mirror of
https://github.com/flynx/PortableMag.git
synced 2025-10-28 10:40:07 +00:00
moved some big-ish utils into their seporate modules...
Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
parent
7fea84da45
commit
c09e069dca
@ -62,6 +62,10 @@
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<script src="ext-lib/iscroll-custom.js"></script>
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<script src="lib/jli.js"></script>
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<script src="lib/scroller.js"></script>
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<script src="lib/keyboard.js"></script>
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<script src="lib/log.js"></script>
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<script src="magazine.js"></script>
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<script src="layout.js"></script>
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17
lib/_template.js
Executable file
17
lib/_template.js
Executable file
@ -0,0 +1,17 @@
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/**********************************************************************
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*
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*
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*
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**********************************************************************/
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//var DEBUG = DEBUG != null ? DEBUG : true
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/*********************************************************************/
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/**********************************************************************
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* vim:set ts=4 sw=4 : */
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690
lib/jli.js
690
lib/jli.js
@ -145,6 +145,7 @@ function createCSSClassToggler(elem, class_list, callback_a, callback_b){
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/*
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// show a jQuary opject in viewer overlay...
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// XXX need to set .scrollTop(0) when showing different UI...
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// ...and not set it when the UI is the same
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@ -177,6 +178,7 @@ function showInOverlay(obj){
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function overlayMessage(text){
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return showInOverlay($('<div class="overlay-message">' +text+ '</div>'))
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}
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*/
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@ -244,6 +246,7 @@ var getElementShift = makeCSSVendorAttrGetter(
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}
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})
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var DEFAULT_TRANSITION_DURATION = 200
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var getElementTransitionDuration = makeCSSVendorAttrGetter(
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@ -464,641 +467,6 @@ function setTransitionDuration(elem, ms){
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/************************************************* keyboard handler **/
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// NOTE: don't understand why am I the one who has to write this...
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var SPECIAL_KEYS = {
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// Special Keys...
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9: 'Tab', 33: 'PgUp', 45: 'Ins',
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13: 'Enter', 34: 'PgDown', 46: 'Del',
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16: 'Shift', 35: 'End', 80: 'Backspace',
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17: 'Ctrl', 36: 'Home', 91: 'Win',
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18: 'Alt', 37: 'Right', 93: 'Menu',
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20: 'Caps Lock',38: 'Up',
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27: 'Esc', 39: 'Left',
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32: 'Space', 40: 'Down',
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// Function Keys...
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112: 'F1', 116: 'F5', 120: 'F9',
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113: 'F2', 117: 'F6', 121: 'F10',
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114: 'F3', 118: 'F7', 122: 'F11',
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115: 'F4', 119: 'F8', 123: 'F12',
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}
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// XXX some keys look really wrong...
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function toKeyName(code){
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// check for special keys...
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var k = SPECIAL_KEYS[code]
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if(k != null){
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return k
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}
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// chars...
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k = String.fromCharCode(code)
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if(k != ''){
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return k.toLowerCase()
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}
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return null
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}
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// if set to false the event handlers will always return false...
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var KEYBOARD_HANDLER_PROPAGATE = true
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/* Basic key format:
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*
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* <key-code> : <callback>,
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*
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* <key-code> : {
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* 'default': <callback>,
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* // a modifier can be any single modifier, like shift or a
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* // combination of modifers like 'ctrl+shift', given in order
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* // of priority.
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* // supported modifiers are (in order of priority):
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* // - ctrl
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* // - alt
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* // - shift
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* <modifer>: [...]
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* },
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*
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* <key-code> : [
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* // this can be any type of handler except for an alias...
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* <handler>,
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* <doc>
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* ],
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*
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* // alias...
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* <key-code-a> : <key-code-b>,
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*
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* XXX might need to add meta information to generate sensible help...
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*/
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function makeKeyboardHandler(keybindings, unhandled){
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if(unhandled == null){
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//unhandled = function(){return false}
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unhandled = function(){return KEYBOARD_HANDLER_PROPAGATE}
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}
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return function(evt){
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var did_handling = false
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var res = null
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for(var mode in keybindings){
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if($(mode).length > 0){
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var bindings = keybindings[mode]
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var key = evt.keyCode
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if(bindings.ignore == '*'
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|| bindings.ignore != null && bindings.ignore.indexOf(key) != -1){
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// return true
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res = res == null ? true : res
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did_handling = true
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continue
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}
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// XXX ugly...
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var modifers = evt.ctrlKey ? 'ctrl' : ''
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modifers += evt.altKey ? (modifers != '' ? '+alt' : 'alt') : ''
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modifers += evt.shiftKey ? (modifers != '' ? '+shift' : 'shift') : ''
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var handler = bindings[key]
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// alias...
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while (typeof(handler) == typeof(123)) {
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handler = bindings[handler]
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}
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// no handler...
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if(handler == null){
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continue
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}
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// Array, lisp style with docs...
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// XXX for some odd reason in chrome typeof([]) == typeof({})!!!
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if(typeof(handler) == typeof([]) && handler.constructor.name == 'Array'){
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// we do not care about docs here, so just get the handler...
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handler = handler[0]
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}
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// complex handler...
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if(typeof(handler) == typeof({})){
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var callback = handler[modifers]
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if(callback == null){
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callback = handler['default']
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}
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if(callback != null){
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res = callback()
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did_handling = true
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continue
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}
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} else {
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// simple callback...
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res = handler()
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did_handling = true
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continue
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}
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}
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}
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if(!did_handling){
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// key is unhandled by any modes...
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return unhandled(key)
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} else {
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// XXX should we handle multiple hits???
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return KEYBOARD_HANDLER_PROPAGATE&&res?true:false
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}
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}
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}
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// click threshold in pixels, if the distance between start and end is
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// less than this, the whole event is considered a click and not a
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// drag/swipe...
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var CLICK_THRESHOLD = 10
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// if the amount of time to wait beween start and end is greater than this
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// the event is considered a long click.
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// NOTE: this will not auto-fire the event, the user MUST release first.
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var LONG_CLICK_THRESHOLD = 400
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// the maximum amount of time between clicks to count them together.
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// NOTE: if multi-clicks are disabled this has no effect.
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// NOTE: this is reset by the timeout explicitly set in the handler...
