1157 lines
50 KiB
JavaScript
1157 lines
50 KiB
JavaScript
/*
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* (c) Copyright Ascensio System SIA 2010-2014
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
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* EU, LV-1021.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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/*
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* iScroll v4.2.5 ~ Copyright (c) 2012 Matteo Spinelli, http://cubiq.org
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* Released under MIT license, http://cubiq.org/license
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*/
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(function (window, doc) {
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var m = Math,
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dummyStyle = doc.createElement("div").style,
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vendor = (function () {
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var vendors = "t,webkitT,MozT,msT,OT".split(","),
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t,
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i = 0,
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l = vendors.length;
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for (; i < l; i++) {
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t = vendors[i] + "ransform";
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if (t in dummyStyle) {
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return vendors[i].substr(0, vendors[i].length - 1);
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}
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}
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return false;
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})(),
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cssVendor = vendor ? "-" + vendor.toLowerCase() + "-" : "",
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transform = prefixStyle("transform"),
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transitionProperty = prefixStyle("transitionProperty"),
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transitionDuration = prefixStyle("transitionDuration"),
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transformOrigin = prefixStyle("transformOrigin"),
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transitionTimingFunction = prefixStyle("transitionTimingFunction"),
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transitionDelay = prefixStyle("transitionDelay"),
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isAndroid = (/android/gi).test(navigator.appVersion),
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isIDevice = (/iphone|ipad/gi).test(navigator.appVersion),
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isTouchPad = (/hp-tablet/gi).test(navigator.appVersion),
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has3d = prefixStyle("perspective") in dummyStyle,
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hasTouch = "ontouchstart" in window && !isTouchPad,
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hasTransform = vendor !== false,
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hasTransitionEnd = prefixStyle("transition") in dummyStyle,
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TRNEND_EV = (function () {
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if (vendor === false) {
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return false;
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}
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var transitionEnd = {
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"": "transitionend",
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"webkit": "webkitTransitionEnd",
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"Moz": "transitionend",
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"O": "otransitionend",
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"ms": "MSTransitionEnd"
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};
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return transitionEnd[vendor];
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})(),
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nextFrame = (function () {
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return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame ||
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function (callback) {
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return setTimeout(callback, 1);
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};
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})(),
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cancelFrame = (function () {
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return window.cancelRequestAnimationFrame || window.webkitCancelAnimationFrame || window.webkitCancelRequestAnimationFrame || window.mozCancelRequestAnimationFrame || window.oCancelRequestAnimationFrame || window.msCancelRequestAnimationFrame || clearTimeout;
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})(),
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translateZ = has3d ? " translateZ(0)" : "",
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CTouchScroll = function (api, options, scroller) {
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var that = this,
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i;
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that.api = api;
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that.wrapper = api.m_oMainView.HtmlElement;
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that.wrapper.style.overflow = "hidden";
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that.scroller = (scroller !== undefined) ? scroller : null;
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that.options = {
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hScroll: true,
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vScroll: true,
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x: 0,
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y: 0,
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bounce: false,
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bounceLock: false,
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momentum: true,
