Tizen Native API
4.0
|
API for widget viewer (widget screen, home screen, ...).
#include <widget_viewer_evas.h>
Tizen Platform supports development of Widget Viewer Application. Many kinds of widgets can be installed on the Tizen Platform enhanced devices. Also it could be used by user via some kinds of viewer applications. This document will show you what kinds of APIs are existing and how to use them. First of all, the Tizen Platform uses the EFL as a core UIFW. So this API set is also based on the EFL.
Functions | |
int | widget_viewer_evas_init (Evas_Object *win) |
Initializes the widget system. | |
int | widget_viewer_evas_fini (void) |
Finalizes the widget system. | |
Evas_Object * | widget_viewer_evas_add_widget (Evas_Object *parent, const char *widget_id, const char *content_info, double period) |
Creates a new widget object. | |
int | widget_viewer_evas_notify_resumed_status_of_viewer (void) |
Notifies the status of the viewer to all providers. | |
int | widget_viewer_evas_notify_paused_status_of_viewer (void) |
Notifies the status of the viewer to all providers. | |
int | widget_viewer_evas_notify_orientation_of_viewer (int orientation) |
Notifies the orientation of the viewer to all providers. | |
int | widget_viewer_evas_pause_widget (Evas_Object *widget) |
Pauses given widget. | |
int | widget_viewer_evas_resume_widget (Evas_Object *widget) |
Resumes given widget. | |
int | widget_viewer_evas_set_option (widget_evas_conf_e type, int value) |
Changes the configurable values of widget system. | |
const char * | widget_viewer_evas_get_content_info (Evas_Object *widget) |
Gets content string of widget. | |
const char * | widget_viewer_evas_get_title_string (Evas_Object *widget) |
Gets summarized string of the widget content for accessibility. | |
const char * | widget_viewer_evas_get_widget_id (Evas_Object *widget) |
Gets the ID of the widget. | |
double | widget_viewer_evas_get_period (Evas_Object *widget) |
Gets the update period of the widget. | |
void | widget_viewer_evas_cancel_click_event (Evas_Object *widget) |
Cancels click event procedure. | |
void | widget_viewer_evas_disable_preview (Evas_Object *widget) |
Hides the preview of the widget. | |
void | widget_viewer_evas_disable_overlay_text (Evas_Object *widget) |
Hides the help text of the widget. | |
void | widget_viewer_evas_disable_loading (Evas_Object *widget) |
Hides the loading message of the widget. | |
int | widget_viewer_evas_feed_mouse_up_event (Evas_Object *widget) |
Feeds the mouse_up event to the provider of the widget. | |
void | widget_viewer_evas_activate_faulted_widget (Evas_Object *widget) |
Activate a widget in faulted state. | |
bool | widget_viewer_evas_is_faulted (Evas_Object *widget) |
Checks whether the widget is faulted. | |
int | widget_viewer_evas_freeze_visibility (Evas_Object *widget, widget_visibility_status_e status) |
Freezes visibility of the widget. | |
int | widget_viewer_evas_thaw_visibility (Evas_Object *widget) |
Thaws visibility of the widget. | |
bool | widget_viewer_evas_is_visibility_frozen (Evas_Object *widget) |
Gets the frozen state of visibility option. | |
bool | widget_viewer_evas_is_widget (Evas_Object *widget) |
Validate the object, whether it is a widget object or not. | |
void | widget_viewer_evas_set_permanent_delete (Evas_Object *widget, int flag) |
Before deleting a widget, set the deletion mode. | |
