mirror of
https://github.com/flynx/ImageGrid.git
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834 lines
21 KiB
JavaScript
Executable File
834 lines
21 KiB
JavaScript
Executable File
/**********************************************************************
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*
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*
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*
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**********************************************************************/
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define(function(require){ var module = {}
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console.log('>>> viewer')
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//var DEBUG = DEBUG != null ? DEBUG : true
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var actions = require('lib/actions')
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var data = require('data')
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var ribbons = require('ribbons')
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/*********************************************************************/
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// helpers...
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var reloadAfter =
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module.reloadAfter =
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function reloadAfter(transitions){
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return function(){
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// prevent animations form adding/removing ribbons...
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!transitions && this.ribbons.preventTransitions()
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return function(){
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// NOTE: this may seem like cheating, but .reload() should
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// be very efficient, reusing all of the items loaded...
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this.reload()
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!transitions && this.ribbons.restoreTransitions()
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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 Tasks to accomplish here:
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// - life-cycle actions/events
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// - setup
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// - reset
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// - "features" and the mechanism to turn them on or off (action-sets)
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//
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//
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var Client =
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module.Client =
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actions.Actions({
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// XXX should this be here???
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config: {
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'steps-to-change-direction': 3,
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'max-screen-images': 30,
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'zoom-step': 1.2,
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},
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// basic state...
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// NOTE: the setters in the following use the appropriate actions
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// so to avoid recursion do not use these in the specific
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// actions...
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// Base ribbon...
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get base(){
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return this.data == null ? null : this.data.base
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},
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set base(value){
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this.setBaseRibbon(value)
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},
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// Current image...
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get current(){
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return this.data == null ? null : this.data.current
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},
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set current(value){
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this.focusImage(value)
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},
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// Current ribbon...
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get currentRibbon(){
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return this.data == null ? null : this.data.getRibbon()
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},
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set currentRibbon(value){
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this.focusRibbon(value)
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},
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// Default direction...
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//
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// This can be 'left' or 'right', other values are ignored.
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//
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// The system has inertial direction change, after >N steps of
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// movement in one direction it takes N steps to reverse the default
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// direction.
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// The number of steps (N) is set in:
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// .config['steps-to-change-direction']
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//
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// NOTE: to force direction change append a '!' to the direction.
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// e.g. X.direction = 'left!'
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get direction(){
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return this._direction >= 0 ? 'right'
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: this._direction < 0 ? 'left'
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: 'right'
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},
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set direction(value){
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// force direction change...
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if(value.slice(-1) == '!'){
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this._direction = value == 'left!' ? -1
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: value == 'right!' ? 0
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: this._direction
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// 'update' direction...
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} else {
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value = value == 'left' ? -1
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: value == 'right' ? 1
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: 0
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var d = (this._direction || 0) + value
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var s = this.config['steps-to-change-direction']
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s = s < 1 ? 1 : s
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// cap the direction value between -s and s-1...
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// NOTE: we use s-1 instead of s as 0/null is a positive
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// direction...
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d = d >= s ? s-1 : d
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d = d < -s ? -s : d
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this._direction = d
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}
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},
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// basic life-cycle actions...
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//
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ready: [
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function(){
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// XXX setup empty state...
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}],
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load: [
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function(d){
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this.data = data.Data(d.data)
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}],
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clear: [
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function(){
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delete this.data
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}],
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// basic navigation...
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//
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focusImage: ['Focus image',
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function(img, list){
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this.data.focusImage(img, list)
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}],
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focusRibbon: ['Focus Ribbon',
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function(target){
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var data = this.data
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var r = data.getRibbon(target)
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if(r == null){
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return
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}
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var c = data.getRibbonOrder()
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var i = data.getRibbonOrder(r)
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// NOTE: we are not changing the direction here based on
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// this.direction as swap will confuse the user...
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var direction = c < i ? 'before' : 'after'
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var t = data.getImage(r, direction)
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// if there are no images in the requied direction, try the
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// other way...
