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/*
 * #%L
 * fujion
 * %%
 * Copyright (C) 2018 Fujion Framework
 * %%
 * 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.
 *
 * #L%
 */
package org.fujion.component;

import org.fujion.ancillary.MimeContent;
import org.fujion.annotation.Component;
import org.fujion.annotation.Component.PropertyGetter;
import org.fujion.annotation.Component.PropertySetter;

/**
 * A component representing an embedded image.
 */
@Component(tag = "image", widgetClass = "Image", parentTag = "*", description = "A component representing an embedded image.")
public class Image extends BaseUIComponent {

    private String src;

    private String alt;

    public Image() {
    }

    public Image(String src) {
        setSrc(src);
    }

    public Image(String src, String alt) {
        setSrc(src);
        setAlt(alt);
    }

    public Image(MimeContent content) {
        setContent(content);
    }

    /**
     * Returns the URL of the image resource.
     *
     * @return URL of the image resource.
     */
    @PropertyGetter(value = "src", description = "The URL of the image resource.")
    public String getSrc() {
        return src;
    }

    /**
     * Sets the URL of the image resource.
     *
     * @param src URL of the image resource.
     */
    @PropertySetter(value = "src", description = "The URL of the image resource.")
    public void setSrc(String src) {
        propertyChange("src", this.src, this.src = nullify(src), true);
    }

    /**
     * Directly sets the image content.
     *
     * @param content The image content.
     */
    public void setContent(MimeContent content) {
        setSrc(content == null ? null : content.getSrc());
    }

    /**
     * Returns the alternate text for the image.
     *
     * @return The alternate text for the image.
     */
    @PropertyGetter(value = "alt", description = "The alternate text for the image.")
    public String getAlt() {
        return alt;
    }

    /**
     * Sets the alternate text for the image.
     *
     * @param alt The alternate text for the image.
     */
    @PropertySetter(value = "alt", description = "The alternate text for the image.")
    public void setAlt(String alt) {
        propertyChange("alt", this.alt, this.alt = nullify(alt), true);
    }
}