Initial commit

node_modules/react-draggable/lib/Draggable.js

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+// @flow
+import React from 'react';
+import PropTypes from 'prop-types';
+import ReactDOM from 'react-dom';
+import classNames from 'classnames';
+import {createCSSTransform, createSVGTransform} from './utils/domFns';
+import {canDragX, canDragY, createDraggableData, getBoundPosition} from './utils/positionFns';
+import {dontSetMe} from './utils/shims';
+import DraggableCore from './DraggableCore';
+import type {ControlPosition, DraggableBounds, DraggableCoreProps} from './DraggableCore';
+import log from './utils/log';
+import type {DraggableEventHandler} from './utils/types';
+import type {Element as ReactElement} from 'react';
+
+type DraggableState = {
+  dragging: boolean,
+  dragged: boolean,
+  x: number, y: number,
+  slackX: number, slackY: number,
+  isElementSVG: boolean
+};
+
+export type DraggableProps = {
+  ...$Exact<DraggableCoreProps>,
+  axis: 'both' | 'x' | 'y' | 'none',
+  bounds: DraggableBounds | string | false,
+  defaultClassName: string,
+  defaultClassNameDragging: string,
+  defaultClassNameDragged: string,
+  defaultPosition: ControlPosition,
+  position: ControlPosition,
+};
+
+//
+// Define <Draggable>
+//
+
+export default class Draggable extends React.Component<DraggableProps, DraggableState> {
+
+  static displayName = 'Draggable';
+
+  static propTypes = {
+    // Accepts all props <DraggableCore> accepts.
+    ...DraggableCore.propTypes,
+
+    /**
+     * `axis` determines which axis the draggable can move.
+     *
+     *  Note that all callbacks will still return data as normal. This only
+     *  controls flushing to the DOM.
+     *
+     * 'both' allows movement horizontally and vertically.
+     * 'x' limits movement to horizontal axis.
+     * 'y' limits movement to vertical axis.
+     * 'none' limits all movement.
+     *
+     * Defaults to 'both'.
+     */
+    axis: PropTypes.oneOf(['both', 'x', 'y', 'none']),
+
+    /**
+     * `bounds` determines the range of movement available to the element.
+     * Available values are:
+     *
+     * 'parent' restricts movement within the Draggable's parent node.
+     *
+     * Alternatively, pass an object with the following properties, all of which are optional:
+     *
+     * {left: LEFT_BOUND, right: RIGHT_BOUND, bottom: BOTTOM_BOUND, top: TOP_BOUND}
+     *
+     * All values are in px.
+     *
+     * Example:
+     *
+     * ```jsx
+     *   let App = React.createClass({
+     *       render: function () {
+     *         return (
+     *            <Draggable bounds={{right: 300, bottom: 300}}>
+     *              <div>Content</div>
+     *           </Draggable>
+     *         );
+     *       }
+     *   });
+     * ```
+     */
+    bounds: PropTypes.oneOfType([
+      PropTypes.shape({
+        left: PropTypes.number,
+        right: PropTypes.number,
+        top: PropTypes.number,
+        bottom: PropTypes.number
+      }),
+      PropTypes.string,
+      PropTypes.oneOf([false])
+    ]),
+
+    defaultClassName: PropTypes.string,
+    defaultClassNameDragging: PropTypes.string,
+    defaultClassNameDragged: PropTypes.string,
+
+    /**
+     * `defaultPosition` specifies the x and y that the dragged item should start at
+     *
+     * Example:
+     *
+     * ```jsx
+     *      let App = React.createClass({
+     *          render: function () {
+     *              return (
+     *                  <Draggable defaultPosition={{x: 25, y: 25}}>
+     *                      <div>I start with transformX: 25px and transformY: 25px;</div>
+     *                  </Draggable>
+     *              );
+     *          }
+     *      });
+     * ```
+     */
+    defaultPosition: PropTypes.shape({
+      x: PropTypes.number,
+      y: PropTypes.number
+    }),
+
+    /**
+     * `position`, if present, defines the current position of the element.
+     *
+     *  This is similar to how form elements in React work - if no `position` is supplied, the component
+     *  is uncontrolled.
+     *
+     * Example:
+     *
+     * ```jsx
+     *      let App = React.createClass({
+     *          render: function () {
+     *              return (
+     *                  <Draggable position={{x: 25, y: 25}}>
+     *                      <div>I start with transformX: 25px and transformY: 25px;</div>
+     *                  </Draggable>
+     *              );
+     *          }
+     *      });
+     * ```
+     */
+    position: PropTypes.shape({
+      x: PropTypes.number,
+      y: PropTypes.number
+    }),
+
+    /**
+     * These properties should be defined on the child, not here.
+     */
+    className: dontSetMe,
+    style: dontSetMe,
+    transform: dontSetMe
+  };
+
+  static defaultProps = {
+    ...DraggableCore.defaultProps,
+    axis: 'both',
+    bounds: false,
+    defaultClassName: 'react-draggable',
+    defaultClassNameDragging: 'react-draggable-dragging',
+    defaultClassNameDragged: 'react-draggable-dragged',
+    defaultPosition: {x: 0, y: 0},
+    position: null
+  };
+
+  constructor(props: DraggableProps) {
+    super(props);
+
+    this.state = {
+      // Whether or not we are currently dragging.
+      dragging: false,
+
+      // Whether or not we have been dragged before.
+      dragged: false,
+
+      // Current transform x and y.
+      x: props.position ? props.position.x : props.defaultPosition.x,
+      y: props.position ? props.position.y : props.defaultPosition.y,
+
+      // Used for compensating for out-of-bounds drags
+      slackX: 0, slackY: 0,
+
+      // Can only determine if SVG after mounting
+      isElementSVG: false
+    };
+  }
+
+  componentWillMount() {
+    if (this.props.position && !(this.props.onDrag || this.props.onStop)) {
+      // eslint-disable-next-line
+      console.warn('A `position` was applied to this <Draggable>, without drag handlers. This will make this ' +
