mirror of
https://github.com/flynx/PortableMag.git
synced 2025-10-29 11:10:08 +00:00
400 lines
8.8 KiB
JavaScript
Executable File
400 lines
8.8 KiB
JavaScript
Executable File
/**********************************************************************
|
|
**********************************************************************/
|
|
|
|
var DEBUG = true
|
|
|
|
// number of pages to display in ribbon...
|
|
var PAGES_IN_RIBBON = 6
|
|
|
|
// if true, expand a page to fit the whole view in single page mode...
|
|
var FIT_PAGE_TO_VIEW = false
|
|
|
|
|
|
|
|
|
|
/*********************************************************************/
|
|
// toggles .dragging CSS class on the viewer while dragging is in
|
|
// progress.
|
|
// NOTE: this is used mostly for styling and drag assisting...
|
|
togglePageDragging = createCSSClassToggler(
|
|
'.viewer',
|
|
'dragging')
|
|
|
|
|
|
// toggle between the two main modes:
|
|
// - single page mode (.page-view-mode)
|
|
// - thumbnail/ribbon mode
|
|
togglePageView = createCSSClassToggler(
|
|
'.viewer',
|
|
'page-view-mode',
|
|
null,
|
|
// post-change callback...
|
|
function(){
|
|
if(togglePageView('?') == 'on'){
|
|
fitNPages(1)
|
|
} else {
|
|
fitNPages(PAGES_IN_RIBBON)
|
|
}
|
|
})
|
|
|
|
|
|
|
|
|
|
/********************************************************* helpers ***/
|
|
|
|
function getPageScale(){
|
|
return getElementScale($('.scaler'))
|
|
}
|
|
|
|
|
|
function getPageNumber(page){
|
|
if(page == null){
|
|
page = $('.current.page')
|
|
}
|
|
return $('.page').index(page)
|
|
}
|
|
|
|
|
|
|
|
/************************************************** event handlers ***/
|
|
|
|
function swipeHandler(evt, phase, direction, distance, duration, fingers){
|
|
var pages = $('.page')
|
|
var cur = $('.current.page')
|
|
var n = pages.index(cur)
|
|
var scale = getPageScale()
|
|
var mag = $('.magazine')
|
|
|
|
if(phase=='move' && (direction=='left' || direction=='right')){
|
|
mag.addClass('unanimated')
|
|
if(direction == 'left'){
|
|
$('.magazine').css({left: -n*cur.width()-distance/scale})
|
|
} else if(direction == 'right') {
|
|
$('.magazine').css({left: -n*cur.width()+distance/scale})
|
|
}
|
|
setTimeout(function(){mag.removeClass('unanimated')}, 5)
|
|
|
|
} else if(phase == 'start') {
|
|
togglePageDragging('on')
|
|
|
|
} else if(phase == 'cancel') {
|
|
togglePageDragging('off')
|
|
setCurrentPage()
|
|
|
|
} else if(phase =='end' ) {
|
|
togglePageDragging('off')
|
|
// see which page is closer to the middle of the screen and set it...
|
|
// do this based on how much we dragged...
|
|
var p = Math.ceil((distance/scale)/cur.width())
|
|
|
|
// prev page...
|
|
if(direction == 'right') {
|
|
// two+ fingers moves to closest article...
|
|
if(fingers >= 2){
|
|
prevArticle()
|
|
} else {
|
|
setCurrentPage(Math.max(n-p, 0))
|
|
}
|
|
// next page...
|
|
} else if(direction == 'left'){
|
|
// two+ fingers moves to closest article...
|
|
if(fingers >= 2){
|
|
nextArticle()
|
|
} else {
|
|
setCurrentPage(Math.min(n+p, pages.length-1))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/********************************************************** layout ***/
|
|
|
|
// XXX for some magical reason this is not called...
