mirror of
https://github.com/flynx/PortableMag.git
synced 2025-10-29 11:10:08 +00:00
the scroller framework almost generic, lots of minor tweeks...
Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
parent
3f4f2e3859
commit
d0f4d57c5b
@ -114,18 +114,22 @@ $(document).ready(function(){
|
||||
|
||||
|
||||
window.THRESHOLD = 10
|
||||
var scroller = makeScrollHandler($('.viewer'), function(speed, distance){
|
||||
// XXX this is not too correct...
|
||||
// ...make this mode specific...
|
||||
if(getMagazineScale() >= 1){
|
||||
var cur = $('.current.page')
|
||||
if(distance > THRESHOLD){
|
||||
return nextPage(cur)
|
||||
} else if(distance < -THRESHOLD){
|
||||
return prevPage(cur)
|
||||
window.MagazineScroller = makeScrollHandler($('.viewer'), {
|
||||
hScroll: true,
|
||||
vScroll: false,
|
||||
callback: function(speed, distance){
|
||||
// XXX this is not too correct...
|
||||
// ...make this mode specific...
|
||||
if(getMagazineScale() >= 1){
|
||||
var cur = $('.current.page')
|
||||
if(distance > THRESHOLD){
|
||||
return nextPage(cur)
|
||||
} else if(distance < -THRESHOLD){
|
||||
return prevPage(cur)
|
||||
}
|
||||
}
|
||||
}
|
||||
setCurrentPage()
|
||||
setCurrentPage()
|
||||
},
|
||||
}).start()
|
||||
|
||||
//setMagazineScale(0.5)
|
||||
|
||||
93
layout.js
93
layout.js
@ -44,6 +44,7 @@ var togglePageView = createCSSClassToggler(
|
||||
|
||||
// XXX this is not correct...
|
||||
// ...need to fit one rectangel (page) into another (viewer)
|
||||
// ...use the implementation in magazine.js
|
||||
if(W >= H){
|
||||
// fit to width...
|
||||
var scale = W/w
|
||||
@ -80,13 +81,16 @@ var togglePageView = createCSSClassToggler(
|
||||
// XXX should we use a callback or an event???
|
||||
// XXX make this get the scrolled item automatically...
|
||||
// ...now $('.magazine') is hardcoded...
|
||||
function makeScrollHandler(root, callback){
|
||||
function makeScrollHandler(root, config){
|
||||
root = $(root)
|
||||
|
||||
// local data...
|
||||
var scrolled
|
||||
var scrolling = false
|
||||
var touch = false
|
||||
var touches = 0
|
||||
var start
|
||||
var start_x
|
||||
var start_y
|
||||
var prev_x
|
||||
var prev_y
|
||||
var prev_t
|
||||
@ -97,41 +101,35 @@ function makeScrollHandler(root, callback){
|
||||
var y
|
||||
var t
|
||||
var dx
|
||||
var dy
|
||||
var dt
|
||||
|
||||
// XXX at this point this is not used...
|
||||
var config = {
|
||||
hScroll: true,
|
||||
vScroll: false,
|
||||
|
||||
enableEvents: false,
|
||||
autoCancelEvents: false,
|
||||
eventBounds: 5,
|
||||
}
|
||||
|
||||
function startMoveHandler(evt, callback){
|
||||
prev_t = event.timeStamp || Date.now();
|
||||
if(config.autoCancelEvents){
|
||||
if(scroller.options.autoCancelEvents){
|
||||
bounds = {
|
||||
left: config.eventBounds,
|
||||
right: root.width() - config.eventBounds,
|
||||
top: config.eventBounds,
|
||||
bottom: root.height() - config.eventBounds
|
||||
left: scroller.options.eventBounds,
|
||||
right: root.width() - scroller.options.eventBounds,
|
||||
top: scroller.options.eventBounds,
|
||||
bottom: root.height() - scroller.options.eventBounds
|
||||
}
|
||||
}
|
||||
setTransitionDuration($('.magazine'), 0)
|
||||
scrolled = $(root.children()[0])
|
||||
setTransitionDuration(scrolled, 0)
|
||||
if(event.touches != null){
|
||||
touch = true
|
||||
}
|
||||
scrolling = true
|
||||
scroller.state = 'scrolling'
|
||||
//root.trigger('userScrollStart')
|
||||
scroller.options.enabelStartEvent && root.trigger('userScrollStart')
|
||||
//togglePageDragging('on')
|
||||
shift = getMagazineShift()
|
||||
scale = getMagazineScale()
|
||||
shift = getElementShift(scrolled)
|
||||
scale = getElementScale(scrolled)
|
||||
// get the user coords...
