GridEditor.vue 20.5 KB
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<template lang="pug">

  div.cell-grid-container
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    q-window-resize-observable(@resize="updateGridDimensions")
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    div.cell-grid(
      @dragenter="handleGridDragOver",
      @dragover="handleGridDragOver",
      @dragleave="handleGridDragEnd",
      @drop="handleGridDrop",
      @contextmenu="handleGridContextMenu",
      :style="gridStyle")

      q-context-menu(ref="gridmenu")
        q-list(link, separator, no-border, style="min-width: 150px; max-height: 300px;")
          q-item(
            v-for="action in gridContextMenuActions",
            :key="action.label",
            v-close-overlay,
            @click.native="event => {action.handler(event)}")
              q-item-main(:label="action.label")

      template(v-if="!resizingGrid")

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        template(v-for="(annotation, index) in annotations")
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          .cell-item(
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            v-if="!annotationUIStates[annotation._uuid] || !annotationUIStates[annotation._uuid].beingDragged",
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            draggable="true",
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            @dragstart="event => {handleCellDragStart(event, annotation)}",
            @dragend="event => {handleCellDragEnd(event, annotation)}",
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            @contextmenu="handleCellContextMenu",
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            :style="getAnnotationStyle(annotation)",
            @click.prevent="event => {handleCellClick(event, annotation)}",
            :class="{selected: annotationUIStates[annotation._uuid] ? annotationUIStates[annotation._uuid].selected : false}",
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            :key="`cell-${index}`")
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              cell(:annotation="annotation", preview)
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              div.cell-item-resize-handle(
                draggable="true",
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                @dragstart="event => {handleCellResizerDragStart(event, annotation)}",
                @dragend="event => {handleCellResizerDragEnd(event, annotation)}",
                @dragexit="event => {handleCellResizerDragEnd(event, annotation)}")
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                  q-icon(name="network cell")

              q-context-menu
                q-list(link, separator, no-border, style="min-width: 150px; max-height: 300px;")
                  q-item(
                    v-for="action in cellContextMenuActions",
                    :key="action.label",
                    v-close-overlay,
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                    @click.native="event => {action.handler(event, annotation)}")
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                      q-item-main(:label="action.label")

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        template(v-for="(tmpCell, index) in tmpObjects")
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          .cell-item.cell-item-tmp(:style="getAnnotationStyle(tmpCell)", :key="`cell-tmp-${index}`")
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            cell(:cell="tmpCell")

      template(v-else)
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        .cell-item(:style="getAnnotationStyle({x:0,y:0,width:1,height:1})", key="cell-grid-resizer")
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          div.cell-item-resize-handle(
            draggable="true",
            @dragstart="event => {handleGridResizerDragStart(event)}",
            @dragend="event => {handleGridResizerDragEnd(event)}",
            @dragexit="event => {handleGridResizerDragEnd(event)}")
              q-icon(name="network cell")

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      div.fixed-top-right(style="right:18px; top:68px", v-if="!$store.state.mosys.showSources")
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        q-btn(round, color="primary", small, @click="handleGridButtonClickEdit", style="margin-right: 0.5em")
          q-icon(name="add")
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        q-btn(round, color="primary", small, @click="$router.push(`/mosys/grids/${$route.params.uuid}`)")
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          q-icon(name="remove red eye")

</template>

<script>
  import Cell from './Cell'
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  import { userHasFeature } from 'mbjs-quasar/src/lib'
  import { mapGetters } from 'vuex'
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  const nullImage = new Image()
  nullImage.src = 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=='

