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How to use zoom method in robotframework-appiumlibrary

Best Python code snippet using robotframework-appiumlibrary_python

zoom-test.js

Source:zoom-test.js

...32    this.zoomDestroy();33};34ZoomTest.prototype.zoomDestroy = function() {35    if(this.zoomElement.data('zoom')) {36        this.zoomElement.zoom('destroy');37    }38};39ZoomTest.prototype.zoomCreate = function(options, element) {40    return (element || this.zoomElement).zoom(options || {} ).data('zoom');41};42ZoomTest.prototype.testInit = function() {43    this.zoomElement.zoom();44    assertTrue(this.zoomElement.is(':mage-zoom'));45};46ZoomTest.prototype.testCreate = function() {47    var zoomInstance = this.zoomCreate(),48        _setZoomData = jsunit.stub(zoomInstance, '_setZoomData'),49        _render = jsunit.stub(zoomInstance, '_render'),50        _bind = jsunit.stub(zoomInstance, '_bind'),51        _hide = jsunit.stub(zoomInstance, '_hide'),52        _largeImageLoaded = jsunit.stub(zoomInstance, '_largeImageLoaded');53    zoomInstance.largeImage = [{54        complete: false55    }];56    zoomInstance._create();57    assertTrue(_setZoomData.callCount === 1);...

mui.zoom.js

Source:mui.zoom.js

1(function($, window) {2	var CLASS_ZOOM = $.className('zoom');3	var CLASS_ZOOM_SCROLLER = $.className('zoom-scroller');4	var SELECTOR_ZOOM = '.' + CLASS_ZOOM;5	var SELECTOR_ZOOM_SCROLLER = '.' + CLASS_ZOOM_SCROLLER;6	var EVENT_PINCH_START = 'pinchstart';7	var EVENT_PINCH = 'pinch';8	var EVENT_PINCH_END = 'pinchend';9	if ('ongesturestart' in window) {10		EVENT_PINCH_START = 'gesturestart';11		EVENT_PINCH = 'gesturechange';12		EVENT_PINCH_END = 'gestureend';13	}14	$.Zoom = function(element, options) {15		var zoom = this;16		zoom.options = $.extend($.Zoom.defaults, options);17		zoom.wrapper = zoom.element = element;18		zoom.scroller = element.querySelector(SELECTOR_ZOOM_SCROLLER);19		zoom.scrollerStyle = zoom.scroller && zoom.scroller.style;20		zoom.zoomer = element.querySelector(SELECTOR_ZOOM);21		zoom.zoomerStyle = zoom.zoomer && zoom.zoomer.style;22		zoom.init = function() {23			//èªå¨å¯ç¨24			$.options.gestureConfig.pinch = true;25			$.options.gestureConfig.doubletap = true;26			zoom.initEvents();27		};28		zoom.initEvents = function(detach) {29			var action = detach ? 'removeEventListener' : 'addEventListener';30			var target = zoom.scroller;31			target[action](EVENT_PINCH_START, zoom.onPinchstart);32			target[action](EVENT_PINCH, zoom.onPinch);33			target[action](EVENT_PINCH_END, zoom.onPinchend);34			target[action]($.EVENT_START, zoom.onTouchstart);35			target[action]($.EVENT_MOVE, zoom.onTouchMove);36			target[action]($.EVENT_CANCEL, zoom.onTouchEnd);37			target[action]($.EVENT_END, zoom.onTouchEnd);38			target[action]('drag', zoom.dragEvent);39			target[action]('doubletap', zoom.doubleTapEvent);40		};41		zoom.dragEvent = function(e) {42			if (imageIsMoved || isGesturing) {43				e.stopPropagation();44			}45		};46		zoom.doubleTapEvent = function(e) {47			zoom.toggleZoom(e.detail.center);48		};49		zoom.transition = function(style, time) {50			time = time || 0;51			style['webkitTransitionDuration'] = time + 'ms';52			return zoom;53		};54		zoom.translate = function(style, x, y) {55			x = x || 0;56			y = y || 0;57			style['webkitTransform'] = 'translate3d(' + x + 'px,' + y + 'px,0px)';58			