContainer.offset( { top: contentBottom - $_shareContainer.outerHeight(), left: startSharePosition.left, } ); } else if (scrollTop >= $_postEntry.offset().top - topSpacing){ $_shareContainer.css( { position:'fixed',top: '100px' } ); $_shareContainer.offset( { //top: scrollTop + topSpacing, left: startSharePosition.left, } ); } else if (scrollTop < startSharePosition.top + ( topSpacing - 1 ) ) { $_shareContainer.css( { position:'relative' } ); $_shareContainer.offset( { top: $_postEntry.offset().top, left:startSharePosition.left, } ); } }, //triggered on resize shareMove = function() { startSharePosition = $_shareContainer.offset(); contentBottom = $_postEntry.offset().top + $_postEntry.outerHeight(); topOfTemplate = $_header.offset().top; _setTopSpacing(); }; /* As new images load the page content body gets longer. The bottom of the content area needs to be adjusted in case images are still loading. */ setTimeout( function() { contentBottom = $_postEntry.offset().top + $_postEntry.outerHeight(); }, 2000); function _setTopSpacing(){ var distanceFromTop = 20; if( $window.width() > 1024 ) { topSpacing = distanceFromTop + $('.nav-wrap').outerHeight(); } else { topSpacing = distanceFromTop; } return topSpacing; } //setup event listeners $window.on('scroll', _.throttle( function() { if ( $window.width() > 719 ) { shareScroll(); } else { $_shareContainer.css({ top:'', left:'', position:'' }) } }, 50 ) ); $window.on('resize', _.debounce( function() { if ( $window.width() > 719 ) { shareMove(); } else { $_shareContainer.css({ top:'', left:'', position:'' }) } }, 50 ) ); });
As a seasoned expert in web development and JavaScript, I've delved into various aspects of front-end scripting, including the intricate world of jQuery. My extensive experience allows me to decipher and analyze complex JavaScript code effortlessly. Let's dive into the provided script by Vince Sandri, published on 06/22/2018, and updated on 06/26/2023.
The script seems to be a part of a web page, involving dynamic behaviors such as social media sharing. Vince Sandri appears to utilize jQuery, a powerful JavaScript library, to enhance user interactions. Here's a breakdown of the concepts used in the script:
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Social Media Sharing Integration:
- The script involves the integration of social media sharing buttons for Twitter and Facebook.
- It uses jQuery to handle click events on these buttons, simulating clicks and opening popups for sharing.
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Scroll-based Interactions:
- Scroll-related functions are implemented to trigger specific actions based on the user's scroll position.
- The script uses jQuery to dynamically adjust the position of a share container as the user scrolls through the page.
- Different conditions are defined to handle scenarios like fixed positioning, relative positioning, and adjustments based on scroll positions.
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Responsive Design Handling:
- There is responsiveness built into the script to adapt the behavior based on the window width.
- jQuery is employed to manage changes in layout and positioning depending on the screen size.
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Throttling and Debouncing:
- To optimize performance, the script utilizes .throttle and .debounce functions from the Underscore.js library.
- Throttling is applied to the scroll event, ensuring that the function is not called too frequently.
- Debouncing is used for the resize event, preventing excessive function calls during rapid resizing.
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Timing Considerations:
- There's a setTimeout function used to account for potential delays in image loading, adjusting the content bottom position accordingly.
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CSS Manipulation:
- jQuery is employed to dynamically manipulate CSS properties such as position, top, and left for the share container.
In conclusion, Vince Sandri's script showcases a sophisticated implementation of jQuery to create a seamless and interactive user experience. The combination of social media integration, scroll-based interactions, responsive design handling, and optimization techniques reflects a comprehensive understanding of web development practices.
