Enumerations | Functions
Focus

An Elementary application has, at all times, one (and only one) focused object. More...

Enumerations

enum  Elm_Focus_Autoscroll_Mode {
  ELM_FOCUS_AUTOSCROLL_MODE_SHOW,
  ELM_FOCUS_AUTOSCROLL_MODE_NONE,
  ELM_FOCUS_AUTOSCROLL_MODE_BRING_IN
}
 Focus Autoscroll Mode. More...
 

Functions

Elm_Focus_Autoscroll_Mode elm_config_focus_autoscroll_mode_get (void)
 Get focus auto scroll mode. More...
 
void elm_config_focus_autoscroll_mode_set (Elm_Focus_Autoscroll_Mode mode)
 Set focus auto scroll mode. More...
 
Eina_Bool elm_config_focus_highlight_enabled_get (void)
 Get the enable status of the focus highlight. More...
 
void elm_config_focus_highlight_enabled_set (Eina_Bool enable)
 Set the enable status of the focus highlight. More...
 
Eina_Bool elm_config_focus_highlight_animate_get (void)
 Get the enable status of the focus highlight animation. More...
 
void elm_config_focus_highlight_animate_set (Eina_Bool animate)
 Set the enable status of the highlight animation. More...
 
Eina_Bool elm_config_focus_highlight_clip_disabled_get (void)
 Get the disable status of the focus highlight clip feature. More...
 
void elm_config_focus_highlight_clip_disabled_set (Eina_Bool disable)
 Set the disable status of the focus highlight clip feature. More...
 
Elm_Focus_Move_Policy elm_config_focus_move_policy_get (void)
 Get the focus movement policy. More...
 
void elm_config_focus_move_policy_set (Elm_Focus_Move_Policy policy)
 Set elementary focus movement policy. More...
 
Eina_Bool elm_config_item_select_on_focus_disabled_get (void)
 Get disable status of item select on focus feature. More...
 
void elm_config_item_select_on_focus_disabled_set (Eina_Bool disabled)
 Set the disable status of the item select on focus feature. More...
 
Eina_Bool elm_config_first_item_focus_on_first_focusin_get (void)
 Get status of first item focus on first focusin feature. More...
 
void elm_config_first_item_focus_on_first_focusin_set (Eina_Bool enabled)
 Set the first item focus on first focusin feature. More...
 
Eina_Bool elm_object_focus_get (const Evas_Object *obj)
 Get the whether an Elementary object has the focus or not. More...
 
void elm_object_focus_set (Evas_Object *obj, Eina_Bool focus)
 Set/unset focus to a given Elementary object. More...
 
void elm_object_focus_allow_set (Evas_Object *obj, Eina_Bool enable)
 Set the ability for an Elementary object to be focused. More...
 
Eina_Bool elm_object_focus_allow_get (const Evas_Object *obj)
 Get whether an Elementary object is focusable or not. More...
 
void elm_object_focus_custom_chain_set (Evas_Object *obj, Eina_List *objs)
 Set custom focus chain. More...
 
void elm_object_focus_custom_chain_unset (Evas_Object *obj)
 Unset a custom focus chain on a given Elementary widget. More...
 
const Eina_List * elm_object_focus_custom_chain_get (const Evas_Object *obj)
 Get custom focus chain. More...
 
void elm_object_focus_custom_chain_append (Evas_Object *obj, Evas_Object *child, Evas_Object *relative_child)
 Append object to custom focus chain. More...
 
void elm_object_focus_custom_chain_prepend (Evas_Object *obj, Evas_Object *child, Evas_Object *relative_child)
 Prepend object to custom focus chain. More...
 
void elm_object_focus_next (Evas_Object *obj, Elm_Focus_Direction dir)
 Give focus to next object in object tree. More...
 
Evas_Object * elm_object_focus_next_object_get (const Evas_Object *obj, Elm_Focus_Direction dir)
 Get next object which was set with specific focus direction. More...
 
void elm_object_focus_next_object_set (Evas_Object *obj, Evas_Object *next, Elm_Focus_Direction dir)
 Set next object with specific focus direction. More...
 