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// NOTE: this is the timeout between two consecutive clicks and not the total.
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// NOTE: if multiple clicks are enabled this will introduce a lag after
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// each click (while we wait for the next), so keep this as small
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// as possible.
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var MULTI_CLICK_TIMEOUT = 200
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// the amount of time between finger releases.
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// NOTE: when this is passed all the fingers released before are ignored.
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var MULTITOUCH_RELEASE_THRESHOLD = 100
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// XXX add a resonable cancel scheme...
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// ... something similar to touch threshold but bigger...
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// XXX handle multiple touches...
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// - timeout on lift to count fingers...
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// XXX setup basic styles for the contained element...
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// XXX revise...
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// XXX test on other devices...
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// XXX BUG: on landing a second finger while scrolling the things goes
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// haywhire...
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// ...check if this is gone...
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// XXX add something like a scrollTo that would understand elements as
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// well as explicit positions.
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// XXX split this into a seporate lib...
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function makeScrollHandler(root, config){
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root = $(root)
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// local data...
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var ignoring = false
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// XXX this and scroller.state are redundent...
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var scrolling = false
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var touch = false
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var touches = 0
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var max_dx = 0
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var max_dy = 0
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var cancelThreshold, scrolled
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// initial state...
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, start_x, start_y, start_t
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// previous state...
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, prev_x, prev_y, prev_t
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// current state...
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, x, y, t
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// state delta...
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, dx, dy, dt
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, shift
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, scale
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//, bounds
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function startMoveHandler(evt){
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var options = scroller.options
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// ignore...
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if(options.ignoreElements
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&& $(evt.target).closest(options.ignoreElements).length > 0
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|| scroller.state == 'paused'){
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ignoring = true
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return
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} else {
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ignoring = false
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}
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if(event.touches != null){
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touch = true
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}
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cancelThreshold = options.scrollCancelThreshold
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touches = touch ? event.touches.length : 1
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// if we are already touching then just skip on this...
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// XXX test this...
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if(touches > 1){
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return false
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}
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prev_t = event.timeStamp || Date.now();
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start_t = prev_t
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/*
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if(options.autoCancelEvents){
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bounds = {
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left: options.eventBounds,
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right: root.width() - options.eventBounds,
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top: options.eventBounds,
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bottom: root.height() - options.eventBounds
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}
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}
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*/
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//togglePageDragging('on')
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scrolled = $(root.children()[0])
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setTransitionDuration(scrolled, 0)
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// XXX these two are redundant...
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scrolling = true
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scroller.state = 'scrolling'
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options.enabelStartEvent && root.trigger('userScrollStart')
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// XXX do we need to pass something to this?
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options.preCallback && options.preCallback()
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shift = getElementShift(scrolled)
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scale = getElementScale(scrolled)
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// get the user coords...
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prev_x = touch ? event.touches[0].pageX : evt.clientX
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start_x = prev_x
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prev_y = touch ? event.touches[0].pageY : evt.clientY
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start_y = prev_y
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return false
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}
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// XXX try and make this adaptive to stay ahead of the lags...
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// NOTE: this does not support limiting the scroll, might be done in
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// the future though.
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// The way to go about this is to track scrolled size in the
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// callback...
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function moveHandler(evt){
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if(ignoring){
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return
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}
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var options = scroller.options
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evt.preventDefault()
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t = event.timeStamp || Date.now();
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// get the user coords...
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x = touch ? event.touches[0].pageX : evt.clientX
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y = touch ? event.touches[0].pageY : evt.clientY
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touches = touch ? event.touches.length : 1
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/*
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// XXX needs testing...
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// XXX do we need to account for scrollDisabled here???
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// check scroll bounds...
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if(bounds != null){
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if(options.hScroll && (x <= bounds.left || x >= bounds.right)
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|| options.vScroll && (y <= bounds.top || y >= bounds.bottom)){
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// XXX cancel the touch event and trigger the end handler...
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return endMoveHandler(evt)
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}
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}
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*/
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// do the actual scroll...
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if(!options.scrollDisabled && scrolling){
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if(options.hScroll){
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shift.left += x - prev_x
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}
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if(options.vScroll){
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shift.top += y - prev_y
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}
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setElementTransform(scrolled, shift, scale)
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// XXX these should be done every time the event is caught or
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// just while scrolling?
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dx = x - prev_x
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dy = y - prev_y
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max_dx += Math.abs(dx)
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max_dy += Math.abs(dy)
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dt = t - prev_t
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prev_x = x
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prev_y = y
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prev_t = t
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options.enableUserScrollEvent && root.trigger('userScroll')
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}
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return false
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}
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function endMoveHandler(evt){
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t = event.timeStamp || Date.now();
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touches = touch ? event.touches.length : 0
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if(ignoring){
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if(touches == 0){
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ignoring = false
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}
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return
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}
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var options = scroller.options
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// XXX get real transition duration...
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scroller.resetTransitions()
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x = touch ? event.changedTouches[0].pageX : evt.clientX
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y = touch ? event.changedTouches[0].pageY : evt.clientY
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// check if we are canceling...
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if(cancelThreshold
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&& Math.abs(start_x-x) < cancelThreshold
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&& Math.abs(start_y-y) < cancelThreshold
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&& (max_dx > cancelThreshold
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|| max_dy > cancelThreshold)){
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scroller.state = 'canceling'
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}
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var data = {
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orig_event: evt,
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scroller: scroller,
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speed: {
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x: dx/dt,
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y: dy/dt
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},
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distance: {
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x: start_x-x,
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y: start_y-y
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},
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duration: t-start_t,
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// current touches...
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touches: touches,
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clicks: null,
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}
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// XXX stop only if no fingers are touching or let the callback decide...
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//togglePageDragging('off')
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// XXX update this with the new data model!!! (see below)
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options.enableEndEvent && root.trigger('userScrollEnd', data)
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if(options.postCallback
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// XXX revise this....
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&& options.postCallback(data) === false
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|| touches == 0){
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// cleanup and stop...
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touch = false
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scrolling = false
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scroller.state = 'waiting'
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scrolled = null
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//bounds = null
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max_dx = 0
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max_dy = 0
|
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}
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return false
|
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}
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var scroller = {
|
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options: {
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// if one of these is false, it will restrict scrolling in
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// that direction. hScroll for horizontal and vScroll for
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// vertical.