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t = t == null ? data.getImage(r, direction == 'before' ? 'after' : 'before') : t
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this.focusImage(t, r)
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}],
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setBaseRibbon: ['Set base ribbon',
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function(target){ this.data.setBase(target) }],
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// shorthands for .focusImage(..) and .focusRibbon(..)...
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firstImage: ['Focus first image in current ribbon',
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function(){ this.focusImage('first') }],
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lastImage: ['Focus last image in current ribbon',
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function(){ this.focusImage('last') }],
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prevImage: ['Focus previous image',
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function(a){
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// keep track of traverse direction...
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this.direction = 'left'
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if(typeof(a) == typeof(123)){
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// XXX should this force direction change???
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this.focusImage(this.data.getImage('current', -a)
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// go to the first image if it's closer than s...
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|| this.data.getImage('first'))
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} else {
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this.focusImage('prev', a)
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}
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}],
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nextImage: ['Focus next image',
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function(a){
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// keep track of traverse direction...
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this.direction = 'right'
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if(typeof(a) == typeof(123)){
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// XXX should this force direction change???
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this.focusImage(this.data.getImage('current', a)
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// go to the first image if it's closer than s...
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|| this.data.getImage('last'))
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} else {
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this.focusImage('next', a)
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}
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}],
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prevImageInOrder: ['Focus previous image in order',
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function(){ this.prevImage(this.data.order) }],
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nextImageInOrder: ['Focus next image in order',
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function(){ this.nextImage(this.data.order) }],
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firstRibbon: ['Focus previous ribbon',
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function(){ this.focusRibbon('first') }],
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lastRibbon: ['Focus next ribbon',
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function(){ this.focusRibbon('last') }],
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prevRibbon: ['Focus previous ribbon',
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function(){ this.focusRibbon('before') }],
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nextRibbon: ['Focus next ribbon',
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function(){ this.focusRibbon('after') }],
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// basic ribbon editing...
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//
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// NOTE: for all of these, current/ribbon image is a default...
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// XXX to be used for things like mark/place and dragging...
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shiftImageTo: ['',
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function(target, to){
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// XXX
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}],
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shiftImageUp: ['Shift image up',
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'If implicitly shifting current image (i.e. no arguments), focus '
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+'will shift to the next or previous image in the current '
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+'ribbon depending on current direction.',
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function(target){
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// by default we need to focus another image in the same ribbon...
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if(target == null){
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var direction = this.direction == 'right' ? 'next' : 'prev'
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var cur = this.data.getImage()
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var next = this.data.getImage(direction)
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next = next == null
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? this.data.getImage(direction == 'next' ? 'prev' : 'next')
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: next
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this.data.shiftImageUp(cur)
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this.focusImage(next)
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// if a specific target is given, just shift it...
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} else {
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this.data.shiftImageUp(target)
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}
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}],
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shiftImageDown: ['Shift image down',
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'If implicitly shifting current image (i.e. no arguments), focus '
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+'will shift to the next or previous image in the current '
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+'ribbon depending on current direction.',
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function(target){
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// by default we need to focus another image in the same ribbon...
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if(target == null){
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var direction = this.direction == 'right' ? 'next' : 'prev'
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var cur = this.data.getImage()
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var next = this.data.getImage(direction)
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next = next == null
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? this.data.getImage(direction == 'next' ? 'prev' : 'next')
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: next
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this.data.shiftImageDown(cur)
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this.focusImage(next)
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// if a specific target is given, just shift it...
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} else {
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this.data.shiftImageDown(target)
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}
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}],
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shiftImageUpNewRibbon: ['Shift image up to a new empty ribbon',
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function(target){
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this.data.newRibbon(target)
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this.shiftImageUp(target)
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}],
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shiftImageDownNewRibbon: ['Shift image down to a new empty ribbon',
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function(target){
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this.data.newRibbon(target, 'below')
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this.shiftImageDown(target)
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}],
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shiftImageLeft: ['Shift image left',
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function(target){
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if(target == null){
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this.direction = 'left'
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}
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this.data.shiftImageLeft(target)
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this.focusImage()
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}],
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shiftImageRight: ['Shift image right',
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function(target){
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if(target == null){
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this.direction = 'right'
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}
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this.data.shiftImageRight(target)
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this.focusImage()
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}],
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shiftRibbonUp: ['Shift ribbon up',
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function(target){
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this.data.shiftRibbonUp(target)
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// XXX is this the right way to go/???
