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authorJoerg Bornemann <joerg.bornemann@theqtcompany.com>2015-11-16 13:32:06 +0100
committerJoerg Bornemann <joerg.bornemann@theqtcompany.com>2015-11-16 16:08:23 +0000
commiteb8eb72ec7e589eedd79143dc7c3fb241706f405 (patch)
treed7f37743c27355ee1a6c19ea7cb83e13227b8c4a /examples/webenginewidgets/contentmanipulation
parent2abe1f1b5a317339105a37d6f0ff8450b945d338 (diff)
rename fancybrowser to contentmanipulation
The name "fancybrowser" tricks people into thinking that this is the reference browser example. But this example is a very simple browser with an additional fancy content manipulation feature. Rename this example to contentmanipulation to reflect reality. Change-Id: I200b701acdc4de1210b550b9f054753e5f1d1ea4 Reviewed-by: Michael Br√ľning <michael.bruning@theqtcompany.com> Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com> Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Diffstat (limited to 'examples/webenginewidgets/contentmanipulation')
-rw-r--r--examples/webenginewidgets/contentmanipulation/contentmanipulation.pro10
-rw-r--r--examples/webenginewidgets/contentmanipulation/doc/images/contentmanipulation-example.pngbin0 -> 98031 bytes
-rw-r--r--examples/webenginewidgets/contentmanipulation/doc/src/contentmanipulation.qdoc142
-rw-r--r--examples/webenginewidgets/contentmanipulation/jquery.min.js19
-rw-r--r--examples/webenginewidgets/contentmanipulation/jquery.qrc5
-rw-r--r--examples/webenginewidgets/contentmanipulation/main.cpp57
-rw-r--r--examples/webenginewidgets/contentmanipulation/mainwindow.cpp225
-rw-r--r--examples/webenginewidgets/contentmanipulation/mainwindow.h80
8 files changed, 538 insertions, 0 deletions
diff --git a/examples/webenginewidgets/contentmanipulation/contentmanipulation.pro b/examples/webenginewidgets/contentmanipulation/contentmanipulation.pro
new file mode 100644
index 00000000..2ac97d48
--- /dev/null
+++ b/examples/webenginewidgets/contentmanipulation/contentmanipulation.pro
@@ -0,0 +1,10 @@
+QT += webenginewidgets
+
+HEADERS = mainwindow.h
+SOURCES = main.cpp \
+ mainwindow.cpp
+RESOURCES = jquery.qrc
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/webenginewidgets/contentmanipulation
+INSTALLS += target
diff --git a/examples/webenginewidgets/contentmanipulation/doc/images/contentmanipulation-example.png b/examples/webenginewidgets/contentmanipulation/doc/images/contentmanipulation-example.png
new file mode 100644
index 00000000..717ac9dd
--- /dev/null
+++ b/examples/webenginewidgets/contentmanipulation/doc/images/contentmanipulation-example.png
Binary files differ
diff --git a/examples/webenginewidgets/contentmanipulation/doc/src/contentmanipulation.qdoc b/examples/webenginewidgets/contentmanipulation/doc/src/contentmanipulation.qdoc
new file mode 100644
index 00000000..67617375
--- /dev/null
+++ b/examples/webenginewidgets/contentmanipulation/doc/src/contentmanipulation.qdoc
@@ -0,0 +1,142 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Free Documentation License Usage
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file. Please review the following information to ensure
+** the GNU Free Documentation License version 1.3 requirements
+** will be met: http://www.gnu.org/copyleft/fdl.html.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+ \example webenginewidgets/contentmanipulation
+ \title WebEngine Content Manipulation Example
+ \ingroup webengine-widgetexamples
+ \brief Demonstrates how to use browse web and manipulate content
+
+ \brief The Content Manipulation example shows how to use JQuery with QtWebEngine to
+ create a web browser with special effects and content
+ manipulation.
+
+ \image contentmanipulation-example.png
+
+ The application makes use of QWebEnginePage::evaluateJavaScript to
+ evaluate the jQuery JavaScript code. A QMainWindow with a QWebEngineView
+ as central widget builds up the browser itself.
+
+ \include examples-run.qdocinc
+
+ \section1 MainWindow Class Definition
+
+ The \c MainWindow class inherits QMainWindow. It implements a number of
+ slots to perform actions on both the application and on the web content.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.h 1
+
+ We also declare a QString that contains the jQuery, a QWebView
+ that displays the web content, and a QLineEdit that acts as the
+ address bar.
