When deleting account, replace previous system alert pop up with a custom confirmation dialog that includes (if the account was a linphone account) a link to susbscribe.linphone.org for permanent deletion

Classes/LinphoneUI/Base.lproj/UIConfirmationDialog.xib

@@ -18,6 +18,7 @@
                 <outlet property="forwardImage" destination="1Wh-Yi-cUe" id="YQq-bt-pk1"/>
                 <outlet property="groupCallImage" destination="SVn-4k-9yc" id="sAP-8V-ttn"/>
                 <outlet property="securityImage" destination="bbo-g3-bGy" id="qZa-li-yrl"/>
+                <outlet property="subscribeLabel" destination="Xbl-Qs-GaE" id="Qnf-pA-nL0"/>
                 <outlet property="titleLabel" destination="jLz-g1-cTe" id="qaj-OB-2r1"/>
                 <outlet property="view" destination="2Vb-Xy-rci" id="nNw-EJ-AY3"/>
             </connections>
@@ -105,12 +106,27 @@
                             <rect key="frame" x="100" y="50" width="136" height="54"/>
                             <autoresizingMask key="autoresizingMask" flexibleMinX="YES" flexibleMaxX="YES" flexibleMaxY="YES"/>
                         </imageView>
+                        <label hidden="YES" opaque="NO" tag="13" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="https://subscribe.linphone.org" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Xbl-Qs-GaE" userLabel="subscribeLabel">
+                            <rect key="frame" x="-42" y="291" width="414" height="29"/>
+                            <autoresizingMask key="autoresizingMask" widthSizable="YES" flexibleMinY="YES" flexibleMaxY="YES"/>
+                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                            <color key="textColor" red="0.98766469960000003" green="0.27512490750000002" blue="0.029739789660000002" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                            <nil key="highlightedColor"/>
+                            <connections>
+                                <outletCollection property="gestureRecognizers" destination="tfG-O1-yfD" appends="YES" id="Jcg-KH-U5B"/>
+                            </connections>
+                        </label>
                     </subviews>
                 </view>
             </subviews>
             <nil key="simulatedStatusBarMetrics"/>
-            <point key="canvasLocation" x="871.20000000000005" y="261.31934032983509"/>
+            <point key="canvasLocation" x="548" y="34"/>
         </view>
+        <tapGestureRecognizer id="tfG-O1-yfD" userLabel="onSubscribeTap">
+            <connections>
+                <action selector="onSubscribeTap:" destination="-1" id="Zq2-mP-ccM"/>
+            </connections>
+        </tapGestureRecognizer>
     </objects>
     <resources>
         <image name="checkbox_checked.png" width="27.200000762939453" height="27.200000762939453"/>

Classes/LinphoneUI/UIConfirmationDialog.h

@@ -56,11 +56,14 @@ typedef void (^UIConfirmationBlock)(void);
 @property(weak, nonatomic) IBOutlet UILabel *titleLabel;
 @property(weak, nonatomic) IBOutlet UIView *firstView;
 @property (weak, nonatomic) IBOutlet UIButton *authButton;
+@property(weak, nonatomic) IBOutlet UILabel *subscribeLabel;
+
 
 - (void)setSpecialColor;
 -(void) setWhiteCancel;
 - (IBAction)onCancelClick:(id)sender;
 - (IBAction)onConfirmationClick:(id)sender;
 - (IBAction)onAuthClick:(id)sender;
+- (IBAction)onSubscribeTap:(id)sender;
 - (void)dismiss;
 @end

Classes/LinphoneUI/UIConfirmationDialog.m

@@ -145,4 +145,12 @@
 - (void)dismiss {
 	[self onCancelClick:nil];
 }
+
+- (IBAction)onSubscribeTap:(id)sender {
+	UIGestureRecognizer *gest = sender;
+	NSString *url = ((UILabel *)gest.view).text;
+	if (![UIApplication.sharedApplication openURL:[NSURL URLWithString:url]]) {
+		LOGE(@"Failed to open %@, invalid URL", url);
+	}
+}
 @end

Classes/SettingsView.m

@@ -885,25 +885,34 @@ void update_hash_cbs(LinphoneAccountCreator *creator, LinphoneAccountCreatorStat
 		[PhoneMainView.instance changeCurrentView:AssistantView.compositeViewDescription];
 		return;
 	} else if ([key isEqual:@"account_mandatory_remove_button"]) {
-		UIAlertController *errView = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Warning", nil)
-																		 message:NSLocalizedString(@"Are you sure to want to remove your proxy setup?", nil)
-																  preferredStyle:UIAlertControllerStyleAlert];
+		NSString *popUpText;
+		NSString *appDomain  = [LinphoneManager.instance lpConfigStringForKey:@"domain_name"
+					inSection:@"app"
+					withDefault:@"sip.linphone.org"];
 		
-		UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Cancel", nil)
-																style:UIAlertActionStyleDefault
-															  handler:^(UIAlertAction * action) {}];
+		MSList *accountList = [LinphoneManager.instance createAccountsNotHiddenList];
+		LinphoneAccount *account = bctbx_list_nth_data(accountList,
+														  [settingsStore integerForKey:@"current_proxy_config_preference"]);
 		
-		UIAlertAction* continueAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"Yes", nil)
-																 style:UIAlertActionStyleDefault
-															   handler:^(UIAlertAction * action) {
-																   [settingsStore removeAccount];
-																   [self recomputeAccountLabelsAndSync];
-																   [_settingsController.navigationController popViewControllerAnimated:NO];
-															   }];
+		bool isLinphoneAccount = strcmp(appDomain.UTF8String, linphone_account_params_get_domain(linphone_account_get_params(account))) == 0;
+		if (isLinphoneAccount) {
+			popUpText = NSLocalizedString(@"Your account will only be deleted locally.\nTo delete it permanently, go to our account management platform:", nil);
+		} else {
+			popUpText = NSLocalizedString(@"Your account will only be deleted locally.\nTo delete it permanently, go on your SIP provider website.", nil);
+		}
+		bctbx_free(accountList);
 		
-		[errView addAction:defaultAction];
-		[errView addAction:continueAction];
-		[self presentViewController:errView animated:YES completion:nil];
+		UIConfirmationDialog *dialog = [UIConfirmationDialog ShowWithMessage:popUpText
+								cancelMessage:nil
+							   confirmMessage:nil
+								onCancelClick:nil
+						  onConfirmationClick:^() {
+			[settingsStore removeAccount];
+			[self recomputeAccountLabelsAndSync];
+			[_settingsController.navigationController popViewControllerAnimated:NO];
+		}];
+		dialog.subscribeLabel.hidden = !isLinphoneAccount; // Only display link to https://subscribe.linphone.org for linphone accounts
+
 	} else if ([key isEqual:@"account_mandatory_change_password"]) {
 		UIAlertController *alertView = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Change your password", nil)
 																		 message:NSLocalizedString(@"Please enter and confirm your new password", nil)