Evas_Object * elm_object_focused_object_get (const Evas_Object *obj)
 Get focused object in object tree. More...
 
void elm_object_tree_focus_allow_set (Evas_Object *obj, Eina_Bool focusable)
 Make the elementary object and its children to be focusable (or unfocusable). More...
 
Eina_Bool elm_object_tree_focus_allow_get (const Evas_Object *obj)
 Get whether an Elementary object and its children are focusable or not. More...
 
Eina_Bool elm_object_focus_highlight_style_set (Evas_Object *obj, const char *style)
 Set the focus highlight style to be used by a given widget. More...
 
const char * elm_object_focus_highlight_style_get (const Evas_Object *obj)
 Get the focus highlight style to be used by a given widget. More...
 
void elm_object_focus_move_policy_set (Evas_Object *obj, Elm_Focus_Move_Policy policy)
 Set the focus movement policy to a given Elementary object. More...
 
Elm_Focus_Move_Policy elm_object_focus_move_policy_get (const Evas_Object *obj)
 Get the focus movement policy from a given Elementary objet. More...
 
void elm_object_focus_region_show_mode_set (Evas_Object *obj, Elm_Focus_Region_Show_Mode mode)
 Set the focus region show mode to a given Elementary object. More...
 
Elm_Focus_Region_Show_Mode elm_object_focus_region_show_mode_get (const Evas_Object *obj)
 Get the focus region show mode to a given Elementary object. More...
 
Elm_Object_Itemelm_object_focused_item_get (const Evas_Object *obj)
 Get the focused object item. More...
 
Elm_Object_Itemelm_object_focus_next_item_get (const Evas_Object *obj, Elm_Focus_Direction dir)
 Get next object item which was set with specific focus direction. More...
 
void elm_object_focus_next_item_set (Evas_Object *obj, Elm_Object_Item *next_item, Elm_Focus_Direction dir)
 Set next object item with specific focus direction. More...
 
EINA_DEPRECATED void elm_object_focus (Evas_Object *obj)
 Make a given Elementary object the focused one. More...
 
EINA_DEPRECATED void elm_object_focus_cycle (Evas_Object *obj, Elm_Focus_Direction dir)
 Give focus to next object in object tree. More...
 
EINA_DEPRECATED void elm_object_unfocus (Evas_Object *obj)
 Remove the focus from an Elementary object. More...
 
EINA_DEPRECATED void elm_object_focus_direction_go (Evas_Object *obj, int x, int y)
 Give focus to near object in one direction. More...
 

Detailed Description

An Elementary application has, at all times, one (and only one) focused object.

This is what determines where the input events go to within the application's window. Also, focused objects can be decorated differently, in order to signal to the user where the input is, at a given moment.

Elementary applications also have the concept of focus chain: one can cycle through all the windows' focusable objects by input (tab key) or programmatically. The default focus chain for an application is the one define by the order in which the widgets where added in code. One will cycle through top level widgets, and, for each one containing sub-objects, cycle through them all, before returning to the level above. Elementary also allows one to set custom focus chains for their applications.

Besides the focused decoration a widget may exhibit, when it gets focus, Elementary has a global focus highlight object that can be enabled for a window. If one chooses to do so, this extra highlight effect will surround the current focused object, too.

Note
Some Elementary widgets are unfocusable, after creation, by their very nature: they are not meant to be interacted with input events, but are there just for visual purposes.

This example contemplates some of these functions.

Enumeration Type Documentation

Focus Autoscroll Mode.

Since
1.10
Enumerator
ELM_FOCUS_AUTOSCROLL_MODE_SHOW 

directly show the focused region or item automatically

ELM_FOCUS_AUTOSCROLL_MODE_NONE 

do not show the focused region or item automatically

ELM_FOCUS_AUTOSCROLL_MODE_BRING_IN 

bring_in the focused region or item automatically which might invole the scrolling

Function Documentation

Eina_Bool elm_config_first_item_focus_on_first_focusin_get ( void  )

Get status of first item focus on first focusin feature.

Returns
The first item focus on first focusin status
See also
elm_config_first_item_focus_on_first_focusin_set
Since
1.11
void elm_config_first_item_focus_on_first_focusin_set ( Eina_Bool  enabled)

Set the first item focus on first focusin feature.

