mirror of
https://github.com/flynx/ImageGrid.git
synced 2025-10-31 11:20:09 +00:00
reorgonized the gen3 code...
Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
parent
75b2147cd2
commit
bb636f9c91
618
ui/ImageGrid.js
618
ui/ImageGrid.js
@ -1,149 +1,555 @@
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/**********************************************************************
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*
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*
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*
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*
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* This should work over three contexts:
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* - archive (full)
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* full data available remotely
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* handle global operations
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* - local data (full or partial)
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* full or partial set of data available locally
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* handle global operations (if full data-set is available)
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* handle local operations (if enough data is available)
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* - local view (partial)
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* only the rendered UI and cache
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* Viewer Generation III
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*
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* Split the API into the following sections:
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* - main control actions
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* do main domain tasks like image and ribbon manipulation.
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* - serialization and deserialization
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* load and save data
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* - UI
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* basic align, animation and modes
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*
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*
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* TODO group all actions into an object, referencing the viewer...
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* ...this will make this reusable multiple times.
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*
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*
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**********************************************************************/
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var Context = {
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// the selection query used to get data...
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// NOTE: this should support operations to get next and prev batches if it's partial
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// XXX we do not care about this yet
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query: null,
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// this can be:
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// 'full' - indicating that all the data is available locally
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// 'partial' - indicating that only part of the data is available
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data_state: 'full',
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/**********************************************************************
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* Constructors
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*/
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data: {
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// current image...
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current: null,
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// NOTE: to avoid state sync problems this should clone an image if
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// one is available...
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function createImage(n){
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if(n == null){
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if(window._n == null){
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window._n = 0
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}
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n = _n
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_n += 1
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}
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var img = $('.image')
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if(img.length > 0){
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return img.first().clone()
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.attr({
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'order': n,
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// need to strip extra classes...
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'class': 'image'
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})
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} else {
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return $('<div order="'+n+'" class="image"/>')
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}
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}
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// images, hashed by GUID...
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images: {
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},
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// This will create a set of new images, reusing a list of existing
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// elements if given.
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// XXX do we need this???
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function createImages(need, have){
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have = have == null ? [] : have
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// list of ribbons...
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ribbons: [
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// list of GUIDs in sort order...
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[]
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],
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// list of marked GUIDs...
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marked: [
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],
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// we have enough elements in the cache...
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if(have.length >= need){
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return $(have.splice(0, need))
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// need to create additional elements...
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} else {
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return $(have.toArray().concat(new Array(need - have.length)))
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.map(function(i, elem){
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if(elem != null){
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return elem
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}
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return createImage()[0]
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})
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}
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}
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function createRibbon(){
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return $('<div class="ribbon"/>')
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}
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/**********************************************************************
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* Helpers
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*/
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function flashIndicator(direction){
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$(direction == 'prev' ? '.up-indicator' : '.down-indicator').fadeIn(200).fadeOut(200)
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}
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// ...tried to make this as brain-dead-stupidly-simple as possible...
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function getRelativeVisualPosition(outer, inner){
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outer = $(outer).offset()
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inner = $(inner).offset()
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return {
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top: inner.top - outer.top,
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left: inner.left - outer.left
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}
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}
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// NOTE: if this returns null, it means that the element is smallest in
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// target ribbon -- first position.
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function getImageBefore(image, ribbon, mode){
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if(mode == null){
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mode = NAV_DEFAULT
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}
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image = $(image)
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if(ribbon == null){
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ribbon = image.closest('.ribbon')
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}
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var images = $(ribbon).find('.image').filter(mode)
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var order = image.attr('order')
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var prev = null
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images.each(function(){
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if(order < $(this).attr('order')){
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return false
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}
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prev = this
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})
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return $(prev)
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}
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function shiftTo(image, ribbon){
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var target = getImageBefore(image, ribbon)
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var cur_ribbon = image.closest('.ribbon')
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// insert before the first image if nothing is before the target...
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if(target.length == 0){
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image.prependTo($(ribbon))
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} else {
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image.insertAfter(target)
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}
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view: null,
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// if removing last image out of a ribbon, remove the ribbon....
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if(cur_ribbon.find('.image').length == 0){
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cur_ribbon.remove()
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}
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return image
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}
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function shiftImage(direction, image, force_create_ribbon){
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if(image == null){
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// XXX need to make this context specific...
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image = $('.current.image')
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} else {
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image = $(image)
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}
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var old_ribbon = image.closest('.ribbon')
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var ribbon = old_ribbon[direction]('.ribbon')
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/**********************************************************************
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* Helpers...
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*/
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// retrun viewer width in images...
