QWebInspector Class
The QWebInspector class allows the placement and control of a QWebPage's inspector. The inspector can display a page's hierarchy, its loading statistics and the current state of its individual elements. It is mostly used by web developers. More...
| Header: | #include <QWebInspector> |
| qmake: | QT += webkitwidgets |
| Since: | Qt 4.6 |
| Inherits: |
Public Functions
| QWebInspector(QWidget * parent = Q_NULLPTR) | |
| ~QWebInspector() | |
| bool | event(QEvent * ev) |
| QWebPage * | page() const |
| void | setPage(QWebPage * page) |
| QSize | sizeHint() const |
Protected Functions
| void | closeEvent(QCloseEvent * event) |
| void | hideEvent(QHideEvent * event) |
| void | resizeEvent(QResizeEvent * event) |
| void | showEvent(QShowEvent * event) |
Detailed Description
The QWebInspector class allows the placement and control of a QWebPage's inspector. The inspector can display a page's hierarchy, its loading statistics and the current state of its individual elements. It is mostly used by web developers.
The QWebPage to be inspected must be specified using the setPage() method.
A typical use of QWebInspector follows:
// ... QWebPage *page = new QWebPage; // ... QWebInspector *inspector = new QWebInspector; inspector->setPage(page);
A QWebInspector can be made visible either programmatically using setVisible(), or by the user through the attached QWebPage's context menu.
Note: A QWebInspector will display a blank widget if either:
- page() is null
- QWebSettings::DeveloperExtrasEnabled is false
Resources
This class acts mostly as a container and a controller for the inspector. Most of the resources needed by the inspector are owned by the associated QWebPage and are allocated the first time that:
- an element is inspected
- the QWebInspector is shown.
Inspector configuration persistence
The inspector allows the user to configure some options through its user interface (e.g. the resource tracking "Always enable" option). The inspector UI is itself a web page and is using HTML local storage to persist those settings. Since the internal QWebPage used by the inspector isn't exposed in the API, the only way to enable those settings to be persisted is currently to enable local storage globally through QWebSettings::globalSettings().
See also QWebSettings::localStoragePath() and QWebSettings::LocalStorageEnabled.
Member Function Documentation
QWebInspector::QWebInspector(QWidget * parent = Q_NULLPTR)
Constructs an unbound QWebInspector with parent as its parent.
QWebInspector::~QWebInspector()
Destroys the inspector.
[protected] void QWebInspector::closeEvent(QCloseEvent * event)
bool QWebInspector::event(QEvent * ev)
[protected] void QWebInspector::hideEvent(QHideEvent * event)
QWebPage * QWebInspector::page() const
Returns the inspected QWebPage. If no web page is currently associated, a null pointer is returned.
See also setPage().
[protected] void QWebInspector::resizeEvent(QResizeEvent * event)
void QWebInspector::setPage(QWebPage * page)
Bind this inspector to the QWebPage to be inspected.
Notes:
- There can only be one QWebInspector associated with a QWebPage and vice versa.
- Calling this method with a null page will break the current association, if any.
- If page is already associated to another QWebInspector, the association will be replaced and the previous QWebInspector will become unbound
See also page().