Refactor accessibility for Qt5

* Moved most stuff to gui\accessible
* Moved widget-specific stuff to widgets\accessible
* Moved platform-specific code to either the bridge plugin (this was already the case)
  or to the platform plugin.
* Added several classes and functions. These have not yet gone through an API
  review. The plan is to do that in a later commit.
  Classes:
   - QPlatformAccessibility
   - QWindowsAccessibility
  Functions:
   - QWindow *QAccessibleInterface::window();
   - QPlatformAccessibility *QPlatformIntegration::accessibility()

* The bridge code can now either be a plugin or integrated into the platform plugin
* Mac accessibility is left out for now. Unix "should still work" (tm). These platforms
  should be fixed soon.

Change-Id: Ib49ffa73b647ee0af90864544c2769440157f562
Reviewed-on: http://codereview.qt-project.org/5330
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@nokia.com>
Reviewed-by: Jan-Arve Sæther <jan-arve.saether@nokia.com>

3 files changed, 15 insertions, 0 deletions

diff --git a/src/gui/kernel/qplatformintegration_qpa.cpp b/src/gui/kernel/qplatformintegration_qpa.cpp
index 856ceab87c..f3acf43e94 100644
--- a/src/gui/kernel/qplatformintegration_qpa.cpp
+++ b/src/gui/kernel/qplatformintegration_qpa.cpp
@@ -43,6 +43,7 @@
 
 #include <QtGui/QPlatformFontDatabase>
 #include <QtGui/QPlatformClipboard>
+#include <QtGui/QPlatformAccessibility>
 #include <QtGui/private/qguiapplication_p.h>
 #include <QtGui/private/qpixmap_raster_p.h>
 #include <private/qdnd_p.h>
@@ -209,6 +210,16 @@ QPlatformInputContext *QPlatformIntegration::inputContext() const
     return 0;
 }
 
+/*!
+  Returns the platforms accessibility.
+
+  The default implementation returns 0, implying no accessibility support.
+*/
+QPlatformAccessibility *QPlatformIntegration::accessibility() const
+{
+    return new QPlatformAccessibility;
+}
+
 QVariant QPlatformIntegration::styleHint(StyleHint hint) const
 {
     switch (hint) {
diff --git a/src/gui/kernel/qplatformintegration_qpa.h b/src/gui/kernel/qplatformintegration_qpa.h
index b9e1d02552..0ccd9f96d3 100644
--- a/src/gui/kernel/qplatformintegration_qpa.h
+++ b/src/gui/kernel/qplatformintegration_qpa.h
@@ -67,6 +67,7 @@ class QMenu;
 class QMenuBar;
 class QPlatformMenu;
 class QPlatformMenuBar;
+class QPlatformAccessibility;
 
 class Q_GUI_EXPORT QPlatformIntegration
 {
@@ -101,6 +102,7 @@ public:
 
     virtual QPlatformMenu *createPlatformMenu(QMenu *menu = 0) const;
     virtual QPlatformMenuBar *createPlatformMenuBar(QMenuBar *menuBar = 0) const;
+    virtual QPlatformAccessibility *accessibility() const;
 
 // Access native handles. The window handle is already available from Wid;
     virtual QPlatformNativeInterface *nativeInterface() const;
diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index 118844a0a2..d17ff9e039 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -559,6 +559,8 @@ void QWindow::setScreen(QScreen *newScreen)
 
 /*!
   Returns the accessibility interface for the object that the window represents
+  \preliminary
+  \sa QAccessible
   */
 QAccessibleInterface *QWindow::accessibleRoot() const
 {