diff options
Diffstat (limited to 'src/webenginewidgets/doc/src/qwebenginepage_lgpl.qdoc')
| -rw-r--r-- | src/webenginewidgets/doc/src/qwebenginepage_lgpl.qdoc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/webenginewidgets/doc/src/qwebenginepage_lgpl.qdoc b/src/webenginewidgets/doc/src/qwebenginepage_lgpl.qdoc index d012c678c..035b45a6d 100644 --- a/src/webenginewidgets/doc/src/qwebenginepage_lgpl.qdoc +++ b/src/webenginewidgets/doc/src/qwebenginepage_lgpl.qdoc @@ -485,6 +485,10 @@ The \a resultCallback must take a boolean parameter. It will be called with a value of \c true if the \a subString was found; otherwise the callback value will be \c false. + \warning We guarantee that the callback (\a resultCallback) is always called, but it might be done + during page destruction. When QWebEnginePage is deleted, the callback is triggered with an invalid + value and it is not safe to use the corresponding QWebEnginePage or QWebEngineView instance inside it. + For example: \snippet qtwebengine_qwebenginepage_snippet.cpp 0 */ @@ -613,6 +617,10 @@ \note \a resultCallback can be any of a function pointer, a functor or a lambda, and it is expected to take a QString parameter. + \warning We guarantee that the callback (\a resultCallback) is always called, but it might be done + during page destruction. When QWebEnginePage is deleted, the callback is triggered with an invalid + value and it is not safe to use the corresponding QWebEnginePage or QWebEngineView instance inside it. + \sa setHtml(), toPlainText() */ @@ -624,6 +632,10 @@ \note \a resultCallback can be any of a function pointer, a functor or a lambda, and it is expected to take a QString parameter. + \warning We guarantee that the callback (\a resultCallback) is always called, but it might be done + during page destruction. When QWebEnginePage is deleted, the callback is triggered with an invalid + value and it is not safe to use the corresponding QWebEnginePage or QWebEngineView instance inside it. + \sa toHtml() */ @@ -743,6 +755,10 @@ \warning Do not execute lengthy routines in the callback function, because it might block the rendering of the web engine page. + \warning We guarantee that the callback (\a resultCallback) is always called, but it might be done + during page destruction. When QWebEnginePage is deleted, the callback is triggered with an invalid + value and it is not safe to use the corresponding QWebEnginePage or QWebEngineView instance inside it. + See scripts() for an alternative API to inject scripts. \sa QWebEngineScript::ScriptWorldId |