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// NOTE: to disable scroll completely use scrollDisabled, see
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// below for details.
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hScroll: true,
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vScroll: true,
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// this will disable scroll.
|
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// NOTE: this is the same as setting both vScroll and hScroll
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// to false, but can be set and reset without affecting
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// the actual settings individually...
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// NOTE: this takes priority over hScroll/vScroll.
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scrollDisabled: false,
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// sets the default transition settings while not scrolling...
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transitionDuration: 200,
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transitionEasing: 'ease',
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// items to be ignored by the scroller...
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// this is a jQuery compatible selector.
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ignoreElements: '.noScroll',
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// this is the side of the rectangle in px, if the user moves
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// out of it, and then returns back, the action will get cancelled.
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// i.e. the callback will get called with the "cancelling" state.
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scrollCancelThreshold: 100,
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|
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// these control weather in-scroll events will get triggered.
|
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// NOTE: these may impact performance, especially the scroll
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// event, thus they need to enabled explicitly.
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enabelStartEvent: false,
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enableUserScrollEvent: false,
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enableEndEvent: false,
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/*
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// XXX padding within the target element moving out of which
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// will cancell the action...
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// XXX needs testing...
|
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autoCancelEvents: false,
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eventBounds: 5,
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*/
|
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// callback to be called when the user first touches the screen...
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preCallback: null,
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// callback to be called when the user lifts a finger/mouse.
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// NOTE: this may happen before the scroll is done, for instance
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// when one of several fingers participating in the action
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// gets lifted.
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// NOTE: if this returns false explicitly, this will stop scrolling.
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postCallback: postScrollCallback,
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// These are used by the default callback...
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// if true then doubleClick and multiClick events will get
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// triggered.
|
||||
// NOTE: this will introduce a lag needed to wait for next
|
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// clicks in a group.
|
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// NOTE: when this is false, shortClick is triggered for every
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// single click separately.
|
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enableMultiClicks: false,
|
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// NOTE: if these are null, respective values from the env will
|
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// be used.
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clickThreshold: null,
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longClickThreshold: null,
|
||||
multiClickTimeout: null,
|
||||
multitouchTimeout: null,
|
||||
},
|
||||
// NOTE: this is updated live but not used by the system in any way...
|
||||
state: 'stopped',
|
||||
root: root,
|
||||
|
||||
start: function(){
|
||||
if(this.state == 'paused'){
|
||||
this.state = 'waiting'
|
||||
} else {
|
||||
this.state = 'waiting'
|
||||
// XXX STUB: this makes starting the scroll a bit sluggish,
|
||||
// find a faster way...
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||||
//togglePageDragging('on')
|
||||
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||||
// NOTE: if we bind both touch and mouse events, on touch devices they
|
||||
// might start interfering with each other...
|
||||
if('ontouchmove' in window){
|
||||
root
|
||||
.on('touchstart', startMoveHandler)
|
||||
.on('touchmove', moveHandler)
|
||||
.on('touchend', endMoveHandler)
|
||||
.on('touchcancel', endMoveHandler)
|
||||
} else {
|
||||
root
|
||||
.on('mousedown', startMoveHandler)
|
||||
.on('mousemove', moveHandler)
|
||||
.on('mouseup', endMoveHandler)
|
||||
}
|
||||
}
|
||||
return this
|
||||
},
|
||||
// XXX test...
|
||||
pause: function(){
|
||||
this.state = 'paused'
|
||||
return this
|
||||
},
|
||||
stop: function(){
|
||||
if('ontouchmove' in window){
|
||||
root
|
||||
.off('touchstart', startMoveHandler)
|
||||
.off('touchmove', moveHandler)
|
||||
.off('touchend', endMoveHandler)
|
||||
} else {
|
||||
root
|
||||
.off('mousedown', startMoveHandler)
|
||||
.off('mousemove', moveHandler)
|
||||
.off('mouseup', endMoveHandler)
|
||||
}
|
||||
this.state = 'stopped'
|
||||
return this
|
||||
},
|
||||
resetTransitions: function(){
|
||||
var scrolled = this.root.children().first()
|
||||
setTransitionDuration(scrolled, this.options.transitionDuration)
|
||||
setTransitionEasing(scrolled, this.options.transitionEasing)
|
||||
}
|
||||
}
|
||||
|
||||
// merge the config with the defaults...
|
||||
if(config != null){
|
||||
$.extend(scroller.options, config)
|
||||
}
|
||||
|
||||
return scroller
|
||||
}
|
||||
|
||||
// default callback...
|
||||
// This will provide support for the folowing events on the scroll root
|
||||
// element:
|
||||
// - scrollCancelled
|
||||
//
|
||||
// - shortClick
|
||||
// - doubleClick
|
||||
// - multiClick
|
||||
// this will store the number of clicks in data.clicks
|
||||
// - longClick
|
||||
//
|
||||
// - swipeLeft
|
||||
// - swipeRight
|
||||
// - swipeUp
|
||||
// - swipeDown
|
||||
//
|
||||
// - screenReleased
|
||||
//
|
||||
// NOTE: data.touches passed to the event is the number of touches
|
||||
// released within the multitouchTimeout.
|
||||
// this differs from what postScrollCallback actually gets in the
|
||||
// same field when it recieves the object.
|
||||
// XXX add generic snap
|
||||
// XXX add generic innertial scroll
|
||||
// XXX test multiple touches...
|
||||
function postScrollCallback(data){
|
||||
var scroller = data.scroller
|
||||
var options = scroller.options
|
||||
var root = scroller.root
|
||||
var clickThreshold = options.clickThreshold || CLICK_THRESHOLD
|
||||
var longClickThreshold = options.longClickThreshold || LONG_CLICK_THRESHOLD
|
||||
var multitouchTimeout = options.multitouchTimeout || MULTITOUCH_RELEASE_THRESHOLD
|
||||
var enableMultiClicks = options.enableMultiClicks
|
||||
var multiClickTimeout = options.multiClickTimeout || MULTI_CLICK_TIMEOUT
|
||||
|
||||
var now = Date.now();
|
||||
|
||||
// cancel event...
|
||||
if(scroller.state == 'canceling'){
|
||||
return root.trigger('scrollCancelled', data)
|
||||
}
|
||||
|
||||
// handle multiple touches...
