Java Code Examples for org.eclipse.jface.internal.text.html.HTMLPrinter#insertPageProlog()

protected XtextBrowserInformationControlInput getHoverInfo(EObject element, IRegion hoverRegion,
		XtextBrowserInformationControlInput previous) {
	String html = getHoverInfoAsHtml(element);
	if (html != null) {
		StringBuffer buffer = new StringBuffer(html);
		ColorRegistry registry = JFaceResources.getColorRegistry();
		RGB fgRGB = registry.getRGB("org.eclipse.ui.workbench.HOVER_FOREGROUND"); //$NON-NLS-1$
		RGB bgRGB = registry.getRGB("org.eclipse.ui.workbench.HOVER_BACKGROUND"); //$NON-NLS-1$
		if (fgRGB != null && bgRGB != null) {
			HTMLPrinter.insertPageProlog(buffer, 0, fgRGB, bgRGB, getStyleSheet());
		} else {
			HTMLPrinter.insertPageProlog(buffer, 0, getStyleSheet());
		}
		HTMLPrinter.addPageEpilog(buffer);
		html = buffer.toString();
		return new XtextBrowserInformationControlInput(previous, element, html, labelProvider);
	}
	return null;
}
 

private String toHtml(String header, String string, String errorString, boolean addPreFormatted) {
	StringBuffer buffer= new StringBuffer();
	HTMLPrinter.addSmallHeader(buffer, header);

	if (string != null) {
		if (addPreFormatted) {
			HTMLPrinter.addParagraph(buffer, ""); //$NON-NLS-1$
			HTMLPrinter.addPreFormatted(buffer, HTMLPrinter.convertToHTMLContent(string));
		} else {
			HTMLPrinter.addParagraph(buffer, string);
		}
		if (errorString != null) {
			HTMLPrinter.addParagraph(buffer, errorString);
		}
	} else {
		HTMLPrinter.addParagraph(buffer, JavaHoverMessages.NLSStringHover_NLSStringHover_missingKeyWarning);
	}

	HTMLPrinter.insertPageProlog(buffer, 0);
	HTMLPrinter.addPageEpilog(buffer);
	return buffer.toString();
}
 

@Override
protected XtextBrowserInformationControlInput getHoverInfo(EObject element, IRegion hoverRegion,
		XtextBrowserInformationControlInput previous) {
	//TODO remove this check when the typesystem works without a java project
	if (isValidationDisabled(element))
		return null;
	EObject objectToView = getObjectToView(element);
	if(objectToView == null || objectToView.eIsProxy())
		return null;
	String html = getHoverInfoAsHtml(element, objectToView, hoverRegion);
	if (html != null) {
		StringBuffer buffer = new StringBuffer(html);
		ColorRegistry registry = JFaceResources.getColorRegistry();
		RGB fgRGB = registry.getRGB("org.eclipse.ui.workbench.HOVER_FOREGROUND"); //$NON-NLS-1$
		RGB bgRGB = registry.getRGB("org.eclipse.ui.workbench.HOVER_BACKGROUND"); //$NON-NLS-1$
		if (fgRGB != null && bgRGB != null) {
			HTMLPrinter.insertPageProlog(buffer, 0, fgRGB, bgRGB, getStyleSheet());
		} else {
			HTMLPrinter.insertPageProlog(buffer, 0, getStyleSheet());
		}
		HTMLPrinter.addPageEpilog(buffer);
		html = buffer.toString();
		IJavaElement javaElement = null;
		if (objectToView != element && objectToView instanceof JvmIdentifiableElement) {
			javaElement = javaElementFinder.findElementFor((JvmIdentifiableElement) objectToView);
		}
		return new XbaseInformationControlInput(previous, objectToView, javaElement, html, labelProvider);
	}
	return null;
}
 