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function getViewImages(){
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// XXX
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// need to create a new ribbon...
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if(ribbon.length == 0 || force_create_ribbon == true){
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ribbon = createRibbon()['insert' + (direction == 'prev'
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? 'Before'
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: 'After')](old_ribbon)
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shiftTo(image, ribbon)
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} else {
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shiftTo(image, ribbon)
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}
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return image
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}
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/**********************************************************************
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* User actions...
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* Modes
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*/
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/* Focus an image...
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*
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* n can be:
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* - position relative to current
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* -1 is previous image, +1 next
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* - GUID
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* if GUID is present in context select it.
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var toggleMarkedOnlyView = createCSSClassToggler('.viewer', 'marked-only',
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function(){
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var cur = $('.current.image')
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// current is marked...
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if(cur.hasClass('marked')){
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centerImage(null, 'css')
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return
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}
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// there is a marked image in this ribbon...
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var target = getImageBefore(cur, null, true)
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if(target.length > 0){
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centerImage(focusImage(target), 'css')
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return
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}
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// get marked image from other ribbons...
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prevRibbon()
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if($('.current.image').hasClass('marked')){
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return
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}
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nextRibbon()
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})
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// XXX add ability to take all marked images and open them in a separate view...
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// XXX should we use the createCSSClassToggler for this?
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// XXX revise: does extra stuff...
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function toggleImageProportions(mode){
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var image = $('.image')
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var h = image.outerHeight(true)
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var w = image.outerWidth(true)
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if(mode == '?'){
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return h != w ? 'viewer' : 'square'
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// square...
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} else if(h != w || mode == 'square'){
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var size = Math.min(w, h)
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image.css({
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width: size,
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height: size
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})
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centerImage(null, 'css')
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return 'square'
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// viewer size...
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} else {
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var viewer = $('.viewer')
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var W = viewer.innerWidth()
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var H = viewer.innerHeight()
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if(W > H){
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image.css('width', W * h/H)
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} else {
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image.css('height', H * w/W)
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}
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centerImage(null, 'css')
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return 'viewer'
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}
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}
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/**********************************************************************
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* Layout
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*/
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function focusImage(n){
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// XXX
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function focusImage(image){
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image.closest('.viewer').find('.current.image').removeClass('current')
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return image.addClass('current')
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}
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// shorthands...
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function nextImage(){
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return focusImage(1)
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}
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function prevImage(){
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return focusImage(-1)
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}
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// NOTE: here n is the multiplier to the screen width of images...
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function nextViewImages(n){
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n = n == null ? 1 : n
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return focusImage(getViewImages()*n)
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}
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function prevViewImages(n){
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n = n == null ? -1 : -n
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return focusImage(getViewImages()*n)
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}
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function firstImage(){
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// XXX
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}
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function lastImage(){
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// XXX
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// This appears to work well with scaling...
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// XXX make this more configurable...
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// XXX this only works for square images...
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function centerImage(image, mode){
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if(mode == null){
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//mode = 'css'
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mode = 'animate'
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}
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if(image == null || image.length == 0){
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image = $('.current.image')
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}
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var viewer = $('.viewer')
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// XXX should these be "inner"???
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var W = viewer.innerWidth()
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var H = viewer.innerHeight()
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var ribbons = $('.ribbon-set')
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var scale = getElementScale(ribbons)
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// NOTE: these are scalable, this needs to get normalized...
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var w = image.outerWidth()*scale
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var h = image.outerHeight()*scale
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var pos = getRelativeVisualPosition(viewer, image)
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// zero out top/left if set to anything other than a specific number...
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var t = parseFloat(ribbons.css('top'))
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t = t ? t : 0
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var l = parseFloat(ribbons.css('left'))
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l = l ? l : 0
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// do the actual work...
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return ribbons[mode]({
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'top': t - pos.top + (H - h)/2,
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'left': l - pos.left + (W - w)/2
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})
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}
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/* Focus a ribbon...
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*
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* n can be:
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* - position relative to current
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* -1 is previous image, +1 next
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* - GUID (???)
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* if GUID is present in context select it.
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*
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* NOTE: this will also focus the closest image...
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/**********************************************************************
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* Infinite ribbon machinery
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*/
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function focusRibbon(n){
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// XXX
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// XXX need mechanics to populate the images or to connect such
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// functionality...
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// ...this is to be done in the loader...
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// NOTE: negative left or right will contract the ribbon...
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function extendRibbon(left, right, ribbon){
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ribbon = ribbon == null ?
