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fixed skipping of ribbons outside of viewer area...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2013-12-06 19:12:24 +04:00
parent 7de9c70604
commit 9406d6c5b8
1 changed files with 23 additions and 21 deletions
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44
ui/setup.js
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@ -85,7 +85,6 @@ function setupDataBindings(viewer){
// NOTE: we do not need to worry about explicit centering the ribbon
// here, just ball-park-load the correct batch...
// XXX this does not get called on marking...
.on('preCenteringRibbon', function(evt, ribbon, image){
var r = getRibbonIndex(ribbon)
@ -94,41 +93,45 @@ function setupDataBindings(viewer){
return
}
// skip the whole thing if the ribbon is not visible -- outside
// of viewer are...
var viewer = $('.viewer')
var H = viewer.height()
var h = getImage().height()
var t = getRelativeVisualPosition(viewer, ribbon).top
// skip the whole thing if the ribbon is not visible, i.e. outside
// of viewer area...
// NOTE: we are accounting for position relative to image...
// NOTE: we do not need to account for image height because
// of origin and vertical-align... (check)
// XXX also check for visibility...
if( t+h <= 0 || t >= H ){
var R = $('.viewer').height()/2
var d = Math.abs(getRelativeVisualPosition(image, ribbon).top)
if( d >= R ){
return
}
// prepare for loading...
var gid = getImageGID(image)
var gr = DATA.ribbons[r]
var img_before = getImageBefore(image, ribbon)
var gid_before = getGIDBefore(gid, r)
var img_before = gid_before == null
? ribbon.find('.image').first()
: getImageBefore(image, ribbon)
gid_before = gid_before == null ? gr[0] : gid_before
var screen_size = getScreenWidthInImages()
screen_size = screen_size < 1 ? 1 : screen_size
var load_frame_size = Math.round(screen_size * LOAD_SCREENS)
// either current image is loaded or we are at head...
if(gid_before != null
&& gid_before == getImageGID(img_before)){
var head = img_before.prevAll('.image').length
var tail = img_before.nextAll('.image').length
var l = ribbon.find('.image').length
var index = gr.indexOf(gid)
var at_start = index < threshold
var at_end = (gr.length-1 - index) < threshold
if(gid_before == getImageGID(img_before)){
var roll_frame_size = Math.ceil(load_frame_size / 3)
var threshold = Math.floor(load_frame_size / 4)
threshold = threshold < 1 ? 1 : threshold
var head = img_before.prevAll('.image').length
var tail = img_before.nextAll('.image').length
var l = ribbon.find('.image').length
var index = gr.indexOf(gid_before)
var at_start = index < threshold
var at_end = (gr.length-1 - index) < threshold
// less images than expected - extend ribbon...
if(l < load_frame_size){
// NOTE: we are forcing the count of images...
@ -184,11 +187,13 @@ function setupDataBindings(viewer){
.on('requestedFirstImage', function(evt, ribbon){
var r = getRibbonIndex(ribbon)
var gr = DATA.ribbons[r]
console.log('!!!!! rolling to first:', r)
rollImages(-gr.length, ribbon)
})
.on('requestedLastImage', function(evt, ribbon){
var r = getRibbonIndex(ribbon)
var gr = DATA.ribbons[r]
console.log('!!!!! rolling to last:', r)
rollImages(gr.length, ribbon)
})
@ -230,9 +235,6 @@ function setupDataBindings(viewer){
}
// update proportions...
// XXX for some magical reason this is stable for un-rotated
// images and does mad things for rotate 90/270 images...
// ...the only thing that is
if(window.PROPORTIONS_RATIO_THRESHOLD != null
&& toggleSingleImageMode('?') == 'on'){