  export default {
    components: {
      Cell
    },
    props: ['gridUuid'],
    data () {
      return {
        gridContextMenuActions: {
          insert_column_left: {
            label: 'Insert Column Left',
            handler: this.handleGridContextMenuInsertColumnLeft
          },
          delete_column: {
            label: 'Delete Column',
            handler: this.handleGridContextMenuDeleteColumn
          },
          insert_row_above: {
            label: 'Insert Row Above',
            handler: this.handleGridContextMenuInsertRowAbove
          },
          delete_row: {
            label: 'Delete Row',
            handler: this.handleGridContextMenuDeleteRow
          },
          edit_grid_dimensions: {
            label: 'Change Grid',
            handler: () => { this.resizingGrid = !this.resizingGrid }
          }
        },
        grid: undefined,
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        annotations: undefined,
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        tmpObjects: [],
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        annotationUIStates: {},
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        gridDimensions: { gridWidth: 0, gridHeight: 0, cellWidth: 0, cellHeight: 0 },
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        contextMenuClickPosition: {},
        resizingGrid: false
      }
    },
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    computed: {
      ...mapGetters({
        user: 'auth/getUserState'
      }),
      cellContextMenuActions () {
        const actions = {
          delete: {
            label: 'Delete',
            handler: this.handleCellContextMenuDelete
          },
          insert_column_left: {
            label: 'Insert Column Left',
            handler: this.handleGridContextMenuInsertColumnLeft
          },
          insert_row_above: {
            label: 'Insert Row Above',
            handler: this.handleGridContextMenuInsertRowAbove
          }
        }
        if (userHasFeature(this.user, 'cssediting')) {
          actions.edit_css_classname = {
            label: 'Edit CSS class name',
            handler: this.handleCellContextMenuEditCSS
          }
        }
        return actions
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      },
      gridStyle () {
        if (!this.gridDimensions || !this.gridDimensions.full) return {}
        // TODO: fix mobile grid editor view
        const cell = this.gridDimensions.full.cell
        return {
          width: `${this.gridDimensions.full.width}px`,
          height: '100%',
          'grid-auto-columns': `${cell.width}px`,
          'grid-auto-rows': `${cell.height}px`,
          'background-image': `url("data:image/svg+xml;utf8,` +
            `<svg xmlns='http://www.w3.org/2000/svg' width='100%' height='100%'><defs>` +
            `<pattern id='smallGrid' width='${cell.width}' height='${cell.height}' patternUnits='userSpaceOnUse'>` +
            `<path d='M ${cell.width} 0 L 0 0 0 ${cell.height}' fill='none' stroke='gray' stroke-width='0.5'/>` +
            `</pattern></defs><rect width='100%' height='100%' fill='url(%23smallGrid)' /></svg>")`
        }
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      }
    },
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    async mounted () {
      await this.fetchData()
    },
    watch: {
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      annotations () {
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        this.updateAnnotationUIStates()
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      },
      gridMetadata () {
        this.updateGridDimensions()
      },
      async gridUuid () {
        await this.fetchData()
      }
    },
    methods: {
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      //
      // DATA
      //

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      async fetchData () {
        if (this.gridUuid) {
          this.grid = await this.$store.dispatch('maps/get', this.gridUuid)
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          if (!Object.keys(this.grid.config).length) {
            this.grid.config = {
              columns: 10,
              rows: 6,
              ratio: 16 / 9.0
            }
            await this.updateGridMetadataStore()
          }
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          this.updateGridDimensions()
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          const { items } = await this.$store.dispatch('annotations/find', {
            'target.id': this.grid.id,
            'body.purpose': 'linking',
            'body.type': 'Cell'
          })
          this.annotations = items
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        }
      },
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      async updateGridMetadataStore () {
        await this.$store.dispatch('maps/patch', [this.grid.id, { config: this.grid.config }])
        this.updateGridDimensions()
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      },
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      updateSelectedCells () {
        const _this = this
        let selectedCells = Object.keys(this.annotationUIStates).filter(k => {
          return _this.annotationUIStates[k].selected
        }).map(k => {
          return _this.cells.find(c => c._uuid === k)
        })
        this.$store.commit('mosys/setSelectedCells', selectedCells)
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      },
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      updateAnnotationUIStates () {
        let newAnnotationUIStates = {}
        this.annotations.forEach(a => {
          newAnnotationUIStates[a._uuid] = {
            selected: false,
            beingResized: false,
            annotation: a
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          }
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        })
        this.annotationUIStates = newAnnotationUIStates
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        this.updateSelectedCells()
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      },
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      //
      // GRID DRAG & DROP HANDLERS
      //