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lockDirection: true,
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useTransform: true,
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useTransition: false,
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topOffset: 0,
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checkDOMChanges: false,
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handleClick: true,
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hScrollbar: true,
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vScrollbar: true,
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fixedScrollbar: isAndroid,
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hideScrollbar: true,
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fadeScrollbar: isIDevice && has3d,
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scrollbarClass: "",
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zoom: false,
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zoomMin: 1,
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zoomMax: 4,
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doubleTapZoom: 2,
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wheelAction: "scroll",
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snap: false,
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snapThreshold: 1,
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onRefresh: null,
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onBeforeScrollStart: null,
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onScrollStart: null,
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onBeforeScrollMove: null,
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onScrollMove: null,
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onBeforeScrollEnd: null,
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onScrollEnd: null,
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onTouchEnd: null,
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onDestroy: null,
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onZoomStart: null,
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onZoom: null,
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onZoomEnd: null
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};
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for (i in options) {
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that.options[i] = options[i];
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}
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that.x = that.options.x;
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that.y = that.options.y;
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that.options.useTransform = hasTransform && that.options.useTransform;
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that.options.hScrollbar = that.options.hScroll && that.options.hScrollbar;
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that.options.vScrollbar = that.options.vScroll && that.options.vScrollbar;
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that.options.zoom = that.options.useTransform && that.options.zoom;
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that.options.useTransition = hasTransitionEnd && that.options.useTransition;
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if (that.options.zoom && isAndroid) {
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translateZ = "";
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}
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if (that.scroller) {
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that.scroller.style[transitionProperty] = that.options.useTransform ? cssVendor + "transform" : "top left";
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that.scroller.style[transitionDuration] = "0";
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that.scroller.style[transformOrigin] = "0 0";
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if (that.options.useTransition) {
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that.scroller.style[transitionTimingFunction] = "cubic-bezier(0.33,0.66,0.66,1)";
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}
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if (that.options.useTransform) {
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that.scroller.style[transform] = "translate(" + that.x + "px," + that.y + "px)" + translateZ;
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} else {
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that.scroller.style.cssText += ";position:absolute;top:" + that.y + "px;left:" + that.x + "px";
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}
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}
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if (that.options.useTransition) {
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that.options.fixedScrollbar = true;
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}
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that.refresh();
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};
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CTouchScroll.prototype = {
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enabled: true,
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x: 0,
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y: 0,
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steps: [],
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scale: 1,
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currPageX: 0,
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currPageY: 0,
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pagesX: [],
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pagesY: [],
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aniTime: null,
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wheelZoomCount: 0,
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handleEvent: function (e) {
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var that = this;
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switch (e.type) {
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case TRNEND_EV:
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that._transitionEnd(e);
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break;
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}
