Add files

509bba0_unpacked_with_node_modules/~/drag-helper/index.js

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+'use strict';
+
+var assign   = require('object-assign')
+var Region   = require('region-align')
+var hasTouch = require('has-touch')
+var once     = require('./utils/once')
+
+var mobileTest = global.navigator ?
+    /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(global.navigator.userAgent) :
+    false
+
+var isMobile = hasTouch && mobileTest;
+
+var Helper = function(config){
+    this.config = config
+}
+
+var EVENTS = {
+    move: isMobile? 'touchmove': 'mousemove',
+    up  : isMobile? 'touchend' : 'mouseup'
+}
+
+function emptyFn(){}
+
+function getPageCoords(event){
+    var firstTouch
+
+    var pageX = event.pageX
+    var pageY = event.pageY
+
+    if (isMobile && event.touches && (firstTouch = event.touches[0])){
+        pageX = firstTouch.pageX
+        pageY = firstTouch.pageY
+    }
+
+    return {
+        pageX: pageX,
+        pageY: pageY
+    }
+}
+
+assign(Helper.prototype, {
+
+    /**
+     * Should be called on a mousedown event
+     *
+     * @param  {Event} event
+     * @return {[type]}       [description]
+     */
+    initDrag: function(event) {
+
+        this.onDragInit(event)
+
+        var events = this.config.events || EVENTS
+
+        var onDragStart = once(this.onDragStart, this)
+        var target = isMobile?
+                        event.target:
+                        global
+
+        var mouseMoveListener = (function(event){
+            onDragStart(event)
+            this.onDrag(event)
+        }).bind(this)
+
+        var mouseUpListener = (function(event){
+
+            this.onDrop(event)
+
+            target.removeEventListener(events.move, mouseMoveListener)
+            target.removeEventListener(events.up, mouseUpListener)
+        }).bind(this)
+
+        target.addEventListener(events.move, mouseMoveListener, false)
+        target.addEventListener(events.up, mouseUpListener)
+    },
+
+    onDragInit: function(event){
+
+        var config = {
+            diff: {
+                left: 0,
+                top : 0
+            }
+        }
+        this.state = {
+            config: config
+        }
+
+        if (this.config.region){
+            this.state.initialRegion = Region.from(this.config.region)
+            this.state.dragRegion =
+                config.dragRegion =
+                    this.state.initialRegion.clone()
+        }
+        if (this.config.constrainTo){
+            this.state.constrainTo = Region.from(this.config.constrainTo)
+        }
+
+        this.callConfig('onDragInit', event)
+    },
+
+    /**
+     * Called when the first mousemove event occurs after drag is initialized
+     * @param  {Event} event
+     */
+    onDragStart: function(event){
+        this.state.initPageCoords = getPageCoords(event)
+
+        this.state.didDrag = this.state.config.didDrag = true
+        this.callConfig('onDragStart', event)
+    },
+
+    /**
+     * Called on all mousemove events after drag is initialized.
+     *
+     * @param  {Event} event
+     */
+    onDrag: function(event){
+
+        var config = this.state.config
+
+        var initPageCoords = this.state.initPageCoords
+        var eventCoords = getPageCoords(event)
+
+        var diff = config.diff = {
+            left: eventCoords.pageX - initPageCoords.pageX,
+            top : eventCoords.pageY - initPageCoords.pageY
+        }
+
+        if (this.state.initialRegion){
+            var dragRegion = config.dragRegion
+
+            //set the dragRegion to initial coords
+            dragRegion.set(this.state.initialRegion)
+
+            //shift it to the new position
+            dragRegion.shift(diff)
+
+            if (this.state.constrainTo){
+                //and finally constrain it if it's the case
+                var boolConstrained = dragRegion.constrainTo(this.state.constrainTo)
+
+                diff.left = dragRegion.left - this.state.initialRegion.left
+                diff.top  = dragRegion.top  - this.state.initialRegion.top
+
+                // console.log(diff);
+            }
+
+            config.dragRegion = dragRegion
+        }
+
+        this.callConfig('onDrag', event)
+    },
+
+    /**
+     * Called on the mouseup event on window
+     *
+     * @param  {Event} event
+     */
+    onDrop: function(event){
+        this.callConfig('onDrop', event)
+
+        this.state = null
+    },
+
+    callConfig: function(fnName, event){
+        var config = this.state.config
+        var args   = [event, config]
+
+        var fn = this.config[fnName]
+
+        if (fn){
+            fn.apply(this, args)
+        }
+    }
+
+})
+
+module.exports = function(event, config){
+
+    if (config.scope){
+        var skippedKeys = {
+            scope      : 1,
+            region     : 1,
+            constrainTo: 1
+        }
+
+        Object.keys(config).forEach(function(key){
+            var value = config[key]
+
+            if (key in skippedKeys){
+                return
+            }
+
+            if (typeof value == 'function'){
+                config[key] = value.bind(config.scope)
+            }
+        })
+    }
+    var helper = new Helper(config)
+
+    helper.initDrag(event)
+
+    return helper
+}
+
+
+//////////////////
+// WEBPACK FOOTER
+// ./~/drag-helper/index.js
+// module id = 2069
+// module chunks = 4

509bba0_unpacked_with_node_modules/~/drag-helper/utils/once.js

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+'use once'
+
+module.exports = function once(fn, scope){
+
+    var called
+    var result
+
+    return function(){
+        if (called){
+            return result
+        }
+
+        called = true
+
+        return result = fn.apply(scope || this, arguments)
+    }
+}
+
+
+//////////////////
+// WEBPACK FOOTER
+// ./~/drag-helper/utils/once.js
+// module id = 2070
+// module chunks = 4