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userscript/scripts/Super_preloaderPlus/src/utils.js at master · dumpmemory/userscript · GitHub
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userscript
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Super_preloaderPlus
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src
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utils.js
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function
b64toBlob
(
b64Data
,
contentType
,
sliceSize
)
{
contentType
=
contentType
||
''
;
sliceSize
=
sliceSize
||
512
;
var
byteCharacters
=
atob
(
b64Data
)
;
var
byteArrays
=
[
]
;
for
(
var
offset
=
0
;
offset
<
byteCharacters
.
length
;
offset
+=
sliceSize
)
{
var
slice
=
byteCharacters
.
slice
(
offset
,
offset
+
sliceSize
)
;
var
byteNumbers
=
new
Array
(
slice
.
length
)
;
for
(
var
i
=
0
;
i
<
slice
.
length
;
i
++
)
{
byteNumbers
[
i
]
=
slice
.
charCodeAt
(
i
)
;
}
var
byteArray
=
new
Uint8Array
(
byteNumbers
)
;
byteArrays
.
push
(
byteArray
)
;
}
var
blob
=
new
Blob
(
byteArrays
,
{
type
:
contentType
}
)
;
return
blob
;
}
function
imgToBlobUrl
(
b64Data
)
{
var
contentType
=
"image/png"
;
var
blob
=
b64toBlob
(
b64Data
,
contentType
)
;
var
blobUrl
=
URL
.
createObjectURL
(
blob
)
;
return
blobUrl
;
}
function
$C
(
type
,
atArr
,
inner
,
action
,
listen
)
{
var
e
=
document
.
createElement
(
type
)
;
for
(
var
at
in
atArr
)
{
if
(
atArr
.
hasOwnProperty
(
at
)
)
{
e
.
setAttribute
(
at
,
atArr
[
at
]
)
;
}
}
if
(
action
&&
listen
)
{
e
.
addEventListener
(
action
,
listen
,
false
)
;
}
if
(
inner
)
{
e
.
innerHTML
=
inner
;
}
return
e
;
}
// css 获取单个元素
function
getElementByCSS
(
css
,
contextNode
)
{
return
(
contextNode
||
document
)
.
querySelector
(
css
)
;
}
// css 获取所有元素
function
getAllElementsByCSS
(
css
,
contextNode
)
{
return
(
contextNode
||
document
)
.
querySelectorAll
(
css
)
;
}
// xpath 获取单个元素
function
getElementByXpath
(
xpath
,
contextNode
,
doc
)
{
doc
=
doc
||
document
;
contextNode
=
contextNode
||
doc
;
return
doc
.
evaluate
(
xpath
,
contextNode
,
null
,
XPathResult
.
FIRST_ORDERED_NODE_TYPE
,
null
)
.
singleNodeValue
;
}
// xpath 获取多个元素.
function
getAllElementsByXpath
(
xpath
,
contextNode
,
doc
)
{
doc
=
doc
||
document
;
contextNode
=
contextNode
||
doc
;
return
doc
.
evaluate
(
xpath
,
contextNode
,
null
,
XPathResult
.
ORDERED_NODE_SNAPSHOT_TYPE
,
null
)
;
}
// 获取多个元素
function
getAllElements
(
selector
,
contextNode
,
doc
,
win
)
{
var
ret
=
[
]
;
if
(
!
selector
)
return
ret
;
var
Eles
;
doc
=
doc
||
document
;
win
=
win
||
window
;
contextNode
=
contextNode
||
doc
;
if
(
typeof
selector
==
'string'
)
{
if
(
selector
.
search
(
/
^
c
s
s
;
/
i
)
===
0
)
{
Eles
=
getAllElementsByCSS
(
selector
.
slice
(
4
)
,
contextNode
)
;
}
else
{
Eles
=
getAllElementsByXpath
(
selector
,
contextNode
,
doc
)
;
}
}
else
{
Eles
=
selector
(
doc
,
win
)
;
if
(
!