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$('.current.image').closest('.ribbon')
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: $(ribbon)
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left = left == null ? 0 : left
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right = right == null ? 0 : right
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var images = ribbon.children('.image')
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var removed = []
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var res = {
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left: [],
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right: []
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}
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// truncate...
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// NOTE: we save the detached elements to reuse them on extending,
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// if needed...
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if(left < 0){
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removed = $(images.splice(0, -left)).detach()
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}
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if(right < 0){
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var l = images.length
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removed = $(images.splice(l+right, l)).detach()
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}
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// extend...
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if (left > 0){
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res.left = createImages(left, removed).prependTo(ribbon)
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}
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if (right > 0){
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res.right = createImages(right, removed).appendTo(ribbon)
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}
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return res
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}
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// shorthands...
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function ribbonAbove(n){
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n = n == null ? -1 : n
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return focusRibbon(n)
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}
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function ribbonBelow(n){
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n = n == null ? 1 : -n
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return focusRibbon(n)
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}
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function topRibbon(){
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// XXX
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}
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function bottomRibbon(){
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// XXX
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// Roll the ribbon n positions to the left.
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//
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// NOTE: if n is negative the ribbon will be rolled right.
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// NOTE: rollRibbon(N, R) is equivalent to extendRibbon(-N, N, R)
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// NOTE: this will return a single list of relocated elements...
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function rollRibbon(n, ribbon){
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var res = extendRibbon(-n, n, ribbon)
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return n > 0 ? res.right : res.left
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}
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/* Marking...
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*
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* NOTE: n can be null, then current image is marked.
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/**********************************************************************
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* User actions
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*/
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function toggleMark(n){
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// XXX
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// NOTE: NAV_ALL might not be practical...
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var NAV_ALL = '*'
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var NAV_VISIBLE = ':visible'
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var NAV_MARKED = '.marked:visible'
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var NAV_DEFAULT = NAV_VISIBLE
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// basic navigation actions...
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function nextImage(mode){
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if(mode == null){
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mode = NAV_DEFAULT
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}
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return centerImage(
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focusImage(
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$('.current.image').nextAll('.image' + mode).first()))
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}
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function prevImage(mode){
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if(mode == null){
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mode = NAV_DEFAULT
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}
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return centerImage(
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focusImage(
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$('.current.image').prevAll('.image' + mode).first()))
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}
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function firstImage(mode){
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if(mode == null){
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mode = NAV_DEFAULT
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}
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return centerImage(
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focusImage(
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$('.current.image').closest('.ribbon').find('.image').filter(mode).first()))
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}
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function lastImage(mode){
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if(mode == null){
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mode = NAV_DEFAULT
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}
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return centerImage(
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focusImage(
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$('.current.image').closest('.ribbon').find('.image').filter(mode).last()))
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}
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||||
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// NOTE: if moving is 'next' these will chose the image after the current's order.
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// NOTE: if an image with the same order is found, moving argument has no effect.
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// XXX get move direction...
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function prevRibbon(moving, mode){
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if(mode == null){
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mode = NAV_DEFAULT
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}
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var cur = $('.current.image')
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// pre marked-only mode...
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//var target = getImageBefore(cur, cur.closest('.ribbon').prev('.ribbon'))
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var target = getImageBefore(cur, cur.closest('.ribbon').prevAll('.ribbon' + mode).first(), true)
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if(moving == 'next' && cur.attr('order') != target.attr('order')){
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var next = target.nextAll('.image' + mode).first()
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target = next.length > 0 ? next : target
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}
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return centerImage(focusImage(target))
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}
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// XXX get move direction...
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function nextRibbon(moving, mode){
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if(mode == null){
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mode = NAV_DEFAULT
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}
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var cur = $('.current.image')
|
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// pre marked-only mode...
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//var target = getImageBefore(cur, cur.closest('.ribbon').next('.ribbon'))
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var target = getImageBefore(cur, cur.closest('.ribbon').nextAll('.ribbon' + mode).first(), true)
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if(moving == 'next' && cur.attr('order') != target.attr('order')){
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var next = target.nextAll('.image' + mode).first()
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||||
target = next.length > 0 ? next : target
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||||
}
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||||
return centerImage(focusImage(target))
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}
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// XXX get move direction...
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function _shiftImageTo(image, direction, moving, force_create_ribbon){
|
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if(image == null){
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image = $('.current.image')
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}
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||||
|
||||
// account move for direction...
|
||||
// XXX get the value from some place more logical than the argument...