return zoom;59		};60		zoom.scale = function(style, scale) {61			scale = scale || 1;62			style['webkitTransform'] = 'translate3d(0,0,0) scale(' + scale + ')';63			return zoom;64		};65		zoom.scrollerTransition = function(time) {66			return zoom.transition(zoom.scrollerStyle, time);67		};68		zoom.scrollerTransform = function(x, y) {69			return zoom.translate(zoom.scrollerStyle, x, y);70		};71		zoom.zoomerTransition = function(time) {72			return zoom.transition(zoom.zoomerStyle, time);73		};74		zoom.zoomerTransform = function(scale) {75			return zoom.scale(zoom.zoomerStyle, scale);76		};77		// Gestures78		var scale = 1,79			currentScale = 1,80			isScaling = false,81			isGesturing = false;82		zoom.onPinchstart = function(e) {83			isGesturing = true;84		};85		zoom.onPinch = function(e) {86			if (!isScaling) {87				zoom.zoomerTransition(0);88				isScaling = true;89			}90			scale = (e.detail ? e.detail.scale : e.scale) * currentScale;91			if (scale > zoom.options.maxZoom) {92				scale = zoom.options.maxZoom - 1 + Math.pow((scale - zoom.options.maxZoom + 1), 0.5);93			}94			if (scale < zoom.options.minZoom) {95				scale = zoom.options.minZoom + 1 - Math.pow((zoom.options.minZoom - scale + 1), 0.5);96			}97			zoom.zoomerTransform(scale);98		};99		zoom.onPinchend = function(e) {100			scale = Math.max(Math.min(scale, zoom.options.maxZoom), zoom.options.minZoom);101			zoom.zoomerTransition(zoom.options.speed).zoomerTransform(scale);102			currentScale = scale;103			isScaling = false;104		};105		zoom.setZoom = function(newScale) {106			scale = currentScale = newScale;107			zoom.scrollerTransition(zoom.options.speed).scrollerTransform(0, 0);108			zoom.zoomerTransition(zoom.options.speed).zoomerTransform(scale);109		};110		zoom.toggleZoom = function(position, speed) {111			if (typeof position === 'number') {112				speed = position;113				position = undefined;114			}115			speed = typeof speed === 'undefined' ? zoom.options.speed : speed;116			if (scale && scale !== 1) {117				scale = currentScale = 1;118				zoom.scrollerTransition(speed).scrollerTransform(0, 0);119			} else {120				scale = currentScale = zoom.options.maxZoom;121				if (position) {122					var offset = $.offset(zoom.zoomer);123					var top = offset.top;124					var left = offset.left;125					var offsetX = (position.x - left) * scale;126					var offsetY = (position.y - top) * scale;127					this._cal();128					if (offsetX >= imageMaxX && offsetX <= (imageMaxX + wrapperWidth)) { //center129						offsetX = imageMaxX - offsetX + wrapperWidth / 2;130					} else if (offsetX < imageMaxX) { //left131						offsetX = imageMaxX - offsetX + wrapperWidth / 2;132					} else if (offsetX > (imageMaxX + wrapperWidth)) { //right133						offsetX = imageMaxX + wrapperWidth - offsetX - wrapperWidth / 2;134					}135					if (offsetY >= imageMaxY && offsetY <= (imageMaxY + wrapperHeight)) { //middle136						offsetY = imageMaxY - offsetY + wrapperHeight / 2;137					} else if (offsetY < imageMaxY) { //top138						offsetY = imageMaxY - offsetY + wrapperHeight / 2;139					} else if (offsetY > (imageMaxY + wrapperHeight)) { //bottom140						offsetY = imageMaxY + wrapperHeight - offsetY - wrapperHeight / 2;141					}142					offsetX = Math.min(Math.max(offsetX, imageMinX), imageMaxX);143					offsetY = Math.min(Math.max(offsetY, imageMinY), imageMaxY);144					