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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* AUTO-GENERATED FILE. DO NOT MODIFY.
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*/
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import { __extends } from "tslib";
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import Eventful from 'zrender/lib/core/Eventful.js';
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import * as eventTool from 'zrender/lib/core/event.js';
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import * as interactionMutex from './interactionMutex.js';
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import { isString, bind, defaults, clone } from 'zrender/lib/core/util.js';
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;
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var RoamController = /** @class */function (_super) {
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__extends(RoamController, _super);
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function RoamController(zr) {
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var _this = _super.call(this) || this;
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_this._zr = zr;
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// Avoid two roamController bind the same handler
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var mousedownHandler = bind(_this._mousedownHandler, _this);
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var mousemoveHandler = bind(_this._mousemoveHandler, _this);
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var mouseupHandler = bind(_this._mouseupHandler, _this);
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var mousewheelHandler = bind(_this._mousewheelHandler, _this);
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var pinchHandler = bind(_this._pinchHandler, _this);
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/**
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* Notice: only enable needed types. For example, if 'zoom'
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* is not needed, 'zoom' should not be enabled, otherwise
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* default mousewheel behaviour (scroll page) will be disabled.
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*/
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_this.enable = function (controlType, opt) {
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// Disable previous first
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this.disable();
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this._opt = defaults(clone(opt) || {}, {
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zoomOnMouseWheel: true,
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moveOnMouseMove: true,
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// By default, wheel do not trigger move.
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moveOnMouseWheel: false,
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preventDefaultMouseMove: true
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});
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if (controlType == null) {
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controlType = true;
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}
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if (controlType === true || controlType === 'move' || controlType === 'pan') {
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zr.on('mousedown', mousedownHandler);
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zr.on('mousemove', mousemoveHandler);
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zr.on('mouseup', mouseupHandler);
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}
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if (controlType === true || controlType === 'scale' || controlType === 'zoom') {
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zr.on('mousewheel', mousewheelHandler);
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zr.on('pinch', pinchHandler);
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}
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};
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_this.disable = function () {
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zr.off('mousedown', mousedownHandler);
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zr.off('mousemove', mousemoveHandler);
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zr.off('mouseup', mouseupHandler);
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zr.off('mousewheel', mousewheelHandler);
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zr.off('pinch', pinchHandler);
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};
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return _this;
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}
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RoamController.prototype.isDragging = function () {
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return this._dragging;
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};
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RoamController.prototype.isPinching = function () {
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return this._pinching;
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};
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RoamController.prototype.setPointerChecker = function (pointerChecker) {
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this.pointerChecker = pointerChecker;
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};
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RoamController.prototype.dispose = function () {
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this.disable();
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};
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RoamController.prototype._mousedownHandler = function (e) {
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if (eventTool.isMiddleOrRightButtonOnMouseUpDown(e)) {
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return;
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}
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var el = e.target;
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while (el) {
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if (el.draggable) {
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return;
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}
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// check if host is draggable
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el = el.__hostTarget || el.parent;
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}
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var x = e.offsetX;
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var y = e.offsetY;
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// Only check on mosedown, but not mousemove.
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// Mouse can be out of target when mouse moving.
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if (this.pointerChecker && this.pointerChecker(e, x, y)) {
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this._x = x;
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this._y = y;
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this._dragging = true;
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}
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};
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RoamController.prototype._mousemoveHandler = function (e) {
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if (!this._dragging || !isAvailableBehavior('moveOnMouseMove', e, this._opt) || e.gestureEvent === 'pinch' || interactionMutex.isTaken(this._zr, 'globalPan')) {
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return;
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}
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var x = e.offsetX;
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var y = e.offsetY;
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var oldX = this._x;
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var oldY = this._y;
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var dx = x - oldX;
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var dy = y - oldY;
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this._x = x;
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this._y = y;
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this._opt.preventDefaultMouseMove && eventTool.stop(e.event);
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trigger(this, 'pan', 'moveOnMouseMove', e, {
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dx: dx,
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dy: dy,
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oldX: oldX,
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oldY: oldY,
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newX: x,
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newY: y,
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isAvailableBehavior: null
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});
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};
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RoamController.prototype._mouseupHandler = function (e) {
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if (!eventTool.isMiddleOrRightButtonOnMouseUpDown(e)) {
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this._dragging = false;
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}
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};
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RoamController.prototype._mousewheelHandler = function (e) {
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var shouldZoom = isAvailableBehavior('zoomOnMouseWheel', e, this._opt);
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var shouldMove = isAvailableBehavior('moveOnMouseWheel', e, this._opt);
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var wheelDelta = e.wheelDelta;
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var absWheelDeltaDelta = Math.abs(wheelDelta);
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var originX = e.offsetX;
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var originY = e.offsetY;
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// wheelDelta maybe -0 in chrome mac.
