/*
- * Copyright (c) 2019 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2021 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
// CLASS HEADER
// EXTERNAL INCLUDES
+#include <dali/devel-api/common/stage.h>
#include <dali/integration-api/debug.h>
+#include <dali/public-api/actors/layer.h>
#include <iostream>
#include <unordered_map>
// INTERNAL INCLUDES
+#include <dali/devel-api/adaptor-framework/environment-variable.h>
+#include <dali/devel-api/adaptor-framework/window-devel.h>
#include <dali/internal/accessibility/bridge/bridge-accessible.h>
#include <dali/internal/accessibility/bridge/bridge-action.h>
#include <dali/internal/accessibility/bridge/bridge-collection.h>
#include <dali/internal/accessibility/bridge/bridge-component.h>
+#include <dali/internal/accessibility/bridge/bridge-editable-text.h>
#include <dali/internal/accessibility/bridge/bridge-object.h>
-#include <dali/internal/accessibility/bridge/bridge-value.h>
+#include <dali/internal/accessibility/bridge/bridge-selection.h>
#include <dali/internal/accessibility/bridge/bridge-text.h>
-#include <dali/internal/accessibility/bridge/bridge-editable-text.h>
+#include <dali/internal/accessibility/bridge/bridge-value.h>
+#include <dali/internal/accessibility/bridge/bridge-application.h>
+#include <dali/internal/accessibility/bridge/dummy-atspi.h>
+#include <dali/internal/adaptor/common/adaptor-impl.h>
+#include <dali/internal/system/common/environment-variables.h>
using namespace Dali::Accessibility;
+namespace // unnamed namespace
+{
+
+const int RETRY_INTERVAL = 1000;
+
+} // unnamed namespace
+
+/**
+ * @brief The BridgeImpl class is to implement some Bridge functions.
+ */
class BridgeImpl : public virtual BridgeBase,
public BridgeAccessible,
public BridgeObject,
public BridgeAction,
public BridgeValue,
public BridgeText,
- public BridgeEditableText
+ public BridgeEditableText,
+ public BridgeSelection,
+ public BridgeApplication
{
- DBus::DBusClient listenOnAtspiEnabledSignalClient;
- DBus::DBusClient registryClient, directReadingClient;
- bool screenReaderEnabled = false;
- bool isEnabled = false;
- bool isShown = false;
- std::unordered_map <int32_t, std::function<void(std::string)>> directReadingCallbacks;
- Dali::Actor highlightedActor;
- std::function<void(Dali::Actor)> highlightClearAction;
+ DBus::DBusClient mAccessibilityStatusClient;
+ DBus::DBusClient mRegistryClient;
+ DBus::DBusClient mDirectReadingClient;
+ bool mIsScreenReaderEnabled = false;
+ bool mIsEnabled = false;
+ bool mIsShown = false;
+ std::unordered_map<int32_t, std::function<void(std::string)>> mDirectReadingCallbacks;
+ Dali::Actor mHighlightedActor;
+ std::function<void(Dali::Actor)> mHighlightClearAction;
+ Dali::CallbackBase* mIdleCallback = NULL;
+ Dali::Timer mInitializeTimer;
+ Dali::Timer mReadIsEnabledTimer;
+ Dali::Timer mReadScreenReaderEnabledTimer;
public:
BridgeImpl()
{
- listenOnAtspiEnabledSignalClient = DBus::DBusClient{ A11yDbusName, A11yDbusPath, A11yDbusStatusInterface, DBus::ConnectionType::SESSION };
-
- listenOnAtspiEnabledSignalClient.addPropertyChangedEvent< bool >( "ScreenReaderEnabled", [this]( bool res )
- {
- screenReaderEnabled = res;
- if( screenReaderEnabled || isEnabled )
- {
- ForceUp();
- }
- else
- {
- ForceDown();
- }
- }
- );
-
