# QWebView Class Reference
## [[QtWebKit](index.htm) module]
该QWebView类提供了用于查看和编辑网页文件的小工具。[More...](#details)
继承[QWidget](qwidget.html)。
### Methods
* `__init__ (self, QWidget parent = None)`
* `back (self)`
* `changeEvent (self, QEvent)`
* `contextMenuEvent (self, QContextMenuEvent)`
* `QWebView createWindow (self, QWebPage.WebWindowType type)`
* `dragEnterEvent (self, QDragEnterEvent)`
* `dragLeaveEvent (self, QDragLeaveEvent)`
* `dragMoveEvent (self, QDragMoveEvent)`
* `dropEvent (self, QDropEvent)`
* `bool event (self, QEvent)`
* `bool findText (self, QString subString, QWebPage.FindFlags options = 0)`
* `focusInEvent (self, QFocusEvent)`
* `bool focusNextPrevChild (self, bool next)`
* `focusOutEvent (self, QFocusEvent)`
* `forward (self)`
* `bool hasSelection (self)`
* `QWebHistory history (self)`
* `QIcon icon (self)`
* `inputMethodEvent (self, QInputMethodEvent)`
* `QVariant inputMethodQuery (self, Qt.InputMethodQuery property)`
* `bool isModified (self)`
* `keyPressEvent (self, QKeyEvent)`
* `keyReleaseEvent (self, QKeyEvent)`
* `load (self, QUrl url)`
* `load (self, QNetworkRequest request, QNetworkAccessManager.Operation operation = QNetworkAccessManager.GetOperation, QByteArray body = QByteArray())`
* `mouseDoubleClickEvent (self, QMouseEvent)`
* `mouseMoveEvent (self, QMouseEvent)`
* `mousePressEvent (self, QMouseEvent)`
* `mouseReleaseEvent (self, QMouseEvent)`
* `QWebPage page (self)`
* `QAction pageAction (self, QWebPage.WebAction action)`
* `paintEvent (self, QPaintEvent ev)`
* `print (self, QPrinter printer)`
* `print_ (self, QPrinter printer)`
* `reload (self)`
* `QPainter.RenderHints renderHints (self)`
* `resizeEvent (self, QResizeEvent e)`
* `QString selectedHtml (self)`
* `QString selectedText (self)`
* `setContent (self, QByteArray data, QString mimeType = QString(), QUrl baseUrl = QUrl())`
* `setHtml (self, QString html, QUrl baseUrl = QUrl())`
* `setPage (self, QWebPage page)`
* `setRenderHint (self, QPainter.RenderHint hint, bool enabled = True)`
* `setRenderHints (self, QPainter.RenderHints hints)`
* `setTextSizeMultiplier (self, float factor)`
* `QWebSettings settings (self)`
* `setUrl (self, QUrl url)`
* `setZoomFactor (self, float factor)`
* `QSize sizeHint (self)`
* `stop (self)`
* `float textSizeMultiplier (self)`
* `QString title (self)`
* `triggerPageAction (self, QWebPage.WebAction action, bool checked = False)`
* `QUrl url (self)`
* `wheelEvent (self, QWheelEvent)`
* `float zoomFactor (self)`
### Qt Signals
* `void iconChanged ()`
* `void linkClicked (const QUrl&)`
* `void loadFinished (bool)`
* `void loadProgress (int)`
* `void loadStarted ()`
* `void selectionChanged ()`
* `void statusBarMessage (const QString&)`
