com.gluonhq.richtextarea.viewmodel.ActionCmdRemoveExtremesAndDecorate Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of rich-text-area Show documentation
Rich text control for JavaFX
The newest version!
/*
 * Copyright (c) 2024, Gluon
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL GLUON BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.gluonhq.richtextarea.viewmodel;

import com.gluonhq.richtextarea.Selection;
import com.gluonhq.richtextarea.model.Decoration;
import javafx.beans.binding.BooleanBinding;

import java.util.Objects;

public class ActionCmdRemoveExtremesAndDecorate implements ActionCmd {

    private final Selection selection;
    private final Decoration decoration;

    public ActionCmdRemoveExtremesAndDecorate(Selection selection, Decoration decoration) {
        this.selection = Objects.requireNonNull(selection);
        this.decoration = Objects.requireNonNull(decoration);
    }

    @Override
    public void apply(RichTextAreaViewModel viewModel) {
        if (viewModel.isEditable()) {

            Selection internalSelection = viewModel.getTextBuffer().getInternalSelection(selection);

            // Undo adding last unit
            // This is needed to allow undo() calls.
            // (Otherwise, calling undo() would remove the emoji, but then, as this last unit would be
            // present, there would be immediately a call to select and replace the content with the
            // emoji once again, and as a result, undo() won't do anything, at least apparently for the user)
            viewModel.getCommandManager().undo();

            // Update selection accordingly, removing from the original selection the length of the
            // removed last unit (based on the length of the text)
            Selection newSelection = new Selection(internalSelection.getStart(), Math.min(internalSelection.getEnd(), viewModel.getTextLength()));
            viewModel.getCommandManager().execute(new RemoveStartAndDecorateCmd(newSelection, decoration));
        }
    }

    @Override
    public BooleanBinding getDisabledBinding(RichTextAreaViewModel viewModel) {
        return viewModel.editableProperty().not();
    }
}