mirror of
https://github.com/flynx/ImageGrid.git
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154 lines
2.8 KiB
JavaScript
Executable File
154 lines
2.8 KiB
JavaScript
Executable File
/**********************************************************************
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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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*
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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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data: {
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// current image...
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current: null,
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// images, hashed by GUID...
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images: {
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},
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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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}
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view: null,
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}
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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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}
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/**********************************************************************
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* User actions...
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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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*/
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function focusImage(n){
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// XXX
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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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}
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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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function focusRibbon(n){
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// XXX
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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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}
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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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function toggleMark(n){
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// XXX
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}
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/**********************************************************************
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* vim:set sw=4 ts=4 : */
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