- private void highlightUrlText() {
- // Only highlight the URL text if the box is not currently selected.
- if (!urlEditText.hasFocus()) {
- // Get the URL string.
- String urlString = urlEditText.getText().toString();
-
- // Highlight the URL according to the protocol.
- if (urlString.startsWith("file://") || urlString.startsWith("content://")) { // This is a file or content URL.
- // De-emphasize everything before the file name.
- urlEditText.getText().setSpan(initialGrayColorSpan, 0, urlString.lastIndexOf("/") + 1,Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- } else { // This is a web URL.
- // Get the index of the `/` immediately after the domain name.
- int endOfDomainName = urlString.indexOf("/", (urlString.indexOf("//") + 2));
-
- // Create a base URL string.
- String baseUrl;
-
- // Get the base URL.
- if (endOfDomainName > 0) { // There is at least one character after the base URL.
- // Get the base URL.
- baseUrl = urlString.substring(0, endOfDomainName);
- } else { // There are no characters after the base URL.
- // Set the base URL to be the entire URL string.
- baseUrl = urlString;
- }
-
- // Get the index of the last `.` in the domain.
- int lastDotIndex = baseUrl.lastIndexOf(".");
-
- // Get the index of the penultimate `.` in the domain.
- int penultimateDotIndex = baseUrl.lastIndexOf(".", lastDotIndex - 1);
-
- // Markup the beginning of the URL.
- if (urlString.startsWith("http://")) { // Highlight the protocol of connections that are not encrypted.
- urlEditText.getText().setSpan(redColorSpan, 0, 7, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
-
- // De-emphasize subdomains.
- if (penultimateDotIndex > 0) { // There is more than one subdomain in the domain name.
- urlEditText.getText().setSpan(initialGrayColorSpan, 7, penultimateDotIndex + 1, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
- } else if (urlString.startsWith("https://")) { // De-emphasize the protocol of connections that are encrypted.
- if (penultimateDotIndex > 0) { // There is more than one subdomain in the domain name.
- // De-emphasize the protocol and the additional subdomains.
- urlEditText.getText().setSpan(initialGrayColorSpan, 0, penultimateDotIndex + 1, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- } else { // There is only one subdomain in the domain name.
- // De-emphasize only the protocol.
- urlEditText.getText().setSpan(initialGrayColorSpan, 0, 8, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
- }
-
- // De-emphasize the text after the domain name.
- if (endOfDomainName > 0) {
- urlEditText.getText().setSpan(finalGrayColorSpan, endOfDomainName, urlString.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
- }
- }
- }
-