added skipping images one screen left/right, some more refactoring...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2012-08-10 19:40:26 +04:00
parent 3e7711e829
commit 85414c77fe
4 changed files with 120 additions and 91 deletions

View File

@ -52,7 +52,7 @@ function setup(){
setDefaultInitialState()
// XXX
setBackgroundMode('dark')
toggleSingleImageMode('off')
enableTransitions()
// setup event handlers...
@ -68,11 +68,6 @@ function setup(){
// XXX STUB
loadImages(image_list)
// setup the dragging framework...
// XXX make this work seamlessly with touchSwipe...
// XXX cancel clicks while dragging...
$('.field').draggable()
// set the default position and init...
$('.current.image').click()

View File

@ -1,6 +1,8 @@
// XXX need a uniform way to address images (filename?)
/******************************************* Setup Data and Globals **/
var DEBUG = true
// the list of style modes...
// these are swithched through in order by toggleBackgroundModes()
var BACKGROUND_MODES = [
@ -9,29 +11,50 @@ var BACKGROUND_MODES = [
]
// remember the default backgrounds for modes...
// ...this effectively makes the modes independant...
// NOTE: null represent the default value...
// NOTE: these will change if changed in runtime...
var NORMAL_MODE_BG = 'dark'
var SINGLE_IMAGE_MODE_BG = BACKGROUND_MODES[BACKGROUND_MODES.length-1]
// ribbon/single view modes...
// store the scale before we went into single image mode...
// NOTE: these will change if changed in runtime...
var ORIGINAL_FIELD_SCALE = 1.0
// this sets the zooming factor used in manual zooming...
var ZOOM_FACTOR = 2
// sets the amoun of move when a key is pressed...
// sets the amount of move when a key is pressed...
var MOVE_DELTA = 50
/********************************************************** Helpers **/
// this will create a function that will add/remove a css_class to elem
// calling the callbacks before and/or after.
// NOTE: of only one callback is given then it will be called after the
// class change...
// a way around this is to pass an empty function as callback_b
// calling the optional callbacks before and/or after.
//
// elem is a jquery compatible object; default use-case: a css selector.
//
// the resulting function understands the folowing arguments:
// - 'on' : switch mode on
// - 'off' : switch mode off
// - '?' : return current state ('on'|'off')
// - no arguments : toggle the state
//
// NOTE: of only one callback is given then it will be called after the
// class change...
// a way around this is to pass an empty function as callback_b
//
function createCSSClassToggler(elem, css_class, callback_a, callback_b){
// prepare the pre/post callbacks...
if(callback_b == null){
@ -204,9 +227,13 @@ function setupEvents(){
$('.current.image').click()
})
// keyboard...
$(document)
.keydown(makeKeyboardHandler(keybindings, function(k){alert(k)}))
//.keydown(handleKeys)
if(DEBUG){
$(document)
.keydown(makeKeyboardHandler(keybindings, function(k){alert(k)}))
} else {
$(document)
.keydown(makeKeyboardHandler(keybindings))
}
// swipe...
$('.viewer')
.swipe({
@ -215,13 +242,19 @@ function setupEvents(){
swipeUp: shiftImageUp,
swipeDown: shiftImageDown
})
// dragging...
// XXX make this work seamlessly with touchSwipe...
// XXX cancel clicks while dragging...
// XXX this does not work on android...
$('.field').draggable()
}
function setupControlElements(){
// images...
$(".image").click(setCurrentImage)
$(".image").click(handleImageClick)
// buttons...
$('.screen-button.next-image').click(nextImage)
@ -259,7 +292,7 @@ function loadImages(json){
.css({ 'background-image': 'url('+images[i]+')' })
// set a unique id for each image...
.attr({'id': i})
.click(setCurrentImage)
.click(handleImageClick)
.appendTo(ribbon)
}
ribbon.children().first().click()
@ -324,7 +357,7 @@ function loadJSON(data){
$('<div class="image"></div>')