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||||
var a = moving == 'prev' ? 'prev' : 'next'
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||||
var b = moving == 'prev' ? 'next' : 'prev'
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||||
var target = image[a]('.image')
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||||
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||||
target = target.length == 0 ? image[b]() : target
|
||||
|
||||
// XXX should this be in here or coupled later via an event???
|
||||
flashIndicator(direction)
|
||||
|
||||
shiftImage(direction, image, force_create_ribbon)
|
||||
// XXX does this need to be animated???
|
||||
return centerImage(focusImage(target), 'css')
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||||
}
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||||
function shiftImageUp(image){
|
||||
return _shiftImageTo(image, 'prev')
|
||||
}
|
||||
function shiftImageDown(image){
|
||||
return _shiftImageTo(image, 'next')
|
||||
}
|
||||
function shiftImageUpNewRibbon(image){
|
||||
return _shiftImageTo(image, 'prev', true)
|
||||
}
|
||||
function shiftImageDownNewRibbon(image){
|
||||
return _shiftImageTo(image, 'prev', false)
|
||||
}
|
||||
|
||||
|
||||
// TODO manual image ordering (shiftLeft/shiftRight functions)
|
||||
// XXX
|
||||
|
||||
function fitNImages(n){
|
||||
var image = $('.current.image')
|
||||
var size = image.outerHeight(true)
|
||||
|
||||
var viewer = $('.viewer')
|
||||
var W = viewer.innerWidth()
|
||||
var H = viewer.innerHeight()
|
||||
|
||||
var scale = Math.min(W / (size * n), H / size)
|
||||
|
||||
// XXX if animating, the next two likes must be animated together...
|
||||
setElementScale($('.ribbon-set'), scale)
|
||||
centerImage(image, 'css')
|
||||
}
|
||||
|
||||
|
||||
|
||||
// Marks...
|
||||
|
||||
var toggleImageMark = createCSSClassToggler('.current.image', 'marked')
|
||||
|
||||
// mode can be:
|
||||
// - 'ribbon'
|
||||
// - 'all'
|
||||
function removeImageMarks(mode){
|
||||
// remove marks from current ribbon (default)...
|
||||
if(mode == 'ribbon' || mode == null){
|
||||
return $('.current.image')
|
||||
.closest('.ribbon')
|
||||
.find('.marked')
|
||||
.removeClass('marked')
|
||||
|
||||
// remove all marks...
|
||||
} else if(mode == 'all'){
|
||||
return $('.marked')
|
||||
.removeClass('marked')
|
||||
}
|
||||
}
|
||||
|
||||
function markAll(mode){
|
||||
// remove marks from current ribbon (default)...
|
||||
if(mode == 'ribbon' || mode == null){
|
||||
return $('.current.image')
|
||||
.closest('.ribbon')
|
||||
.find('.image:not(.marked)')
|
||||
.addClass('marked')
|
||||
|
||||
// remove all marks...
|
||||
} else if(mode == 'all'){
|
||||
return $('.image:not(.marked)').addClass('marked')
|
||||
}
|
||||
}
|
||||
|
||||
function invertImageMarks(){
|
||||
return $('.current.image')
|
||||
.closest('.ribbon')
|
||||
.find('.image')
|
||||
.toggleClass('marked')
|
||||
}
|
||||
|
||||
// this will toggle marks in the current continuous section of marked
|
||||
// or unmarked images...
|
||||
function toggleImageMarkBlock(image){
|
||||
if(image == null){
|
||||
image = $('.current.image')
|
||||
}
|
||||
// we need to invert this...
|
||||
var state = toggleImageMark()
|
||||
var _convert = function(){
|
||||
if(toggleImageMark(this, '?') == state){
|
||||
return false
|
||||
}
|
||||
toggleImageMark(this, state)
|
||||
}
|
||||
image.nextAll('.image').each(_convert)
|
||||
image.prevAll('.image').each(_convert)
|
||||
return state
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* Event handlers...
|
||||
*/
|
||||
|
||||
// NOTE: this is on purpose done relative...
|
||||
function clickHandler(evt){
|
||||
var img = $(evt.target).closest('.image')
|
||||
|
||||
centerImage(
|
||||
focusImage(img))
|
||||
}
|
||||
|
||||
|
||||
|
||||
538
ui/index.html
538
ui/index.html
@ -194,544 +194,10 @@
|
||||
<script src="lib/jli.js"></script>
|
||||
<script src="lib/keyboard.js"></script>
|
||||
|
||||
<script src="ImageGrid.js"></script>
|
||||
|
||||
<script>
|
||||
|
||||
/*
|
||||
|
||||
Viewer Generation III
|
||||
|
||||
Split the API into the following sections:
|
||||
- main control actions
|
||||
do main domain tasks like image and ribbon manipulation.
