[Swingme-svn] SF.net SVN: swingme:[2682] iOSME/src/net/yura/ios/WebViewController.java

[<yu...@us...>]

Revision: 2682
          http://sourceforge.net/p/swingme/code/2682
Author:   yuranet
Date:     2023-01-24 15:50:05 +0000 (Tue, 24 Jan 2023)
Log Message:
-----------
fix title color when white page is opened in dark theme

Modified Paths:
--------------
    iOSME/src/net/yura/ios/WebViewController.java

Modified: iOSME/src/net/yura/ios/WebViewController.java
===================================================================
--- iOSME/src/net/yura/ios/WebViewController.java	2023-01-24 14:56:43 UTC (rev 2681)
+++ iOSME/src/net/yura/ios/WebViewController.java	2023-01-24 15:50:05 UTC (rev 2682)
@@ -5,8 +5,10 @@
 import apple.foundation.NSData;
 import apple.foundation.NSError;
 import apple.foundation.NSURL;
+import apple.uikit.UINavigationBarAppearance;
 import apple.uikit.UIScreen;
 import apple.uikit.UIViewController;
+import apple.uikit.enums.UIUserInterfaceStyle;
 import apple.uikit.enums.UIViewAutoresizing;
 import apple.webkit.WKNavigation;
 import apple.webkit.WKUserContentController;
@@ -104,6 +106,7 @@
                 // we want to load text as UTF-8, as by default iOS seems to use some other encoding
                 NSData data = NSData.dataWithContentsOfURL(htmlFileUrl);
                 myWebView.loadDataMIMETypeCharacterEncodingNameBaseURL(data, "text/plain", "UTF-8", mainBundle.resourceURL());
+                setTitle(name);
             }
             else {
                 myWebView.loadFileURLAllowingReadAccessToURL(htmlFileUrl, mainBundle.resourceURL());
@@ -129,7 +132,10 @@
                 @Override
                 public void call_evaluateJavaScriptCompletionHandler(Object title, NSError error) {
                     if (error == null) {
-                        setTitle(String.valueOf(title));
+                        String titleString = String.valueOf(title);
+                        if (!"".equals(titleString)) {
+                            setTitle(titleString);
+                        }
                     }
                     else {
                         System.err.println("Error getting title: " + error);
@@ -137,5 +143,22 @@
                 }
             });
         }
+
+        // if we are in dark mode, check if page is white, as we may get white title on white background
+        if (traitCollection().userInterfaceStyle() == UIUserInterfaceStyle.Dark) {
+            myWebView.evaluateJavaScriptCompletionHandler("window.getComputedStyle(document.body, null).getPropertyValue('background-color')", new WKWebView.Block_evaluateJavaScriptCompletionHandler() {
+                @Override
+                public void call_evaluateJavaScriptCompletionHandler(Object color, NSError error) {
+                    // if the background is hard coded to white
+                    if ("rgb(255, 255, 255)".equals(color)) {
+                        // we do NOT want the 'TransparentBackground' as then we will get white title on white background
+                        UINavigationBarAppearance appearance = UINavigationBarAppearance.alloc().init();
+                        appearance.configureWithOpaqueBackground();
+                        //appearance.setTitleTextAttributes((NSDictionary<String, ?>) NSDictionary.dictionaryWithObjectForKey(UIColor.blackColor(), UIKit.NSForegroundColorAttributeName()));
+                        navigationItem().setScrollEdgeAppearance(appearance);
+                    }
+                }
+            });
+        }
     }
 }

This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.