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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
var zrUtil = require("zrender/lib/core/util");
var eventTool = require("zrender/lib/core/event");
var graphic = require("../../util/graphic");
var throttle = require("../../util/throttle");
var DataZoomView = require("./DataZoomView");
var numberUtil = require("../../util/number");
var layout = require("../../util/layout");
var sliderMove = require("../helper/sliderMove");
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
var Rect = graphic.Rect;
var linearMap = numberUtil.linearMap;
var asc = numberUtil.asc;
var bind = zrUtil.bind;
var each = zrUtil.each; // Constants
var DEFAULT_LOCATION_EDGE_GAP = 7;
var DEFAULT_FRAME_BORDER_WIDTH = 1;
var DEFAULT_FILLER_SIZE = 30;
var HORIZONTAL = 'horizontal';
var VERTICAL = 'vertical';
var LABEL_GAP = 5;
var SHOW_DATA_SHADOW_SERIES_TYPE = ['line', 'bar', 'candlestick', 'scatter'];
var SliderZoomView = DataZoomView.extend({
type: 'dataZoom.slider',
init: function (ecModel, api) {
/**
* @private
* @type {Object}
*/
this._displayables = {};
/**
* @private
* @type {string}
*/
this._orient;
/**
* [0, 100]
* @private
*/
this._range;
/**
* [coord of the first handle, coord of the second handle]
* @private
*/
this._handleEnds;
/**
* [length, thick]
* @private
* @type {Array.<number>}
*/
this._size;
/**
* @private
* @type {number}
*/
this._handleWidth;
/**
* @private
* @type {number}
*/
this._handleHeight;
/**
* @private
*/
this._location;
/**
* @private
*/
this._dragging;
/**
* @private
*/
this._dataShadowInfo;
this.api = api;
},
/**
* @override
*/
render: function (dataZoomModel, ecModel, api, payload) {
SliderZoomView.superApply(this, 'render', arguments);
throttle.createOrUpdate(this, '_dispatchZoomAction', this.dataZoomModel.get('throttle'), 'fixRate');
this._orient = dataZoomModel.get('orient');
if (this.dataZoomModel.get('show') === false) {
this.group.removeAll();
return;
} // Notice: this._resetInterval() should not be executed when payload.type
// is 'dataZoom', origin this._range should be maintained, otherwise 'pan'
// or 'zoom' info will be missed because of 'throttle' of this.dispatchAction,
if (!payload || payload.type !== 'dataZoom' || payload.from !== this.uid) {
this._buildView();
}
this._updateView();
},
/**
* @override
*/
remove: function () {
SliderZoomView.superApply(this, 'remove', arguments);
throttle.clear(this, '_dispatchZoomAction');
},
/**
* @override
*/
dispose: function () {
SliderZoomView.superApply(this, 'dispose', arguments);
throttle.clear(this, '_dispatchZoomAction');
},
_buildView: function () {
var thisGroup = this.group;
thisGroup.removeAll();
this._resetLocation();
this._resetInterval();
var barGroup = this._displayables.barGroup = new graphic.Group();
this._renderBackground();
this._renderHandle();
this._renderDataShadow();
thisGroup.add(barGroup);
this._positionGroup();
},
/**
* @private
*/
_resetLocation: function () {
var dataZoomModel = this.dataZoomModel;
var api = this.api; // If some of x/y/width/height are not specified,
// auto-adapt according to target grid.
var coordRect = this._findCoordRect();
var ecSize = {
width: api.getWidth(),
height: api.getHeight()
}; // Default align by coordinate system rect.
var positionInfo = this._orient === HORIZONTAL ? {
// Why using 'right', because right should be used in vertical,
// and it is better to be consistent for dealing with position param merge.
right: ecSize.width - coordRect.x - coordRect.width,
top: ecSize.height - DEFAULT_FILLER_SIZE - DEFAULT_LOCATION_EDGE_GAP,
width: coordRect.width,
height: DEFAULT_FILLER_SIZE
} : {
// vertical
right: DEFAULT_LOCATION_EDGE_GAP,
top: coordRect.y,
width: DEFAULT_FILLER_SIZE,
height: coordRect.height
}; // Do not write back to option and replace value 'ph', because
// the 'ph' value should be recalculated when resize.
var layoutParams = layout.getLayoutParams(dataZoomModel.option); // Replace the placeholder value.
