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author | Alib <aliboba@free.fr> | 2010-02-21 23:53:20 +0100 |
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committer | Alib <aliboba@free.fr> | 2010-02-21 23:53:20 +0100 |
commit | 029c667f638cb9875636eedef1ddd3e45d62e9d7 (patch) | |
tree | 4ec9fd7329271a38055a01b4fd2a6c089059d69d /javascript/spinningwheel.js | |
parent | 3e0c075573b88b02c1d3c1a69251f41b31385ef8 (diff) | |
download | istreamdev-029c667f638cb9875636eedef1ddd3e45d62e9d7.tar.gz istreamdev-029c667f638cb9875636eedef1ddd3e45d62e9d7.tar.bz2 |
updated new timer template. Added spinningwheel from
http://cubiq.org/spinning-wheel-on-webkit-for-iphone-ipod-touch/11
Diffstat (limited to 'javascript/spinningwheel.js')
-rwxr-xr-x | javascript/spinningwheel.js | 492 |
1 files changed, 492 insertions, 0 deletions
diff --git a/javascript/spinningwheel.js b/javascript/spinningwheel.js new file mode 100755 index 0000000..1147d3a --- /dev/null +++ b/javascript/spinningwheel.js @@ -0,0 +1,492 @@ +/** + * + * Find more about the Spinning Wheel function at + * http://cubiq.org/spinning-wheel-on-webkit-for-iphone-ipod-touch/11 + * + * Copyright (c) 2009 Matteo Spinelli, http://cubiq.org/ + * Released under MIT license + * http://cubiq.org/dropbox/mit-license.txt + * + * Version 1.4 - Last updated: 2009.07.09 + * + */ + +var SpinningWheel = { + cellHeight: 44, + friction: 0.003, + slotData: [], + + + /** + * + * Event handler + * + */ + + handleEvent: function (e) { + if (e.type == 'touchstart') { + this.lockScreen(e); + if (e.currentTarget.id == 'sw-cancel' || e.currentTarget.id == 'sw-done') { + this.tapDown(e); + } else if (e.currentTarget.id == 'sw-frame') { + this.scrollStart(e); + } + } else if (e.type == 'touchmove') { + this.lockScreen(e); + + if (e.currentTarget.id == 'sw-cancel' || e.currentTarget.id == 'sw-done') { + this.tapCancel(e); + } else if (e.currentTarget.id == 'sw-frame') { + this.scrollMove(e); + } + } else if (e.type == 'touchend') { + if (e.currentTarget.id == 'sw-cancel' || e.currentTarget.id == 'sw-done') { + this.tapUp(e); + } else if (e.currentTarget.id == 'sw-frame') { + this.scrollEnd(e); + } + } else if (e.type == 'webkitTransitionEnd') { + if (e.target.id == 'sw-wrapper') { + this.destroy(); + } else { + this.backWithinBoundaries(e); + } + } else if (e.type == 'orientationchange') { + this.onOrientationChange(e); + } else if (e.type == 'scroll') { + this.onScroll(e); + } + }, + + + /** + * + * Global events + * + */ + + onOrientationChange: function (e) { + window.scrollTo(0, 0); + this.swWrapper.style.top = window.innerHeight + window.pageYOffset + 'px'; + this.calculateSlotsWidth(); + }, + + onScroll: function (e) { + this.swWrapper.style.top = window.innerHeight + window.pageYOffset + 'px'; + }, + + lockScreen: function (e) { + e.preventDefault(); + e.stopPropagation(); + }, + + + /** + * + * Initialization + * + */ + + reset: function () { + this.slotEl = []; + + this.activeSlot = null; + + this.swWrapper = undefined; + this.swSlotWrapper = undefined; + this.swSlots = undefined; + this.swFrame = undefined; + }, + + calculateSlotsWidth: function () { + var div = this.swSlots.getElementsByTagName('div'); + for (var i = 0; i < div.length; i += 1) { + this.slotEl[i].slotWidth = div[i].offsetWidth; + } + }, + + create: function () { + var i, l, out, ul, div; + + this.reset(); // Initialize object variables + + // Create the Spinning Wheel main wrapper + div = document.createElement('div'); + div.id = 'sw-wrapper'; + div.style.top = window.innerHeight + window.pageYOffset + 'px'; // Place the SW down the actual viewing screen + div.style.webkitTransitionProperty = '-webkit-transform'; + div.innerHTML = '<div id="sw-header"><div id="sw-cancel">Cancel</' + 'div><div id="sw-done">Done</' + 