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if (wheelDelta === 0 || !shouldZoom && !shouldMove) {
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return;
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}
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// If both `shouldZoom` and `shouldMove` is true, trigger
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// their event both, and the final behavior is determined
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// by event listener themselves.
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if (shouldZoom) {
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// Convenience:
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// Mac and VM Windows on Mac: scroll up: zoom out.
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// Windows: scroll up: zoom in.
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// FIXME: Should do more test in different environment.
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// wheelDelta is too complicated in difference nvironment
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// (https://developer.mozilla.org/en-US/docs/Web/Events/mousewheel),
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// although it has been normallized by zrender.
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// wheelDelta of mouse wheel is bigger than touch pad.
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var factor = absWheelDeltaDelta > 3 ? 1.4 : absWheelDeltaDelta > 1 ? 1.2 : 1.1;
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var scale = wheelDelta > 0 ? factor : 1 / factor;
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checkPointerAndTrigger(this, 'zoom', 'zoomOnMouseWheel', e, {
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scale: scale,
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originX: originX,
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originY: originY,
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isAvailableBehavior: null
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});
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}
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if (shouldMove) {
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// FIXME: Should do more test in different environment.
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var absDelta = Math.abs(wheelDelta);
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// wheelDelta of mouse wheel is bigger than touch pad.
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var scrollDelta = (wheelDelta > 0 ? 1 : -1) * (absDelta > 3 ? 0.4 : absDelta > 1 ? 0.15 : 0.05);
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checkPointerAndTrigger(this, 'scrollMove', 'moveOnMouseWheel', e, {
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scrollDelta: scrollDelta,
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originX: originX,
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originY: originY,
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isAvailableBehavior: null
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});
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}
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};
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RoamController.prototype._pinchHandler = function (e) {
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if (interactionMutex.isTaken(this._zr, 'globalPan')) {
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return;
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}
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var scale = e.pinchScale > 1 ? 1.1 : 1 / 1.1;
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checkPointerAndTrigger(this, 'zoom', null, e, {
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scale: scale,
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originX: e.pinchX,
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originY: e.pinchY,
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isAvailableBehavior: null
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});
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};
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return RoamController;
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}(Eventful);
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function checkPointerAndTrigger(controller, eventName, behaviorToCheck, e, contollerEvent) {
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if (controller.pointerChecker && controller.pointerChecker(e, contollerEvent.originX, contollerEvent.originY)) {
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// When mouse is out of roamController rect,
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// default befavoius should not be be disabled, otherwise
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// page sliding is disabled, contrary to expectation.
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eventTool.stop(e.event);
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trigger(controller, eventName, behaviorToCheck, e, contollerEvent);
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}
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}
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function trigger(controller, eventName, behaviorToCheck, e, contollerEvent) {
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// Also provide behavior checker for event listener, for some case that
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// multiple components share one listener.
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contollerEvent.isAvailableBehavior = bind(isAvailableBehavior, null, behaviorToCheck, e);
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// TODO should not have type issue.
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controller.trigger(eventName, contollerEvent);
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}
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// settings: {
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// zoomOnMouseWheel
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// moveOnMouseMove
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// moveOnMouseWheel
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// }
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// The value can be: true / false / 'shift' / 'ctrl' / 'alt'.
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function isAvailableBehavior(behaviorToCheck, e, settings) {
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var setting = settings[behaviorToCheck];
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return !behaviorToCheck || setting && (!isString(setting) || e.event[setting + 'Key']);
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}
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export default RoamController;
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