- listenOnAtspiEnabledSignalClient.addPropertyChangedEvent< bool >( "IsEnabled", [this]( bool res )
- {
- isEnabled = res;
- if( screenReaderEnabled || isEnabled )
- {
- ForceUp();
- }
- else
- {
- ForceDown();
- }
- }
- );
}
- Consumed Emit( KeyEventType type, unsigned int keyCode, const std::string& keyName, unsigned int timeStamp, bool isText ) override
+ /**
+ * @copydoc Dali::Accessibility::Bridge::Emit()
+ */
+ Consumed Emit(KeyEventType type, unsigned int keyCode, const std::string& keyName, unsigned int timeStamp, bool isText) override
{
- if (!IsUp())
+ if(!IsUp())
{
return Consumed::NO;
}
- unsigned int evType = 0;
+ unsigned int keyType = 0;
- switch( type )
+ switch(type)
{
case KeyEventType::KEY_PRESSED:
{
- evType = 0;
+ keyType = 0;
break;
}
case KeyEventType::KEY_RELEASED:
{
- evType = 1;
+ keyType = 1;
break;
}
default:
return Consumed::NO;
}
}
- auto m = registryClient.method< bool( std::tuple< uint32_t, int32_t, int32_t, int32_t, int32_t, std::string, bool > ) >( "NotifyListenersSync" );
- auto result = m.call( std::tuple< uint32_t, int32_t, int32_t, int32_t, int32_t, std::string, bool >{evType, 0, static_cast< int32_t >( keyCode ), 0, static_cast< int32_t >( timeStamp ), keyName, isText ? 1 : 0} );
- if( !result )
+
+ auto methodObject = mRegistryClient.method<bool(std::tuple<uint32_t, int32_t, int32_t, int32_t, int32_t, std::string, bool>)>("NotifyListenersSync");
+ auto result = methodObject.call(std::tuple<uint32_t, int32_t, int32_t, int32_t, int32_t, std::string, bool>{keyType, 0, static_cast<int32_t>(keyCode), 0, static_cast<int32_t>(timeStamp), keyName, isText ? 1 : 0});
+ if(!result)
{
LOG() << result.getError().message;
return Consumed::NO;
}
- return std::get< 0 >( result ) ? Consumed::YES : Consumed::NO;
+ return std::get<0>(result) ? Consumed::YES : Consumed::NO;
}
+ /**
+ * @copydoc Dali::Accessibility::Bridge::Pause()
+ */
void Pause() override
{
- if (!IsUp())
+ if(!IsUp())
{
return;
}
- directReadingClient.method< DBus::ValueOrError< void >( bool ) > ( "PauseResume" ).asyncCall(
- []( DBus::ValueOrError< void > msg ) {
- if (!msg)
- {
- LOG() << "Direct reading command failed (" << msg.getError().message << ")";
- }
- },
- true);
+ mDirectReadingClient.method<DBus::ValueOrError<void>(bool)>("PauseResume").asyncCall([](DBus::ValueOrError<void> msg) {
+ if(!msg)
+ {
+ LOG() << "Direct reading command failed (" << msg.getError().message << ")";
+ }
+ },
+ true);
}
+ /**
+ * @copydoc Dali::Accessibility::Bridge::Resume()
+ */
void Resume() override
{
- if (!IsUp())
+ if(!IsUp())
{
return;
}
- directReadingClient.method< DBus::ValueOrError< void >( bool ) > ( "PauseResume" ).asyncCall(
- []( DBus::ValueOrError< void > msg) {
- if (!msg)
- {
- LOG() << "Direct reading command failed (" << msg.getError().message << ")";
- }
- },
- false);
+ mDirectReadingClient.method<DBus::ValueOrError<void>(bool)>("PauseResume").asyncCall([](DBus::ValueOrError<void> msg) {
+ if(!msg)
+ {
+ LOG() << "Direct reading command failed (" << msg.getError().message << ")";
+ }
+ },
+ false);
}
- void Say( const std::string& text, bool discardable, std::function< void(std::string) > callback ) override
+ /**
+ * @copydoc Dali::Accessibility::Bridge::StopReading()
+ */
+ void StopReading(bool alsoNonDiscardable) override
{