'div></' + 'div><div id="sw-slots-wrapper"><div id="sw-slots"></' + 'div></' + 'div><div id="sw-frame"></' + 'div>'; + + document.body.appendChild(div); + + this.swWrapper = div; // The SW wrapper + this.swSlotWrapper = document.getElementById('sw-slots-wrapper'); // Slots visible area + this.swSlots = document.getElementById('sw-slots'); // Pseudo table element (inner wrapper) + this.swFrame = document.getElementById('sw-frame'); // The scrolling controller + + // Create HTML slot elements + for (l = 0; l < this.slotData.length; l += 1) { + // Create the slot + ul = document.createElement('ul'); + out = ''; + for (i in this.slotData[l].values) { + out += '<li>' + this.slotData[l].values[i] + '<' + '/li>'; + } + ul.innerHTML = out; + + div = document.createElement('div'); // Create slot container + div.className = this.slotData[l].style; // Add styles to the container + div.appendChild(ul); + + // Append the slot to the wrapper + this.swSlots.appendChild(div); + + ul.slotPosition = l; // Save the slot position inside the wrapper + ul.slotYPosition = 0; + ul.slotWidth = 0; + ul.slotMaxScroll = this.swSlotWrapper.clientHeight - ul.clientHeight - 86; + ul.style.webkitTransitionTimingFunction = 'cubic-bezier(0, 0, 0.2, 1)'; // Add default transition + + this.slotEl.push(ul); // Save the slot for later use + + // Place the slot to its default position (if other than 0) + if (this.slotData[l].defaultValue) { + this.scrollToValue(l, this.slotData[l].defaultValue); + } + } + + this.calculateSlotsWidth(); + + // Global events + document.addEventListener('touchstart', this, false); // Prevent page scrolling + document.addEventListener('touchmove', this, false); // Prevent page scrolling + window.addEventListener('orientationchange', this, true); // Optimize SW on orientation change + window.addEventListener('scroll', this, true); // Reposition SW on page scroll + + // Cancel/Done buttons events + document.getElementById('sw-cancel').addEventListener('touchstart', this, false); + document.getElementById('sw-done').addEventListener('touchstart', this, false); + + // Add scrolling to the slots + this.swFrame.addEventListener('touchstart', this, false); + }, + + open: function () { + this.create(); + + this.swWrapper.style.webkitTransitionTimingFunction = 'ease-out'; + this.swWrapper.style.webkitTransitionDuration = '400ms'; + this.swWrapper.style.webkitTransform = 'translate3d(0, -260px, 0)'; + }, + + + /** + * + * Unload + * + */ + + destroy: function () { + this.swWrapper.removeEventListener('webkitTransitionEnd', this, false); + + this.swFrame.removeEventListener('touchstart', this, false); + + document.getElementById('sw-cancel').removeEventListener('touchstart', this, false); + document.getElementById('sw-done').removeEventListener('touchstart', this, false); + + document.removeEventListener('touchstart', this, false); + document.removeEventListener('touchmove', this, false); + window.removeEventListener('orientationchange', this, true); + window.removeEventListener('scroll', this, true); + + this.slotData = []; + this.cancelAction = function () { + return false; + }; + + this.cancelDone = function () { + return true; + }; + + this.reset(); + + document.body.removeChild(document.getElementById('sw-wrapper')); + }, + + close: function () { + this.swWrapper.style.webkitTransitionTimingFunction = 'ease-in'; + this.swWrapper.style.webkitTransitionDuration = '400ms'; + this.swWrapper.style.webkitTransform = 'translate3d(0, 0, 0)'; + + this.swWrapper.addEventListener('webkitTransitionEnd', this, false); + }, + + + /** + * + * Generic methods + * + */ + + addSlot: function (values, style, defaultValue) { + if (!style) { + style = ''; + } + + style = style.split(' '); + + for (var i = 0; i < style.length; i += 1) { + style[i] = 