com.htmlhifive.tools.codeassist.core.proposal.wrapper.FunctionProposalWrapper.java Source code

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Here is the source code for com.htmlhifive.tools.codeassist.core.proposal.wrapper.FunctionProposalWrapper.java

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/*
 * Copyright (C) 2012 NS Solutions Corporation
 *
 * 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.htmlhifive.tools.codeassist.core.proposal.wrapper;

import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.DocumentEvent;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IInformationControlCreator;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.contentassist.IContextInformation;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.wst.jsdt.core.IJavaScriptElement;
import org.eclipse.wst.jsdt.internal.ui.text.html.HTMLPrinter;
import org.eclipse.wst.jsdt.internal.ui.text.java.FilledArgumentNamesMethodProposal;
import org.eclipse.wst.jsdt.ui.PreferenceConstants;
import org.eclipse.wst.jsdt.ui.text.java.IJavaCompletionProposal;

/**
 * ??.
 * 
 * @author NS Solutions Corporation
 * 
 */
@SuppressWarnings("restriction")
public class FunctionProposalWrapper implements ProposalWrapper {

    /**
     * ??.
     */
    private FilledArgumentNamesMethodProposal proposal;
    /**
     * CSS.
     */
    private String fgCSSStyles;
    /**
     * .
     */
    private String helpDocument;

    /**
     * .<br>
     * 
     * @param proposal ?.
     */
    FunctionProposalWrapper(FilledArgumentNamesMethodProposal proposal) {

        this.proposal = proposal;

    }

    /**
     * .<br>
     * 
     * @param proposal ?.
     * @param helpDocument .
     */
    FunctionProposalWrapper(FilledArgumentNamesMethodProposal proposal, String helpDocument) {

        this(proposal);
        this.helpDocument = helpDocument;
    }

    @Override
    public final IContextInformation getContextInformation() {

        return proposal.getContextInformation();
    }

    @Override
    public final String getDisplayString() {

        return proposal.getDisplayString();
    }

    @Override
    public final int getReplacementOffset() {

        return proposal.getReplacementOffset();
    }

    @Override
    public final int getReplacementLength() {

        return proposal.getReplacementLength();
    }

    @Override
    public final String getReplacementString() {

        return proposal.getReplacementString();
    }

    @Override
    public final Image getImage() {

        return proposal.getImage();
    }

    @Override
    public final String getAdditionalProposalInfo() {

        if (helpDocument == null) {
            return proposal.getAdditionalProposalInfo();
        }
        StringBuffer buffer = new StringBuffer();
        HTMLPrinter.insertPageProlog(buffer, 0, getCSSStyles());
        buffer.append(helpDocument);
        HTMLPrinter.addPageEpilog(buffer);
        String info = buffer.toString();
        return info;
    }

    @Override
    public IJavaScriptElement getJavaElement() {

        return proposal.getJavaElement();
    }

    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {

        return proposal.toString();
    }

    @Override
    public IJavaCompletionProposal getRealProp() {

        return proposal;
    }

    @Override
    public void apply(IDocument document, char trigger, int offset) {

        proposal.apply(document, trigger, offset);
    }

    @Override
    public CharSequence getPrefixCompletionText(IDocument document, int completionOffset) {

        return proposal.getPrefixCompletionText(document, completionOffset);
    }

    @Override
    public Point getSelection(IDocument document) {

        return proposal.getSelection(document);
    }

    @Override
    public final char[] getTriggerCharacters() {

        return proposal.getTriggerCharacters();
    }

    @Override
    public final int getPrefixCompletionStart(IDocument document, int completionOffset) {

        return proposal.getPrefixCompletionStart(document, completionOffset);
    }

    @Override
    public final void apply(IDocument document) {

        proposal.apply(document);
    }

    @Override
    public final int getRelevance() {

        return proposal.getRelevance();
    }

    @Override
    public void apply(ITextViewer viewer, char trigger, int stateMask, int offset) {

        proposal.apply(viewer, trigger, stateMask, offset);
    }

    @Override
    public final int getContextInformationPosition() {

        return proposal.getContextInformationPosition();
    }

    @Override
    public IInformationControlCreator getInformationControlCreator() {

        return proposal.getInformationControlCreator();
    }

    @Override
    public int hashCode() {

        return proposal.hashCode();
    }

    @Override
    public boolean isValidFor(IDocument document, int offset) {

        return proposal.isValidFor(document, offset);
    }

    @Override
    public boolean validate(IDocument document, int offset, DocumentEvent event) {

        return proposal.validate(document, offset, event);
    }

    @Override
    public void selected(ITextViewer viewer, boolean smartToggle) {

        proposal.selected(viewer, smartToggle);
    }

    @Override
    public void unselected(ITextViewer viewer) {

        proposal.unselected(viewer);
    }

    /**
     * Returns the style information for displaying HTML (Javadoc) content.
     * 
     * @return the CSS styles
     * 
     */
    private String getCSSStyles() {

        if (fgCSSStyles == null) {
            fgCSSStyles = ProposalWrapperUtils.getCSSStyles();
        }
        String css = fgCSSStyles;
        if (css != null) {
            FontData fontData = JFaceResources.getFontRegistry()
                    .getFontData(PreferenceConstants.APPEARANCE_JAVADOC_FONT)[0];
            css = HTMLPrinter.convertTopLevelFont(css, fontData);
        }
        return css;
    }
}