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added undo action and moved the current image id from options to state structure...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2012-08-29 18:28:01 +04:00
parent 3c9e7106cf
commit 73a9c6f2da
1 changed files with 82 additions and 9 deletions
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89
ui/gallery-prototype.js
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@ -99,27 +99,79 @@ ImageGrid.GROUP('API',
}
}
}),
ImageGrid.ACTION({
doc: 'save state to local storage',
doc: 'Save state to local storage',
group: 'API',
display: false,
},
function save(){
$.jStorage.set(ImageGrid.option.KEY_NAME_CONFIG, ImageGrid.sync())
$.jStorage.set(ImageGrid.option.KEY_NAME_STATE, buildJSON())
function save(name){
if(name == null){
name = ''
// push the last config to a new version...
var history = $.jStorage.get(ImageGrid.option.KEY_NAME_HISTORY, [])
// XXX should we add a date?
history.push($.jStorage.get(ImageGrid.option.KEY_NAME_STATE))
// remove versions beyond ImageGrid.option.VERSIONS_TO_KEEP
var c = history.length - ImageGrid.option.VERSIONS_TO_KEEP
if(c > 0){
history.splice(0, c)
}
$.jStorage.set(ImageGrid.option.KEY_NAME_HISTORY, history)
} else {
name = '-' + name
}
$.jStorage.set(ImageGrid.option.KEY_NAME_CONFIG+name, ImageGrid.sync())
$.jStorage.set(ImageGrid.option.KEY_NAME_STATE+name, buildJSON())
}),
ImageGrid.ACTION({
doc: 'load state from local storage',
doc: 'Load state from local storage',
group: 'API',
display: false,
},
function load(){
loadJSON($.jStorage.get(ImageGrid.option.KEY_NAME_STATE, {}))
function load(name){
if(name == null){
name = ''
} else {
name = '-' + name
}
loadJSON($.jStorage.get(ImageGrid.option.KEY_NAME_STATE+name, {}))
// NOTE: we need to load the config ACTER the state as to be
// able to set correct state-related data like current
// image ID...
ImageGrid.set($.jStorage.get(ImageGrid.option.KEY_NAME_CONFIG, {}))
ImageGrid.set($.jStorage.get(ImageGrid.option.KEY_NAME_CONFIG+name, {}))
}),
ImageGrid.ACTION({
doc: 'Revert to last verison. if n is given then revert n versions back.\n\n'+
'NOTE: this will push the current state to history, thus '+
'enabling trivial redo.\n'+
'NOTE: if n is greater than 1 then all the skipped steps will '+
'get dropped.',
group: 'API',
display: false,
},
function undo(n){
if(n < 1){
return
}
if(n == null){
n = 1
}
var cur = buildJSON()
var history = $.jStorage.get(ImageGrid.option.KEY_NAME_HISTORY, [])
if(history.length <= n){
n = history.length-1
}
// do the loading...
var i = history.length - n
loadJSON(history[i])
// remove the history top...
history.splice(i, history.length)
// push the prev state to enable redo...
history.push(cur)
$.jStorage.set(ImageGrid.option.KEY_NAME_HISTORY, history)
}),
ImageGrid.ACTION({
doc: 'Sync and update option values.\n\n'+
'NOTE: this is here because JS has no direct way to '+
@ -196,12 +248,26 @@ ImageGrid.GROUP('State',
name: 'KEY_NAME_CONFIG',
title: 'Name of localStorage key to store config data.',
value: 'ImageGrid_config',
display: false,
}),
ImageGrid.OPTION({
name: 'KEY_NAME_STATE',
title: 'Name of localStorage key to store state.',
value: 'ImageGrid_state',
display: false,
}),
ImageGrid.OPTION({
name: 'KEY_NAME_HISTORY',
title: 'Name of localStorage key to store state history.',
value: 'ImageGrid_history',
display: false,
}),
ImageGrid.OPTION({
name: 'VERSIONS_TO_KEEP',
title: 'History depth.',
value: 10,
}),
/*
ImageGrid.OPTION({
name: 'CURRENT_IMAGE_ID',
doc: '',
@ -213,6 +279,7 @@ ImageGrid.GROUP('State',
return parseInt($('.current.image').attr('id'))
}
}),
*/
ImageGrid.OPTION({
name: 'BACKGROUND_MODES',
doc: 'list of available background styles.\n\n'+
@ -1037,6 +1104,7 @@ function loadImages(json){
*
* format:
* {
* position: <image-id>,
* ribbons: [
* <image-id>: {
* url: <image-URL>,
@ -1052,6 +1120,7 @@ function buildJSON(get_order){
}
var ribbons = $('.ribbon')
res = {
position: $('.current.image').attr('id'),
ribbons: []
}
for(var i=0; i < ribbons.length; i++){
@ -1097,7 +1166,11 @@ function loadJSON(data, set_order){
.appendTo(ribbon)
}
}
if(data.position != null){
$('#' + data.position).click()
} else {
$('.image').first().click()
}
}