|
||||
- serialization and deserialization
|
||||
load and save data
|
||||
- UI
|
||||
basic align, animation and modes
|
||||
|
||||
|
||||
TODO group all actions into an object, referencing the viewer...
|
||||
...this will make this reusable multiple times.
|
||||
*/
|
||||
|
||||
|
||||
function flashIndicator(direction){
|
||||
$(direction == 'prev' ? '.up-indicator' : '.down-indicator').fadeIn(200).fadeOut(200)
|
||||
}
|
||||
|
||||
|
||||
var toggleMarkedOnlyView = createCSSClassToggler('.viewer', 'marked-only',
|
||||
function(){
|
||||
var cur = $('.current.image')
|
||||
// current is marked...
|
||||
if(cur.hasClass('marked')){
|
||||
centerImage(null, 'css')
|
||||
return
|
||||
}
|
||||
// there is a marked image in this ribbon...
|
||||
var target = getImageBefore(cur, null, true)
|
||||
if(target.length > 0){
|
||||
centerImage(focusImage(target), 'css')
|
||||
return
|
||||
}
|
||||
// get marked image from other ribbons...
|
||||
prevRibbon()
|
||||
if($('.current.image').hasClass('marked')){
|
||||
return
|
||||
}
|
||||
nextRibbon()
|
||||
})
|
||||
|
||||
|
||||
// XXX add ability to take all marked images and open them in a separate view...
|
||||
|
||||
|
||||
|
||||
var toggleImageMark = createCSSClassToggler('.current.image', 'marked')
|
||||
|
||||
// mode can be:
|
||||
// - 'ribbon'
|
||||
// - 'all'
|
||||
function removeImageMarks(mode){
|
||||
// remove marks from current ribbon (default)...
|
||||
if(mode == 'ribbon' || mode == null){
|
||||
return $('.current.image')
|
||||
.closest('.ribbon')
|
||||
.find('.marked')
|
||||
.removeClass('marked')
|
||||
|
||||
// remove all marks...
|
||||
} else if(mode == 'all'){
|
||||
return $('.marked')
|
||||
.removeClass('marked')
|
||||
}
|
||||
}
|
||||
|
||||
function markAll(mode){
|
||||
// remove marks from current ribbon (default)...
|
||||
if(mode == 'ribbon' || mode == null){
|
||||
return $('.current.image')
|
||||
.closest('.ribbon')
|
||||
.find('.image:not(.marked)')
|
||||
.addClass('marked')
|
||||
|
||||
// remove all marks...
|
||||
} else if(mode == 'all'){
|
||||
return $('.image:not(.marked)').addClass('marked')
|
||||
}
|
||||
}
|
||||
|
||||
function invertImageMarks(){
|
||||
return $('.current.image')
|
||||
.closest('.ribbon')
|
||||
.find('.image')
|
||||
.toggleClass('marked')
|
||||
}
|
||||
|
||||
// this will toggle marks in the current continuous section of marked
|
||||
// or unmarked images...
|
||||
function toggleImageMarkBlock(image){
|
||||
if(image == null){
|
||||
image = $('.current.image')
|
||||
}
|
||||
// we need to invert this...
|
||||
var state = toggleImageMark()
|
||||
var _convert = function(){
|
||||
if(toggleImageMark(this, '?') == state){
|
||||
return false
|
||||
}
|
||||
toggleImageMark(this, state)
|
||||
}
|
||||
image.nextAll('.image').each(_convert)
|
||||
image.prevAll('.image').each(_convert)
|
||||
return state
|
||||
}
|
||||
|
||||
// XXX should we use the createCSSClassToggler for this?
|
||||
// XXX revise: does extra stuff...
|
||||
function toggleImageProportions(mode){
|
||||
var image = $('.image')
|
||||
var h = image.outerHeight(true)
|
||||
var w = image.outerWidth(true)
|
||||
|
||||
if(mode == '?'){
|
||||
return h != w ? 'viewer' : 'square'
|
||||
|
||||
// square...
|
||||
} else if(h != w || mode == 'square'){
|
||||
var size = Math.min(w, h)
|
||||
image.css({
|
||||
width: size,
|
||||
height: size
|
||||
})
|
||||
centerImage(null, 'css')
|
||||
return 'square'
|
||||
|
||||
// viewer size...
|
||||
} else {
|
||||
var viewer = $('.viewer')
|
||||
var W = viewer.innerWidth()
|
||||
var H = viewer.innerHeight()
|
||||
|
||||
if(W > H){
|
||||
image.css('width', W * h/H)
|
||||
} else {
|
||||
image.css('height', H * w/W)
|
||||
}
|
||||
centerImage(null, 'css')
|
||||
return 'viewer'
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
// NOTE: to avoid state sync problems this should clone an image if
|
||||
// one is available...
