Aspose::Words::Saving::HtmlFixedSaveOptions::get_ResourcesFolderAlias method

HtmlFixedSaveOptions::get_ResourcesFolderAlias method

Specifies the name of the folder used to construct image URIs written into an Html document. Default is null.

System::String Aspose::Words::Saving::HtmlFixedSaveOptions::get_ResourcesFolderAlias() const

Remarks

When you save a Document in Html format, Aspose.Words needs to save all images embedded in the document as standalone files. ResourcesFolder allows you to specify where the images will be saved and ResourcesFolderAlias allows to specify how the image URIs will be constructed.

Examples

Shows how to use a callback to print the URIs of external resources created while converting a document to HTML.

void HtmlFixedResourceFolder()
{
    auto doc = MakeObject<Document>(MyDir + u"Rendering.docx");

    auto callback = MakeObject<ExHtmlFixedSaveOptions::ResourceUriPrinter>();

    auto options = MakeObject<HtmlFixedSaveOptions>();
    options->set_SaveFormat(SaveFormat::HtmlFixed);
    options->set_ExportEmbeddedImages(false);
    options->set_ResourcesFolder(ArtifactsDir + u"HtmlFixedResourceFolder");
    options->set_ResourcesFolderAlias(ArtifactsDir + u"HtmlFixedResourceFolderAlias");
    options->set_ShowPageBorder(false);
    options->set_ResourceSavingCallback(callback);

    // A folder specified by ResourcesFolderAlias will contain the resources instead of ResourcesFolder.
    // We must ensure the folder exists before the streams can put their resources into it.
    System::IO::Directory::CreateDirectory_(options->get_ResourcesFolderAlias());

    doc->Save(ArtifactsDir + u"HtmlFixedSaveOptions.HtmlFixedResourceFolder.html", options);

    std::cout << callback->GetText() << std::endl;

    ArrayPtr<String> resourceFiles = System::IO::Directory::GetFiles(ArtifactsDir + u"HtmlFixedResourceFolderAlias");

    ASSERT_FALSE(System::IO::Directory::Exists(ArtifactsDir + u"HtmlFixedResourceFolder"));
    std::function<bool(String f)> isImageOrCss = [](String f)
    {
        return f.EndsWith(u".jpeg") || f.EndsWith(u".png") || f.EndsWith(u".css");
    };

    ASSERT_EQ(6, resourceFiles->LINQ_Count(isImageOrCss));
}

class ResourceUriPrinter : public IResourceSavingCallback
{
public:
    String GetText()
    {
        return mText->ToString();
    }

    ResourceUriPrinter() : mSavedResourceCount(0), mText(MakeObject<System::Text::StringBuilder>())
    {
    }

private:
    int mSavedResourceCount;
    SharedPtr<System::Text::StringBuilder> mText;

    void ResourceSaving(SharedPtr<ResourceSavingArgs> args) override
    {
        // If we set a folder alias in the SaveOptions object, we will be able to print it from here.
        mText->AppendLine(String::Format(u"Resource #{0} \"{1}\"", ++mSavedResourceCount, args->get_ResourceFileName()));

        String extension = System::IO::Path::GetExtension(args->get_ResourceFileName());
        if (extension == u".ttf" || extension == u".woff")
        {
            // By default, 'ResourceFileUri' uses system folder for fonts.
            // To avoid problems in other platforms you must explicitly specify the path for the fonts.
            args->set_ResourceFileUri(ArtifactsDir + System::IO::Path::DirectorySeparatorChar + args->get_ResourceFileName());
        }

        mText->AppendLine(String(u"\t") + args->get_ResourceFileUri());

        // If we have specified a folder in the "ResourcesFolderAlias" property,
        // we will also need to redirect each stream to put its resource in that folder.
        args->set_ResourceStream(MakeObject<System::IO::FileStream>(args->get_ResourceFileUri(), System::IO::FileMode::Create));
        args->set_KeepResourceStreamOpen(false);
    }
};

See Also

Aspose::Words::Saving::HtmlFixedSaveOptions::get_ResourcesFolder method Aspose::Words::Saving::HtmlFixedSaveOptions::get_SaveFontFaceCssSeparately method