QQmlPreviewFileEngineHandler Class Reference

#include <qqmlpreviewfileengine.h>

Inheritance diagram for QQmlPreviewFileEngineHandler:

Collaboration diagram for QQmlPreviewFileEngineHandler:

Public Member Functions
	QQmlPreviewFileEngineHandler (QQmlPreviewFileLoader *loader)
std::unique_ptr< QAbstractFileEngine >	create (const QString &fileName) const override
	If this file handler can handle fileName, this method creates a file engine and returns it wrapped in a std::unique_ptr; otherwise returns nullptr.
Public Member Functions inherited from QAbstractFileEngineHandler
	QAbstractFileEngineHandler ()
	Constructs a file handler and registers it with Qt.
virtual	~QAbstractFileEngineHandler ()
	Destroys the file handler.

Detailed Description

Definition at line 91 of file qqmlpreviewfileengine.h.

Constructor & Destructor Documentation

QQmlPreviewFileEngineHandler()

QQmlPreviewFileEngineHandler::QQmlPreviewFileEngineHandler

(

QQmlPreviewFileLoader *

loader

)

Definition at line 386 of file qqmlpreviewfileengine.cpp.

Member Function Documentation

create()

std::unique_ptr< QAbstractFileEngine > QQmlPreviewFileEngineHandler::create ( const QString & fileName ) const

overridevirtual

If this file handler can handle fileName, this method creates a file engine and returns it wrapped in a std::unique_ptr; otherwise returns nullptr.

Example:

std::unique_ptr<QAbstractFileEngine> ZipEngineHandler::create(const QString &fileName) const
{
    // ZipEngineHandler returns a ZipEngine for all .zip files
    if (fileName.toLower().endsWith(".zip"_L1))
        return std::make_unique<ZipEngine>(fileName);
    else
        return {};
}

See also

QAbstractFileEngine::create()

Implements QAbstractFileEngineHandler.

Definition at line 391 of file qqmlpreviewfileengine.cpp.

References absolutePath(), QString::chop(), QPointer< T >::data(), QString::endsWith(), fileName, QQmlPreviewFileLoader::isBlacklisted(), QString::isEmpty(), isRootPath(), and QString::startsWith().

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The documentation for this class was generated from the following files:

• qtdeclarative/src/plugins/qmltooling/qmldbg_preview/qqmlpreviewfileengine.h (18a6e9277b10f7feb47fc7384761e7f724478227)
• qtdeclarative/src/plugins/qmltooling/qmldbg_preview/qqmlpreviewfileengine.cpp (7ff6ebb7bdf0f8ceaad50948ceda50e728b5b9cd)