|
||||
function createImage(n){
|
||||
if(n == null){
|
||||
if(window._n == null){
|
||||
window._n = 0
|
||||
}
|
||||
n = _n
|
||||
_n += 1
|
||||
}
|
||||
var img = $('.image')
|
||||
if(img.length > 0){
|
||||
return img.first().clone()
|
||||
.attr({
|
||||
'order': n,
|
||||
// need to strip extra classes...
|
||||
'class': 'image'
|
||||
})
|
||||
} else {
|
||||
return $('<div order="'+n+'" class="image"/>')
|
||||
}
|
||||
}
|
||||
|
||||
// This will create a set of new images, reusing a list of existing
|
||||
// elements if given.
|
||||
// XXX do we need this???
|
||||
function createImages(need, have){
|
||||
have = have == null ? [] : have
|
||||
|
||||
// we have enough elements in the cache...
|
||||
if(have.length >= need){
|
||||
return $(have.splice(0, need))
|
||||
|
||||
// need to create additional elements...
|
||||
} else {
|
||||
return $(have.toArray().concat(new Array(need - have.length)))
|
||||
.map(function(i, elem){
|
||||
if(elem != null){
|
||||
return elem
|
||||
}
|
||||
return createImage()[0]
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
function createRibbon(){
|
||||
return $('<div class="ribbon"/>')
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
// NOTE: if this returns null, it means that the element is smallest in
|
||||
// target ribbon -- first position.
|
||||
function getImageBefore(image, ribbon, visible_only){
|
||||
image = $(image)
|
||||
if(ribbon == null){
|
||||
ribbon = image.closest('.ribbon')
|
||||
}
|
||||
// pre marked-only mode...
|
||||
//var images = $(ribbon).find('.image')
|
||||
if(visible_only){
|
||||
var images = $(ribbon).find('.image').filter(':visible')
|
||||
} else {
|
||||
var images = $(ribbon).find('.image')
|
||||
}
|
||||
var order = image.attr('order')
|
||||
var prev = null
|
||||
|
||||
images.each(function(){
|
||||
if(order < $(this).attr('order')){
|
||||
return false
|
||||
}
|
||||
prev = this
|
||||
})
|
||||
|
||||
return $(prev)
|
||||
}
|
||||
|
||||
|
||||
function shiftTo(image, ribbon){
|
||||
var target = getImageBefore(image, ribbon)
|
||||
var cur_ribbon = image.closest('.ribbon')
|
||||
|
||||
// insert before the first image if nothing is before the target...
|
||||
if(target.length == 0){
|
||||
image.prependTo($(ribbon))
|
||||
|
||||
} else {
|
||||
image.insertAfter(target)
|
||||
}
|
||||
|
||||
// if removing last image out of a ribbon, remove the ribbon....
|
||||
if(cur_ribbon.find('.image').length == 0){
|
||||
cur_ribbon.remove()
|
||||
}
|
||||
|
||||
return image
|
||||
}
|
||||
|
||||
function shiftImage(direction, image, force_create_ribbon){
|
||||
if(image == null){
|
||||
// XXX need to make this context specific...
|
||||
image = $('.current.image')
|
||||
} else {
|
||||
image = $(image)
|
||||
}
|
||||
var old_ribbon = image.closest('.ribbon')
|
||||
var ribbon = old_ribbon[direction]('.ribbon')
|
||||
|
||||
// need to create a new ribbon...
|
||||
if(ribbon.length == 0 || force_create_ribbon == true){
|
||||
ribbon = createRibbon()['insert' + (direction == 'prev'
|
||||
? 'Before'
|
||||
: 'After')](old_ribbon)
|
||||
shiftTo(image, ribbon)
|
||||
} else {
|
||||
shiftTo(image, ribbon)
|
||||
}
|
||||
return image
|
||||
}
|
||||
|
||||
|
||||
function focusImage(image){
|
||||
image.closest('.viewer').find('.current.image').removeClass('current')
|
||||
return image.addClass('current')
|
||||
}
|
||||
|
||||
|
||||
// Alignment API...
|
||||
// ...tried to make this as brain-dead-stupidly-simple as possible...
|
||||
function relativeVisualPosition(outer, inner){
|
||||
outer = $(outer).offset()
|
||||
inner = $(inner).offset()
|
||||
return {
|
||||
top: inner.top - outer.top,
|
||||
left: inner.left - outer.left
|
||||
}
|
||||
}
|
||||
|
||||
// This appears to work well with scaling...
