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62383be3
编写于
2月 14, 2017
作者:
J
Joao Moreno
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电子邮件补丁
差异文件
list: cleanup trait preserving splice
上级
efbd7530
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
48 addition
and
15 deletion
+48
-15
src/vs/base/browser/ui/list/listWidget.ts
src/vs/base/browser/ui/list/listWidget.ts
+48
-15
未找到文件。
src/vs/base/browser/ui/list/listWidget.ts
浏览文件 @
62383be3
...
...
@@ -20,6 +20,19 @@ export interface IIdentityProvider<T> {
(
element
:
T
):
string
;
}
export
interface
ISpliceable
<
T
>
{
splice
(
start
:
number
,
deleteCount
:
number
,
elements
:
T
[]):
void
;
}
class
CombinedSpliceable
<
T
>
implements
ISpliceable
<
T
>
{
constructor
(
private
spliceables
:
ISpliceable
<
T
>
[])
{
}
splice
(
start
:
number
,
deleteCount
:
number
,
elements
:
T
[]):
void
{
this
.
spliceables
.
forEach
(
s
=>
s
.
splice
(
start
,
deleteCount
,
elements
));
}
}
interface
ITraitTemplateData
<
D
>
{
container
:
HTMLElement
;
data
:
D
;
...
...
@@ -56,7 +69,7 @@ class TraitRenderer<T, D> implements IRenderer<T, ITraitTemplateData<D>>
}
}
class
Trait
<
T
>
implements
IDisposable
{
class
Trait
<
T
>
implements
I
Spliceable
<
boolean
>
,
I
Disposable
{
private
indexes
:
number
[];
...
...
@@ -124,6 +137,31 @@ class FocusTrait<T> extends Trait<T> {
}
}
/**
* The TraitSpliceable is used as a util class to be able
* to preserve traits across splice calls, given an identity
* provider.
*/
class
TraitSpliceable
<
T
>
implements
ISpliceable
<
T
>
{
constructor
(
private
trait
:
Trait
<
T
>
,
private
view
:
ListView
<
T
>
,
private
getId
?:
IIdentityProvider
<
T
>
)
{
}
splice
(
start
:
number
,
deleteCount
:
number
,
elements
:
T
[]):
void
{
if
(
!
this
.
getId
)
{
return
this
.
trait
.
splice
(
start
,
deleteCount
,
elements
.
map
(
e
=>
false
));
}
const
pastElementsWithTrait
=
this
.
trait
.
get
().
map
(
i
=>
this
.
getId
(
this
.
view
.
element
(
i
)));
const
elementsWithTrait
=
elements
.
map
(
e
=>
pastElementsWithTrait
.
indexOf
(
this
.
getId
(
e
))
>
-
1
);
this
.
trait
.
splice
(
start
,
deleteCount
,
elementsWithTrait
);
}
}
class
KeyboardController
<
T
>
implements
IDisposable
{
private
disposables
:
IDisposable
[];
...
...
@@ -229,7 +267,7 @@ const DefaultOptions: IListOptions<any> = {
mouseSupport
:
true
};
export
class
List
<
T
>
implements
IDisposable
{
export
class
List
<
T
>
implements
I
Spliceable
<
T
>
,
I
Disposable
{
private
static
InstanceCount
=
0
;
private
idPrefix
=
`list_id_
${
++
List
.
InstanceCount
}
`
;
...
...
@@ -238,7 +276,7 @@ export class List<T> implements IDisposable {
private
selection
:
Trait
<
T
>
;
private
eventBufferer
:
EventBufferer
;
private
view
:
ListView
<
T
>
;
private
getId
?:
IIdentityProvider
<
T
>
;
private
spliceable
:
ISpliceable
<
T
>
;
private
disposables
:
IDisposable
[];
@
memoize
...
...
@@ -274,7 +312,6 @@ export class List<T> implements IDisposable {
this
.
focus
=
new
FocusTrait
(
i
=>
this
.
getElementDomId
(
i
));
this
.
selection
=
new
Trait
(
'
selected
'
);
this
.
eventBufferer
=
new
EventBufferer
();
this
.
getId
=
options
.
identityProvider
;
renderers
=
renderers
.
map
(
r
=>
{
r
=
this
.
focus
.
wrapRenderer
(
r
);
...
...
@@ -286,6 +323,12 @@ export class List<T> implements IDisposable {
this
.
view
.
domNode
.
setAttribute
(
'
role
'
,
'
tree
'
);
this
.
view
.
domNode
.
tabIndex
=
0
;
this
.
spliceable
=
new
CombinedSpliceable
([
new
TraitSpliceable
(
this
.
focus
,
this
.
view
,
options
.
identityProvider
),
new
TraitSpliceable
(
this
.
selection
,
this
.
view
,
options
.
identityProvider
),
this
.
view
]);
this
.
disposables
=
[
this
.
focus
,
this
.
selection
,
this
.
view
,
this
.
_onDispose
];
const
tracker
=
DOM
.
trackFocus
(
this
.
view
.
domNode
);
...
...
@@ -308,17 +351,7 @@ export class List<T> implements IDisposable {
}
splice
(
start
:
number
,
deleteCount
:
number
,
elements
:
T
[]
=
[]):
void
{
this
.
eventBufferer
.
bufferEvents
(()
=>
{
const
focus
=
this
.
focus
.
get
().
map
(
i
=>
this
.
getId
(
this
.
view
.
element
(
i
)));
const
focusElements
=
elements
.
map
(
e
=>
focus
.
indexOf
(
this
.
getId
(
e
))
>
-
1
);
const
selection
=
this
.
selection
.
get
().
map
(
i
=>
this
.
getId
(
this
.
view
.
element
(
i
)));
const
selectionElements
=
elements
.
map
(
e
=>
selection
.
indexOf
(
this
.
getId
(
e
))
>
-
1
);
this
.
focus
.
splice
(
start
,
deleteCount
,
focusElements
);
this
.
selection
.
splice
(
start
,
deleteCount
,
selectionElements
);
this
.
view
.
splice
(
start
,
deleteCount
,
elements
);
});
this
.
eventBufferer
.
bufferEvents
(()
=>
this
.
spliceable
.
splice
(
start
,
deleteCount
,
elements
));
}
get
length
():
number
{
...
...
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