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Code Issues Releases Wiki Activity

offline storage

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This commit is contained in:
Fred Chasen 2013-01-22 22:20:39 -08:00
parent 8e6f8289ca
commit 0690ad97d0
11 changed files with 926 additions and 342 deletions
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49
fpjs/render/book.js
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@ -15,15 +15,16 @@ FP.Book = function(elem, bookUrl){
this.createEvent("book:bookReady");
this.createEvent("book:chapterReady");
this.createEvent("book:resized");
this.createEvent("book:stored");
this.initialize(this.el);
this.online = navigator.onLine;
this.listeners();
//-- Determine storage type
// options: none | ram
FP.storage.storageMethod("indexedDB");
//-- Determine storage method
//-- Override options: none | ram | websql | indexedDB | filesystem
this.determineStorageMethod();
// BookUrl is optional, but if present start loading process
if(bookUrl) {
@ -412,20 +413,20 @@ FP.Book.prototype.nextPage = function(){
}
}
FP.Book.prototype.prevPage = function(){
FP.Book.prototype.prevPage = function() {
var prev = this.currentChapter.prevPage();
if(!prev){
this.prevChapter();
}
}
FP.Book.prototype.nextChapter = function(){
FP.Book.prototype.nextChapter = function() {
this.spinePos++;
this.displayChapter(this.spinePos);
}
FP.Book.prototype.prevChapter = function(){
FP.Book.prototype.prevChapter = function() {
this.spinePos--;
this.displayChapter(this.spinePos, true);
@ -433,27 +434,53 @@ FP.Book.prototype.prevChapter = function(){
FP.Book.prototype.getTOC = function(){
FP.Book.prototype.getTOC = function() {
return this.toc;
}
FP.Book.prototype.preloadNextChapter = function(){
FP.Book.prototype.preloadNextChapter = function() {
var next = this.spinePos + 1,
path = this.spine[next].href;
file = FP.storage.preload(path);
}
FP.Book.prototype.storeOffline = function(callback){
FP.Book.prototype.storeOffline = function(callback) {
var assets = FP.core.toArray(this.assets);
FP.storage.batch(assets, function(){
this.stored = 1;
localStorage.setItem("stored", 1);
this.tell("book:stored");
if(callback) callback();
}.bind(this));
}
FP.Book.prototype.availableOffline = function(){
FP.Book.prototype.availableOffline = function() {
return this.stored > 0 ? true : false;
}
FP.Book.prototype.determineStorageMethod = function(override) {
var method = 'ram';
// options: none | ram | websql | indexedDB | filesystem
if(override){
method = override;
}else{
if (Modernizr.websqldatabase) { method = "websql" }
if (Modernizr.indexeddb) { method = "indexedDB" }
if (Modernizr.filesystem) { method = "filesystem" }
}
FP.storage.storageMethod(method);
}
Modernizr.addTest('filesystem', function(){
var prefixes = Modernizr._domPrefixes;
for ( var i = -1, len = prefixes.length; ++i < len; ){
if ( window[prefixes[i] + 'RequestFileSystem'] ) return true;
}
return 'requestFileSystem' in window;
});