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},
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_scrollbar: function (dir) {
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var that = this,
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bar;
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if (dir == "h") {
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if (!that.hScrollbar) {
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if (that.hScrollbarWrapper) {
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if (hasTransform) {
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that.hScrollbarIndicator.style[transform] = "";
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}
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that.hScrollbarWrapper.parentNode.removeChild(that.hScrollbarWrapper);
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that.hScrollbarWrapper = null;
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that.hScrollbarIndicator = null;
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}
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return;
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}
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if (!that.hScrollbarWrapper) {
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bar = doc.createElement("div");
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if (that.options.scrollbarClass) {
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bar.className = that.options.scrollbarClass + dir.toUpperCase();
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} else {
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bar.style.cssText = "position:absolute;z-index:100;height:7px;bottom:1px;left:2px;right:" + (that.vScrollbar ? "7" : "2") + "px";
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}
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bar.style.cssText += ";pointer-events:none;" + cssVendor + "transition-property:opacity;" + cssVendor + "transition-duration:" + (that.options.fadeScrollbar ? "350ms" : "0") + ";overflow:hidden;opacity:" + (that.options.hideScrollbar ? "0" : "1");
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that.wrapper.appendChild(bar);
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that.hScrollbarWrapper = bar;
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bar = doc.createElement("div");
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if (!that.options.scrollbarClass) {
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bar.style.cssText = "position:absolute;z-index:100;background:rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.9);" + cssVendor + "background-clip:padding-box;" + cssVendor + "box-sizing:border-box;height:100%;" + cssVendor + "border-radius:3px;border-radius:3px";
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}
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bar.style.cssText += ";pointer-events:none;" + cssVendor + "transition-property:" + cssVendor + "transform;" + cssVendor + "transition-timing-function:cubic-bezier(0.33,0.66,0.66,1);" + cssVendor + "transition-duration:0;" + cssVendor + "transform: translate(0,0)" + translateZ;
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if (that.options.useTransition) {
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bar.style.cssText += ";" + cssVendor + "transition-timing-function:cubic-bezier(0.33,0.66,0.66,1)";
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}
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that.hScrollbarWrapper.appendChild(bar);
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that.hScrollbarIndicator = bar;
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}
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that.hScrollbarSize = that.hScrollbarWrapper.clientWidth;
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that.hScrollbarIndicatorSize = m.max(m.round(that.hScrollbarSize * that.hScrollbarSize / that.scrollerW), 8);
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that.hScrollbarIndicator.style.width = that.hScrollbarIndicatorSize + "px";
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that.hScrollbarMaxScroll = that.hScrollbarSize - that.hScrollbarIndicatorSize;
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that.hScrollbarProp = that.hScrollbarMaxScroll / that.maxScrollX;
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that._scrollbarPos(dir, true);
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} else {
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if (dir == "v") {
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if (!that.vScrollbar) {
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if (that.vScrollbarWrapper) {
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if (hasTransform) {
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that.vScrollbarIndicator.style[transform] = "";
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}
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that.vScrollbarWrapper.parentNode.removeChild(that.vScrollbarWrapper);
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that.vScrollbarWrapper = null;
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that.vScrollbarIndicator = null;
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}
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return;
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}
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if (!that.vScrollbarWrapper) {
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bar = doc.createElement("div");
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if (that.options.scrollbarClass) {
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bar.className = that.options.scrollbarClass + dir.toUpperCase();
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} else {
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bar.style.cssText = "position:absolute;z-index:100;width:7px;bottom:" + (that.hScrollbar ? "7" : "2") + "px;top:2px;right:1px";
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}
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bar.style.cssText += ";pointer-events:none;" + cssVendor + "transition-property:opacity;" + cssVendor + "transition-duration:" + (that.options.fadeScrollbar ? "350ms" : "0") + ";overflow:hidden;opacity:" + (that.options.hideScrollbar ? "0" : "1");