zrUtil.each(['right', 'top', 'width', 'height'], function (name) {
if (layoutParams[name] === 'ph') {
layoutParams[name] = positionInfo[name];
}
});
var layoutRect = layout.getLayoutRect(layoutParams, ecSize, dataZoomModel.padding);
this._location = {
x: layoutRect.x,
y: layoutRect.y
};
this._size = [layoutRect.width, layoutRect.height];
this._orient === VERTICAL && this._size.reverse();
},
/**
* @private
*/
_positionGroup: function () {
var thisGroup = this.group;
var location = this._location;
var orient = this._orient; // Just use the first axis to determine mapping.
var targetAxisModel = this.dataZoomModel.getFirstTargetAxisModel();
var inverse = targetAxisModel && targetAxisModel.get('inverse');
var barGroup = this._displayables.barGroup;
var otherAxisInverse = (this._dataShadowInfo || {}).otherAxisInverse; // Transform barGroup.
barGroup.attr(orient === HORIZONTAL && !inverse ? {
scale: otherAxisInverse ? [1, 1] : [1, -1]
} : orient === HORIZONTAL && inverse ? {
scale: otherAxisInverse ? [-1, 1] : [-1, -1]
} : orient === VERTICAL && !inverse ? {
scale: otherAxisInverse ? [1, -1] : [1, 1],
rotation: Math.PI / 2 // Dont use Math.PI, considering shadow direction.
} : {
scale: otherAxisInverse ? [-1, -1] : [-1, 1],
rotation: Math.PI / 2
}); // Position barGroup
var rect = thisGroup.getBoundingRect([barGroup]);
thisGroup.attr('position', [location.x - rect.x, location.y - rect.y]);
},
/**
* @private
*/
_getViewExtent: function () {
return [0, this._size[0]];
},
_renderBackground: function () {
var dataZoomModel = this.dataZoomModel;
var size = this._size;
var barGroup = this._displayables.barGroup;
barGroup.add(new Rect({
silent: true,
shape: {
x: 0,
y: 0,
width: size[0],
height: size[1]
},
style: {
fill: dataZoomModel.get('backgroundColor')
},
z2: -40
})); // Click panel, over shadow, below handles.
barGroup.add(new Rect({
shape: {
x: 0,
y: 0,
width: size[0],
height: size[1]
},
style: {
fill: 'transparent'
},
z2: 0,
onclick: zrUtil.bind(this._onClickPanelClick, this)
}));
},
_renderDataShadow: function () {
var info = this._dataShadowInfo = this._prepareDataShadowInfo();
if (!info) {
return;
}
var size = this._size;
var seriesModel = info.series;
var data = seriesModel.getRawData();
var otherDim = seriesModel.getShadowDim ? seriesModel.getShadowDim() // @see candlestick
: info.otherDim;
if (otherDim == null) {
return;
}
var otherDataExtent = data.getDataExtent(otherDim); // Nice extent.
var otherOffset = (otherDataExtent[1] - otherDataExtent[0]) * 0.3;
otherDataExtent = [otherDataExtent[0] - otherOffset, otherDataExtent[1] + otherOffset];
var otherShadowExtent = [0, size[1]];
var thisShadowExtent = [0, size[0]];
var areaPoints = [[size[0], 0], [0, 0]];
var linePoints = [];
var step = thisShadowExtent[1] / (data.count() - 1);
var thisCoord = 0; // Optimize for large data shadow
var stride = Math.round(data.count() / size[0]);
var lastIsEmpty;
data.each([otherDim], function (value, index) {
if (stride > 0 && index % stride) {
thisCoord += step;
return;
} // FIXME
// Should consider axis.min/axis.max when drawing dataShadow.