const char * | widget_viewer_evas_get_widget_instance_id (Evas_Object *widget) |
Gets the widget object's instance ID. | |
Typedefs | |
typedef struct widget_evas_event_info | widget_evas_event_info_s |
Data structure which will be sent as a parameter of smart callback for signals WIDGET_SMART_SIGNAL_XXX. | |
typedef enum widget_visibility_status | widget_visibility_status_e |
Enumerations for setting visibility status of a widget. | |
typedef enum widget_evas_conf | widget_evas_conf_e |
Enumeration for configuration keys. | |
Defines | |
#define | WIDGET_VIEWER_EVAS_DEFAULT_PERIOD -1.0f |
Definition for default refresh interval of widgets. | |
#define | WIDGET_SMART_SIGNAL_WIDGET_CREATE_ABORTED "widget,create,aborted" |
Event names for smart callback of widget events. You can listen some events from widget by calling evas_object_smart_callback_add. | |
#define | WIDGET_SMART_SIGNAL_WIDGET_CREATED "widget,created" |
#define | WIDGET_SMART_SIGNAL_WIDGET_RESIZE_ABORTED "widget,resize,aborted" |
#define | WIDGET_SMART_SIGNAL_WIDGET_RESIZED "widget,resized" |
#define | WIDGET_SMART_SIGNAL_WIDGET_FAULTED "widget,faulted" |
#define | WIDGET_SMART_SIGNAL_UPDATED "updated" |
#define | WIDGET_SMART_SIGNAL_EXTRA_INFO_UPDATED "info,updated" |
#define | WIDGET_SMART_SIGNAL_PROVIDER_DISCONNECTED "provider,disconnected" |
#define | WIDGET_SMART_SIGNAL_CONTROL_SCROLLER "control,scroller" |
#define | WIDGET_SMART_SIGNAL_WIDGET_DELETED "widget,deleted" |
#define | WIDGET_SMART_SIGNAL_PERIOD_CHANGED "widget,period,changed" |
#define WIDGET_SMART_SIGNAL_CONTROL_SCROLLER "control,scroller" |
Control Scroller
#define WIDGET_SMART_SIGNAL_EXTRA_INFO_UPDATED "info,updated" |
Widget extra info is updated
#define WIDGET_SMART_SIGNAL_PERIOD_CHANGED "widget,period,changed" |
Period is changed
#define WIDGET_SMART_SIGNAL_PROVIDER_DISCONNECTED "provider,disconnected" |
Provider is disconnected
#define WIDGET_SMART_SIGNAL_UPDATED "updated" |
Widget content is updated
#define WIDGET_SMART_SIGNAL_WIDGET_CREATE_ABORTED "widget,create,aborted" |
Event names for smart callback of widget events. You can listen some events from widget by calling evas_object_smart_callback_add.
#define WIDGET_SMART_SIGNAL_WIDGET_CREATED "widget,created" |
Widget is created
#define WIDGET_SMART_SIGNAL_WIDGET_DELETED "widget,deleted" |
Widget is deleted
#define WIDGET_SMART_SIGNAL_WIDGET_FAULTED "widget,faulted" |
Widget has faulted
#define WIDGET_SMART_SIGNAL_WIDGET_RESIZE_ABORTED "widget,resize,aborted" |
Resizing widget is aborted
#define WIDGET_SMART_SIGNAL_WIDGET_RESIZED "widget,resized" |
Widget is resized
#define WIDGET_VIEWER_EVAS_DEFAULT_PERIOD -1.0f |
Definition for default refresh interval of widgets.
typedef enum widget_evas_conf widget_evas_conf_e |
typedef struct widget_evas_event_info widget_evas_event_info_s |
Data structure which will be sent as a parameter of smart callback for signals WIDGET_SMART_SIGNAL_XXX.
typedef enum widget_visibility_status widget_visibility_status_e |
Enumerations for setting visibility status of a widget.
enum widget_evas_conf |
Enumeration for configuration keys.
Enumerations for setting visibility status of a widget.
void widget_viewer_evas_activate_faulted_widget | ( | Evas_Object * | widget | ) |
Activate a widget in faulted state.
A widget in faulted state MUST be activated before adding the widget.
