1 files changed, 126 insertions, 0 deletions
diff --git a/animism-align/frontend/app/views/align/components/annotations/annotation.index.js b/animism-align/frontend/app/views/align/components/annotations/annotation.index.js
new file mode 100644
index 0000000..aa31268
--- /dev/null
+++ b/animism-align/frontend/app/views/align/components/annotations/annotation.index.js
@@ -0,0 +1,126 @@
+import React, { Component } from 'react'
+import { bindActionCreators } from 'redux'
+import { connect } from 'react-redux'
+
+import actions from 'app/actions'
+
+import { ZOOM_STEPS, INNER_HEIGHT } from 'app/constants'
+import { clamp } from 'app/utils'
+import { positionToTime, timeToPosition } from 'app/views/align/align.util'
+
+import { AnnotationElementLookup } from './annotationTypes'
+
+class AnnotationIndex extends Component {
+  state = {
+    items: [],
+  }
+  constructor(props){
+    super(props)
+    this.handleClick = this.handleClick.bind(this)
+  }
+  componentDidUpdate(prevProps) {
+    if (this.props.index.loading) return
+    if (prevProps.timeline !== this.props.timeline || prevProps.index !== this.props.index) {
+      this.update()
+    }
+  }
+  update() {
+    let { timeline, index } = this.props
+    let { start_ts, zoom, duration } = this.props.timeline
+    const { order, lookup } = index
+
+    let secondsPerPixel = ZOOM_STEPS[zoom] * 0.1 // 0.1 sec / step
+    let widthTimeDuration = INNER_HEIGHT * secondsPerPixel // secs per pixel
+
+    let timeMin = start_ts - 50.0
+    let timeMax = Math.min(start_ts + widthTimeDuration, duration)
+
+    const items = order.filter(id => {
+      const { start_ts: ts } = lookup[id]
+      return (timeMin < ts && ts < timeMax)
+    }).map(id => lookup[id]).reverse()
+    this.setState({ items })
+  }
+  handleClick(e, annotation) {
+    e.stopPropagation()
+    if (e.shiftKey) {
+      e.preventDefault()
+      this.handleParagraphSelection(annotation, e.metaKey)
+    }
+    actions.audio.seek(annotation.start_ts)
+    actions.align.setSelectedAnnotation(annotation)
+  }
+  handleParagraphSelection(annotation, shouldClear) {
+    const { selected_paragraph_id } = this.props.timeline
+    if (!selected_paragraph_id || selected_paragraph_id === -1 || shouldClear) {
+      if (annotation.paragraph_id && !shouldClear) {
+        actions.align.setSelectedParagraph(annotation.paragraph_id)
+      } else {
+        actions.paragraph.create({
+          type: 'paragraph',
+          start_ts: annotation.start_ts,
+        }).then(data => {
+          actions.align.setSelectedParagraph(data.res.id)
+          annotation.paragraph_id = data.res.id
+          actions.annotation.update(annotation)
+        })
+      }
+    } else if (selected_paragraph_id !== annotation.paragraph_id) {
+      annotation.paragraph_id = selected_paragraph_id
+      actions.annotation.update(annotation)
+    }
+  }
+  handleDoubleClick(e, annotation) {
+    e.stopPropagation()
+    actions.align.showEditAnnotationForm(annotation)
+  }
+  render() {
+    const { timeline, media, annotationInForm, selectedAnnotation } = this.props
+    const { start_ts, zoom, selected_annotation_id } = timeline
+    const { items } = this.state
+    const className = (zoom < 2)
+      ? 'annotationIndex'
+      : (zoom < 3)
+      ? 'annotationIndex condensed'
+      : 'annotationIndex collapsed'
+    return (
+      <div className={className}>
+        {items.map(annotation => {
+          if (annotationInForm && annotation.id === annotationInForm.id) {
+            return null
+          }
+          if (annotation.id === selected_annotation_id) {
+            annotation = selectedAnnotation
+          }
+          const { id, type, start_ts } = annotation
+          const AnnotationElement = AnnotationElementLookup[type]
+          const y = timeToPosition(start_ts, timeline)
+          return (
+            <AnnotationElement
+              key={id}
+              y={y}
+              selected={annotation.id === selected_annotation_id}
+              annotation={annotation}
+              media={media}
+              onClick={this.handleClick}
+              onDoubleClick={this.handleDoubleClick}
+            />
+          )
+        })}
+      </div>
+    )
+  }
+}
+
+const mapStateToProps = state => ({
+  timeline: state.align.timeline,
+  annotationInForm: state.align.annotation,
+  selectedAnnotation: state.align.selectedAnnotation,
+  index: state.annotation.index,
+  media: state.media.index.lookup,
+})
+
+const mapDispatchToProps = dispatch => ({
+})
+
+export default connect(mapStateToProps, mapDispatchToProps)(AnnotationIndex)