- if (!IsUp())
+ if(!IsUp())
{
return;
}
- directReadingClient.method< DBus::ValueOrError< std::string, bool, int32_t >( std::string, bool ) > ( "ReadCommand" ).asyncCall(
- [=]( DBus::ValueOrError<std::string, bool, int32_t> msg ) {
- if ( !msg )
- {
- LOG() << "Direct reading command failed (" << msg.getError().message << ")";
- }
- else if( callback )
- {
- directReadingCallbacks.emplace( std::get< 2 >( msg ), callback);
- }
- },
- text,
- discardable);
+ mDirectReadingClient.method<DBus::ValueOrError<void>(bool)>("StopReading").asyncCall([](DBus::ValueOrError<void> msg) {
+ if(!msg)
+ {
+ LOG() << "Direct reading command failed (" << msg.getError().message << ")";
+ }
+ },
+ alsoNonDiscardable);
+ }
+
+ /**
+ * @copydoc Dali::Accessibility::Bridge::Say()
+ */
+ void Say(const std::string& text, bool discardable, std::function<void(std::string)> callback) override
+ {
+ if(!IsUp())
+ {
+ return;
+ }
+
+ mDirectReadingClient.method<DBus::ValueOrError<std::string, bool, int32_t>(std::string, bool)>("ReadCommand").asyncCall([=](DBus::ValueOrError<std::string, bool, int32_t> msg) {
+ if(!msg)
+ {
+ LOG() << "Direct reading command failed (" << msg.getError().message << ")";
+ }
+ else if(callback)
+ {
+ mDirectReadingCallbacks.emplace(std::get<2>(msg), callback);
+ }
+ },
+ text,
+ discardable);
}
+ /**
+ * @copydoc Dali::Accessibility::Bridge::ForceDown()
+ */
void ForceDown() override
{
- if (data)
+ if(mData)
{
- if (data->currentlyHighlightedActor && data->highlightActor)
+ if(mData->mCurrentlyHighlightedActor && mData->mHighlightActor)
{
- data->currentlyHighlightedActor.Remove(data->highlightActor);
+ mData->mCurrentlyHighlightedActor.Remove(mData->mHighlightActor);
}
- data->currentlyHighlightedActor = {};
- data->highlightActor = {};
+ mData->mCurrentlyHighlightedActor = {};
+ mData->mHighlightActor = {};
+
+ mDisabledSignal.Emit();
}
- highlightedActor = {};
- highlightClearAction = {};
+ mHighlightedActor = {};
+ mHighlightClearAction = {};
BridgeAccessible::ForceDown();
- registryClient = {};
- directReadingClient = {};
- directReadingCallbacks.clear();
+ mRegistryClient = {};
+ mDirectReadingClient = {};
+ mDirectReadingCallbacks.clear();
+ mApplication.mChildren.clear();
+ }
+
+ void StopTimer()
+ {
+ if(mInitializeTimer)
+ {
+ mInitializeTimer.Stop();
+ }
+
+ if(mReadIsEnabledTimer)
+ {
+ mReadIsEnabledTimer.Stop();
+ }
+
+ if(mReadScreenReaderEnabledTimer)
+ {
+ mReadScreenReaderEnabledTimer.Stop();
+ }
}
+ /**
+ * @copydoc Dali::Accessibility::Bridge::Terminate()
+ */
void Terminate() override
{
- if (data)
+ if(mData)
{
- data->currentlyHighlightedActor = {};
- data->highlightActor = {};
+ mData->mCurrentlyHighlightedActor = {};
+ mData->mHighlightActor = {};
}
ForceDown();
- listenOnAtspiEnabledSignalClient = {};
- dbusServer = {};
- con = {};
+ StopTimer();
+ if((NULL != mIdleCallback) && Dali::Adaptor::IsAvailable())
+ {
+ Dali::Adaptor::Get().RemoveIdle(mIdleCallback);
+ }
+ mAccessibilityStatusClient = {};
+ mDbusServer = {};
+ mConnectionPtr = {};
}
+ /**
+ * @copydoc Dali::Accessibility::Bridge::ForceUp()
+ */
ForceUpResult ForceUp() override
{
- if( BridgeAccessible::ForceUp() == ForceUpResult::ALREADY_UP )
+ if(BridgeAccessible::ForceUp() == ForceUpResult::ALREADY_UP)
{
return ForceUpResult::ALREADY_UP;