[in] | widget | A widget object faulted |
WIDGET_ERROR_NONE | Successfully activate faulted widget |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
Evas_Object* widget_viewer_evas_add_widget | ( | Evas_Object * | parent, |
const char * | widget_id, | ||
const char * | content_info, | ||
double | period | ||
) |
Creates a new widget object.
[in] | parent | Evas Object of parent |
[in] | widget_id | Widget id |
[in] | content_info | Contents that will be given to the widget instance. This value is result of bundle_encode. |
[in] | period | Update period (WIDGET_VIEWER_EVAS_DEFAULT_PERIOD can be used for this; this argument will be used to specify the period of updating contents of a widget) |
WIDGET_ERROR_NONE | Successfully added |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Failed to create instance |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_MAX_EXCEEDED | Maximum number of instances exceeded |
void widget_viewer_evas_cancel_click_event | ( | Evas_Object * | widget | ) |
Cancels click event procedure.
If you call this function after feeding the mouse_down(or mouse_set) event, the widget will get ON_HOLD events.
If a widget gets ON_HOLD event, it will not do anything even if you feed mouse_up(or mouse_unset) event.
[in] | widget | A widget object |
WIDGET_ERROR_NONE | Successfully get period |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
void widget_viewer_evas_disable_loading | ( | Evas_Object * | widget | ) |
Hides the loading message of the widget.
If you disable it, there is no preview & help text while creating a widget object.
[in] | widget | A widget object |
WIDGET_ERROR_NONE | Successfully disabled loading text |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
void widget_viewer_evas_disable_overlay_text | ( | Evas_Object * | widget | ) |
Hides the help text of the widget.
While loading a box, hide the help text.
[in] | widget | A widget object |
WIDGET_ERROR_NONE | Successfully disabled overlay text |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
void widget_viewer_evas_disable_preview | ( | Evas_Object * | widget | ) |
Hides the preview of the widget.
[in] | widget | A widget object |
WIDGET_ERROR_NONE | Successfully disabled preview |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
int widget_viewer_evas_feed_mouse_up_event | ( | Evas_Object * | widget | ) |
Feeds the mouse_up event to the provider of the widget.
This is very similar with widget_viewer_evas_cancel_click(), but this will sends mouse_up event explicitly.
Also feed the ON_HOLD event before feeds mouse_up event.
[in] | widget | a widget object |
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | if success |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
int widget_viewer_evas_fini | ( | void | ) |
Finalizes the widget system.
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_FAULT | Unrecoverable error occurred |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
int widget_viewer_evas_freeze_visibility | ( | Evas_Object * | widget, |
widget_visibility_status_e | status | ||
) |
Freezes visibility of the widget.
If you don't want to change the visibility automatically, freeze it.
The visibility will not be changed even though a box disappeared(hidden)/displayed(shown) from/on the screen.
[in] | widget | A widget object |
[in] | status | A visibility status of the widget |
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
const char* widget_viewer_evas_get_content_info | ( | Evas_Object * | widget | ) |
Gets content string of widget.
This string can be used for creating contents of widget again after rebooting a device or it can be recovered from crash(abnormal status).
[in] | widget | A widget object |
NULL | if there is no specific content string |
WIDGET_ERROR_NONE | Successfully get content string |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
double widget_viewer_evas_get_period | ( | Evas_Object * | widget | ) |
Gets the update period of the widget.
[in] | widget | A widget object |
The | update interval of the widget |
WIDGET_ERROR_NONE | Successfully get period |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
const char* widget_viewer_evas_get_title_string | ( | Evas_Object * | widget | ) |
Gets summarized string of the widget content for accessibility.
If the accessibility feature is turned On, a viewer can use this text to describe the widget.
[in] | widget | A widget object |
NULL | if there is no summarized text for content of given widget |
WIDGET_ERROR_NONE | Successfully get title string |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
const char* widget_viewer_evas_get_widget_id | ( | Evas_Object * | widget | ) |
Gets the ID of the widget.