Parameters
enabledfirst_item_focus_on_first_focusin if EINA_TRUE, enable otherwise
See also
elm_config_first_item_focus_on_first_focusin_get
Since
1.11
Elm_Focus_Autoscroll_Mode elm_config_focus_autoscroll_mode_get ( void  )

Get focus auto scroll mode.

When a region or an item is focused and it resides inside any scroller, elementary will automatically scroll the focused area to the visible viewport.

See also
elm_config_focus_autoscroll_mode_set()
Since
1.10
void elm_config_focus_autoscroll_mode_set ( Elm_Focus_Autoscroll_Mode  mode)

Set focus auto scroll mode.

Parameters
modefocus auto scroll mode. This can be one of the Elm_Focus_Autoscroll_Mode enum values.

When a region or an item is focused and it resides inside any scroller, elementary will automatically scroll the focused area to the visible viewport. Focus auto scroll mode is set to ELM_FOCUS_AUTOSCROLL_MODE_SHOW by default historically.

See also
elm_config_focus_autoscroll_mode_get()
Since
1.10
Eina_Bool elm_config_focus_highlight_animate_get ( void  )

Get the enable status of the focus highlight animation.

Returns
animate EINA_TRUE if the focus highlight animation is enabled, EINA_FALSE otherwise.

Get whether the focus highlight, if enabled, will animate its switch from one object to the next

See also
elm_config_focus_highlight_animate_set()
void elm_config_focus_highlight_animate_set ( Eina_Bool  animate)

Set the enable status of the highlight animation.

Parameters
animateEnable animation if EINA_TRUE, disable otherwise

Set whether the focus highlight, if enabled, will animate its switch from one object to the next

Note that it will take effect only to Elementary windows created after this is called.

See also
elm_config_focus_highlight_animate_get()
Eina_Bool elm_config_focus_highlight_clip_disabled_get ( void  )

Get the disable status of the focus highlight clip feature.

Returns
The focus highlight clip disable status

Get whether the focus highlight clip feature is disabled. If disabled return EINA_TRUE, else return EINA_FALSE. If the return is EINA_TRUE, focus highlight clip feature is not disabled so the focus highlight can be clipped.

See also
elm_config_focus_highlight_clip_disabled_set()
Since
1.10
void elm_config_focus_highlight_clip_disabled_set ( Eina_Bool  disable)

Set the disable status of the focus highlight clip feature.

Parameters
disableDisable focus highlight clip feature if EINA_TRUE, enable it otherwise.
See also
elm_config_focus_highlight_clip_disabled_get()
Since
1.10
Eina_Bool elm_config_focus_highlight_enabled_get ( void  )

Get the enable status of the focus highlight.

This gets whether the highlight on focused objects is enabled or not

Returns
enable EINA_TRUE if the focus highlight is enabled, EINA_FALSE otherwise.
See also
elm_config_focus_highlight_enabled_set()
void elm_config_focus_highlight_enabled_set ( Eina_Bool  enable)

Set the enable status of the focus highlight.

Parameters
enableEnable highlight if EINA_TRUE, disable otherwise

Set whether to show or not the highlight on focused objects

Note that it will take effect only to Elementary windows created after this is called.

See also
elm_config_focus_highlight_enabled_get()
Elm_Focus_Move_Policy elm_config_focus_move_policy_get ( void  )

Get the focus movement policy.

Returns
The focus movement policy

Get how the focus is moved to another object. It can be ELM_FOCUS_MOVE_POLICY_CLICK or ELM_FOCUS_MOVE_POLICY_IN. The first means elementary focus is moved on elementary object click. The second means elementary focus is moved on elementary object mouse in.

See also
elm_config_focus_move_policy_set()
Since
1.10
void elm_config_focus_move_policy_set ( Elm_Focus_Move_Policy  policy)

Set elementary focus movement policy.

Parameters
policyA policy to apply for the focus movement
See also
elm_config_focus_move_policy_get()
Since
1.10
Eina_Bool elm_config_item_select_on_focus_disabled_get ( void  )

Get disable status of item select on focus feature.

