# image-source-control-isc/3.11.0/admin/assets/js/settings.js

Image Source Control Lite – Show Image Credits and Captions, version 3.11.0. 318 lines.

- Page: https://pluginprobe.com/plugins/image-source-control-isc/3.11.0/code/admin/assets/js/settings.js
- Raw: https://pluginprobe.com/plugins/image-source-control-isc/3.11.0/raw/admin/assets/js/settings.js
- Modified: 2026-06-23T08:31:44+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/image-source-control-isc/3.11.0/code/admin/assets/js/settings.js#L10-L20`.

```javascript
/**
 * Scripts for Settings > Image Sources
 */
jQuery( document ).ready(
	function($) {
		// Initial setup
		isc_thumbnail_input_checkstate();
		isc_caption_checkstate();
		isc_licenses_checkstate();
		isc_toggle_caption_position();
		isc_toggle_module_sections();

		// Event handlers
		$( '#isc-settings-overlay-enable' ).on( 'click', function(){ isc_caption_checkstate() } );
		$( '#isc-settings-licenses-enable' ).on( 'click', function(){ isc_licenses_checkstate() } );
		$( '.isc-settings-standard-source input' ).on( 'change', isc_toggle_standard_source_text );
		$( '#thumbnail-size-select, #use-thumbnail' ).on( 'change', function(){ isc_thumbnail_input_checkstate(); } );
		$( '#isc-settings-caption-style input' ).on( 'change', function(){ isc_toggle_caption_position(); } );
		$( '#isc-settings-global-list-indexed-images' ).on( 'change', function(){ isc_show_reindex_warning(); } );
		$( '#isc-settings-plugin-modules input[type="checkbox"]').on('change', function() { isc_toggle_module_sections(); });
		$( '#isc-settings-plugin-images-only' ).on( 'change', function() {
			const enabled = this.checked;
			$( '#isc-settings-plugin-images-only-indexer' ).toggleClass( 'hidden' );
			$( '#isc-settings-plugin-images-only-cleanup-wrapper' ).toggleClass( 'hidden', !enabled );
		});

		// Copy log URL to clipboard
		$( '#isc-copy-log-url-btn' ).on( 'click', function() {
			const urlField = document.getElementById( 'isc-log-url-field' );
			if ( ! urlField ) {
				return;
			}

			const showSuccess = function() {
				$( '#isc-copy-log-url-success' ).stop( true, true ).fadeIn().delay( 2000 ).fadeOut();
			};

			const fallbackCopy = function() {
				urlField.focus();
				urlField.select();
				urlField.setSelectionRange( 0, urlField.value.length );
				if ( document.execCommand( 'copy' ) ) {
					showSuccess();
				}
			};

			if ( navigator.clipboard?.writeText ) {
				navigator.clipboard.writeText( urlField.value ).then( showSuccess ).catch( fallbackCopy );
			} else {
				fallbackCopy();
			}
		} );

		// Download log file
		$( '#isc-download-log-btn' ).on( 'click', function() {
			// Use AJAX to download the file via WordPress backend
			$.ajax({
				type: 'POST',
				url: ajaxurl,
				data: {
					action: 'isc_download_log',
					nonce: isc.ajaxNonce,
				},
				xhrFields: {
					responseType: 'blob'
				},
				success: function( response, status, xhr ) {
					// Get filename from Content-Disposition header or use default
					const disposition = xhr.getResponseHeader( 'Content-Disposition' );
					let filename = 'image-source-control.log';
					if ( disposition && disposition.indexOf( 'filename=' ) !== -1 ) {
						const filenameMatch = disposition.match( /filename="?([^"]+)"?/ );
						if ( filenameMatch && filenameMatch[1] ) {
							filename = filenameMatch[1];
						}
					}

					// Create a blob URL and trigger download
					const blob = new Blob( [response], { type: 'text/plain' } );
					const url = window.URL.createObjectURL( blob );
					const link = document.createElement( 'a' );
					link.href = url;
					link.download = filename;
					document.body.appendChild( link );
					link.click();
					document.body.removeChild( link );
					window.URL.revokeObjectURL( url );
				},
				error: function( xhr ) {
					// Show error message
					console.error( 'Error downloading log file:', xhr.statusText );
					let errorMsg = 'Error downloading log file.';
					if (xhr.status) {