|
||||
// XXX make this more configurable...
|
||||
// XXX this only works for square images...
|
||||
function centerImage(image, mode){
|
||||
if(mode == null){
|
||||
//mode = 'css'
|
||||
mode = 'animate'
|
||||
}
|
||||
if(image == null || image.length == 0){
|
||||
image = $('.current.image')
|
||||
}
|
||||
var viewer = $('.viewer')
|
||||
// XXX should these be "inner"???
|
||||
var W = viewer.innerWidth()
|
||||
var H = viewer.innerHeight()
|
||||
|
||||
var ribbons = $('.ribbon-set')
|
||||
var scale = getElementScale(ribbons)
|
||||
// NOTE: these are scalable, this needs to get normalized...
|
||||
var w = image.outerWidth()*scale
|
||||
var h = image.outerHeight()*scale
|
||||
|
||||
var pos = relativeVisualPosition(viewer, image)
|
||||
|
||||
// zero out top/left if set to anything other than a specific number...
|
||||
var t = parseFloat(ribbons.css('top'))
|
||||
t = t ? t : 0
|
||||
var l = parseFloat(ribbons.css('left'))
|
||||
l = l ? l : 0
|
||||
|
||||
// do the actual work...
|
||||
return ribbons[mode]({
|
||||
'top': t - pos.top + (H - h)/2,
|
||||
'left': l - pos.left + (W - w)/2
|
||||
})
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* Infinite ribbon machinery
|
||||
*/
|
||||
|
||||
// XXX need mechanics to populate the images or to connect such
|
||||
// functionality...
|
||||
// ...this is to be done in the loader...
|
||||
|
||||
// NOTE: negative left or right will contract the ribbon...
|
||||
function extendRibbon(left, right, ribbon){
|
||||
ribbon = ribbon == null ?
|
||||
$('.current.image').closest('.ribbon')
|
||||
: $(ribbon)
|
||||
left = left == null ? 0 : left
|
||||
right = right == null ? 0 : right
|
||||
var images = ribbon.children('.image')
|
||||
var removed = []
|
||||
var res = {
|
||||
left: [],
|
||||
right: []
|
||||
}
|
||||
|
||||
// truncate...
|
||||
// NOTE: we save the detached elements to reuse them on extending,
|
||||
// if needed...
|
||||
if(left < 0){
|
||||
removed = $(images.splice(0, -left)).detach()
|
||||
}
|
||||
if(right < 0){
|
||||
var l = images.length
|
||||
removed = $(images.splice(l+right, l)).detach()
|
||||
}
|
||||
|
||||
// extend...
|
||||
if (left > 0){
|
||||
res.left = createImages(left, removed).prependTo(ribbon)
|
||||
}
|
||||
if (right > 0){
|
||||
res.right = createImages(right, removed).appendTo(ribbon)
|
||||
}
|
||||
|
||||
return res
|
||||
}
|
||||
|
||||
|
||||
// Roll the ribbon n positions to the left.
|
||||
//
|
||||
// NOTE: if n is negative the ribbon will be rolled right.
|
||||
// NOTE: rollRibbon(N, R) is equivalent to extendRibbon(-N, N, R)
|
||||
// NOTE: this will return a single list of relocated elements...
|
||||
function rollRibbon(n, ribbon){
|
||||
var res = extendRibbon(-n, n, ribbon)
|
||||
return n > 0 ? res.right : res.left
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* User actions
|
||||
*/
|
||||
|
||||
// basic navigation actions...
|
||||
function nextImage(){
|
||||
return centerImage(
|
||||
focusImage(
|
||||
// pre marked-only mode...
|
||||
//$('.current.image').next('.image')))
|
||||
$('.current.image').next('.image:visible')))
|
||||
}
|
||||
function prevImage(){
|
||||
return centerImage(
|
||||
focusImage(
|
||||
// pre marked-only mode...
|
||||
//$('.current.image').prev('.image')))
|
||||
$('.current.image').prev('.image:visible')))
|
||||
}
|
||||
function firstImage(){
|
||||
return centerImage(
|
||||
focusImage(
|
||||
// pre marked-only mode...
|
||||
//$('.current.image').closest('.ribbon').find('.image').first()))
|
||||
$('.current.image').closest('.ribbon').find('.image').filter(':visible').first()))
|
||||
}
|
||||
function lastImage(){
|
||||
return centerImage(
|
||||
focusImage(
|
||||
// pre marked-only mode...
