Photo Gallery - Biscayne National Park (U.S. National Park Service) (2024)

Photo Gallery

');if (end > results_length) {end = results_length;}for (var i = start; i < end; i++) {var asset = data[i];var $tile = $result_template.clone(false);var assetID = asset.AssetID;var asset_count = asset.AssetCount;var park_name = asset.NPSUnits[0].Name;var park_code = asset.NPSUnits[0].Code.toLowerCase();var asset_title = asset.Title;var asset_description = asset.Description;assetID = assetID.toUpperCase();$tile.find('a.PhotoGallery__CoverLink').attr({ href: galleryPageURL + assetID });$tile.find('a.PhotoGallery__TitleLink').attr({ href: galleryPageURL + assetID });$tile.find('img').attr({ src: npGalleryURL + '/GetAsset/' + assetID + '/proxy/hires', alt: asset_title, title: asset_title });if (asset_title.length > 30) {asset_title = asset_title.substring(0, 30) + "...";}$tile.find('a.PhotoGallery__TitleLink').text(asset_title);if (asset.Description.length > 2) {$tile.find('p.PhotoGallery__Description').html(asset_description);}$target.append($tile);$tile.find('div.PhotoGallery__Count').html('' + asset_count + ' Images');delete asset;}}} else {$('#PhotoGallery-Container' + controlID).html( 'The photo gallery you have chosen does not exist.');}function draw_paging(current_page) {var pages = Math.ceil(results_length / max_display);var current = parseInt(current_page);paging_target = $('#paginationWrapper' + controlID + ' .pagination-old');paging_html = '';paging_target.empty();if (pages > 1) {if (current == 1) {paging_html += 'Prev';} else {paging_html += '' + (current - 1) + '';}paging_html += '

' + i + '
' + i + '

';if (current == pages) {paging_html += 'Next';} else {paging_html += '' + (current + 1) + '';}paging_target.append(paging_html);}$('a.paging, a.prev, a.next').on('click', function (event) {event.preventDefault();var page_num = $(this).text();draw_paging(page_num);display_galleries(page_num);$('body').scrollTop(0);});}}).error(function (jqXHR, exception) {var msg = '';if (jqXHR.status === 0) {msg = 'Not connect.\n Verify Network.';} else if (jqXHR.status == 404) {msg = 'Requested page not found. [404]';} else if (jqXHR.status == 500) {msg = 'Internal Server Error [500].';} else if (exception === 'parsererror') {msg = 'Requested JSON parse failed.';} else if (exception === 'timeout') {msg = 'Time out error.';} else if (exception === 'abort') {msg = 'Ajax request aborted.';} else {msg = 'Uncaught Error.\n' + jqXHR.responseText;}});});})(jQuery);

As someone deeply entrenched in the realm of web development and JavaScript, it's apparent that the code snippet you've provided is part of a script designed for a photo gallery on a website. This script seems to utilize jQuery, a fast and feature-rich JavaScript library, to dynamically generate and display a photo gallery.

Let me delve into the details:

Initialization and Setup:
- The script starts by defining a function, possibly part of a broader application or webpage.
- It appears to interact with a photo gallery, creating and populating elements dynamically.
Iterating Through Photo Assets:
See Also
US National Parks by Size
- The code iterates through a set of photo assets, likely retrieved from some data source.
- Key details like assetID, asset_count, park_name, park_code, asset_title, and asset_description are extracted from each asset.
HTML Template Manipulation:
- A template, presumably representing the structure of a gallery item, is cloned for each photo asset.
- Attributes such as href, src, alt, and title are set dynamically based on the asset data.
Conditional Title Truncation:
- If the length of asset_title is more than 30 characters, it is truncated and followed by ellipses.
Conditional Description Display:
- If the length of asset_description is greater than 2, a paragraph element with the class PhotoGallery__Description is populated with the description.
Pagination:
- The script includes a pagination function (draw_paging) to manage the display of multiple pages of photo assets.
- Pagination controls are created based on the total number of assets and the desired number of assets per page (max_display).
Event Handling:
- Event handlers are set up for clicking on pagination links (a.paging, a.prev, a.next).
- Clicking on these links triggers the pagination function (draw_paging) and a function (display_galleries) to update the displayed galleries.
Error Handling:
- There's error handling for AJAX requests, with different messages for various scenarios like network issues, page not found, internal server error, JSON parse failure, timeout, and abort.

In conclusion, this script seems to be a crucial part of a dynamic photo gallery on a website. It not only fetches and displays photo assets but also provides a user-friendly pagination mechanism and robust error handling for a seamless user experience. If you have specific questions or if there's a particular aspect you'd like to explore further, feel free to ask!