Accessibility: Use factory function instead of plugin

This simplifies deployment and makes instantiating accessible interfaces
faster since no plugin needs to be loaded.

[ChangeLog][QtWidgets] Accessibility for widgets is now included in the
widget library instead of being a separate plugin. For static builds
this means that libqtaccessiblewidgets is no longer required.

Task-number: QTBUG-32888

Change-Id: Ie7347898868fd67c1fc568f0d251cbd2ef71e041
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>

src/plugins/accessible/accessible.pro

@@ -1,5 +0,0 @@
-TEMPLATE = subdirs
-
-contains(QT_CONFIG, accessibility) {
-     SUBDIRS += widgets 
-}

src/plugins/accessible/widgets/widgets.json

@@ -1,54 +0,0 @@
-{
-    "Keys": [
-    "QLineEdit",
-    "QComboBox",
-    "QAbstractSpinBox",
-    "QSpinBox",
-    "QDoubleSpinBox",
-    "QScrollBar",
-    "QSlider",
-    "QAbstractSlider",
-    "QToolButton",
-    "QCheckBox",
-    "QRadioButton",
-    "QPushButton",
-    "QAbstractButton",
-    "QDialog",
-    "QMessageBox",
-    "QMainWindow",
-    "QLabel",
-    "QLCDNumber",
-    "QGroupBox",
-    "QStatusBar",
-    "QProgressBar",
-    "QPlainTextEdit",
-    "QMenuBar",
-    "QMenu",
-    "QTabBar",
-    "QToolBar",
-    "QSizeGrip",
-    "QListView",
-    "QTreeView",
-    "QTableView",
-    "QWidget",
-    "QSplitter",
-    "QSplitterHandle",
-    "QTextEdit",
-    "QTipLabel",
-    "QFrame",
-    "QStackedWidget",
-    "QToolBox",
-    "QMdiArea",
-    "QMdiSubWindow",
-    "QDialogButtonBox",
-    "QDial",
-    "QRubberBand",
-    "QTextBrowser",
-    "QAbstractScrollArea",
-    "QScrollArea",
-    "QCalendarWidget",
-    "QDockWidget",
-    "QDesktopScreenWidget",
-    "QWindowContainer"
-    ]
-}

src/plugins/plugins.pro

@@ -3,6 +3,5 @@ TEMPLATE = subdirs
 SUBDIRS *= sqldrivers
 !winrt:qtHaveModule(network): SUBDIRS += bearer
 qtHaveModule(gui): SUBDIRS *= imageformats platforms platforminputcontexts platformthemes generic
-qtHaveModule(widgets): SUBDIRS += accessible
 
 !winrt:!wince*:qtHaveModule(widgets):SUBDIRS += printsupport

src/widgets/accessible/accessible.pri

@@ -1,6 +1,23 @@
 # Qt accessibility module
 
 contains(QT_CONFIG, accessibility) {
-    HEADERS += accessible/qaccessiblewidget.h
-    SOURCES += accessible/qaccessiblewidget.cpp
+    HEADERS += \
+        accessible/qaccessiblewidget.h \
+        accessible/qaccessiblewidgetfactory_p.h \
+        accessible/complexwidgets.h \
+        accessible/itemviews.h \
+        accessible/qaccessiblemenu.h \
+        accessible/qaccessiblewidgets.h \
+        accessible/rangecontrols.h \
+        accessible/simplewidgets.h
+
+    SOURCES += \
+        accessible/qaccessiblewidget.cpp \
+        accessible/qaccessiblewidgetfactory.cpp \
+        accessible/complexwidgets.cpp \
+        accessible/itemviews.cpp \
+        accessible/qaccessiblemenu.cpp \
+        accessible/qaccessiblewidgets.cpp \
+        accessible/rangecontrols.cpp \
+        accessible/simplewidgets.cpp
 }

src/widgets/accessible/complexwidgets.cpp

@@ -66,7 +66,7 @@
 
 QT_BEGIN_NAMESPACE
 
-QString Q_GUI_EXPORT qt_accStripAmp(const QString &text);
+QString qt_accStripAmp(const QString &text);
 
 #ifndef QT_NO_TABBAR
 /*!

src/widgets/accessible/itemviews.cpp

@@ -51,7 +51,7 @@
 
 QT_BEGIN_NAMESPACE
 
-QString Q_GUI_EXPORT qt_accStripAmp(const QString &text);
+QString qt_accStripAmp(const QString &text);
 
 #ifndef QT_NO_ITEMVIEWS
 /*

src/widgets/accessible/qaccessiblemenu.cpp

@@ -52,8 +52,8 @@ QT_BEGIN_NAMESPACE
 
 #ifndef QT_NO_MENU
 
-QString Q_GUI_EXPORT qt_accStripAmp(const QString &text);
-QString Q_GUI_EXPORT qt_accHotKey(const QString &text);
+QString qt_accStripAmp(const QString &text);
+QString qt_accHotKey(const QString &text);
 
