From 28801ba95b27875a35d9ce6be0071dab0880bcae Mon Sep 17 00:00:00 2001
From: sspanak <doftor.livain@gmail.com>
Date: Sun, 12 Jan 2025 14:55:02 +0200
Subject: [PATCH] the Help screen is now styled using the app colors

---
 app/help-tools.gradle                         | 13 +++------
 .../sspanak/tt9/preferences/HelpActivity.java | 27 ++++++++++++++++++-
 .../sspanak/tt9/ui/WebViewActivity.java       |  5 ++++
 3 files changed, 35 insertions(+), 10 deletions(-)

diff --git a/app/help-tools.gradle b/app/help-tools.gradle
index 553d864f..d8773231 100644
--- a/app/help-tools.gradle
+++ b/app/help-tools.gradle
@@ -20,19 +20,14 @@ static markdownToHtml(markdownPath, htmlPath) {
 
 
 static getStyles() {
-	return "body {padding: 0 6px; background-color: #f4f4f4; color: #000;}" +
-		"a {color: #225682}" +
-		"a:visited {color: #644280}" +
+	return "body {color: default; padding: 0 6px;}" +
+		"a {color: accent;}" +
+		"a:visited {color: inherit;}" +
 		"li {margin: 4px 0; padding: 1px;}" +
 		"p {text-align: left;}" +
 		"p.wrap{word-wrap: break-word;}" +
 		".toc {border: 1px solid; display: inline-block; padding: 12px 20px 12px 0; margin: 12px 0;}" +
-		".toc > h3 {text-align: center; margin: 0;}" +
-		"@media (prefers-color-scheme: dark) {" +
-			"body { background-color: #333; color: #c8c8c8; }" +
-			"a {color: #a0c1de}" +
-			"a:visited {color: #d9bce1}" +
-		"}"
+		".toc > h3 {text-align: center; margin: 0;}"
 }
 
 
diff --git a/app/src/main/java/io/github/sspanak/tt9/preferences/HelpActivity.java b/app/src/main/java/io/github/sspanak/tt9/preferences/HelpActivity.java
index 0f6a3cea..1c597ada 100644
--- a/app/src/main/java/io/github/sspanak/tt9/preferences/HelpActivity.java
+++ b/app/src/main/java/io/github/sspanak/tt9/preferences/HelpActivity.java
@@ -1,5 +1,8 @@
 package io.github.sspanak.tt9.preferences;
 
+import android.util.TypedValue;
+import android.widget.TextView;
+
 import java.io.BufferedReader;
 import java.io.IOException;
 
@@ -8,6 +11,10 @@ import io.github.sspanak.tt9.util.Logger;
 import io.github.sspanak.tt9.util.SystemSettings;
 
 public class HelpActivity extends WebViewActivity {
+	public HelpActivity() {
+		transparentBackground = true;
+	}
+
 	@Override
 	protected String getMimeType() {
 		return "text/html";
@@ -22,7 +29,9 @@ public class HelpActivity extends WebViewActivity {
 			while ((line = reader.readLine()) != null) {
 				builder.append(line);
 			}
-			return builder.toString();
+			return builder.toString()
+				.replaceFirst("color: default", getTextColor())
+				.replaceFirst("color: accent", getLinkColor());
 		} catch (Exception e) {
 			Logger.e(getClass().getSimpleName(), "Failed opening the help HTML document.");
 			return "";
@@ -35,4 +44,20 @@ public class HelpActivity extends WebViewActivity {
 		file = file.exists() ? file : new HelpFile(this);
 		return file.getReader();
 	}
+
+	private String getTextColor() {
+		return colorToHex(new TextView(this).getTextColors().getDefaultColor());
+	}
+
+	private String getLinkColor() {
+		final TypedValue value = new TypedValue();
+		getTheme().resolveAttribute(android.R.attr.colorAccent, value, true);
+		return colorToHex(value.data);
+	}
+
+	private String colorToHex(int color) {
+		String textColor = String.format("%06x", color);
+		textColor = textColor.length() == 8 ? textColor.substring(2) : textColor;
+		return "color: #" + textColor;
+	}
 }
diff --git a/app/src/main/java/io/github/sspanak/tt9/ui/WebViewActivity.java b/app/src/main/java/io/github/sspanak/tt9/ui/WebViewActivity.java
index af90034b..d17604cc 100644
--- a/app/src/main/java/io/github/sspanak/tt9/ui/WebViewActivity.java
+++ b/app/src/main/java/io/github/sspanak/tt9/ui/WebViewActivity.java
@@ -1,5 +1,6 @@
 package io.github.sspanak.tt9.ui;
 
+import android.graphics.Color;
 import android.os.Bundle;
 import android.util.Base64;
 import android.view.View;
@@ -11,6 +12,7 @@ import androidx.appcompat.app.ActionBar;
 
 abstract public class WebViewActivity extends EdgeToEdgeActivity implements View.OnAttachStateChangeListener {
 	private WebView webView;
+	protected boolean transparentBackground = false;
 
 	@Override
 	protected void onCreate(@Nullable Bundle savedInstanceState) {
@@ -55,6 +57,9 @@ abstract public class WebViewActivity extends EdgeToEdgeActivity implements View
 		webView = new WebView(this);
 		webView.addOnAttachStateChangeListener(this);
 		webView.setWebViewClient(new WebViewSafeClient(this));
+		if (transparentBackground) {
+			webView.setBackgroundColor(Color.TRANSPARENT);
+		}
 
 		// On API > 30 the WebView does not load the entire String with .loadData(),
 		// so we need to do this weird shit.