// FIXME
// 应该使用统一的空判断？还是在list里进行空判断？
var isEmpty = value == null || isNaN(value) || value === ''; // See #4235.
var otherCoord = isEmpty ? 0 : linearMap(value, otherDataExtent, otherShadowExtent, true); // Attempt to draw data shadow precisely when there are empty value.
if (isEmpty && !lastIsEmpty && index) {
areaPoints.push([areaPoints[areaPoints.length - 1][0], 0]);
linePoints.push([linePoints[linePoints.length - 1][0], 0]);
} else if (!isEmpty && lastIsEmpty) {
areaPoints.push([thisCoord, 0]);
linePoints.push([thisCoord, 0]);
}
areaPoints.push([thisCoord, otherCoord]);
linePoints.push([thisCoord, otherCoord]);
thisCoord += step;
lastIsEmpty = isEmpty;
});
var dataZoomModel = this.dataZoomModel; // var dataBackgroundModel = dataZoomModel.getModel('dataBackground');
this._displayables.barGroup.add(new graphic.Polygon({
shape: {
points: areaPoints
},
style: zrUtil.defaults({
fill: dataZoomModel.get('dataBackgroundColor')
}, dataZoomModel.getModel('dataBackground.areaStyle').getAreaStyle()),
silent: true,
z2: -20
}));
this._displayables.barGroup.add(new graphic.Polyline({
shape: {
points: linePoints
},
style: dataZoomModel.getModel('dataBackground.lineStyle').getLineStyle(),
silent: true,
z2: -19
}));
},
_prepareDataShadowInfo: function () {
var dataZoomModel = this.dataZoomModel;
var showDataShadow = dataZoomModel.get('showDataShadow');
if (showDataShadow === false) {
return;
} // Find a representative series.
var result;
var ecModel = this.ecModel;
dataZoomModel.eachTargetAxis(function (dimNames, axisIndex) {
var seriesModels = dataZoomModel.getAxisProxy(dimNames.name, axisIndex).getTargetSeriesModels();
zrUtil.each(seriesModels, function (seriesModel) {
if (result) {
return;
}
if (showDataShadow !== true && zrUtil.indexOf(SHOW_DATA_SHADOW_SERIES_TYPE, seriesModel.get('type')) < 0) {
return;
}
var thisAxis = ecModel.getComponent(dimNames.axis, axisIndex).axis;
var otherDim = getOtherDim(dimNames.name);
var otherAxisInverse;
var coordSys = seriesModel.coordinateSystem;
if (otherDim != null && coordSys.getOtherAxis) {
otherAxisInverse = coordSys.getOtherAxis(thisAxis).inverse;
}
otherDim = seriesModel.getData().mapDimension(otherDim);
result = {
thisAxis: thisAxis,
series: seriesModel,
thisDim: dimNames.name,
otherDim: otherDim,
otherAxisInverse: otherAxisInverse
};
}, this);
}, this);
return result;
},
_renderHandle: function () {
var displaybles = this._displayables;
var handles = displaybles.handles = [];
var handleLabels = displaybles.handleLabels = [];
var barGroup = this._displayables.barGroup;
var size = this._size;
var dataZoomModel = this.dataZoomModel;
barGroup.add(displaybles.filler = new Rect({
draggable: true,
cursor: getCursor(this._orient),
drift: bind(this._onDragMove, this, 'all'),
ondragstart: bind(this._showDataInfo, this, true),
ondragend: bind(this._onDragEnd, this),
onmouseover: bind(this._showDataInfo, this, true),
onmouseout: bind(this._showDataInfo, this, false),
style: {
fill: dataZoomModel.get('fillerColor'),
textPosition: 'inside'
}
})); // Frame border.