* `void titleChanged (const QString&)`
* `void urlChanged (const QUrl&)`
* * *
## Detailed Description
该QWebView类提供了用于查看和编辑网页文件的小工具。
QWebView是其中的主要组成部件[QtWebKit](index.htm)网页浏览模块。它可以用在各种应用中显示从因特网web内容住。
一个网站可以被加载到QWebView与[load](qwebview.html#load)()函数。像所有的Qt部件,该[show](qwidget.html#show)()函数必须以显示QWebView被调用。下面的代码段说明了这一点:
```
QWebView *view = new QWebView(parent);
view->load([QUrl](qurl.html)("http://qt-project.org"));
view->show();
```
另外,[setUrl](qwebview.html#url-prop)()也可以被用于加载一个网站。如果您有HTML内容一应俱全,您可以使用[setHtml](qwebview.html#setHtml)( )来代替。
该[loadStarted](qwebview.html#loadStarted)当视图开始加载( )信号被发射。该[loadProgress](qwebview.html#loadProgress)()信号,另一方面,是每当在网络视图中的一个元素完成加载,如嵌入图像,脚本等发出最后,该[loadFinished](qwebview.html#loadFinished)( )信号,当视图已经完全加载发出。它的参数 - 无论是`true` or `false` - 表示加载成功或失败。
该[page](qwebview.html#page)( )函数返回一个指向该网页的对象。看[Elements of QWebView](#elements-of-qwebview)对于如何网页是有关意见之理由。修改你的web视图的设置,您可以访问[QWebSettings](qwebsettings.html)与对象[settings](qwebview.html#settings)()函数。同[QWebSettings](qwebsettings.html),你可以更改默认字体,启用或禁用功能,如JavaScript和插件。
一个HTML文件的标题可以用被访问[title](qwebview.html#title-prop)()属性。此外,网站也可以使用指定一个图标,它可被访问的[icon](qwebview.html#icon-prop)()属性。如果标题或图标的变化,相应的[titleChanged](qwebview.html#titleChanged)()和[iconChanged](qwebview.html#iconChanged)()信号将被发射。该[textSizeMultiplier](qwebview.html#textSizeMultiplier)( )属性可用于改变在网页视图中显示的文本的整体规模。
如果你需要一个自定义上下文菜单,你可以通过重新实现实现它[contextMenuEvent()](qwidget.html#contextMenuEvent)并填充你的[QMenu](qmenu.html)从获得的操作[pageAction](qwebview.html#pageAction)( ) 。更多的功能,例如重新加载视图,选定的文本复制到剪贴板,或者粘贴到视图,也封装内[QAction](qaction.html)通过返回的对象[pageAction](qwebview.html#pageAction)( ) 。这些操作可以通过编程方式触发[triggerPageAction](qwebview.html#triggerPageAction)( ) 。可选地,操作可以被添加到工具栏或直接的菜单。 QWebView维护操作返回的状态,但允许的动作特性,例如修改[text](qaction.html#text-prop) or [icon](qaction.html#icon-prop)。
一个QWebView可以打印到[QPrinter](qprinter.html)使用[print_](qwebview.html#print)()函数。这个功能被标记为一个时隙,并且可以方便地连接到[QPrintPreviewDialog](qprintpreviewdialog.html)的[paintRequested()](qprintpreviewdialog.html#paintRequested)信号。
如果您想提供的网站,允许用户打开新的窗口,如弹出窗口的支持,你可以继承QWebView和重新实现[createWindow](qwebview.html#createWindow)()函数。
### Elements of QWebView
QWebView包含其他对象,如[QWebFrame](qwebframe.html)和[QWebPage](qwebpage.html)。下面的流程图显示了这些元素之间的关系。
![](https://img.kancloud.cn/8f/7d/8f7d17381ebe0f9cdb89d9a4a0ac276e_516x291.png)
**Note:**它可以使用[QWebPage](qwebpage.html)和[QWebFrame](qwebframe.html),不使用QWebView ,如果你不要求[QWidget](qwidget.html)属性。尽管如此,[QtWebKit](index.htm)取决于[QtGui](index.htm),所以你应该使用一个[QApplication](qapplication.html)而不是[QCoreApplication](qcoreapplication.html)。
* * *
## Method Documentation
```
QWebView.__init__ (self, QWidget parent = None)
```