 QAccessibleInterface *getOrCreateMenu(QWidget *menu, QAction *action)
 {

src/widgets/accessible/qaccessiblewidget.cpp

@@ -134,7 +134,7 @@ static int qt_accAmpIndex(const QString &text)
 #endif
 }
 
-QString Q_WIDGETS_EXPORT qt_accStripAmp(const QString &text)
+QString qt_accStripAmp(const QString &text)
 {
     QString newText(text);
     int ampIndex = qt_accAmpIndex(newText);
@@ -144,7 +144,7 @@ QString Q_WIDGETS_EXPORT qt_accStripAmp(const QString &text)
     return newText.replace(QLatin1String("&&"), QLatin1String("&"));
 }
 
-QString Q_WIDGETS_EXPORT qt_accHotKey(const QString &text)
+QString qt_accHotKey(const QString &text)
 {
     int ampIndex = qt_accAmpIndex(text);
     if (ampIndex != -1)

src/widgets/accessible/qaccessiblewidgetfactory.cpp

@@ -46,8 +46,6 @@
 #include "complexwidgets.h"
 #include "itemviews.h"
 
-#include <qaccessibleplugin.h>
-#include <qplugin.h>
 #include <qpushbutton.h>
 #include <qtoolbutton.h>
 #include <qtreeview.h>
@@ -58,23 +56,7 @@
 
 QT_BEGIN_NAMESPACE
 
-
-class AccessibleFactory : public QAccessiblePlugin
-{
-    Q_OBJECT
-    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QAccessibleFactoryInterface" FILE "widgets.json")
-
-public:
-    AccessibleFactory();
-
-    QAccessibleInterface *create(const QString &classname, QObject *object);
-};
-
-AccessibleFactory::AccessibleFactory()
-{
-}
-
-QAccessibleInterface *AccessibleFactory::create(const QString &classname, QObject *object)
+QAccessibleInterface *qAccessibleFactory(const QString &classname, QObject *object)
 {
     QAccessibleInterface *iface = 0;
     if (!object || !object->isWidgetType())
@@ -254,9 +236,6 @@ QAccessibleInterface *AccessibleFactory::create(const QString &classname, QObjec
     return iface;
 }
 
-
 QT_END_NAMESPACE
 
-#include "main.moc"
-
 #endif // QT_NO_ACCESSIBILITY

src/widgets/accessible/qaccessiblewidgetfactory_p.h

@@ -0,0 +1,53 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtWidgets module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/qaccessible.h>
+
+#ifndef QACCESSIBLEWIDGETFACTORY_H
+#define QACCESSIBLEWIDGETFACTORY_H
+
+QT_BEGIN_NAMESPACE
+
+QAccessibleInterface *qAccessibleFactory(const QString &classname, QObject *object);
+
+QT_END_NAMESPACE
+
+#endif

src/widgets/accessible/qaccessiblewidgets.cpp

@@ -72,8 +72,7 @@
 
 QT_BEGIN_NAMESPACE
 
-QString Q_GUI_EXPORT qt_accStripAmp(const QString &text);
-QString Q_GUI_EXPORT qt_accHotKey(const QString &text);
+QString qt_accStripAmp(const QString &text);
 
 QList<QWidget*> childWidgets(const QWidget *widget, bool includeTopLevel)
 {

src/widgets/accessible/rangecontrols.cpp

@@ -57,7 +57,7 @@
 QT_BEGIN_NAMESPACE
 
 #ifndef QT_NO_ACCESSIBILITY
-extern QString Q_GUI_EXPORT qt_accStripAmp(const QString &text);
+QString qt_accStripAmp(const QString &text);
 #ifndef QT_NO_SCROLLBAR
 extern QStyleOptionSlider Q_GUI_EXPORT qt_qscrollbarStyleOption(QScrollBar *scrollBar);
 #endif

src/widgets/accessible/simplewidgets.cpp

@@ -71,8 +71,8 @@ QT_BEGIN_NAMESPACE
 
 extern QList<QWidget*> childWidgets(const QWidget *widget, bool includeTopLevel = false);
 
-QString Q_GUI_EXPORT qt_accStripAmp(const QString &text);
-QString Q_GUI_EXPORT qt_accHotKey(const QString &text);
+QString qt_accStripAmp(const QString &text);
+QString qt_accHotKey(const QString &text);
 
 /*!
   \class QAccessibleButton

src/widgets/kernel/qapplication.cpp

@@ -77,6 +77,7 @@
 #endif
 
 #include "private/qkeymapper_p.h"
+#include "private/qaccessiblewidgetfactory_p.h"
 
 #include <qthread.h>
 #include <private/qthread_p.h>
@@ -557,6 +558,11 @@ void QApplicationPrivate::construct()
     qt_gui_eval_init(application_type);
 #endif
 
+#ifndef QT_NO_ACCESSIBILITY
+    // factory for accessible interfaces for widgets shipped with Qt
+    QAccessible::installFactory(&qAccessibleFactory);
+#endif
+
 #ifndef QT_NO_LIBRARY
     if(load_testability) {
         QLibrary testLib(QLatin1String("qttestability"));

src/widgets/widgets.pro

@@ -8,9 +8,6 @@ DEFINES   += QT_NO_USING_NAMESPACE
 win32-msvc*|win32-icc:QMAKE_LFLAGS += /BASE:0x65000000
 irix-cc*:QMAKE_CXXFLAGS += -no_prelink -ptused
 
-MODULE_PLUGIN_TYPES += \
-    accessible/libqtaccessiblewidgets.so
-
 QMAKE_DOCS = $$PWD/doc/qtwidgets.qdocconf
 
 load(qt_module)