|
||||
if(data.touches > 0){
|
||||
var then = scroller._last_touch_release
|
||||
if(then == null || now - then < multitouchTimeout){
|
||||
if(scroller._touches == null){
|
||||
scroller._touches = 1
|
||||
} else {
|
||||
scroller._touches += 1
|
||||
}
|
||||
} else {
|
||||
scroller._touches = null
|
||||
}
|
||||
// wait for the next touch release...
|
||||
scroller._last_touch_release = now
|
||||
return
|
||||
|
||||
// calculate how many touches did participate...
|
||||
} else {
|
||||
data.touches = scroller._touches ? scroller._touches + 1 : 1
|
||||
scroller._last_touch_release = null
|
||||
scroller._touches = null
|
||||
}
|
||||
|
||||
// clicks, double-clicks, multi-clicks and long-clicks...
|
||||
if(Math.max(
|
||||
Math.abs(data.distance.x),
|
||||
Math.abs(data.distance.y)) < clickThreshold){
|
||||
if(data.duration > longClickThreshold){
|
||||
return root.trigger('longClick', data)
|
||||
}
|
||||
if(!enableMultiClicks){
|
||||
return root.trigger('shortClick', data)
|
||||
|
||||
} else {
|
||||
// count the clicks so far...
|
||||
if(scroller._clicks == null){
|
||||
scroller._clicks = 1
|
||||
} else {
|
||||
scroller._clicks += 1
|
||||
}
|
||||
|
||||
// kill any previous waits...
|
||||
if(scroller._click_timeout_id != null){
|
||||
clearTimeout(scroller._click_timeout_id)
|
||||
}
|
||||
|
||||
// wait for the next click...
|
||||
scroller._click_timeout_id = setTimeout(function(){
|
||||
var clicks = scroller._clicks
|
||||
data.clicks = clicks
|
||||
if(clicks == 1){
|
||||
root.trigger('shortClick', data)
|
||||
} else if(clicks == 2){
|
||||
root.trigger('doubleClick', data)
|
||||
} else {
|
||||
root.trigger('multiClick', data)
|
||||
}
|
||||
scroller._clicks = null
|
||||
scroller._click_timeout_id = null
|
||||
}, multiClickTimeout)
|
||||
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// swipes...
|
||||
// XXX might be a good idea to chain these with swipe and screenReleased
|
||||
if(Math.abs(data.distance.x) > Math.abs(data.distance.y)){
|
||||
if(data.distance.x <= -clickThreshold && root.data('events').swipeLeft){
|
||||
return root.trigger('swipeLeft', data)
|
||||
} else if(data.distance.x >= clickThreshold && root.data('events').swipeRight){
|
||||
return root.trigger('swipeRight', data)
|
||||
}
|
||||
} else {
|
||||
if(data.distance.y <= -clickThreshold && root.data('events').swipeUp){
|
||||
return root.trigger('swipeUp', data)
|
||||
} else if(data.distance.y >= clickThreshold && root.data('events').swipeDown){
|
||||
return root.trigger('swipeDown', data)
|
||||
}
|
||||
}
|
||||
|
||||
// this is triggered of no swipes were handled...
|
||||
return root.trigger('screenReleased', data)
|
||||
}
|
||||
|
||||
|
||||
|
||||
/************************************************ jQuery extensions **/
|
||||
|
||||
@ -1145,57 +513,5 @@ var cancelAnimationFrame = (window.cancelRequestAnimationFrame
|
||||
|
||||
|
||||
|
||||
|
||||
/********************************************************** logger ***/
|
||||
|
||||
function Logger(){
|
||||
_log = null
|
||||
return {
|
||||
setup: function(){
|
||||
if(_log == null){
|
||||
_log = $('<div id="log"></div>')
|
||||
.css({
|
||||
position: 'fixed',
|
||||
background: 'silver',
|
||||
opacity: 0.5,
|
||||
width: 200,
|
||||
height: '80%',
|
||||
top: 10,
|
||||
left: 10,
|
||||
'z-index': 90000,
|
||||
overflow: 'hidden',
|
||||
padding: 10,
|
||||
})
|
||||
.text('log')
|
||||
.appendTo($('body'))
|
||||
} else {
|
||||
_log.appendTo($('body'))
|
||||
}
|
||||
return this
|
||||
},
|
||||
remove: function(){
|
||||
_log.detach()
|
||||
return this
|
||||
},
|
||||
log: function(text){
|
||||
_log.html(_log.html() + '<br>' + text + '')
|
||||
_log.scrollTop(_log.prop('scrollHeight'))
|
||||
return this
|
||||
},
|
||||
clear: function(){
|
||||
_log.html('')
|
||||
return this
|
||||
},
|
||||
get: function(){
|
||||
return _log
|
||||
},
|
||||
set: function(elem){
|
||||
_log = elem
|
||||
}
|
||||
}.setup()
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* vim:set ts=4 sw=4 : */
|
||||
|
||||
151
lib/keyboard.js
Executable file
151
lib/keyboard.js
Executable file
@ -0,0 +1,151 @@
|
||||
/**********************************************************************
|
||||
*
|
||||
*
|
||||
*
|
||||
**********************************************************************/
|
||||
|
||||
//var DEBUG = DEBUG != null ? DEBUG : true
|
||||
|
||||
|
||||
|
||||
/*********************************************************************/
|
||||
|
||||
// NOTE: don't understand why am I the one who has to write this...
|
||||
var SPECIAL_KEYS = {
|
||||
// Special Keys...
|
||||
9: 'Tab', 33: 'PgUp', 45: 'Ins',
|
||||
13: 'Enter', 34: 'PgDown', 46: 'Del',
|
||||
16: 'Shift', 35: 'End', 80: 'Backspace',
|
||||
17: 'Ctrl', 36: 'Home', 91: 'Win',
|
||||
18: 'Alt', 37: 'Right', 93: 'Menu',
|
||||
20: 'Caps Lock',38: 'Up',
|
||||
27: 'Esc', 39: 'Left',
|
||||
32: 'Space', 40: 'Down',
|
||||
|
||||
// Function Keys...
