name.martingeisse.webide.editor.codemirror.panel.AbstractCodeMirrorEditorPanel.java Source code

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Here is the source code for name.martingeisse.webide.editor.codemirror.panel.AbstractCodeMirrorEditorPanel.java

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/**
 * Copyright (c) 2010 Martin Geisse
 *
 * This file is distributed under the terms of the MIT license.
 */

package name.martingeisse.webide.editor.codemirror.panel;

import name.martingeisse.webide.application.Configuration;
import name.martingeisse.webide.editor.codemirror.ot.Dummy;
import name.martingeisse.webide.resources.ResourceHandle;
import name.martingeisse.webide.util.NoTrimTextArea;
import name.martingeisse.wicket.util.WicketHeadUtil;

import org.apache.wicket.ajax.markup.html.form.AjaxButton;
import org.apache.wicket.markup.head.CssHeaderItem;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.TextArea;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.request.resource.CssResourceReference;
import org.apache.wicket.request.resource.JavaScriptResourceReference;

/**
 * Base class for CodeMirror based editor panels. Subclasses must
 * provide Javascript code to actually create the CodeMirror instance
 * for the text area.
 */
public class AbstractCodeMirrorEditorPanel extends Panel {

    /**
     * the resourceHandle
     */
    private final ResourceHandle resourceHandle;

    /**
     * Constructor.
     * @param id the wicket id
     * @param contentsModel the model
     * @param resourceHandle the handle of the workspace resource being edited
     */
    public AbstractCodeMirrorEditorPanel(String id, IModel<String> contentsModel, ResourceHandle resourceHandle) {
        super(id, contentsModel);
        this.resourceHandle = resourceHandle;

        final Form<Void> editorForm = new Form<Void>("form") {
            @Override
            protected void onSubmit() {

                // save the resource
                final ResourceHandle resourceHandle = AbstractCodeMirrorEditorPanel.this.resourceHandle;
                final String newContents = (String) AbstractCodeMirrorEditorPanel.this.getDefaultModelObject();
                resourceHandle.writeFile(newContents, true, true);

                // TODO store the "workspace building" indicator globally, update by the
                // builder thread, then push via Atmosphere. Same for resource markers.

            }
        };

        // TODO: don't load the contents for CodeMirror, we don't need them here (alt: pass directly
        // to the OT server)
        editorForm.add(new NoTrimTextArea<String>("textarea").setOutputMarkupId(true));
        editorForm.add(new AjaxButton("submit", editorForm) {
        });
        add(editorForm);

    }

    /* (non-Javadoc)
     * @see org.apache.wicket.Component#renderHead(org.apache.wicket.markup.head.IHeaderResponse)
     */
    @Override
    public void renderHead(IHeaderResponse response) {
        super.renderHead(response);
        response.render(CssHeaderItem
                .forReference(new CssResourceReference(AbstractCodeMirrorEditorPanel.class, "codemirror.css")));
        response.render(JavaScriptHeaderItem.forReference(
                new JavaScriptResourceReference(AbstractCodeMirrorEditorPanel.class, "codemirror.js")));
        WicketHeadUtil.includeClassJavascript(response, AbstractCodeMirrorEditorPanel.class);
        response.render(JavaScriptHeaderItem.forReference(new JavaScriptResourceReference(Dummy.class, "ot.js")));
        response.render(JavaScriptHeaderItem
                .forUrl("http://" + Configuration.getSelfDomain() + ":8081/socket.io/socket.io.js"));
        response.render(JavaScriptHeaderItem
                .forScript("window.selfDomain = '" + Configuration.getSelfDomain() + "';", null));
    }

    /**
     * Returns the text area for which subclasses must create a CodeMirror instance.
     * @return the text area
     */
    @SuppressWarnings("unchecked")
    public final TextArea<String> getTextArea() {
        return (TextArea<String>) get("form").get("textarea");
    }

    /**
     * Getter method for the resourceHandle.
     * @return the resourceHandle
     */
    public ResourceHandle getResourceHandle() {
        return resourceHandle;
    }

}