com.sencha.gxt.theme.base.client.field.TextFieldDefaultAppearance.java Source code

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Here is the source code for com.sencha.gxt.theme.base.client.field.TextFieldDefaultAppearance.java

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/**
 * Sencha GXT 4.0.0 - Sencha for GWT
 * Copyright (c) 2006-2015, Sencha Inc.
 *
 * licensing@sencha.com
 * http://www.sencha.com/products/gxt/license/
 *
 * ================================================================================
 * Open Source License
 * ================================================================================
 * This version of Sencha GXT is licensed under the terms of the Open Source GPL v3
 * license. You may use this license only if you are prepared to distribute and
 * share the source code of your application under the GPL v3 license:
 * http://www.gnu.org/licenses/gpl.html
 *
 * If you are NOT prepared to distribute and share the source code of your
 * application under the GPL v3 license, other commercial and oem licenses
 * are available for an alternate download of Sencha GXT.
 *
 * Please see the Sencha GXT Licensing page at:
 * http://www.sencha.com/products/gxt/license/
 *
 * For clarification or additional options, please contact:
 * licensing@sencha.com
 * ================================================================================
 *
 *
 * ================================================================================
 * Disclaimer
 * ================================================================================
 * THIS SOFTWARE IS DISTRIBUTED "AS-IS" WITHOUT ANY WARRANTIES, CONDITIONS AND
 * REPRESENTATIONS WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE
 * IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, MERCHANTABLE QUALITY,
 * FITNESS FOR A PARTICULAR PURPOSE, DURABILITY, NON-INFRINGEMENT, PERFORMANCE AND
 * THOSE ARISING BY STATUTE OR FROM CUSTOM OR USAGE OF TRADE OR COURSE OF DEALING.
 * ================================================================================
 */
package com.sencha.gxt.theme.base.client.field;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Element;
import com.google.gwt.resources.client.ClientBundle;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.resources.client.ImageResource.ImageOptions;
import com.google.gwt.resources.client.ImageResource.RepeatStyle;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.sencha.gxt.cell.core.client.form.FieldCell.FieldAppearanceOptions;
import com.sencha.gxt.cell.core.client.form.TextInputCell.TextFieldAppearance;
import com.sencha.gxt.core.client.GXT;
import com.sencha.gxt.core.client.dom.XElement;

public class TextFieldDefaultAppearance extends ValueBaseFieldDefaultAppearance implements TextFieldAppearance {

    public interface TextFieldResources extends ValueBaseFieldResources, ClientBundle {

        @Source({ "ValueBaseField.gss", "TextField.gss" })
        TextFieldStyle css();

        @ImageOptions(repeatStyle = RepeatStyle.Horizontal)
        ImageResource textBackground();
    }

    public interface TextFieldStyle extends ValueBaseFieldStyle {

        String area();

        String file();

        String text();

    }

    private final TextFieldResources resources;
    private final TextFieldStyle style;

    public TextFieldDefaultAppearance() {
        this(GWT.<TextFieldResources>create(TextFieldResources.class));
    }

    public TextFieldDefaultAppearance(TextFieldResources resources) {
        super(resources);
        this.resources = resources;
        this.style = this.resources.css();
    }

    @Override
    public XElement getInputElement(Element parent) {
        return parent.getFirstChildElement().getFirstChildElement().cast();
    }

    @Override
    public void onResize(XElement parent, int width, int height) {
        Element wrap = parent.getFirstChildElement();

        if (width != -1 && width > 0) {
            wrap.getStyle().setPropertyPx("width", width);

            width = adjustTextAreaWidth(width);

            if (width > 0) {
                wrap.getFirstChildElement().getStyle().setPropertyPx("width", width);
            }
        }
    }

    @Override
    public void render(SafeHtmlBuilder sb, String type, String value, FieldAppearanceOptions options) {
        String inputStyles = "";
        String wrapStyles = "";

        int width = options.getWidth();

        String name = options.getName() != null ? " name='" + options.getName() + "' " : "";
        String disabled = options.isDisabled() ? "disabled=true" : "";
        String placeholder = options.getEmptyText() != null
                ? " placeholder='" + SafeHtmlUtils.htmlEscape(options.getEmptyText()) + "' "
                : "";

        boolean empty = false;

        if ((value == null || value.equals("")) && options.getEmptyText() != null) {
            if (GXT.isIE8() || GXT.isIE9()) {
                value = options.getEmptyText();
            }
            empty = true;
        }

        if (width != -1) {
            wrapStyles += "width:" + width + "px;";
            width = adjustTextAreaWidth(width);
            inputStyles += "width:" + width + "px;";
        }

        String cls = style.text() + " " + style.field();
        if (empty) {
            cls += " " + style.empty();
        }

        String ro = options.isReadonly() ? " readonly" : "";

        value = SafeHtmlUtils.htmlEscape(value);

        sb.appendHtmlConstant("<div style='" + wrapStyles + "' class='" + style.wrap() + "'>");
        sb.appendHtmlConstant("<input " + name + disabled + " value='" + value + "' style='" + inputStyles
                + "' type='" + type + "' class='" + cls + "'" + ro + placeholder + ">");
        sb.appendHtmlConstant("</div>");

    }

    protected int adjustTextAreaWidth(int width) {
        // 6px margin, 2px border
        if (width != -1) {
            width = Math.max(0, width - 8);
        }
        return width;
    }
}