						errorMsg += ' HTTP status: ' + xhr.status + ' (' + xhr.statusText + ').';
					}
					// Try to extract a more specific error message from the response, if available
					if (xhr.responseText) {
						errorMsg += '\nDetails: ' + xhr.responseText;
					}
					alert(errorMsg);
				}
			});
		} );

		// Toggle log URL field visibility when checkbox is changed
		$( '#isc-enable-log-checkbox' ).on( 'change', function() {
			$( '#isc-log-url-wrapper' ).toggle( this.checked );
		});

		// Show and update preview when a position option is clicked
		$('#isc-settings-caption-pos-options button').on( 'click', function (event) {
			// Stop propagation to prevent document click event from hiding the preview immediately
			event.stopPropagation();

			$('#isc-settings-caption-pos-options button.selected').removeClass('selected');
			$(this).addClass('selected');
			$('#isc-settings-caption-position').val($(this).data('position'));

			var iframe = document.createElement('iframe');
			iframe.src = isc_settings.baseurl + 'admin/templates/settings/preview/caption-preview.html' + "?position=" + $(this).data('position') + "&pretext=" + encodeURIComponent($('#source-pretext').val());
			iframe.width = "250";
			iframe.height = "181";

			var preview_container = $('#isc-settings-caption-preview');
			preview_container.find('iframe').remove();
			preview_container.append(iframe);
			preview_container.removeClass('hidden');
		});

		// Hide the preview when the mouse leaves the option area or a click occurs outside the option area
		$(document).on('click mouseout', function (event) {
			if (!$(event.target).closest('#isc-settings-caption-pos-options').length) {
				$('#isc-settings-caption-preview').addClass('hidden');
			}
		});

		$('#isc-signup-nl').prop( 'disabled', false );
		$('#isc-signup-nl').on( 'click', function() {
			$('#isc-signup-nl').prop( 'disabled', true );
			$('#isc-signup-loader').removeClass('hidden');
			$.ajax({
				type: 'POST',
				url: ajaxurl,
				data: {
					action: 'newsletter_signup',
					nonce: isc.ajaxNonce,
				},
				dataType: 'json',
				success: function( response ) {
					if ( ! response.success ) {
						$('#isc-signup-nl-error').removeClass('hidden').html(response.message);
					} else {
						$('#isc-signup-nl-success').removeClass('hidden').html(response.message);
					}
					$('#isc-signup-loader').addClass('hidden');
				}
			});
		});
		// close the newsletter signup box without signing up
		$('#isc_settings_section_signup .postbox-header .dashicons-no-alt').on( 'click', function() {
			$('#isc-signup-nl').prop( 'disabled', true );
			$('#isc-signup-loader').removeClass('hidden');
			$.ajax({
				type: 'POST',
				url: ajaxurl,
				data: {
					action: 'newsletter_close',
					nonce: isc.ajaxNonce,
				},
				dataType: 'json',
				success: function( response ) {
					$('#isc_settings_section_signup').remove();
				}
			});
		});

		// Add special characters to the source-pretext field by clicking on a button
		document.querySelectorAll('#source-pretext-buttons button').forEach( function( button ) {
			button.addEventListener('click', function() {
				var inputField = document.getElementById('source-pretext');
				inputField.value += this.textContent; // Use the button's content
				inputField.focus(); // Optionally, refocus on the input field
			});
		});
		// Show the buttons when the input is focused
		document.getElementById('source-pretext').addEventListener('focus', function() {
			document.getElementById('source-pretext-buttons').classList.remove('hidden');
		});
	}
);

/**
 * Toggle visibility of module-related sections based on checkbox states
 */
function isc_toggle_module_sections() {
	Object.entries( isc.moduleSections ).forEach(([module, sections]) => {
		const checkbox = document.querySelector(`#isc-settings-plugin-modules input[value="${module}"]`);
		if (checkbox) {
			sections.forEach(sectionId => {
				const sectionElement = document.getElementById(sectionId);
