refactored DATA save mechanics, now only saves a file when it's updated (backwards compatible)...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>

ui/data.js

@@ -2210,6 +2210,8 @@ function alignRibbons(ribbon){
 
 	DATA = alignDataToRibbon(ribbon)
 
+	$('.viewer').trigger('ribbonsAligned', [ribbon])
+
 	reloadViewer(false)
 }
 
@@ -2258,6 +2260,8 @@ function loadRibbonsFromPath(path, cmp, reverse, dir_name){
 		reloadViewer(false)
 	}
 
+	$('.viewer').trigger('ribbonsLoadedFromPath', [path])
+
 	return DATA
 }
 
@@ -2283,6 +2287,21 @@ function setupData(viewer){
 	console.log('Data: setup...')
 
 	return viewer
+		// mark data updated...
+		// NOTE: manual data manipulation will dataUpdated() called 
+		// 		manually...
+		.on([
+			// ribbons.js API...
+			'shiftedImage',
+			'createdRibbon',
+			'removedRibbon',
+			// data.js API...
+			'ribbonsAligned',
+			'ribbonsLoadedFromPath',
+		].join(' '), function(){
+			dataUpdated()
+		})
+
 		// NOTE: we do not need to worry about explicit centering the ribbon 
 		//		here, just ball-park-load the correct batch...
 		// NOTE: if we decide to hide ribbons, uncomment the visibility 

ui/files.js

@@ -19,6 +19,8 @@ var IMAGES_DIFF_FILE_PATTERN = /^[0-9]*-images-diff.json$/
 var DATA_FILE_DEFAULT = 'data.json'
 var DATA_FILE_PATTERN = /^[0-9]*-data.json$/
 
+var CURRENT_FILE = 'current.json'
+
 var IMAGE_PATTERN = /.*\.(jpg|jpeg|png|gif)$/i
 
 
@@ -289,6 +291,25 @@ function runFileSavers(name, all){
 
 
 
+/*********************************************************************/
+// XXX should this be here or in data.js???
+
+var saveFileData = makeFileSaver(
+		'Data',
+		DATA_FILE_DEFAULT, 
+		function(){ 
+			var data = getAllData()
+			data.current = DATA.current
+			return data
+		})
+
+
+function dataUpdated(){
+	fileUpdated('Data')
+}
+
+
+
 /*********************************************************************/
 
 // Construct a ribbons hierarchy from the fav dirs structure
@@ -469,6 +490,17 @@ function loadFileState(path, prefix){
 				DATA = json
 				$.when(
 						// XXX load config...
+
+						// load current position...
+						bubbleProgress(prefix,
+								loadLatestFile(path, 
+									CURRENT_FILE,
+									null,
+									null,
+									DATA.current), res, true)
+							.done(function(cur){
+								DATA.current = cur
+							}),
 						// load images...
 						bubbleProgress(prefix,
 							loadFileImages(base), res, true),
@@ -505,7 +537,8 @@ function saveFileState(name, no_normalize_path){
 	name = name == null ? Date.timeStamp() : name
 
 	if(!no_normalize_path){
-		name = normalizePath(CONFIG.cache_dir_var +'/'+ name)
+		var path = normalizePath(CONFIG.cache_dir_var)
+		name = normalizePath(path +'/'+ name)
 
 	// write .image_file only if saving data to a non-cache dir...
 	// XXX check if this is correct...
@@ -515,10 +548,15 @@ function saveFileState(name, no_normalize_path){
 		}
 	}
 
+	/*
 	var data = getAllData()
 	data.current = DATA.current
 
 	dumpJSON(name + '-data.json', data)
+	*/
+
+	// allways update the current position...
+	dumpJSON(path + '/current.json', DATA.current)
 
 	// save the updated images...
 	if(IMAGES_UPDATED.length > 0){
@@ -530,6 +568,7 @@ function saveFileState(name, no_normalize_path){
 		IMAGES_UPDATED = []
 	}
 
+	// save the rest of the data...
 	runFileSavers(name)
 }
 

ui/sort.js

@@ -181,6 +181,7 @@ function reverseImageOrder(){
 		r.reverse()
 	})
 	reloadViewer(true)
+	$('.viewer').trigger('reversedImageOrder', [cmp])
 }
 
 
@@ -310,6 +311,7 @@ function sortImagesByFileNameSeqWithOverflow(reverse, proximity, overflow_gap, c
 	}
 
 	updateRibbonOrder()
+	$('.viewer').trigger('sortedImagesByFileNameSeqWithOverflow')
 }
 
 
@@ -354,6 +356,7 @@ function horizontalShiftImage(image, direction){
 
 	// update stuff that changed, mainly order...
 	updateImages()
+	$('.viewer').trigger('horizontalSiftedImage', [gid, direction])
 
 	return image
 }
@@ -420,6 +423,26 @@ function sortImagesDialog(){
 }
 
 
+/*********************************************************************/
+
+function setupSorting(viewer){
+	console.log('Sorting: setup...')
+
+	return viewer
+		// NOTE: manual data manipulation will dataUpdated() called 
+		// 		manually...
+		.on([
+			'reversedImageOrder',
+			'sortedImages',
+			'sortedImagesByFileNameSeqWithOverflow',
+			'horizontalSiftedImage'
+		].join(' '), function(){
+			dataUpdated()
+		})
+}
+SETUP_BINDINGS.push(setupSorting)
+
+
 
 /**********************************************************************
 * vim:set ts=4 sw=4 :                                                */