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move mouse handling code to separate file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| // Copyright (c) 2013-2015 Marco Biasini | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to | ||
| // deal in the Software without restriction, including without limitation the | ||
| // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or | ||
| // sell copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
| // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
| // DEALINGS IN THE SOFTWARE. | ||
|
|
||
| define([ | ||
| './gl-matrix', | ||
| './utils', | ||
| ], | ||
| function( | ||
| glMatrix, | ||
| utils) { | ||
|
|
||
| "use strict"; | ||
|
|
||
| var vec3 = glMatrix.vec3; | ||
|
|
||
|
|
||
| function MouseHandler(canvas, viewer, cam, animationTime) { | ||
| this._viewer = viewer; | ||
| this._canvas = canvas; | ||
| this._cam = cam; | ||
| this._canvas = canvas; | ||
| this._animationTime = animationTime; | ||
| this._init(); | ||
| } | ||
|
|
||
| MouseHandler.prototype = { | ||
|
|
||
| _centerOnClicked : function(picked) { | ||
| if (picked === null) { | ||
| return; | ||
| } | ||
| var transformedPos = vec3.create(); | ||
| var newAtom = picked.object().atom; | ||
| var pos = newAtom.pos(); | ||
| if (picked.transform()) { | ||
| vec3.transformMat4(transformedPos, pos, picked.transform()); | ||
| this._viewer.setCenter(transformedPos, this._animationTime); | ||
| } else { | ||
| this._viewer.setCenter(pos, this._animationTime); | ||
| } | ||
| }, | ||
|
|
||
| _mouseUp : function() { | ||
| var canvas = this._canvas; | ||
| canvas.removeEventListener('mousemove', this._mouseRotateListener); | ||
| canvas.removeEventListener('mousemove', this._mousePanListener); | ||
| canvas.removeEventListener('mouseup', this._mouseUpListener); | ||
| document.removeEventListener('mouseup', this._mouseUpListener); | ||
| document.removeEventListener('mousemove', this._mouseRotateListener); | ||
| document.removeEventListener('mousemove', this._mousePanListener); | ||
| }, | ||
|
|
||
| setCam : function(cam) { | ||
| this._cam = cam; | ||
| }, | ||
|
|
||
| _init : function() { | ||
| this._mousePanListener = utils.bind(this, this._mousePan); | ||
| this._mouseRotateListener = utils.bind(this, this._mouseRotate); | ||
| this._mouseUpListener = utils.bind(this, this._mouseUp); | ||
|
|
||
| // Firefox responds to the wheel event, whereas other browsers listen to | ||
| // the mousewheel event. Register different event handlers, depending on | ||
| // what properties are available. | ||
| this._canvas.onWheel(utils.bind(this, this._mouseWheelFF), | ||
| utils.bind(this, this._mouseWheel)); | ||
| this._canvas.on('dblclick', utils.bind(this, this._mouseDoubleClick)); | ||
| this._canvas.on('mousedown', utils.bind(this, this._mouseDown)); | ||
| return true; | ||
| }, | ||
|
|
||
| _mouseWheel : function(event) { | ||
| this._cam.zoom(event.wheelDelta < 0 ? -1 : 1); | ||
| event.preventDefault(); | ||
| this._viewer.requestRedraw(); | ||
| }, | ||
|
|
||
| _mouseWheelFF : function(event) { | ||
| this._cam.zoom(event.deltaY < 0 ? 1 : -1); | ||
| event.preventDefault(); | ||
| this._viewer.requestRedraw(); | ||
| }, | ||
|
|
||
| _mouseDoubleClick : (function() { | ||
| return function(event) { | ||
| var rect = this._canvas.domElement().getBoundingClientRect(); | ||
| var picked = this._viewer.pick( | ||
| { x : event.clientX - rect.left, y : event.clientY - rect.top }); | ||
| this._viewer._dispatchEvent(event, 'atomDoubleClicked', picked); | ||
| this._viewer.requestRedraw(); | ||
| }; | ||
| })(), | ||
|
|
||
| _mouseDown : function(event) { | ||
| if (event.button !== 0) { | ||
| return; | ||
| } | ||
| var currentTime = (new Date()).getTime(); | ||
| // make sure it isn't a double click | ||
| if (typeof this.lastClickTime === 'undefined' || | ||
| (currentTime - this.lastClickTime > 300)) { | ||
| this.lastClickTime = currentTime; | ||
| var rect = this._canvas.domElement().getBoundingClientRect(); | ||
| var picked = this._viewer.pick( | ||
| { x : event.clientX - rect.left, y : event.clientY - rect.top }); | ||
| this._viewer._dispatchEvent(event, 'atomClicked', picked); | ||
| } | ||
| event.preventDefault(); | ||
| if (event.shiftKey === true) { | ||
| this._canvas.on('mousemove', this._mousePanListener); | ||
| document.addEventListener('mousemove', this._mousePanListener, false); | ||
| } else { | ||
| this._canvas.on('mousemove', this._mouseRotateListener); | ||
| document.addEventListener('mousemove', this._mouseRotateListener, false); | ||
| } | ||
| this._canvas.on('mouseup', this._mouseUpListener); | ||
| document.addEventListener('mouseup', this._mouseUpListener, false); | ||
| this._lastMousePos = { x : event.pageX, y : event.pageY }; | ||
| }, | ||
|
|
||
| _mouseRotate : function(event) { | ||
| var newMousePos = { x : event.pageX, y : event.pageY }; | ||
| var delta = { | ||
| x : newMousePos.x - this._lastMousePos.x, | ||
| y : newMousePos.y - this._lastMousePos.y | ||
| }; | ||
|
|
||
| var speed = 0.005; | ||
| this._cam.rotateX(speed * delta.y); | ||
| this._cam.rotateY(speed * delta.x); | ||
| this._lastMousePos = newMousePos; | ||
| this._viewer.requestRedraw(); | ||
| }, | ||
|
|
||
| _mousePan : function(event) { | ||
| var newMousePos = { x : event.pageX, y : event.pageY }; | ||
| var delta = { | ||
| x : newMousePos.x - this._lastMousePos.x, | ||
| y : newMousePos.y - this._lastMousePos.y | ||
| }; | ||
|
|
||
| // adjust speed according to distance to camera center, it's not | ||
| // perfect but gives good enough results. | ||
| var speed = 0.001 * this._cam.zoom(); | ||
| this._cam.panXY(speed * delta.x, speed * delta.y); | ||
| this._lastMousePos = newMousePos; | ||
| this._viewer.requestRedraw(); | ||
| } | ||
|
|
||
| }; | ||
|
|
||
| return MouseHandler; | ||
|
|
||
| }); |
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