[FEATURE] Show html items to browser panel

Allows HTML files to be shown and opened from the browser panel
qgis · Dec 6, 2019 · 2dbc0d7 · 2dbc0d7
1 parent 7478e79
commit 2dbc0d7
Show file tree

Hide file tree

Showing 5 changed files with 83 additions and 0 deletions.
diff --git a/images/images.qrc b/images/images.qrc
@@ -799,6 +799,7 @@
         <file>themes/default/mActionHandleStoreFilterExpressionChecked.svg</file>
         <file>themes/default/mActionHandleStoreFilterExpressionUnchecked.svg</file>
         <file>themes/default/stacked-bar.svg</file>
+        <file>themes/default/mIconHtml.svg</file>
     </qresource>
     <qresource prefix="/images/tips">
         <file alias="symbol_levels.png">qgis_tips/symbol_levels.png</file>

diff --git a/images/themes/default/mIconHtml.svg b/images/themes/default/mIconHtml.svg
diff --git a/src/app/qgisapp.cpp b/src/app/qgisapp.cpp
@@ -1263,6 +1263,7 @@ QgisApp::QgisApp( QSplashScreen *splash, bool restorePlugins, bool skipVersionCh
   registerCustomDropHandler( new QgsQptDropHandler() );
   QgsApplication::dataItemProviderRegistry()->addProvider( new QgsStyleXmlDataItemProvider() );
   registerCustomDropHandler( new QgsStyleXmlDropHandler() );
+  QgsApplication::dataItemProviderRegistry()->addProvider( new QgsHtmlDataItemProvider() );
 
   // set handler for missing layers (will be owned by QgsProject)
   mAppBadLayersHandler = new QgsHandleBadLayersHandler();

diff --git a/src/app/qgsappbrowserproviders.cpp b/src/app/qgsappbrowserproviders.cpp
@@ -1239,3 +1239,57 @@ void QgsBookmarksItemGuiProvider::importBookmarksToManager( QgsBookmarkManager *
   }
   settings.setValue( QStringLiteral( "Windows/Bookmarks/LastUsedDirectory" ), QFileInfo( fileName ).path() );
 }
+
+//
+// QgsHtmlDataItemProvider
+//
+
+QString QgsHtmlDataItemProvider::name()
+{
+  return QStringLiteral( "html" );
+}
+
+int QgsHtmlDataItemProvider::capabilities() const
+{
+  return QgsDataProvider::File;
+}
+
+QgsDataItem *QgsHtmlDataItemProvider::createDataItem( const QString &path, QgsDataItem *parentItem )
+{
+  QFileInfo fileInfo( path );
+
+  if ( fileInfo.suffix().compare( QLatin1String( "htm" ), Qt::CaseInsensitive ) == 0
+       || fileInfo.suffix().compare( QLatin1String( "html" ), Qt::CaseInsensitive ) == 0 )
+  {
+    return new QgsHtmlDataItem( parentItem, fileInfo.fileName(), path );
+  }
+  return nullptr;
+}
+
+//
+// QgsHtmlDataItemProvider
+//
+
+QgsHtmlDataItem::QgsHtmlDataItem( QgsDataItem *parent, const QString &name, const QString &path )
+  : QgsDataItem( QgsDataItem::Custom, parent, name, path )
+{
+  setState( QgsDataItem::Populated ); // no children
+  setIconName( QStringLiteral( "/mIconHtml.svg" ) );
+  setToolTip( QDir::toNativeSeparators( path ) );
+}
+
+bool QgsHtmlDataItem::handleDoubleClick()
+{
+  QDesktopServices::openUrl( QUrl::fromLocalFile( path() ) );
+  return true;
+}
+
+QList<QAction *> QgsHtmlDataItem::actions( QWidget *parent )
+{
+  QAction *openAction = new QAction( tr( "&Open File…" ), parent );
+  connect( openAction, &QAction::triggered, this, [ = ]
+  {
+    QDesktopServices::openUrl( QUrl::fromLocalFile( path() ) );
+  } );
+  return QList<QAction *>() << openAction;
+}
diff --git a/src/app/qgsappbrowserproviders.h b/src/app/qgsappbrowserproviders.h
@@ -406,4 +406,30 @@ class QgsBookmarkDropHandler : public QgsCustomDropHandler
     bool handleCustomUriCanvasDrop( const QgsMimeDataUtils::Uri &uri, QgsMapCanvas *canvas ) const override;
 };
 
+
+/**
+ * Data item provider for showing html files in the browser.
+ */
+class QgsHtmlDataItemProvider : public QgsDataItemProvider
+{
+  public:
+    QString name() override;
+    int capabilities() const override;
+    QgsDataItem *createDataItem( const QString &path, QgsDataItem *parentItem ) override;
+};
+
+/**
+ * Custom data item for html files.
+ */
+class QgsHtmlDataItem : public QgsDataItem
+{
+    Q_OBJECT
+
+  public:
+
+    QgsHtmlDataItem( QgsDataItem *parent, const QString &name, const QString &path );
+    bool handleDoubleClick() override;
+    QList< QAction * > actions( QWidget *parent ) override;
+};
+
 #endif // QGSAPPBROWSERPROVIDERS_H