|
|
function fitNPages(n, fit_to_content){
|
|
if(n == null){
|
|
n = 1
|
|
}
|
|
if(n > 1 && fit_to_content == null){
|
|
fit_to_content = true
|
|
}
|
|
var view = $('.viewer')
|
|
var page = $('.page')
|
|
var content = $('.content')
|
|
|
|
var W = view.width()
|
|
var H = view.height()
|
|
var cW = content.width()
|
|
var cH = content.height()
|
|
|
|
var rW = cW
|
|
var scale = getPageScale()
|
|
|
|
if(fit_to_content){
|
|
page.width(cW)
|
|
page.height(cH)
|
|
if(W/H > (cW*n)/cH){
|
|
scale = H/cH
|
|
} else {
|
|
scale = W/(cW*n)
|
|
}
|
|
// resulting page width...
|
|
var rW = cW
|
|
} else {
|
|
// need to calc width only...
|
|
if(W/H > (cW*n)/cH){
|
|
scale = H/cH
|
|
page.width(W/scale)
|
|
page.height(cH)
|
|
// need to calc height only...
|
|
} else if(W/H > (cW*n)/cH){
|
|
scale = W/(cW*n)
|
|
page.height(H/scale)
|
|
page.width(cW)
|
|
// set both width and height to defaults (content and page ratios match)...
|
|
} else {
|
|
scale = W/(cW*n)
|
|
page.height(cH)
|
|
page.width(cW)
|
|
}
|
|
// resulting page width...
|
|
var rW = W/scale
|
|
}
|
|
|
|
// position the pages correctly...
|
|
$('.magazine').css({
|
|
'margin-left': -rW/2
|
|
})
|
|
|
|
// do the scaling...
|
|
setElementScale($('.scaler'), scale)
|
|
// fix position...
|
|
setCurrentPage(null, rW)
|
|
}
|
|
|
|
|
|
|
|
/********************************************************* actions ***/
|
|
|
|
function setCurrentPage(n, W){
|
|
if(n == null){
|
|
var cur = $('.current.page')
|
|
n = $('.page').index(cur)
|
|
} else if(typeof(n) == typeof(1)) {
|
|
var cur = $($('.page')[n])
|
|
} else {
|
|
var cur = $(n)
|
|
n = $('.page').index(cur)
|
|
}
|
|
|
|
$('.current.page').removeClass('current')
|
|
cur.addClass('current')
|
|
|
|
var mag = $('.magazine')
|
|
var W = W == null ? cur.width() : W
|
|
mag.css({left: -n*W})
|
|
|
|
// XXX should this be here???
|
|
saveState()
|
|
|
|
return cur
|
|
}
|
|
|
|
|
|
|
|
function goToMagazineCover(){
|
|
setCurrentPage(0)
|
|
}
|
|
function goToArticleCover(){
|
|
setCurrentPage($('.current.page').parents('.article').children('.page').first())
|
|
}
|
|
|
|
|
|
|
|
function nextPage(){
|
|
var pages = $('.page')
|
|
var cur = $('.current.page')
|
|
return setCurrentPage(Math.min(pages.index(cur)+1, pages.length-1))
|
|
}
|
|
function prevPage(){
|
|
var pages = $('.page')
|
|
var cur = $('.current.page')
|
|
return setCurrentPage(Math.max(pages.index(cur)-1, 0))
|
|
}
|
|
|
|
|
|
|
|
function nextArticle(){
|
|
var cur = $('.current.page').parents('.article')
|
|
// we are at the magazine cover...
|
|
if(cur.length == 0){
|
|
return setCurrentPage(
|
|
$('.article .page:first-child').first())
|
|
}
|
|
// just find the next one...
|
|
var articles = $('.article')
|
|
return setCurrentPage(
|
|
$(articles[Math.min(articles.index(cur)+1, articles.length-1)])
|
|
.children('.page')
|
|
.first())
|
|
|
|
}
|
|
function prevArticle(){
|
|
var cur = $('.current.page').parents('.article')
|
|
// we are at the magazine cover...
|
|
if(cur.length == 0){
|
|
//return $('.current.page')
|
|
return setCurrentPage()
|
|
}
|
|
// just find the prev one...
|
|
var articles = $('.article')
|
|
return setCurrentPage(
|
|
$(articles[Math.max(articles.index(cur)-1, 0)])
|
|
.children('.page')
|
|
.first())
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************** state ***/
|
|
|
|
// XXX make these magazine-specific...