barGroup.add(new Rect({
silent: true,
subPixelOptimize: true,
shape: {
x: 0,
y: 0,
width: size[0],
height: size[1]
},
style: {
stroke: dataZoomModel.get('dataBackgroundColor') || dataZoomModel.get('borderColor'),
lineWidth: DEFAULT_FRAME_BORDER_WIDTH,
fill: 'rgba(0,0,0,0)'
}
}));
each([0, 1], function (handleIndex) {
var path = graphic.createIcon(dataZoomModel.get('handleIcon'), {
cursor: getCursor(this._orient),
draggable: true,
drift: bind(this._onDragMove, this, handleIndex),
ondragend: bind(this._onDragEnd, this),
onmouseover: bind(this._showDataInfo, this, true),
onmouseout: bind(this._showDataInfo, this, false)
}, {
x: -1,
y: 0,
width: 2,
height: 2
});
var bRect = path.getBoundingRect();
this._handleHeight = numberUtil.parsePercent(dataZoomModel.get('handleSize'), this._size[1]);
this._handleWidth = bRect.width / bRect.height * this._handleHeight;
path.setStyle(dataZoomModel.getModel('handleStyle').getItemStyle());
var handleColor = dataZoomModel.get('handleColor'); // Compatitable with previous version
if (handleColor != null) {
path.style.fill = handleColor;
}
barGroup.add(handles[handleIndex] = path);
var textStyleModel = dataZoomModel.textStyleModel;
this.group.add(handleLabels[handleIndex] = new graphic.Text({
silent: true,
invisible: true,
style: {
x: 0,
y: 0,
text: '',
textVerticalAlign: 'middle',
textAlign: 'center',
textFill: textStyleModel.getTextColor(),
textFont: textStyleModel.getFont()
},
z2: 10
}));
}, this);
},
/**
* @private
*/
_resetInterval: function () {
var range = this._range = this.dataZoomModel.getPercentRange();
var viewExtent = this._getViewExtent();
this._handleEnds = [linearMap(range[0], [0, 100], viewExtent, true), linearMap(range[1], [0, 100], viewExtent, true)];
},
/**
* @private
* @param {(number|string)} handleIndex 0 or 1 or 'all'
* @param {number} delta
* @return {boolean} changed
*/
_updateInterval: function (handleIndex, delta) {
var dataZoomModel = this.dataZoomModel;
var handleEnds = this._handleEnds;
var viewExtend = this._getViewExtent();
var minMaxSpan = dataZoomModel.findRepresentativeAxisProxy().getMinMaxSpan();
var percentExtent = [0, 100];
sliderMove(delta, handleEnds, viewExtend, dataZoomModel.get('zoomLock') ? 'all' : handleIndex, minMaxSpan.minSpan != null ? linearMap(minMaxSpan.minSpan, percentExtent, viewExtend, true) : null, minMaxSpan.maxSpan != null ? linearMap(minMaxSpan.maxSpan, percentExtent, viewExtend, true) : null);
var lastRange = this._range;
var range = this._range = asc([linearMap(handleEnds[0], viewExtend, percentExtent, true), linearMap(handleEnds[1], viewExtend, percentExtent, true)]);
return !lastRange || lastRange[0] !== range[0] || lastRange[1] !== range[1];
},
/**
* @private
*/
_updateView: function (nonRealtime) {
var displaybles = this._displayables;
var handleEnds = this._handleEnds;
var handleInterval = asc(handleEnds.slice());
var size = this._size;
each([0, 1], function (handleIndex) {
// Handles
var handle = displaybles.handles[handleIndex];
var handleHeight = this._handleHeight;
handle.attr({
scale: [handleHeight / 2, handleHeight / 2],
position: [handleEnds[handleIndex], size[1] / 2 - handleHeight / 2]
});
}, this); // Filler
displaybles.filler.setShape({
x: handleInterval[0],
y: 0,
width: handleInterval[1] - handleInterval[0],
height: size[1]
});
this._updateDataInfo(nonRealtime);
},
/**
* @private
*/
_updateDataInfo: function (nonRealtime) {
var dataZoomModel = this.dataZoomModel;
var displaybles = this._displayables;
var handleLabels = displaybles.handleLabels;
var orient = this._orient;
var labelTexts = ['', '']; // FIXME
// date型，支持formatter，autoformatter（ec2 date.getAutoFormatter）
if (dataZoomModel.get('showDetail')) {
var axisProxy = dataZoomModel.findRepresentativeAxisProxy();
if (axisProxy) {
var axis = axisProxy.getAxisModel().axis;
var range = this._range;
var dataInterval = nonRealtime // See #4434, data and axis are not processed and reset yet in non-realtime mode.
? axisProxy.calculateDataWindow({
start: range[0],
end: range[1]
}).valueWindow : axisProxy.getDataValueWindow();
labelTexts = [this._formatLabel(dataInterval[0], axis), this._formatLabel(dataInterval[1], axis)];
}
}
var orderedHandleEnds = asc(this._handleEnds.slice());
setLabel.call(this, 0);
setLabel.call(this, 1);
function setLabel(handleIndex) {
// Label
// Text should not transform by barGroup.
