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Diffstat (limited to 'src/components/HMI/lib/iscroll-lite.js')
| -rw-r--r-- | src/components/HMI/lib/iscroll-lite.js | 594 |
1 files changed, 594 insertions, 0 deletions
diff --git a/src/components/HMI/lib/iscroll-lite.js b/src/components/HMI/lib/iscroll-lite.js new file mode 100644 index 0000000000..3a6cab7d2c --- /dev/null +++ b/src/components/HMI/lib/iscroll-lite.js @@ -0,0 +1,594 @@ +/*! + * iScroll Lite base on iScroll v4.1.6 ~ Copyright (c) 2011 Matteo Spinelli, http://cubiq.org + * Released under MIT license, http://cubiq.org/license + */ + +(function(){ +var m = Math, + mround = function (r) { return r >> 0; }, + vendor = (/webkit/i).test(navigator.appVersion) ? 'webkit' : + (/firefox/i).test(navigator.userAgent) ? 'Moz' : + 'opera' in window ? 'O' : '', + + // Browser capabilities + isAndroid = (/android/gi).test(navigator.appVersion), + isIDevice = (/iphone|ipad/gi).test(navigator.appVersion), + isPlaybook = (/playbook/gi).test(navigator.appVersion), + isTouchPad = (/hp-tablet/gi).test(navigator.appVersion), + + has3d = 'WebKitCSSMatrix' in window && 'm11' in new WebKitCSSMatrix(), + hasTouch = 'ontouchstart' in window && !isTouchPad, + hasTransform = vendor + 'Transform' in document.documentElement.style, + hasTransitionEnd = isIDevice || isPlaybook, + + nextFrame = (function() { + return window.requestAnimationFrame + || window.webkitRequestAnimationFrame + || window.mozRequestAnimationFrame + || window.oRequestAnimationFrame + || window.msRequestAnimationFrame + || function(callback) { return setTimeout(callback, 17); } + })(), + cancelFrame = (function () { + return window.cancelRequestAnimationFrame + || window.webkitCancelAnimationFrame + || window.webkitCancelRequestAnimationFrame + || window.mozCancelRequestAnimationFrame + || window.oCancelRequestAnimationFrame + || window.msCancelRequestAnimationFrame + || clearTimeout + })(), + + // Events + RESIZE_EV = 'onorientationchange' in window ? 'orientationchange' : 'resize', + START_EV = hasTouch ? 'touchstart' : 'mousedown', + MOVE_EV = hasTouch ? 'touchmove' : 'mousemove', + END_EV = hasTouch ? 'touchend' : 'mouseup', + CANCEL_EV = hasTouch ? 'touchcancel' : 'mouseup', + + // Helpers + trnOpen = 'translate' + (has3d ? '3d(' : '('), + trnClose = has3d ? ',0)' : ')', + + // Constructor + iScroll = function (el, options) { + var that = this, + doc = document, + i; + + that.wrapper = typeof el == 'object' ? el : doc.getElementById(el); + that.wrapper.style.overflow = 'hidden'; + that.scroller = that.wrapper.children[0]; + + // Default options + that.options = { + hScroll: true, + vScroll: true, + x: 0, + y: 0, + bounce: true, + bounceLock: false, + momentum: true, + lockDirection: true, + useTransform: true, + useTransition: false, + + // Events + onRefresh: null, + onBeforeScrollStart: function (e) { e.preventDefault(); }, + onScrollStart: null, + onBeforeScrollMove: null, + onScrollMove: null, + onBeforeScrollEnd: null, + onScrollEnd: null, + onTouchEnd: null, + onDestroy: null + }; + + // User defined options + for (i in options) that.options[i] = options[i]; + + // Set starting position + that.x = that.options.x; + that.y = that.options.y; + + // Normalize options + that.options.useTransform = hasTransform ? that.options.useTransform : false; + that.options.hScrollbar = that.options.hScroll && that.options.hScrollbar; + that.options.vScrollbar = that.options.vScroll && that.options.vScrollbar; + that.options.useTransition = hasTransitionEnd && that.options.useTransition; + + // Set some default styles + that.scroller.style[vendor + 'TransitionProperty'] = that.options.useTransform ? '-' + vendor.toLowerCase() + '-transform' : 'top left'; + that.scroller.style[vendor + 'TransitionDuration'] = '0'; + that.scroller.style[vendor + 'TransformOrigin'] = '0 0'; + if (that.options.useTransition) that.scroller.style[vendor + 'TransitionTimingFunction'] = 'cubic-bezier(0.33,0.66,0.66,1)'; + + if (that.options.useTransform) that.scroller.style[vendor + 'Transform'] = trnOpen + that.x + 'px,' + that.y + 'px' + trnClose; + else that.scroller.style.cssText += ';position:absolute;top:' + that.y + 'px;left:' + that.x + 'px'; + + that.refresh(); + + that._bind(RESIZE_EV, window); + that._bind(START_EV); + if (!hasTouch) that._bind('mouseout', that.wrapper); + }; + +// Prototype +iScroll.prototype = { + enabled: true, + x: 0, + y: 0, + steps: [], + scale: 1, + + handleEvent: function (e) { + var that = this; + switch(e.type) { + case START_EV: + if (!hasTouch && e.button !