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<h1 class="title">mainwindow.cpp Example File</h1>
<span class="small-subtitle">webkit/fancybrowser/mainwindow.cpp</span>
<!-- $$$webkit/fancybrowser/mainwindow.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** &quot;Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include &lt;QtGui&gt;</span>
<span class="preprocessor">#include &lt;QtNetwork&gt;</span>
<span class="preprocessor">#include &lt;QtWebKit&gt;</span>
<span class="preprocessor">#include &quot;mainwindow.h&quot;</span>
MainWindow<span class="operator">::</span>MainWindow(<span class="keyword">const</span> <span class="type"><a href="qurl.html">QUrl</a></span><span class="operator">&amp;</span> url)
{
progress <span class="operator">=</span> <span class="number">0</span>;
<span class="type"><a href="qfile.html">QFile</a></span> file;
file<span class="operator">.</span>setFileName(<span class="string">&quot;:/jquery.min.js&quot;</span>);
file<span class="operator">.</span>open(<span class="type"><a href="qiodevice.html">QIODevice</a></span><span class="operator">::</span>ReadOnly);
jQuery <span class="operator">=</span> file<span class="operator">.</span>readAll();
file<span class="operator">.</span>close();
<span class="type"><a href="qnetworkproxyfactory.html">QNetworkProxyFactory</a></span><span class="operator">::</span>setUseSystemConfiguration(<span class="keyword">true</span>);
view <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwebview.html">QWebView</a></span>(<span class="keyword">this</span>);
view<span class="operator">-</span><span class="operator">&gt;</span>load(url);
connect(view<span class="operator">,</span> SIGNAL(loadFinished(<span class="type">bool</span>))<span class="operator">,</span> SLOT(adjustLocation()));
connect(view<span class="operator">,</span> SIGNAL(titleChanged(<span class="type"><a href="qstring.html">QString</a></span>))<span class="operator">,</span> SLOT(adjustTitle()));
connect(view<span class="operator">,</span> SIGNAL(loadProgress(<span class="type">int</span>))<span class="operator">,</span> SLOT(setProgress(<span class="type">int</span>)));
connect(view<span class="operator">,</span> SIGNAL(loadFinished(<span class="type">bool</span>))<span class="operator">,</span> SLOT(finishLoading(<span class="type">bool</span>)));
locationEdit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>(<span class="keyword">this</span>);
locationEdit<span class="operator">-</span><span class="operator">&gt;</span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding<span class="operator">,</span> locationEdit<span class="operator">-</span><span class="operator">&gt;</span>sizePolicy()<span class="operator">.</span>verticalPolicy());
connect(locationEdit<span class="operator">,</span> SIGNAL(returnPressed())<span class="operator">,</span> SLOT(changeLocation()));
<span class="type"><a href="qtoolbar.html">QToolBar</a></span> <span class="operator">*</span>toolBar <span class="operator">=</span> addToolBar(tr(<span class="string">&quot;Navigation&quot;</span>));
toolBar<span class="operator">-</span><span class="operator">&gt;</span>addAction(view<span class="operator">-</span><span class="operator">&gt;</span>pageAction(<span class="type"><a href="qwebpage.html">QWebPage</a></span><span class="operator">::</span>Back));
toolBar<span class="operator">-</span><span class="operator">&gt;</span>addAction(view<span class="operator">-</span><span class="operator">&gt;</span>pageAction(<span class="type"><a href="qwebpage.html">QWebPage</a></span><span class="operator">::</span>Forward));
toolBar<span class="operator">-</span><span class="operator">&gt;</span>addAction(view<span class="operator">-</span><span class="operator">&gt;</span>pageAction(<span class="type"><a href="qwebpage.html">QWebPage</a></span><span class="operator">::</span>Reload));
toolBar<span class="operator">-</span><span class="operator">&gt;</span>addAction(view<span class="operator">-</span><span class="operator">&gt;</span>pageAction(<span class="type"><a href="qwebpage.html">QWebPage</a></span><span class="operator">::</span>Stop));
toolBar<span class="operator">-</span><span class="operator">&gt;</span>addWidget(locationEdit);
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>viewMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addMenu(tr(<span class="string">&quot;&amp;View&quot;</span>));
<span class="type"><a href="qaction.html">QAction</a></span><span class="operator">*</span> viewSourceAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="string">&quot;Page Source&quot;</span><span class="operator">,</span> <span class="keyword">this</span>);
connect(viewSourceAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> SLOT(viewSource()));
viewMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(viewSourceAction);
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>effectMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addMenu(tr(<span class="string">&quot;&amp;Effect&quot;</span>));
effectMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(<span class="string">&quot;Highlight all links&quot;</span><span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(highlightAllLinks()));
rotateAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="keyword">this</span>);
rotateAction<span class="operator">-</span><span class="operator">&gt;</span>setIcon(style()<span class="operator">-</span><span class="operator">&gt;</span>standardIcon(<span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>SP_FileDialogDetailedView));
rotateAction<span class="operator">-</span><span class="operator">&gt;</span>setCheckable(<span class="keyword">true</span>);
rotateAction<span class="operator">-</span><span class="operator">&gt;</span>setText(tr(<span class="string">&quot;Turn images upside down&quot;</span>));
connect(rotateAction<span class="operator">,</span> SIGNAL(toggled(<span class="type">bool</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(rotateImages(<span class="type">bool</span>)));
effectMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(rotateAction);
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>toolsMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addMenu(tr(<span class="string">&quot;&amp;Tools&quot;</span>));
toolsMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;Remove GIF images&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(removeGifImages()));
toolsMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;Remove all inline frames&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(removeInlineFrames()));
toolsMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;Remove all object elements&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(removeObjectElements()));
toolsMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;Remove all embedded elements&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(removeEmbeddedElements()));
setCentralWidget(view);
setUnifiedTitleAndToolBarOnMac(<span class="keyword">true</span>);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>viewSource()
{
<span class="type"><a href="qnetworkaccessmanager.html">QNetworkAccessManager</a></span><span class="operator">*</span> accessManager <span class="operator">=</span> view<span class="operator">-</span><span class="operator">&gt;</span>page()<span class="operator">-</span><span class="operator">&gt;</span>networkAccessManager();
<span class="type"><a href="qnetworkrequest.html">QNetworkRequest</a></span> request(view<span class="operator">-</span><span class="operator">&gt;</span>url());
<span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span><span class="operator">*</span> reply <span class="operator">=</span> accessManager<span class="operator">-</span><span class="operator">&gt;</span>get(request);
connect(reply<span class="operator">,</span> SIGNAL(finished())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(slotSourceDownloaded()));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>slotSourceDownloaded()
{
<span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span><span class="operator">*</span> reply <span class="operator">=</span> qobject_cast<span class="operator">&lt;</span><span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span><span class="operator">*</span><span class="operator">&gt;</span>(<span class="keyword">const_cast</span><span class="operator">&lt;</span><span class="type"><a href="qobject.html">QObject</a></span><span class="operator">*</span><span class="operator">&gt;</span>(sender()));
<span class="type"><a href="qtextedit.html">QTextEdit</a></span><span class="operator">*</span> textEdit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtextedit.html">QTextEdit</a></span>(NULL);
textEdit<span class="operator">-</span><span class="operator">&gt;</span>setAttribute(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WA_DeleteOnClose);
textEdit<span class="operator">-</span><span class="operator">&gt;</span>show();
textEdit<span class="operator">-</span><span class="operator">&gt;</span>setPlainText(reply<span class="operator">-</span><span class="operator">&gt;</span>readAll());
reply<span class="operator">-</span><span class="operator">&gt;</span>deleteLater();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>adjustLocation()
{
locationEdit<span class="operator">-</span><span class="operator">&gt;</span>setText(view<span class="operator">-</span><span class="operator">&gt;</span>url()<span class="operator">.</span>toString());
}
<span class="type">void</span> MainWindow<span class="operator">::</span>changeLocation()
{
<span class="type"><a href="qurl.html">QUrl</a></span> url <span class="operator">=</span> <span class="type"><a href="qurl.html">QUrl</a></span>(locationEdit<span class="operator">-</span><span class="operator">&gt;</span>text());
view<span class="operator">-</span><span class="operator">&gt;</span>load(url);