+        'component effectively undraggable. Please attach `onDrag` or `onStop` handlers so you can adjust the ' +
+        '`position` of this element.');
+    }
+  }
+
+  componentDidMount() {
+    // Check to see if the element passed is an instanceof SVGElement
+    if(typeof window.SVGElement !== 'undefined' && ReactDOM.findDOMNode(this) instanceof window.SVGElement) {
+      this.setState({ isElementSVG: true });
+    }
+  }
+
+  componentWillReceiveProps(nextProps: Object) {
+    // Set x/y if position has changed
+    if (nextProps.position &&
+        (!this.props.position ||
+          nextProps.position.x !== this.props.position.x ||
+          nextProps.position.y !== this.props.position.y
+        )
+      ) {
+      this.setState({ x: nextProps.position.x, y: nextProps.position.y });
+    }
+  }
+
+  componentWillUnmount() {
+    this.setState({dragging: false}); // prevents invariant if unmounted while dragging
+  }
+
+  onDragStart: DraggableEventHandler = (e, coreData) => {
+    log('Draggable: onDragStart: %j', coreData);
+
+    // Short-circuit if user's callback killed it.
+    const shouldStart = this.props.onStart(e, createDraggableData(this, coreData));
+    // Kills start event on core as well, so move handlers are never bound.
+    if (shouldStart === false) return false;
+
+    this.setState({dragging: true, dragged: true});
+  };
+
+  onDrag: DraggableEventHandler = (e, coreData) => {
+    if (!this.state.dragging) return false;
+    log('Draggable: onDrag: %j', coreData);
+
+    const uiData = createDraggableData(this, coreData);
+
+    const newState: $Shape<DraggableState> = {
+      x: uiData.x,
+      y: uiData.y
+    };
+
+    // Keep within bounds.
+    if (this.props.bounds) {
+      // Save original x and y.
+      const {x, y} = newState;
+
+      // Add slack to the values used to calculate bound position. This will ensure that if
+      // we start removing slack, the element won't react to it right away until it's been
+      // completely removed.
+      newState.x += this.state.slackX;
+      newState.y += this.state.slackY;
+
+      // Get bound position. This will ceil/floor the x and y within the boundaries.
+      const [newStateX, newStateY] = getBoundPosition(this, newState.x, newState.y);
+      newState.x = newStateX;
+      newState.y = newStateY;
+
+      // Recalculate slack by noting how much was shaved by the boundPosition handler.
+      newState.slackX = this.state.slackX + (x - newState.x);
+      newState.slackY = this.state.slackY + (y - newState.y);
+
+      // Update the event we fire to reflect what really happened after bounds took effect.
+      uiData.x = newState.x;
+      uiData.y = newState.y;
+      uiData.deltaX = newState.x - this.state.x;
+      uiData.deltaY = newState.y - this.state.y;
+    }
+
+    // Short-circuit if user's callback killed it.
+    const shouldUpdate = this.props.onDrag(e, uiData);
+    if (shouldUpdate === false) return false;
+
+    this.setState(newState);
+  };
+
+  onDragStop: DraggableEventHandler = (e, coreData) => {
+    if (!this.state.dragging) return false;
+
+    // Short-circuit if user's callback killed it.
+    const shouldStop = this.props.onStop(e, createDraggableData(this, coreData));
+    if (shouldStop === false) return false;
+
+    log('Draggable: onDragStop: %j', coreData);
+
+    const newState: $Shape<DraggableState> = {
+      dragging: false,
+      slackX: 0,
+      slackY: 0
+    };
+
+    // If this is a controlled component, the result of this operation will be to
+    // revert back to the old position. We expect a handler on `onDragStop`, at the least.
+    const controlled = Boolean(this.props.position);
+    if (controlled) {
+      const {x, y} = this.props.position;
+      newState.x = x;
+      newState.y = y;
+    }
+
+    this.setState(newState);
+  };
+
+  render(): ReactElement<any> {
+    let style = {}, svgTransform = null;
+
+    // If this is controlled, we don't want to move it - unless it's dragging.
+    const controlled = Boolean(this.props.position);
+    const draggable = !controlled || this.state.dragging;
+
+    const position = this.props.position || this.props.defaultPosition;
+    const transformOpts = {
+      // Set left if horizontal drag is enabled
+      x: canDragX(this) && draggable ?
+        this.state.x :
+        position.x,
+
+      // Set top if vertical drag is enabled
+      y: canDragY(this) && draggable ?
+        this.state.y :
+        position.y
+    };
+
+    // If this element was SVG, we use the `transform` attribute.
+    if (this.state.isElementSVG) {
+      svgTransform = createSVGTransform(transformOpts);
+    } else {
+      // Add a CSS transform to move the element around. This allows us to move the element around
+      // without worrying about whether or not it is relatively or absolutely positioned.
+      // If the item you are dragging already has a transform set, wrap it in a <span> so <Draggable>
+      // has a clean slate.
+      style = createCSSTransform(transformOpts);
+    }
+
+    const {
+      defaultClassName,
+      defaultClassNameDragging,
+      defaultClassNameDragged
+    } = this.props;
+
+    const children = React.Children.only(this.props.children);
+
+    // Mark with class while dragging
+    const className = classNames((children.props.className || ''), defaultClassName, {
+      [defaultClassNameDragging]: this.state.dragging,
+      [defaultClassNameDragged]: this.state.dragged
+    });
+
+    // Reuse the child provided
+    // This makes it flexible to use whatever element is wanted (div, ul, etc)
+    return (
+      <DraggableCore {...this.props} onStart={this.onDragStart} onDrag={this.onDrag} onStop={this.onDragStop}>
+        {React.cloneElement(children, {
+          className: className,
+          style: {...children.props.style, ...style},
+          transform: svgTransform
+        })}
+      </DraggableCore>
+    );
+  }
+}