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this.focusImage()
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}],
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shiftRibbonDown: ['Shift ribbon down',
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function(target){
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this.data.shiftRibbonDown(target)
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// XXX is this the right way to go/???
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this.focusImage()
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}],
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reverseImages: ['Reverse image order',
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function(){ this.data.reverseImages() }],
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reverseRibbons: ['Reverse ribbon order',
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function(){ this.data.reverseRibbons() }],
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// XXX this also requires images...
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sortImages: [
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function(){ }],
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// basic image editing...
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//
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// XXX these are not data stuff... should this be split into a
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// separate images block???
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rotateCW: [
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function(){ }],
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rotateCCW: [
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function(){ }],
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flipVertical: [
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function(){ }],
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flipHorizontal: [
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function(){ }],
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// crop...
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//
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crop: [
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function(list, flatten){
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list = list || this.data.order
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if(this.crop_stack == null){
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this.crop_stack = []
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}
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this.crop_stack.push(this.data)
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this.data = this.data.crop(list, flatten)
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}],
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uncrop: ['Uncrop ribbons',
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function(level, restore_current){
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level = level || 1
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var cur = this.current
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if(this.crop_stack == null){
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return
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}
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// uncrop all...
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if(level == 'all'){
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this.data = this.crop_stack[0]
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this.crop_stack = []
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// get the element at level and drop the tail...
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} else {
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this.data = this.crop_stack.splice(-level, this.crop_stack.length)[0]
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}
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// by default set the current from the crop...
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if(!restore_current){
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this.data.focusImage(cur)
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}
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if(this.crop_stack.length == 0){
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delete this.crop_stack
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}
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}],
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uncropAll: ['',
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function(restore_current){ this.uncrop('all', restore_current) }],
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// XXX same as uncrop but will also try and merge changes...
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mergeCrop: ['',
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function(){
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// XXX
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}],
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})
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// XXX do partial loading...
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var Viewer =
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module.Viewer =
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actions.Actions(Client, {
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ready: [
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function(){
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// XXX setup empty state...
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}],
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load: [
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function(data){
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// recycle the viewer if one is not given specifically...
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var viewer = data.viewer
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viewer = viewer == null && this.ribbons != null
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? this.ribbons.viewer
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: viewer
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// XXX do we need to recycle the images???
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this.ribbons = ribbons.Ribbons(viewer, data.images)
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return function(){
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// XXX do a partial load...
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// XXX
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this.ribbons.updateData(this.data)
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this.focusImage()
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}
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}],
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reload: [
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function(){
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this.ribbons.updateData(this.data)
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this.focusImage()
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}],
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clear: [
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// XXX do we need to delete the ribbons???
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function(){
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this.ribbons.clear()
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delete this.ribbons
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}],
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// XXX move this to a viewer window action set
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close: ['Cloase viewer',
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function(){
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// XXX should we do anything else here like auto-save???
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window.close()
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}],
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// XXX where should toggleFullscreenMode(..) be defined...
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toggleFullScreen: ['',
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function(){
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toggleFullscreenMode()
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}],
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toggleSingleImage: ['',
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function(){
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// XXX
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}],
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// XXX revise this...
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showDevTools: ['',
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function(){
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if(window.showDevTools != null){
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showDevTools()
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}
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}],
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focusImage: [
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// XXX skip invisible ribbons (???)
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// XXX load data chunks...
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function(target, list){
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var ribbons = this.ribbons
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var data = this.data
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if(data == null){
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target = ribbons.focusImage(target)
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var gid = ribbons.getElemGID(target)
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}
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return function(){
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if(data != null){
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// use the data for all the heavy lifting...
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// NOTE: this will prevent sync errors...
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var gid = data.getImage()
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target = ribbons.focusImage(gid)
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// XXX see if we need to do some loading...