}
BridgeValue::RegisterInterfaces();
BridgeText::RegisterInterfaces();
BridgeEditableText::RegisterInterfaces();
+ BridgeSelection::RegisterInterfaces();
+ BridgeApplication::RegisterInterfaces();
+
+ RegisterOnBridge(&mApplication);
- RegisterOnBridge( &application );
+ mRegistryClient = {AtspiDbusNameRegistry, AtspiDbusPathDec, AtspiDbusInterfaceDec, mConnectionPtr};
+ mDirectReadingClient = DBus::DBusClient{DirectReadingDBusName, DirectReadingDBusPath, DirectReadingDBusInterface, mConnectionPtr};
- registryClient = { AtspiDbusNameRegistry, AtspiDbusPathDec, AtspiDbusInterfaceDec, con };
- directReadingClient = DBus::DBusClient{ DirectReadingDBusName, DirectReadingDBusPath, DirectReadingDBusInterface, con };
- directReadingClient.addSignal< void(int32_t, std::string) >( "ReadingStateChanged", [=]( int32_t id, std::string readingState )
+ mDirectReadingClient.addSignal<void(int32_t, std::string)>("ReadingStateChanged", [=](int32_t id, std::string readingState) {
+ auto it = mDirectReadingCallbacks.find(id);
+ if(it != mDirectReadingCallbacks.end())
{
- auto it = directReadingCallbacks.find( id );
- if (it != directReadingCallbacks.end())
+ it->second(readingState);
+ if(readingState != "ReadingPaused" && readingState != "ReadingResumed" && readingState != "ReadingStarted")
{
- it->second( readingState );
- if (readingState != "ReadingPaused" && readingState != "ReadingResumed" && readingState != "ReadingStarted")
- directReadingCallbacks.erase( it );
+ mDirectReadingCallbacks.erase(it);
}
}
- );
+ });
- auto proxy = DBus::DBusClient{AtspiDbusNameRegistry, AtspiDbusPathRoot, AtspiDbusInterfaceSocket, con};
+ auto proxy = DBus::DBusClient{AtspiDbusNameRegistry, AtspiDbusPathRoot, AtspiDbusInterfaceSocket, mConnectionPtr};
Address root{"", "root"};
- auto res = proxy.method< Address( Address ) >( "Embed" ).call( root );
- if (!res)
+ auto res = proxy.method<Address(Address)>("Embed").call(root);
+ if(!res)
{
LOG() << "Call to Embed failed: " << res.getError().message;
}
- assert( res );
- application.parent.SetAddress( std::move( std::get< 0 >( res ) ) );
- if (isShown)
+ assert(res);
+
+ mApplication.mParent.SetAddress(std::move(std::get<0>(res)));
+
+ mEnabledSignal.Emit();
+
+ return ForceUpResult::JUST_STARTED;
+ }
+
+ /**
+ * @brief Sends a signal to dbus that the window is shown.
+ *
+ * @param[in] window The window to be shown
+ * @see Accessible::EmitShowing() and BridgeObject::EmitStateChanged()
+ */
+ void EmitShown(Dali::Window window)
+ {
+ auto windowAccessible = mApplication.GetWindowAccessible(window);
+ if(windowAccessible)
{
- EmitActivate();
+ windowAccessible->EmitShowing(true);
}
- return ForceUpResult::JUST_STARTED;
}
- void EmitActivate()
+ /**
+ * @brief Sends a signal to dbus that the window is hidden.
+ *
+ * @param[in] window The window to be hidden
+ * @see Accessible::EmitShowing() and BridgeObject::EmitStateChanged()
+ */
+ void EmitHidden(Dali::Window window)
{
- auto win = application.getActiveWindow();
- if (win)
+ auto windowAccessible = mApplication.GetWindowAccessible(window);
+ if(windowAccessible)
{
- win->Emit( WindowEvent::ACTIVATE, 0 );
+ windowAccessible->EmitShowing(false);
}
}
- void EmitDeactivate()
+ /**
+ * @brief Sends a signal to dbus that the window is activated.