node_modules/react-draggable/lib/DraggableCore.js

@@ -0,0 +1,415 @@
+// @flow
+import React from 'react';
+import PropTypes from 'prop-types';
+import ReactDOM from 'react-dom';
+import {matchesSelectorAndParentsTo, addEvent, removeEvent, addUserSelectStyles, getTouchIdentifier,
+        removeUserSelectStyles, styleHacks} from './utils/domFns';
+import {createCoreData, getControlPosition, snapToGrid} from './utils/positionFns';
+import {dontSetMe} from './utils/shims';
+import log from './utils/log';
+
+import type {EventHandler, MouseTouchEvent} from './utils/types';
+import type {Element as ReactElement} from 'react';
+
+// Simple abstraction for dragging events names.
+const eventsFor = {
+  touch: {
+    start: 'touchstart',
+    move: 'touchmove',
+    stop: 'touchend'
+  },
+  mouse: {
+    start: 'mousedown',
+    move: 'mousemove',
+    stop: 'mouseup'
+  }
+};
+
+// Default to mouse events.
+let dragEventFor = eventsFor.mouse;
+
+type DraggableCoreState = {
+  dragging: boolean,
+  lastX: number,
+  lastY: number,
+  touchIdentifier: ?number
+};
+
+export type DraggableBounds = {
+  left: number,
+  right: number,
+  top: number,
+  bottom: number,
+};
+
+export type DraggableData = {
+  node: HTMLElement,
+  x: number, y: number,
+  deltaX: number, deltaY: number,
+  lastX: number, lastY: number,
+};
+
+export type DraggableEventHandler = (e: MouseEvent, data: DraggableData) => void;
+
+export type ControlPosition = {x: number, y: number};
+
+export type DraggableCoreProps = {
+  allowAnyClick: boolean,
+  cancel: string,
+  children: ReactElement<any>,
+  disabled: boolean,
+  enableUserSelectHack: boolean,
+  offsetParent: HTMLElement,
+  grid: [number, number],
+  handle: string,
+  onStart: DraggableEventHandler,
+  onDrag: DraggableEventHandler,
+  onStop: DraggableEventHandler,
+  onMouseDown: (e: MouseEvent) => void,
+};
+
+//
+// Define <DraggableCore>.
+//
+// <DraggableCore> is for advanced usage of <Draggable>. It maintains minimal internal state so it can
+// work well with libraries that require more control over the element.
+//
+
+export default class DraggableCore extends React.Component<DraggableCoreProps, DraggableCoreState> {
+
+  static displayName = 'DraggableCore';
+
+  static propTypes = {
+    /**
+     * `allowAnyClick` allows dragging using any mouse button.
+     * By default, we only accept the left button.
+     *
+     * Defaults to `false`.
+     */
+    allowAnyClick: PropTypes.bool,
+
+    /**
+     * `disabled`, if true, stops the <Draggable> from dragging. All handlers,
+     * with the exception of `onMouseDown`, will not fire.
+     */
+    disabled: PropTypes.bool,
+
+    /**
+     * By default, we add 'user-select:none' attributes to the document body
+     * to prevent ugly text selection during drag. If this is causing problems
+     * for your app, set this to `false`.
+     */
+    enableUserSelectHack: PropTypes.bool,
+
+    /**
+     * `offsetParent`, if set, uses the passed DOM node to compute drag offsets
+     * instead of using the parent node.
+     */
+    offsetParent: function(props: DraggableCoreProps, propName: $Keys<DraggableCoreProps>) {
+      if (process.browser === true && props[propName] && props[propName].nodeType !== 1) {
+        throw new Error('Draggable\'s offsetParent must be a DOM Node.');
+      }
+    },
+
+    /**
+     * `grid` specifies the x and y that dragging should snap to.
+     */
+    grid: PropTypes.arrayOf(PropTypes.number),
+
+    /**
+     * `handle` specifies a selector to be used as the handle that initiates drag.
+     *
+     * Example:
+     *
+     * ```jsx
+     *   let App = React.createClass({
+     *       render: function () {
+     *         return (
+     *            <Draggable handle=".handle">
+     *              <div>
+     *                  <div className="handle">Click me to drag</div>
+     *                  <div>This is some other content</div>
+     *              </div>
+     *           </Draggable>
+     *         );
+     *       }
+     *   });
+     * ```
+     */
+    handle: PropTypes.string,
+
+    /**
+     * `cancel` specifies a selector to be used to prevent drag initialization.
+     *
+     * Example:
+     *
+     * ```jsx
+     *   let App = React.createClass({
+     *       render: function () {
+     *           return(
+     *               <Draggable cancel=".cancel">
+     *                   <div>
+     *                     <div className="cancel">You can't drag from here</div>
+     *                     <div>Dragging here works fine</div>
+     *                   </div>
