| /* |
| * 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. |
| */ |
| import * as echarts from '../echarts'; |
| import * as zrUtil from 'zrender/src/core/util'; |
| import * as throttleUtil from '../util/throttle'; |
| import parallelPreprocessor from '../coord/parallel/parallelPreprocessor'; |
| import '../coord/parallel/parallelCreator'; |
| import '../coord/parallel/ParallelModel'; |
| import './parallelAxis'; |
| var CLICK_THRESHOLD = 5; // > 4 |
| // Parallel view |
| |
| echarts.extendComponentView({ |
| type: 'parallel', |
| render: function (parallelModel, ecModel, api) { |
| this._model = parallelModel; |
| this._api = api; |
| |
| if (!this._handlers) { |
| this._handlers = {}; |
| zrUtil.each(handlers, function (handler, eventName) { |
| api.getZr().on(eventName, this._handlers[eventName] = zrUtil.bind(handler, this)); |
| }, this); |
| } |
| |
| throttleUtil.createOrUpdate(this, '_throttledDispatchExpand', parallelModel.get('axisExpandRate'), 'fixRate'); |
| }, |
| dispose: function (ecModel, api) { |
| zrUtil.each(this._handlers, function (handler, eventName) { |
| api.getZr().off(eventName, handler); |
| }); |
| this._handlers = null; |
| }, |
| |
| /** |
| * @param {Object} [opt] If null, cancle the last action triggering for debounce. |
| */ |
| _throttledDispatchExpand: function (opt) { |
| this._dispatchExpand(opt); |
| }, |
| _dispatchExpand: function (opt) { |
| opt && this._api.dispatchAction(zrUtil.extend({ |
| type: 'parallelAxisExpand' |
| }, opt)); |
| } |
| }); |
| var handlers = { |
| mousedown: function (e) { |
| if (checkTrigger(this, 'click')) { |
| this._mouseDownPoint = [e.offsetX, e.offsetY]; |
| } |
| }, |
| mouseup: function (e) { |
| var mouseDownPoint = this._mouseDownPoint; |
| |
| if (checkTrigger(this, 'click') && mouseDownPoint) { |
| var point = [e.offsetX, e.offsetY]; |
| var dist = Math.pow(mouseDownPoint[0] - point[0], 2) + Math.pow(mouseDownPoint[1] - point[1], 2); |
| |
| if (dist > CLICK_THRESHOLD) { |
| return; |
| } |
| |
| var result = this._model.coordinateSystem.getSlidedAxisExpandWindow([e.offsetX, e.offsetY]); |
| |
| result.behavior !== 'none' && this._dispatchExpand({ |
| axisExpandWindow: result.axisExpandWindow |
| }); |
| } |
| |
| this._mouseDownPoint = null; |
| }, |
| mousemove: function (e) { |
| // Should do nothing when brushing. |
| if (this._mouseDownPoint || !checkTrigger(this, 'mousemove')) { |
| return; |
| } |
| |
| var model = this._model; |
| var result = model.coordinateSystem.getSlidedAxisExpandWindow([e.offsetX, e.offsetY]); |
| var behavior = result.behavior; |
| behavior === 'jump' && this._throttledDispatchExpand.debounceNextCall(model.get('axisExpandDebounce')); |
| |
| this._throttledDispatchExpand(behavior === 'none' ? null // Cancle the last trigger, in case that mouse slide out of the area quickly. |
| : { |
| axisExpandWindow: result.axisExpandWindow, |
| // Jumping uses animation, and sliding suppresses animation. |
| animation: behavior === 'jump' ? null : false |
| }); |
| } |
| }; |
| |
| function checkTrigger(view, triggerOn) { |
| var model = view._model; |
| return model.get('axisExpandable') && model.get('axisExpandTriggerOn') === triggerOn; |
| } |
| |
| echarts.registerPreprocessor(parallelPreprocessor); |