Eles
)
return
ret
;
if
(
Eles
.
nodeType
)
{
//单个元素.
ret
[
0
]
=
Eles
;
return
ret
;
}
}
function
unique
(
array
)
{
//数组去重并且保持数组顺序.
var
i
,
ca
,
ca2
,
j
;
for
(
i
=
0
;
i
<
array
.
length
;
i
++
)
{
ca
=
array
[
i
]
;
for
(
j
=
i
+
1
;
j
<
array
.
length
;
j
++
)
{
ca2
=
array
[
j
]
;
if
(
ca2
==
ca
)
{
array
.
splice
(
j
,
1
)
;
j
--
;
}
}
}
return
array
;
}
function
makeArray
(
x
)
{
var
ret
=
[
]
;
var
i
,
ii
;
var
x_x
;
if
(
x
.
pop
)
{
//普通的 array
for
(
i
=
0
,
ii
=
x
.
length
;
i
<
ii
;
i
++
)
{
x_x
=
x
[
i
]
;
if
(
x_x
)
{
if
(
x_x
.
nodeType
)
{
//普通类型,直接放进去.
ret
.
push
(
x_x
)
;
}
else
{
ret
=
ret
.
concat
(
makeArray
(
x_x
)
)
;
//嵌套的.
}
}
}
//alert(ret)
return
unique
(
ret
)
;
}
else
if
(
x
.
item
)
{
//nodelist or HTMLcollection
i
=
x
.
length
;
while
(
i
)
{
ret
[
--
i
]
=
x
[
i
]
;
}
/*
for(i=0,ii=x.length;i<ii;i++){
ret.push(x[i]);
};
*/
return
ret
;
}
else
if
(
x
.
iterateNext
)
{
//XPathResult
i
=
x
.
snapshotLength
;
while
(
i
)
{
ret
[
--
i
]
=
x
.
snapshotItem
(
i
)
;
}
/*
for(i=0,ii=x.snapshotLength;i<ii;i++){
ret.push(x.snapshotItem(i));
};
*/
return
ret
;
}
}
return
makeArray
(
Eles
)
;
}
// 获取最后一个元素.
function
getLastElement
(
selector
,
contextNode
,
doc
,
win
)
{
var
eles
=
getAllElements
(
selector
,
contextNode
,
doc
,
win
)
;
var
l
=
eles
.
length
;
if
(
l
>
0
)
{
return
eles
[
l
-
1
]
;
}
}
function
saveValue
(
key
,
value
)
{
localStorage
.
setItem
(
key
,
encodeURIComponent
(
value
)
)
;
}
function
getValue
(
key
)
{
var
value
=
localStorage
.
getItem
(
key
)
;
return
value
?
decodeURIComponent
(
value
)
:
undefined
;
}
function
createDocumentByString
(
str
)
{
// string转为DOM
if
(
!
str
)
{
C
.
error
(
'没有找到要转成DOM的字符串'
)
;
return
;
}
if
(
document
.
documentElement
.
nodeName
!=
'HTML'
)
{
return
new
DOMParser
(
)
.
parseFromString
(
str
,
'application/xhtml+xml'
)
;
}
var
doc
;
try
{
// firefox and chrome 30+，Opera 12 会报错
doc
=
new
DOMParser
(
)
.
parseFromString
(
str
,
'text/html'
)
;
}
catch
(
ex
)
{
}
if
(
doc
)
{
return
doc
;
}
if
(
document
.
implementation
.
createHTMLDocument
)
{
doc
=
document
.
implementation
.
createHTMLDocument
(
'superPreloader'
)
;
}
else
{
try
{
doc
=
document
.
cloneNode
(
false
)
;
doc
.
appendChild
(
doc
.
importNode
(
document
.
documentElement
,
false
)
)
;
doc
.
documentElement
.
appendChild
(
doc
.
createElement
(
'head'
)
)
;
doc
.
documentElement
.
appendChild
(
doc
.
createElement
(
'body'
)
)
;
}
catch
(
e
)
{
}
}
if
(
!
doc
)
return
;
var
range
=
document
.
createRange
(
)
;
range
.
selectNodeContents
(
document
.
body
)
;
var
fragment
=
range
.
createContextualFragment
(
str
)
;
doc
.
body
.
appendChild
(
fragment
)
;
var
headChildNames
=
{
TITLE
:
true
,
META
:
true
,
LINK
:
true
,
STYLE
:
true
,
BASE
:
true
}
;
var
child
;
var
body
=
doc
.
body
;
var
bchilds
=
body
.
childNodes
;
for
(
var
i
=
bchilds
.
length
-
1
;
i
>=
0
;
i
--
)
{
//移除head的子元素
child
=
bchilds
[
i
]
;
if
(
headChildNames
[
child
.
nodeName
]
)
body
.
removeChild
(
child
)
;
}
//alert(doc.documentElement.innerHTML);
//debug(doc);
//debug(doc.documentElement.innerHTML);
return
doc
;
}
// 从相对路径的a.href获取完全的href值.