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that.wrapper.appendChild(bar);
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that.vScrollbarWrapper = bar;
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bar = doc.createElement("div");
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if (!that.options.scrollbarClass) {
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bar.style.cssText = "position:absolute;z-index:100;background:rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.9);" + cssVendor + "background-clip:padding-box;" + cssVendor + "box-sizing:border-box;width:100%;" + cssVendor + "border-radius:3px;border-radius:3px";
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}
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bar.style.cssText += ";pointer-events:none;" + cssVendor + "transition-property:" + cssVendor + "transform;" + cssVendor + "transition-timing-function:cubic-bezier(0.33,0.66,0.66,1);" + cssVendor + "transition-duration:0;" + cssVendor + "transform: translate(0,0)" + translateZ;
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if (that.options.useTransition) {
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bar.style.cssText += ";" + cssVendor + "transition-timing-function:cubic-bezier(0.33,0.66,0.66,1)";
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}
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that.vScrollbarWrapper.appendChild(bar);
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that.vScrollbarIndicator = bar;
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}
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that.vScrollbarSize = that.vScrollbarWrapper.clientHeight;
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that.vScrollbarIndicatorSize = m.max(m.round(that.vScrollbarSize * that.vScrollbarSize / that.scrollerH), 8);
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that.vScrollbarIndicator.style.height = that.vScrollbarIndicatorSize + "px";
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that.vScrollbarMaxScroll = that.vScrollbarSize - that.vScrollbarIndicatorSize;
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that.vScrollbarProp = that.vScrollbarMaxScroll / that.maxScrollY;
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that._scrollbarPos(dir, true);
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}
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}
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},
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_resize: function () {
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var that = this;
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setTimeout(function () {
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that.refresh();
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},
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isAndroid ? 200 : 0);
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},
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_pos: function (x, y, isAnim) {
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if (this.zoomed) {
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return;
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}
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x = this.hScroll ? x : 0;
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y = this.vScroll ? y : 0;
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this.x = x;
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this.y = y;
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if (isAnim === true) {
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this.api.NoneRepaintPages = true;
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} else {
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this.api.NoneRepaintPages = false;
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}
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if (this.api.ReaderModeDiv == null) {
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if (this.hScroll) {
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this.api.m_oScrollHorApi.scrollToX(-this.x);
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}
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if (this.vScroll) {
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this.api.m_oScrollVerApi.scrollToY(-this.y);
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}
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} else {
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if (this.scroller) {
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if (this.options.useTransform) {
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this.scroller.style[transform] = "translate(" + x + "px," + y + "px) scale(" + this.scale + ")" + translateZ;
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} else {
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x = m.round(x);
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y = m.round(y);
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this.scroller.style.left = x + "px";
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this.scroller.style.top = y + "px";
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}
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}
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}
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this._scrollbarPos("h");
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this._scrollbarPos("v");
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},
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_scrollbarPos: function (dir, hidden) {
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var that = this;
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var size = 0;
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var pos = that.y;
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if (dir == "h") {
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pos = that.x;
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if (!that.hScrollbar) {
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return;
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}
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pos = that.hScrollbarProp * pos;
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if (pos < 0) {
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if (!that.options.fixedScrollbar) {
