Allow compiling QGIS without QtWebkit

This allows to compile QGIS without webkit.

1. Webkit is soon-to-be deprecated
2. Webkit is not supported on Android
3. Who needs it anyway
4. The developer map on the about page is gone with webkit disabled
5. So is the information about plugins

Author: m-kuhn

CMakeLists.txt

@@ -229,6 +229,10 @@ SET (HAVE_SPATIALITE TRUE)
 # following variable is used in qgsconfig.h
 SET (HAVE_MSSQL TRUE)
 
+SET (WITH_QTWEBKIT TRUE CACHE INTERNAL "Enable QtWebkit support")
+IF (WITH_QTWEBKIT)
+  ADD_DEFINITIONS(-DWITH_QTWEBKIT)
+ENDIF(WITH_QTWEBKIT)
 #############################################################
 # search for Qt4
 SET(QT_MIN_VERSION 4.7.0)
@@ -243,8 +247,10 @@ IF (ENABLE_QT5)
   FIND_PACKAGE(Qt5Concurrent REQUIRED)
   FIND_PACKAGE(Qt5PrintSupport REQUIRED)
   FIND_PACKAGE(Qt5Positioning)
-  FIND_PACKAGE(Qt5WebKit REQUIRED)
-  FIND_PACKAGE(Qt5WebKitWidgets REQUIRED)
+  IF (WITH_QTWEBKIT)
+    FIND_PACKAGE(Qt5WebKit REQUIRED)
+    FIND_PACKAGE(Qt5WebKitWidgets REQUIRED)
+  ENDIF(WITH_QTWEBKIT)
   FIND_PACKAGE(Qt5Test REQUIRED)
   FIND_PACKAGE(Qt5UiTools REQUIRED)
   FIND_PACKAGE(Qt5Script REQUIRED)

src/app/pluginmanager/qgspluginmanager.cpp

@@ -30,7 +30,6 @@
 #include <QActionGroup>
 #include <QTextStream>
 #include <QTimer>
-#include <QWebPage>
 #include <QDesktopServices>
 
 #include "qgis.h"

src/app/qgsidentifyresultsdialog.cpp

@@ -33,6 +33,8 @@
 #include "qgsproject.h"
 #include "qgsrasterlayer.h"
 #include "qgsvectorlayer.h"
+#include "qgswebview.h"
+#include "qgswebframe.h"
 
 #include <QCloseEvent>
 #include <QLabel>
@@ -45,13 +47,11 @@
 #include <QDockWidget>
 #include <QMenuBar>
 #include <QPushButton>
-#include <QWebView>
 #include <QPrinter>
 #include <QPrintDialog>
 #include <QDesktopServices>
 #include <QMessageBox>
 #include <QComboBox>
-#include <QWebFrame>
 
 //graph
 #include <qwt_plot.h>
@@ -61,7 +61,7 @@
 #include "qgsvectorcolorrampv2.h" // for random colors
 
 
-QgsIdentifyResultsWebView::QgsIdentifyResultsWebView( QWidget *parent ) : QWebView( parent )
+QgsIdentifyResultsWebView::QgsIdentifyResultsWebView( QWidget *parent ) : QgsWebView( parent )
 {
   setSizePolicy( QSizePolicy::MinimumExpanding, QSizePolicy::Minimum );
   page()->setNetworkAccessManager( QgsNetworkAccessManager::instance() );
@@ -80,7 +80,7 @@ void QgsIdentifyResultsWebView::print( void )
   QPrintDialog *dialog = new QPrintDialog( &printer );
   if ( dialog->exec() == QDialog::Accepted )
   {
-    QWebView::print( &printer );
+    QgsWebView::print( &printer );
   }
 }
 
@@ -97,12 +97,12 @@ void QgsIdentifyResultsWebView::contextMenuEvent( QContextMenuEvent *e )
   delete menu;
 }
 