|
||||
prev_x = touch ? event.touches[0].pageX : evt.clientX
|
||||
start = prev_x
|
||||
start_x = prev_x
|
||||
prev_y = touch ? event.touches[0].pageY : evt.clientY
|
||||
start_y = prev_y
|
||||
|
||||
return false
|
||||
}
|
||||
@ -143,13 +141,14 @@ function makeScrollHandler(root, callback){
|
||||
t = event.timeStamp || Date.now();
|
||||
// get the user coords...
|
||||
x = touch ? event.touches[0].pageX : evt.clientX
|
||||
y = touch ? event.touches[0].pageY : evt.clientY
|
||||
touches = touch ? event.touches.length : 0
|
||||
|
||||
// XXX needs testing...
|
||||
// check scroll bounds...
|
||||
if(bounds != null){
|
||||
if(config.hScroll && (x <= bounds.left || x >= bounds.right)
|
||||
|| config.vScroll && (y <= bounds.top || y >= bounds.bottom)){
|
||||
if(scroller.options.hScroll && (x <= bounds.left || x >= bounds.right)
|
||||
|| scroller.options.vScroll && (y <= bounds.top || y >= bounds.bottom)){
|
||||
// XXX cancel the touch event and trigger the end handler...
|
||||
return endMoveHandler(evt)
|
||||
}
|
||||
@ -157,17 +156,24 @@ function makeScrollHandler(root, callback){
|
||||
|
||||
// do the actual scroll...
|
||||
if(scrolling){
|
||||
shift += x - prev_x
|
||||
setElementTransform($('.magazine'), shift, scale)
|
||||
if(scroller.options.hScroll){
|
||||
shift.left += x - prev_x
|
||||
}
|
||||
if(scroller.options.vScroll){
|
||||
shift.top += y - prev_y
|
||||
}
|
||||
setElementTransform(scrolled, shift, scale)
|
||||
|
||||
// XXX these should be done every time the event is caught or
|
||||
// just while scrolling?
|
||||
dx = x - prev_x
|
||||
dy = y - prev_y
|
||||
dt = t - prev_t
|
||||
prev_t = t
|
||||
prev_x = x
|
||||
prev_y = y
|
||||
prev_t = t
|
||||
|
||||
//root.trigger('userScroll')
|
||||
scroller.options.enableUserScrollEvent && root.trigger('userScroll')
|
||||
}
|
||||
return false
|
||||
}
|
||||
@ -175,20 +181,34 @@ function makeScrollHandler(root, callback){
|
||||
// XXX get real transition duration...
|
||||
setTransitionDuration($('.magazine'), 200)
|
||||
x = touch ? event.changedTouches[0].pageX : evt.clientX
|
||||
y = touch ? event.changedTouches[0].pageY : evt.clientY
|
||||
touch = false
|
||||
scrolling = false
|
||||
scroller.state = 'waiting'
|
||||
touches = 0
|
||||
bounds = null
|
||||
//togglePageDragging('off')
|
||||
// XXX add speed to this...
|
||||
//root.trigger('userScrollEnd')
|
||||
callback && callback(dx/dt, start - x)
|
||||
scroller.options.enableEndEvent && root.trigger('userScrollEnd', dx, dy, dt, start_x, start_y)
|
||||
scroller.options.callback && scroller.options.callback(dx/dt, start_x-x)
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
var scroller = {
|
||||
options: {
|
||||
hScroll: true,
|
||||
vScroll: true,
|
||||
|
||||
enabelStartEvent: false,
|
||||
enableUserScrollEvent: false,
|
||||
enableEndEvent: false,
|
||||
|
||||
autoCancelEvents: false,
|
||||
eventBounds: 5,
|
||||
|
||||
callback: null
|
||||
},
|
||||
|
||||
start: function(){
|
||||
this.state = 'waiting'
|
||||
// XXX STUB: this makes starting the scroll a bit sluggish,
|
||||
@ -233,6 +253,12 @@ function makeScrollHandler(root, callback){
|
||||
// NOTE: this is updated live but not used by the system in any way...