zoom.scrollerTransition(speed).scrollerTransform(offsetX, offsetY);145				} else {146					zoom.scrollerTransition(speed).scrollerTransform(0, 0);147				}148			}149			zoom.zoomerTransition(speed).zoomerTransform(scale);150		};151		zoom._cal = function() {152			wrapperWidth = zoom.wrapper.offsetWidth;153			wrapperHeight = zoom.wrapper.offsetHeight;154			imageWidth = zoom.zoomer.offsetWidth;155			imageHeight = zoom.zoomer.offsetHeight;156			var scaledWidth = imageWidth * scale;157			var scaledHeight = imageHeight * scale;158			imageMinX = Math.min((wrapperWidth / 2 - scaledWidth / 2), 0);159			imageMaxX = -imageMinX;160			imageMinY = Math.min((wrapperHeight / 2 - scaledHeight / 2), 0);161			imageMaxY = -imageMinY;162		};163		var wrapperWidth, wrapperHeight, imageIsTouched, imageIsMoved, imageCurrentX, imageCurrentY, imageMinX, imageMinY, imageMaxX, imageMaxY, imageWidth, imageHeight, imageTouchesStart = {},164			imageTouchesCurrent = {},165			imageStartX, imageStartY, velocityPrevPositionX, velocityPrevTime, velocityX, velocityPrevPositionY, velocityY;166		zoom.onTouchstart = function(e) {167			e.preventDefault();168			imageIsTouched = true;169			imageTouchesStart.x = e.type === $.EVENT_START ? e.targetTouches[0].pageX : e.pageX;170			imageTouchesStart.y = e.type === $.EVENT_START ? e.targetTouches[0].pageY : e.pageY;171		};172		zoom.onTouchMove = function(e) {173			e.preventDefault();174			if (!imageIsTouched) return;175			if (!imageIsMoved) {176				wrapperWidth = zoom.wrapper.offsetWidth;177				wrapperHeight = zoom.wrapper.offsetHeight;178				imageWidth = zoom.zoomer.offsetWidth;179				imageHeight = zoom.zoomer.offsetHeight;180				var translate = $.parseTranslateMatrix($.getStyles(zoom.scroller, 'webkitTransform'));181				imageStartX = translate.x || 0;182				imageStartY = translate.y || 0;183				zoom.scrollerTransition(0);184			}185			var scaledWidth = imageWidth * scale;186			var scaledHeight = imageHeight * scale;187			if (scaledWidth < wrapperWidth && scaledHeight < wrapperHeight) return;188			imageMinX = Math.min((wrapperWidth / 2 - scaledWidth / 2), 0);189			imageMaxX = -imageMinX;190			imageMinY = Math.min((wrapperHeight / 2 - scaledHeight / 2), 0);191			imageMaxY = -imageMinY;192			imageTouchesCurrent.x = e.type === $.EVENT_MOVE ? e.targetTouches[0].pageX : e.pageX;193			imageTouchesCurrent.y = e.type === $.EVENT_MOVE ? e.targetTouches[0].pageY : e.pageY;194			if (!imageIsMoved && !isScaling) {195				//				if (Math.abs(imageTouchesCurrent.y - imageTouchesStart.y) < Math.abs(imageTouchesCurrent.x - imageTouchesStart.x)) {196				//TODO æ¤å¤éè¦ä¼åï¼å½éå°é¿å¾ï¼éè¦ä¸ä¸æ»å¨æ¶ï¼ä¸åå¤æä¼å¯¼è´æ»å¨ä¸æµç197				if (198					(Math.floor(imageMinX) === Math.floor(imageStartX) && imageTouchesCurrent.x < imageTouchesStart.x) ||199					(Math.floor(imageMaxX) === Math.floor(imageStartX) && imageTouchesCurrent.x > imageTouchesStart.x)200				) {201					imageIsTouched = false;202					return;203				}204				//				}205			}206			imageIsMoved = true;207			imageCurrentX = imageTouchesCurrent.x - imageTouchesStart.x + imageStartX;208			imageCurrentY = imageTouchesCurrent.y - imageTouchesStart.y + imageStartY;209			if (imageCurrentX < imageMinX) {210				imageCurrentX = imageMinX + 1 - Math.pow((imageMinX - imageCurrentX + 1), 0.8);211			}212			if (imageCurrentX > imageMaxX) {213				imageCurrentX = imageMaxX - 1 + Math.pow((imageCurrentX - imageMaxX + 1), 0.8);214			}215			if (imageCurrentY < imageMinY) {216				imageCurrentY = imageMinY + 1 - Math.pow((imageMinY - imageCurrentY + 1), 0.8);217			}218			if (imageCurrentY > imageMaxY) {219				imageCurrentY = imageMaxY - 1 + Math.pow((imageCurrentY - imageMaxY + 1), 0.8);220			}221			//Velocity222			if (!velocityPrevPositionX) velocityPrevPositionX = imageTouchesCurrent.x;223			if (!velocityPrevPositionY) velocityPrevPositionY = imageTouchesCurrent.y;224			if (!velocityPrevTime) velocityPrevTime = $.now();225			velocityX = (imageTouchesCurrent.x - velocityPrevPositionX) / ($.now() - velocityPrevTime) / 2;226			velocityY = (imageTouchesCurrent.y - velocityPrevPositionY) / ($.now() - velocityPrevTime) / 2;227			if (Math.abs(imageTouchesCurrent.x - velocityPrevPositionX) < 2) velocityX = 0;228			if (Math.abs(imageTouchesCurrent.y - velocityPrevPositionY) < 2) velocityY = 0;229			velocityPrevPositionX = imageTouchesCurrent.x;230			velocityPrevPositionY = imageTouchesCurrent.y;231			velocityPrevTime = $.now();232			zoom.scrollerTransform(imageCurrentX, imageCurrentY);233		};234		zoom.onTouchEnd = function(e) {235			if (!e.touches.length) {236				isGesturing = false;237			}238			if (!imageIsTouched || !imageIsMoved) {239				imageIsTouched = false;240				imageIsMoved = false;241				return;242			}243			imageIsTouched = false;244			imageIsMoved = false;245			var momentumDurationX = 300;246			var momentumDurationY = 300;247			var momentumDistanceX = velocityX * momentumDurationX;248			var newPositionX = imageCurrentX + momentumDistanceX;249			var momentumDistanceY = velocityY * momentumDurationY;250			var newPositionY = imageCurrentY + momentumDistanceY;251			if (velocityX !== 0) momentumDurationX = Math.abs((newPositionX - imageCurrentX) / velocityX);252			if (velocityY !== 0) momentumDurationY = Math.abs((newPositionY - imageCurrentY) / velocityY);253			var momentumDuration = Math.max(momentumDurationX, momentumDurationY);254			imageCurrentX = newPositionX;255			imageCurrentY = newPositionY;256			var scaledWidth = imageWidth * scale;257			var scaledHeight = imageHeight * scale;258			imageMinX = Math.min((wrapperWidth / 2 - scaledWidth / 2), 0);259			imageMaxX = -imageMinX;260			imageMinY = Math.min((wrapperHeight / 2 - scaledHeight / 2), 0);261			imageMaxY = -imageMinY;262			imageCurrentX = Math.max(Math.min(imageCurrentX, imageMaxX), imageMinX);263			imageCurrentY = Math.max(Math.min(imageCurrentY, imageMaxY), imageMinY);264			zoom.scrollerTransition(momentumDuration).scrollerTransform(imageCurrentX, imageCurrentY);265		};266		zoom.destroy = function() {267			zoom.initEvents(true); //detach268			delete $.data[zoom.wrapper.getAttribute('data-zoomer')];269			zoom.wrapper.setAttribute('data-zoomer', '');270		}271		zoom.init();272		return zoom;273	};274	$.Zoom.defaults = {275		speed: 300,276		maxZoom: 3,277		minZoom: 1,278	};279	$.fn.zoom = function(options) {280		var zoomApis = [];281		this.each(function() {282			var zoomApi = null;283			var self = this;284			var id = self.getAttribute('data-zoomer');285			if (!id) {286				id = ++$.uuid;287				$.data[id] = zoomApi = new $.Zoom(self, options);288				self.setAttribute('data-zoomer', id);289			} else {290				zoomApi = $.data[id];291			}292			zoomApis.push(zoomApi);293		});294		return zoomApis.length === 1 ? zoomApis[0] : zoomApis;295	};...

