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- /*
- * Copyright 2000-2016 Vaadin Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
- package com.vaadin.ui;
-
- import java.util.Objects;
-
- import org.jsoup.nodes.Element;
-
- import com.vaadin.shared.ui.ValueChangeMode;
- import com.vaadin.shared.ui.richtextarea.RichTextAreaClientRpc;
- import com.vaadin.shared.ui.richtextarea.RichTextAreaServerRpc;
- import com.vaadin.shared.ui.richtextarea.RichTextAreaState;
- import com.vaadin.ui.declarative.DesignContext;
-
- import elemental.json.Json;
-
- /**
- * A simple RichTextArea to edit HTML format text.
- */
- public class RichTextArea extends AbstractField<String>
- implements HasValueChangeMode {
-
- private class RichTextAreaServerRpcImpl implements RichTextAreaServerRpc {
- @Override
- public void setText(String text) {
- updateDiffstate("value", Json.create(text));
- if (!setValue(text, true)) {
- // The value was not updated, this could happen if the field has
- // been set to readonly on the server and the client does not
- // know about it yet. Must re-send the correct state back.
- markAsDirty();
- }
- }
- }
-
- /**
- * Constructs an empty <code>RichTextArea</code> with no caption.
- */
- public RichTextArea() {
- super();
- registerRpc(new RichTextAreaServerRpcImpl());
- setValue("");
- }
-
- /**
- * Constructs an empty <code>RichTextArea</code> with the given caption.
- *
- * @param caption
- * the caption for the editor.
- */
- public RichTextArea(String caption) {
- this();
- setCaption(caption);
- }
-
- /**
- * Constructs a new <code>RichTextArea</code> with the given caption and
- * initial text contents.
- *
- * @param caption
- * the caption for the editor.
- * @param value
- * the initial text content of the editor.
- */
- public RichTextArea(String caption, String value) {
- this(caption);
- setValue(value);
- }
-
- @Override
- public void readDesign(Element design, DesignContext designContext) {
- super.readDesign(design, designContext);
- setValue(design.html());
- }
-
- @Override
- public void writeDesign(Element design, DesignContext designContext) {
- super.writeDesign(design, designContext);
- design.html(getValue());
- }
-
- @Override
- protected RichTextAreaState getState() {
- return (RichTextAreaState) super.getState();
- }
-
- @Override
- protected RichTextAreaState getState(boolean markAsDirty) {
- return (RichTextAreaState) super.getState(markAsDirty);
- }
-
- /**
- * Sets the value of this object. If the new value is not equal to
- * {@code getValue()}, fires a {@link ValueChangeEvent}. Throws
- * {@code NullPointerException} if the value is null.
- *
- * @param value
- * the new value, not {@code null}
- * @throws NullPointerException
- * if {@code value} is {@code null}
- */
- @Override
- public void setValue(String value) {
- Objects.requireNonNull(value, "value cannot be null");
- setValue(value, false);
- }
-
- @Override
- public String getValue() {
- return getState(false).value;
- }
-
- @Override
- public String getEmptyValue() {
- return "";
- }
-
- @Override
- protected void doSetValue(String value) {
- getState().value = value;
- }
-
- /**
- * Selects all text in the rich text area. As a side effect, focuses the
- * rich text area.
- *
- * @since 6.5
- */
- public void selectAll() {
- getRpcProxy(RichTextAreaClientRpc.class).selectAll();
- focus();
- }
-
- @Override
- public void setValueChangeMode(ValueChangeMode mode) {
- getState().valueChangeMode = mode;
- }
-
- @Override
- public ValueChangeMode getValueChangeMode() {
- return getState(false).valueChangeMode;
- }
-
- @Override
- public void setValueChangeTimeout(int timeout) {
- getState().valueChangeTimeout = timeout;
-
- }
-
- @Override
- public int getValueChangeTimeout() {
- return getState(false).valueChangeTimeout;
- }
-
- /**
- * Clears the value of this field.
- */
- @Override
- public void clear() {
- setValue("");
- }
- }
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