+     *               </Draggable>
+     *           );
+     *       }
+     *   });
+     * ```
+     */
+    cancel: PropTypes.string,
+
+    /**
+     * Called when dragging starts.
+     * If this function returns the boolean false, dragging will be canceled.
+     */
+    onStart: PropTypes.func,
+
+    /**
+     * Called while dragging.
+     * If this function returns the boolean false, dragging will be canceled.
+     */
+    onDrag: PropTypes.func,
+
+    /**
+     * Called when dragging stops.
+     * If this function returns the boolean false, the drag will remain active.
+     */
+    onStop: PropTypes.func,
+
+    /**
+     * A workaround option which can be passed if onMouseDown needs to be accessed,
+     * since it'll always be blocked (as there is internal use of onMouseDown)
+     */
+    onMouseDown: PropTypes.func,
+
+    /**
+     * These properties should be defined on the child, not here.
+     */
+    className: dontSetMe,
+    style: dontSetMe,
+    transform: dontSetMe
+  };
+
+  static defaultProps = {
+    allowAnyClick: false, // by default only accept left click
+    cancel: null,
+    disabled: false,
+    enableUserSelectHack: true,
+    offsetParent: null,
+    handle: null,
+    grid: null,
+    transform: null,
+    onStart: function(){},
+    onDrag: function(){},
+    onStop: function(){},
+    onMouseDown: function(){}
+  };
+
+  state = {
+    dragging: false,
+    // Used while dragging to determine deltas.
+    lastX: NaN, lastY: NaN,
+    touchIdentifier: null
+  };
+
+  componentWillUnmount() {
+    // Remove any leftover event handlers. Remove both touch and mouse handlers in case
+    // some browser quirk caused a touch event to fire during a mouse move, or vice versa.
+    const thisNode = ReactDOM.findDOMNode(this);
+    if (thisNode) {
+      const {ownerDocument} = thisNode;
+      removeEvent(ownerDocument, eventsFor.mouse.move, this.handleDrag);
+      removeEvent(ownerDocument, eventsFor.touch.move, this.handleDrag);
+      removeEvent(ownerDocument, eventsFor.mouse.stop, this.handleDragStop);
+      removeEvent(ownerDocument, eventsFor.touch.stop, this.handleDragStop);
+      if (this.props.enableUserSelectHack) removeUserSelectStyles(ownerDocument);
+    }
+  }
+
+  handleDragStart: EventHandler<MouseTouchEvent> = (e) => {
+    // Make it possible to attach event handlers on top of this one.
+    this.props.onMouseDown(e);
+
+    // Only accept left-clicks.
+    if (!this.props.allowAnyClick && typeof e.button === 'number' && e.button !== 0) return false;
+
+    // Get nodes. Be sure to grab relative document (could be iframed)
+    const thisNode = ReactDOM.findDOMNode(this);
+    if (!thisNode || !thisNode.ownerDocument || !thisNode.ownerDocument.body) {
+      throw new Error('<DraggableCore> not mounted on DragStart!');
+    }
+    const {ownerDocument} = thisNode;
+
+    // Short circuit if handle or cancel prop was provided and selector doesn't match.
+    if (this.props.disabled ||
+      (!(e.target instanceof ownerDocument.defaultView.Node)) ||
+      (this.props.handle && !matchesSelectorAndParentsTo(e.target, this.props.handle, thisNode)) ||
+      (this.props.cancel && matchesSelectorAndParentsTo(e.target, this.props.cancel, thisNode))) {
+      return;
+    }
+
+    // Set touch identifier in component state if this is a touch event. This allows us to
+    // distinguish between individual touches on multitouch screens by identifying which
+    // touchpoint was set to this element.
+    const touchIdentifier = getTouchIdentifier(e);
+    this.setState({touchIdentifier});
+
+    // Get the current drag point from the event. This is used as the offset.
+    const position = getControlPosition(e, touchIdentifier, this);
+    if (position == null) return; // not possible but satisfies flow
+    const {x, y} = position;
+
+    // Create an event object with all the data parents need to make a decision here.
+    const coreEvent = createCoreData(this, x, y);
+
+    log('DraggableCore: handleDragStart: %j', coreEvent);
+
+    // Call event handler. If it returns explicit false, cancel.
+    log('calling', this.props.onStart);
+    const shouldUpdate = this.props.onStart(e, coreEvent);
+    if (shouldUpdate === false) return;
+
+    // Add a style to the body to disable user-select. This prevents text from
+    // being selected all over the page.
+    if (this.props.enableUserSelectHack) addUserSelectStyles(ownerDocument);
+
+    // Initiate dragging. Set the current x and y as offsets
+    // so we know how much we've moved during the drag. This allows us