|
|
// XXX BUG: if the hash url part coresponds to a real anchor the browser
|
|
// shifts the page, need to disable this...
|
|
// URL state managers...
|
|
function loadURLState(){
|
|
if(window.location.hash == ''){
|
|
return null
|
|
}
|
|
var anchor = window.location.hash.split('#')[1]
|
|
var n = parseInt(anchor)
|
|
if(typeof(n) == typeof(1) && n >= 0){
|
|
return n
|
|
|
|
// XXX add real external aliases...
|
|
} else if(anchor == 'thumbnails') {
|
|
togglePageView('off')
|
|
return getPageNumber()
|
|
|
|
} else if(anchor == 'home') {
|
|
return 0
|
|
|
|
} else if(anchor == 'end') {
|
|
return $('.page').length-1
|
|
|
|
// relative URLs...
|
|
} else if(anchor == 'next') {
|
|
nextPage()
|
|
return getPageNumber()
|
|
|
|
} else if(anchor == 'prev') {
|
|
prevPage()
|
|
return getPageNumber()
|
|
|
|
} else if(anchor == 'nextArticle') {
|
|
nextArticle()
|
|
return getPageNumber()
|
|
|
|
} else if(anchor == 'prevArticle') {
|
|
prevArticle()
|
|
return getPageNumber()
|
|
|
|
// hide all visible layers on current page...
|
|
} else if(anchor == 'hideLayers') {
|
|
$('.current.page .shown')
|
|
.addClass('hidden')
|
|
.removeClass('shown')
|
|
return getPageNumber()
|
|
|
|
} else {
|
|
var elem = $('[name='+anchor+']')
|
|
n = getPageNumber(elem.parents('.page'))
|
|
// toggle hidden/shown elements...
|
|
if(elem.hasClass('hidden')){
|
|
elem
|
|
.addClass('shown')
|
|
.removeClass('hidden')
|
|
} else if(elem.hasClass('shown')){
|
|
elem
|
|
.addClass('hidden')
|
|
.removeClass('shown')
|
|
}
|
|
return n
|
|
}
|
|
}
|
|
function saveURLState(){
|
|
var anchor = window.location.hash.split('#')[1]
|
|
var elem = $('[name='+anchor+']')
|
|
var page = elem
|
|
if(!page.hasClass('page')){
|
|
page = page.parents('.page')
|
|
}
|
|
var n = getPageNumber()
|
|
|
|
// decide which #URLs stay in the URL and which get replaces with a
|
|
// page number...
|
|
if(!elem.hasClass('shown') && !elem.hasClass('hidden')){
|
|
// XXX use real aliases...
|
|
// do not replace these urls with page numbers...
|
|
if(n == getPageNumber(page)
|
|
|| (anchor == 'home' && n == 0)
|
|
|| (anchor == 'end' && n == $('.page').length-1)){
|
|
return anchor
|
|
}
|
|
}
|
|
window.location.hash = n
|
|
return n
|
|
}
|
|
|
|
|
|
|
|
// local storage state managers...
|
|
function loadStorageState(){
|
|
return parseInt($.jStorage.get('current_page', 0))
|
|
}
|
|
function saveStorageState(){
|
|
$.jStorage.set('current_page', getPageNumber())
|
|
}
|
|
|
|
|
|
|
|
// generic state managers...
|
|
function loadState(){
|
|
var n = loadURLState()
|
|
if(n != null){
|
|
setCurrentPage(n)
|
|
} else {
|
|
setCurrentPage(loadStorageState())
|
|
}
|
|
}
|
|
function saveState(){
|
|
saveURLState()
|
|
saveStorageState()
|
|
}
|
|
|
|
|
|
|
|
/********************************************************** editor ***/
|
|
|
|
// XXX create magazine...
|
|
function createMagazine(){
|
|
}
|
|
|
|
|
|
|
|
// XXX create article (magazine, title, position)...
|
|
function createArticle(magazine, title){
|
|
}
|
|
|
|
|
|
|
|
// XXX create page (article, template, position)...
|
|
function createPage(article, template){
|
|
}
|
|
|
|
|
|
|
|
/*********************************************************************/
|
|
// vim:set ts=4 sw=4 :
|