function
getFullHref
(
href
)
{
if
(
typeof
href
!=
'string'
)
href
=
href
.
getAttribute
(
'href'
)
;
//alert(href);
//if(href.search(/^https?:/)==0)return href;//http打头,不一定就是完整的href;
var
a
=
getFullHref
.
a
;
if
(
!
a
)
{
getFullHref
.
a
=
a
=
document
.
createElement
(
'a'
)
;
}
a
.
href
=
href
;
//alert(a.href);
return
a
.
href
;
}
// 任何转成字符串，存储，修改过
function
xToString
(
x
)
{
function
toStr
(
x
)
{
switch
(
typeof
x
)
{
case
'undefined'
:
return
Str
(
x
)
;
case
'boolean'
:
return
Str
(
x
)
;
case
'number'
:
return
Str
(
x
)
;
case
'string'
:
return
(
'"'
+
(
x
.
replace
(
/
(?:
\r
\n
|
\n
|
\r
|
\t
|
\\
|
"
)
/
g
,
function
(
a
)
{
var
ret
;
switch
(
a
)
{
//转成字面量
case
'\r\n'
:
ret
=
'\\r\\n'
;
break
;
case
'\n'
:
ret
=
'\\n'
;
break
;
case
'\r'
:
ret
=
'\\r'
;
break
;
case
'\t'
:
ret
=
'\\t'
;
break
;
case
'\\'
:
ret
=
'\\\\'
;
break
;
case
'"'
:
ret
=
'\\"'
;
break
;
default
:
break
;
}
return
ret
;
}
)
)
+
'"'
)
;
case
'function'
:
var
fnStr
=
Str
(
x
)
;
return
fnStr
.
indexOf
(
'native code'
)
==
-
1
?
fnStr
:
'function(){}'
;
case
'object'
:
//注,object的除了单纯{},其他的对象的属性会造成丢失..
if
(
x
===
null
)
{
return
Str
(
x
)
;
}
switch
(
x
.
constructor
.
name
)
{
case
"Object"
:
var
i
;
var
rStr
=
''
;
for
(
i
in
x
)
{
if
(
!
x
.
hasOwnProperty
(
i
)
)
{
//去掉原型链上的属性.
continue
;
}
rStr
+=
toStr
(
i
)
+
':'
+
toStr
(
x
[
i
]
)
+
','
;
}
return
(
'{'
+
rStr
.
replace
(
/
,
$
/
i
,
''
)
+
'}'
)
;
case
"Array"
:
var
i
;
var
rStr
=
''
;
for
(
i
in
x
)
{
if
(
!
x
.
hasOwnProperty
(
i
)
)
{
//去掉原型链上的属性.
continue
;
}
rStr
+=
toStr
(
x
[
i
]
)
+
','
;
}
return
'['
+
rStr
.
replace
(
/
,
$
/
i
,
''
)
+
']'
;
case
"String"
:
return
toStr
(
Str
(
x
)
)
;
case
"RegExp"
:
return
Str
(
x
)
;
case
"Number"
:
return
Str
(
x
)
;
case
"Boolean"
:
return
Str
(
x
)
;
default
:
//alert(x.constructor);//漏了什么类型么?
break
;
}
default
:
break
;
}
}
var
Str
=
String
;
return
toStr
(
x
)
;
}
function
toRE
(
obj
)
{
if
(
obj
instanceof
RegExp
)
{
return
obj
;
}
else
if
(
obj
instanceof
Array
)
{
return
new
RegExp
(
obj
[
0
]
,
obj
[
1
]
)
;
}
else
{
if
(
obj
.
search
(
/
^
w
i
l
d
c
;
/
i
)
===
0
)
{
obj
=
wildcardToRegExpStr
(
obj
.
slice
(
6
)
)
;
}
return
new
RegExp
(
obj
)
;
}
}
function
wildcardToRegExpStr
(
urlstr
)
{
if
(
urlstr
.
source
)
return
urlstr
.
source
;
var
reg
=
urlstr
.
replace
(
/
[
(
)
\[
\]
{
}
|
+
.
,
^
$
?
\\
]
/
g
,
"\\$&"
)
.
replace
(
/
\*
+
/
g
,
function
(
str
)
{
return
str
===
"*"
?
".*"
:
"[^/]*"
;
}
)
;
return
"^"
+
reg
+
"$"
;
}
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