+    // to drag elements around even if they have been moved, without issue.
+    this.setState({
+      dragging: true,
+
+      lastX: x,
+      lastY: y
+    });
+
+    // Add events to the document directly so we catch when the user's mouse/touch moves outside of
+    // this element. We use different events depending on whether or not we have detected that this
+    // is a touch-capable device.
+    addEvent(ownerDocument, dragEventFor.move, this.handleDrag);
+    addEvent(ownerDocument, dragEventFor.stop, this.handleDragStop);
+  };
+
+  handleDrag: EventHandler<MouseTouchEvent> = (e) => {
+
+    // Prevent scrolling on mobile devices, like ipad/iphone.
+    if (e.type === 'touchmove') e.preventDefault();
+
+    // Get the current drag point from the event. This is used as the offset.
+    const position = getControlPosition(e, this.state.touchIdentifier, this);
+    if (position == null) return;
+    let {x, y} = position;
+
+    // Snap to grid if prop has been provided
+    if (Array.isArray(this.props.grid)) {
+      let deltaX = x - this.state.lastX, deltaY = y - this.state.lastY;
+      [deltaX, deltaY] = snapToGrid(this.props.grid, deltaX, deltaY);
+      if (!deltaX && !deltaY) return; // skip useless drag
+      x = this.state.lastX + deltaX, y = this.state.lastY + deltaY;
+    }
+
+    const coreEvent = createCoreData(this, x, y);
+
+    log('DraggableCore: handleDrag: %j', coreEvent);
+
+    // Call event handler. If it returns explicit false, trigger end.
+    const shouldUpdate = this.props.onDrag(e, coreEvent);
+    if (shouldUpdate === false) {
+      try {
+        // $FlowIgnore
+        this.handleDragStop(new MouseEvent('mouseup'));
+      } catch (err) {
+        // Old browsers
+        const event = ((document.createEvent('MouseEvents'): any): MouseTouchEvent);
+        // I see why this insanity was deprecated
+        // $FlowIgnore
+        event.initMouseEvent('mouseup', true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
+        this.handleDragStop(event);
+      }
+      return;
+    }
+
+    this.setState({
+      lastX: x,
+      lastY: y
+    });
+  };
+
+  handleDragStop: EventHandler<MouseTouchEvent> = (e) => {
+    if (!this.state.dragging) return;
+
+    const position = getControlPosition(e, this.state.touchIdentifier, this);
+    if (position == null) return;
+    const {x, y} = position;
+    const coreEvent = createCoreData(this, x, y);
+
+    const thisNode = ReactDOM.findDOMNode(this);
+    if (thisNode) {
+      // Remove user-select hack
+      if (this.props.enableUserSelectHack) removeUserSelectStyles(thisNode.ownerDocument);
+    }
+
+    log('DraggableCore: handleDragStop: %j', coreEvent);
+
+    // Reset the el.
+    this.setState({
+      dragging: false,
+      lastX: NaN,
+      lastY: NaN
+    });
+
+    // Call event handler
+    this.props.onStop(e, coreEvent);
+
+    if (thisNode) {
+      // Remove event handlers
+      log('DraggableCore: Removing handlers');
+      removeEvent(thisNode.ownerDocument, dragEventFor.move, this.handleDrag);
+      removeEvent(thisNode.ownerDocument, dragEventFor.stop, this.handleDragStop);
+    }
+  };
+
+  onMouseDown: EventHandler<MouseTouchEvent> = (e) => {
+    dragEventFor = eventsFor.mouse; // on touchscreen laptops we could switch back to mouse
+
+    return this.handleDragStart(e);
+  };
+
+  onMouseUp: EventHandler<MouseTouchEvent> = (e) => {
+    dragEventFor = eventsFor.mouse;
+
+    return this.handleDragStop(e);
+  };
+
+  // Same as onMouseDown (start drag), but now consider this a touch device.
+  onTouchStart: EventHandler<MouseTouchEvent> = (e) => {
+    // We're on a touch device now, so change the event handlers
+    dragEventFor = eventsFor.touch;
+
+    return this.handleDragStart(e);
+  };
+
+  onTouchEnd: EventHandler<MouseTouchEvent> = (e) => {
+    // We're on a touch device now, so change the event handlers
+    dragEventFor = eventsFor.touch;
+
+    return this.handleDragStop(e);
+  };
+
+  render() {
+    // Reuse the child provided
+    // This makes it flexible to use whatever element is wanted (div, ul, etc)
+    return React.cloneElement(React.Children.only(this.props.children), {
+      style: styleHacks(this.props.children.props.style),
+
+      // Note: mouseMove handler is attached to document so it will still function
+      // when the user drags quickly and leaves the bounds of the element.
+      onMouseDown: this.onMouseDown,
+      onTouchStart: this.onTouchStart,
+      onMouseUp: this.onMouseUp,
+      onTouchEnd: this.onTouchEnd
+    });
+  }
+}