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      async handleGridDragOver (event) {
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        let _this = this
        if (this.resizingGrid) {
          const position = this.getGridPositionForEvent(event)
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          this.grid.config.ratio = position.ox / (position.oy * 1.0)
          await this.updateGridMetadataStore()
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        }
        else {
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          let annotation = this.annotations.filter(annotation => {
            if (!_this.annotationUIStates[annotation._uuid]) return false
            return _this.annotationUIStates[annotation._uuid].beginDragged ||
              _this.annotationUIStates[annotation._uuid].beingResized
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          }).shift()
          let offset, position
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          if (!annotation) {
            annotation = {
              target: this.grid.get2DArea([1, 1], [1, 1])
            }
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            position = this.getGridPositionForEvent(event)
          }
          else {
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            offset = this.annotationUIStates[annotation._uuid].draggingOffset
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            position = this.getGridPositionForEvent(event, offset)
          }
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          if (!this.tmpObjects.length) this.tmpObjects.push(annotation)
          const parsed = annotation.target.selector.parse()
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          if (event.dataTransfer.types.includes('text/plain')) {
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            parsed.xywh[0] = position.x
            parsed.xywh[1] = position.y
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            event.preventDefault()
          }
          else {
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            parsed.xywh[2] = Math.max(1, 1 + position.x - parsed.xywh[0])
            parsed.xywh[3] = Math.max(1, 1 + position.y - parsed.xywh[1])
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          }
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          annotation.target.selector.value = parsed
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        }
      },
      handleGridDragEnd () {
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        this.tmpObjects = []
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      },
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      async handleGridDrop (event) {
        let dropData = event.dataTransfer.getData('text/plain')
        if (dropData) {
          dropData = JSON.parse(dropData)
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          let annotation = this.annotations.find(a => a.id === dropData.id)
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          const { x, y } = this.getGridPositionForEvent(
            event,
            annotation ? this.annotationUIStates[annotation._uuid].draggingOffset : undefined
          )
          if (annotation) {
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            const
              parsed = annotation.target.selector.parse(),
              target = this.grid.get2DArea([x, y], parsed.xywh.slice(2))
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            annotation.target.selector.value = target.selector.value
            await this.$store.dispatch('annotations/patch', [annotation.id, {
              target: {
                selector: { value: target.selector.value }
              }
            }])
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          }
          else {
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            const
              { data, config, component } = dropData,
              cell = await this.$store.dispatch('cells/post', { data, config, component })
            annotation = await this.$store.dispatch('annotations/post', {
              body: {
                type: 'Cell',
                purpose: 'linking',
                source: {
                  id: cell.id
                }
              },
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              target: this.grid.get2DArea([x, y], [1, 1])
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            })
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            this.annotations.push(annotation)
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            this.updateAnnotationUIStates()
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          }
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          this.tmpObjects = []
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          event.preventDefault()
        }
      },
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      //
      // CELL DRAG & DROP HANDLERS
      //

      handleCellClick (event, cell) {
        this.annotationUIStates[cell._uuid].selected = !this.annotationUIStates[cell._uuid].selected
        this.updateSelectedCells()
      },
      handleCellDragStart (event, annotation) {
        if (!this.annotationUIStates[annotation._uuid].beingResized) {
          event.dataTransfer.setData('text/plain', JSON.stringify(annotation))
          event.dataTransfer.setDragImage(nullImage, 0, 0)
          let elContainerBoundingBox = this.$el.getBoundingClientRect()
          let elBoundingBox = event.target.getBoundingClientRect()
          let offset = {
            x: (event.clientX - elContainerBoundingBox.x) - (elBoundingBox.x - elContainerBoundingBox.x),
            y: (event.clientY - elContainerBoundingBox.y) - (elBoundingBox.y - elContainerBoundingBox.y)
          }
          this.annotationUIStates[annotation._uuid].draggingOffset = offset
          this.annotationUIStates[annotation._uuid].beginDragged = true
        }
        this.tmpObjects.push(annotation)
      },
      handleCellDragEnd (event, annotation) {
        this.annotationUIStates[annotation._uuid].beingDragged = false
      },
      async handleCellContextMenuDelete (event, annotation) {
        this.annotationUIStates[annotation._uuid].selected = false
        this.updateSelectedCells()
        await this.$store.dispatch('cells/delete', annotation.body.source.id)
        await this.$store.dispatch('annotations/delete', annotation.id)
        this.annotations = this.annotations.filter(a => a.id !== annotation.id)
      },