-QWebView *QgsIdentifyResultsWebView::createWindow( QWebPage::WebWindowType type )
+QgsWebView *QgsIdentifyResultsWebView::createWindow( QWebPage::WebWindowType type )
 {
   QDialog *d = new QDialog( this );
   QLayout *l = new QVBoxLayout( d );
 
-  QWebView *wv = new QWebView( d );
+  QgsWebView *wv = new QgsWebView( d );
   l->addWidget( wv );
 
   wv->setSizePolicy( QSizePolicy::MinimumExpanding, QSizePolicy::Minimum );

src/app/qgsidentifyresultsdialog.h

@@ -27,10 +27,10 @@
 #include "qgsmaptoolidentify.h"
 #include "qgscoordinatereferencesystem.h"
 #include "qgsmaplayeractionregistry.h"
+#include "qgswebview.h"
 
 #include <QWidget>
 #include <QList>
-#include <QWebView>
 
 class QCloseEvent;
 class QTreeWidgetItem;
@@ -49,7 +49,7 @@ class QwtPlotCurve;
  *@author Gary E.Sherman
  */
 
-class APP_EXPORT QgsIdentifyResultsWebView : public QWebView
+class APP_EXPORT QgsIdentifyResultsWebView : public QgsWebView
 {
     Q_OBJECT
   public:
@@ -59,7 +59,7 @@ class APP_EXPORT QgsIdentifyResultsWebView : public QWebView
     void print( void );
   protected:
     void contextMenuEvent( QContextMenuEvent* ) override;
-    QWebView *createWindow( QWebPage::WebWindowType type ) override;
+    QgsWebView *createWindow( QWebPage::WebWindowType type ) override;
 };
 
 class APP_EXPORT QgsIdentifyResultsFeatureItem: public QTreeWidgetItem

src/core/CMakeLists.txt

@@ -291,6 +291,13 @@ SET(QGIS_CORE_SRCS
   raster/qgshuesaturationfilter.cpp
 )
 
+IF (NOT WITH_QTWEBKIT)
+  SET(QGIS_CORE_SRCS ${QGIS_CORE_SRCS}
+    qgswebpage.cpp
+    qgswebframe.cpp
+  )
+ENDIF(NOT WITH_QTWEBKIT)
+
 IF(ENABLE_MODELTEST)
   SET(MODELTEST_SRCS
     ../../tests/qt_modeltest/modeltest.cpp
@@ -322,7 +329,6 @@ IF (WITH_INTERNAL_QEXTSERIALPORT)
     gps/qextserialport/qextserialport.cpp
     gps/qextserialport/qextserialenumerator.cpp
   )
-
   IF(WIN32)
     SET(QGIS_CORE_SRCS ${QGIS_CORE_SRCS}
       gps/qextserialport/win_qextserialport.cpp
@@ -388,6 +394,7 @@ SET(QGIS_CORE_MOC_HDRS
   qgsvectorlayercache.h
   qgsvectorlayerjoinbuffer.h
   qgsgeometryvalidator.h
+  qgswebview.h
 
   composer/qgsaddremoveitemcommand.h
   composer/qgscomposerlegend.h
@@ -438,6 +445,13 @@ SET(QGIS_CORE_MOC_HDRS
   layertree/qgslayertreeregistrybridge.h
 )
 
+IF (NOT WITH_QTWEBKIT)
+  SET(QGIS_CORE_MOC_HDRS ${QGIS_CORE_MOC_HDRS}
+    qgswebpage.h
+    qgswebframe.h
+  )
+ENDIF(NOT WITH_QTWEBKIT)
+
 IF (NOT QT5_BUILD)
   SET(QGIS_CORE_MOC_HDRS ${QGIS_CORE_MOC_HDRS}
     qgshttptransaction.h
@@ -572,12 +586,15 @@ SET(QGIS_CORE_HDRS
   qgsvectorlayerundocommand.h
   qgsvectorsimplifymethod.h
   qgsxmlutils.h
+  qgswebpage.h
+  qgswebframe.h
+  qgswebview.h
 
   diagram/qgsdiagram.h
   diagram/qgspiediagram.h
   diagram/qgstextdiagram.h
   diagram/qgshistogramdiagram.h
-  
+
   effects/qgsimageoperation.h
   effects/qgspainteffect.h
   effects/qgseffectstack.h

src/core/composer/qgscomposerhtml.cpp

@@ -26,10 +26,11 @@
 #include "qgsproject.h"
 #include "qgsdistancearea.h"
 