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// XXX
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}
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// align current ribbon...
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ribbons
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.centerRibbon(target)
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.centerImage(target)
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// align other ribbons...
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if(data != null){
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var ribbon = data.getRibbon(gid)
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for(var r in data.ribbons){
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// skip the current ribbon...
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if(r == ribbon){
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continue
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}
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// XXX skip off-screen ribbons...
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// XXX
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// center...
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// XXX is there a 'last' special case here???
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var t = data.getImage(gid, r)
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if(t == null){
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var f = data.getImage('first', r)
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// nothing found -- empty ribbon?
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if(f == null){
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continue
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}
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ribbons.centerImage(data.getImage('first', r), 'before')
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} else {
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ribbons.centerImage(t, 'after')
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}
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}
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}
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}
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}],
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setBaseRibbon: [
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function(target){
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var r = this.data.getRibbon(target)
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r = r == null ? this.ribbons.getRibbon(target) : r
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this.ribbons.setBaseRibbon(r)
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}],
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prevScreen: ['Focus previous image one screen width away',
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function(){
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this.prevImage(Math.round(this.ribbons.getScreenWidthImages()))
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}],
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nextScreen: ['Focus next image one screen width away',
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function(){
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this.nextImage(Math.round(this.ribbons.getScreenWidthImages()))
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}],
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// zooming...
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//
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// Zooming is done by multiplying the current scale by config['zoom-step']
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// and rounding to nearest discrete number of images to fit on screen.
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zoomIn: ['Zoom in',
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function(){
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this.ribbons.setOrigin()
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//var n = Math.round(this.ribbons.getScreenWidthImages())-1
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var d = this.config['zoom-step']
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var s = a.ribbons.getScale() * d
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var n = Math.floor(this.ribbons.getScreenWidthImages(s))
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this.fitImage(n <= 0 ? 1 : n)
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}],
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zoomOut: ['Zoom out',
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function(){
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this.ribbons.setOrigin()
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//var n = Math.round(this.ribbons.getScreenWidthImages())+1
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var d = this.config['zoom-step']
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var s = a.ribbons.getScale() / d
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var n = Math.ceil(this.ribbons.getScreenWidthImages(s))
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var max = this.config['max-screen-images']
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this.fitImage(n > max ? max : n)
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}],
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fitOrig: ['Fit to original scale',
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function(){
|
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this.ribbons.setScale(1)
|
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this.ribbons.updateImage('*')
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}],
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|
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// NOTE: if this gets a count argument it will fit count images,
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// default is one.
|
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fitImage: ['Fit image',
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function(count){
|
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this.ribbons.fitImage(count)
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this.ribbons.updateImage('*')
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}],
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fitTwo: ['Fit two images', function(){ this.fitImage(2) }],
|
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fitThree: ['Fit three images', function(){ this.fitImage(3) }],
|
|
fitFour: ['Fit four images', function(){ this.fitImage(4) }],
|
|
fitFive: ['Fit five images', function(){ this.fitImage(5) }],
|
|
fitSix: ['Fit six images', function(){ this.fitImage(6) }],
|
|
fitSeven: ['Fit seven images', function(){ this.fitImage(7) }],
|
|
fitEight: ['Fit eight images', function(){ this.fitImage(8) }],
|
|
fitNine: ['Fit nine images', function(){ this.fitImage(9) }],
|
|
fitTen: ['Fit ten images', function(){ this.fitImage(10) }],
|
|
fitEleven: ['Fit eleven images', function(){ this.fitImage(11) }],
|
|
fitTwelve: ['Fit twelve images', function(){ this.fitImage(12) }],
|
|
|
|
fitMax: ['Fit the maximum number of images',
|
|
function(){ this.fitImage(this.config['max-screen-images']) }],
|
|
|
|
// XXX
|
|
fitSmall: ['Show small image',
|
|
function(){ }],
|
|
// XXX
|
|
fitNormal: ['Show normal image',
|
|
function(){ }],
|
|
// XXX
|
|
fitScreen: ['Fit image to screen',
|
|
function(){ }],
|
|
|
|
|
|
// XXX are these cheating???