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size = that.hScrollbarIndicatorSize + m.round(pos * 3);
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if (size < 8) {
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size = 8;
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}
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that.hScrollbarIndicator.style["width"] = size + "px";
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}
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pos = 0;
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} else {
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if (pos > that.hScrollbarMaxScroll) {
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if (!that.options.fixedScrollbar) {
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size = that.hScrollbarIndicatorSize - m.round((pos - that.hScrollbarMaxScroll) * 3);
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if (size < 8) {
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size = 8;
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}
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that.hScrollbarIndicator.style["width"] = size + "px";
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pos = that.hScrollbarMaxScroll + (that.hScrollbarIndicatorSize - size);
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} else {
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pos = that.hScrollbarMaxScroll;
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}
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}
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}
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that.hScrollbarWrapper.style[transitionDelay] = "0";
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that.hScrollbarWrapper.style.opacity = hidden && that.options.hideScrollbar ? "0" : "1";
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that.hScrollbarIndicator.style[transform] = "translate(" + pos + "px,0)" + translateZ;
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} else {
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if (!that.vScrollbar) {
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return;
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}
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pos = that.vScrollbarProp * pos;
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if (pos < 0) {
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if (!that.options.fixedScrollbar) {
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size = that.vScrollbarIndicatorSize + m.round(pos * 3);
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if (size < 8) {
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size = 8;
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}
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that.vScrollbarIndicator.style["height"] = size + "px";
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}
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pos = 0;
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} else {
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if (pos > that.vScrollbarMaxScroll) {
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if (!that.options.fixedScrollbar) {
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size = that.vScrollbarIndicatorSize - m.round((pos - that.vScrollbarMaxScroll) * 3);
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if (size < 8) {
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size = 8;
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}
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that.vScrollbarIndicator.style["height"] = size + "px";
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pos = that.vScrollbarMaxScroll + (that.vScrollbarIndicatorSize - size);
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} else {
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pos = that.vScrollbarMaxScroll;
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}
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}
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}
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that.vScrollbarWrapper.style[transitionDelay] = "0";
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that.vScrollbarWrapper.style.opacity = hidden && that.options.hideScrollbar ? "0" : "1";
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that.vScrollbarIndicator.style[transform] = "translate(0," + pos + "px)" + translateZ;
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}
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},
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_start: function (e) {
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var that = this,
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point = hasTouch ? e.touches[0] : e,
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matrix,
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x,
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y,
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c1,
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c2;
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|
if (!that.enabled) {
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return;
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}
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|
if (that.options.onBeforeScrollStart) {
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that.options.onBeforeScrollStart.call(that, e);
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}
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|
if (that.options.useTransition || that.options.zoom) {
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that._transitionTime(0);
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}
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|
that.moved = false;
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that.animating = false;
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|
that.zoomed = false;
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|
that.distX = 0;
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that.distY = 0;
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that.absDistX = 0;
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that.absDistY = 0;