该_parent_的说法,如果不是没有,原因_self_通过Qt的,而不是PyQt的拥有。
构造一个空[QWebView](qwebview.html)与父_parent_。
**See also** [load](qwebview.html#load)( ) 。
```
QWebView.back (self)
```
这种方法也是一个Qt槽与C + +的签名`void back()`。
便利插槽加载以前的文档中通过导航链接建立文件清单。什么都不做,如果没有以前的文档。
它相当于
```
view->page()->triggerPageAction([QWebPage](qwebpage.html).GoBack);
```
**See also** [forward](qwebview.html#forward)()和[pageAction](qwebview.html#pageAction)( ) 。
```
QWebView.changeEvent (self, QEvent)
```
从重新实现[QWidget.changeEvent](qwidget.html#changeEvent)( ) 。
```
QWebView.contextMenuEvent (self, QContextMenuEvent)
```
从重新实现[QWidget.contextMenuEvent](qwidget.html#contextMenuEvent)( ) 。
```
QWebView QWebView.createWindow (self, QWebPage.WebWindowType type)
```
[](qwebview.html)
[这个功能是从CreateWindow的调用(相关的)方法](qwebview.html)[QWebPage](qwebpage.html)中,每当页想要创建的给定一个新的窗口_type_。这可能是一个JavaScript请求,在新窗口中打开的文档的结果,例如, 。
**Note:**如果相关的页面CreateWindow的( )方法被重新实现,这种方法不叫,除非重新实现显式地这样做。
**Note:**在该情况下,当窗口的创建是由JavaScript的触发,除了重新实现此方法的应用程序还必须设置的JavaScriptCanOpenWindows属性[QWebSettings](qwebsettings.html)为True,以便它被调用。
**See also** [QWebPage.createWindow](qwebpage.html#createWindow)()和[QWebPage.acceptNavigationRequest](qwebpage.html#acceptNavigationRequest)( ) 。
```
QWebView.dragEnterEvent (self, QDragEnterEvent)
```
从重新实现[QWidget.dragEnterEvent](qwidget.html#dragEnterEvent)( ) 。
```
QWebView.dragLeaveEvent (self, QDragLeaveEvent)
```
从重新实现[QWidget.dragLeaveEvent](qwidget.html#dragLeaveEvent)( ) 。
```
QWebView.dragMoveEvent (self, QDragMoveEvent)
```
从重新实现[QWidget.dragMoveEvent](qwidget.html#dragMoveEvent)( ) 。
```
QWebView.dropEvent (self, QDropEvent)
```
从重新实现[QWidget.dropEvent](qwidget.html#dropEvent)( ) 。
```
bool QWebView.event (self, QEvent)
```
从重新实现[QObject.event](qobject.html#event)( ) 。
```
bool QWebView.findText (self, QString subString, QWebPage.FindFlags options = 0)
```
查找指定的字符串,_subString_在该页面中,使用给定的_options_。
如果HighlightAllOccurrences标志传递,函数将突出存在于页面中的所有事件。所有后续调用将延长的亮点,而不是取代它,以出现新的字符串。
如果HighlightAllOccurrences标志不通过,该函数将选择的发生,所有后续调用将取代目前出现的下一个。
要清除选择,只传递一个空字符串。
返回True如果_subString_结果发现,否则返回False 。
**See also** [selectedText](qwebview.html#selectedText-prop)()和[selectionChanged](qwebview.html#selectionChanged)( ) 。
```
QWebView.focusInEvent (self, QFocusEvent)
```
从重新实现[QWidget.focusInEvent](qwidget.html#focusInEvent)( ) 。
```
bool QWebView.focusNextPrevChild (self, bool next)
```
从重新实现[QWidget.focusNextPrevChild](qwidget.html#focusNextPrevChild)( ) 。
```
QWebView.focusOutEvent (self, QFocusEvent)
```
从重新实现[QWidget.focusOutEvent](qwidget.html#focusOutEvent)( ) 。
```
QWebView.forward (self)
```
这种方法也是一个Qt槽与C + +的签名`void forward()`。
便利插槽,加载下一个文档中通过导航链接建立文件清单。什么都不做,如果没有下一个文件。
它相当于
```
