Open URL or filenames from DB cells

A new button is added in the "Edit DB Cell" dock for interpreting the
current value as a URL or filename and opening it using the default
application for the file or a web browser for the URL.

The same can be directly invoked in the table browser using the same
shortcut as the FK navigation.

Related issue #1597

src/EditDialog.cpp

@@ -19,6 +19,7 @@
 #include <QPainter>
 #include <QClipboard>
 #include <QTextDocument>
+#include <QDesktopServices>
 
 #include <Qsci/qsciscintilla.h>
 #include <json.hpp>
@@ -65,6 +66,25 @@ EditDialog::EditDialog(QWidget* parent)
     ui->editorBinary->addAction(ui->actionPrint);
     ui->editorBinary->addAction(ui->actionCopyHexAscii);
 
+    connect(ui->actionOpenInApp, &QAction::triggered, this, [&]() {
+        QUrl url;
+        switch (dataSource) {
+        case SciBuffer:
+            url.setUrl(sciEdit->text(), QUrl::TolerantMode);
+            break;
+        case QtBuffer:
+            url.setUrl(ui->qtEdit->toPlainText(), QUrl::TolerantMode);;
+            break;
+        default:
+            return;
+        }
+        if(url.isValid())
+            QDesktopServices::openUrl(url);
+        else
+            QMessageBox::warning(this, QApplication::applicationName(),
+                                 tr("Content is not a valid URL or filename: %1").arg(url.errorString()));
+    });
+
     mustIndentAndCompact = Settings::getValue("databrowser", "indent_compact").toBool();
     ui->actionIndent->setChecked(mustIndentAndCompact);
 

src/EditDialog.ui

@@ -124,6 +124,7 @@
        <addaction name="actionIndent"/>
        <addaction name="actionImport"/>
        <addaction name="actionExport"/>
+       <addaction name="actionOpenInApp"/>
        <addaction name="actionNull"/>
        <addaction name="actionPrint"/>
       </widget>
@@ -175,8 +176,8 @@ Errors are indicated with a red squiggle underline.</string>
         <rect>
          <x>0</x>
          <y>0</y>
-         <width>598</width>
-         <height>264</height>
+         <width>84</width>
+         <height>35</height>
         </rect>
        </property>
        <layout class="QVBoxLayout" name="verticalLayout_2">
@@ -402,6 +403,24 @@ Errors are indicated with a red squiggle underline.</string>
     <string>Wrap lines on word boundaries</string>
    </property>
   </action>
+  <action name="actionOpenInApp">
+   <property name="icon">
+    <iconset resource="icons/icons.qrc">
+     <normaloff>:/icons/open_in_app</normaloff>:/icons/open_in_app</iconset>
+   </property>
+   <property name="text">
+    <string>Open in default application or browser</string>
+   </property>
+   <property name="iconText">
+    <string>Open in application</string>
+   </property>
+   <property name="toolTip">
+    <string>Open in default application or browser</string>
+   </property>
+   <property name="whatsThis">
+    <string>The value is interpreted as a file or URL and opened in the default application or web browser.</string>
+   </property>
+  </action>
  </widget>
  <tabstops>
   <tabstop>comboMode</tabstop>

src/ExtendedTableWidget.cpp

@@ -24,6 +24,7 @@
 #include <QCompleter>
 #include <QComboBox>
 #include <QShortcut>
+#include <QDesktopServices>
 
 #include <limits>
 
@@ -901,6 +902,17 @@ void ExtendedTableWidget::cellClicked(const QModelIndex& index)
             emit foreignKeyClicked(sqlb::ObjectIdentifier(m->currentTableName().schema(), fk.table()),
                                    fk.columns().size() ? fk.columns().at(0) : "",
                                    m->data(index, Qt::EditRole).toByteArray());
+        else {
+            // If this column does not have a foreign-key, try to interpret it as a filename/URL and open it in external application.
+
+            // TODO: Qt is doing a contiguous selection when Control+Click is pressed. It should be disabled, but at least moving the
+            // current index gives better result.
+            setCurrentIndex(index);
+
+            QUrl url (model()->data(index, Qt::EditRole).toString(), QUrl::TolerantMode);
+            if(url.isValid())
+                QDesktopServices::openUrl(url);
+        }
     }
 }
 

src/icons/icons.qrc

@@ -98,5 +98,6 @@
         <file alias="edit_cond_formats">style_edit.png</file>
         <file alias="clear_cond_formats">style_delete.png</file>
         <file alias="add_cond_format">style_add.png</file>
+        <file alias="open_in_app">application_link.png</file>
     </qresource>
 </RCC>