== 0) return; + that._start(e); + break; + case MOVE_EV: that._move(e); break; + case END_EV: + case CANCEL_EV: that._end(e); break; + case RESIZE_EV: that._resize(); break; + case 'mouseout': that._mouseout(e); break; + case 'webkitTransitionEnd': that._transitionEnd(e); break; + } + }, + + _resize: function () { + this.refresh(); + }, + + _pos: function (x, y) { + x = this.hScroll ? x : 0; + y = this.vScroll ? y : 0; + + if (this.options.useTransform) { + this.scroller.style[vendor + 'Transform'] = trnOpen + x + 'px,' + y + 'px' + trnClose + ' scale(' + this.scale + ')'; + } else { + x = mround(x); + y = mround(y); + this.scroller.style.left = x + 'px'; + this.scroller.style.top = y + 'px'; + } + + this.x = x; + this.y = y; + }, + + _start: function (e) { + var that = this, + point = hasTouch ? e.touches[0] : e, + matrix, x, y; + + if (!that.enabled) return; + + if (that.options.onBeforeScrollStart) that.options.onBeforeScrollStart.call(that, e); + + if (that.options.useTransition) that._transitionTime(0); + + that.moved = false; + that.animating = false; + that.zoomed = false; + that.distX = 0; + that.distY = 0; + that.absDistX = 0; + that.absDistY = 0; + that.dirX = 0; + that.dirY = 0; + + if (that.options.momentum) { + if (that.options.useTransform) { + // Very lame general purpose alternative to CSSMatrix + matrix = getComputedStyle(that.scroller, null)[vendor + 'Transform'].replace(/[^0-9-.,]/g, '').split(','); + x = matrix[4] * 1; + y = matrix[5] * 1; + } else { + x = getComputedStyle(that.scroller, null).left.replace(/[^0-9-]/g, '') * 1; + y = getComputedStyle(that.scroller, null).top.replace(/[^0-9-]/g, '') * 1; + } + + if (x != that.x || y != that.y) { + if (that.options.useTransition) that._unbind('webkitTransitionEnd'); + else cancelFrame(that.aniTime); + that.steps = []; + that._pos(x, y); + } + } + + that.startX = that.x; + that.startY = that.y; + that.pointX = point.pageX; + that.pointY = point.pageY; + + that.startTime = e.timeStamp || Date.now(); + + if (that.options.onScrollStart) that.options.onScrollStart.call(that, e); + + that._bind(MOVE_EV); + that._bind(END_EV); + that._bind(CANCEL_EV); + }, + + _move: function (e) { + var that = this, + point = hasTouch ? e.touches[0] : e, + deltaX = point.pageX - that.pointX, + deltaY = point.pageY - that.pointY, + newX = that.x + deltaX, + newY = that.y + deltaY, + timestamp = e.timeStamp || Date.now(); + + if (that.options.onBeforeScrollMove) that.options.onBeforeScrollMove.call(that, e); + + that.pointX = point.pageX; + that.pointY = point.pageY; + + // Slow down if outside of the boundaries + if (newX > 0 || newX < that.maxScrollX) { + newX = that.options.bounce ? that.x + (deltaX / 2) : newX >= 0 || that.maxScrollX >= 0 ? 0 : that.maxScrollX; + } + if (newY > 0 || newY < that.maxScrollY) { + newY = that.options.bounce ? that.y + (deltaY / 2) : newY >= 0 || that.maxScrollY >= 0 ? 0 : that.maxScrollY; + } + + that.distX += deltaX; + that.distY += deltaY; + that.absDistX = m.abs(that.distX); + that.absDistY = m.abs(that.distY); + + if (that.absDistX < 6 && that.absDistY < 6) { + return; + } + + // Lock direction + if (that.options.lockDirection) { + if (that.absDistX > that.absDistY + 5) { + newY = that.y; + deltaY = 0; + } else if (that.absDistY > that.absDistX + 5) { + newX = that.x; + deltaX = 0; + } + } + + that.moved = true; + that._pos(newX, newY); + that.dirX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0; + that.dirY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0; + + if (timestamp - that.startTime > 300) { + that.startTime = timestamp; + that.startX = that.x; + that.startY = that.y; + } + + if (that.options.onScrollMove) that.options.onScrollMove.call(that, e); + }, + + _end: function (e) { + if (hasTouch && e.touches.length != 0) return; + + var that = this, + point = hasTouch ? e.changedTouches[0] : e, + target, ev, + momentumX = { dist:0, time:0 }, + momentumY = { dist:0, time:0 }, + duration = (e.timeStamp || Date.now()) - that.startTime, + newPosX = that.x, + newPosY = that.y, + newDuration; + + that._unbind(MOVE_EV); + that._unbind(END_EV); + that._unbind(CANCEL_EV); + + if (that.options.onBeforeScrollEnd) that.options.onBeforeScrollEnd.call(that, e); + + if (!that.moved) { + if (hasTouch) { + // Find the last touched element + target = point.target; + while (target.nodeType != 1) target = target.parentNode; + + if (target.tagName != 'SELECT' && target.tagName != 'INPUT' && target.tagName != 'TEXTAREA') { + ev = document.createEvent('MouseEvents'); + ev.initMouseEvent('click', true, true, e.view, 1, + point.screenX, point.screenY, point.clientX, point.clientY, + e.ctrlKey, e.altKey, e.shiftKey, e.metaKey, + 0, null); + ev._fake = true; + target.dispatchEvent(ev); + } + } + + that._resetPos(200); + + if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e); + return; + } + + if (duration < 300 && that.options.momentum) { + momentumX = newPosX ? that._momentum(newPosX - that.startX, duration, -that.x, that.scrollerW - that.wrapperW + that.x, that.options.bounce ? that.wrapperW : 0) : momentumX; + momentumY = newPosY ? that._momentum(newPosY - that.startY, duration, -that.y, (that.maxScrollY < 0 ? that.scrollerH - that.wrapperH + that.y : 0), that.options.bounce ? that.wrapperH : 0) : momentumY; + + newPosX = that.x + momentumX.dist; + newPosY = that.y + momentumY.dist; + + if ((that.x > 0 && newPosX > 0) || (that.x < that.maxScrollX && newPosX < that.maxScrollX)) momentumX = { dist:0, time:0 }; + if ((that.y > 0 && newPosY > 0) || (that.y < that.maxScrollY && newPosY < that.maxScrollY)) momentumY = { dist:0, time:0 }; + } + + if (momentumX.dist || momentumY.dist) { + newDuration = m.max(m.max(momentumX.time, momentumY.time), 10); + + that.scrollTo(mround(newPosX), mround(newPosY), newDuration); + + if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e); + return; + } + + that._resetPos(200); + if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e); + }, + + _resetPos: function (time) { + var that = this, + resetX = that.x >= 0 ? 0 : that.x < that.maxScrollX ? that.maxScrollX : that.x, + resetY = that.y >= 0 || that.maxScrollY > 0 ? 0 : that.y < that.maxScrollY ? that.maxScrollY : that.y; + + if (resetX == that.x && resetY == that.y) { + if (that.moved) { + if (that.options.onScrollEnd) that.options.onScrollEnd.call(that); // Execute custom code on scroll end + that.moved = false; + } + + return; + } + + that.scrollTo(resetX, resetY, time || 0); + }, + + _mouseout: function (e) { + var t = e.relatedTarget; + + if (!t) { + this._end(e); + return; + } + + while (t = t.parentNode) if (t == this.wrapper) return; + + this._end(e); + }, + + _transitionEnd: function (e) { + var that = this; + + if (e.target != that.scroller) return; + + that._unbind('webkitTransitionEnd'); + + that._startAni(); + }, + + /** + * + * Utilities + * + */ + _startAni: function () { + var that = this, + startX = that.x, startY = that.y, + startTime = Date.now(), + step, easeOut, + animate; + + if (that.animating) return; + + if (!that.steps.length) { + that._resetPos(400); + return; + } + + step = that.steps.shift(); + + if (step.x == startX && step.y == startY) step.time = 0; + + that.animating = true; + that.moved = true; + + if (that.options.useTransition) { + that._transitionTime(step.time); + that._pos(step.x, step.y); + that.animating = false; + if (step.time) that._bind('webkitTransitionEnd'); + else that._resetPos(0); + return; + } + + animate = function () { + var now = Date.now(), + newX, newY; + + if (now >= startTime + step.time) { + that._pos(step.x, step.y); + that.animating = false; + if (that.options.onAnimationEnd) that.options.onAnimationEnd.call(that); // Execute custom code on animation end + that._startAni(); + return; + } + + now = (now - startTime) / step.time - 1; + easeOut = m.sqrt(1 - now * now); + newX = (step.x - startX) * easeOut + startX; + newY = (step.y - startY) * easeOut + startY; + that._pos(newX, newY); + if (that.animating) that.aniTime = nextFrame(animate); + }; + + animate(); + }, + + _transitionTime: function (time) { + this.scroller.style[vendor + 'TransitionDuration'] = time + 'ms'; + }, + + _momentum: function (dist, time, maxDistUpper, maxDistLower, size) { + var deceleration = 0.0006, + speed = m.abs(dist) / time, + newDist = (speed * speed) / (2 * deceleration), + newTime = 0, outsideDist = 0; + + // Proportinally reduce speed if we are outside of the boundaries + if (dist > 0 && newDist > maxDistUpper) { + outsideDist = size / (6 / (newDist / speed * deceleration)); + maxDistUpper = maxDistUpper + outsideDist; + speed = speed * maxDistUpper / newDist; + newDist = maxDistUpper; + } else if (dist < 0 && newDist > maxDistLower) { + outsideDist = size / (6 / (newDist / speed * deceleration)); + maxDistLower = maxDistLower + outsideDist; + speed = speed * maxDistLower / newDist; + newDist = maxDistLower; + } + + newDist = newDist * (dist < 0 ? -1 : 1); + newTime = speed / deceleration; + + return { dist: newDist, time: mround(newTime) }; + }, + + _offset: function (el) { + var left = -el.offsetLeft, + top = -el.offsetTop; + + while (el = el.offsetParent) { + left -= el.offsetLeft; + top -= el.offsetTop; + } + + return { left: left, top: top }; + }, + + _bind: function (type, el, bubble) { + (el || this.scroller).addEventListener(type, this, !!bubble); + }, + + _unbind: function (type, el, bubble) { + (el || this.scroller).removeEventListener(type, this, !!bubble); + }, + + + /** + * + * Public methods + * + */ + destroy: function () { + var that = this; + + that.scroller.style[vendor + 'Transform'] = ''; + + // Remove the event listeners + that._unbind(RESIZE_EV, window); + that._unbind(START_EV); + that._unbind(MOVE_EV); + that._unbind(END_EV); + that._unbind(CANCEL_EV); + that._unbind('mouseout', that.wrapper); + if (that.options.useTransition) that._unbind('webkitTransitionEnd'); + + if (that.options.onDestroy) that.options.onDestroy.call(that); + }, + + refresh: function () { + var that = this, + offset; + + that.wrapperW = that.wrapper.clientWidth; + that.wrapperH = that.wrapper.clientHeight; + + that.scrollerW = that.scroller.offsetWidth; + that.scrollerH = that.scroller.offsetHeight; + that.maxScrollX = that.wrapperW - that.scrollerW; + that.maxScrollY = that.wrapperH - that.scrollerH; + that.dirX = 0; + that.dirY = 0; + + that.hScroll = that.options.hScroll && that.maxScrollX < 0; + that.vScroll = that.options.vScroll && (!that.options.bounceLock && !that.hScroll || that.scrollerH > that.wrapperH); + + offset = that._offset(that.wrapper); + that.wrapperOffsetLeft = -offset.left; + that.wrapperOffsetTop = -offset.top; + + + that.scroller.style[vendor + 'TransitionDuration'] = '0'; + + that._resetPos(200); + }, + + scrollTo: function (x, y, time, relative) { + var that = this, + step = x, + i, l; + + that.stop(); + + if (!step.length) step = [{ x: x, y: y, time: time, relative: relative }]; + + for (i=0, l=step.length; i<l; i++) { + if (step[i].relative) { step[i].x = that.x - step[i].x; step[i].y = that.y - step[i].y; } + that.steps.push({ x: step[i].x, y: step[i].y, time: step[i].time || 0 }); + } + + that._startAni(); + }, + + scrollToElement: function (el, time) { + var that = this, pos; + el = el.nodeType ? el : that.scroller.querySelector(el); + if (!el) return; + + pos = that._offset(el); + pos.left += that.wrapperOffsetLeft; + pos.top += that.wrapperOffsetTop; + + pos.left = pos.left > 0 ? 0 : pos.left < that.maxScrollX ? that.maxScrollX : pos.left; + pos.top = pos.top > 0 ? 0 : pos.top < that.maxScrollY ? that.maxScrollY : pos.top; + time = time === undefined ? m.max(m.abs(pos.left)*2, m.abs(pos.top)*2) : time; + + that.scrollTo(pos.left, pos.top, time); + }, + + disable: function () { + this.stop(); + this._resetPos(0); + this.enabled = false; + + // If disabled after touchstart we make sure that there are no left over events + this._unbind(MOVE_EV); + this._unbind(END_EV); + this._unbind(CANCEL_EV); + }, + + enable: function () { + this.enabled = true; + }, + + stop: function () { + cancelFrame(this.aniTime); + this.steps = []; + this.moved = false; + this.animating = false; + } +}; + +if (typeof exports !== 'undefined') exports.iScroll = iScroll; +else window.iScroll = iScroll; + +})(); |