mirror of
https://github.com/flynx/ImageGrid.git
synced 2025-11-03 21:00:14 +00:00
129 lines
3.0 KiB
JavaScript
Executable File
129 lines
3.0 KiB
JavaScript
Executable File
/**********************************************************************
|
|
*
|
|
*
|
|
*
|
|
**********************************************************************/
|
|
((typeof define)[0]=='u'?function(f){module.exports=f(require)}:define)
|
|
(function(require){ var module={} // make module AMD/node compatible...
|
|
/*********************************************************************/
|
|
|
|
try{
|
|
var sharp = requirejs('sharp')
|
|
|
|
} catch(err){
|
|
var sharp = null
|
|
}
|
|
|
|
if(typeof(process) != 'undefined'){
|
|
var fse = requirejs('fs-extra')
|
|
var pathlib = requirejs('path')
|
|
var file = requirejs('imagegrid/file')
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************/
|
|
|
|
if(typeof(process) != 'undefined'){
|
|
var ensureDir = file.denodeify(fse.ensureDir)
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************/
|
|
|
|
// images format:
|
|
// [
|
|
// {
|
|
// source: <source>,
|
|
// gid: <gid>,
|
|
// },
|
|
// ...
|
|
// ]
|
|
//
|
|
var makePreviews =
|
|
module.makePreviews =
|
|
function(images, sizes, base_path, target_tpl, callback){
|
|
var that = this
|
|
|
|
var target_path = (target_tpl
|
|
|| 'preview/${RESOLUTION}px/${NAME}.jpg')
|
|
|
|
// iterate images...
|
|
return Promise.all(images.map(function(data){
|
|
var gid = data.gid || ''
|
|
var source = data.source
|
|
|
|
var ext = pathlib.extname(source)
|
|
var name = pathlib.basename(source)
|
|
.replace(RegExp(ext + '$'), '')
|
|
|
|
var target = target_path
|
|
.replace(/\$NAME|\$\{NAME\}/g, name)
|
|
.replace(/\$GID|\$\{GID\}/g, gid)
|
|
|
|
var img = sharp(source)
|
|
// get metadata....
|
|
return img.metadata().then(function(metadata){
|
|
var orig_res = Math.max(metadata.width, metadata.height)
|
|
|
|
// process previews...
|
|
return Promise.all(sizes.map(function(res){
|
|
// skip if image is smaller than res...
|
|
if(res >= orig_res){
|
|
return
|
|
}
|
|
|
|
var rel = target
|
|
.replace(/\$RESOLUTION|\$\{RESOLUTION\}/g, res)
|
|
var full = pathlib.join(base_path || '', rel)
|
|
|
|
callback && callback(null, {
|
|
status: 'queued',
|
|
gid: gid,
|
|
res: res,
|
|
path: rel
|
|
})
|
|
|
|
// make the dir...
|
|
return ensureDir(pathlib.dirname(full))
|
|
.then(function(){
|
|
// check if image exists...
|
|
if(fse.existsSync(full)){
|
|
callback && callback(null, {
|
|
status: 'skipped',
|
|
gid: gid,
|
|
res: res,
|
|
path: rel,
|
|
orientation: metadata.orientation,
|
|
})
|
|
|
|
return
|
|
}
|
|
|
|
// make the actual previews...
|
|
return img.clone()
|
|
.resize(res, res)
|
|
.max()
|
|
.withMetadata()
|
|
.toFile(full)
|
|
.then(function(){
|
|
callback && callback(null, {
|
|
status: 'done',
|
|
gid: gid,
|
|
res: res,
|
|
path: rel,
|
|
orientation: metadata.orientation,
|
|
})
|
|
})
|
|
})
|
|
}))
|
|
})
|
|
}))
|
|
}
|
|
|
|
|
|
|
|
/**********************************************************************
|
|
* vim:set ts=4 sw=4 : */ return module })
|