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that.dirX = 0;
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that.dirY = 0;
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if (that.options.zoom && hasTouch && e.touches.length > 1) {
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c1 = m.abs(e.touches[0].pageX - e.touches[1].pageX);
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c2 = m.abs(e.touches[0].pageY - e.touches[1].pageY);
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that.touchesDistStart = m.sqrt(c1 * c1 + c2 * c2);
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that.originX = m.abs(e.touches[0].pageX + e.touches[1].pageX - that.wrapperOffsetLeft * 2) / 2 - that.x;
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that.originY = m.abs(e.touches[0].pageY + e.touches[1].pageY - that.wrapperOffsetTop * 2) / 2 - that.y;
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if (that.options.onZoomStart) {
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that.options.onZoomStart.call(that, e);
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|
}
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}
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|
if (that.options.momentum) {
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cancelFrame(that.aniTime);
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|
that.steps = [];
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that._pos(this.x, this.y);
|
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if (that.options.onScrollEnd) {
|
|
that.options.onScrollEnd.call(that);
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|
}
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}
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|
that.absStartX = that.x;
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that.absStartY = that.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);
|
|
}
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|
},
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|
_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,
|
|
c1,
|
|
c2,
|
|
scale,
|
|
timestamp = e.timeStamp || Date.now();
|
|
if (that.options.onBeforeScrollMove) {
|
|
that.options.onBeforeScrollMove.call(that, e);
|
|
}
|
|
if (that.options.zoom && hasTouch && e.touches.length > 1 && that.scroller) {
|
|
c1 = m.abs(e.touches[0].pageX - e.touches[1].pageX);
|
|
c2 = m.abs(e.touches[0].pageY - e.touches[1].pageY);
|
|
that.touchesDist = m.sqrt(c1 * c1 + c2 * c2);
|
|
that.zoomed = true;
|
|
scale = 1 / that.touchesDistStart * that.touchesDist * this.scale;
|
|
if (scale < that.options.zoomMin) {
|
|
scale = 0.5 * that.options.zoomMin * Math.pow(2, scale / that.options.zoomMin);
|
|
} else {
|
|
if (scale > that.options.zoomMax) {
|
|
scale = 2 * that.options.zoomMax * Math.pow(0.5, that.options.zoomMax / scale);
|
|
}
|
|
}
|
|
that.lastScale = scale / this.scale;
|
|
newX = this.originX - this.originX * that.lastScale + this.x;
|
|
newY = this.originY - this.originY * that.lastScale + this.y;
|
|
this.scroller.style[transform] = "translate(" + newX + "px," + newY + "px) scale(" + scale + ")" + translateZ;
|
|
if (that.options.onZoom) {
|
|
that.options.onZoom.call(that, e);
|
|
}
|
|
return;
|
|
}
|
|
that.pointX = point.pageX;
|
|
that.pointY = point.pageY;
|
|
if (newX > 0 || newX < that.maxScrollX) {
|
|
newX = that.options.bounce ? that.x + (deltaX / 2) : newX >= 0 || that.maxScrollX >= 0 ? 0 : that.maxScrollX;
|
|
}
|
|
if (newY > that.minScrollY || newY < that.maxScrollY) {
|
|
newY = that.options.bounce ? that.y + (deltaY / 2) : newY >= that.minScrollY || that.maxScrollY >= 0 ? that.minScrollY : 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;
|
|
}
|
|
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,
|
|
distX,
|
|
distY,
|
|
newDuration,
|
|
snap,
|
|
scale;
|
|
if (that.options.onBeforeScrollEnd) {
|
|
that.options.onBeforeScrollEnd.call(that, e);
|
|
}
|
|
if (that.zoomed) {
|
|
scale = that.scale * that.lastScale;
|
|
scale = Math.max(that.options.zoomMin, scale);
|
|
scale = Math.min(that.options.zoomMax, scale);
|
|
that.lastScale = scale / that.scale;
|
|
that.scale = scale;
|
|
that.x = that.originX - that.originX * that.lastScale + that.x;
|
|
that.y = that.originY - that.originY * that.lastScale + that.y;
|
|
that.scroller.style[transitionDuration] = "200ms";
|
|
that.scroller.style[transform] = "translate(" + that.x + "px," + that.y + "px) scale(" + that.scale + ")" + translateZ;
|
|
that.zoomed = false;
|
|
that.refresh();
|
|
if (that.options.onZoomEnd) {
|
|
that.options.onZoomEnd.call(that, e);
|
|
}
|
|
return;
|
|
}
|
|
if (!that.moved) {
|
|
if (hasTouch) {
|
|
if (that.doubleTapTimer && that.options.zoom) {
|
|
clearTimeout(that.doubleTapTimer);
|
|
that.doubleTapTimer = null;
|
|
if (that.options.onZoomStart) {
|
|
that.options.onZoomStart.call(that, e);
|
|
}
|
|
that.zoom(that.pointX, that.pointY, that.scale == 1 ? that.options.doubleTapZoom : 1);
|
|
if (that.options.onZoomEnd) {
|
|
setTimeout(function () {
|
|
that.options.onZoomEnd.call(that, e);
|
|
},
|
|
200);
|
|
}
|
|
} else {
|
|
if (this.options.handleClick) {
|
|
that.doubleTapTimer = setTimeout(function () {
|
|
that.doubleTapTimer = null;
|
|
target = point.target;
|
|
while (target.nodeType != 1) {
|
|
target = target.parentNode;
|
|
}
|
|
if (target.tagName != "SELECT" && target.tagName != "INPUT" && target.tagName != "TEXTAREA") {
|
|
ev = doc.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.options.zoom ? 250 : 0);
|
|
}
|
|
}
|
|
}
|
|
that._resetPos(400);
|
|
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 - that.minScrollY : 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 > that.minScrollY && newPosY > that.minScrollY) || (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);
|
|
if (that.options.snap) {
|
|
distX = newPosX - that.absStartX;
|
|
distY = newPosY - that.absStartY;
|
|
if (m.abs(distX) < that.options.snapThreshold && m.abs(distY) < that.options.snapThreshold) {
|
|
that.scrollTo(that.absStartX, that.absStartY, 200);
|
|
} else {
|
|
snap = that._snap(newPosX, newPosY);
|
|
newPosX = snap.x;
|
|
newPosY = snap.y;
|
|
newDuration = m.max(snap.time, newDuration);
|
|
}
|
|
}
|
|
that.scrollTo(m.round(newPosX), m.round(newPosY), newDuration);
|
|
if (that.options.onTouchEnd) {
|
|
that.options.onTouchEnd.call(that, e);
|
|
}
|
|
return;
|
|
}
|
|
if (that.options.snap) {