.css({ 'background-image': 'url('+image.attr('url')+')' })
.attr({'id': j})
.click(setCurrentImage)
.click(handleImageClick)
.appendTo(ribbon)
}
}
@ -332,9 +365,10 @@ function loadJSON(data){
}
/*
* The folowing two functions will get the vertical and horizontal
* distance components between the pints a and A, centers of the small
* distance components between the points a and A, centers of the small
* and large squares respectively.
* One of the squares is .field and the other is .container,
* which is small or big is not important.
@ -382,9 +416,6 @@ function getCurrentVerticalOffset(image){
var mh = h - ribbons.outerHeight()
// current ribbon position (1-based)
var rn = ribbons.index(ribbon) + 1
// XXX compensating for margin error buildup... really odd!
// ...why is this still different for the first three ribbons?!
// ....sub-pixel error?
// relative position to field...
// XXX is there a better way to get this?
var t = rn * (h - mh/2)
@ -465,9 +496,13 @@ function alignRibbon(image, position){
return false
}
/*************************************************** Event Handlers **/
function setCurrentImage(){
// handle click for images...
function handleImageClick(){
// set classes...
$('.current').removeClass('current')
$(this)
@ -524,7 +559,7 @@ function alignRibbons(){
* Basic key format:
* <key-code> : <callback>,
* <key-code> : {
* default: [<callback>, <doc>],
* 'default': <callback>,
* // a modifier can be any single modifier, like shift or a
* // combination of modifers like 'ctrl+shift', given in order
* // of priority.
@ -570,7 +605,7 @@ function makeKeyboardHandler(keybindings, unhandled){
return false
}
} else {
// callback...
// simple callback...
handler()
return false
}
@ -583,52 +618,39 @@ function makeKeyboardHandler(keybindings, unhandled){
/************************************************************ Modes **/
// ribbon/single view modes...
// global: stores the scale before we went into single image mode...
// XXX HACK
var _ORIGINAL_FIELD_SCALE = 1
// remember the default backgrounds for modes...
// ...this effectively makes the modes independant...
// NOTE: null represent the default value...
// XXX HACK
var _NORMAL_MODE_BG = null
var _SINGLE_IMAGE_MODE_BG = BACKGROUND_MODES[BACKGROUND_MODES.length-1]
var toggleSingleImageMode = createCSSClassToggler('.viewer', 'single-image-mode',
// pre...
function(action){
if(action == 'on'){
_NORMAL_MODE_BG = getBackgroundMode()
_ORIGINAL_FIELD_SCALE = getElementScale($('.field'))
NORMAL_MODE_BG = getBackgroundMode()
ORIGINAL_FIELD_SCALE = getElementScale($('.field'))
} else {
_SINGLE_IMAGE_MODE_BG = getBackgroundMode()
SINGLE_IMAGE_MODE_BG = getBackgroundMode()
}
},
// post...
function(action){
if(action == 'on'){
fitImage()
setBackgroundMode(_SINGLE_IMAGE_MODE_BG)
setBackgroundMode(SINGLE_IMAGE_MODE_BG)
} else {
setContainerScale(_ORIGINAL_FIELD_SCALE)
setBackgroundMode(_NORMAL_MODE_BG)
setContainerScale(ORIGINAL_FIELD_SCALE)
setBackgroundMode(NORMAL_MODE_BG)
}
clickAfterTransitionsDone()
})
})
// wide view mode toggle...
var toggleWideView = createCSSClassToggler('.viewer', 'wide-view-mode', function(action){
if(action == 'on'){
_ORIGINAL_FIELD_SCALE = getElementScale($('.field'))
setContainerScale(0.1)
} else {
setContainerScale(_ORIGINAL_FIELD_SCALE)
}
}, function(){})
var toggleWideView = createCSSClassToggler('.viewer', 'wide-view-mode',
function(action){
if(action == 'on'){
ORIGINAL_FIELD_SCALE = getElementScale($('.field'))
setContainerScale(0.1)
} else {
setContainerScale(ORIGINAL_FIELD_SCALE)
}
}, function(){})
@ -741,7 +763,7 @@ function centerOrigin(){
// XXX for some odd reason these are not liner... something to do with origin?
// XXX these work oddly when page is scaled in maxthon...
// XXX virtually identical, see of can be merged...
function moveViewUp(){
var t = parseInt($('.field').css('top'))