|
||||
//$('.current.image').closest('.ribbon').find('.image').last()))
|
||||
$('.current.image').closest('.ribbon').find('.image').filter(':visible').last()))
|
||||
}
|
||||
|
||||
|
||||
function nextMarkedImage(){
|
||||
return centerImage(
|
||||
focusImage(
|
||||
// pre marked-only mode...
|
||||
//$('.current.image').next('.marked.image')))
|
||||
$('.current.image').next('.marked.image:visible')))
|
||||
}
|
||||
function prevMarkedImage(){
|
||||
return centerImage(
|
||||
focusImage(
|
||||
// pre marked-only mode...
|
||||
//$('.current.image').prev('.marked.image')))
|
||||
$('.current.image').prev('.marked.image:visible')))
|
||||
}
|
||||
|
||||
|
||||
|
||||
// NOTE: if moving is 'next' these will chose the image after the current's order.
|
||||
// NOTE: if an image with the same order is found, moving argument has no effect.
|
||||
// XXX get move direction...
|
||||
function prevRibbon(moving){
|
||||
var cur = $('.current.image')
|
||||
// pre marked-only mode...
|
||||
//var target = getImageBefore(cur, cur.closest('.ribbon').prev('.ribbon'))
|
||||
var target = getImageBefore(cur, cur.closest('.ribbon').prev('.ribbon:visible'), true)
|
||||
if(moving == 'next' && cur.attr('order') != target.attr('order')){
|
||||
var next = target.next('.image')
|
||||
target = next.length > 0 ? next : target
|
||||
}
|
||||
return centerImage(focusImage(target))
|
||||
}
|
||||
// XXX get move direction...
|
||||
function nextRibbon(moving){
|
||||
var cur = $('.current.image')
|
||||
// pre marked-only mode...
|
||||
//var target = getImageBefore(cur, cur.closest('.ribbon').next('.ribbon'))
|
||||
var target = getImageBefore(cur, cur.closest('.ribbon').next('.ribbon:visible'), true)
|
||||
if(moving == 'next' && cur.attr('order') != target.attr('order')){
|
||||
var next = target.next('.image')
|
||||
target = next.length > 0 ? next : target
|
||||
}
|
||||
return centerImage(focusImage(target))
|
||||
}
|
||||
|
||||
|
||||
|
||||
// XXX get move direction...
|
||||
function _shiftImageTo(image, direction, moving, force_create_ribbon){
|
||||
if(image == null){
|
||||
image = $('.current.image')
|
||||
}
|
||||
|
||||
// account move for direction...
|
||||
// XXX get the value from some place more logical than the argument...
|
||||
var a = moving == 'prev' ? 'prev' : 'next'
|
||||
var b = moving == 'prev' ? 'next' : 'prev'
|
||||
var target = image[a]('.image')
|
||||
|
||||
target = target.length == 0 ? image[b]() : target
|
||||
|
||||
// XXX should this be in here or coupled later via an event???
|
||||
flashIndicator(direction)
|
||||
|
||||
shiftImage(direction, image, force_create_ribbon)
|
||||
// XXX does this need to be animated???
|
||||
return centerImage(focusImage(target), 'css')
|
||||
}
|
||||
function shiftImageUp(image){
|
||||
return _shiftImageTo(image, 'prev')
|
||||
}
|
||||
function shiftImageDown(image){
|
||||
return _shiftImageTo(image, 'next')
|
||||
}
|
||||
function shiftImageUpNewRibbon(image){
|
||||
return _shiftImageTo(image, 'prev', true)
|
||||
}
|
||||
function shiftImageDownNewRibbon(image){
|
||||
return _shiftImageTo(image, 'prev', false)
|
||||
}
|
||||
|
||||
|
||||
// TODO manual image ordering (shiftLeft/shiftRight functions)
|
||||
// XXX
|
||||
|
||||
function fitNImages(n){
|
||||
var image = $('.current.image')
|
||||
var size = image.outerHeight(true)
|
||||
|
||||
var viewer = $('.viewer')
|
||||
var W = viewer.innerWidth()
|
||||
var H = viewer.innerHeight()
|
||||
|
||||
var scale = Math.min(W / (size * n), H / size)
|
||||
|
||||
// XXX if animating, the next two likes must be animated together...
|
||||
setElementScale($('.ribbon-set'), scale)
|
||||
centerImage(image, 'css')
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* Event handlers...
|
||||
*/
|
||||
|
||||
// NOTE: this is on purpose done relative...
|
||||
function clickHandler(evt){
|
||||
var img = $(evt.target).closest('.image')
|
||||
|
||||
centerImage(
|
||||
focusImage(img))
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
// setup...
|
||||
$(function(){
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user