+
+ \section1 MainWindow Class Implementation
+
+ We start by implementing the constructor.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.cpp 1
+
+ The first part of the constructor sets the value of \c progress to
+ 0. This value will be used later in the code to visualize the
+ loading of a webpage.
+
+ Next, the jQuery library is loaded using a QFile and reading the file
+ content. The jQuery library is a JavaScript library that provides different
+ functions for manipulating HTML.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.cpp 2
+
+ The second part of the constructor creates a QWebView and connects
+ slots to the views signals. Furthermore, we create a QLineEdit as
+ the browsers address bar. We then set the horizontal QSizePolicy
+ to fill the available area in the browser at all times. We add the
+ QLineEdit to a QToolbar together with a set of navigation actions
+ from QWebView::pageAction.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.cpp 3
+
+ The third and last part of the constructor implements two QMenus and assigns
+ a set of actions to them. The last line sets the QWebView as the central
+ widget in the QMainWindow.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.cpp 4
+
+ When the page is loaded, \c adjustLocation() updates the address
+ bar; \c adjustLocation() is triggered by the \c loadFinished()
+ signal in QWebView. In \c changeLocation() we create a QUrl
+ object, and then use it to load the page into the QWebView. When
+ the new web page has finished loading, \c adjustLocation() will be
+ run once more to update the address bar.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.cpp 5
+
+ \c adjustTitle() sets the window title and displays the loading
+ progress. This slot is triggered by the \c titleChanged() signal
+ in QWebView.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.cpp 6
+
+ When a web page has loaded, \c finishLoading() is triggered by the
+ \c loadFinished() signal in QWebView. \c finishLoading() then updates the
+ progress in the title bar and calls \c evaluateJavaScript()
+ to evaluate the jQuery library. This evaluates the JavaScript against the
+ current web page. What that means is that the JavaScript can be viewed as
+ part of the content loaded into the QWebView, and therefore needs to be
+ loaded every time a new page is loaded. Once the jQuery library is loaded,
+ we can start executing the different jQuery functions in the browser.
+
+ The rotateImages() function is then called explicitely to make sure
+ that the images of the newly loaded page respect the state of the toggle
+ action.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.cpp 7
+
+ The first jQuery-based function, \c highlightAllLinks(), is designed to
+ highlight all links in the current webpage. The JavaScript code looks
+ for web elements named \e {a}, which is the tag for a hyperlink.
+ For each such element, the background color is set to be yellow by
+ using CSS.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.cpp 8
+
+ The \c rotateImages() function rotates the images on the current
+ web page. This JavaScript code relies on CSS transforms and
+ looks up all \e {img} elements and rotates the images 180 degrees
+ and then back again.
+
+ \snippet webenginewidgets/contentmanipulation/mainwindow.cpp 9
+
+ The remaining four methods remove different elements from the current web
+ page. \c removeGifImages() removes all GIF images on the page by looking up
+ the \e {src} attribute of all the elements on the web page. Any element with
+ a \e {gif} file as its source is removed. \c removeInlineFrames() removes all
+ \e {iframe} or inline elements. \c removeObjectElements() removes all
+ \e {object} elements, and \c removeEmbeddedElements() removes any elements
+ such as plugins embedded on the page using the \e {embed} tag.
+
+*/
+
diff --git a/examples/webenginewidgets/contentmanipulation/jquery.min.js b/examples/webenginewidgets/contentmanipulation/jquery.min.js
new file mode 100644
index 00000000..b1ae21d8
--- /dev/null
+++ b/examples/webenginewidgets/contentmanipulation/jquery.min.js
@@ -0,0 +1,19 @@
+/*
+ * jQuery JavaScript Library v1.3.2
+ * http://jquery.com/
+ *
+ * Copyright (c) 2009 John Resig
+ * Dual licensed under the MIT and GPL licenses.