|
||||
state: 'stopped'
|
||||
}
|
||||
|
||||
// merge the config with the defaults...
|
||||
if(config != null){
|
||||
$.extend(scroller.options, config)
|
||||
}
|
||||
|
||||
return scroller
|
||||
}
|
||||
|
||||
@ -274,15 +300,18 @@ function getMagazineOffset(page, scale, align){
|
||||
var offset = $('.viewer').width()/2 - (page.width()/2)*scale
|
||||
}
|
||||
|
||||
// NOTE: this without scaling also represents the inner width of
|
||||
// the viewer...
|
||||
var w = mag.outerWidth(true)
|
||||
// XXX this depends on scale...
|
||||
var pos = page.position().left//*scale
|
||||
|
||||
var l = 0
|
||||
|
||||
return -((w - w*scale)/2 + pos) + offset
|
||||
}
|
||||
|
||||
|
||||
// XXX make this work for narrow and left/right alligned pages...
|
||||
function getPageNumber(page){
|
||||
// a page is given explicitly, get the next one...
|
||||
if(page != null){
|
||||
|
||||
31
lib/jli.js
31
lib/jli.js
@ -196,14 +196,27 @@ function unanimated(obj, func, time){
|
||||
|
||||
// NOTE: at this point this works only on the X axis...
|
||||
function setElementTransform(elem, offset, scale){
|
||||
elem = $(elem)
|
||||
if(offset == null){
|
||||
var offset = getElementShift(elem).left
|
||||
offset = getElementShift(elem)
|
||||
// number -- only the x coord...
|
||||
} else if(typeof(offset) == typeof(1)){
|
||||
offset = {
|
||||
left: offset,
|
||||
top: 0
|
||||
}
|
||||
// array...
|
||||
} else if(offset.indexOf){
|
||||
offset = {
|
||||
left: offset[0] ? offset[0] : 0,
|
||||
top: offset[1] ? offset[1] : 0
|
||||
}
|
||||
}
|
||||
if(scale == null){
|
||||
var scale = getElementScale(elem)
|
||||
}
|
||||
if(USE_TRANSFORM){
|
||||
var transform = 'translate('+ offset +'px, 0px) scale('+ scale +') translateZ(0px)'
|
||||
var transform = 'translate('+ offset.left +'px, '+ offset.top +'px) scale('+ scale +') translateZ(0px)'
|
||||
elem.css({
|
||||
'-ms-transform' : transform,
|
||||
'-webkit-transform' : transform,
|
||||
@ -212,14 +225,17 @@ function setElementTransform(elem, offset, scale){
|
||||
'transform' : transform,
|
||||
|
||||
// XXX can we avoid this here??
|
||||
left: 0
|
||||
left: 0,
|
||||
// XXX is this correct???
|
||||
top: ''
|
||||
})
|
||||
} else {
|
||||
var transform = 'translate(0px, 0px) scale('+ scale +') translateZ(0px)'
|
||||
elem.css({
|
||||
// NOTE: this will be wrong during a transition, that's why we
|
||||
// can pass the pre-calculated offset as an argument...
|
||||
left: offset,
|
||||
left: offset.left,
|
||||
top: offset.top,
|
||||
|
||||
// XXX can we avoid this here??
|
||||
'-ms-transform' : transform,
|
||||
@ -284,15 +300,16 @@ function getElementShift(elem){
|
||||
if(!transform || transform == 'none'){
|
||||
return {left: 0, top: 0}
|
||||
}
|
||||
res = /(translate\(|matrix\([^,]*,[^,]*,[^,]*,[^,]*,)([^,]*),([^\)]*)\)/.exec(transform)
|
||||
return {
|
||||
left: parseFloat(/(translate\(|matrix\([^,]*,[^,]*,[^,]*,[^,]*,)([^,]*),/.exec(transform)[2]),
|
||||
top: null
|
||||
left: parseFloat(res[2]),
|
||||
top: parseFloat(res[3])
|
||||
}
|
||||
// using left...
|
||||
} else {
|
||||
return {
|
||||
left: elem.position().left,
|
||||
top: null
|
||||
top: elem.position().top
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user