|
|
distX = newPosX - that.absStartX;
|
|
distY = newPosY - that.absStartY;
|
|
if (m.abs(distX) < that.options.snapThreshold && m.abs(distY) < that.options.snapThreshold) {
|
|
that.scrollTo(that.absStartX, that.absStartY, 200);
|
|
} else {
|
|
snap = that._snap(that.x, that.y);
|
|
if (snap.x != that.x || snap.y != that.y) {
|
|
that.scrollTo(snap.x, snap.y, snap.time);
|
|
}
|
|
}
|
|
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 >= that.minScrollY || that.maxScrollY > 0 ? that.minScrollY : that.y < that.maxScrollY ? that.maxScrollY : that.y;
|
|
if (resetX == that.x && resetY == that.y) {
|
|
if (that.moved) {
|
|
that.moved = false;
|
|
if (that.options.onScrollEnd) {
|
|
that.options.onScrollEnd.call(that);
|
|
}
|
|
}
|
|
if (that.hScrollbar && that.options.hideScrollbar) {
|
|
if (vendor == "webkit") {
|
|
that.hScrollbarWrapper.style[transitionDelay] = "300ms";
|
|
}
|
|
that.hScrollbarWrapper.style.opacity = "0";
|
|
}
|
|
if (that.vScrollbar && that.options.hideScrollbar) {
|
|
if (vendor == "webkit") {
|
|
that.vScrollbarWrapper.style[transitionDelay] = "300ms";
|
|
}
|
|
that.vScrollbarWrapper.style.opacity = "0";
|
|
}
|
|
return;
|
|
}
|
|
that.scrollTo(resetX, resetY, time || 0);
|
|
},
|
|
_wheel: function (e) {
|
|
var that = this,
|
|
wheelDeltaX, wheelDeltaY, deltaX, deltaY, deltaScale;
|
|
if ("wheelDeltaX" in e) {
|
|
wheelDeltaX = e["wheelDeltaX"] / 12;
|
|
wheelDeltaY = e["wheelDeltaY"] / 12;
|
|
} else {
|
|
if ("wheelDelta" in e) {
|
|
wheelDeltaX = wheelDeltaY = e["wheelDelta"] / 12;
|
|
} else {
|
|
if ("detail" in e) {
|
|
wheelDeltaX = wheelDeltaY = -e["detail"] * 3;
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
if (that.options.wheelAction == "zoom") {
|
|
deltaScale = that.scale * Math.pow(2, 1 / 3 * (wheelDeltaY ? wheelDeltaY / Math.abs(wheelDeltaY) : 0));
|
|
if (deltaScale < that.options.zoomMin) {
|
|
deltaScale = that.options.zoomMin;
|
|
}
|
|
if (deltaScale > that.options.zoomMax) {
|
|
deltaScale = that.options.zoomMax;
|
|
}
|
|
if (deltaScale != that.scale) {
|
|
if (!that.wheelZoomCount && that.options.onZoomStart) {
|
|
that.options.onZoomStart.call(that, e);
|
|
}
|
|
that.wheelZoomCount++;
|
|
that.zoom(e.pageX, e.pageY, deltaScale, 400);
|
|
setTimeout(function () {
|
|
that.wheelZoomCount--;
|
|
if (!that.wheelZoomCount && that.options.onZoomEnd) {
|
|
that.options.onZoomEnd.call(that, e);
|
|
}
|
|
},
|
|
400);
|
|
}
|
|
return;
|
|
}
|
|
deltaX = that.x + wheelDeltaX;
|
|
deltaY = that.y + wheelDeltaY;
|
|
if (deltaX > 0) {
|
|
deltaX = 0;
|
|
} else {
|
|
if (deltaX < that.maxScrollX) {
|
|
deltaX = that.maxScrollX;
|
|
}
|
|
}
|
|
if (deltaY > that.minScrollY) {
|
|
deltaY = that.minScrollY;
|
|
} else {
|
|
if (deltaY < that.maxScrollY) {
|
|
deltaY = that.maxScrollY;
|
|
}
|
|
}
|
|
if (that.maxScrollY < 0) {
|
|
that.scrollTo(deltaX, deltaY, 0);
|
|
}
|
|
},
|
|
_transitionEnd: function (e) {
|
|
var that = this;
|
|
if (e.target != that.scroller) {
|
|
return;
|
|
}
|
|
that._unbind(TRNEND_EV);
|
|
that._startAni();
|
|
},
|
|
_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(TRNEND_EV);
|
|
} 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(that);
|
|
}
|
|
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, true);
|
|
if (that.animating) {
|
|
that.aniTime = nextFrame(animate);
|
|
}
|
|
};
|
|
animate();
|
|
},
|
|
_transitionTime: function (time) {
|
|
time += "ms";
|
|
this.scroller.style[transitionDuration] = time;
|
|
if (this.hScrollbar) {
|
|
this.hScrollbarIndicator.style[transitionDuration] = time;
|
|
}
|
|
if (this.vScrollbar) {
|
|
this.vScrollbarIndicator.style[transitionDuration] = time;
|
|
}
|
|
},
|
|
_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;
|
|
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: m.round(newTime)
|
|
};
|
|
},
|
|
_offset: function (el) {
|
|
var left = -el.offsetLeft,
|
|
top = -el.offsetTop;
|
|
while (el = el.offsetParent) {
|
|
left -= el.offsetLeft;
|
|
top -= el.offsetTop;
|
|
}
|
|
if (el != this.wrapper) {
|
|
left *= this.scale;
|
|
top *= this.scale;
|
|
}
|
|
return {
|
|
left: left,
|
|
top: top
|
|
};
|
|
},
|
|
_snap: function (x, y) {
|
|
var that = this,
|
|
i, l, page, time, sizeX, sizeY;
|
|
page = that.pagesX.length - 1;
|
|
for (i = 0, l = that.pagesX.length; i < l; i++) {
|
|
if (x >= that.pagesX[i]) {
|
|
page = i;
|
|
break;
|
|
}
|
|
}
|
|
if (page == that.currPageX && page > 0 && that.dirX < 0) {
|
|
page--;
|
|
}
|
|
x = that.pagesX[page];
|
|
sizeX = m.abs(x - that.pagesX[that.currPageX]);
|
|
sizeX = sizeX ? m.abs(that.x - x) / sizeX * 500 : 0;
|
|
that.currPageX = page;
|
|
page = that.pagesY.length - 1;
|
|
for (i = 0; i < page; i++) {
|
|
if (y >= that.pagesY[i]) {
|
|
page = i;
|
|
break;
|
|
}
|
|
}
|
|
if (page == that.currPageY && page > 0 && that.dirY < 0) {
|
|
page--;
|
|
}
|
|
y = that.pagesY[page];
|
|
sizeY = m.abs(y - that.pagesY[that.currPageY]);
|
|
sizeY = sizeY ? m.abs(that.y - y) / sizeY * 500 : 0;
|
|
that.currPageY = page;
|
|
time = m.round(m.max(sizeX, sizeY)) || 200;
|
|
return {
|
|
x: x,
|
|
y: y,
|
|
time: time
|
|
};
|
|
},
|
|
_bind: function (type, el, bubble) {
|
|
(el || this.scroller).addEventListener(type, this, !!bubble);
|
|
},
|
|
_unbind: function (type, el, bubble) {
|
|
(el || this.scroller).removeEventListener(type, this, !!bubble);
|
|
},
|
|
destroy: function () {
|
|
var that = this;
|
|
that.scroller.style[transform] = "";
|
|
that.hScrollbar = false;
|
|
that.vScrollbar = false;
|
|
that._scrollbar("h");
|
|
that._scrollbar("v");
|
|
if (that.options.useTransition) {
|
|
that._unbind(TRNEND_EV);
|
|
}
|
|
if (that.options.onDestroy) {
|
|
that.options.onDestroy.call(that);
|
|
}
|
|
},
|
|
_changeMaxes: function () {
|
|
var that = this;
|
|
var _elem = that.api.ReaderModeDiv;
|
|
that.scrollerW = m.round(_elem.offsetWidth);
|
|
that.scrollerH = m.round(_elem.offsetHeight + that.minScrollY);
|
|
that.maxScrollX = that.wrapperW - that.scrollerW;
|
|
that.maxScrollY = that.wrapperH - that.scrollerH + that.minScrollY;
|
|
that._scrollbar("h");
|
|
that._scrollbar("v");
|
|
},
|
|
refresh: function (bIsNoReaderAttack) {
|
|
var that = this,
|
|
offset, i, l, els, pos = 0,
|
|
page = 0;
|
|
if (that.scale < that.options.zoomMin) {
|
|
that.scale = that.options.zoomMin;
|
|
}
|
|
that.wrapperW = ((that.api.m_oEditor.HtmlElement.width) || 1) >> 0;
|
|
that.wrapperH = ((that.api.m_oEditor.HtmlElement.height) || 1) >> 0;
