1 files changed, 155 insertions, 0 deletions
diff --git a/app/src/main/java/mygram/droid/Ui.java b/app/src/main/java/mygram/droid/Ui.java
new file mode 100644
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+++ b/app/src/main/java/mygram/droid/Ui.java
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+/*
+ * mygram-droid: Android TV client for Foldergram.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+package mygram.droid;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.graphics.RenderEffect;
+import android.graphics.Shader;
+import android.text.InputType;
+import android.view.Gravity;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import androidx.recyclerview.widget.GridLayoutManager;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/** View helpers. The UI is built in code, there are no layout files. */
+final class Ui {
+	static final int RED = 0xFFFF3B5C;
+	/** Post tiles: portrait, most media is 9:16. */
+	static final int POST_W = 128, POST_H = 228;
+
+	private Ui() {
+	}
+
+	static int dp(Context c, float v) {
+		return Math.round(v * c.getResources().getDisplayMetrics().density);
+	}
+
+	static TextView text(Context c, String s, int sp) {
+		TextView t = new TextView(c);
+		t.setText(s);
+		t.setTextSize(sp);
+		t.setTextColor(Color.WHITE);
+		return t;
+	}
+
+	static LinearLayout column(Context c) {
+		LinearLayout box = new LinearLayout(c);
+		box.setOrientation(LinearLayout.VERTICAL);
+		box.setGravity(Gravity.CENTER);
+		int p = dp(c, 32);
+		box.setPadding(p, p, p, p);
+		return box;
+	}
+
+	static LinearLayout row(Context c) {
+		LinearLayout row = new LinearLayout(c);
+		row.setGravity(Gravity.CENTER);
+		return row;
+	}
+
+	static EditText field(Context c, String hint, int inputType) {
+		EditText e = new EditText(c);
+		e.setHint(hint);
+		e.setInputType(inputType);
+		e.setTextColor(Color.WHITE);
+		e.setHintTextColor(Color.GRAY);
+		e.setMinWidth(dp(c, 400));
+		e.setSingleLine(true);
+		return e;
+	}
+
+	static int password() {
+		return InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD;
+	}
+
+	/** Focus ring and a small zoom: the only focus feedback on a TV. */
+	static void focusable(View v) {
+		v.setFocusable(true);
+		v.setForeground(v.getContext().getDrawable(R.drawable.focus_ring));
+		v.setOnFocusChangeListener((x, has) -> zoom(x, has));
+	}
+
+	private static void zoom(View v, boolean in) {
+		v.animate().scaleX(in ? 1.08f : 1f).scaleY(in ? 1.08f : 1f).setDuration(120).start();
+	}
+
+	/** Icon-only button; its label shows under it while it has focus. Child 0 is the ImageView. */
+	static LinearLayout iconButton(Context c, int icon, String label, View.OnClickListener click) {
+		LinearLayout box = new LinearLayout(c);
+		box.setOrientation(LinearLayout.VERTICAL);
+		box.setGravity(Gravity.CENTER_HORIZONTAL);
+		int p = dp(c, 10);
+		box.setPadding(p, p, p, p / 2);
+		ImageView image = new ImageView(c);
+		image.setImageResource(icon);
+		image.setContentDescription(label);
+		int s = dp(c, 36);
+		box.addView(image, new LinearLayout.LayoutParams(s, s));
+		TextView t = text(c, label, 12);
+		t.setVisibility(View.INVISIBLE);
+		box.addView(t);
+		box.setFocusable(true);
+		box.setForeground(c.getDrawable(R.drawable.focus_ring));
+		box.setOnFocusChangeListener((v, has) -> {
+			t.setVisibility(has ? View.VISIBLE : View.INVISIBLE);
+			zoom(v, has);
+		});
+		box.setOnClickListener(click);
+		return box;
+	}
+
+	static void blur(ImageView v, float radius) {
+		v.setRenderEffect(RenderEffect.createBlurEffect(radius, radius, Shader.TileMode.CLAMP));
+	}
+
+	static RecyclerView list(Context c, int orientation) {
+		RecyclerView rv = new RecyclerView(c);
+		rv.setLayoutManager(new LinearLayoutManager(c, orientation, false));
+		int p = dp(c, 24);
+		rv.setPadding(p, 0, p, 0);
+		rv.setClipToPadding(false);
+		return rv;
+	}
+
+	static RecyclerView grid(Context c, List<TileAdapter.Tile> tiles, int w, int h, int span) {
+		RecyclerView rv = new RecyclerView(c);
+		rv.setLayoutManager(new GridLayoutManager(c, span));
+		rv.setAdapter(new TileAdapter(tiles, w, h));
+		int p = dp(c, 24);
+		rv.setPadding(p, p, p, p);
+		rv.setClipToPadding(false);
+		return rv;
+	}
+
+	/** Tiles that open the viewer on posts, starting at the chosen one. */
+	static List<TileAdapter.Tile> postTiles(Context c, List<Post> posts) {
+		List<TileAdapter.Tile> tiles = new ArrayList<>();
+		for (int i = 0; i < posts.size(); i++) {
+			int start = i;
+			tiles.add(TileAdapter.post(posts.get(i), () -> Playlist.open(c, posts, start)));
+		}
+		return tiles;
+	}
+}