Returns
The item select on focus disable status
See also
elm_config_item_select_on_focus_disabled_set
Since
1.10
void elm_config_item_select_on_focus_disabled_set ( Eina_Bool  disabled)

Set the disable status of the item select on focus feature.

Parameters
disabledDisable item select on focus if EINA_TRUE, enable otherwise
See also
elm_config_item_select_on_focus_disabled_get
Since
1.10
EINA_DEPRECATED void elm_object_focus ( Evas_Object *  obj)

Make a given Elementary object the focused one.

Parameters
objThe Elementary object to make focused.
Note
This object, if it can handle focus, will take the focus away from the one who had it previously and will, for now on, be the one receiving input events.
See also
elm_object_focus_get()
Deprecated:
use elm_object_focus_set() instead.
Eina_Bool elm_object_focus_allow_get ( const Evas_Object *  obj)

Get whether an Elementary object is focusable or not.

Parameters
objThe Elementary object to operate on
Returns
EINA_TRUE if the object is allowed to be focused, EINA_FALSE if not (and on errors)
Note
Objects which are meant to be interacted with by input events are created able to be focused, by default. All the others are not.
void elm_object_focus_allow_set ( Evas_Object *  obj,
Eina_Bool  enable 
)

Set the ability for an Elementary object to be focused.

Parameters
objThe Elementary object to operate on
enableEINA_TRUE if the object can be focused, EINA_FALSE if not (and on errors)

This sets whether the object obj is able to take focus or not. Unfocusable objects do nothing when programmatically focused, being the nearest focusable parent object the one really getting focus. Also, when they receive mouse input, they will get the event, but not take away the focus from where it was previously.

Examples:
general_funcs_example.c.
void elm_object_focus_custom_chain_append ( Evas_Object *  obj,
Evas_Object *  child,
Evas_Object *  relative_child 
)

Append object to custom focus chain.

Note
If relative_child equal to NULL or not in custom chain, the object will be added in end.
On focus cycle, only will be evaluated children of this container.
Parameters
objThe container object
childThe child to be added in custom chain
relative_childThe relative object to position the child
const Eina_List* elm_object_focus_custom_chain_get ( const Evas_Object *  obj)

Get custom focus chain.

Parameters
objThe container object
void elm_object_focus_custom_chain_prepend ( Evas_Object *  obj,
Evas_Object *  child,
Evas_Object *  relative_child 
)

Prepend object to custom focus chain.

Note
If relative_child equal to NULL or not in custom chain, the object will be added in begin.
On focus cycle, only will be evaluated children of this container.
Parameters
objThe container object
childThe child to be added in custom chain
relative_childThe relative object to position the child
void elm_object_focus_custom_chain_set ( Evas_Object *  obj,
Eina_List *  objs 
)

Set custom focus chain.

This function overwrites any previous custom focus chain within the list of objects. The previous list will be deleted and this list will be managed by elementary. After it is set, don't modify it.

Note
On focus cycle, only will be evaluated children of this container.
Parameters
objThe container object
objsChain of objects to pass focus
void elm_object_focus_custom_chain_unset ( Evas_Object *  obj)

Unset a custom focus chain on a given Elementary widget.

Parameters
objThe container object to remove focus chain from

Any focus chain previously set on obj (for its child objects) is removed entirely after this call.

EINA_DEPRECATED void elm_object_focus_cycle ( Evas_Object *  obj,
Elm_Focus_Direction  dir 
)

Give focus to next object in object tree.

Give focus to next object in focus chain of one object sub-tree. If the last object of chain already have focus, the focus will go to the first object of chain.

Parameters
objThe object root of sub-tree
dirDirection to cycle the focus
Deprecated:
Use elm_object_focus_next() instead

References elm_object_focus_next().

EINA_DEPRECATED void elm_object_focus_direction_go ( Evas_Object *  obj,
int  x,
int  y 
)

Give focus to near object in one direction.

Give focus to near object in direction of one object. If none focusable object in given direction, the focus will not change.

Parameters
objThe reference object
xHorizontal component of direction to focus
yVertical component of direction to focus
Deprecated:
Support it later.
Eina_Bool elm_object_focus_get ( const Evas_Object *  obj)

Get the whether an Elementary object has the focus or not.