view->page()->triggerPageAction([QWebPage](qwebpage.html).GoForward);
```
**See also** [back](qwebview.html#back)()和[pageAction](qwebview.html#pageAction)( ) 。
```
bool QWebView.hasSelection (self)
```
```
QWebHistory QWebView.history (self)
```
[
返回一个指针,指向的导航网页视图的历史。
它相当于
```
view->page()->history();
```
](qwebhistory.html)
```
QIcon QWebView.icon (self)
```
[
```
QWebView.inputMethodEvent (self, QInputMethodEvent)
```
](qicon.html)
[从重新实现](qicon.html)[QWidget.inputMethodEvent](qwidget.html#inputMethodEvent)( ) 。
```
QVariant QWebView.inputMethodQuery (self, Qt.InputMethodQuery property)
```
从重新实现[QWidget.inputMethodQuery](qwidget.html#inputMethodQuery)( ) 。
```
bool QWebView.isModified (self)
```
```
QWebView.keyPressEvent (self, QKeyEvent)
```
从重新实现[QWidget.keyPressEvent](qwidget.html#keyPressEvent)( ) 。
```
QWebView.keyReleaseEvent (self, QKeyEvent)
```
从重新实现[QWidget.keyReleaseEvent](qwidget.html#keyReleaseEvent)( ) 。
```
QWebView.load (self, QUrl url)
```
指定的负载_url_并显示它。
**Note:**该视图保持不变,直到足够的数据已经到达,以显示新_url_。
**See also** [setUrl](qwebview.html#url-prop)( )[url](qwebview.html#url-prop)( )[urlChanged](qwebview.html#urlChanged)()和[QUrl.fromUserInput](qurl.html#fromUserInput)( ) 。
```
QWebView.load (self, QNetworkRequest request, QNetworkAccessManager.Operation operation = QNetworkAccessManager.GetOperation, QByteArray body = QByteArray())
```
加载一个网络请求,_request_使用中规定的方法_operation_。
_body_是可选的,并且仅用于POST操作。
**Note:**该视图保持不变,直到足够的数据已经到达,以显示新的URL。
**See also** [url](qwebview.html#url-prop)()和[urlChanged](qwebview.html#urlChanged)( ) 。
```
QWebView.mouseDoubleClickEvent (self, QMouseEvent)
```
从重新实现[QWidget.mouseDoubleClickEvent](qwidget.html#mouseDoubleClickEvent)( ) 。
```
QWebView.mouseMoveEvent (self, QMouseEvent)
```
从重新实现[QWidget.mouseMoveEvent](qwidget.html#mouseMoveEvent)( ) 。
```
QWebView.mousePressEvent (self, QMouseEvent)
```
从重新实现[QWidget.mousePressEvent](qwidget.html#mousePressEvent)( ) 。
```
QWebView.mouseReleaseEvent (self, QMouseEvent)
```
从重新实现[QWidget.mouseReleaseEvent](qwidget.html#mouseReleaseEvent)( ) 。
```
QWebPage QWebView.page (self)
```
[
返回一个指针,指向底层的网页。
](qwebpage.html)
[**See also**](qwebpage.html) [setPage](qwebview.html#setPage)( ) 。
```
QAction QWebView.pageAction (self, QWebPage.WebAction action)
```
[](qaction.html)
[返回一个指针,指向一个](qaction.html)[QAction](qaction.html)封装指定网络行动_action_。
```
QWebView.paintEvent (self, QPaintEvent ev)
```
从重新实现[QWidget.paintEvent](qwidget.html#paintEvent)( ) 。
```
QWebView.print (self, QPrinter printer)
```
这种方法也是一个Qt槽与C + +的签名`void print(QPrinter *) const`。
打印主框架给定的_printer_。
**See also** [QWebFrame.print](qwebframe.html#print)()和[QPrintPreviewDialog](qprintpreviewdialog.html)。
```
QWebView.print_ (self, QPrinter printer)
