edu.arizona.biosemantics.gxt.theme.green.client.base.field.Css3TextAreaAppearance.java Source code

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Here is the source code for edu.arizona.biosemantics.gxt.theme.green.client.base.field.Css3TextAreaAppearance.java

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/**
 * Sencha GXT 3.1.1 - Sencha for GWT
 * Copyright(c) 2007-2014, Sencha, Inc.
 * licensing@sencha.com
 *
 * http://www.sencha.com/products/gxt/license/
 */
package edu.arizona.biosemantics.gxt.theme.green.client.base.field;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.resources.client.ClientBundle;
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.TextAreaInputCell.TextAreaAppearance;
import com.sencha.gxt.cell.core.client.form.TextAreaInputCell.TextAreaCellOptions;
import com.sencha.gxt.core.client.GXT;
import com.sencha.gxt.core.client.dom.XElement;
import com.sencha.gxt.core.client.util.Size;
import edu.arizona.biosemantics.gxt.theme.green.client.base.field.Css3TextFieldAppearance.Css3TextFieldStyle;

/**
 *
 */
public class Css3TextAreaAppearance extends Css3ValueBaseFieldAppearance implements TextAreaAppearance {

    public interface Css3TextAreaResources extends Css3ValueBaseFieldResources, ClientBundle {
        @Source({ "Css3ValueBaseField.css", "Css3TextField.css", "Css3TextArea.css" })
        Css3TextAreaStyle style();
    }

    public interface Css3TextAreaStyle extends Css3TextFieldStyle {
        String area();
    }

    private final Css3TextAreaStyle style;

    public Css3TextAreaAppearance() {
        this(GWT.<Css3TextAreaResources>create(Css3TextAreaResources.class));
    }

    public Css3TextAreaAppearance(Css3TextAreaResources resources) {
        super(resources);

        this.style = resources.style();
    }

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

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

        Size adj = adjustTextAreaSize(width, height);

        if (width != -1) {
            frame.getStyle().setWidth(width, Unit.PX);
            width = adj.getWidth();
            inputElement.getStyle().setWidth(width, Unit.PX);
        }

        if (height != -1) {
            frame.getStyle().setHeight(height, Unit.PX);
            height = adj.getHeight();
            inputElement.getStyle().setHeight(height, Unit.PX);
        }
    }

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

        int width = options.getWidth();
        int height = options.getHeight();

        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;
        }

        Size adjusted = adjustTextAreaSize(width, height);

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

        if (height != -1) {
            height = adjusted.getHeight();
            inputStyles += "height: " + height + "px;";
        }

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

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

        if (options instanceof TextAreaCellOptions) {
            TextAreaCellOptions opts = (TextAreaCellOptions) options;
            inputStyles += "resize:" + opts.getResizable().name().toLowerCase() + ";";
        }

        sb.appendHtmlConstant("<div style='" + wrapStyles + "' class='" + style.wrap() + "'>");
        sb.appendHtmlConstant("<textarea " + name + disabled + " style='" + inputStyles + "' type='text' class='"
                + cls + "'" + ro + placeholder + ">");
        sb.append(SafeHtmlUtils.fromString(value));
        sb.appendHtmlConstant("</textarea></div>");
    }

    protected Size adjustTextAreaSize(int width, int height) {
        width = Math.max(0, width);
        height = Math.max(0, height);
        return new Size(width, height);
    }
}