|
|
shiftImageUp: [ reloadAfter() ],
|
|
shiftImageDown: [ reloadAfter() ],
|
|
|
|
// NOTE: .shiftImageDownNewRibbon(..) and .shiftImageUpNewRibbon(..)
|
|
// are not needed here when doing a reload on vertical
|
|
// shifting...
|
|
|
|
shiftImageLeft: [
|
|
function(target){
|
|
this.ribbons.placeImage(target, -1)
|
|
}],
|
|
shiftImageRight: [
|
|
function(target){
|
|
this.ribbons.placeImage(target, 1)
|
|
}],
|
|
|
|
shiftRibbonUp: [
|
|
function(target){
|
|
target = this.ribbons.getRibbon(target)
|
|
var i = this.ribbons.getRibbonOrder(target)
|
|
if(i > 0){
|
|
this.ribbons.placeRibbon(target, i-1)
|
|
}
|
|
}],
|
|
shiftRibbonDown: [
|
|
function(target){
|
|
target = this.ribbons.getRibbon(target)
|
|
var i = this.ribbons.getRibbonOrder(target)
|
|
if(i < this.data.ribbon_order.length-1){
|
|
this.ribbons.placeRibbon(target, i+1)
|
|
}
|
|
}],
|
|
|
|
reverseImages: [ reloadAfter() ],
|
|
reverseRibbons: [ reloadAfter(true) ],
|
|
|
|
|
|
// basic image editing...
|
|
//
|
|
// XXX should these call .images.* or should it be done by data...
|
|
// ...I think that data is a better candidate as it should be
|
|
// standalone...
|
|
rotateCW: [
|
|
function(target){ this.ribbons.rotateCW(target) }],
|
|
rotateCCW: [
|
|
function(target){ this.ribbons.rotateCCW(target) }],
|
|
flipVertical: [
|
|
function(target){ this.ribbons.flipVertical(target) }],
|
|
flipHorizontal: [
|
|
function(target){ this.ribbons.flipHorizontal(target) }],
|
|
|
|
crop: [ reloadAfter() ],
|
|
uncrop: [ reloadAfter() ],
|
|
|
|
// XXX need flat version of these...
|
|
cropRibbon: ['Crop current ribbon',
|
|
function(ribbon, flatten){
|
|
ribbon = ribbon || 'current'
|
|
this.crop(this.data.getImages(ribbon), flatten)
|
|
}],
|
|
cropRibbonAndAbove: ['',
|
|
function(ribbon, flatten){
|
|
ribbon = ribbon || this.data.getRibbon()
|
|
|
|
var data = this.data
|
|
var that = this
|
|
|
|
var i = data.ribbon_order.indexOf(ribbon)
|
|
var ribbons = data.ribbon_order.slice(0, i)
|
|
var images = ribbons
|
|
.reduce(function(a, b){
|
|
return data.getImages(a).concat(data.getImages(b))
|
|
}, data.getImages(ribbon))
|
|
.compact()
|
|
|
|
this.crop(data.getImages(images), flatten)
|
|
}],
|
|
})
|
|
|
|
|
|
|
|
/*********************************************************************/
|
|
// XXX do a simple feature framework...
