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<script>
import filter from 'lodash/filter'
import get from 'lodash/get'
import isEmpty from 'lodash/isEmpty'
import keyBy from 'lodash/keyBy'
import times from 'lodash/times'
import { getKeyBoundingBox } from '../key-units'
import KeyboardLayout from './keyboard-layout.vue'
import LayerSelector from './layer-selector.vue'
export default {
name: 'keymap',
components: {
'layer-selector': LayerSelector,
'keyboard-layout': KeyboardLayout
},
props: ['layout', 'keymap'],
emits: ['update'],
inject: [
'keycodes',
'behaviours',
'indexedKeycodes',
'indexedBehaviours'
],
provide() {
return {
getSearchTargets: this.getSearchTargets,
getSources: () => this.sources
}
},
data() {
return {
activeLayer: 0,
editing: null
}
},
computed: {
availableLayers() {
if (isEmpty(this.keymap)) {
return []
}
return this.keymap.layers.map((_, i) => ({
code: i,
description: this.keymap.layer_names[i] || `Layer ${i}`
}))
},
sources() {
return {
kc: this.indexedKeycodes,
code: this.indexedKeycodes,
mod: keyBy(filter(this.keycodes, 'isModifier'), 'code'),
behaviours: this.indexedBehaviours,
layer: keyBy(this.availableLayers, 'code')
}
}
},
methods: {
isReady() {
return (
Object.keys(this.indexedKeycodes).length > 0 &&
Object.keys(this.indexedBehaviours).length > 0 &&
get(this.keymap, 'layers.length', 0) > 0
)
},
getSearchTargets(param, behaviour) {
// Special case for behaviour commands which can dynamically add another
// parameter that isn't defined at the root level of the behaviour.
// Currently this is just `&bt BT_SEL` and is only represented as an enum.
if (param.enum) {
return param.enum.map(v => ({ code: v }))
}
switch (param) {
case 'behaviour':
return this.behaviours
case 'layer':
return this.availableLayers
case 'mod':
return filter(this.keycodes, 'isModifier')
case 'command':
return get(this.sources, ['behaviours', behaviour, 'commands'], [])
case 'kc':
default:
return this.keycodes
}
},
boundingBox() {
return this.layout.map(key => getKeyBoundingBox(
{ x: key.x, y: key.y },
{ u: key.u, h: key.h },
{ x: key.rx, y: key.ry, a: key.r }
)).reduce(({ x, y }, { max }) => ({
x: Math.max(x, max.x),
y: Math.max(y, max.y)
}), { x: 0, y: 0 })
},
getWrapperStyle() {
const bbox = this.boundingBox()
return {
width: `${bbox.x}px`,
height: `${bbox.y}px`,
margin: '0 auto',
padding: '40px'
}
},
handleCreateLayer() {
const layer = this.keymap.layers.length
const binding = '&trans'
const makeKeycode = () => ({ value: binding, params: [] })
const newLayer = times(this.layout.length, makeKeycode)
const updatedLayerNames = [ ...this.keymap.layer_names, `Layer #${layer}` ]
const layers = [ ...this.keymap.layers, newLayer ]
this.$emit('update', { ...this.keymap, layer_names: updatedLayerNames, layers })
},
handleUpdateLayer(layerIndex, updatedLayer) {
const original = this.keymap.layers
const layers = [
...original.slice(0, layerIndex),
updatedLayer,
...original.slice(layerIndex + 1)
]
this.$emit('update', { ...this.keymap, layers })
}
}
}
</script>
<template>
<layer-selector
v-if="isReady()"
:layers="keymap.layer_names"
:activeLayer="activeLayer"
@select="activeLayer = $event"
@new-layer="handleCreateLayer"
/>
<div :style="getWrapperStyle()" v-bind="$attrs">
<keyboard-layout
v-if="isReady()"
:data-layer="activeLayer"
:layout="layout"
:keys="keymap.layers[activeLayer]"
@update="handleUpdateLayer(activeLayer, $event)"
class="active"
/>
</div>
</template>
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