Fixed|Input|Bindings: Activate "console" bcontext when console has focus

Otherwise key modifiers might fire the gun, etc. when typing in the
console.

doomsday/client/include/ui/widgetactions.h

@@ -73,6 +73,12 @@ class WidgetActions
      */
     void trackInput(de::Event const &event);
 
+    void activateContext(de::String const &context, bool yes = true);
+
+    void deactivateContext(de::String const &context) {
+        activateContext(context, false);
+    }
+
 private:
     DENG2_PRIVATE(d)
 };

doomsday/client/include/ui/widgets/consolecommandwidget.h

@@ -36,6 +36,8 @@ class ConsoleCommandWidget : public de::CommandWidget
     ConsoleCommandWidget(de::String const &name = "");
 
     // Events.
+    void focusGained();
+    void focusLost();
     bool handleEvent(de::Event const &event);
 
 protected:

doomsday/client/src/ui/widgetactions.cpp

@@ -81,3 +81,11 @@ void WidgetActions::trackInput(Event const &event)
     DD_ConvertEvent(event, &ddev);
     I_TrackInput(&ddev);
 }
+
+void WidgetActions::activateContext(String const &context, bool yes)
+{
+    if(bcontext_t *bc = B_ContextByName(context.toLatin1()))
+    {
+        B_ActivateContext(bc, yes);
+    }
+}

doomsday/client/src/ui/widgets/consolecommandwidget.cpp

@@ -64,6 +64,18 @@ ConsoleCommandWidget::ConsoleCommandWidget(String const &name)
     d->updateLexicon();
 }
 
+void ConsoleCommandWidget::focusGained()
+{
+    CommandWidget::focusGained();
+    ClientApp::widgetActions().activateContext("console");
+}
+
+void ConsoleCommandWidget::focusLost()
+{
+    CommandWidget::focusLost();
+    ClientApp::widgetActions().deactivateContext("console");
+}
+
 bool ConsoleCommandWidget::handleEvent(Event const &event)
 {
     if(isDisabled()) return false;