mirror of
https://github.com/flynx/ImageGrid.git
synced 2025-10-30 10:50:08 +00:00
299 lines
7.9 KiB
JavaScript
299 lines
7.9 KiB
JavaScript
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/**********************************************************************
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*
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* This is here for reference...
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*
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*
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**********************************************************************/
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((typeof define)[0]=='u'?function(f){module.exports=f(require)}:define)
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(function(require){ var module={} // make module AMD/node compatible...
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/*********************************************************************/
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var actions = require('lib/actions')
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var features = require('lib/features')
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var core = require('features/core')
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/*********************************************************************/
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// Mouse...
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// XXX add setup/taredown...
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var Clickable =
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module.Clickable = core.ImageGridFeatures.Feature({
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title: '',
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doc: '',
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tag: 'ui-clickable',
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depends: ['ui'],
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config: {
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'click-threshold': {
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t: 100,
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d: 5,
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},
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},
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handlers: [
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// setup click targets...
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// XXX click only if we did not drag...
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['updateImage',
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function(res, gid){
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var that = this
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var img = this.ribbons.getImage(gid)
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// set the clicker only once...
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if(!img.prop('clickable')){
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var x, y, t, last, threshold
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img
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.prop('clickable', true)
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.on('mousedown touchstart', function(evt){
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threshold = that.config['click-threshold']
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x = evt.clientX
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y = evt.clientY
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t = Date.now()
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})
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.on('mouseup touchend', function(evt){
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if(that.__control_in_progress){
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return
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}
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// prevent another handler within a timeout...
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// XXX not too sure about this...
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if(t - last < threshold.t){
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return
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}
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// constrain distance between down and up events...
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if(x != null
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&& Math.max(
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Math.abs(x - evt.clientX),
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Math.abs(y - evt.clientY)) < threshold.d){
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// this will prevent double clicks...
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x = null
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y = null
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that.focusImage(that.ribbons.getElemGID($(this)))
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last = Date.now()
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}
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})
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}
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}],
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],
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})
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/*********************************************************************/
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// Touch/Control...
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// XXX add zoom...
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// XXX add vertical pan to ribbon-set...
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var DirectControlHammer =
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module.DirectControlHammer = core.ImageGridFeatures.Feature({
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title: '',
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doc: '',
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tag: 'ui-direct-control-hammer',
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exclusive: ['ui-control'],
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depends: [
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'ui',
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// this is only used to trigger reoad...
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//'ui-partial-ribbons',
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],
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config: {
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// This can be:
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// 'silent' - silently focus central image after pan
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// true - focus central image after pan
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// null - do nothing.
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'focus-central-image': 'silent',
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},
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// XXX add setup/taredown...
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// XXX add inertia...
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// XXX hide current image indicator on drag...
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// XXX add swipe up/down control...
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// XXX add mode switching....
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// XXX BUG: after panning and silent focus, marking works correctly
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// but image is not updated -- mark not drawn...
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handlers: [
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// setup ribbon dragging...
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// XXX it is possible to drag over the loaded ribbon section with
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// two fingers, need to force update somehow...
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// ...and need to try and make the update in a single frame...
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// Ways to go:
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// - update on touchdown
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// - update on liftoff
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// XXX drag in single image mode ONLY if image is larger than screen...
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['updateRibbon',
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function(_, target){
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var that = this
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var r = this.ribbons.getRibbon(target)
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// setup dragging...
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if(r.length > 0 && !r.hasClass('draggable')){
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r
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.addClass('draggable')
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.hammer()
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.on('pan', function(evt){
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//evt.stopPropagation()
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// XXX stop all previous animations...
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//r.velocity("stop")
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var d = that.ribbons.dom
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var s = that.scale
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var g = evt.gesture
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var data = r.data('drag-data')
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// we just started...
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if(!data){
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that.__control_in_progress = (that.__control_in_progress || 0) + 1
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// hide and remove current image indicator...
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// NOTE: it will be reconstructed on
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// next .focusImage(..)
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var m = that.ribbons.viewer
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.find('.current-marker')
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.velocity({opacity: 0}, {
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duration: 100,
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complete: function(){
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m.remove()
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},
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})
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// store initial position...
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var data = {
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left: d.getOffset(this).left
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}
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r.data('drag-data', data)
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}
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// do the actual move...
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d.setOffset(this, data.left + (g.deltaX / s))
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// when done...
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if(g.isFinal){
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r.removeData('drag-data')
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// XXX this seems to have trouble with off-screen images...
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var central = that.ribbons.getImageByPosition('center', r)
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// load stuff if needed...
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that.updateRibbon(central)
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// XXX add inertia....
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//console.log('!!!!', g.velocityX)
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//r.velocity({
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// translateX: (data.left + g.deltaX + (g.velocityX * 10)) +'px'
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//}, 'easeInSine')
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// silently focus central image...
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if(that.config['focus-central-image'] == 'silent'){
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that.data.current = that.ribbons.getElemGID(central)
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// focus central image in a normal manner...
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} else if(that.config['focus-central-image']){
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that.focusImage(that.ribbons.getElemGID(central))
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}
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setTimeout(function(){
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that.__control_in_progress -= 1
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if(that.__control_in_progress <= 0){
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delete that.__control_in_progress
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}
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}, 50)
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}
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})
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}
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}],
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],
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})
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// XXX try direct control with hammer.js
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// XXX load state from config...
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// XXX sometimes this makes the indicator hang for longer than needed...
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// XXX BUG: this conflicts a bit whith ui-clickable...
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// ...use this with hammer.js taps instead...
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// XXX might be a good idea to make a universal and extensible control
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// mode toggler...
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// ...obvious chice would seem to be a meta toggler:
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// config['control-mode'] = {
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// <mode-name>: <mode-toggler>
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// }
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// and the action will toggle the given mode on and the previous
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// off...
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// XXX this seems a bit too complicated...
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var IndirectControl =
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module.IndirectControl = core.ImageGridFeatures.Feature({
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title: '',
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doc: '',
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tag: 'ui-indirect-control',
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// XXX is this correct???
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exclusive: ['ui-control'],
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depends: ['ui'],
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config: {
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},
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actions: actions.Actions({
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toggleSwipeHandling:['Interface/Toggle indirect control swipe handling',
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toggler.Toggler(null,
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function(_, state){
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if(state == null){
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return (this.ribbons
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&& this.ribbons.viewer
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&& this.ribbons.viewer.data('hammer'))
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|| 'none'
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// on...
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} else if(state == 'handling-swipes'){
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var that = this
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var viewer = this.ribbons.viewer
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// prevent multiple handlers...
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if(viewer.data('hammer') != null){
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return
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}
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viewer.hammer()
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var h = viewer.data('hammer')
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h.get('swipe').set({direction: Hammer.DIRECTION_ALL})
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viewer
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.on('swipeleft', function(){ that.nextImage() })
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.on('swiperight', function(){ that.prevImage() })
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.on('swipeup', function(){ that.shiftImageUp() })
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.on('swipedown', function(){ that.shiftImageDown() })
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// off...
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} else {
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this.ribbons.viewer
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.off('swipeleft')
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.off('swiperight')
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.off('swipeup')
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.off('swipedown')
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.removeData('hammer')
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}
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},
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'handling-swipes')],
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}),
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handlers: [
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['load',
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function(){ a.toggleSwipeHandling('on') }],
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['stop',
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function(){ a.toggleSwipeHandling('off') }],
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],
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})
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/**********************************************************************
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* vim:set ts=4 sw=4 : */ return module })
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