|
||||
112: 'F1', 116: 'F5', 120: 'F9',
|
||||
113: 'F2', 117: 'F6', 121: 'F10',
|
||||
114: 'F3', 118: 'F7', 122: 'F11',
|
||||
115: 'F4', 119: 'F8', 123: 'F12',
|
||||
}
|
||||
|
||||
// XXX some keys look really wrong...
|
||||
function toKeyName(code){
|
||||
// check for special keys...
|
||||
var k = SPECIAL_KEYS[code]
|
||||
if(k != null){
|
||||
return k
|
||||
}
|
||||
// chars...
|
||||
k = String.fromCharCode(code)
|
||||
if(k != ''){
|
||||
return k.toLowerCase()
|
||||
}
|
||||
return null
|
||||
}
|
||||
|
||||
|
||||
// if set to false the event handlers will always return false...
|
||||
var KEYBOARD_HANDLER_PROPAGATE = true
|
||||
|
||||
/* Basic key format:
|
||||
*
|
||||
* <key-code> : <callback>,
|
||||
*
|
||||
* <key-code> : {
|
||||
* 'default': <callback>,
|
||||
* // a modifier can be any single modifier, like shift or a
|
||||
* // combination of modifers like 'ctrl+shift', given in order
|
||||
* // of priority.
|
||||
* // supported modifiers are (in order of priority):
|
||||
* // - ctrl
|
||||
* // - alt
|
||||
* // - shift
|
||||
* <modifer>: [...]
|
||||
* },
|
||||
*
|
||||
* <key-code> : [
|
||||
* // this can be any type of handler except for an alias...
|
||||
* <handler>,
|
||||
* <doc>
|
||||
* ],
|
||||
*
|
||||
* // alias...
|
||||
* <key-code-a> : <key-code-b>,
|
||||
*
|
||||
* XXX might need to add meta information to generate sensible help...
|
||||
*/
|
||||
function makeKeyboardHandler(keybindings, unhandled){
|
||||
if(unhandled == null){
|
||||
//unhandled = function(){return false}
|
||||
unhandled = function(){return KEYBOARD_HANDLER_PROPAGATE}
|
||||
}
|
||||
return function(evt){
|
||||
var did_handling = false
|
||||
var res = null
|
||||
for(var mode in keybindings){
|
||||
if($(mode).length > 0){
|
||||
var bindings = keybindings[mode]
|
||||
|
||||
var key = evt.keyCode
|
||||
if(bindings.ignore == '*'
|
||||
|| bindings.ignore != null && bindings.ignore.indexOf(key) != -1){
|
||||
// return true
|
||||
res = res == null ? true : res
|
||||
did_handling = true
|
||||
continue
|
||||
}
|
||||
// XXX ugly...
|
||||
var modifers = evt.ctrlKey ? 'ctrl' : ''
|
||||
modifers += evt.altKey ? (modifers != '' ? '+alt' : 'alt') : ''
|
||||
modifers += evt.shiftKey ? (modifers != '' ? '+shift' : 'shift') : ''
|
||||
|
||||
var handler = bindings[key]
|
||||
|
||||
// alias...
|
||||
while (typeof(handler) == typeof(123)) {
|
||||
handler = bindings[handler]
|
||||
}
|
||||
// no handler...
|
||||
if(handler == null){
|
||||
continue
|
||||
}
|
||||
// Array, lisp style with docs...
|
||||
// XXX for some odd reason in chrome typeof([]) == typeof({})!!!
|
||||
if(typeof(handler) == typeof([]) && handler.constructor.name == 'Array'){
|
||||
// we do not care about docs here, so just get the handler...
|
||||
handler = handler[0]
|
||||
}
|
||||
// complex handler...
|
||||
if(typeof(handler) == typeof({})){
|
||||
var callback = handler[modifers]
|
||||
if(callback == null){
|
||||
callback = handler['default']
|
||||
}
|
||||
if(callback != null){
|
||||
res = callback()
|
||||
did_handling = true
|
||||
continue
|
||||
}
|
||||
} else {
|
||||
// simple callback...
|
||||
res = handler()
|
||||
did_handling = true
|
||||
continue
|
||||
}
|
||||
}
|
||||
}
|
||||
if(!did_handling){
|
||||
// key is unhandled by any modes...
|
||||
return unhandled(key)
|
||||
} else {
|
||||
// XXX should we handle multiple hits???
|
||||
return KEYBOARD_HANDLER_PROPAGATE&&res?true:false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* vim:set ts=4 sw=4 : */
|
||||
63
lib/log.js
Executable file
63
lib/log.js
Executable file
@ -0,0 +1,63 @@
|
||||
/**********************************************************************
|
||||
*
|
||||
*
|
||||
*
|
||||
**********************************************************************/
|
||||
|
||||
//var DEBUG = DEBUG != null ? DEBUG : true
|
||||
|
||||
|
||||
|
||||
/********************************************************** logger ***/
|
||||
|
||||
function Logger(){
|
||||
_log = null
|
||||
return {
|
||||
setup: function(){
|
||||
if(_log == null){
|
||||
_log = $('<div id="log"></div>')
|
||||
.css({
|
||||
position: 'fixed',
|
||||
background: 'silver',
|
||||
opacity: 0.5,
|
||||
width: 200,
|
||||
height: '80%',
|
||||
top: 10,
|
||||
left: 10,
|
||||
'z-index': 90000,
|
||||
overflow: 'hidden',
|
||||
padding: 10,
|
||||
})
|
||||
.text('log')
|
||||
.appendTo($('body'))
|
||||
} else {
|
||||
_log.appendTo($('body'))
|
||||
}
|
||||
return this
|
||||
},
|
||||
remove: function(){
|
||||
_log.detach()
|
||||
return this
|
||||
},
|
||||
log: function(text){
|
||||
_log.html(_log.html() + '<br>' + text + '')
|
||||
_log.scrollTop(_log.prop('scrollHeight'))
|
||||
return this
|
||||
},
|
||||
clear: function(){
|
||||
_log.html('')
|
||||
return this
|
||||
},
|
||||
get: function(){
|
||||
return _log
|
||||
},
|
||||
set: function(elem){
|
||||
_log = elem
|
||||
}
|
||||
}.setup()
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* vim:set ts=4 sw=4 : */
|
||||
512
lib/scroller.js
Executable file
512
lib/scroller.js
Executable file
@ -0,0 +1,512 @@
|
||||
/**********************************************************************
|
||||
*
|
||||
*
|
||||
*
|
||||
**********************************************************************/
|
||||
|
||||
//var DEBUG = DEBUG != null ? DEBUG : true
|
||||
|
||||
// click threshold in pixels, if the distance between start and end is
|
||||
// less than this, the whole event is considered a click and not a
|
||||
// drag/swipe...
