1 files changed, 122 insertions, 0 deletions
diff --git a/www/app/components/list_edit.js b/www/app/components/list_edit.js
new file mode 100644
index 0000000..0d557d2
--- /dev/null
+++ b/www/app/components/list_edit.js
@@ -0,0 +1,122 @@
+//
+// A simple list of items, with minus and plus buttons to add and remove
+// items.
+//
+
+import React from 'react'
+import {Button, ButtonGroup, ButtonToolbar, Glyphicon, FormControl} from 'react-bootstrap'
+
+const CONTAINER_CSS = {
+  display: "flex",
+  flexDirection: "column"
+}
+const SELECT_CSS = {
+  padding: "0px",
+  flex: "1 1 1000px",
+  overflowY: "scroll"
+}
+const OPTION_CSS = {
+  padding: "10px"
+}
+const TOOLBAR_CSS = {
+  paddingTop: "10px",
+  flex: "0 0 auto"
+}
+
+class ListEdit extends React.Component {
+
+  static get defaultProps() {return{
+    width: null,
+    items: [
+      'aaaaaaa',
+      'bbbbbbb',
+      'ccccccc'
+    ],
+    selected: null,
+    onRemove: null,
+    onAdd: null,
+  }}
+
+  constructor(props) {
+    super(props)
+    let index = 0
+    if (props.selected) {
+      index = props.items.indexOf(props.selected)
+    }
+    this.state = {
+      selected: index
+    }
+    this.click  = this.click.bind(this)
+    this.add    = this.add.bind(this)
+    this.remove = this.remove.bind(this)
+  }
+
+  setSelected(index) {
+    this.setState({
+      selected: index
+    })
+  }
+
+  click(e) {
+    let row = parseInt(e.target.value)
+    if (row >= 0) {
+      this.setState({selected: row})
+    }
+  }
+
+  add() {
+    if (this.props.onAdd) {
+      this.props.onAdd()
+    }
+  }
+
+  remove() {
+    if (this.state.selected >= 0 && this.props.onRemove) {
+      if (this.props.items.length == this.state.selected + 1) {
+        // if we remove the last item, set the selected item
+        // to the one right before it.
+        this.setState({selected: (this.state.selected - 1)})
+      }
+      this.props.onRemove(this.props.items[this.state.selected])
+    }
+  }
+
+  render() {
+    let options = null
+    if (this.props.items) {
+      options = this.props.items.map((item, i) => {
+        return <option style={OPTION_CSS} key={i} value={i}>{item}</option>
+      }, this)
+    }
+    return(
+      <div style={CONTAINER_CSS}>
+        <FormControl
+          value={this.state.selected}
+          style={SELECT_CSS} className="select-list"
+          componentClass="select" size="5" onChange={this.click}>
+          {options}
+        </FormControl>
+        <ButtonToolbar className="pull-right" style={TOOLBAR_CSS}>
+          <ButtonGroup>
+            <Button onClick={this.add}>
+              <Glyphicon glyph="plus" />
+            </Button>
+            <Button disabled={this.state.selected < 0} onClick={this.remove}>
+              <Glyphicon glyph="minus" />
+            </Button>
+          </ButtonGroup>
+        </ButtonToolbar>
+      </div>
+    )
+  }
+
+}
+
+ListEdit.propTypes = {
+  children: React.PropTypes.oneOfType([
+    React.PropTypes.element,
+    React.PropTypes.arrayOf(React.PropTypes.element)
+  ])
+}
+
+export default ListEdit