@ -784,20 +806,40 @@ function centerCurrentImage(){
// basic navigation...
function firstImage(){
$('.current.ribbon').children('.image').first().click()
return $('.current.ribbon').children('.image').first().click()
}
function prevImage(){
$('.current.image').prev('.image').click()
return $('.current.image').prev('.image').click()
}
function nextImage(){
$('.current.image').next('.image').click()
return $('.current.image').next('.image').click()
}
function lastImage(){
$('.current.ribbon').children('.image').last().click()
return $('.current.ribbon').children('.image').last().click()
}
// XXX add skip N images back and forth handlers...
// XXX
// add skip screen images in direction...
function skipScreenImages(direction){
// calculate screen width in images...
var W = $('.viewer').width()
var w = $('.current.image').width()
var scale = getElementScale($('.field'))
var n = Math.max(Math.floor(W/(w*scale))-1, 0)
var img = $('.current.image')[direction + 'All']('.image').eq(n)
if(img.length > 0){
return img.click()
} else if(direction == 'next'){
return lastImage()
} else if(direction == 'prev'){
return firstImage()
}
}
var nextScreenImages = function(){ return skipScreenImages('next') }
var prevScreenImages = function(){ return skipScreenImages('prev') }
function focusRibbon(direction){
@ -808,20 +850,16 @@ function focusRibbon(direction){
// NOTE: direction is accounted for to make the up/down shifts
// symmetrical in the general case...
if(next.length == 0 || direction == 'next'){
prev.click()
return prev.click()
} else {
next.click()
return next.click()
}
} else {
$('.current.ribbon')[direction]('.ribbon').children('.image').first().click()
return $('.current.ribbon')[direction]('.ribbon').children('.image').first().click()
}
}
function focusAboveRibbon(){
focusRibbon('prev')
}
function focusBelowRibbon(){
focusRibbon('next')
}
var focusAboveRibbon = function(){ return focusRibbon('prev') }
var focusBelowRibbon = function(){ return focusRibbon('next') }
@ -855,7 +893,7 @@ function getElementScale(elem){
function setElementScale(elem, scale){
elem.css({
return elem.css({
'transform': 'scale('+scale+', '+scale+')',
'-moz-transform': 'scale('+scale+', '+scale+')',
'-o-transform': 'scale('+scale+', '+scale+')',
@ -867,9 +905,7 @@ function setElementScale(elem, scale){
function scaleContainerBy(factor){
var scale = getElementScale($('.field'))*factor
setContainerScale(scale)
return setContainerScale(getElementScale($('.field'))*factor)
}
@ -1019,19 +1055,11 @@ function shiftImage(direction){
.detach()
.prependTo($('.current.ribbon')[direction]('.ribbon'))
}
}
$('.current.image').click()
}
function shiftImageDown(){
return shiftImage('next')
}
function shiftImageUp(){
return shiftImage('prev')
}
var shiftImageDown = function(){ return shiftImage('next') }
var shiftImageUp = function(){ return shiftImage('prev') }

View File

@ -48,7 +48,8 @@ function setup(){
setDefaultInitialState()
// XXX
setBackgroundMode('dark')
// this will set the defaults...
toggleSingleImageMode('off')
enableTransitions()
// setup event handlers...
@ -64,11 +65,6 @@ function setup(){
// XXX STUB
loadImages(image_list)
// setup the dragging framework...
// XXX make this work seamlessly with touchSwipe...
// XXX cancel clicks while dragging...
$('.field').draggable()
// set the default position and init...
$('.current.image').click()

View File

@ -22,11 +22,21 @@ var keybindings = {
36: firstImage, // Home
35: lastImage, // End
37: prevImage, // Left
//37: prevImage, // Left
37: {
'default': prevImage, // Right
'ctrl': prevScreenImages, // ctrl-Right
'alt': prevScreenImages, // alt-Right
},
80: 37, // BkSp
188: 37, // p
8: 37, // <
39: nextImage, // Right
//39: nextImage, // Right
39: {
'default': nextImage, // Left
'ctrl': nextScreenImages, // ctrl-Left
'alt': nextScreenImages, // alt-Left
},
32: 39, // Space
190: 39, // m
78: 39, // >