+ *
+ * @param[in] window The window to be activated
+ * @see BridgeObject::Emit()
+ */
+ void EmitActivate(Dali::Window window)
{
- auto win = application.getActiveWindow();
- if (win)
+ auto windowAccessible = mApplication.GetWindowAccessible(window);
+ if(windowAccessible)
{
- win->Emit( WindowEvent::DEACTIVATE, 0 );
+ windowAccessible->Emit(WindowEvent::ACTIVATE, 0);
}
}
- void ApplicationHidden() override
+ /**
+ * @brief Sends a signal to dbus that the window is deactivated.
+ *
+ * @param[in] window The window to be deactivated
+ * @see BridgeObject::Emit()
+ */
+ void EmitDeactivate(Dali::Window window)
{
- if ( isShown && IsUp() )
+ auto windowAccessible = mApplication.GetWindowAccessible(window);
+ if(windowAccessible)
{
- EmitDeactivate();
+ windowAccessible->Emit(WindowEvent::DEACTIVATE, 0);
}
- isShown = false;
}
- void ApplicationShown() override
+ /**
+ * @copydoc Dali::Accessibility::Bridge::WindowShown()
+ */
+ void WindowShown(Dali::Window window) override
{
- if ( !isShown && IsUp() )
+ if(!mIsShown && IsUp())
{
- EmitActivate();
+ EmitShown(window);
}
- isShown = true;
+ mIsShown = true;
}
- void Initialize() override
+ /**
+ * @copydoc Dali::Accessibility::Bridge::WindowHidden()
+ */
+ void WindowHidden(Dali::Window window) override
+ {
+ if(mIsShown && IsUp())
+ {
+ EmitHidden(window);
+ }
+ mIsShown = false;
+ }
+
+ /**
+ * @copydoc Dali::Accessibility::Bridge::WindowFocused()
+ */
+ void WindowFocused(Dali::Window window) override
+ {
+ if(mIsShown && IsUp())
+ {
+ EmitActivate(window);
+ }
+ }
+
+ /**
+ * @copydoc Dali::Accessibility::Bridge::WindowUnfocused()
+ */
+ void WindowUnfocused(Dali::Window window) override
+ {
+ if(mIsShown && IsUp())
+ {
+ EmitDeactivate(window);
+ }
+ }
+
+ /**
+ * @copydoc Dali::Accessibility::Bridge::SuppressScreenReader()
+ */
+ void SuppressScreenReader(bool suppress) override
+ {
+ if(mIsScreenReaderSuppressed == suppress)
+ {
+ return;
+ }
+ mIsScreenReaderSuppressed = suppress;
+ ReadScreenReaderEnabledProperty();
+ }
+
+ bool ReadIsEnabledTimerCallback()
+ {
+ ReadIsEnabledProperty();
+ return false;
+ }
+
+ void ReadIsEnabledProperty()
+ {
+ mAccessibilityStatusClient.property<bool>("IsEnabled").asyncGet([this](DBus::ValueOrError<bool> msg) {
+ if(!msg)
+ {
+ DALI_LOG_ERROR("Get IsEnabled property error: %s\n", msg.getError().message.c_str());
+ if(msg.getError().errorType == DBus::ErrorType::INVALID_REPLY)
+ {
+ if(!mReadIsEnabledTimer)
+ {
+ mReadIsEnabledTimer = Dali::Timer::New(RETRY_INTERVAL);
+ mReadIsEnabledTimer.TickSignal().Connect(this, &BridgeImpl::ReadIsEnabledTimerCallback);
+ }
+ mReadIsEnabledTimer.Start();
+ }
+ return;
+ }
+ mIsEnabled = std::get<0>(msg);
+ if((!mIsScreenReaderSuppressed && mIsScreenReaderEnabled) || mIsEnabled)
+ {
+ ForceUp();
+ }
+ else
+ {
+ ForceDown();
+ }
+ });
+ }
+
+ void ListenIsEnabledProperty()
+ {
+ mAccessibilityStatusClient.addPropertyChangedEvent<bool>("IsEnabled", [this](bool res) {
+ mIsEnabled = res;
+ if(mIsScreenReaderEnabled || mIsEnabled)
+ {
+ ForceUp();
+ }
+ else
+ {
+ ForceDown();
+ }
+ });
+ }
+
+ bool ReadScreenReaderEnabledTimerCallback()
+ {
+ ReadScreenReaderEnabledProperty();
+ return false;
+ }
+
+ void ReadScreenReaderEnabledProperty()
+ {
+ // can be true because of SuppressScreenReader before init
+ if (!mAccessibilityStatusClient)
+ {
+ return;
+ }
+
+ mAccessibilityStatusClient.property<bool>("ScreenReaderEnabled").asyncGet([this](DBus::ValueOrError<bool> msg) {
