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QP Hou
experiments
Commits
06bc3e10
Commit
06bc3e10
authored
Nov 23, 2018
by
Julie Blanc
Browse files
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Plain Diff
replace position:absolute by addition of padding
parent
ae43dea8
Changes
2
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Inline
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Showing
2 changed files
with
17 additions
and
21 deletions
+17
-21
index.html
baseline/index.html
+1
-1
snap-text-baseline.js
baseline/js/snap-text-baseline.js
+16
-20
No files found.
baseline/index.html
View file @
06bc3e10
...
...
@@ -15,7 +15,7 @@
<!-- styles -->
<link
rel=
"stylesheet"
href=
"css/interface.css"
/>
<link
rel=
"stylesheet"
href=
"css/
baselin
e.css"
/>
<link
rel=
"stylesheet"
href=
"css/
styl
e.css"
/>
<!-- paged.js script -->
<script
async
src=
"http://localhost:9090/dist/paged.polyfill.js"
></script>
...
...
baseline/js/snap-text-baseline.js
View file @
06bc3e10
...
...
@@ -23,9 +23,9 @@ function snapBaseline(config){
/* baseline position + vertical Rythm of paragraphs */
const
paragraph
=
'
p
'
;
let
baselinePosition
=
verticalRythm
(
paragraph
,
''
,
''
,
baselineDoc
,
strict
);
let
baselinePosition
=
verticalRythm
(
paragraph
,
''
,
''
,
baselineDoc
,
strict
,
0
);
let
baselinePositionCSS
=
'
:root{ --pagedjs-baseline-position : -
'
+
baselinePosition
+
'
px; }
'
addcss
(
baselinePositionCSS
);
addcss
(
baselinePositionCSS
);
/* elements to which the script applies */
[
"
p
"
,
"
h1
"
,
"
h2
"
,
"
h3
"
,
"
h4
"
,
"
h5
"
,
"
h6
"
,
"
ul
"
,
"
li
"
,
"
blockquote
"
,
"
figcaption
"
,
"
adress
"
,
"
dt
"
,
"
dd
"
,
"
hr
"
,
"
pre
"
].
forEach
(
element
=>
snapTextElement
(
element
,
baselinePosition
,
baselineDoc
,
strict
));
...
...
@@ -44,30 +44,24 @@ function snapTextElement(elementSelector, baselinePosition, baselineDoc, strict)
let
elem
=
document
.
querySelectorAll
(
elementSelector
);
let
configStrict
=
strict
;
// do calculation on each tag element
let
gapBaselineElem
=
verticalRythm
(
elementSelector
,
''
,
''
,
baselineDoc
,
configStrict
);
let
newgapBaselineElem
=
gapBaselineElem
-
baselinePosition
;
verticalRythm
(
elementSelector
,
''
,
''
,
baselineDoc
,
configStrict
,
baselinePosition
);
for
(
let
i
=
0
;
i
<
elem
.
length
;
i
++
)
{
elem
[
i
].
style
.
position
=
"
relative
"
;
elem
[
i
].
style
.
top
=
newgapBaselineElem
+
"
px
"
;
}
// do calculation for specific class or id
for
(
let
i
=
0
;
i
<
elem
.
length
;
i
++
)
{
let
allClasses
=
elem
[
i
].
classList
;
let
elemId
=
elem
[
i
].
id
;
if
(
allClasses
.
length
!=
0
||
elemId
!=
""
){
let
gapBaselineThisElem
=
verticalRythm
(
elementSelector
,
allClasses
,
elemId
,
baselineDoc
,
configStrict
);
let
newgapBaselineThisElem
=
gapBaselineThisElem
-
baselinePosition
;
elem
[
i
].
style
.
top
=
newgapBaselineThisElem
+
"
px
"
;
verticalRythm
(
elementSelector
,
allClasses
,
elemId
,
baselineDoc
,
configStrict
,
baselinePosition
);
}
}
}
...
...
@@ -113,7 +107,7 @@ ________________________________________________________________________________
___________________________________________________________________________________________________
*/
function
verticalRythm
(
elem
,
elemClass
,
elemId
,
base
,
strict
){
function
verticalRythm
(
elem
,
elemClass
,
elemId
,
base
,
strict
,
baselinePosition
){
let
baseline
=
base
;
let
configStrict
=
strict
;
...
...
@@ -162,6 +156,10 @@ function verticalRythm(elem, elemClass, elemId, base, strict){
newMarginTop
=
ceilMarginTop
*
baseline
;
newMarginBottom
=
ceilMarginBottom
*
baseline
;
/* distance between baseline font and baseline document */
let
gapBaseline
=
((
computedLineHeight
+
baseline
*
ceilLineHeight
)
/
2
)
-
(
metrics
.
top
*
-
1
*
styles
.
fontSize
);
let
gapBaselineElem
=
gapBaseline
-
baselinePosition
;
/* New paggings */
if
(
configStrict
){
...
...
@@ -169,22 +167,22 @@ function verticalRythm(elem, elemClass, elemId, base, strict){
let
sumPaddingBottom
=
styles
.
paddingBottom
+
styles
.
borderBottom
;
let
ceilSumTop
=
Math
.
ceil
(
sumPaddingTop
/
baseline
);
let
ceilSumBottom
=
Math
.
ceil
(
sumPaddingBottom
/
baseline
);
newPaddingTop
=
ceilSumTop
*
baseline
-
styles
.
borderTop
;
newPaddingTop
=
ceilSumTop
*
baseline
-
styles
.
borderTop
+
gapBaselineElem
;
newPaddingBottom
=
ceilSumBottom
*
baseline
-
styles
.
borderBottom
;
}
else
{
let
sumPadding
=
styles
.
paddingTop
+
styles
.
borderTop
+
styles
.
paddingBottom
+
styles
.
borderBottom
;
let
moduloPadding
=
sumPadding
%
baseline
;
if
(
moduloPadding
==
0
){
newPaddingTop
=
styles
.
paddingTop
;
newPaddingTop
=
styles
.
paddingTop
+
gapBaselineElem
;
newPaddingBottom
=
styles
.
paddingBottom
;
}
else
{
if
(
moduloPadding
%
2
==
0
){
newPaddingTop
=
styles
.
paddingTop
+
(
baseline
-
moduloPadding
)
/
2
;
newPaddingTop
=
styles
.
paddingTop
+
(
baseline
-
moduloPadding
)
/
2
+
gapBaselineElem
;
newPaddingBottom
=
styles
.
paddingBottom
+
(
baseline
-
moduloPadding
)
/
2
;
}
else
{
moduloPadding
=
moduloPadding
-
1
;
newPaddingTop
=
styles
.
paddingTop
+
(
baseline
-
moduloPadding
)
/
2
;
newPaddingTop
=
styles
.
paddingTop
+
(
baseline
-
moduloPadding
)
/
2
+
gapBaselineElem
;
newPaddingBottom
=
styles
.
paddingBottom
+
(
baseline
-
moduloPadding
)
/
2
-
1
;
}
}
...
...
@@ -227,9 +225,7 @@ function verticalRythm(elem, elemClass, elemId, base, strict){
elementSpecificId
.
style
.
marginBottom
=
newMarginBottom
+
"
px
"
;
}
/* distance between baseline font and baseline document */
let
gapBaseline
=
((
computedLineHeight
+
baseline
*
ceilLineHeight
)
/
2
)
-
(
metrics
.
top
*
-
1
*
styles
.
fontSize
);
/* return for the baseline position */
return
gapBaseline
;
}
...
...
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