view<span class="operator">-</span><span class="operator">&gt;</span>setFocus();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>adjustTitle()
{
<span class="keyword">if</span> (progress <span class="operator">&lt;</span><span class="operator">=</span> <span class="number">0</span> <span class="operator">|</span><span class="operator">|</span> progress <span class="operator">&gt;</span><span class="operator">=</span> <span class="number">100</span>)
setWindowTitle(view<span class="operator">-</span><span class="operator">&gt;</span>title());
<span class="keyword">else</span>
setWindowTitle(<span class="type"><a href="qstring.html">QString</a></span>(<span class="string">&quot;%1 (%2%)&quot;</span>)<span class="operator">.</span>arg(view<span class="operator">-</span><span class="operator">&gt;</span>title())<span class="operator">.</span>arg(progress));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>setProgress(<span class="type">int</span> p)
{
progress <span class="operator">=</span> p;
adjustTitle();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>finishLoading(<span class="type">bool</span>)
{
progress <span class="operator">=</span> <span class="number">100</span>;
adjustTitle();
view<span class="operator">-</span><span class="operator">&gt;</span>page()<span class="operator">-</span><span class="operator">&gt;</span>mainFrame()<span class="operator">-</span><span class="operator">&gt;</span>evaluateJavaScript(jQuery);
rotateImages(rotateAction<span class="operator">-</span><span class="operator">&gt;</span>isChecked());
}
<span class="type">void</span> MainWindow<span class="operator">::</span>highlightAllLinks()
{
<span class="type"><a href="qstring.html">QString</a></span> code <span class="operator">=</span> <span class="string">&quot;$('a').each( function () { $(this).css('background-color', 'yellow') } )&quot;</span>;
view<span class="operator">-</span><span class="operator">&gt;</span>page()<span class="operator">-</span><span class="operator">&gt;</span>mainFrame()<span class="operator">-</span><span class="operator">&gt;</span>evaluateJavaScript(code);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>rotateImages(<span class="type">bool</span> invert)
{
<span class="type"><a href="qstring.html">QString</a></span> code;
<span class="keyword">if</span> (invert)
code <span class="operator">=</span> <span class="string">&quot;$('img').each( function () { $(this).css('-webkit-transition', '-webkit-transform 2s'); $(this).css('-webkit-transform', 'rotate(180deg)') } )&quot;</span>;
<span class="keyword">else</span>
code <span class="operator">=</span> <span class="string">&quot;$('img').each( function () { $(this).css('-webkit-transition', '-webkit-transform 2s'); $(this).css('-webkit-transform', 'rotate(0deg)') } )&quot;</span>;
view<span class="operator">-</span><span class="operator">&gt;</span>page()<span class="operator">-</span><span class="operator">&gt;</span>mainFrame()<span class="operator">-</span><span class="operator">&gt;</span>evaluateJavaScript(code);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>removeGifImages()
{
<span class="type"><a href="qstring.html">QString</a></span> code <span class="operator">=</span> <span class="string">&quot;$('[src*=gif]').remove()&quot;</span>;
view<span class="operator">-</span><span class="operator">&gt;</span>page()<span class="operator">-</span><span class="operator">&gt;</span>mainFrame()<span class="operator">-</span><span class="operator">&gt;</span>evaluateJavaScript(code);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>removeInlineFrames()
{
<span class="type"><a href="qstring.html">QString</a></span> code <span class="operator">=</span> <span class="string">&quot;$('iframe').remove()&quot;</span>;
view<span class="operator">-</span><span class="operator">&gt;</span>page()<span class="operator">-</span><span class="operator">&gt;</span>mainFrame()<span class="operator">-</span><span class="operator">&gt;</span>evaluateJavaScript(code);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>removeObjectElements()
{
<span class="type"><a href="qstring.html">QString</a></span> code <span class="operator">=</span> <span class="string">&quot;$('object').remove()&quot;</span>;
view<span class="operator">-</span><span class="operator">&gt;</span>page()<span class="operator">-</span><span class="operator">&gt;</span>mainFrame()<span class="operator">-</span><span class="operator">&gt;</span>evaluateJavaScript(code);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>removeEmbeddedElements()
{
<span class="type"><a href="qstring.html">QString</a></span> code <span class="operator">=</span> <span class="string">&quot;$('embed').remove()&quot;</span>;
view<span class="operator">-</span><span class="operator">&gt;</span>page()<span class="operator">-</span><span class="operator">&gt;</span>mainFrame()<span class="operator">-</span><span class="operator">&gt;</span>evaluateJavaScript(code);
}</pre>
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