public static void endPage(StringBuffer buffer, ITextViewer textViewer) {
	ITheme theme = null;
	if (textViewer != null) {
		TMPresentationReconciler reconciler = getTMPresentationReconciler(textViewer);
		if (reconciler != null) {
			theme = (ITheme) reconciler.getTokenProvider();
		}
		if (theme == null) {
			theme = TMUIPlugin.getThemeManager().getDefaultTheme();
		}
	}
	HTMLPrinter.insertPageProlog(buffer, 0, colorInfoForeground, colorInfoBackround,
			HTMLTypeScriptPrinter.getStyleSheet() + (theme != null ? theme.toCSSStyleSheet() : ""));
	HTMLPrinter.addPageEpilog(buffer);
}
 

public Object getAdditionalProposalInfo(IProgressMonitor monitor) {
	if (getProposalInfo() != null) {
		String info= getProposalInfo().getInfo(monitor);
		if (info != null && info.length() > 0) {
			StringBuffer buffer= new StringBuffer();
			HTMLPrinter.insertPageProlog(buffer, 0, getCSSStyles());

			buffer.append(info);

			IJavaElement element= null;
			try {
				element= getProposalInfo().getJavaElement();
				if (element instanceof IMember) {
					String base= JavaDocLocations.getBaseURL(element, ((IMember) element).isBinary());
					if (base != null) {
						int endHeadIdx= buffer.indexOf("</head>"); //$NON-NLS-1$
						buffer.insert(endHeadIdx, "\n<base href='" + base + "'>\n"); //$NON-NLS-1$ //$NON-NLS-2$
					}
				}
			} catch (JavaModelException e) {
				JavaPlugin.log(e);
			}

			HTMLPrinter.addPageEpilog(buffer);
			info= buffer.toString();

			return new JavadocBrowserInformationControlInput(null, element, info, 0);
		}
	}
	return null;
}
 

/**
 * Computes the hover info and returns a {@link DocumentationBrowserInformationControlInput} for it.
 * 
 * @param element
 *            the resolved element
 * @param useHTMLTags
 * @param previousInput
 *            the previous input, or <code>null</code>
 * @param editorPart
 *            (can be <code>null</code>)
 * @param hoverRegion
 * @return the HTML hover info for the given element(s) or <code>null</code> if no information is available
 */
@SuppressWarnings("unused")
protected DocumentationBrowserInformationControlInput getHoverInfo(Object element, boolean useHTMLTags,
		DocumentationBrowserInformationControlInput previousInput, IEditorPart editorPart, IRegion hoverRegion)
{
	if (element == null)
	{
		return null;
	}
	StringBuffer buffer = new StringBuffer();
	String base = null;

	int leadingImageWidth = 0;
	setHeader(getHeader(element, editorPart, hoverRegion), buffer, useHTMLTags);
	setDocumentation(getDocumentation(element, editorPart, hoverRegion), buffer, useHTMLTags);
	if (buffer.length() > 0)
	{
		if (useHTMLTags)
		{
			Color borderColor = getBorderColor();
			Color bgColor = getBackgroundColor();
			Color fgColor = getForegroundColor();

			String borderColorHex = (borderColor != null) ? getHexColor(borderColor.getRGB())
					: DEFAULT_BORDER_COLOR;
			RGB bgRGB = (bgColor != null) ? bgColor.getRGB() : null;
			RGB fgRGB = (fgColor != null) ? fgColor.getRGB() : null;

			// We need to set the border color before we call insertPageProlog on the style-sheet
			String styleSheet = getStyleSheet();
			styleSheet = styleSheet.replaceAll(BORDER_COLOR_CSS_TEXT, borderColorHex);
			HTMLPrinter.insertPageProlog(buffer, 0, fgRGB, bgRGB, styleSheet);
			if (base != null)
			{
				int endHeadIdx = buffer.indexOf("</head>"); //$NON-NLS-1$
				buffer.insert(endHeadIdx, "\n<base href='" + base + "'>\n"); //$NON-NLS-1$ //$NON-NLS-2$
			}
			HTMLPrinter.addPageEpilog(buffer);
		}
		return new DocumentationBrowserInformationControlInput(previousInput, element, buffer.toString(),
				leadingImageWidth, hoverRegion);
	}
	return null;
}