mirror of https://github.com/M66B/FairEmail.git
81 lines
2.4 KiB
Java
81 lines
2.4 KiB
Java
package eu.faircode.email;
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/*
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This file is part of FairEmail.
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FairEmail is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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FairEmail is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2018-2022 by Marcel Bokhorst (M66B)
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*/
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import androidx.annotation.NonNull;
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import androidx.recyclerview.selection.SelectionTracker;
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import androidx.recyclerview.widget.RecyclerView;
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public class SelectionPredicateMessage extends SelectionTracker.SelectionPredicate<Long> {
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private boolean enabled;
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private RecyclerView recyclerView;
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SelectionPredicateMessage(RecyclerView recyclerView) {
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this.enabled = true;
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this.recyclerView = recyclerView;
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}
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void setEnabled(boolean enabled) {
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this.enabled = enabled;
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}
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@Override
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public boolean canSetStateForKey(@NonNull Long key, boolean nextState) {
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if (!enabled)
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return false;
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AdapterMessage adapter = (AdapterMessage) recyclerView.getAdapter();
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TupleMessageEx message = adapter.getItemForKey(key);
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if (message == null) // happens when restoring state
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return true;
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if (message.accountProtocol != EntityAccount.TYPE_IMAP)
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return true;
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if (message.uid != null)
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return true;
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return false;
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}
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@Override
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public boolean canSetStateAtPosition(int position, boolean nextState) {
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if (!enabled)
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return false;
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AdapterMessage adapter = (AdapterMessage) recyclerView.getAdapter();
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TupleMessageEx message = adapter.getItemAtPosition(position);
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if (message == null) // happens when restoring state
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return true;
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if (message.accountProtocol != EntityAccount.TYPE_IMAP)
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return true;
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if (message.uid != null && !message.folderReadOnly)
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return true;
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return false;
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}
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@Override
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public boolean canSelectMultiple() {
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return true;
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}
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} |