				const section = sectionElement ? sectionElement.querySelector('.inside') : null;
				if (section) {
					if (checkbox.checked) {
						section.classList.remove('hidden');
					} else {
						section.classList.add('hidden');
					}
				}
			});
		}
	});
}

/**
 * Toggle the state of the thumbnail size options
 */
function isc_thumbnail_input_checkstate(){
	// enable the thumbnail size select field when thumbnails are enabled in general
	if ( document.getElementById( 'use-thumbnail' ).checked ) {
		document.getElementById( 'thumbnail-size-select' ).classList.remove( 'hidden' );
	} else {
		document.getElementById( 'thumbnail-size-select' ).classList.add( 'hidden' )
	}

	// toggle the state of the thumbnail custom size options in the plugin settings to only enable them if the "custom" thumbnails size is used
	if ( 'custom' === document.getElementById( 'thumbnail-size-select' ).value && document.getElementById( 'use-thumbnail' ).checked ) {
		document.getElementById( 'isc-settings-custom-size' ).classList.remove( 'hidden' );
	} else {
		document.getElementById( 'isc-settings-custom-size' ).classList.add( 'hidden' );
	}
}

/**
 * Toggle the state of the options in the Overlay settings
 */
function isc_caption_checkstate() {
	var overlay_enabled = document.getElementById( 'isc-settings-overlay-enable' );

	if ( ! overlay_enabled ) {
		return;
	}
	var elements = document.querySelectorAll( '.isc_settings_section_overlay .form-table tr:not(:first-of-type)' );
	if ( overlay_enabled.checked ) {
		Array.prototype.forEach.call( elements, function(el, i) {
			el.style.display = 'table-row';
		} );
	} else {
		Array.prototype.forEach.call( elements, function(el, i) {
			el.style.display = 'none';
		} );
	}
}

/**
 * Toggle the state of the options in the Licenses settings
 */
function isc_licenses_checkstate() {
	var licenses_enabled = document.getElementById( 'isc-settings-licenses-enable' );

	if ( ! licenses_enabled ) {
		return;
	}
	var elements = document.querySelectorAll( '.isc_settings_section_licenses .form-table tr:not(:first-of-type)' );
	if ( licenses_enabled.checked ) {
		Array.prototype.forEach.call( elements, function(el, i) {
			el.style.display = 'table-row';
		} );
	} else {
		Array.prototype.forEach.call( elements, function(el, i) {
			el.style.display = 'none';
		} );
	}
}

/**
 * Toggle the state of the Custom Text option in the Standard Sources settings
 */
function isc_toggle_standard_source_text() {
	var standard_source_custom = document.getElementById( 'isc-custom-text-select' );

	if ( ! standard_source_custom ) {
		return;
	}

	if ( standard_source_custom.checked ) {
		document.getElementById( 'isc-custom-text' ).removeAttribute( 'disabled' );
	} else {
		document.getElementById( 'isc-custom-text' ).setAttribute( 'disabled', 'disabled' );
	}
}

/**
 * Toggle the visibility of the position option when the caption style is changed
 */
function isc_toggle_caption_position() {
	var caption_style = document.querySelector( '#isc-settings-caption-style input:checked' );

	if ( ! caption_style ) {
		return;
	}

	if ( caption_style.value === 'none' ) {
		document.getElementById( 'isc-settings-caption-position-options-wrapper' ).classList.add( 'hidden' );
		// add class also to the sibling H4 element
		document.getElementById( 'isc-settings-caption-position-options-wrapper' ).previousElementSibling.classList.add( 'hidden' );
	} else {
		document.getElementById( 'isc-settings-caption-position-options-wrapper' ).classList.remove( 'hidden' );
		// remove class also from the sibling H4 element
		document.getElementById( 'isc-settings-caption-position-options-wrapper' ).previousElementSibling.classList.remove( 'hidden' );
	}
}

/**
 * Toggle the visibility of the warning about a reindex when changing the Index-Images option for Global Lists
 */
function isc_show_reindex_warning() {
	document.getElementById( 'isc-settings-global-list-indexed-images-warning' ).classList.remove( 'hidden' );
}
```