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Code Issues Packages Projects Releases Wiki Activity

Invert webview colors when using dark/black theme

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This commit is contained in:
M66B
2019-04-19 09:02:18 +02:00
parent edcda6a5ae
commit 3dad939bcb
2 changed files with 25 additions and 4 deletions
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19
app/src/main/java/eu/faircode/email/AdapterMessage.java
View File

@@ -36,6 +36,8 @@ import android.content.pm.PackageManager;
import android.content.res.ColorStateList;
import android.database.Cursor;
import android.graphics.Color;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
@@ -139,6 +141,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
private boolean suitable;
private IProperties properties;
private boolean dark;
private boolean date;
private boolean threading;
private boolean contacts;
@@ -1398,6 +1401,19 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
}
};
if (dark) {
float[] NEGATIVE = new float[]{
-1, 0, 0, 0, 255, // red
0, -1, 0, 0, 255, // green
0, 0, -1, 0, 255, // blue
0, 0, 0, 1, 0 // alpha
};
Paint paint = new Paint();
paint.setColorFilter(new ColorMatrixColorFilter(NEGATIVE));
webView.setLayerType(View.LAYER_TYPE_HARDWARE, paint);
}
webView.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.i("Open url=" + url);
@@ -3033,6 +3049,9 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
this.suitable = Helper.getNetworkState(context).isSuitable();
this.properties = properties;
TypedValue tv = new TypedValue();
context.getTheme().resolveAttribute(R.attr.themeName, tv, true);
this.dark = !"light".equals(tv.string);
this.date = prefs.getBoolean("date", true);
this.threading = prefs.getBoolean("threading", true);