node_modules/react-draggable/lib/utils/domFns.js

@@ -0,0 +1,184 @@
+// @flow
+import {findInArray, isFunction, int} from './shims';
+import browserPrefix, {browserPrefixToKey} from './getPrefix';
+
+import type {ControlPosition, MouseTouchEvent} from './types';
+
+let matchesSelectorFunc = '';
+export function matchesSelector(el: Node, selector: string): boolean {
+  if (!matchesSelectorFunc) {
+    matchesSelectorFunc = findInArray([
+      'matches',
+      'webkitMatchesSelector',
+      'mozMatchesSelector',
+      'msMatchesSelector',
+      'oMatchesSelector'
+    ], function(method){
+      // $FlowIgnore: Doesn't think elements are indexable
+      return isFunction(el[method]);
+    });
+  }
+
+  // Might not be found entirely (not an Element?) - in that case, bail
+  // $FlowIgnore: Doesn't think elements are indexable
+  if (!isFunction(el[matchesSelectorFunc])) return false;
+
+  // $FlowIgnore: Doesn't think elements are indexable
+  return el[matchesSelectorFunc](selector);
+}
+
+// Works up the tree to the draggable itself attempting to match selector.
+export function matchesSelectorAndParentsTo(el: Node, selector: string, baseNode: Node): boolean {
+  let node = el;
+  do {
+    if (matchesSelector(node, selector)) return true;
+    if (node === baseNode) return false;
+    node = node.parentNode;
+  } while (node);
+
+  return false;
+}
+
+export function addEvent(el: ?Node, event: string, handler: Function): void {
+  if (!el) { return; }
+  if (el.attachEvent) {
+    el.attachEvent('on' + event, handler);
+  } else if (el.addEventListener) {
+    el.addEventListener(event, handler, true);
+  } else {
+    // $FlowIgnore: Doesn't think elements are indexable
+    el['on' + event] = handler;
+  }
+}
+
+export function removeEvent(el: ?Node, event: string, handler: Function): void {
+  if (!el) { return; }
+  if (el.detachEvent) {
+    el.detachEvent('on' + event, handler);
+  } else if (el.removeEventListener) {
+    el.removeEventListener(event, handler, true);
+  } else {
+    // $FlowIgnore: Doesn't think elements are indexable
+    el['on' + event] = null;
+  }
+}
+
+export function outerHeight(node: HTMLElement): number {
+  // This is deliberately excluding margin for our calculations, since we are using
+  // offsetTop which is including margin. See getBoundPosition
+  let height = node.clientHeight;
+  const computedStyle = node.ownerDocument.defaultView.getComputedStyle(node);
+  height += int(computedStyle.borderTopWidth);
+  height += int(computedStyle.borderBottomWidth);
+  return height;
+}
+
+export function outerWidth(node: HTMLElement): number {
+  // This is deliberately excluding margin for our calculations, since we are using
+  // offsetLeft which is including margin. See getBoundPosition
+  let width = node.clientWidth;
+  const computedStyle = node.ownerDocument.defaultView.getComputedStyle(node);
+  width += int(computedStyle.borderLeftWidth);
+  width += int(computedStyle.borderRightWidth);
+  return width;
+}
+export function innerHeight(node: HTMLElement): number {
+  let height = node.clientHeight;
+  const computedStyle = node.ownerDocument.defaultView.getComputedStyle(node);
+  height -= int(computedStyle.paddingTop);
+  height -= int(computedStyle.paddingBottom);
+  return height;
+}
+
+export function innerWidth(node: HTMLElement): number {
+  let width = node.clientWidth;
+  const computedStyle = node.ownerDocument.defaultView.getComputedStyle(node);
+  width -= int(computedStyle.paddingLeft);
+  width -= int(computedStyle.paddingRight);
+  return width;
+}
+
+// Get from offsetParent
+export function offsetXYFromParent(evt: {clientX: number, clientY: number}, offsetParent: HTMLElement): ControlPosition {
+  const isBody = offsetParent === offsetParent.ownerDocument.body;
+  const offsetParentRect = isBody ? {left: 0, top: 0} : offsetParent.getBoundingClientRect();
+
+  const x = evt.clientX + offsetParent.scrollLeft - offsetParentRect.left;
+  const y = evt.clientY + offsetParent.scrollTop - offsetParentRect.top;
+
+  return {x, y};
+}
+
+export function createCSSTransform({x, y}: {x: number, y: number}): Object {
+  // Replace unitless items with px
+  return {[browserPrefixToKey('transform', browserPrefix)]: 'translate(' + x + 'px,' + y + 'px)'};
+}
+
+export function createSVGTransform({x, y}: {x: number, y: number}): string {
+  return 'translate(' + x + ',' + y + ')';
+}
+
+export function getTouch(e: MouseTouchEvent, identifier: number): ?{clientX: number, clientY: number} {
+  return (e.targetTouches && findInArray(e.targetTouches, t => identifier === t.identifier)) ||
+         (e.changedTouches && findInArray(e.changedTouches, t => identifier === t.identifier));
+}
+
+export function getTouchIdentifier(e: MouseTouchEvent): ?number {
+  if (e.targetTouches && e.targetTouches[0]) return e.targetTouches[0].identifier;
+  if (e.changedTouches && e.changedTouches[0]) return e.changedTouches[0].identifier;
+}
+
+// User-select Hacks:
+//
+// Useful for preventing blue highlights all over everything when dragging.
+
+// Note we're passing `document` b/c we could be iframed
+export function addUserSelectStyles(doc: ?Document) {
+  if (!doc) return;
+  let styleEl = doc.getElementById('react-draggable-style-el');
+  if (!styleEl) {
+    styleEl = doc.createElement('style');
+    styleEl.type = 'text/css';
+    styleEl.id = 'react-draggable-style-el';
+    styleEl.innerHTML = '.react-draggable-transparent-selection *::-moz-selection {background: transparent;}\n';
+    styleEl.innerHTML += '.react-draggable-transparent-selection *::selection {background: transparent;}\n';
+    doc.getElementsByTagName('head')[0].appendChild(styleEl);
+  }
+  if (doc.body) addClassName(doc.body, 'react-draggable-transparent-selection');
+}
+
+export function removeUserSelectStyles(doc: ?Document) {
+  try {
+    if (doc && doc.body) removeClassName(doc.body, 'react-draggable-transparent-selection');
+    window.getSelection().removeAllRanges();  // remove selection caused by scroll
+  } catch (e) {
+    // probably IE
+  }
+}
+
+export function styleHacks(childStyle: Object = {}): Object {
+  // Workaround IE pointer events; see #51
+  // https://github.com/mzabriskie/react-draggable/issues/51#issuecomment-103488278
+  return {
+    touchAction: 'none',
+    ...childStyle
+  };
+}
+
+export function addClassName(el: HTMLElement, className: string) {
+  if (el.classList) {
+    el.classList.add(className);
+  } else {
+    if (!el.className.match(new RegExp(`(?:^|\\s)${className}(?!\\S)`))) {
+      el.className += ` ${className}`;
+    }
+  }
+}
+
+export function removeClassName(el: HTMLElement, className: string) {
+  if (el.classList) {
+    el.classList.remove(className);
+  } else {
+    el.className = el.className.replace(new RegExp(`(?:^|\\s)${className}(?!\\S)`, 'g'), '');
+  }
+}