|
|
// ...need something like:
|
|
// Features(['feature_a', 'feature_b'], action).setup()
|
|
|
|
var Animation =
|
|
module.Animation = {
|
|
tag: 'ui-animation',
|
|
|
|
setup: function(actions){
|
|
var animate = function(target){
|
|
var s = this.ribbons.makeShadow(target, true)
|
|
return function(){ s() }
|
|
}
|
|
// NOTE: this will keep the shadow in place -- the shadow will not
|
|
// go to the mountain, the mountain will come to the shadow ;)
|
|
var noanimate = function(target){
|
|
var s = this.ribbons.makeShadow(target)
|
|
return function(){ s() }
|
|
}
|
|
var tag = this.tag
|
|
return actions
|
|
.on('shiftImageUp.pre', tag, animate)
|
|
.on('shiftImageDown.pre', tag, animate)
|
|
.on('shiftImageLeft.pre', tag, noanimate)
|
|
.on('shiftImageRight.pre', tag, noanimate)
|
|
},
|
|
remove: function(actions){
|
|
return actions.off('*', this.tag)
|
|
}
|
|
}
|
|
|
|
|
|
// XXX
|
|
var CurrentIndicator =
|
|
module.CurrentIndicator = {
|
|
tag: 'ui-current-indicator',
|
|
|
|
setup: function(actions){
|
|
},
|
|
remove: function(actions){
|
|
actions.viewer.find('.' + this.tag).remove()
|
|
return actions.off('*', this.tag)
|
|
},
|
|
}
|
|
|
|
|
|
var BoundsIndicators =
|
|
module.BoundsIndicators = {
|
|
tag: 'ui-bounds-indicators',
|
|
|
|
flashIndicator: function(viewer, direction){
|
|
var cls = {
|
|
// shift up/down...
|
|
up: '.up-indicator',
|
|
down: '.down-indicator',
|
|
// hit start/end/top/bottom of view...
|
|
start: '.start-indicator',
|
|
end: '.end-indicator',
|
|
top: '.top-indicator',
|
|
bottom: '.bottom-indicator',
|
|
}[direction]
|
|
|
|
var indicator = viewer.find(cls)
|
|
|
|
if(indicator.length == 0){
|
|
indicator = $('<div>')
|
|
.addClass(cls.replace('.', '') +' '+ this.tag)
|
|
.appendTo(viewer)
|
|
}
|
|
|
|
return indicator
|
|
// NOTE: this needs to be visible in all cases and key press
|
|
// rhythms...
|
|
.show()
|
|
.delay(100)
|
|
.fadeOut(300)
|
|
},
|
|
|
|
setup: function(actions){
|
|
var that = this
|
|
|
|
var didAdvance = function(indicator){
|
|
return function(){
|
|
var img = this.data.current
|
|
return function(){
|
|
if(img == this.data.current){
|
|
that.flashIndicator(actions.ribbons.viewer, indicator)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
var tag = this.tag
|
|
return actions
|
|
// basic navigation...
|
|
.on('nextImage.pre', tag, didAdvance('end'))
|
|
.on('prevImage.pre', tag, didAdvance('start'))
|
|
.on('nextRibbon.pre', tag, didAdvance('bottom'))
|
|
.on('prevRibbon.pre', tag, didAdvance('top'))
|
|
// XXX not sure about these...
|
|
.on('lastImage.pre', tag, didAdvance('end'))
|
|
.on('firstImage.pre', tag, didAdvance('start'))
|
|
.on('firstRibbon.pre', tag, didAdvance('top'))
|
|
.on('lastRibbon.pre', tag, didAdvance('bottom'))
|
|
|
|
// vertical shifting...
|
|
.on('shiftImageUp.post', tag,
|
|
function(){
|
|
that.flashIndicator(actions.ribbons.viewer, 'up')
|
|
})
|
|
.on('shiftImageDown.post', tag,
|
|
function(){
|
|
that.flashIndicator(actions.ribbons.viewer, 'down')
|
|
})
|
|
|
|
// horizontal shifting...
|
|
.on('shiftImageLeft.pre', tag,
|
|
function(target){
|
|
if(target == null
|
|
//&& actions.data.getImageOrder('ribbon') == 0){
|
|
&& actions.data.getImage('prev') == null){
|
|
that.flashIndicator(actions.ribbons.viewer, 'start')
|
|
}
|
|
})
|
|
.on('shiftImageRight.pre', tag,
|
|
function(target){
|
|
if(target == null
|
|
&& actions.data.getImage('next') == null){
|
|
that.flashIndicator(actions.ribbons.viewer, 'end')
|
|
}
|
|
})
|
|
},
|
|
remove: function(actions){
|
|
actions.viewer.find('.' + this.tag).remove()
|
|
return actions.off('*', this.tag)
|
|
},
|
|
}
|
|
|
|
|
|
|
|
/**********************************************************************
|
|
* vim:set ts=4 sw=4 : */
|
|
return module })
|