|
||||
var CLICK_THRESHOLD = 10
|
||||
|
||||
// if the amount of time to wait beween start and end is greater than this
|
||||
// the event is considered a long click.
|
||||
// NOTE: this will not auto-fire the event, the user MUST release first.
|
||||
var LONG_CLICK_THRESHOLD = 400
|
||||
|
||||
// the maximum amount of time between clicks to count them together.
|
||||
// NOTE: if multi-clicks are disabled this has no effect.
|
||||
// NOTE: this is reset by the timeout explicitly set in the handler...
|
||||
// NOTE: this is the timeout between two consecutive clicks and not the total.
|
||||
// NOTE: if multiple clicks are enabled this will introduce a lag after
|
||||
// each click (while we wait for the next), so keep this as small
|
||||
// as possible.
|
||||
var MULTI_CLICK_TIMEOUT = 200
|
||||
|
||||
// the amount of time between finger releases.
|
||||
// NOTE: when this is passed all the fingers released before are ignored.
|
||||
var MULTITOUCH_RELEASE_THRESHOLD = 100
|
||||
|
||||
|
||||
|
||||
/*********************************************************************/
|
||||
|
||||
// XXX add a resonable cancel scheme...
|
||||
// ... something similar to touch threshold but bigger...
|
||||
// XXX handle multiple touches...
|
||||
// - timeout on lift to count fingers...
|
||||
// XXX setup basic styles for the contained element...
|
||||
// XXX revise...
|
||||
// XXX test on other devices...
|
||||
// XXX BUG: on landing a second finger while scrolling the things goes
|
||||
// haywhire...
|
||||
// ...check if this is gone...
|
||||
// XXX add something like a scrollTo that would understand elements as
|
||||
// well as explicit positions.
|
||||
// XXX split this into a seporate lib...
|
||||
function makeScrollHandler(root, config){
|
||||
root = $(root)
|
||||
|
||||
// local data...
|
||||
var ignoring = false
|
||||
// XXX this and scroller.state are redundent...
|
||||
var scrolling = false
|
||||
var touch = false
|
||||
var touches = 0
|
||||
var max_dx = 0
|
||||
var max_dy = 0
|
||||
|
||||
var cancelThreshold, scrolled
|
||||
// initial state...
|
||||
, start_x, start_y, start_t
|
||||
// previous state...
|
||||
, prev_x, prev_y, prev_t
|
||||
// current state...
|
||||
, x, y, t
|
||||
// state delta...
|
||||
, dx, dy, dt
|
||||
|
||||
, shift
|
||||
, scale
|
||||
//, bounds
|
||||
|
||||
function startMoveHandler(evt){
|
||||
var options = scroller.options
|
||||
// ignore...
|
||||
if(options.ignoreElements
|
||||
&& $(evt.target).closest(options.ignoreElements).length > 0
|
||||
|| scroller.state == 'paused'){
|
||||
ignoring = true
|
||||
return
|
||||
} else {
|
||||
ignoring = false
|
||||
}
|
||||
if(event.touches != null){
|
||||
touch = true
|
||||
}
|
||||
cancelThreshold = options.scrollCancelThreshold
|
||||
touches = touch ? event.touches.length : 1
|
||||
// if we are already touching then just skip on this...
|
||||
// XXX test this...
|
||||
if(touches > 1){
|
||||
return false
|
||||
}
|
||||
prev_t = event.timeStamp || Date.now();
|
||||
start_t = prev_t
|
||||
/*
|
||||
if(options.autoCancelEvents){
|
||||
bounds = {
|
||||
left: options.eventBounds,
|
||||
right: root.width() - options.eventBounds,
|
||||
top: options.eventBounds,
|
||||
bottom: root.height() - options.eventBounds
|
||||
}
|
||||
}
|
||||
*/
|
||||
//togglePageDragging('on')
|
||||
scrolled = $(root.children()[0])
|
||||
setTransitionDuration(scrolled, 0)
|
||||
// XXX these two are redundant...
|
||||
scrolling = true
|
||||
scroller.state = 'scrolling'
|
||||
options.enabelStartEvent && root.trigger('userScrollStart')
|
||||
// XXX do we need to pass something to this?
|
||||
options.preCallback && options.preCallback()
|
||||
|
||||
shift = getElementShift(scrolled)
|
||||
scale = getElementScale(scrolled)
|
||||
// get the user coords...
|
||||
prev_x = touch ? event.touches[0].pageX : evt.clientX
|
||||
start_x = prev_x
|
||||
prev_y = touch ? event.touches[0].pageY : evt.clientY
|
||||
start_y = prev_y
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
// XXX try and make this adaptive to stay ahead of the lags...
|
||||
// NOTE: this does not support limiting the scroll, might be done in
|
||||
// the future though.
|
||||
// The way to go about this is to track scrolled size in the
|
||||
// callback...
|
||||
function moveHandler(evt){
|
||||
if(ignoring){
|
||||
return
|
||||
}
|
||||
var options = scroller.options
|
||||
evt.preventDefault()
|
||||
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 : 1
|
||||
|
||||
/*
|
||||
// XXX needs testing...
|
||||
// XXX do we need to account for scrollDisabled here???
|
||||
// check scroll bounds...
|
||||
if(bounds != null){
|
||||
if(options.hScroll && (x <= bounds.left || x >= bounds.right)
|
||||
|| options.vScroll && (y <= bounds.top || y >= bounds.bottom)){
|
||||
// XXX cancel the touch event and trigger the end handler...
|
||||
return endMoveHandler(evt)
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
// do the actual scroll...