Parameters
objThe Elementary object to get the information from
Returns
EINA_TRUE, if the object is focused, EINA_FALSE if not (and on errors).
See also
elm_object_focus_set()
const char* elm_object_focus_highlight_style_get ( const Evas_Object *  obj)

Get the focus highlight style to be used by a given widget.

Parameters
objThe Elementary widget to query for its focus highlight style.
Returns
The focus highlight style name used by widget.
See also
elm_object_focus_highlight_style_set()
Since
1.9
Eina_Bool elm_object_focus_highlight_style_set ( Evas_Object *  obj,
const char *  style 
)

Set the focus highlight style to be used by a given widget.

Parameters
objThe Elementary widget for which focus style needs to be set.
styleThe name of the focus style to use on it.
Returns
EINA_TRUE on success, EINA_FALSE otherwise.
Note
This overrides the style which is set by elm_win_focus_highlight_style_set().
See also
elm_object_focus_highlight_style_get
Since
1.9
Elm_Focus_Move_Policy elm_object_focus_move_policy_get ( const Evas_Object *  obj)

Get the focus movement policy from a given Elementary objet.

Parameters
objThe Elementary widget to get the information from
Returns
The focus movement policy

Get how the focus is moved to the give Elementary object. It can be ELM_FOCUS_MOVE_POLICY_CLICK, ELM_FOCUS_MOVE_POLICY_IN, or ELM_FOCUS_MOVE_POLICY_KEY_ONLY. The first means elementary focus is moved on elementary object click. The second means elementary focus is moved on elementary object mouse in. The last means elementary focus is moved only by key input like Left, Right, Up, Down, Tab, or Shift+Tab.

See also
elm_object_focus_move_policy_set
Since
1.15
void elm_object_focus_move_policy_set ( Evas_Object *  obj,
Elm_Focus_Move_Policy  policy 
)

Set the focus movement policy to a given Elementary object.

Parameters
objThe Elementary object to operate on
policyA policy to apply for the focus movement
See also
elm_object_focus_move_policy_get
Since
1.15
void elm_object_focus_next ( Evas_Object *  obj,
Elm_Focus_Direction  dir 
)

Give focus to next object in object tree.

Give focus to next object in focus chain of one object sub-tree. If the last object of chain already have focus, the focus will go to the first object of chain.

Parameters
objThe object root of sub-tree
dirDirection to move the focus
See also
elm_object_focus_next_object_get(), elm_object_focus_next_object_set()

Referenced by elm_object_focus_cycle().

Elm_Object_Item* elm_object_focus_next_item_get ( const Evas_Object *  obj,
Elm_Focus_Direction  dir 
)

Get next object item which was set with specific focus direction.

Get next object item which was set by elm_object_focus_next_item_set with specific focus direction.

Parameters
objThe Elementary object
dirFocus direction
Returns
Focus next object item or NULL, if there is no focus next object item.
See also
elm_object_focus_next_item_set(), elm_object_focus_next()
Since
1.16
void elm_object_focus_next_item_set ( Evas_Object *  obj,
Elm_Object_Item next_item,
Elm_Focus_Direction  dir 
)

Set next object item with specific focus direction.

When focus next object item is set with specific focus direction, this object item will be the first candidate when finding next focusable object or item. If the focus next object item is set, it is preference to focus next object. Focus next object item can be registered with six directions that are previous, next, up, down, right, and left.

Parameters
objThe Elementary object
next_itemFocus next object item
dirFocus direction
See also
elm_object_focus_next_item_get(), elm_object_focus_next()
Since
1.16
Evas_Object* elm_object_focus_next_object_get ( const Evas_Object *  obj,
Elm_Focus_Direction  dir 
)

Get next object which was set with specific focus direction.

Get next object which was set by elm_object_focus_next_object_set with specific focus direction.

Parameters
objThe Elementary object
dirFocus direction
Returns
Focus next object or NULL, if there is no focus next object.
See also
elm_object_focus_next_object_set(), elm_object_focus_next()
Since
1.8
void elm_object_focus_next_object_set ( Evas_Object *  obj,
Evas_Object *  next,
Elm_Focus_Direction  dir 
)

Set next object with specific focus direction.