c3ext.js

Source:c3ext.js

1ï»¿var c3ext = {};2c3ext.generate = function (options) {3    if (options.zoom2 != null) {4        zoom2_reducers = options.zoom2.reducers || {};5        zoom2_enabled = options.zoom2.enabled;6        _zoom2_factor = options.zoom2.factor || 1;7        _zoom2_maxItems = options.zoom2.maxItems;8    }9    if (!zoom2_enabled) {10        return c3.generate(options);11    }12    var originalData = Q.copy(options.data);13    var zoom2_reducers;14    var zoom2_enabled;15    var _zoom2_maxItems;16    if (_zoom2_maxItems == null) {17        var el = d3.select(options.bindto)[0][0];18        if (el != null) {19            var availWidth = el.clientWidth;20            var pointSize = 20;21            _zoom2_maxItems = Math.ceil(availWidth / pointSize);22        }23        if (_zoom2_maxItems == null || _zoom2_maxItems < 10) {24            _zoom2_maxItems = 10;25        }26    }27    function onZoomChanged(e) {28        refresh();29    }30    var zoom2 = c3ext.ZoomBehavior({ changed: onZoomChanged, bindto: options.bindto });31    zoom2.enhance = function () {32        _zoom2_maxItems *= 2;33        var totalItems = zoom2.getZoom().totalItems;34        if (_zoom2_maxItems > totalItems)35            _zoom2_maxItems = totalItems;36        refresh();37    }38    zoom2.dehance = function () {39        _zoom2_maxItems = Math.ceil(_zoom2_maxItems / 2) + 1;40        refresh();41    }42    zoom2.maxItems = function () { return _zoom2_maxItems; };43    function zoomAndReduceData(list, zoomRange, func, maxItems) {44        //var maxItems = 10;//Math.ceil(10 * zoomFactor);45        var list2 = list.slice(zoomRange[0], zoomRange[1]);46        var chunkSize = 1;47        var list3 = list2;48        if (list3.length > maxItems) {49            var chunkSize = Math.ceil(list2.length / maxItems);50            list3 = list3.splitIntoChunksOf(chunkSize).map(func);51        }52        //console.log("x" + getCurrentZoomLevel() + ", maxItems=" + maxItems + " chunkSize=" + chunkSize + " totalBefore=" + list2.length + ", totalAfter=" + list3.length);53        return list3;54    }55    function first(t) { return t[0]; }56    var getDataForZoom = function (data) {57        if (data.columns == null || data.columns.length == 0)58            return;59        var zoomInfo = zoom2.getZoom();60        if (zoomInfo.totalItems != data.columns[0].length - 1) {61            zoom2.setOptions({ totalItems: data.columns[0].length - 1 });62            zoomInfo = zoom2.getZoom();63        }64        data.columns = originalData.columns.map(function (column) {65            var name = column[0];66            var reducer = zoom2_reducers[name] || first; //by default take the first67            var values = column.slice(1);68            var newValues = zoomAndReduceData(values, zoomInfo.currentZoom, reducer, _zoom2_maxItems);69            return [name].concat(newValues);70        });71        return data;72    };73    getDataForZoom(options.data);74    var chart = c3.generate(options);75    var _chart_load_org = chart.load.bind(chart);76    chart.zoom2 = zoom2;77    chart.load = function (data) {78        if (data.unload) {79            unload(data.unload);80            delete data.unload;81        }82        Q.copy(data, originalData);83        refresh();84    }85    chart.unload = function (names) {86        unload(names);87        refresh();88    }89    function unload(names) {90        originalData.columns.removeAll(function (t) { names.contains(t); });91    }92    function refresh() {93        var data = Q.copy(originalData)94        getDataForZoom(data);95        _chart_load_org(data);96    };97    return chart;98}99c3ext.ZoomBehavior = function (options) {100    var zoom = { __type: "ZoomBehavior" };101    var _zoom2_factor;102    var _left;103    var totalItems;104    var currentZoom;105    var bindto = options.bindto;106    var _zoomChanged = options.changed || function () { };107    var element;108    var mousewheelTimer;109    var deltaY = 0;110    var leftRatio = 0;111    zoom.setOptions = function (options) {112        if (options == null)113            options = {};114        _zoom2_factor = options.factor || 1;115        _left = 0;116        totalItems = options.totalItems || 0;117        currentZoom = [0, totalItems];118        _zoomChanged = options.changed || _zoomChanged;119    }120    zoom.setOptions(options);121    function verifyZoom(newZoom) {122        //newZoom.sort();123        if (newZoom[1] > totalItems) {124            var diff = newZoom[1] - totalItems;125            newZoom[0] -= diff;126            newZoom[1] -= diff;127        }128        if (newZoom[0] < 0) {129            var diff = newZoom[0] * -1;130            newZoom[0] += diff;131            newZoom[1] += diff;132        }133        if (newZoom[1] > totalItems)134            newZoom[1] = totalItems;135        if (newZoom[0] < 