+ * http://docs.jquery.com/License
+ *
+ * Date: 2009-02-19 17:34:21 -0500 (Thu, 19 Feb 2009)
+ * Revision: 6246
+ */
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I==="string"){if(H=="script"){o.globalEval(I)}if(H=="json"){I=l["eval"]("("+I+")")}}return I},param:function(E){var G=[];function H(I,J){G[G.length]=encodeURIComponent(I)+"="+encodeURIComponent(J)}if(o.isArray(E)||E.jquery){o.each(E,function(){H(this.name,this.value)})}else{for(var F in E){if(o.isArray(E[F])){o.each(E[F],function(){H(F,this)})}else{H(F,o.isFunction(E[F])?E[F]():E[F])}}}return G.join("&").replace(/%20/g,"+")}});var m={},n,d=[["height","marginTop","marginBottom","paddingTop","paddingBottom"],["width","marginLeft","marginRight","paddingLeft","paddingRight"],["opacity"]];function t(F,E){var G={};o.each(d.concat.apply([],d.slice(0,E)),function(){G[this]=F});return G}o.fn.extend({show:function(J,L){if(J){return this.animate(t("show",3),J,L)}else{for(var H=0,F=this.length;H<F;H++){var E=o.data(this[H],"olddisplay");this[H].style.display=E||"";if(o.css(this[H],"display")==="none"){var G=this[H].tagName,K;if(m[G]){K=m[G]}else{var I=o("<"+G+" 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this}});o.each({slideDown:t("show",1),slideUp:t("hide",1),slideToggle:t("toggle",1),fadeIn:{opacity:"show"},fadeOut:{opacity:"hide"}},function(E,F){o.fn[E]=function(G,H){return this.animate(F,G,H)}});o.extend({speed:function(G,H,F){var E=typeof G==="object"?G:{complete:F||!F&&H||o.isFunction(G)&&G,duration:G,easing:F&&H||H&&!o.isFunction(H)&&H};E.duration=o.fx.off?0:typeof E.duration==="number"?E.duration:o.fx.speeds[E.duration]||o.fx.speeds._default;E.old=E.complete;E.complete=function(){if(E.queue!==false){o(this).dequeue()}if(o.isFunction(E.old)){E.old.call(this)}};return E},easing:{linear:function(G,H,E,F){return E+F*G},swing:function(G,H,E,F){return((-Math.cos(G*Math.PI)/2)+0.5)*F+E}},timers:[],fx:function(F,E,G){this.options=E;this.elem=F;this.prop=G;if(!E.orig){E.orig={}}}});o.fx.prototype={update:function(){if(this.options.step){this.options.step.call(this.elem,this.now,this)}(o.fx.step[this.prop]||o.fx.step._default)(this);if((this.prop=="height"||this.prop=="width")&&this.elem.style){this.elem.style.display="block"}},cur:function(F){if(this.elem[this.prop]!=null&&(!this.elem.style||this.elem.style[this.prop]==null)){return this.elem[this.prop]}var E=parseFloat(o.css(this.elem,this.prop,F));return E&&E>-10000?E:parseFloat(o.curCSS(this.elem,this.prop))||0},custom:function(I,H,G){this.startTime=e();this.start=I;this.end=H;this.unit=G||this.unit||"px";this.now=this.start;this.pos=this.state=0;var E=this;function F(J){return E.step(J)}F.elem=this.elem;if(F()&&o.timers.push(F)&&!n){n=setInterval(function(){var K=o.timers;for(var 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J=this[0],G=J.offsetParent,F=J,O=J.ownerDocument,M,H=O.documentElement,K=O.body,L=O.defaultView,E=L.getComputedStyle(J,null),N=J.offsetTop,I=J.offsetLeft;while((J=J.parentNode)&&J!==K&&J!==H){M=L.getComputedStyle(J,null);N-=J.scrollTop,I-=J.scrollLeft;if(J===G){N+=J.offsetTop,I+=J.offsetLeft;if(o.offset.doesNotAddBorder&&!(o.offset.doesAddBorderForTableAndCells&&/^t(able|d|h)$/i.test(J.tagName))){N+=parseInt(M.borderTopWidth,10)||0,I+=parseInt(M.borderLeftWidth,10)||0}F=G,G=J.offsetParent}if(o.offset.subtractsBorderForOverflowNotVisible&&M.overflow!=="visible"){N+=parseInt(M.borderTopWidth,10)||0,I+=parseInt(M.borderLeftWidth,10)||0}E=M}if(E.position==="relative"||E.position==="static"){N+=K.offsetTop,I+=K.offsetLeft}if(E.position==="fixed"){N+=Math.max(H.scrollTop,K.scrollTop),I+=Math.max(H.scrollLeft,K.scrollLeft)}return{top:N,left:I}}}o.offset={initialize:function(){if(this.initialized){return}var L=document.body,F=document.createElement("div"),H,G,N,I,M,E,J=L.style.marginTop,K='<div style="position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;"><div></div></div><table style="position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;" cellpadding="0" cellspacing="0"><tr><td></td></tr></table>';M={position:"absolute",top:0,left:0,margin:0,border:0,width:"1px",height:"1px",visibility:"hidden"};for(E in M){F.style[E]=M[E]}F.innerHTML=K;L.insertBefore(F,L.firstChild);H=F.firstChild,G=H.firstChild,I=H.nextSibling.firstChild.firstChild;this.doesNotAddBorder=(G.offsetTop!