--- /dev/null
+/*
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef __EFL_ASSIST_SCREEN_READER_H__
+#define __EFL_ASSIST_SCREEN_READER_H__
+
+#include <Elementary.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Set an application window property whether the application supports screen reader or not.
+ *
+ * @return ret The return value that indicates this function works properly or not.
+ * If this function works without error, the ret will be EINA_TRUE.
+ *
+ * @param[in] win The window(elm_win) object of the application.
+ * @param[in] support The property value that will set to the windonw(elm_win).
+ *
+ * @brief This function sets an application window property which indicates the application
+ * supports screen reader or not.
+ */
+EAPI Eina_Bool ea_screen_reader_support_set(Evas_Object *win, Eina_Bool support);
+
+/**
+ * Get an application window property whether the application supports screen reader or not.
+ *
+ * @return property The property value that an application has currently.
+ *
+ * @brief This function gets an application window property which indicates the application
+ * supports screen reader or not.
+ */
+EAPI Eina_Bool ea_screen_reader_support_get();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __EFL_ASSIST_SCREEN_READER_H__ */
--- /dev/null
+#include "efl_assist.h"
+#include "efl_assist_private.h"
+#include <Ecore_X.h>
+#include <vconf.h>
+#include <tts.h>
+#define UNAVAILABLE_TEXT "Screen reader is unavailable during using this application. You can press home or back key to go back to home screen."
+
+static tts_h tts = NULL;
+
+static void _tts_shutdown(void)
+{
+ int ret = 0;
+ if (tts)
+ {
+ /* check current state */
+ tts_state_e state;
+ tts_get_state(tts, &state);
+ if (state == TTS_STATE_PLAYING || state == TTS_STATE_PAUSED)
+ {
+ ret = tts_stop(tts);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to stop handle : result(%d)", ret);
+ return;
+ }
+ }
+
+ /* it is possible to try to shutdown before the state is ready,
+ because tts_prepare(); works Asynchronously. see elm_modapi_init(): */
+ if (state == TTS_STATE_READY)
+ {
+ ret = tts_unprepare(tts);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to unprepare handle : result(%d)", ret);
+ return;
+ }
+
+ ret = tts_unset_state_changed_cb(tts);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to set callback : result(%d)", ret);
+ return;
+ }
+ }
+
+ ret = tts_destroy(tts);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to destroy handle : result(%d)", ret);
+ return;
+ }
+
+ if (tts) tts = NULL;
+ }
+}
+
+void _tts_state_changed_cb(tts_h tts, tts_state_e previous, tts_state_e current, void* data)
+{
+ int ret = 0;
+ int u_id = 0;
+
+ if (TTS_STATE_CREATED == previous && TTS_STATE_READY == current)
+ {
+ ret = tts_add_text(tts, UNAVAILABLE_TEXT, NULL, TTS_VOICE_TYPE_AUTO,
+ TTS_SPEED_AUTO, &u_id);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to add kept text : ret(%d)\n", ret);
+ }
+
+ ret = tts_play(tts);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to play TTS : ret(%d)\n", ret);
+ }
+ }
+}
+
+static void _tts_init(void)
+{
+ int ret = 0;
+
+ ret = tts_create(&tts);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to get handle : result(%d)", ret);
+ return;
+ }
+
+ ret = tts_set_state_changed_cb(tts, _tts_state_changed_cb, NULL);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to set callback : result(%d)", ret);
+ return;
+ }
+
+ ret = tts_set_mode(tts, TTS_MODE_SCREEN_READER);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to set mode : result(%d)", ret);
+ return;
+ }
+
+ ret = tts_prepare(tts);
+ if (TTS_ERROR_NONE != ret)
+ {
+ fprintf(stderr, "Fail to prepare handle : result(%d)", ret);
+ return;
+ }
+}
+
+static void _timeout_cb(void *data, Evas_Object *obj, void *event_info)
+{
+ Ecore_X_Window xwin;
+ unsigned int val;
+
+ xwin = elm_win_xwindow_get(data);
+ if (!xwin) return;
+
+ evas_object_del(obj);
+
+ val = 2;
+ ecore_x_window_prop_card32_set
+ (xwin, ECORE_X_ATOM_E_ILLUME_ACCESS_CONTROL, &val, 1);
+
+ _tts_shutdown();
+}
+
+EAPI Eina_Bool
+ea_screen_reader_support_set(Evas_Object *win, Eina_Bool support)
+{
+ Ecore_X_Window xwin;
+ unsigned int val;
+ int tts_val;
+ Evas_Object *base;
+ Evas_Object *body;
+ Evas_Object *popup;
+
+ if (vconf_get_bool(VCONFKEY_SETAPPL_ACCESSIBILITY_TTS, &tts_val) != 0)
+ return EINA_FALSE;
+
+ if (!tts_val) return EINA_FALSE;
+
+ if (!win) return EINA_FALSE;
+
+ xwin = elm_win_xwindow_get(win);
+ if (!xwin) return EINA_FALSE;
+
+ if (support)
+ {
+ val = 0;
+ elm_config_access_set(EINA_TRUE);
+
+ ecore_x_window_prop_card32_set
+ (xwin, ECORE_X_ATOM_E_ILLUME_ACCESS_CONTROL, &val, 1);
+ }
+ else
+ {
+ elm_config_access_set(EINA_FALSE);
+
+ popup = elm_popup_add(win);
+ evas_object_size_hint_weight_set(popup, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
+ elm_object_text_set(popup, UNAVAILABLE_TEXT);
+ elm_popup_timeout_set(popup, 12.0);
+ evas_object_smart_callback_add(popup, "timeout", _timeout_cb, win);
+
+ _tts_init();
+ evas_object_show(popup);
+ }
+
+ return EINA_TRUE;
+}
+
+EAPI Eina_Bool
+ea_screen_reader_support_get()
+{
+ return elm_config_access_get();
+}
projects / platform / core / uifw / efl-assist.git / commitdiff