1 files changed, 196 insertions, 0 deletions
diff --git a/animism-align/frontend/app/views/editor/align/containers/timeline.container.js b/animism-align/frontend/app/views/editor/align/containers/timeline.container.js
new file mode 100644
index 0000000..feb4f6a
--- /dev/null
+++ b/animism-align/frontend/app/views/editor/align/containers/timeline.container.js
@@ -0,0 +1,196 @@
+import React, { Component } from 'react'
+// import { Link } from 'react-router-dom'
+import { connect } from 'react-redux'
+
+import actions from 'app/actions'
+
+import Annotations from 'app/views/editor/align/containers/annotations.container'
+import Waveform from 'app/views/editor/align/components/timeline/waveform.component'
+import Ticks from 'app/views/editor/align/components/timeline/ticks.component'
+import Cursor from 'app/views/editor/align/components/timeline/cursor.component'
+import PlayCursor from 'app/views/editor/align/components/timeline/playCursor.component'
+import CursorRegion from 'app/views/editor/align/components/timeline/cursorRegion.component'
+
+import { WAVEFORM_SIZE, ZOOM_STEPS, INNER_HEIGHT } from 'app/constants'
+import { clamp } from 'app/utils'
+import { positionToTime } from 'app/utils/align.utils'
+
+class Timeline extends Component {
+  state = {
+    dragging: false,
+    a_ts: -1,
+  }
+  constructor(props){
+    super(props)
+    this.handleKeydown = this.handleKeydown.bind(this)
+    this.handleMouseMove = this.handleMouseMove.bind(this)
+    this.handleWheel = this.handleWheel.bind(this)
+    this.handleContainerClick = this.handleContainerClick.bind(this)
+    this.handleTimelineMouseDown = this.handleTimelineMouseDown.bind(this)
+    this.handleTimelineMouseUp = this.handleTimelineMouseUp.bind(this)
+  }
+  componentDidMount() {
+    this.bind()
+  }
+  componentWillUnmount() {
+    this.unbind()
+  }
+  shouldComponentUpdate(nextProps) {
+    return (
+      nextProps.timeline !== this.props.timeline ||
+      nextProps.annotation !== this.props.annotation
+    )
+  }
+  bind() {
+    document.addEventListener('keydown', this.handleKeydown)
+  }
+  unbind() {
+    document.removeEventListener('keydown', this.handleKeydown)
+  }
+  handleKeydown(e) {
+    if (document.activeElement !== document.body) {
+      return
+    }
+    console.log(e.keyCode)
+    if (e.metaKey && this.props.selectedAnnotation.id) {
+      const { selectedAnnotation } = this.props
+      switch (e.keyCode) {
+        case 38: // up
+          e.preventDefault()
+          selectedAnnotation.start_ts = Math.max(selectedAnnotation.start_ts - (e.shiftKey ? 1 : 0.1), 0)
+          actions.align.updateSelectedAnnotation(selectedAnnotation)
+          actions.audio.seek(selectedAnnotation.start_ts)
+          actions.align.setCursor(selectedAnnotation.start_ts)
+          break
+        case 40: // down
+          e.preventDefault()
+          selectedAnnotation.start_ts += e.shiftKey ? 1 : 0.1
+          actions.align.updateSelectedAnnotation(selectedAnnotation)
+          actions.audio.seek(selectedAnnotation.start_ts)
+          actions.align.setCursor(selectedAnnotation.start_ts)
+          break
+        case 68: // D
+          e.preventDefault()
+          actions.align.cloneSelectedAnnotation(selectedAnnotation)
+      }
+      return
+    }
+    if (e.shiftKey) {
+      switch (e.keyCode) {
+        case 187: // plus
+          actions.align.setZoom(this.props.timeline.zoom - 1)
+          break
+        case 189: // minus
+          actions.align.setZoom(this.props.timeline.zoom + 1)
+          break
