1 files changed, 130 insertions, 0 deletions
diff --git a/web/src/js/components/FlowView/Headers.jsx b/web/src/js/components/FlowView/Headers.jsx
new file mode 100644
index 00000000..880eeda1
--- /dev/null
+++ b/web/src/js/components/FlowView/Headers.jsx
@@ -0,0 +1,130 @@
+import React, { Component, PropTypes } from 'react'
+import ReactDOM from 'react-dom'
+import ValueEditor from '../ValueEditor'
+import { Key } from '../../utils.js'
+
+class HeaderEditor extends Component {
+
+    render() {
+        return <ValueEditor ref="input" {...this.props} onKeyDown={this.onKeyDown} inline/>
+    }
+
+    focus() {
+        ReactDOM.findDOMNode(this).focus()
+    }
+
+    onKeyDown(e) {
+        switch (e.keyCode) {
+            case Key.BACKSPACE:
+                var s = window.getSelection().getRangeAt(0)
+                if (s.startOffset === 0 && s.endOffset === 0) {
+                    this.props.onRemove(e)
+                }
+                break
+            case Key.TAB:
+                if (!e.shiftKey) {
+                    this.props.onTab(e)
+                }
+                break
+        }
+    }
+}
+
+export default class Headers extends Component {
+
+    static propTypes = {
+        onChange: PropTypes.func.isRequired,
+        message: PropTypes.object.isRequired,
+    }
+
+    onChange(row, col, val) {
+        const nextHeaders = _.cloneDeep(this.props.message.headers)
+
+        nextHeaders[row][col] = val
+
+        if (!nextHeaders[row][0] && !nextHeaders[row][1]) {
+            // do not delete last row
+            if (nextHeaders.length === 1) {
+                nextHeaders[0][0] = 'Name'
+                nextHeaders[0][1] = 'Value'
+            } else {
+                nextHeaders.splice(row, 1)
+                // manually move selection target if this has been the last row.
+                if (row === nextHeaders.length) {
+                    this._nextSel = `${row - 1}-value`
+                }
+            }
+        }
+
+        this.props.onChange(nextHeaders)
+    }
+
+    edit() {
+        this.refs['0-key'].focus()
+    }
+
+    onTab(row, col, e) {
+        const headers = this.props.message.headers
+
+        if (row !== headers.length - 1 || col !== 1) {
+            return
+        }
+
+        e.preventDefault()
+
+        const nextHeaders = _.cloneDeep(this.props.message.headers)
+        nextHeaders.push(['Name', 'Value'])
+        this.props.onChange(nextHeaders)
+        this._nextSel = `${row + 1}-key`
+    }
+
+    componentDidUpdate() {
+        if (this._nextSel && this.refs[this._nextSel]) {
+            this.refs[this._nextSel].focus()
+            this._nextSel = undefined
+        }
+    }
+
+    onRemove(row, col, e) {
+        if (col === 1) {
+            e.preventDefault()
+            this.refs[`${row}-key`].focus()
+        } else if (row > 0) {
+            e.preventDefault()
+            this.refs[`${row - 1}-value`].focus()
+        }
+    }
+
+    render() {
+        const { message } = this.props
+
+        return (
+            <table className="header-table">
+                <tbody>
+                    {message.headers.map((header, i) => (
+                        <tr key={i}>
+                            <td className="header-name">
+                                <HeaderEditor
+                                    ref={`${i}-key`}
+                                    content={header[0]}
+                                    onDone={val => this.onChange(i, 0, val)}
+                                    onRemove={event => this.onRemove(i, 0, event)}
+                                    onTab={event => this.onTab(i, 0, event)}
+                                />:
+                            </td>
+                            <td className="header-value">
+                                <HeaderEditor
+                                    ref={`${i}-value`}
+                                    content={header[1]}
+                                    onDone={val => this.onChange(i, 1, val)}
+                                    onRemove={event => this.onRemove(i, 1, event)}
+                                    onTab={event => this.onTab(i, 1, event)}
+                                />
+                            </td>
+                        </tr>
+                    ))}
+                </tbody>
+            </table>
+        )
+    }
+}