When focus next object is set with specific focus direction, this object will be the first candidate when finding next focusable object. Focus next object can be registered with six directions that are previous, next, up, down, right, and left.

Parameters
objThe Elementary object
nextFocus next object
dirFocus direction
See also
elm_object_focus_next_object_get(), elm_object_focus_next()
Since
1.8
Elm_Focus_Region_Show_Mode elm_object_focus_region_show_mode_get ( const Evas_Object *  obj)

Get the focus region show mode to a given Elementary object.

Parameters
objThe Elementary object to get the information from
Returns
The focus region shown mode
See also
elm_object_focus_region_show_mode_set
Since
1.16
void elm_object_focus_region_show_mode_set ( Evas_Object *  obj,
Elm_Focus_Region_Show_Mode  mode 
)

Set the focus region show mode to a given Elementary object.

Parameters
objThe Elementary object to operate on
modeA mode to show the focus region
See also
elm_object_focus_region_show_mode_get

When the focus is move to the object in scroller, it is scrolled to show the focus region as a widget. If the focus region want to be shown as an item, set the mode ELM_FOCUS_REGION_SHOW_ITEM. If then, it will be scrolled as an item.

Since
1.16
void elm_object_focus_set ( Evas_Object *  obj,
Eina_Bool  focus 
)

Set/unset focus to a given Elementary object.

Parameters
objThe Elementary object to operate on.
focusEINA_TRUE Set focus to a given object, EINA_FALSE Unset focus to a given object.
Note
When you set focus to this object, if it can handle focus, will take the focus away from the one who had it previously and will, for now on, be the one receiving input events. Unsetting focus will remove the focus from obj, passing it back to the previous element in the focus chain list.
Warning
Only visible object can get a focus. Call evas_object_show(o) before calling this API, if you want to give a focus to the evas object.
See also
elm_object_focus_get(), elm_object_focus_custom_chain_get()
Examples:
entry_example.c, general_funcs_example.c, glview_example_01.c, and web_example_02.c.

References elm_win_inlined_image_object_get().

Elm_Object_Item* elm_object_focused_item_get ( const Evas_Object *  obj)

Get the focused object item.

This returns the focused object item.

Parameters
objThe container object
Returns
The focused item, or NULL if none

The focused item can be unfocused with function elm_object_item_focus_set().

see () see ()

Since
1.10
Evas_Object* elm_object_focused_object_get ( const Evas_Object *  obj)

Get focused object in object tree.

This function returns current focused object in one object sub-tree.

Parameters
objThe object root of sub-tree
Returns
Current focused or NULL, if there is no focused object.
Since
1.8
Eina_Bool elm_object_tree_focus_allow_get ( const Evas_Object *  obj)

Get whether an Elementary object and its children are focusable or not.

Parameters
objThe Elementary object to get the information from
Returns
EINA_TRUE, if the tree is focusable, EINA_FALSE if not (and on errors).
See also
elm_object_tree_focus_allow_set()
void elm_object_tree_focus_allow_set ( Evas_Object *  obj,
Eina_Bool  focusable 
)

Make the elementary object and its children to be focusable (or unfocusable).

Parameters
objThe Elementary object to operate on
focusableEINA_TRUE for focusable, EINA_FALSE for unfocusable.

This sets whether the object obj and its children objects are able to take focus or not. If the tree is set as unfocusable, newest focused object which is not in this tree will get focus. This API can be helpful for an object to be deleted. When an object will be deleted soon, it and its children may not want to get focus (by focus reverting or by other focus controls). Then, just use this API before deleting.

See also
elm_object_tree_focus_allow_get()
EINA_DEPRECATED void elm_object_unfocus ( Evas_Object *  obj)

Remove the focus from an Elementary object.

Parameters
objThe Elementary to take focus from

This removes the focus from obj, passing it back to the previous element in the focus chain list.

See also
elm_object_focus() and elm_object_focus_custom_chain_get()
Deprecated:
use elm_object_focus_set() instead.