```
这种方法也是一个Qt槽与C + +的签名`void print(QPrinter *) const`。
打印主框架给定的_printer_。
**See also** [QWebFrame.print](qwebframe.html#print)()和[QPrintPreviewDialog](qprintpreviewdialog.html)。
```
QWebView.reload (self)
```
这种方法也是一个Qt槽与C + +的签名`void reload()`。
重新加载当前文档。
**See also** [stop](qwebview.html#stop)( )[pageAction](qwebview.html#pageAction)()和[loadStarted](qwebview.html#loadStarted)( ) 。
```
QPainter.RenderHints QWebView.renderHints (self)
```
[
```
QWebView.resizeEvent (self, QResizeEvent e)
```
](index.htm)
[从重新实现](index.htm)[QWidget.resizeEvent](qwidget.html#resizeEvent)( ) 。
```
QString QWebView.selectedHtml (self)
```
```
QString QWebView.selectedText (self)
```
```
QWebView.setContent (self, QByteArray data, QString mimeType = QString(), QUrl baseUrl = QUrl())
```
设置Web视图中的内容到指定的内容_data_。如果_mimeType_参数为空它是目前假设内容是HTML,但在未来的版本中,我们可能会引入自动检测。
在内容引用的外部对象的位置相对_baseUrl_。
该_data_立即加载;外部对象异步加载。
**See also** [load](qwebview.html#load)( )[setHtml](qwebview.html#setHtml)()和[QWebFrame.toHtml](qwebframe.html#toHtml)( ) 。
```
QWebView.setHtml (self, QString html, QUrl baseUrl = QUrl())
```
设置Web视图的内容的指定_html_。
外部对象,如样式表或HTML文档中引用的图片的位置相对于_baseUrl_。
该_html_立即加载;外部对象异步加载。
使用此方法时, WebKit的假定外部资源,例如JavaScript程序或样式表,除非另有规定被编码为UTF -8 。例如,外部脚本的编码可以通过HTML脚本标记的charset属性来指定。备选地,编码也可以由Web服务器指定。
这相当于一个方便的功能,使用setContent ( HTML , “为text / html ” , baseURL即可) 。
**Warning:**此功能仅用于HTML ,为其他MIME类型(即XHTML , SVG )[setContent](qwebview.html#setContent)( )应该使用。
**See also** [load](qwebview.html#load)( )[setContent](qwebview.html#setContent)( )[QWebFrame.toHtml](qwebframe.html#toHtml)()和[QWebFrame.setContent](qwebframe.html#setContent)( ) 。
```
QWebView.setPage (self, QWebPage page)
```
品牌_page_Web视图的新网页。
父[QObject](qobject.html)该页面提供的仍然是对象的所有者。如果当前页面是Web视图的孩子,它会被删除。
**See also** [page](qwebview.html#page)( ) 。
```
QWebView.setRenderHint (self, QPainter.RenderHint hint, bool enabled = True)
```
If _enabled_诚然,启用指定的渲染_hint_否则禁用它。
此功能被引入Qt的4.6 。
**See also** [renderHints](qwebview.html#renderHints-prop)和[QPainter.renderHints](qpainter.html#renderHints)( ) 。
```
QWebView.setRenderHints (self, QPainter.RenderHints hints)
```
```
QWebView.setTextSizeMultiplier (self, float factor)
```
设置用于缩放网页中的文字乘数的值_factor_规定。
**See also** [textSizeMultiplier](qwebview.html#textSizeMultiplier)( ) 。
```
QWebSettings QWebView.settings (self)
```
[
返回一个指针,指向视图/页面设置特定对象。
它相当于
```
view->page()->settings();
```
](qwebsettings.html)
[**See also**](qwebsettings.html) [QWebSettings.globalSettings](qwebsettings.html#globalSettings)( ) 。
```
QWebView.setUrl (self, QUrl url)
```
```
QWebView.setZoomFactor (self, float factor)
```
```
QSize QWebView.sizeHint (self)
```
[](qsize.html)