+ if(!msg)
+ {
+ DALI_LOG_ERROR("Get ScreenReaderEnabled property error: %s\n", msg.getError().message.c_str());
+ if(msg.getError().errorType == DBus::ErrorType::INVALID_REPLY)
+ {
+ if(!mReadScreenReaderEnabledTimer)
+ {
+ mReadScreenReaderEnabledTimer = Dali::Timer::New(RETRY_INTERVAL);
+ mReadScreenReaderEnabledTimer.TickSignal().Connect(this, &BridgeImpl::ReadScreenReaderEnabledTimerCallback);
+ }
+ mReadScreenReaderEnabledTimer.Start();
+ }
+ return;
+ }
+ mIsScreenReaderEnabled = std::get<0>(msg);
+ if((!mIsScreenReaderSuppressed && mIsScreenReaderEnabled) || mIsEnabled)
+ {
+ ForceUp();
+ }
+ else
+ {
+ ForceDown();
+ }
+ });
+ }
+
+ void ListenScreenReaderEnabledProperty()
{
- auto req = DBus::DBusClient{A11yDbusName, A11yDbusPath, A11yDbusStatusInterface, DBus::ConnectionType::SESSION};
- auto p = req.property< bool >( "ScreenReaderEnabled" ).get();
- if( p )
+ mAccessibilityStatusClient.addPropertyChangedEvent<bool>("ScreenReaderEnabled", [this](bool res) {
+ mIsScreenReaderEnabled = res;
+ if((!mIsScreenReaderSuppressed && mIsScreenReaderEnabled) || mIsEnabled)
+ {
+ ForceUp();
+ }
+ else
+ {
+ ForceDown();
+ }
+ });
+ }
+
+ void ReadAndListenProperties()
+ {
+ ReadIsEnabledProperty();
+ ListenIsEnabledProperty();
+
+ ReadScreenReaderEnabledProperty();
+ ListenScreenReaderEnabledProperty();
+ }
+
+ bool InitializeAccessibilityStatusClient()
+ {
+ mAccessibilityStatusClient = DBus::DBusClient{A11yDbusName, A11yDbusPath, A11yDbusStatusInterface, DBus::ConnectionType::SESSION};
+
+ if (!mAccessibilityStatusClient)
+ {
+ DALI_LOG_ERROR("Accessibility Status DbusClient is not ready\n");
+ return false;
+ }
+
+ return true;
+ }
+
+ bool InitializeTimerCallback()
+ {
+ if ( InitializeAccessibilityStatusClient() )
+ {
+ ReadAndListenProperties();
+ return false;
+ }
+ return true;
+ }
+
+ bool OnIdleSignal()
+ {
+ if ( InitializeAccessibilityStatusClient() )
+ {
+ ReadAndListenProperties();
+ mIdleCallback = NULL;
+ return false;
+ }
+
+ if(!mInitializeTimer)
{
- screenReaderEnabled = std::get< 0 >( p );
+ mInitializeTimer = Dali::Timer::New(RETRY_INTERVAL);
+ mInitializeTimer.TickSignal().Connect(this, &BridgeImpl::InitializeTimerCallback);
}
- p = req.property< bool >( "IsEnabled" ).get();
- if( p )
+ mInitializeTimer.Start();
+
+ mIdleCallback = NULL;
+ return false;
+ }
+
+ /**
+ * @copydoc Dali::Accessibility::Bridge::Initialize()
+ */
+ void Initialize() override
+ {
+ if ( InitializeAccessibilityStatusClient() )
{
- isEnabled = std::get< 0 >( p );
+ ReadAndListenProperties();
+ return;
}
- if( screenReaderEnabled || isEnabled )
+
+ // Initialize failed. Try it again on Idle
+ if( Dali::Adaptor::IsAvailable() )
{
- ForceUp();
+ Dali::Adaptor& adaptor = Dali::Adaptor::Get();
+ if( NULL == mIdleCallback )
+ {
+ mIdleCallback = MakeCallback( this, &BridgeImpl::OnIdleSignal );
+ adaptor.AddIdle( mIdleCallback, true );
+ }
}
}
- bool GetScreenReaderEnabled()
+ /**
+ * @copydoc Dali::Accessibility::Bridge::GetScreenReaderEnabled()
+ */
+ bool GetScreenReaderEnabled() override
{
- return screenReaderEnabled;
+ return mIsScreenReaderEnabled;
}
- bool GetIsEnabled()
+ /**
+ * @copydoc Dali::Accessibility::Bridge::IsEnabled()
+ */
+ bool IsEnabled() override
{
- return isEnabled;
+ return mIsEnabled;
}
+}; // BridgeImpl
+
+namespace // unnamed namespace
+{
-};
+bool INITIALIZED_BRIDGE = false;
+
+/**
+ * @brief Creates BridgeImpl instance.