+      }
+    } else {
+      // console.log(e.keyCode)
+      switch (e.keyCode) {
+        case 27: // escape
+          actions.align.hideAnnotationForm()
+          break
+        case 65: // A - add
+          e.preventDefault()
+          actions.align.showNewAnnotationForm(this.props.audio.play_ts, this.props.text)
+          break
+        case 32: // spacebar
+          actions.audio.toggle()
+          break
+        case 38: // up
+          actions.audio.jump(- ZOOM_STEPS[this.props.timeline.zoom] * 0.1)
+          break
+        case 40: // down
+          actions.audio.jump(ZOOM_STEPS[this.props.timeline.zoom] * 0.1)
+          break
+      }
+    }
+  }
+  handleWheel(e) {
+    let { start_ts, zoom, duration } = this.props.timeline
+    let { deltaY } = e
+    let secondsPerPixel = ZOOM_STEPS[zoom] * 0.1 // 0.1 sec / step
+    let widthTimeDuration = INNER_HEIGHT * secondsPerPixel // secs per pixel
+    start_ts += Math.round((deltaY) * ZOOM_STEPS[zoom])
+    start_ts = clamp(start_ts, 0, Math.max(0, duration - widthTimeDuration / 2))
+    if (e.shiftKey) {
+      if (Math.abs(deltaY) < 2) return
+      if (e.deltaY > 0) {
+        actions.align.throttledSetZoom(this.props.timeline.zoom + 1)
+      } else {
+        actions.align.throttledSetZoom(this.props.timeline.zoom - 1)
+      }
+    } else if (e.altKey) {
+      actions.audio.jump(e.deltaY * ZOOM_STEPS[zoom])
+    } else {
+      actions.align.setScrollPosition(start_ts)
+    }
+  }
+  handleContainerClick(e) {
+    actions.align.clearSelectedAnnotation()
+    actions.align.clearSelectedParagraph()
+  }
+  handleTimelineMouseDown(e) {
+    const cursor_ts = positionToTime(e.pageY, this.props.timeline)
+    actions.align.clearCursorRegion()
+    actions.align.setCursor(cursor_ts)
+    this.setState({
+      dragging: true,
+      a_ts: cursor_ts,
+    })
+  }
+  handleMouseMove(e) {
+    const cursor_ts = positionToTime(e.pageY, this.props.timeline)
+    if (this.state.dragging) {
+      actions.align.setCursorRegion(
+        Math.min(this.state.a_ts, cursor_ts),
+        Math.max(this.state.a_ts, cursor_ts),
+      )
+    } else {
+      actions.align.setCursor(cursor_ts)
+    }
+  }
+  handleTimelineMouseUp(e) {
+    this.setState({ dragging: false })
+    const play_ts = positionToTime(e.pageY, this.props.timeline)
+    if (e.metaKey) {
+      actions.align.spliceTime(play_ts)
+    } else if (e.pageX < WAVEFORM_SIZE * 0.67) {
+      actions.audio.seek(play_ts)      
+    } else {
+      actions.align.showNewAnnotationForm(play_ts, this.props.text)
+    }
+  }
+  render() {
+    return (
+      <div
+        className='timeline'
+        onClick={this.handleContainerClick}
+        onWheel={this.handleWheel}
+        onMouseMove={this.handleMouseMove}
+      >
+        <div className='timelineColumn'>
+          <Waveform
+            onMouseDown={this.handleTimelineMouseDown}
+            onMouseUp={this.handleTimelineMouseUp}
+          />
+          <Ticks timeline={this.props.timeline} />
+          <Cursor timeline={this.props.timeline} annotation={this.props.annotation} />
+          <CursorRegion timeline={this.props.timeline} />
+        </div>
+        <Annotations timeline={this.props.timeline} />
+        <PlayCursor />
+      </div>
+    )
+  }
+}
+
+const mapStateToProps = state => ({
+  timeline: state.align.timeline,
+  annotation: state.align.annotation,
+  selectedAnnotation: state.align.selectedAnnotation,
+  audio: state.audio,
+  text: state.site.text,
+})
+
+export default connect(mapStateToProps)(Timeline)