==5);this.doesAddBorderForTableAndCells=(I.offsetTop===5);H.style.overflow="hidden",H.style.position="relative";this.subtractsBorderForOverflowNotVisible=(G.offsetTop===-5);L.style.marginTop="1px";this.doesNotIncludeMarginInBodyOffset=(L.offsetTop===0);L.style.marginTop=J;L.removeChild(F);this.initialized=true},bodyOffset:function(E){o.offset.initialized||o.offset.initialize();var G=E.offsetTop,F=E.offsetLeft;if(o.offset.doesNotIncludeMarginInBodyOffset){G+=parseInt(o.curCSS(E,"marginTop",true),10)||0,F+=parseInt(o.curCSS(E,"marginLeft",true),10)||0}return{top:G,left:F}}};o.fn.extend({position:function(){var I=0,H=0,F;if(this[0]){var G=this.offsetParent(),J=this.offset(),E=/^body|html$/i.test(G[0].tagName)?{top:0,left:0}:G.offset();J.top-=j(this,"marginTop");J.left-=j(this,"marginLeft");E.top+=j(G,"borderTopWidth");E.left+=j(G,"borderLeftWidth");F={top:J.top-E.top,left:J.left-E.left}}return F},offsetParent:function(){var E=this[0].offsetParent||document.body;while(E&&(!/^body|html$/i.test(E.tagName)&&o.css(E,"position")=="static")){E=E.offsetParent}return o(E)}});o.each(["Left","Top"],function(F,E){var G="scroll"+E;o.fn[G]=function(H){if(!this[0]){return null}return H!==g?this.each(function(){this==l||this==document?l.scrollTo(!F?H:o(l).scrollLeft(),F?H:o(l).scrollTop()):this[G]=H}):this[0]==l||this[0]==document?self[F?"pageYOffset":"pageXOffset"]||o.boxModel&&document.documentElement[G]||document.body[G]:this[0][G]}});o.each(["Height","Width"],function(I,G){var E=I?"Left":"Top",H=I?"Right":"Bottom",F=G.toLowerCase();o.fn["inner"+G]=function(){return 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diff --git a/examples/webenginewidgets/contentmanipulation/jquery.qrc b/examples/webenginewidgets/contentmanipulation/jquery.qrc
new file mode 100644
index 00000000..1022d682
--- /dev/null
+++ b/examples/webenginewidgets/contentmanipulation/jquery.qrc
@@ -0,0 +1,5 @@
+<RCC>
+ <qresource prefix="/" >
+ <file>jquery.min.js</file>
+ </qresource>
+</RCC>
diff --git a/examples/webenginewidgets/contentmanipulation/main.cpp b/examples/webenginewidgets/contentmanipulation/main.cpp
new file mode 100644
index 00000000..a21d881f
--- /dev/null
+++ b/examples/webenginewidgets/contentmanipulation/main.cpp
@@ -0,0 +1,57 @@
+/****************************************************************************
+**
+** 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:
+**
+** "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
+** "AS IS" 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets>
+#include "mainwindow.h"
+#include <qtwebenginewidgetsglobal.h>
+
+int main(int argc, char * argv[])
+{
+ QApplication app(argc, argv);
+
+ QUrl url;
+ if (argc > 1)
+ url = QUrl::fromUserInput(argv[1]);
+ else
+ url = QUrl("http://www.google.com/ncr");
+ MainWindow *browser = new MainWindow(url);
+ browser->show();
+ return app.exec();
+}
diff --git a/examples/webenginewidgets/contentmanipulation/mainwindow.cpp b/examples/webenginewidgets/contentmanipulation/mainwindow.cpp
new file mode 100644
index 00000000..3dca497a
--- /dev/null
+++ b/examples/webenginewidgets/contentmanipulation/mainwindow.cpp
@@ -0,0 +1,225 @@
+/****************************************************************************
+**
+** 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:
+**
+** "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
+** "AS IS" 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets>
+#include <QtWebEngineWidgets>
+#include "mainwindow.h"
+
+template<typename Arg, typename R, typename C>
+struct InvokeWrapper {
+ R *receiver;
+ void (C::*memberFun)(Arg);
+ void operator()(Arg result) {