      //
      // GRID RESIZE HANDLERS

      handleGridResizerDragStart (event) {
        event.dataTransfer.setDragImage(nullImage, 0, 0)
      },
      async handleGridResizerDragEnd () {
        await this.updateGridMetadataStore()
      },

      //
      // CELL RESIZE HANDLERS
      //

      handleCellResizerDragStart (event, annotation) {
        event.dataTransfer.setDragImage(nullImage, 0, 0)
        this.annotationUIStates[annotation._uuid].beingResized = true
        this.tmpObjects.push(annotation)
      },
      async handleCellResizerDragEnd (event, annotation) {
        let position = this.getGridPositionForEvent(event)
        let
          parsed = annotation.target.selector.parse(),
          [x, y, w, h] = parsed.xywh
        w = Math.max(1, 1 + position.x - x)
        h = Math.max(1, 1 + position.y - y)
        const value = { xywh: [x, y, w, h] }
        annotation.target.selector.value = value
        this.annotationUIStates[annotation._uuid].beingResized = false
        this.tmpObjects = []
        await this.$store.dispatch('annotations/patch', [annotation.id, { target: { selector: { value } } }])
      },

      //
      // CELL CONTEXT MENU
      //

      handleCellContextMenu (event) {
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        this.contextMenuClickPosition = this.getGridPositionForEvent(event)
      },
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      async handleCellContextMenuEditCSS (event, annotation) {
        try {
          let styleClass = await this.$q.dialog({
            title: this.$t('forms.edit_css_class.title'),
            ok: this.$t('buttons.set_css_class'),
            cancel: this.$t('buttons.cancel'),
            prompt: {
              model: annotation.styleClass,
              type: 'text'
            }
          })
          if (styleClass) {
            if (!styleClass.length) styleClass = undefined
            else if (styleClass.indexOf('.') === 0) styleClass = styleClass.substr(1)
          }
          annotation.styleClass = styleClass
          this.$store.dispatch('annotations/patch', [annotation._uuid, { target: { styleClass: styleClass || null } }])
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        }
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        catch (e) { /* dialog canceled */ }
      },

      //
      // GRID CONTEXT MENU
      //

      handleGridContextMenu (event) {
        this.contextMenuClickPosition = this.getGridPositionForEvent(event)
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      },
      async handleGridContextMenuInsertColumnLeft () {
        let position = this.contextMenuClickPosition
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        for (let annotation of this.annotations) {
          const parsed = annotation.target.selector.parse()
          if (parsed.xywh[0] >= position.x) {
            parsed.xywh[0] += 1
            annotation.target.selector.value = parsed
            await this.$store.dispatch('annotations/patch', [annotation.id, {
              target: { selector: { value: parsed } }
            }])
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          }
        }
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        this.grid.config.columns += 1
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        await this.updateGridMetadataStore()
      },
      async handleGridContextMenuDeleteColumn () {
        let position = this.contextMenuClickPosition
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        for (let annotation of this.annotations) {
          const parsed = annotation.target.selector.parse()
          if (parsed.xywh[0] > position.x) {
            parsed.xywh[0] -= 1
            annotation.target.selector.value = parsed
            await this.$store.dispatch('annotations/patch', [annotation.id, {
              target: { selector: { value: parsed } }
            }])
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          }
        }
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        this.grid.config.columns -= 1
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        await this.updateGridMetadataStore()
      },
      async handleGridContextMenuInsertRowAbove () {
        let position = this.contextMenuClickPosition
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        for (let annotation of this.annotations) {
          const parsed = annotation.target.selector.parse()
          if (parsed.xywh[1] >= position.y) {
            parsed.xywh[1] += 1
            annotation.target.selector.value = parsed
            await this.$store.dispatch('annotations/patch', [annotation.id, {
              target: { selector: { value: parsed } }
            }])
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          }
        }
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        this.grid.config.rows += 1
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        await this.updateGridMetadataStore()
      },
      async handleGridContextMenuDeleteRow () {
        let position = this.contextMenuClickPosition
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        for (let annotation of this.annotations) {
          const parsed = annotation.target.selector.parse()
          if (parsed.xywh[1] > position.y) {
            parsed.xywh[1] -= 1
            annotation.target.selector.value = parsed
            await this.$store.dispatch('annotations/patch', [annotation.id, {
              target: { selector: { value: parsed } }
            }])
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          }
        }
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        this.grid.config.rows -= 1
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        await this.updateGridMetadataStore()
      },
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      //
      // NAVIGATION
      //

