MOBILE-2568 login: Improve legacy error in desktop apps

src/core/login/lang/en.json

@@ -33,6 +33,7 @@
     "invalidvaluemax": "The maximum value is {{$a}}",
     "invalidvaluemin": "The minimum value is {{$a}}",
     "legacymoodleversion": "You are trying to connect to an unsupported Moodle version. Please, download the Moodle Classic app to access this Moodle site.",
+    "legacymoodleversiondesktop": "You are trying to connect to <b>{{$a}}</b>.<br><br>This site is running an outdated unsupported version of Moodle which will not work with this Moodle Desktop App.<br><br>If this is your site please contact your local moodle partner to get assistance to update it.<br><br>See <a href=\"https://moodle.com/contact\">our contact page</a> to submit a request for assistance.",
     "localmobileunexpectedresponse": "Moodle Mobile Additional Features check returned an unexpected response, you will be authenticated using the standard Mobile service.",
     "login": "Log in",
     "loginbutton": "Log in",

src/core/login/providers/helper.ts

@@ -956,7 +956,13 @@ export class CoreLoginHelperProvider {
                 buttons: buttons
             });
 
-        alert.present();
+        alert.present().then(() => {
+            if (!isAndroid && !isIOS) {
+                // Treat all anchors so they don't override the app.
+                const alertMessageEl: HTMLElement = alert.pageRef().nativeElement.querySelector('.alert-message');
+                this.domUtils.treatAnchors(alertMessageEl);
+            }
+        });
     }
 
     /**

src/providers/sites.ts

@@ -494,8 +494,16 @@ export class CoreSitesProvider {
                     return siteId;
                 });
             } else if (result == this.LEGACY_APP_VERSION) {
+                let errorKey = 'core.login.legacymoodleversion',
+                    params;
+
+                if (this.appProvider.isDesktop()) {
+                    errorKey += 'desktop';
+                    params = {$a: siteUrl};
+                }
+
                 return Promise.reject({
-                    error: this.translate.instant('core.login.legacymoodleversion'),
+                    error: this.translate.instant(errorKey, params),
                     errorcode: 'legacymoodleversion'
                 });
             } else {

src/providers/utils/dom.ts

@@ -1205,7 +1205,7 @@ export class CoreDomUtilsProvider {
      *
      * @param {HTMLElement} container The HTMLElement that can contain anchors.
      */
-    protected treatAnchors(container: HTMLElement): void {
+    treatAnchors(container: HTMLElement): void {
         const anchors = Array.from(container.querySelectorAll('a'));
 
         anchors.forEach((anchor) => {