+ (receiver->*memberFun)(result);
+ }
+};
+
+template<typename Arg, typename R, typename C>
+InvokeWrapper<Arg, R, C> invoke(R *receiver, void (C::*memberFun)(Arg))
+{
+ InvokeWrapper<Arg, R, C> wrapper = {receiver, memberFun};
+ return wrapper;
+}
+
+//! [1]
+
+MainWindow::MainWindow(const QUrl& url)
+{
+ progress = 0;
+
+ QFile file;
+ file.setFileName(":/jquery.min.js");
+ file.open(QIODevice::ReadOnly);
+ jQuery = file.readAll();
+ jQuery.append("\nvar qt = { 'jQuery': jQuery.noConflict(true) };");
+ file.close();
+//! [1]
+
+//! [2]
+ view = new QWebEngineView(this);
+ view->load(url);
+ connect(view, SIGNAL(loadFinished(bool)), SLOT(adjustLocation()));
+ connect(view, SIGNAL(titleChanged(QString)), SLOT(adjustTitle()));
+ connect(view, SIGNAL(loadProgress(int)), SLOT(setProgress(int)));
+ connect(view, SIGNAL(loadFinished(bool)), SLOT(finishLoading(bool)));
+
+ locationEdit = new QLineEdit(this);
+ locationEdit->setSizePolicy(QSizePolicy::Expanding, locationEdit->sizePolicy().verticalPolicy());
+ connect(locationEdit, SIGNAL(returnPressed()), SLOT(changeLocation()));
+
+ QToolBar *toolBar = addToolBar(tr("Navigation"));
+ toolBar->addAction(view->pageAction(QWebEnginePage::Back));
+ toolBar->addAction(view->pageAction(QWebEnginePage::Forward));
+ toolBar->addAction(view->pageAction(QWebEnginePage::Reload));
+ toolBar->addAction(view->pageAction(QWebEnginePage::Stop));
+ toolBar->addWidget(locationEdit);
+//! [2]
+
+ QMenu *viewMenu = menuBar()->addMenu(tr("&View"));
+ QAction* viewSourceAction = new QAction("Page Source", this);
+ connect(viewSourceAction, SIGNAL(triggered()), SLOT(viewSource()));
+ viewMenu->addAction(viewSourceAction);
+
+//! [3]
+ QMenu *effectMenu = menuBar()->addMenu(tr("&Effect"));
+ effectMenu->addAction("Highlight all links", this, SLOT(highlightAllLinks()));
+
+ rotateAction = new QAction(this);
+ rotateAction->setIcon(style()->standardIcon(QStyle::SP_FileDialogDetailedView));
+ rotateAction->setCheckable(true);
+ rotateAction->setText(tr("Turn images upside down"));
+ connect(rotateAction, SIGNAL(toggled(bool)), this, SLOT(rotateImages(bool)));
+ effectMenu->addAction(rotateAction);
+
+ QMenu *toolsMenu = menuBar()->addMenu(tr("&Tools"));
+ toolsMenu->addAction(tr("Remove GIF images"), this, SLOT(removeGifImages()));
+ toolsMenu->addAction(tr("Remove all inline frames"), this, SLOT(removeInlineFrames()));
+ toolsMenu->addAction(tr("Remove all object elements"), this, SLOT(removeObjectElements()));
+ toolsMenu->addAction(tr("Remove all embedded elements"), this, SLOT(removeEmbeddedElements()));
+
+ setCentralWidget(view);
+}
+//! [3]
+
+void MainWindow::viewSource()
+{
+ QTextEdit* textEdit = new QTextEdit(NULL);
+ textEdit->setAttribute(Qt::WA_DeleteOnClose);
+ textEdit->adjustSize();
+ textEdit->move(this->geometry().center() - textEdit->rect().center());
+ textEdit->show();
+
+ view->page()->toHtml(invoke(textEdit, &QTextEdit::setPlainText));
+}
+
+//! [4]
+void MainWindow::adjustLocation()
+{
+ locationEdit->setText(view->url().toString());
+}
+
+void MainWindow::changeLocation()
+{
+ QUrl url = QUrl::fromUserInput(locationEdit->text());
+ view->load(url);
+ view->setFocus();
+}
+//! [4]
+
+//! [5]
+void MainWindow::adjustTitle()
+{
+ if (progress <= 0 || progress >= 100)
+ setWindowTitle(view->title());
+ else
+ setWindowTitle(QString("%1 (%2%)").arg(view->title()).arg(progress));
+}
+
+void MainWindow::setProgress(int p)
+{
+ progress = p;
+ adjustTitle();
+}
+//! [5]
+
+//! [6]
+void MainWindow::finishLoading(bool)
+{
+ progress = 100;
+ adjustTitle();
+ view->page()->runJavaScript(jQuery);
+
+ rotateImages(rotateAction->isChecked());
+}
+//! [6]
+
+//! [7]
+void MainWindow::highlightAllLinks()
+{
+ // We append '; undefined' after the jQuery call here to prevent a possible recursion loop and crash caused by
+ // the way the elements returned by the each iterator elements reference each other, which causes problems upon
+ // converting them to QVariants.
