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@@ -13,7 +13,7 @@ log.txt | |
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| ## Build | ||
| /dist | ||
| montage.dist.js | ||
| montage.min.js | ||
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| ## jsdoc | ||
| /doc | ||
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| /** | ||
| * @module ./rotation-composer.reel | ||
| * @requires montage/composer/composer | ||
| */ | ||
| var Composer = require("./composer").Composer, | ||
| TranslateComposer = require("./translate-composer").TranslateComposer; | ||
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| /** | ||
| * @class RotationComposer | ||
| * @extends Composer | ||
| */ | ||
| exports.RotationComposer = Composer.specialize(/** @lends RotationComposer# */ { | ||
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| /** | ||
| Dispatched when a rotation is started | ||
| @event rotationStart | ||
| @memberof RotationComposer | ||
| @param {RotationEvent} event | ||
| */ | ||
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| /** | ||
| Dispatched when a rotation changes | ||
| @event rotation | ||
| @memberof RotationComposer | ||
| @param {RotationEvent} event | ||
| */ | ||
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| /** | ||
| Unit for dispatched angles. Options: radians and degrees | ||
| Radians are the default as it is the standard in angular measures | ||
| To think about: should it accept "deg" as degrees to be equivalent to CSS notation? | ||
| */ | ||
| _unit: { | ||
| value: "radians" | ||
| }, | ||
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| unit: { | ||
| get: function () { | ||
| return this._unit; | ||
| }, | ||
| set: function (value) { | ||
| if (value === "degrees") { | ||
| this._unit = "degrees"; | ||
| } else { | ||
| this._unit = "radians"; | ||
| } | ||
| } | ||
| }, | ||
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| constructor: { | ||
| value: function RotationComposer() { | ||
| this.super(); | ||
| this._translateComposer = new TranslateComposer(); | ||
| this._translateComposer.hasMomentum = false; | ||
| this._translateComposer.hasBouncing = false; | ||
| } | ||
| }, | ||
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| // Load/unload | ||
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| load: { | ||
| value: function() { | ||
| this.component.addComposerForElement(this._translateComposer, this.element); | ||
| this._translateComposer.load(); | ||
| this._translateComposer.addEventListener("translateStart", this, false); | ||
| this._translateComposer.addEventListener("translateEnd", this, false); | ||
| this._translateComposer.addEventListener("translate", this, false); | ||
| } | ||
| }, | ||
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| unload: { | ||
| value: function() { | ||
| } | ||
| }, | ||
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| handleTranslateStart: { | ||
| value: function() { | ||
| var start = this._translateComposer.pointerStartEventPosition, | ||
| deltaX = start.pageX - this.center.pageX, | ||
| deltaY = start.pageY - this.center.pageY; | ||
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| this._translateComposer.translateX = start.pageX; | ||
| this._translateComposer.translateY = start.pageY; | ||
| this._previousAngle = Math.atan2(deltaY, deltaX); | ||
| this._deltaAngle = 0; | ||
| this._dispatchRotateStart(); | ||
| } | ||
| }, | ||
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| handleTranslateEnd: { | ||
| value: function() { | ||
| this._dispatchRotateEnd(); | ||
| } | ||
| }, | ||
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| handleTranslate: { | ||
| value: function(event) { | ||
| var deltaX = event.translateX - this.center.pageX, | ||
| deltaY = event.translateY - this.center.pageY, | ||
| currentAngle = Math.atan2(deltaY, deltaX), | ||
| deltaAngle = currentAngle - this._previousAngle; | ||
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| if (deltaAngle > Math.PI) { | ||
| deltaAngle -= Math.PI * 2; | ||
| } else { | ||
| if (deltaAngle < -Math.PI) { | ||
| deltaAngle += Math.PI * 2; | ||
| } | ||
| } | ||
| this.angleInRadians += deltaAngle; | ||
| this._deltaAngle = deltaAngle; | ||
| this._previousAngle = currentAngle; | ||
| this._dispatchRotate(); | ||
| } | ||
| }, | ||
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| angleInRadians: { | ||
| value: 0 | ||
| }, | ||
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| _deltaAngle: { | ||
| value: 0 | ||
| }, | ||
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| _dispatchRotateStart: { | ||
| value: function() { | ||
| var event = document.createEvent("CustomEvent"); | ||
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| event.initCustomEvent("rotateStart", true, true, null); | ||
| event.unit = this._unit; | ||
| if (this._unit === "radians") { | ||
| event.rotation = this.angleInRadians; | ||
| event.deltaRotation = this._deltaAngle; | ||
| } else { | ||
| event.rotation = (this.angleInRadians * 180) / Math.PI; | ||
| event.deltaRotation = (this._deltaAngle * 180) / Math.PI; | ||
| } | ||
| this.dispatchEvent(event); | ||
| } | ||
| }, | ||
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| _dispatchRotate: { | ||
| value: function() { | ||
| var event = document.createEvent("CustomEvent"); | ||
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| event.initCustomEvent("rotate", true, true, null); | ||
| event.unit = this._unit; | ||
| if (this._unit === "radians") { | ||
| event.rotation = this.angleInRadians; | ||
| event.deltaRotation = this._deltaAngle; | ||
| } else { | ||
| event.rotation = (this.angleInRadians * 180) / Math.PI; | ||
| event.deltaRotation = (this._deltaAngle * 180) / Math.PI; | ||
| } | ||
| this.dispatchEvent(event); | ||
| } | ||
| }, | ||
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| _dispatchRotateEnd: { | ||
| value: function() { | ||
| var event = document.createEvent("CustomEvent"); | ||
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| event.initCustomEvent("rotateEnd", true, true, null); | ||
| event.unit = this._unit; | ||
| event.deltaRotation = 0; | ||
| if (this._unit === "radians") { | ||
| event.rotation = this.angleInRadians; | ||
| } else { | ||
| event.rotation = (this.angleInRadians * 180) / Math.PI; | ||
| } | ||
| this.dispatchEvent(event); | ||
| } | ||
| }, | ||
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| // To review: I would call this axisCoordinates or similar | ||
| center: { | ||
| value: null | ||
| }, | ||
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| _start: { | ||
| value: null | ||
| }, | ||
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| _translateComposer: { | ||
| value: null | ||
| }, | ||
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| animateMomentum: { | ||
| get: function () { | ||
| return this._translateComposer.animateMomentum; | ||
| }, | ||
| set: function (value) { | ||
| this._translateComposer.animateMomentum = !!value; | ||
| } | ||
| }, | ||
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| /** | ||
| * Whether to keep translating after the user has releases the cursor. | ||
| * @type {boolean} | ||
| * @default true | ||
| */ | ||
| hasMomentum: { | ||
| get: function () { | ||
| return this._translateComposer.hasMomentum; | ||
| }, | ||
| set: function (value) { | ||
| this._translateComposer.hasMomentum = !!value; | ||
| } | ||
| } | ||
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| }); |
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