// Ignore handlers transform
var barTransform = graphic.getTransform(displaybles.handles[handleIndex].parent, this.group);
var direction = graphic.transformDirection(handleIndex === 0 ? 'right' : 'left', barTransform);
var offset = this._handleWidth / 2 + LABEL_GAP;
var textPoint = graphic.applyTransform([orderedHandleEnds[handleIndex] + (handleIndex === 0 ? -offset : offset), this._size[1] / 2], barTransform);
handleLabels[handleIndex].setStyle({
x: textPoint[0],
y: textPoint[1],
textVerticalAlign: orient === HORIZONTAL ? 'middle' : direction,
textAlign: orient === HORIZONTAL ? direction : 'center',
text: labelTexts[handleIndex]
});
}
},
/**
* @private
*/
_formatLabel: function (value, axis) {
var dataZoomModel = this.dataZoomModel;
var labelFormatter = dataZoomModel.get('labelFormatter');
var labelPrecision = dataZoomModel.get('labelPrecision');
if (labelPrecision == null || labelPrecision === 'auto') {
labelPrecision = axis.getPixelPrecision();
}
var valueStr = value == null || isNaN(value) ? '' // FIXME Glue code
: axis.type === 'category' || axis.type === 'time' ? axis.scale.getLabel(Math.round(value)) // param of toFixed should less then 20.
: value.toFixed(Math.min(labelPrecision, 20));
return zrUtil.isFunction(labelFormatter) ? labelFormatter(value, valueStr) : zrUtil.isString(labelFormatter) ? labelFormatter.replace('{value}', valueStr) : valueStr;
},
/**
* @private
* @param {boolean} showOrHide true: show, false: hide
*/
_showDataInfo: function (showOrHide) {
// Always show when drgging.
showOrHide = this._dragging || showOrHide;
var handleLabels = this._displayables.handleLabels;
handleLabels[0].attr('invisible', !showOrHide);
handleLabels[1].attr('invisible', !showOrHide);
},
_onDragMove: function (handleIndex, dx, dy, event) {
this._dragging = true; // For mobile device, prevent screen slider on the button.
eventTool.stop(event.event); // Transform dx, dy to bar coordination.
var barTransform = this._displayables.barGroup.getLocalTransform();
var vertex = graphic.applyTransform([dx, dy], barTransform, true);
var changed = this._updateInterval(handleIndex, vertex[0]);
var realtime = this.dataZoomModel.get('realtime');
this._updateView(!realtime); // Avoid dispatch dataZoom repeatly but range not changed,
// which cause bad visual effect when progressive enabled.
changed && realtime && this._dispatchZoomAction();
},
_onDragEnd: function () {
this._dragging = false;
this._showDataInfo(false); // While in realtime mode and stream mode, dispatch action when
// drag end will cause the whole view rerender, which is unnecessary.
var realtime = this.dataZoomModel.get('realtime');
!realtime && this._dispatchZoomAction();
},
_onClickPanelClick: function (e) {
var size = this._size;
var localPoint = this._displayables.barGroup.transformCoordToLocal(e.offsetX, e.offsetY);
if (localPoint[0] < 0 || localPoint[0] > size[0] || localPoint[1] < 0 || localPoint[1] > size[1]) {
return;
}
var handleEnds = this._handleEnds;
var center = (handleEnds[0] + handleEnds[1]) / 2;
var changed = this._updateInterval('all', localPoint[0] - center);
this._updateView();
changed && this._dispatchZoomAction();
},
/**
* This action will be throttled.
* @private
*/
_dispatchZoomAction: function () {
var range = this._range;
this.api.dispatchAction({
type: 'dataZoom',
from: this.uid,
dataZoomId: this.dataZoomModel.id,
start: range[0],
end: range[1]
});
},
/**
* @private
*/
_findCoordRect: function () {
// Find the grid coresponding to the first axis referred by dataZoom.
var rect;
each(this.getTargetCoordInfo(), function (coordInfoList) {
if (!rect && coordInfoList.length) {
var coordSys = coordInfoList[0].model.coordinateSystem;
rect = coordSys.getRect && coordSys.getRect();
}
});
if (!rect) {
var width = this.api.getWidth();
var height = this.api.getHeight();
rect = {
x: width * 0.2,
y: height * 0.2,
width: width * 0.6,
height: height * 0.6
};
}
return rect;
}
});
function getOtherDim(thisDim) {
// FIXME
// 这个逻辑和getOtherAxis里一致，但是写在这里是否不好
var map = {
x: 'y',
y: 'x',
radius: 'angle',
angle: 'radius'
};
return map[thisDim];
}
function getCursor(orient) {
return orient === 'vertical' ? 'ns-resize' : 'ew-resize';
}
var _default = SliderZoomView;
module.exports = _default;