+ QString code = "qt.jQuery('a').each( function () { qt.jQuery(this).css('background-color', 'yellow') } ); undefined";
+ view->page()->runJavaScript(code);
+}
+//! [7]
+
+//! [8]
+void MainWindow::rotateImages(bool invert)
+{
+ QString code;
+
+ // We append '; undefined' after each of the jQuery calls here to prevent a possible recursion loop and crash caused by
+ // the way the elements returned by the each iterator elements reference each other, which causes problems upon
+ // converting them to QVariants.
+ if (invert)
+ code = "qt.jQuery('img').each( function () { qt.jQuery(this).css('-webkit-transition', '-webkit-transform 2s'); qt.jQuery(this).css('-webkit-transform', 'rotate(180deg)') } ); undefined";
+ else
+ code = "qt.jQuery('img').each( function () { qt.jQuery(this).css('-webkit-transition', '-webkit-transform 2s'); qt.jQuery(this).css('-webkit-transform', 'rotate(0deg)') } ); undefined";
+ view->page()->runJavaScript(code);
+}
+//! [8]
+
+//! [9]
+void MainWindow::removeGifImages()
+{
+ QString code = "qt.jQuery('[src*=gif]').remove()";
+ view->page()->runJavaScript(code);
+}
+
+void MainWindow::removeInlineFrames()
+{
+ QString code = "qt.jQuery('iframe').remove()";
+ view->page()->runJavaScript(code);
+}
+
+void MainWindow::removeObjectElements()
+{
+ QString code = "qt.jQuery('object').remove()";
+ view->page()->runJavaScript(code);
+}
+
+void MainWindow::removeEmbeddedElements()
+{
+ QString code = "qt.jQuery('embed').remove()";
+ view->page()->runJavaScript(code);
+}
+//! [9]
+
diff --git a/examples/webenginewidgets/contentmanipulation/mainwindow.h b/examples/webenginewidgets/contentmanipulation/mainwindow.h
new file mode 100644
index 00000000..8e9b1253
--- /dev/null
+++ b/examples/webenginewidgets/contentmanipulation/mainwindow.h
@@ -0,0 +1,80 @@
+/****************************************************************************
+**
+** 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:
+**
+** "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
+** "AS IS" 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets>
+
+QT_BEGIN_NAMESPACE
+class QWebEngineView;
+class QLineEdit;
+QT_END_NAMESPACE
+
+//! [1]
+class MainWindow : public QMainWindow
+{
+ Q_OBJECT
+
+public:
+ MainWindow(const QUrl& url);
+
+protected slots:
+
+ void adjustLocation();
+ void changeLocation();
+ void adjustTitle();
+ void setProgress(int p);
+ void finishLoading(bool);
+
+ void viewSource();
+
+ void highlightAllLinks();
+ void rotateImages(bool invert);
+ void removeGifImages();
+ void removeInlineFrames();
+ void removeObjectElements();
+ void removeEmbeddedElements();
+
+private:
+ QString jQuery;
+ QWebEngineView *view;
+ QLineEdit *locationEdit;
+ QAction *rotateAction;
+ int progress;
+//! [1]
+};