UI for Sharing Blogs

This commit refactors the code for sharing forums, so it can be used for sharing blogs as well. It does not yet include code for responding to blog invitations.
2026-02-12 18:59:06 +01:00 · 2016-08-01 20:13:12 -03:00
parent 4a4366078a
commit 2f7d188a07
19 changed files with 220 additions and 89 deletions
--- a/briar-android/src/org/briarproject/android/sharing/ContactSelectorAdapter.java
+++ b/briar-android/src/org/briarproject/android/sharing/ContactSelectorAdapter.java
@@ -0,0 +1,127 @@
+package org.briarproject.android.sharing;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.graphics.ColorFilter;
+import android.graphics.PorterDuff;
+import android.graphics.PorterDuffColorFilter;
+import android.os.Build;
+import android.support.v4.content.ContextCompat;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.TextView;
+
+import org.briarproject.R;
+import org.briarproject.android.contact.BaseContactListAdapter;
+import org.briarproject.android.contact.ContactListItem;
+import org.briarproject.api.contact.ContactId;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import static android.view.View.GONE;
+import static android.view.View.VISIBLE;
+
+class ContactSelectorAdapter
+		extends BaseContactListAdapter<ContactSelectorAdapter.SelectableContactHolder> {
+
+	private final ColorFilter grayColorFilter;
+
+	ContactSelectorAdapter(Context context,
+			OnItemClickListener listener) {
+
+		super(context, listener);
+		if (Build.VERSION.SDK_INT >= 11) {
+			grayColorFilter = null;
+		} else {
+			// Overlay the background colour at 75% opacity
+			int bg = ContextCompat.getColor(context, R.color.window_background);
+			int alpha = (int) (255 * 0.75f);
+			int red = Color.red(bg);
+			int green = Color.green(bg);
+			int blue = Color.blue(bg);
+			bg = Color.argb(alpha, red, green, blue);
+			grayColorFilter = new PorterDuffColorFilter(bg,
+					PorterDuff.Mode.SRC_OVER);
+		}
+	}
+
+	@Override
+	public SelectableContactHolder onCreateViewHolder(ViewGroup viewGroup,
+			int i) {
+		View v = LayoutInflater.from(ctx).inflate(
+				R.layout.list_item_selectable_contact, viewGroup, false);
+
+		return new SelectableContactHolder(v);
+	}
+
+	@Override
+	public void onBindViewHolder(SelectableContactHolder ui, int position) {
+		super.onBindViewHolder(ui, position);
+
+		SelectableContactListItem item =
+				(SelectableContactListItem) getItem(position);
+
+		if (item.isSelected()) {
+			ui.checkBox.setChecked(true);
+		} else {
+			ui.checkBox.setChecked(false);
+		}
+
+		if (item.isDisabled()) {
+			// we share this forum already with that contact
+			ui.layout.setEnabled(false);
+			ui.shared.setVisibility(VISIBLE);
+			grayOutItem(ui, true);
+		} else {
+			ui.layout.setEnabled(true);
+			ui.shared.setVisibility(GONE);
+			grayOutItem(ui, false);
+		}
+	}
+
+	Collection<ContactId> getSelectedContactIds() {
+		Collection<ContactId> selected = new ArrayList<>();
+
+		for (int i = 0; i < contacts.size(); i++) {
+			SelectableContactListItem item =
+					(SelectableContactListItem) contacts.get(i);
+			if (item.isSelected()) selected.add(item.getContact().getId());
+		}
+
+		return selected;
+	}
+
+	static class SelectableContactHolder
+			extends BaseContactListAdapter.BaseContactHolder {
+
+		private final CheckBox checkBox;
+		private final TextView shared;
+
+		SelectableContactHolder(View v) {
+			super(v);
+
+			checkBox = (CheckBox) v.findViewById(R.id.checkBox);
+			shared = (TextView) v.findViewById(R.id.infoView);
+		}
+	}
+
+	@Override
+	public int compareContactListItems(ContactListItem c1, ContactListItem c2) {
+		return compareByName(c1, c2);
+	}
+
+	private void grayOutItem(SelectableContactHolder ui, boolean gray) {
+		if (Build.VERSION.SDK_INT >= 11) {
+			float alpha = gray ? 0.25f : 1f;
+			ui.avatar.setAlpha(alpha);
+			ui.name.setAlpha(alpha);
+			ui.checkBox.setAlpha(alpha);
+		} else {
+			if (gray) ui.avatar.setColorFilter(grayColorFilter);
+			else ui.avatar.clearColorFilter();
+		}
+	}
+}