Goyslop/4chan-x
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slightly simplifiy expansion math

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This commit is contained in:
James Campos 2011-04-25 23:21:04 -07:00
parent d7e533d3db
commit ce4f7a2ef7
2 changed files with 33 additions and 37 deletions
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33
4chan_x.js
View File

@ -1915,14 +1915,6 @@
return _results;
}
},
foo: function() {
var bodyWidth, formLeft;
formLeft = $('form[name=delform]').getBoundingClientRect().left;
bodyWidth = d.body.clientWidth;
imgExpand.cw = bodyWidth - formLeft;
imgExpand.ch = d.body.clientHeight;
return imgExpand.type = $('#imageType').value;
},
toggle: function(img) {
var thumb;
thumb = img.parentNode.firstChild;
@ -1947,25 +1939,30 @@
a.appendChild(img);
return imgExpand.resize(img);
},
foo: function() {
imgExpand.formRight = $('form[name=delform]').getBoundingClientRect().right;
imgExpand.maxHeight = d.body.clientHeight;
return imgExpand.type = $('#imageType').value;
},
resize: function(img) {
var ch, cw, ih, iw, ratio, type, _, _ref2;
cw = imgExpand.cw, ch = imgExpand.ch, type = imgExpand.type;
_ref2 = $.x("preceding::span[@class][1]/text()[2]", img).textContent.match(/(\d+)x(\d+)/), _ = _ref2[0], iw = _ref2[1], ih = _ref2[2];
iw = Number(iw);
ih = Number(ih);
cw = cw - img.getBoundingClientRect().left;
var formRight, imgHeight, imgWidth, maxHeight, maxWidth, ratio, type, _, _ref2;
formRight = imgExpand.formRight, maxHeight = imgExpand.maxHeight, type = imgExpand.type;
_ref2 = $.x("preceding::span[@class][1]/text()[2]", img).textContent.match(/(\d+)x(\d+)/), _ = _ref2[0], imgWidth = _ref2[1], imgHeight = _ref2[2];
imgWidth = Number(imgWidth);
imgHeight = Number(imgHeight);
maxWidth = formRight - img.getBoundingClientRect().left;
switch (type) {
case 'full':
return img.removeAttribute('style');
case 'fit width':
if (iw > cw) {
return img.style.width = cw;
if (imgWidth > maxWidth) {
return img.style.width = maxWidth;
}
break;
case 'fit screen':
ratio = Math.min(cw / iw, ch / ih);
ratio = Math.min(maxWidth / imgWidth, maxHeight / imgHeight);
if (ratio < 1) {
return img.style.width = Math.floor(ratio * iw);
return img.style.width = Math.floor(ratio * imgWidth);
}
}
},

37
script.coffee
View File

@ -1448,13 +1448,6 @@ imgExpand =
for img in $$ 'img[md5] + img'
imgExpand.resize img
foo: ->
formLeft = $('form[name=delform]').getBoundingClientRect().left
bodyWidth = d.body.clientWidth
imgExpand.cw = bodyWidth - formLeft
imgExpand.ch = d.body.clientHeight
imgExpand.type = $('#imageType').value
toggle: (img) ->
thumb = img.parentNode.firstChild
imgExpand.foo()
@ -1476,26 +1469,32 @@ imgExpand =
imgExpand.resize img
resize: (img) ->
{cw, ch, type} = imgExpand
[_, iw, ih] =
$.x("preceding::span[@class][1]/text()[2]", img)
.textContent.match(/(\d+)x(\d+)/)
iw = Number iw
ih = Number ih
foo: ->
imgExpand.formRight = $('form[name=delform]').getBoundingClientRect().right
imgExpand.maxHeight = d.body.clientHeight
imgExpand.type = $('#imageType').value
cw = cw - img.getBoundingClientRect().left
resize: (img) ->
{formRight, maxHeight, type} = imgExpand
[_, imgWidth, imgHeight] = $
.x("preceding::span[@class][1]/text()[2]", img)
.textContent.match(/(\d+)x(\d+)/)
imgWidth = Number imgWidth
imgHeight = Number imgHeight
# from image's left bound to form's right bound
maxWidth = formRight - img.getBoundingClientRect().left
switch type
when 'full'
img.removeAttribute 'style'
when 'fit width'
if iw > cw
img.style.width = cw
if imgWidth > maxWidth
img.style.width = maxWidth
when 'fit screen'
ratio = Math.min cw/iw, ch/ih
ratio = Math.min maxWidth/imgWidth, maxHeight/imgHeight
if ratio < 1
img.style.width = Math.floor ratio * iw
img.style.width = Math.floor ratio * imgWidth
dialog: ->
controls = $.el 'div',