node_modules/react-draggable/lib/utils/getPrefix.js

@@ -0,0 +1,47 @@
+// @flow
+const prefixes = ['Moz', 'Webkit', 'O', 'ms'];
+export function getPrefix(prop: string='transform'): string {
+  // Checking specifically for 'window.document' is for pseudo-browser server-side
+  // environments that define 'window' as the global context.
+  // E.g. React-rails (see https://github.com/reactjs/react-rails/pull/84)
+  if (typeof window === 'undefined' || typeof window.document === 'undefined') return '';
+
+  const style = window.document.documentElement.style;
+
+  if (prop in style) return '';
+
+  for (let i = 0; i < prefixes.length; i++) {
+    if (browserPrefixToKey(prop, prefixes[i]) in style) return prefixes[i];
+  }
+
+  return '';
+}
+
+export function browserPrefixToKey(prop: string, prefix: string): string {
+  return prefix ? `${prefix}${kebabToTitleCase(prop)}` : prop;
+}
+
+export function browserPrefixToStyle(prop: string, prefix: string): string {
+  return prefix ? `-${prefix.toLowerCase()}-${prop}` : prop;
+}
+
+function kebabToTitleCase(str: string): string {
+  let out = '';
+  let shouldCapitalize = true;
+  for (let i = 0; i < str.length; i++) {
+    if (shouldCapitalize) {
+      out += str[i].toUpperCase();
+      shouldCapitalize = false;
+    } else if (str[i] === '-') {
+      shouldCapitalize = true;
+    } else {
+      out += str[i];
+    }
+  }
+  return out;
+}
+
+// Default export is the prefix itself, like 'Moz', 'Webkit', etc
+// Note that you may have to re-test for certain things; for instance, Chrome 50
+// can handle unprefixed `transform`, but not unprefixed `user-select`
+export default getPrefix();

node_modules/react-draggable/lib/utils/log.js

@@ -0,0 +1,5 @@
+// @flow
+/*eslint no-console:0*/
+export default function log(...args: any) {
+  if (process.env.DRAGGABLE_DEBUG) console.log(...args);
+}