'sw-' + style[i]; + } + + style = style.join(' '); + + var obj = { 'values': values, 'style': style, 'defaultValue': defaultValue }; + this.slotData.push(obj); + }, + + getSelectedValues: function () { + var index, count, + i, l, + keys = [], values = []; + + for (i in this.slotEl) { + // Remove any residual animation + this.slotEl[i].removeEventListener('webkitTransitionEnd', this, false); + this.slotEl[i].style.webkitTransitionDuration = '0'; + + if (this.slotEl[i].slotYPosition > 0) { + this.setPosition(i, 0); + } else if (this.slotEl[i].slotYPosition < this.slotEl[i].slotMaxScroll) { + this.setPosition(i, this.slotEl[i].slotMaxScroll); + } + + index = -Math.round(this.slotEl[i].slotYPosition / this.cellHeight); + + count = 0; + for (l in this.slotData[i].values) { + if (count == index) { + keys.push(l); + values.push(this.slotData[i].values[l]); + break; + } + + count += 1; + } + } + + return { 'keys': keys, 'values': values }; + }, + + + /** + * + * Rolling slots + * + */ + + setPosition: function (slot, pos) { + this.slotEl[slot].slotYPosition = pos; + this.slotEl[slot].style.webkitTransform = 'translate3d(0, ' + pos + 'px, 0)'; + }, + + scrollStart: function (e) { + // Find the clicked slot + var xPos = e.targetTouches[0].clientX - this.swSlots.offsetLeft; // Clicked position minus left offset (should be 11px) + + // Find tapped slot + var slot = 0; + for (var i = 0; i < this.slotEl.length; i += 1) { + slot += this.slotEl[i].slotWidth; + + if (xPos < slot) { + this.activeSlot = i; + break; + } + } + + // If slot is readonly do nothing + if (this.slotData[this.activeSlot].style.match('readonly')) { + this.swFrame.removeEventListener('touchmove', this, false); + this.swFrame.removeEventListener('touchend', this, false); + return false; + } + + this.slotEl[this.activeSlot].removeEventListener('webkitTransitionEnd', this, false); // Remove transition event (if any) + this.slotEl[this.activeSlot].style.webkitTransitionDuration = '0'; // Remove any residual transition + + // Stop and hold slot position + var theTransform = window.getComputedStyle(this.slotEl[this.activeSlot]).webkitTransform; + theTransform = new WebKitCSSMatrix(theTransform).m42; + if (theTransform != this.slotEl[this.activeSlot].slotYPosition) { + this.setPosition(this.activeSlot, theTransform); + } + + this.startY = e.targetTouches[0].clientY; + this.scrollStartY = this.slotEl[this.activeSlot].slotYPosition; + this.scrollStartTime = e.timeStamp; + + this.swFrame.addEventListener('touchmove', this, false); + this.swFrame.addEventListener('touchend', this, false); + + return true; + }, + + scrollMove: function (e) { + var topDelta = e.targetTouches[0].clientY - this.startY; + + if (this.slotEl[this.activeSlot].slotYPosition > 0 || this.slotEl[this.activeSlot].slotYPosition < this.slotEl[this.activeSlot].slotMaxScroll) { + topDelta /= 2; + } + + this.setPosition(this.activeSlot, this.slotEl[this.activeSlot].slotYPosition + topDelta); + this.startY = e.targetTouches[0].clientY; + + // Prevent slingshot effect + if (e.timeStamp - this.scrollStartTime > 80) { + this.scrollStartY = this.slotEl[this.activeSlot].slotYPosition; + this.scrollStartTime = e.timeStamp; + } + }, + + scrollEnd: function (e) { + this.swFrame.removeEventListener('touchmove', this, false); + this.swFrame.removeEventListener('touchend', this, false); + + // If we are outside of the boundaries, let's go back to the sheepfold + if (this.slotEl[this.activeSlot].slotYPosition > 0 || this.slotEl[this.activeSlot].slotYPosition < this.slotEl[this.activeSlot].slotMaxScroll) { + this.scrollTo(this.activeSlot, this.slotEl[this.activeSlot].slotYPosition > 0 ? 