[从重新实现](qsize.html)[QWidget.sizeHint](qwidget.html#sizeHint-prop)( ) 。
```
QWebView.stop (self)
```
这种方法也是一个Qt槽与C + +的签名`void stop()`。
便利插槽,停止加载该文件。
它相当于
```
view->page()->triggerPageAction([QWebPage](qwebpage.html).Stop);
```
**See also** [reload](qwebview.html#reload)( )[pageAction](qwebview.html#pageAction)()和[loadFinished](qwebview.html#loadFinished)( ) 。
```
float QWebView.textSizeMultiplier (self)
```
返回用于扩展在Web页面中的文本乘数的值。
**See also** [setTextSizeMultiplier](qwebview.html#setTextSizeMultiplier)( ) 。
```
QString QWebView.title (self)
```
```
QWebView.triggerPageAction (self, QWebPage.WebAction action, bool checked = False)
```
触发指定的_action_。如果是指定了辨认的动作_checked_假定状态。
下面的例子将触发复制动作,所以副本中的任何选定的文本复制到剪贴板。
```
view->triggerAction([QWebPage](qwebpage.html).Copy);
```
**See also** [pageAction](qwebview.html#pageAction)( ) 。
```
QUrl QWebView.url (self)
```
[
```
QWebView.wheelEvent (self, QWheelEvent)
```
](qurl.html)
[从重新实现](qurl.html)[QWidget.wheelEvent](qwidget.html#wheelEvent)( ) 。
```
float QWebView.zoomFactor (self)
```
* * *
## Qt Signal Documentation
```
void iconChanged ()
```
这是该信号的默认超载。
这个信号时页面的图标被加载或改变被发射。
为了让图标加载,则需要使用设置一个图标数据库路径[QWebSettings.setIconDatabasePath](qwebsettings.html#setIconDatabasePath)( ) 。
**See also** [icon](qwebview.html#icon-prop)()和[QWebSettings.setIconDatabasePath](qwebsettings.html#setIconDatabasePath)( ) 。
```
void linkClicked (const QUrl&)
```
这是该信号的默认超载。
每当用户点击一个链接这个信号被发射以及页面的linkDelegationPolicy属性设置为处理委讬给指定的链接_url_。
**See also** [QWebPage.linkDelegationPolicy](qwebpage.html#linkDelegationPolicy-prop)( ) 。
```
void loadFinished (bool)
```
这是该信号的默认超载。
当页面的加载完成时,这个信号被发射。_ok_将指示负载是否成功,或发生任何错误。
**See also** [loadStarted](qwebview.html#loadStarted)( ) 。
```
void loadProgress (int)
```
这是该信号的默认超载。
每个网页中的元素完成加载和整体加载进度前进时,这个信号被发射。
这个信号可以跟踪所有子帧的进展。
电流值是由所提供_progress_和秤从0到100 ,这是默认范围[QProgressBar](qprogressbar.html)。
**See also** [loadStarted](qwebview.html#loadStarted)()和[loadFinished](qwebview.html#loadFinished)( ) 。
```
void loadStarted ()
```
这是该信号的默认超载。
当开始页面的新负载,这个信号被发射。
**See also** [loadProgress](qwebview.html#loadProgress)()和[loadFinished](qwebview.html#loadFinished)( ) 。
```
void selectionChanged ()
```
这是该信号的默认超载。
这个信号被发射时的选择改变。
**See also** [selectedText](qwebview.html#selectedText-prop)( ) 。
```
void statusBarMessage (const QString&)
```
这是该信号的默认超载。
这个信号被发射时,状态栏_text_由页改变。
```
void titleChanged (const QString&)
```
这是该信号的默认超载。
这个信号被发射时的_title_的主框架的改变。
**See also** [title](qwebview.html#title-prop)( ) 。
```
void urlChanged (const QUrl&)
```
这是该信号的默认超载。
这个信号被发射时的_url_的观点变化。
**See also** [url](qwebview.html#url-prop)()和[load](qwebview.html#load)( ) 。
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