+ *
+ * @return The BridgeImpl instance
+ * @note This method is to check environment variable first. If ATSPI is disable using env, it returns dummy bridge instance.
+ */
+Bridge* CreateBridge()
+{
+ INITIALIZED_BRIDGE = true;
+
+ try
+ {
+ /* check environment variable first */
+ const char* envAtspiDisabled = Dali::EnvironmentVariable::GetEnvironmentVariable(DALI_ENV_DISABLE_ATSPI);
+ if(envAtspiDisabled && std::atoi(envAtspiDisabled) != 0)
+ {
+ return Dali::Accessibility::DummyBridge::GetInstance();
+ }
+
+ return new BridgeImpl;
+ }
+ catch(const std::exception&)
+ {
+ DALI_LOG_ERROR("Failed to initialize AT-SPI bridge");
+ return Dali::Accessibility::DummyBridge::GetInstance();
+ }
+}
+
+} // unnamed namespace
+
+// Dali::Accessibility::Bridge class implementation
Bridge* Bridge::GetCurrentBridge()
{
- static BridgeImpl *bridge = new BridgeImpl;
- return bridge;
+ static Bridge* bridge;
+
+ if(bridge)
+ {
+ return bridge;
+ }
+ else if(mAutoInitState == AutoInitState::ENABLED)
+ {
+ bridge = CreateBridge();
+
+ /* check environment variable for suppressing screen-reader */
+ const char* envSuppressScreenReader = Dali::EnvironmentVariable::GetEnvironmentVariable(DALI_ENV_SUPPRESS_SCREEN_READER);
+ if(envSuppressScreenReader && std::atoi(envSuppressScreenReader) != 0)
+ {
+ bridge->SuppressScreenReader(true);
+ }
+
+ return bridge;
+ }
+
+ return Dali::Accessibility::DummyBridge::GetInstance();
+}
+
+void Bridge::DisableAutoInit()
+{
+ if(INITIALIZED_BRIDGE)
+ {
+ DALI_LOG_ERROR("Bridge::DisableAutoInit() called after bridge auto-initialization");
+ }
+
+ mAutoInitState = AutoInitState::DISABLED;
}
+void Bridge::EnableAutoInit()
+{
+ mAutoInitState = AutoInitState::ENABLED;
+
+ if(INITIALIZED_BRIDGE)
+ {
+ return;
+ }
+
+ auto rootLayer = Dali::Stage::GetCurrent().GetRootLayer(); // A root layer of the default window.
+ auto window = Dali::DevelWindow::Get(rootLayer);
+ auto applicationName = Dali::Internal::Adaptor::Adaptor::GetApplicationPackageName();
+
+ auto accessible = Accessibility::Accessible::Get(rootLayer, true);
+
+ auto* bridge = Bridge::GetCurrentBridge();
+ bridge->AddTopLevelWindow(accessible);
+ bridge->SetApplicationName(applicationName);
+ bridge->Initialize();
+
+ if(window && window.IsVisible())
+ {
+ bridge->WindowShown(window);
+ }
+}
projects / platform / core / uifw / dali-adaptor.git / blobdiff