|
||||
if(!options.scrollDisabled && scrolling){
|
||||
if(options.hScroll){
|
||||
shift.left += x - prev_x
|
||||
}
|
||||
if(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
|
||||
max_dx += Math.abs(dx)
|
||||
max_dy += Math.abs(dy)
|
||||
dt = t - prev_t
|
||||
prev_x = x
|
||||
prev_y = y
|
||||
prev_t = t
|
||||
|
||||
options.enableUserScrollEvent && root.trigger('userScroll')
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
function endMoveHandler(evt){
|
||||
t = event.timeStamp || Date.now();
|
||||
touches = touch ? event.touches.length : 0
|
||||
if(ignoring){
|
||||
if(touches == 0){
|
||||
ignoring = false
|
||||
}
|
||||
return
|
||||
}
|
||||
var options = scroller.options
|
||||
|
||||
// XXX get real transition duration...
|
||||
scroller.resetTransitions()
|
||||
|
||||
x = touch ? event.changedTouches[0].pageX : evt.clientX
|
||||
y = touch ? event.changedTouches[0].pageY : evt.clientY
|
||||
// check if we are canceling...
|
||||
if(cancelThreshold
|
||||
&& Math.abs(start_x-x) < cancelThreshold
|
||||
&& Math.abs(start_y-y) < cancelThreshold
|
||||
&& (max_dx > cancelThreshold
|
||||
|| max_dy > cancelThreshold)){
|
||||
scroller.state = 'canceling'
|
||||
}
|
||||
|
||||
var data = {
|
||||
orig_event: evt,
|
||||
scroller: scroller,
|
||||
speed: {
|
||||
x: dx/dt,
|
||||
y: dy/dt
|
||||
},
|
||||
distance: {
|
||||
x: start_x-x,
|
||||
y: start_y-y
|
||||
},
|
||||
duration: t-start_t,
|
||||
// current touches...
|
||||
touches: touches,
|
||||
clicks: null,
|
||||
}
|
||||
// XXX stop only if no fingers are touching or let the callback decide...
|
||||
//togglePageDragging('off')
|
||||
// XXX update this with the new data model!!! (see below)
|
||||
options.enableEndEvent && root.trigger('userScrollEnd', data)
|
||||
if(options.postCallback
|
||||
// XXX revise this....
|
||||
&& options.postCallback(data) === false
|
||||
|| touches == 0){
|
||||
// cleanup and stop...
|
||||
touch = false
|
||||
scrolling = false
|
||||
scroller.state = 'waiting'
|
||||
scrolled = null
|
||||
//bounds = null
|
||||
max_dx = 0
|
||||
max_dy = 0
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
|
||||
var scroller = {
|
||||
options: {
|
||||
// if one of these is false, it will restrict scrolling in
|
||||
// that direction. hScroll for horizontal and vScroll for
|
||||
// vertical.
|
||||
// NOTE: to disable scroll completely use scrollDisabled, see
|
||||
// below for details.
|
||||
hScroll: true,
|
||||
vScroll: true,
|
||||
|
||||
// this will disable scroll.
|
||||
// NOTE: this is the same as setting both vScroll and hScroll
|
||||
// to false, but can be set and reset without affecting
|
||||
// the actual settings individually...
|
||||
// NOTE: this takes priority over hScroll/vScroll.
|
||||
scrollDisabled: false,
|
||||
|
||||
// sets the default transition settings while not scrolling...
|
||||
transitionDuration: 200,
|
||||
transitionEasing: 'ease',
|
||||
|
||||
// items to be ignored by the scroller...
|
||||
// this is a jQuery compatible selector.
|
||||
ignoreElements: '.noScroll',
|
||||
// this is the side of the rectangle in px, if the user moves
|
||||
// out of it, and then returns back, the action will get cancelled.
|
||||
// i.e. the callback will get called with the "cancelling" state.
|
||||
scrollCancelThreshold: 100,
|
||||
|
||||
// these control weather in-scroll events will get triggered.
|
||||
// NOTE: these may impact performance, especially the scroll
|
||||
// event, thus they need to enabled explicitly.
|
||||
enabelStartEvent: false,
|
||||
enableUserScrollEvent: false,
|
||||
enableEndEvent: false,
|
||||
|
||||
/*
|
||||
// XXX padding within the target element moving out of which
|
||||
// will cancell the action...
|
||||
// XXX needs testing...
|
||||
autoCancelEvents: false,
|
||||
eventBounds: 5,
|
||||
*/
|
||||
|
||||
// callback to be called when the user first touches the screen...
|
||||
preCallback: null,
|
||||
// callback to be called when the user lifts a finger/mouse.
|
||||
// NOTE: this may happen before the scroll is done, for instance
|
||||
// when one of several fingers participating in the action
|
||||
// gets lifted.
|
||||
// NOTE: if this returns false explicitly, this will stop scrolling.
|
||||
postCallback: postScrollCallback,
|
||||
|
||||
// These are used by the default callback...
|
||||
// if true then doubleClick and multiClick events will get
|
||||
// triggered.
|
||||
// NOTE: this will introduce a lag needed to wait for next
|
||||
// clicks in a group.
|
||||
// NOTE: when this is false, shortClick is triggered for every
|
||||
// single click separately.
|
||||
enableMultiClicks: false,
|
||||
// NOTE: if these are null, respective values from the env will
|
||||
// be used.
|
||||
clickThreshold: null,
|
||||
longClickThreshold: null,
|
||||
multiClickTimeout: null,
|
||||
multitouchTimeout: null,
|
||||
},
|
||||
// NOTE: this is updated live but not used by the system in any way...
|
||||
state: 'stopped',
|
||||
root: root,
|
||||
|
||||
start: function(){
|
||||
if(this.state == 'paused'){
|
||||
this.state = 'waiting'
|
||||
} else {
|
||||
this.state = 'waiting'
|
||||
// XXX STUB: this makes starting the scroll a bit sluggish,
|
||||
// find a faster way...
|
||||
//togglePageDragging('on')
|
||||
|
||||
// NOTE: if we bind both touch and mouse events, on touch devices they
|
||||
// might start interfering with each other...
|
||||
if('ontouchmove' in window){
|
||||
root
|
||||
.on('touchstart', startMoveHandler)
|
||||
.on('touchmove', moveHandler)
|
||||
.on('touchend', endMoveHandler)
|
||||
.on('touchcancel', endMoveHandler)
|
||||
} else {
|
||||
root
|
||||
.on('mousedown', startMoveHandler)
|
||||
.on('mousemove', moveHandler)
|
||||
.on('mouseup', endMoveHandler)
|
||||
}
|
||||
}
|
||||
return this
|
||||
},
|
||||
// XXX test...