node_modules/react-draggable/lib/utils/positionFns.js

@@ -0,0 +1,134 @@
+// @flow
+import {isNum, int} from './shims';
+import ReactDOM from 'react-dom';
+import {getTouch, innerWidth, innerHeight, offsetXYFromParent, outerWidth, outerHeight} from './domFns';
+
+import type Draggable from '../Draggable';
+import type {Bounds, ControlPosition, DraggableData, MouseTouchEvent} from './types';
+import type DraggableCore from '../DraggableCore';
+
+export function getBoundPosition(draggable: Draggable, x: number, y: number): [number, number] {
+  // If no bounds, short-circuit and move on
+  if (!draggable.props.bounds) return [x, y];
+
+  // Clone new bounds
+  let {bounds} = draggable.props;
+  bounds = typeof bounds === 'string' ? bounds : cloneBounds(bounds);
+  const node = findDOMNode(draggable);
+
+  if (typeof bounds === 'string') {
+    const {ownerDocument} = node;
+    const ownerWindow = ownerDocument.defaultView;
+    let boundNode;
+    if (bounds === 'parent') {
+      boundNode = node.parentNode;
+    } else {
+      boundNode = ownerDocument.querySelector(bounds);
+    }
+    if (!(boundNode instanceof HTMLElement)) {
+      throw new Error('Bounds selector "' + bounds + '" could not find an element.');
+    }
+    const nodeStyle = ownerWindow.getComputedStyle(node);
+    const boundNodeStyle = ownerWindow.getComputedStyle(boundNode);
+    // Compute bounds. This is a pain with padding and offsets but this gets it exactly right.
+    bounds = {
+      left: -node.offsetLeft + int(boundNodeStyle.paddingLeft) + int(nodeStyle.marginLeft),
+      top: -node.offsetTop + int(boundNodeStyle.paddingTop) + int(nodeStyle.marginTop),
+      right: innerWidth(boundNode) - outerWidth(node) - node.offsetLeft +
+        int(boundNodeStyle.paddingRight) - int(nodeStyle.marginRight),
+      bottom: innerHeight(boundNode) - outerHeight(node) - node.offsetTop +
+        int(boundNodeStyle.paddingBottom) - int(nodeStyle.marginBottom)
+    };
+  }
+
+  // Keep x and y below right and bottom limits...
+  if (isNum(bounds.right)) x = Math.min(x, bounds.right);
+  if (isNum(bounds.bottom)) y = Math.min(y, bounds.bottom);
+
+  // But above left and top limits.
+  if (isNum(bounds.left)) x = Math.max(x, bounds.left);
+  if (isNum(bounds.top)) y = Math.max(y, bounds.top);
+
+  return [x, y];
+}
+
+export function snapToGrid(grid: [number, number], pendingX: number, pendingY: number): [number, number] {
+  const x = Math.round(pendingX / grid[0]) * grid[0];
+  const y = Math.round(pendingY / grid[1]) * grid[1];
+  return [x, y];
+}
+
+export function canDragX(draggable: Draggable): boolean {
+  return draggable.props.axis === 'both' || draggable.props.axis === 'x';
+}
+
+export function canDragY(draggable: Draggable): boolean {
+  return draggable.props.axis === 'both' || draggable.props.axis === 'y';
+}
+
+// Get {x, y} positions from event.
+export function getControlPosition(e: MouseTouchEvent, touchIdentifier: ?number, draggableCore: DraggableCore): ?ControlPosition {
+  const touchObj = typeof touchIdentifier === 'number' ? getTouch(e, touchIdentifier) : null;
+  if (typeof touchIdentifier === 'number' && !touchObj) return null; // not the right touch
+  const node = findDOMNode(draggableCore);
+  // User can provide an offsetParent if desired.
+  const offsetParent = draggableCore.props.offsetParent || node.offsetParent || node.ownerDocument.body;
+  return offsetXYFromParent(touchObj || e, offsetParent);
+}
+
+// Create an data object exposed by <DraggableCore>'s events
+export function createCoreData(draggable: DraggableCore, x: number, y: number): DraggableData {
+  const state = draggable.state;
+  const isStart = !isNum(state.lastX);
+  const node = findDOMNode(draggable);
+
+  if (isStart) {
+    // If this is our first move, use the x and y as last coords.
+    return {
+      node,
+      deltaX: 0, deltaY: 0,
+      lastX: x, lastY: y,
+      x, y,
+    };
+  } else {
+    // Otherwise calculate proper values.
+    return {
+      node,
+      deltaX: x - state.lastX, deltaY: y - state.lastY,
+      lastX: state.lastX, lastY: state.lastY,
+      x, y,
+    };
+  }
+}
+
+// Create an data exposed by <Draggable>'s events
+export function createDraggableData(draggable: Draggable, coreData: DraggableData): DraggableData {
+  return {
+    node: coreData.node,
+    x: draggable.state.x + coreData.deltaX,
+    y: draggable.state.y + coreData.deltaY,
+    deltaX: coreData.deltaX,
+    deltaY: coreData.deltaY,
+    lastX: draggable.state.x,
+    lastY: draggable.state.y
+  };
+}
+
+// A lot faster than stringify/parse
+function cloneBounds(bounds: Bounds): Bounds {
+  return {
+    left: bounds.left,
+    top: bounds.top,
+    right: bounds.right,
+    bottom: bounds.bottom
+  };
+}
+
+function findDOMNode(draggable: Draggable | DraggableCore): HTMLElement {
+  const node = ReactDOM.findDOMNode(draggable);
+  if (!node) {
+    throw new Error('<DraggableCore>: Unmounted during event!');
+  }
+  // $FlowIgnore we can't assert on HTMLElement due to tests... FIXME
+  return node;
+}

node_modules/react-draggable/lib/utils/shims.js

@@ -0,0 +1,25 @@
+// @flow
+// @credits https://gist.github.com/rogozhnikoff/a43cfed27c41e4e68cdc
+export function findInArray(array: Array<any> | TouchList, callback: Function): any {
+  for (let i = 0, length = array.length; i < length; i++) {
+    if (callback.apply(callback, [array[i], i, array])) return array[i];
+  }
+}
+
+export function isFunction(func: any): boolean {
+  return typeof func === 'function' || Object.prototype.toString.call(func) === '[object Function]';
+}
+
+export function isNum(num: any): boolean {
+  return typeof num === 'number' && !isNaN(num);
+}
+
+export function int(a: string): number {
+  return parseInt(a, 10);
+}
+
+export function dontSetMe(props: Object, propName: string, componentName: string) {
+  if (props[propName]) {
+    return new Error(`Invalid prop ${propName} passed to ${componentName} - do not set this, set it on the child.`);
+  }
+}

node_modules/react-draggable/lib/utils/types.js

@@ -0,0 +1,29 @@
+// @flow
+
+// eslint-disable-next-line no-use-before-define
+export type DraggableEventHandler = (e: MouseEvent, data: DraggableData) => void | false;
+
+export type DraggableData = {
+  node: HTMLElement,
+  x: number, y: number,
+  deltaX: number, deltaY: number,
+  lastX: number, lastY: number
+};
+
+export type Bounds = {
+  left: number, top: number, right: number, bottom: number
+};
+export type ControlPosition = {x: number, y: number};
+export type EventHandler<T> = (e: T) => void | false;
+
+// Missing in Flow
+export class SVGElement extends HTMLElement {
+}
+
+// Missing targetTouches
+export class TouchEvent2 extends TouchEvent {
+  changedTouches: TouchList;
+  targetTouches: TouchList;
+}
+
+export type MouseTouchEvent = MouseEvent & TouchEvent2;