0 : this.slotEl[this.activeSlot].slotMaxScroll); + return false; + } + + // Lame formula to calculate a fake deceleration + var scrollDistance = this.slotEl[this.activeSlot].slotYPosition - this.scrollStartY; + + // The drag session was too short + if (scrollDistance < this.cellHeight / 1.5 && scrollDistance > -this.cellHeight / 1.5) { + if (this.slotEl[this.activeSlot].slotYPosition % this.cellHeight) { + this.scrollTo(this.activeSlot, Math.round(this.slotEl[this.activeSlot].slotYPosition / this.cellHeight) * this.cellHeight, '100ms'); + } + + return false; + } + + var scrollDuration = e.timeStamp - this.scrollStartTime; + + var newDuration = (2 * scrollDistance / scrollDuration) / this.friction; + var newScrollDistance = (this.friction / 2) * (newDuration * newDuration); + + if (newDuration < 0) { + newDuration = -newDuration; + newScrollDistance = -newScrollDistance; + } + + var newPosition = this.slotEl[this.activeSlot].slotYPosition + newScrollDistance; + + if (newPosition > 0) { + // Prevent the slot to be dragged outside the visible area (top margin) + newPosition /= 2; + newDuration /= 3; + + if (newPosition > this.swSlotWrapper.clientHeight / 4) { + newPosition = this.swSlotWrapper.clientHeight / 4; + } + } else if (newPosition < this.slotEl[this.activeSlot].slotMaxScroll) { + // Prevent the slot to be dragged outside the visible area (bottom margin) + newPosition = (newPosition - this.slotEl[this.activeSlot].slotMaxScroll) / 2 + this.slotEl[this.activeSlot].slotMaxScroll; + newDuration /= 3; + + if (newPosition < this.slotEl[this.activeSlot].slotMaxScroll - this.swSlotWrapper.clientHeight / 4) { + newPosition = this.slotEl[this.activeSlot].slotMaxScroll - this.swSlotWrapper.clientHeight / 4; + } + } else { + newPosition = Math.round(newPosition / this.cellHeight) * this.cellHeight; + } + + this.scrollTo(this.activeSlot, Math.round(newPosition), Math.round(newDuration) + 'ms'); + + return true; + }, + + scrollTo: function (slotNum, dest, runtime) { + this.slotEl[slotNum].style.webkitTransitionDuration = runtime ? runtime : '100ms'; + this.setPosition(slotNum, dest ? dest : 0); + + // If we are outside of the boundaries go back to the sheepfold + if (this.slotEl[slotNum].slotYPosition > 0 || this.slotEl[slotNum].slotYPosition < this.slotEl[slotNum].slotMaxScroll) { + this.slotEl[slotNum].addEventListener('webkitTransitionEnd', this, false); + } + }, + + scrollToValue: function (slot, value) { + var yPos, count, i; + + this.slotEl[slot].removeEventListener('webkitTransitionEnd', this, false); + this.slotEl[slot].style.webkitTransitionDuration = '0'; + + count = 0; + for (i in this.slotData[slot].values) { + if (i == value) { + yPos = count * this.cellHeight; + this.setPosition(slot, yPos); + break; + } + + count -= 1; + } + }, + + backWithinBoundaries: function (e) { + e.target.removeEventListener('webkitTransitionEnd', this, false); + + this.scrollTo(e.target.slotPosition, e.target.slotYPosition > 0 ? 0 : e.target.slotMaxScroll, '150ms'); + return false; + }, + + + /** + * + * Buttons + * + */ + + tapDown: function (e) { + e.currentTarget.addEventListener('touchmove', this, false); + e.currentTarget.addEventListener('touchend', this, false); + e.currentTarget.className = 'sw-pressed'; + }, + + tapCancel: function (e) { + e.currentTarget.removeEventListener('touchmove', this, false); + e.currentTarget.removeEventListener('touchend', this, false); + e.currentTarget.className = ''; + }, + + tapUp: function (e) { + this.tapCancel(e); + + if (e.currentTarget.id == 'sw-cancel') { + this.cancelAction(); + } else { + this.doneAction(); + } + + this.close(); + }, + + setCancelAction: function (action) { + this.cancelAction = action; + }, + + setDoneAction: function (action) { + this.doneAction = action; + }, + + cancelAction: function () { + return false; + }, + + cancelDone: function () { + return true; + } +};
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