|
||||
pause: function(){
|
||||
this.state = 'paused'
|
||||
return this
|
||||
},
|
||||
stop: function(){
|
||||
if('ontouchmove' in window){
|
||||
root
|
||||
.off('touchstart', startMoveHandler)
|
||||
.off('touchmove', moveHandler)
|
||||
.off('touchend', endMoveHandler)
|
||||
} else {
|
||||
root
|
||||
.off('mousedown', startMoveHandler)
|
||||
.off('mousemove', moveHandler)
|
||||
.off('mouseup', endMoveHandler)
|
||||
}
|
||||
this.state = 'stopped'
|
||||
return this
|
||||
},
|
||||
resetTransitions: function(){
|
||||
var scrolled = this.root.children().first()
|
||||
setTransitionDuration(scrolled, this.options.transitionDuration)
|
||||
setTransitionEasing(scrolled, this.options.transitionEasing)
|
||||
}
|
||||
}
|
||||
|
||||
// merge the config with the defaults...
|
||||
if(config != null){
|
||||
$.extend(scroller.options, config)
|
||||
}
|
||||
|
||||
return scroller
|
||||
}
|
||||
|
||||
// default callback...
|
||||
// This will provide support for the folowing events on the scroll root
|
||||
// element:
|
||||
// - scrollCancelled
|
||||
//
|
||||
// - shortClick
|
||||
// - doubleClick
|
||||
// - multiClick
|
||||
// this will store the number of clicks in data.clicks
|
||||
// - longClick
|
||||
//
|
||||
// - swipeLeft
|
||||
// - swipeRight
|
||||
// - swipeUp
|
||||
// - swipeDown
|
||||
//
|
||||
// - screenReleased
|
||||
//
|
||||
// NOTE: data.touches passed to the event is the number of touches
|
||||
// released within the multitouchTimeout.
|
||||
// this differs from what postScrollCallback actually gets in the
|
||||
// same field when it recieves the object.
|
||||
// XXX add generic snap
|
||||
// XXX add generic innertial scroll
|
||||
// XXX test multiple touches...
|
||||
function postScrollCallback(data){
|
||||
var scroller = data.scroller
|
||||
var options = scroller.options
|
||||
var root = scroller.root
|
||||
var clickThreshold = options.clickThreshold || CLICK_THRESHOLD
|
||||
var longClickThreshold = options.longClickThreshold || LONG_CLICK_THRESHOLD
|
||||
var multitouchTimeout = options.multitouchTimeout || MULTITOUCH_RELEASE_THRESHOLD
|
||||
var enableMultiClicks = options.enableMultiClicks
|
||||
var multiClickTimeout = options.multiClickTimeout || MULTI_CLICK_TIMEOUT
|
||||
|
||||
var now = Date.now();
|
||||
|
||||
// cancel event...
|
||||
if(scroller.state == 'canceling'){
|
||||
return root.trigger('scrollCancelled', data)
|
||||
}
|
||||
|
||||
// handle multiple touches...
|
||||
if(data.touches > 0){
|
||||
var then = scroller._last_touch_release
|
||||
if(then == null || now - then < multitouchTimeout){
|
||||
if(scroller._touches == null){
|
||||
scroller._touches = 1
|
||||
} else {
|
||||
scroller._touches += 1
|
||||
}
|
||||
} else {
|
||||
scroller._touches = null
|
||||
}
|
||||
// wait for the next touch release...
|
||||
scroller._last_touch_release = now
|
||||
return
|
||||
|
||||
// calculate how many touches did participate...
|
||||
} else {
|
||||
data.touches = scroller._touches ? scroller._touches + 1 : 1
|
||||
scroller._last_touch_release = null
|
||||
scroller._touches = null
|
||||
}
|
||||
|
||||
// clicks, double-clicks, multi-clicks and long-clicks...
|
||||
if(Math.max(
|
||||
Math.abs(data.distance.x),
|
||||
Math.abs(data.distance.y)) < clickThreshold){
|
||||
if(data.duration > longClickThreshold){
|
||||
return root.trigger('longClick', data)
|
||||
}
|
||||
if(!enableMultiClicks){
|
||||
return root.trigger('shortClick', data)
|
||||
|
||||
} else {
|
||||
// count the clicks so far...
|
||||
if(scroller._clicks == null){
|
||||
scroller._clicks = 1
|
||||
} else {
|
||||
scroller._clicks += 1
|
||||
}
|
||||
|
||||
// kill any previous waits...
|
||||
if(scroller._click_timeout_id != null){
|
||||
clearTimeout(scroller._click_timeout_id)
|
||||
}
|
||||
|
||||
// wait for the next click...
|
||||
scroller._click_timeout_id = setTimeout(function(){
|
||||
var clicks = scroller._clicks
|
||||
data.clicks = clicks
|
||||
if(clicks == 1){
|
||||
root.trigger('shortClick', data)
|
||||
} else if(clicks == 2){
|
||||
root.trigger('doubleClick', data)
|
||||
} else {
|
||||
root.trigger('multiClick', data)
|
||||
}
|
||||
scroller._clicks = null
|
||||
scroller._click_timeout_id = null
|
||||
}, multiClickTimeout)
|
||||
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// swipes...
|
||||
// XXX might be a good idea to chain these with swipe and screenReleased
|
||||
if(Math.abs(data.distance.x) > Math.abs(data.distance.y)){
|
||||
if(data.distance.x <= -clickThreshold && root.data('events').swipeLeft){
|
||||
return root.trigger('swipeLeft', data)
|
||||
} else if(data.distance.x >= clickThreshold && root.data('events').swipeRight){
|
||||
return root.trigger('swipeRight', data)
|
||||
}
|
||||
} else {
|
||||
if(data.distance.y <= -clickThreshold && root.data('events').swipeUp){
|
||||
return root.trigger('swipeUp', data)
|
||||
} else if(data.distance.y >= clickThreshold && root.data('events').swipeDown){
|
||||
return root.trigger('swipeDown', data)
|
||||
}
|
||||
}
|
||||
|
||||
// this is triggered of no swipes were handled...
|
||||
return root.trigger('screenReleased', data)
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* vim:set ts=4 sw=4 : */
|
||||
Loading…
x
Reference in New Issue
Block a user