|
|
that.minScrollY = 0;
|
|
that.scrollerW = that.api.m_dDocumentWidth;
|
|
that.scrollerH = that.api.m_dDocumentHeight;
|
|
var _oldMaxX = that.maxScrollX;
|
|
var _oldMaxY = that.maxScrollY;
|
|
var _oldX = that.x;
|
|
var _oldY = that.y;
|
|
that.maxScrollX = -that.api.m_dScrollX_max;
|
|
that.maxScrollY = -that.api.m_dScrollY_max;
|
|
that.x = -that.api.m_dScrollX;
|
|
that.y = -that.api.m_dScrollY;
|
|
if (that.api.ReaderModeDiv != null && undefined === bIsNoReaderAttack) {
|
|
var _elem = that.api.ReaderModeDiv;
|
|
that.scrollerW = m.round(_elem.offsetWidth);
|
|
that.scrollerH = m.round(_elem.offsetHeight + that.minScrollY);
|
|
that.maxScrollX = that.wrapperW - that.scrollerW;
|
|
that.maxScrollY = that.wrapperH - that.scrollerH + that.minScrollY;
|
|
that.x = 0;
|
|
that.y = 0;
|
|
if (_oldMaxX < 0) {
|
|
that.x = (_oldX * that.maxScrollX / _oldMaxX) >> 0;
|
|
if (that.x > 0) {
|
|
that.x = 0;
|
|
}
|
|
if (that.x < that.maxScrollX) {
|
|
that.x = that.maxScrollX;
|
|
}
|
|
}
|
|
if (_oldMaxY < 0) {
|
|
that.y = (_oldY * that.maxScrollY / _oldMaxY) >> 0;
|
|
if (that.y > 0) {
|
|
that.y = 0;
|
|
}
|
|
if (that.y < that.maxScrollY) {
|
|
that.y = that.maxScrollY;
|
|
}
|
|
}
|
|
}
|
|
that.dirX = 0;
|
|
that.dirY = 0;
|
|
if (that.options.onRefresh) {
|
|
that.options.onRefresh.call(that);
|
|
}
|
|
that.hScroll = that.options.hScroll && that.maxScrollX < 0;
|
|
that.vScroll = that.options.vScroll && (!that.options.bounceLock && !that.hScroll || that.scrollerH > that.wrapperH);
|
|
that.hScrollbar = that.hScroll && that.options.hScrollbar;
|
|
that.vScrollbar = that.vScroll && that.options.vScrollbar && that.scrollerH > that.wrapperH;
|
|
offset = that._offset(that.wrapper);
|
|
that.wrapperOffsetLeft = -offset.left;
|
|
that.wrapperOffsetTop = -offset.top;
|
|
if (typeof that.options.snap == "string") {
|
|
that.pagesX = [];
|
|
that.pagesY = [];
|
|
els = that.scroller.querySelectorAll(that.options.snap);
|
|
for (i = 0, l = els.length; i < l; i++) {
|
|
pos = that._offset(els[i]);
|
|
pos.left += that.wrapperOffsetLeft;
|
|
pos.top += that.wrapperOffsetTop;
|
|
that.pagesX[i] = pos.left < that.maxScrollX ? that.maxScrollX : pos.left * that.scale;
|
|
that.pagesY[i] = pos.top < that.maxScrollY ? that.maxScrollY : pos.top * that.scale;
|
|
}
|
|
} else {
|
|
if (that.options.snap) {
|
|
that.pagesX = [];
|
|
while (pos >= that.maxScrollX) {
|
|
that.pagesX[page] = pos;
|
|
pos = pos - that.wrapperW;
|
|
page++;
|
|
}
|
|
if (that.maxScrollX % that.wrapperW) {
|
|
that.pagesX[that.pagesX.length] = that.maxScrollX - that.pagesX[that.pagesX.length - 1] + that.pagesX[that.pagesX.length - 1];
|
|
}
|
|
pos = 0;
|
|
page = 0;
|
|
that.pagesY = [];
|
|
while (pos >= that.maxScrollY) {
|
|
that.pagesY[page] = pos;
|
|
pos = pos - that.wrapperH;
|
|
page++;
|
|
}
|
|
if (that.maxScrollY % that.wrapperH) {
|
|
that.pagesY[that.pagesY.length] = that.maxScrollY - that.pagesY[that.pagesY.length - 1] + that.pagesY[that.pagesY.length - 1];
|
|
}
|
|
}
|
|
}
|
|
that._scrollbar("h");
|
|
that._scrollbar("v");
|
|
if (!that.zoomed && that.scroller) {
|
|
that.scroller.style[transitionDuration] = "0";
|
|
that._resetPos(400);
|
|
}
|
|
},
|
|
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 > that.minScrollY ? that.minScrollY : 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);
|
|
},
|
|
scrollToPage: function (pageX, pageY, time) {
|
|
var that = this,
|
|
x, y;
|
|
time = time === undefined ? 400 : time;
|
|
if (that.options.onScrollStart) {
|
|
that.options.onScrollStart.call(that);
|
|
}
|
|
if (that.options.snap) {
|
|
pageX = pageX == "next" ? that.currPageX + 1 : pageX == "prev" ? that.currPageX - 1 : pageX;
|
|
pageY = pageY == "next" ? that.currPageY + 1 : pageY == "prev" ? that.currPageY - 1 : pageY;
|
|
pageX = pageX < 0 ? 0 : pageX > that.pagesX.length - 1 ? that.pagesX.length - 1 : pageX;
|
|
pageY = pageY < 0 ? 0 : pageY > that.pagesY.length - 1 ? that.pagesY.length - 1 : pageY;
|
|
that.currPageX = pageX;
|
|
that.currPageY = pageY;
|
|
x = that.pagesX[pageX];
|
|
y = that.pagesY[pageY];
|
|
} else {
|
|
x = -that.wrapperW * pageX;
|
|
y = -that.wrapperH * pageY;
|
|
if (x < that.maxScrollX) {
|
|
x = that.maxScrollX;
|
|
}
|
|
if (y < that.maxScrollY) {
|
|
y = that.maxScrollY;
|
|
}
|
|
}
|
|
that.scrollTo(x, y, time);
|
|
},
|
|
disable: function () {
|
|
this.stop();
|
|
this._resetPos(0);
|
|
this.enabled = false;
|
|
this._unbind(CANCEL_EV, window);
|
|
},
|
|
enable: function () {
|
|
this.enabled = true;
|
|
},
|
|
stop: function () {
|
|
if (this.options.useTransition) {
|
|
this._unbind(TRNEND_EV);
|
|
} else {
|
|
cancelFrame(this.aniTime);
|
|
}
|
|
this.steps = [];
|
|
this.moved = false;
|
|
this.animating = false;
|
|
},
|
|
zoom: function (x, y, scale, time) {
|
|
var that = this,
|
|
relScale = scale / that.scale;
|
|
if (!that.options.useTransform) {
|
|
return;
|
|
}
|
|
that.zoomed = true;
|
|
time = time === undefined ? 200 : time;
|
|
x = x - that.wrapperOffsetLeft - that.x;
|
|
y = y - that.wrapperOffsetTop - that.y;
|
|
that.x = x - x * relScale + that.x;
|
|
that.y = y - y * relScale + that.y;
|
|
that.scale = scale;
|
|
that.refresh();
|
|
that.x = that.x > 0 ? 0 : that.x < that.maxScrollX ? that.maxScrollX : that.x;
|
|
that.y = that.y > that.minScrollY ? that.minScrollY : that.y < that.maxScrollY ? that.maxScrollY : that.y;
|
|
that.scroller.style[transitionDuration] = time + "ms";
|
|
that.scroller.style[transform] = "translate(" + that.x + "px," + that.y + "px) scale(" + scale + ")" + translateZ;
|
|
that.zoomed = false;
|
|
},
|
|
isReady: function () {
|
|
return !this.moved && !this.zoomed && !this.animating;
|
|
}
|
|
};
|
|
function prefixStyle(style) {
|
|
if (vendor === "") {
|
|
return style;
|
|
}
|
|
style = style.charAt(0).toUpperCase() + style.substr(1);
|
|
return vendor + style;
|
|
}
|
|
dummyStyle = null;
|
|
window.CTouchScroll = CTouchScroll;
|
|
window.asc_sdk_transform = prefixStyle("transform");
|
|
window.asc_sdk_transitionProperty = prefixStyle("transitionProperty");
|
|
window.asc_sdk_transitionDuration = prefixStyle("transitionDuration");
|
|
window.asc_sdk_transformOrigin = prefixStyle("transformOrigin");
|
|
window.asc_sdk_transitionTimingFunction = prefixStyle("transitionTimingFunction");
|
|
window.asc_sdk_transitionDelay = prefixStyle("transitionDelay");
|
|
window.asc_sdk_cssVendor = cssVendor;
|
|
})(window, document); |