0)136            newZoom[0] = 0;137    }138    function zoomAndPan(zoomFactor, left) {139        var itemsToShow = Math.ceil(totalItems / zoomFactor);140        var newZoom = [left, left + itemsToShow];141        verifyZoom(newZoom);142        currentZoom = newZoom;143        onZoomChanged();144    }145    function onZoomChanged() {146        if (_zoomChanged != null)147            _zoomChanged(zoom.getZoom());148    }149    function applyZoomAndPan() {150        zoomAndPan(_zoom2_factor, _left);151    }152    function getItemsToShow() {153        var itemsToShow = Math.ceil(totalItems / _zoom2_factor);154        return itemsToShow;155    }156    zoom.getZoom = function () {157        return { totalItems: totalItems, currentZoom: currentZoom.slice() };158    }159    zoom.factor = function (factor, skipDraw) {160        if (arguments.length == 0)161            return _zoom2_factor;162        _zoom2_factor = factor;163        if (_zoom2_factor < 1)164            _zoom2_factor = 1;165        if (skipDraw)166            return;167        applyZoomAndPan();168    }169    zoom.left = function (left, skipDraw) {170        if (arguments.length == 0)171            return _left;172        _left = left;173        if (_left < 0)174            _left = 0;175        var pageSize = getItemsToShow();176        //_left += pageSize;177        if (_left + pageSize > totalItems)178            _left = totalItems - pageSize;179        console.log({ left: _left, pageSize: pageSize });180        if (skipDraw)181            return;182        applyZoomAndPan();183    }184    zoom.zoomAndPanByRatio = function (zoomRatio, panRatio) {185        var pageSize = getItemsToShow();186        var leftOffset = Math.round(pageSize * panRatio);187        var mouseLeft = _left + leftOffset;188        zoom.factor(zoom.factor() * zoomRatio, true);189        var finalLeft = mouseLeft;190        if (zoomRatio != 1) {191            var pageSize2 = getItemsToShow();192            var leftOffset2 = Math.round(pageSize2 * panRatio);193            finalLeft = mouseLeft - leftOffset2;194        }195        zoom.left(finalLeft, true);196        applyZoomAndPan();197    }198    zoom.zoomIn = function () {199        zoom.zoomAndPanByRatio(2, 0);200    }201    zoom.zoomOut = function () {202        zoom.zoomAndPanByRatio(0.5, 0);203    }204    zoom.panLeft = function () {205        zoom.zoomAndPanByRatio(1, -1);206    }207    zoom.panRight = function () {208        zoom.zoomAndPanByRatio(1, 1);209    }210    zoom.reset = function () {211        _left = 0;212        _zoom2_factor = 1;213        applyZoomAndPan();214    }215    function doZoom() {216        if (deltaY != 0) {217            var maxDelta = 10;218            var multiply = (maxDelta + deltaY) / maxDelta;219            //var factor = chart.zoom2.factor()*multiply;220            //factor= Math.ceil(factor*100) / 100;221            console.log({ deltaY: deltaY, multiply: multiply });222            zoom.zoomAndPanByRatio(multiply, leftRatio);//0.5);//leftRatio);223            deltaY = 0;224        }225    }226    function element_mousewheel(e) {227        deltaY += e.deltaY;228        leftRatio = (e.offsetX - 70) / (e.currentTarget.offsetWidth - 70);229        //console.log({ "e.offsetX": e.offsetX, "e.currentTarget.offsetWidth": e.currentTarget.offsetWidth, leftRatio: leftRatio });230        mousewheelTimer.set(150);231        e.preventDefault();232    }233    if (bindto != null) {234        element = $(options.bindto);235        if (element.mousewheel) {236            mousewheelTimer = new Timer(doZoom);237            element.mousewheel(element_mousewheel);238        }239    }240    return zoom;241}242if (typeof (Q) == "undefined") {243    var Q = function () {244    };245    Q.copy = function (src, target, options, depth) {246        ///<summary>Copies an object into a target object, recursively cloning any object or array in the way, overwrite=true will overwrite a primitive field value even if exists</summary>247        ///<param name="src" />248        ///<param name="target" />249        ///<param name="options" type="Object">{ overwrite:false }</param>250        ///<returns type="Object">The copied object</returns>251        if (depth == null)252            depth = 0;253        if (depth == 100) {254            console.warn("Q.copy is in depth of 100 - possible circular reference")255        }256        options = options || { overwrite: false };257        if (src == target || src == null)258            return target;259        if (typeof (src) != "object") {260            if (options.overwrite || target == null)261                return src;262            return target;263        }264        if (typeof (src.clone) == "function") {265            if (options.overwrite || target == null)266                return src.clone();267            return target;268        }269        if (target == null) {270            if (src instanceof Array)271                target = [];272            else273                target = {};274        }275        if (src instanceof Array) {276            for (var i = 0; i < src.length; i++) {277                var item = src[i];278                var item2 = target[i];279                item2 = Q.copy(item, item2, options, depth + 1);280                target[i] = item2;281            }282            target.splice(src.length, target.length - src.length);283            return target;284        }285        for (var p in src) {286            var value = src[p];287            var value2 = target[p];288            value2 = Q.copy(value, value2, options, depth + 1);289            target[p] = value2;290        }291        return target;292    }293}294if (typeof (Timer) == "undefined") {295    var Timer = function (action, ms) {296        this.action = action;297        if (ms != null)298            this.set(ms);299    }300    Timer.prototype.set = function (ms) {301        if (ms == null)302            ms = this._ms;303        else304            this._ms = ms;305        this.clear();306        if (ms == null)307            return;308        this.timeout = window.setTimeout(this.onTick.bind(this), ms);309    }310    Timer.prototype.onTick = function () {311        this.clear();312        this.action();313    }314    Timer.prototype.clear = function (ms) {315        if (this.timeout == null)316            return;317        window.clearTimeout(this.timeout);318        this.timeout = null;319    }320}321if (typeof(Array.prototype.splitIntoChunksOf)=="undefined") {322    Array.prototype.splitIntoChunksOf = function (countInEachChunk) {323        var chunks = Math.ceil(this.length / countInEachChunk);324        var list = [];325        for (var i = 0; i < this.length; i += countInEachChunk) {326            list.push(this.slice(i, i + countInEachChunk));327        }328        return list;329    }...

zoom_manager.js

Source:zoom_manager.js

1// Copyright 2015 The Chromium Authors. All rights reserved.2// Use of this source code is governed by a BSD-style license that can be3// found in the LICENSE file.4import {NativeEventTarget as EventTarget} from 'chrome://resources/js/cr/event_target.m.js';5import {BrowserApi} from './browser_api.js';6// Abstract parent of classes that manage updating the browser with zoom changes7// and/or updating the viewer's zoom when the browser zoom changes.8export class ZoomManager {9  /**10   * @param {function():number} getViewportZoom Callback to get the viewport's11   *     current zoom level.12   * @param {number} initialZoom The initial browser zoom level.13   */14  constructor(getViewportZoom, initialZoom) {15    if (this.constructor === ZoomManager) {16      throw new TypeError('Instantiated abstract class: ZoomManager');17    }18    /** @private {number} */19    this.browserZoom_ = initialZoom;20    /** @private {function():number} */21    this.getViewportZoom_ = getViewportZoom;22    /** @private {!EventTarget} */23    this.eventTarget_ = new EventTarget();24  }25  /** @return {!EventTarget} */26  getEventTarget() {27    return this.eventTarget_;28  }29  /**30   * Creates the appropriate kind of zoom manager given the zoom behavior.31   * @param {BrowserApi.ZoomBehavior} zoomBehavior How to manage zoom.32   * @param {function():number} getViewportZoom A function that gets the current33   *     viewport zoom.34   * @param {function(number):Promise} setBrowserZoomFunction A function that35   *     sets the browser zoom to the provided value.36   * @param {number} initialZoom The initial browser zoom level.37   */38  static create(39      zoomBehavior, getViewportZoom, setBrowserZoomFunction, initialZoom) {40    switch (zoomBehavior) {41      case BrowserApi.ZoomBehavior.MANAGE:42        return new ActiveZoomManager(43            getViewportZoom, setBrowserZoomFunction, initialZoom);44      case BrowserApi.ZoomBehavior.PROPAGATE_PARENT:45        return new EmbeddedZoomManager(getViewportZoom, initialZoom);46      default:47        return new InactiveZoomManager(getViewportZoom, initialZoom);48    }49  }50  /**51   * Invoked when a browser-initiated zoom-level change occurs.52   * @param {number} newZoom the zoom level to zoom to.53   */54  onBrowserZoomChange(newZoom) {}55  /** Invoked when an extension-initiated zoom-level change occurs. */56  onPdfZoomChange() {}57  /**58   * Combines the internal pdf zoom and the browser zoom to59   * produce the total zoom level for the viewer.60   * @param {number} internalZoom the zoom level internal to the viewer.61   * @return {number} the total zoom level.62   */63  applyBrowserZoom(internalZoom) {64    return this.browserZoom_ * internalZoom;65  }66  /**67   * Given a zoom level, return the internal zoom level needed to68   * produce that zoom level.69   * @param {number} totalZoom the total zoom level.70   * @return {number} the zoom level internal to the viewer.71   */72  internalZoomComponent(totalZoom) {73    return totalZoom / this.browserZoom_;74  }75  /**76   * Returns whether two numbers are approximately equal.77   * @param {number} a The first number.78   * @param {number} b The second number.79   */80  floatingPointEquals(a, b) {81    const MIN_ZOOM_DELTA = 0.01;82    // If the zoom level is close enough to the current zoom level, don't83    // change it. This avoids us getting into an infinite loop of zoom changes84    // due to floating point error.85    return Math.abs(a - b) <= MIN_ZOOM_DELTA;86  }87}88// Has no control over the browser's zoom and does not respond to browser zoom89// changes.90export class InactiveZoomManager extends ZoomManager {}91// ActiveZoomManager controls the browser's zoom.92class ActiveZoomManager extends ZoomManager {93  /**94   * Constructs a ActiveZoomManager.95   * @param {function():number} getViewportZoom A function that gets the current96   *     viewport zoom level97   * @param {function(number):Promise} setBrowserZoomFunction A function that98   *     sets the browser zoom to the provided value.99   * @param {number} initialZoom The initial browser zoom level.100   */101  constructor(getViewportZoom, setBrowserZoomFunction, initialZoom) {102    super(getViewportZoom, initialZoom);103    /** @private {function(number):Promise} */104    this.setBrowserZoomFunction_ = setBrowserZoomFunction;105    /** @private {?Promise} */106    this.changingBrowserZoom_ = null;107  }108  /**109   * Invoked when a browser-initiated zoom-level change occurs.110   * @param {number} newZoom the zoom level to zoom to.111   */112  onBrowserZoomChange(newZoom) {113    // If we are changing the browser zoom level, ignore any browser zoom level114    // change events. Either, the change occurred before our update and will be115    // overwritten, or the change being reported is the change we are making,116    // which we have already handled.117    if (this.changingBrowserZoom_) {118      return;119    }120    if (this.floatingPointEquals(this.browserZoom_, newZoom)) {121      return;122    }123    this.browserZoom_ = newZoom;124    this.eventTarget_.dispatchEvent(125        new CustomEvent('set-zoom', {detail: newZoom}));126  }127  /**128   * Invoked when an extension-initiated zoom-level change occurs.129   * @override130   */131  onPdfZoomChange() {132    // If we are already changing the browser zoom level in response to a133    // previous extension-initiated zoom-level change, ignore this zoom change.134    // Once the browser zoom level is changed, we check whether the extension's135    // zoom level matches the most recently sent zoom level.136    if (this.changingBrowserZoom_) {137      return;138    }139    const viewportZoom = this.getViewportZoom_();140    if (this.floatingPointEquals(this.browserZoom_, viewportZoom)) {141      return;142    }143    this.changingBrowserZoom_ =144        this.setBrowserZoomFunction_(viewportZoom).then(() => {145          this.browserZoom_ = viewportZoom;146          this.changingBrowserZoom_ = null;147          // The extension's zoom level may have changed while the browser zoom148          // change was in progress. We call back into onPdfZoomChange to ensure149          // the browser zoom is up to date.150          this.onPdfZoomChange();151        });152  }153  /**154   * Combines the internal pdf zoom and the browser zoom to155   * produce the total zoom level for the viewer.156   * @param {number} internalZoom the zoom level internal to the viewer.157   * @return {number} the total zoom level.158   */159  applyBrowserZoom(internalZoom) {160    // The internal zoom and browser zoom are changed together, so the161    // browser zoom is already applied.162    return internalZoom;163  }164  /**165   * Given a zoom level, return the internal zoom level needed to166   * produce that zoom level.167   * @param {number} totalZoom the total zoom level.168   * @return {number} the zoom level internal to the viewer.169   */170  internalZoomComponent(totalZoom) {171    // The internal zoom and browser zoom are changed together, so the172    // internal zoom is the total zoom.173    return totalZoom;174  }175}176// Responds to changes in the browser zoom, but does not control the browser177// zoom.178class EmbeddedZoomManager extends ZoomManager {179  /**180   * Invoked when a browser-initiated zoom-level change occurs.181   * @param {number} newZoom the new browser zoom level.182   */183  onBrowserZoomChange(newZoom) {184    const oldZoom = this.browserZoom_;185    this.browserZoom_ = newZoom;186    this.eventTarget_.dispatchEvent(187        new CustomEvent('update-zoom-from-browser', {detail: oldZoom}));188  }...

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