[in] | widget | A widget object |
NULL | if an error occurred and you can get the reason of failure using get_last_result() |
WIDGET_ERROR_NONE | Successfully get widget ID |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
const char* widget_viewer_evas_get_widget_instance_id | ( | Evas_Object * | widget | ) |
Gets the widget object's instance ID.
[in] | widget | A widget object |
WIDGET_ERROR_NONE | Successfully retrieved the widget instance ID |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_FAULT | Widget is not ready |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
int widget_viewer_evas_init | ( | Evas_Object * | win | ) |
Initializes the widget system.
[in] | win | Window object |
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_ALREADY_EXIST | Already initialized |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
bool widget_viewer_evas_is_faulted | ( | Evas_Object * | widget | ) |
Checks whether the widget is faulted.
[in] | widget | A widget object |
True | for faulted state |
False | for not faulted state |
WIDGET_ERROR_NONE | Successfully get the faulted state of the widget |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
bool widget_viewer_evas_is_visibility_frozen | ( | Evas_Object * | widget | ) |
Gets the frozen state of visibility option.
[in] | widget | A widget object |
True | for frozen state |
False | for not frozen state |
WIDGET_ERROR_NONE | Successfully get the state of visibility |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
bool widget_viewer_evas_is_widget | ( | Evas_Object * | widget | ) |
Validate the object, whether it is a widget object or not.
[in] | widget | A widget object |
True | this is a widget |
False | this is not a widget |
WIDGET_ERROR_NONE | Successfully get result of validation |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
int widget_viewer_evas_notify_orientation_of_viewer | ( | int | orientation | ) |
Notifies the orientation of the viewer to all providers.
If you call this, all providers will gets "rotated" event.
[in] | orientation | Orientation of viewer |
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_FAULT | If it failed to send state (resumed) info |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
int widget_viewer_evas_notify_paused_status_of_viewer | ( | void | ) |
Notifies the status of the viewer to all providers.
If you call this, all providers will gets "paused" event.
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_FAULT | If it failed to send state (resumed) info |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
int widget_viewer_evas_notify_resumed_status_of_viewer | ( | void | ) |
Notifies the status of the viewer to all providers.
If you call this, all providers will gets "resumed" event.
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_FAULT | If it failed to send state (paused) info |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
int widget_viewer_evas_pause_widget | ( | Evas_Object * | widget | ) |
Pauses given widget.
[in] | widget | A widget object |
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_FAULT | If it failed to send state (resumed) info |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_DISABLED | Widget is frozen by widget_viewer_evas_freeze_visibility() |
int widget_viewer_evas_resume_widget | ( | Evas_Object * | widget | ) |
Resumes given widget.
[in] | widget | a widget object |
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | If it failed to send state (resumed) info |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_DISABLED | Widget is frozen by widget_viewer_evas_freeze_visibility() |
int widget_viewer_evas_set_option | ( | widget_evas_conf_e | type, |
int | value | ||
) |
Changes the configurable values of widget system.
[in] | type | Configuration item |
[in] | value | Its value |
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
void widget_viewer_evas_set_permanent_delete | ( | Evas_Object * | widget, |
int | flag | ||
) |
Before deleting a widget, set the deletion mode.
[in] | widget | A widget object which will be deleted soon |
[in] | flag | Pass 1 if you delete this widget instance permanently, or pass 0 if you want to keep it and it will be re-created soon |
WIDGET_ERROR_NONE | Successfully set the flag |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |
int widget_viewer_evas_thaw_visibility | ( | Evas_Object * | widget | ) |
Thaws visibility of the widget.
If you want to let the visibility change automatically again, call this function.
[in] | widget | A widget object |
0
on success, otherwise a negative error value WIDGET_ERROR_NONE | If success |
WIDGET_ERROR_INVALID_PARAMETER | Invalid argument |
WIDGET_ERROR_FAULT | Not initialized |
WIDGET_ERROR_NOT_SUPPORTED | Not supported |
WIDGET_ERROR_PERMISSION_DENIED | Permission denied |