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      handleGridButtonClickEdit () {
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        this.$store.commit('mosys/toggleSources')
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      },
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      //
      // GRID HELPERS
      //

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      getGridPositionForEvent (event, offset = { x: 0, y: 0 }) {
        offset = { x: 0, y: 0 } // TODO: remove quick fix
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        const elContainerBoundingBox = this.$el.getBoundingClientRect()
        const ox = event.clientX + this.$el.scrollLeft - elContainerBoundingBox.x - offset.x
        const oy = event.clientY + this.$el.scrollTop - elContainerBoundingBox.y - offset.y
        const x = Math.ceil(ox / this.gridDimensions.full.cell.width)
        const y = Math.ceil(oy / this.gridDimensions.full.cell.height)
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        return { x: x, y: y, ox: ox, oy: oy }
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      },
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      updateGridDimensions (size) {
        if (!this.grid || !this.grid.config) return

        let elWidth = size ? size.width : this.$el.offsetWidth
        let elHeight = size ? size.height : this.$el.offsetHeight
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        let cellSizeRatio = this.grid.config.ratio
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        let gridHeight = elHeight
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        let cellHeight = gridHeight / this.grid.config.rows
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        let cellWidth = elWidth / Math.round(elWidth / (cellHeight * cellSizeRatio))
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        let gridWidth = cellWidth * this.grid.config.columns
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        let cellsPerWidth = elWidth / cellWidth
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        let cellWidthMini = elWidth / this.grid.config.columns
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        let gridHeightMini = cellWidthMini / cellSizeRatio
        this.gridDimensions = {
          full: {
            width: gridWidth,
            height: gridHeight,
            cell: {
              width: cellWidth,
              height: cellHeight
            },
            cells_per_width: cellsPerWidth
          },
          mini: {
            width: elWidth,
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            height: gridHeightMini * this.grid.config.rows,
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            cell: {
              width: cellWidthMini,
              height: gridHeightMini
            }
          }
        }
      },
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      getAnnotationStyle (annotation) {
        const parsed = annotation.target.selector.parse()
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        return {
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          'grid-column-start': parsed.xywh[0],
          'grid-column-end': `span ${parsed.xywh[2]}`,
          'grid-row-start': parsed.xywh[1],
          'grid-row-end': `span ${parsed.xywh[3]}`
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        }
      }
    }
  }
</script>

<style scoped lang="stylus">
  .cell-grid
    display grid
    background-color #eee

  .cell-item

    &
      background-color rgba(0,0,0,0.2)
      border 1px solid #777
      margin 1px
      box-sizing border-box
      position relative
      overflow: hidden
      grid-column-start: 1
      grid-column-end: span 1
      grid-row-start: 1
      grid-row-end: span 1

    &:hover
      background-color lightblue

    &.selected
      background-color lightpink

    .cell-item-inner
      width 100%
      height 100%

    .cell-item-resize-handle
      color rgba(0,0,0,0.2)
      position absolute
      right 0
      bottom 0
      width 18px
      height 20px

      &:hover
        color black

</style>