[added] Overlay component

Allows for custom overlays to be created seperate from the
OverlayTrigger

docs/examples/Overlay.js

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+
+const Example = React.createClass({
+  getInitialState(){
+    return { show: true };
+  },
+
+  toggle(){
+    this.setState({ show: !this.state.show });
+  },
+
+  render(){
+    const style = {
+      position: 'absolute',
+      backgroundColor: '#EEE',
+      border: '1px solid #CCC',
+      borderRadius: 3,
+      marginLeft: 5,
+      padding: 10
+    };
+
+    return (
+      <div style={{ height: 100, position: 'relative' }}>
+        <Button ref='target' onClick={this.toggle}>
+          I am an Overlay target
+        </Button>
+
+        <Overlay
+          show={this.state.show}
+          onHide={() => this.setState({ show: false })}
+          placement="right"
+          container={this}
+          target={ props => React.findDOMNode(this.refs.target)}
+        >
+          <div style={style}>
+            <strong>Holy guacamole!</strong> Check this info.
+          </div>
+        </Overlay>
+      </div>
+    );
+  }
+});
+
+React.render(<Example/>, mountNode);

src/ModalBody.js

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+import React from 'react';
+import classnames from 'classnames';
+
+class ModalBody extends React.Component {
+  render() {
+    return (
+      <div {...this.props} className={classnames(this.props.className, this.props.modalClassName)}>
+        {this.props.children}
+      </div>
+    );
+  }
+}
+
+ModalBody.propTypes = {
+  /**
+   * A css class applied to the Component
+   */
+  modalClassName: React.PropTypes.string
+};
+
+ModalBody.defaultProps = {
+  modalClassName: 'modal-body'
+};
+
+
+export default ModalBody;

src/ModalFooter.js

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+import React from 'react';
+import classnames from 'classnames';
+
+
+class ModalFooter extends React.Component {
+
+  render() {
+    return (
+      <div {...this.props} className={classnames(this.props.className, this.props.modalClassName)}>
+        {this.props.children}
+      </div>
+    );
+  }
+}
+
+ModalFooter.propTypes = {
+  /**
+   * A css class applied to the Component
+   */
+  modalClassName: React.PropTypes.string
+};
+
+ModalFooter.defaultProps = {
+  modalClassName: 'modal-footer'
+};
+
+export default ModalFooter;

src/ModalHeader.js

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+import React from 'react';
+import classnames from 'classnames';
+
+class ModalHeader extends React.Component {
+
+  render() {
+    return (
+      <div
+        {...this.props}
+        className={classnames(this.props.className, this.props.modalClassName)}
+      >
+        { this.props.closeButton &&
+          <button
+            className='close'
+            aria-label={this.props['aria-label'] || 'Close'}
+            onClick={this.props.onHide}
+            style={{ marginTop: -2 }}
+          >
+            <span aria-hidden="true">
+              &times;
+            </span>
+          </button>
+        }
+        { this.props.children }
+      </div>
+    );
+  }
+}
+
+//used in liue of parent contexts right now to auto wire the close button
+ModalHeader.__isModalHeader = true;
+
+ModalHeader.propTypes = {
+  /**
+   * A css class applied to the Component
+   */
+  modalClassName: React.PropTypes.string,
+  /**
+   * Specify whether the Component should contain a close button
+   */
+  closeButton: React.PropTypes.bool,
+  /**
+   * A Callback fired when the close button is clicked. If used directly inside a Modal component, the onHide will automatically
+   * be propagated up to the parent Modal `onHide`.
+   */
+  onHide: React.PropTypes.func
+};
+
+ModalHeader.defaultProps = {
+  modalClassName: 'modal-header',
+  closeButton: false
+};
+
+
+export default ModalHeader;

src/ModalTitle.js

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+import React from 'react';
+import classnames from 'classnames';
+
+class ModalTitle extends React.Component {
+
+  render() {
+    return (
+      <h4 {...this.props} className={classnames(this.props.className, 'modal-title')}>
+        { this.props.children }
+      </h4>
+    );
+  }
+}
+
+ModalTitle.propTypes = {
+  /**
+   * A css class applied to the Component
+   */
+  modalClassName: React.PropTypes.string
+};
+
+ModalTitle.defaultProps = {
+  modalClassName: 'modal-title'
+};
+
+export default ModalTitle;

src/Overlay.js

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+/*eslint-disable object-shorthand, react/prop-types */
+import React from 'react';
+import Portal from './Portal';
+import Position from './Position';
+import RootCloseWrapper from './RootCloseWrapper';
+
+class Overlay extends React.Component {
+
+  constructor(props, context){
+    super(props, context);
+  }
+
+  render(){
+    let {
+        container
+      , containerPadding
+      , target
+      , placement
+      , rootClose
+      , ...props } = this.props;
+
+    let positionedChild = (
+      <Position {...{ container, containerPadding, target, placement }}>
+        { this.props.children }
+      </Position>
+    );
+
+    if (rootClose) {
+      positionedChild = (
+        <RootCloseWrapper onRootClose={this.props.onHide}>
+          { positionedChild }
+        </RootCloseWrapper>
+      );
+    }
+
+    return (
+      <Portal container={container} rootClose={rootClose} onRootClose={this.props.onHide}>
+      { props.show &&
+          positionedChild
+      }
+      </Portal>
+    );
+  }
+}
+
+Overlay.propTypes = {
+  ...Portal.propTypes,
+  ...Position.propTypes,
+  /**
+   * Set the visibility of the Overlay
+   */
+  show: React.PropTypes.bool,
+  /**
+   * Specify whether the overlay should trigger onHide when the user clicks outside the overlay
+   */
+  rootClose: React.PropTypes.bool,
+  /**
+   * A Callback fired by the Overlay when it wishes to be hidden.
+   */
+  onHide: React.PropTypes.func
+};
+
+export default Overlay;