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import efl_ui;
struct Efl.Ui.Focus.Relations {
[[Structure holding the graph of relations between focussable objects.
@since 1.20
]]
right : list<Efl.Ui.Focus.Object>; [[List of objects on the right side]]
left : list<Efl.Ui.Focus.Object>; [[[List of objects on the left side]]
top : list<Efl.Ui.Focus.Object>; [[[List of objects above]]
down : list<Efl.Ui.Focus.Object>; [[[List of objects below]]
next : Efl.Ui.Focus.Object; [[[Next object]]
prev : Efl.Ui.Focus.Object; [[Previous object]]
parent : Efl.Ui.Focus.Object; [[Parent object]]
redirect : Efl.Ui.Focus.Manager; [[Redirect manager]]
node : Efl.Ui.Focus.Object; [[The node where this is the information from]]
logical : bool; [[$true if this node is only logical]]
position_in_history : int; [[The position in the history stack]]
}
struct Efl.Ui.Focus.Manager.Logical_End_Detail {
[[Structure holding the focus object with extra information on logical end
@since 1.21
]]
is_regular_end : bool; [[$true if logical end, $false otherwise]]
element : Efl.Ui.Focus.Object; [[Focus object element]]
}
interface Efl.Ui.Focus.Manager {
[[Calculates the directions of Efl.Ui.Focus.Direction
Each registered item will get a other registered object into each
direction, you can get those items for the currently focused item if
you call request move.
@since 1.20
]]
methods {
move {
[[Move the focus into the given direction.
This call flushes all changes.
This means all changes between the last flush and now are computed
]]
params {
direction : Efl.Ui.Focus.Direction; [[The direction to move to]]
}
return : Efl.Ui.Focus.Object; [[The element which is now focused]]
}
request_move {
[[Returns the object which would be the next object to focus in the
given direction.
]]
params {
direction : Efl.Ui.Focus.Direction; [[Direction to move focus]]
}
return : Efl.Ui.Focus.Object; [[Next object to focus]]
}
@property manager_focus {
[[The element which is currently focused by this manager
For the case focus is a logical child, then the item will go to the next none logical element. If there is none, focus will stay where it is right now.
]]
values {
focus : Efl.Ui.Focus.Object @nonull; [[Focused element]]
}
}
@property redirect {
[[Add a another manager to serve the move requests.
If this value is set, all move requests are redirected to this
manager object. Set it to $null once nothing should be redirected
anymore.
]]
values {
redirect : Efl.Ui.Focus.Manager; [[The redirect manager.]]
}
}
@property border_elements {
[[The list of elements which are at the border of the graph.
This means one of the relations right,left or down,up are not set.
This call flushes all changes. See @Efl.Ui.Focus.Manager.move
]]
get {}
values {
border_elements : iterator<Efl.Ui.Focus.Object>; [[An iterator
over the border objects.]]
}
}
@property root {
[[Root node for all logical subtrees.
This property can only be set once.
]]
set {
return : bool; [[If $true, this is the root node]]
}
get {
}
values {
root : Efl.Ui.Focus.Object @nonull; [[Will be registered into
this manager object.]]
}
}
request_subchild {
[[Returns a widget that can receive focus
The returned widget is in a child of the passed param.
Its garanteed that child will not be prepared once again,
so you can call this function out of a prepare call.
]]
params {
child : Efl.Ui.Focus.Object; [[Parent for returned child]]
}
return : Efl.Ui.Focus.Object; [[Child of passed parameter]]
}
fetch {
[[This will fetch the data from a registered node.
Be aware this function will trigger all dirty nodes to be computed
]]
params {
child : Efl.Ui.Focus.Object; [[The child object to inspect.]]
}
return : ptr(Efl.Ui.Focus.Relations) @owned; [[The list of relations
starting from $child.]]
}
logical_end {
[[Return the last logical object.
The returned object is the last object that would be returned if you start at the root and move the direction into next.
]]
return : Efl.Ui.Focus.Manager.Logical_End_Detail; [[Last object]]
}
reset_history {
[[Reset the history stack of this manager object.
This means the most upper element will be unfocused, all other elements will be removed from the remembered before.
To not break the assertion that there should be always a focused element, you should focus a other element immidiatly after calling that.
]]
}
pop_history_stack {
[[Removes the most upper history element, and gives the focus to the next one below]]
}
setup_on_first_touch {
[[Called when this manager is set as redirect]]
params {
direction : Efl.Ui.Focus.Direction; [[The direction in which this should be setup]]
entry : Efl.Ui.Focus.Object; [[The object that caused this manager to be redirect]]
}
}
}
events {
redirect,changed : Efl.Ui.Focus.Manager; [[Emitted when the redirect
object has changed, the old manager is passed as event info]]
flush,pre; [[Emitted once the graph calculationg will be performed]]
coords,dirty; [[Emitted once the graph is dirty, this means there are
potential changes in border_elements you want to know about]]
focused : Efl.Ui.Focus.Object; [[Emitted if the manager has focused an
object, the passed focus object is the last focused object]]
}
}
|