+#include "qgswebpage.h"
+#include "qgswebframe.h"
+
 #include <QCoreApplication>
 #include <QPainter>
-#include <QWebFrame>
-#include <QWebPage>
 #include <QImage>
 #include <QNetworkReply>
 

src/core/composer/qgscomposerlabel.cpp

@@ -25,14 +25,16 @@
 #include "qgsproject.h"
 #include "qgsdistancearea.h"
 
+#include "qgswebview.h"
+#include "qgswebframe.h"
+#include "qgswebpage.h"
+
 #include <QCoreApplication>
 #include <QDate>
 #include <QDomElement>
 #include <QPainter>
 #include <QSettings>
 #include <QTimer>
-#include <QWebFrame>
-#include <QWebPage>
 #include <QEventLoop>
 
 QgsComposerLabel::QgsComposerLabel( QgsComposition *composition )

src/core/qgswebframe.cpp

@@ -0,0 +1,52 @@
+/***************************************************************************
+
+               ----------------------------------------------------
+              date                 : 19.5.2015
+              copyright            : (C) 2015 by Matthias Kuhn
+              email                : matthias (at) opengis.ch
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "qgswebframe.h"
+
+QWebFrame::QWebFrame()
+{
+
+}
+
+void QWebFrame::setZoomFactor(qreal factor)
+{
+
+}
+
+void QWebFrame::setScrollBarPolicy(Qt::Orientation, Qt::ScrollBarPolicy)
+{
+
+}
+
+void QWebFrame::setHtml(const QString&, const QUrl)
+{
+
+}
+
+QSize QWebFrame::contentsSize() const
+{
+
+}
+
+void QWebFrame::render( QPainter*, const QRegion )
+{
+
+}
+
+void QWebFrame::addToJavaScriptWindowObject(const QString&, QObject*)
+{
+
+}
+

src/core/qgswebframe.h

@@ -0,0 +1,74 @@
+/***************************************************************************
+
+               ----------------------------------------------------
+              date                 : 19.5.2015
+              copyright            : (C) 2015 by Matthias Kuhn
+              email                : matthias (at) opengis.ch
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef QGSWEBFRAME_H
+#define QGSWEBFRAME_H
+
+#ifdef WITH_QTWEBKIT
+#include <QtWebKit/QWebFrame>
+#else
+
+#include <QObject>
+#include <QPainter>
+#include <QUrl>
+
+class QWebFrame : public QObject
+{
+  Q_OBJECT
+
+  public:
+    QWebFrame( QObject* parent = 0 )
+      :QObject( parent )
+    {
+
+    }
+
+    void setZoomFactor( qreal factor )
+    {
+      Q_UNUSED( factor );
+    }
+
+    void setScrollBarPolicy( Qt::Orientation orientation, Qt::ScrollBarPolicy scrollbarpolicy )
+    {
+      Q_UNUSED( orientation );
+      Q_UNUSED( scrollbarpolicy );
+    }
+
+    void setHtml( const QString& html, const QUrl& url = QUrl() )
+    {
+      Q_UNUSED( html );
+      Q_UNUSED( url );
+    }
+
+    QSize contentsSize() const
+    {
+      return QSize();
+    }
+
+    void render( QPainter*, const QRegion = QRegion() )
+    {
+
+    }
+
+    void addToJavaScriptWindowObject( const QString&, QObject* )
+    {
+
+    }
+
+  signals:
+    void javaScriptWindowObjectCleared();
+};
+#endif
+#endif // QGSWEBFRAME_H