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Diffstat (limited to 'doc/src/declarative/globalobject.qdoc')
| -rw-r--r-- | doc/src/declarative/globalobject.qdoc | 91 |
1 files changed, 84 insertions, 7 deletions
diff --git a/doc/src/declarative/globalobject.qdoc b/doc/src/declarative/globalobject.qdoc index 97f5d91..6709ab4 100644 --- a/doc/src/declarative/globalobject.qdoc +++ b/doc/src/declarative/globalobject.qdoc @@ -190,10 +190,10 @@ This function attempts to open the specified \c target url in an external applic This function returns a hex string of the md5 hash of \c data. \section3 Qt.btoa(data) -This function returns a base64 encoding of \c data. +Binary to ASCII - this function returns a base64 encoding of \c data. \section3 Qt.atob(data) -This function returns a base64 decoding of \c data. +ASCII to binary - this function returns a base64 decoding of \c data. \section3 Qt.quit() This function causes the QML engine to emit the quit signal, which in @@ -258,6 +258,11 @@ of their use. } \endcode + The methods and properties of the Component element are defined in its own + page, but when using it dynamically only two methods are usually used. + Component.createObject() returns the created object or null if there is an error. + If there is an error, Component.errorsString() describes what the error was. + If you want to just create an arbitrary string of QML, instead of loading a QML file, consider the createQmlObject() function. @@ -277,7 +282,9 @@ of their use. similarly to eval, but for creating QML elements. Returns the created object, or null if there is an error. In the case of an - error, details of the error are output using qWarning(). + error, a QtScript Error object is thrown. This object has the additional property, + qmlErrors, which is an array of all the errors encountered when trying to execute the + QML. Each object in the array has the members: lineNumber, columnNumber, fileName and message. Note that this function returns immediately, and therefore may not work if the QML loads new components. If you are trying to load a new component, @@ -286,11 +293,81 @@ of their use. been loaded, and so it is safe to use createQmlObject to load built-in components. -\section1 Asynchronous JavaScript and XML -QML script supports the XMLHttpRequest object, which can be used to asynchronously obtain data from over a network. -\section2 XMLHttpRequest() -In QML you can construct an XMLHttpRequest object just like in a web browser! TODO: Real documentation for this object. +\section1 XMLHttpRequest + +\target XMLHttpRequest + +QML script supports the XMLHttpRequest object, which can be used to asynchronously obtain +data from over a network. + +The XMLHttpRequest API implements the same \l {http://www.w3.org/TR/XMLHttpRequest/}{W3C standard} +as many popular web browsers with following exceptions: +\list +\i QML's XMLHttpRequest does not enforce the same origin policty. +\i QML's XMLHttpRequest does not support \e synchronous requests. +\endlist + +Additionally, the \c responseXML XML DOM tree currently supported by QML is a reduced subset +of the \l {http://www.w3.org/TR/DOM-Level-3-Core/}{DOM Level 3 Core} API supported in a web +browser. The following objects and properties are supported by the QML implementation: +\table +\header +\o \bold {Node} +\o \bold {Document} +\o \bold {Element} +\o \bold {Attr} +\o \bold {CharacterData} +\o \bold {Text} + +\row +\o +\list +\o nodeName +\o nodeValue +\o nodeType +\o parentNode +\o childNodes +\o firstChild +\o lastChild +\o previousSibling +\o nextSibling +\o attribtes +\endlist + +\o +\list +\o xmlVersion +\o xmlEncoding +\o xmlStandalone +\o documentElement +\endlist + +\o +\list +\o tagName +\endlist + +\o +\list +\o name +\o value +\o ownerElement +\endlist + +\o +\list +\o data +\o length +\endlist + +\o +\list +\o isElementContentWhitespace +\o wholeText +\endlist + +\endtable \section1 Offline Storage API |