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<script lang="ts">
import {defineComponent, PropType} from 'vue';
import {LayoutNode} from '../lib';
import TileImg from './TileImg.vue';
// Component holds a tree-node structure representing a tile or tile-group to be rendered
export default defineComponent({
props: {
layoutNode: {type: Object as PropType<LayoutNode>, required: true},
options: {type: Object, required: true},
// Layout settings from parent
headerSz: {type: Number, required: true},
tileSpacing: {type: Number, required: true},
},
data(){
return {
nonLeafHighlight: false,
clickHoldTimer: 0, // Used to recognise a click-and-hold event
zIdx: 0, // Used during transitions
overflow: 'visible', // Used during transitions
}
},
computed: {
isLeaf(){
return this.layoutNode.children.length == 0;
},
isExpandable(){
return this.layoutNode.tolNode.children.length > this.layoutNode.children.length;
},
showHeader(){
return (this.layoutNode.showHeader && !this.layoutNode.sepSweptArea) ||
(this.layoutNode.sepSweptArea && this.layoutNode.sepSweptArea.sweptLeft);
},
nonLeafBgColor(){
let colorArray = this.options.nonLeafBgColors;
return colorArray[this.layoutNode.depth % colorArray.length];
},
tileStyles(): Record<string,string> {
return {
// Places div using layoutNode, with centering if root
position: 'absolute',
left: (this.layoutNode.hidden ? 0 : this.layoutNode.pos[0]) + 'px',
top: (this.layoutNode.hidden ? 0 : this.layoutNode.pos[1]) + 'px',
width: (this.layoutNode.hidden ? 0 : this.layoutNode.dims[0]) + 'px',
height: (this.layoutNode.hidden ? 0 : this.layoutNode.dims[1]) + 'px',
visibility: this.layoutNode.hidden ? 'hidden' : 'visible',
// Other bindings
transitionDuration: this.options.transitionDuration + 'ms',
zIndex: String(this.zIdx),
overflow: String(this.overflow),
// Static styles
transitionProperty: 'left, top, width, height, visibility',
transitionTimingFunction: 'ease-out',
// CSS variables
'--nonLeafBgColor': this.nonLeafBgColor,
'--tileSpacing': this.tileSpacing + 'px',
};
},
nonLeafStyles(): Record<string,string> {
let temp = {
width: '100%',
height: '100%',
backgroundColor: this.nonLeafBgColor,
borderRadius: this.options.borderRadius + 'px',
boxShadow: this.nonLeafHighlight ? this.options.shadowHighlight : this.options.shadowNormal,
};
if (this.layoutNode.sepSweptArea != null){
let r = this.options.borderRadius + 'px';
temp = this.layoutNode.sepSweptArea.sweptLeft ?
{...temp, borderRadius: `${r} ${r} ${r} 0`} :
{...temp, borderRadius: `${r} 0 ${r} ${r}`};
}
return temp;
},
nonLeafHeaderStyles(): Record<string,string> {
let r = this.options.borderRadius + 'px';
return {
height: this.headerSz + 'px',
lineHeight: this.headerSz + 'px',
fontSize: this.options.nonLeafHeaderFontSz + 'px',
textAlign: 'center',
color: this.options.nonLeafHeaderColor,
backgroundColor: this.options.nonLeafHeaderBgColor,
borderRadius: `${r} ${r} 0 0`,
// For ellipsis
overflow: 'hidden',
textOverflow: 'ellipsis',
whiteSpace: 'nowrap',
};
},
sepSweptAreaStyles(): Record<string,string> {
let commonStyles = {
position: 'absolute',
backgroundColor: this.nonLeafBgColor,
boxShadow: this.nonLeafHighlight ? this.options.shadowHighlight : this.options.shadowNormal,
transitionDuration: this.options.transitionDuration + 'ms',
transitionProperty: 'left, top, width, height',
transitionTimingFunction: 'ease-out',
};
let area = this.layoutNode.sepSweptArea;
if (this.layoutNode.hidden || area == null){
return {
...commonStyles,
visibility: 'hidden',
left: '0',
top: this.headerSz + 'px',
width: '0',
height: '0',
};
} else {
let r = this.options.borderRadius + 'px';
return {
...commonStyles,
left: area.pos[0] + 'px',
top: area.pos[1] + 'px',
width: area.dims[0] + 'px',
height: area.dims[1] + 'px',
borderRadius: area.sweptLeft ? `${r} 0 0 ${r}` : `${r} ${r} 0 0`,
};
}
},
},
methods: {
// Leaf click handling
onLeafMouseDown(){
clearTimeout(this.clickHoldTimer);
this.clickHoldTimer = setTimeout(() => {
this.clickHoldTimer = 0;
this.onLeafClickHold();
}, this.options.clickHoldDuration);
},
onLeafMouseUp(){
if (this.clickHoldTimer > 0){
clearTimeout(this.clickHoldTimer);
this.clickHoldTimer = 0;
this.onLeafClick();
}
},
onLeafClick(){
if (!this.isExpandable){
console.log('Ignored click on non-expandable node');
return;
}
this.$emit('leaf-clicked', {layoutNode: this.layoutNode, domNode: this.$el});
this.leafPrepTransition();
},
onLeafClickHold(){
if (!this.isExpandable){
console.log('Ignored click-hold on non-expandable node');
return;
}
this.$emit('leaf-click-held', this.layoutNode);
this.leafPrepTransition();
},
leafPrepTransition(){ // Temporary style changes to prevent content overlap and overflow
this.zIdx = 1;
this.overflow = 'hidden';
setTimeout(() => {this.zIdx = 0; this.overflow = 'visible';}, this.options.transitionDuration);
},
// Non-leaf click handling
onHeaderMouseDown(){
this.nonLeafHighlight = false;
clearTimeout(this.clickHoldTimer);
this.clickHoldTimer = setTimeout(() => {
this.clickHoldTimer = 0;
this.onHeaderClickHold();
}, this.options.clickHoldDuration);
},
onHeaderMouseUp(){
if (this.clickHoldTimer > 0){
clearTimeout(this.clickHoldTimer);
this.clickHoldTimer = 0;
this.onHeaderClick();
}
},
onHeaderClick(){
this.$emit('header-clicked', {layoutNode: this.layoutNode, domNode: this.$el});
this.nonLeafPrepForTransition();
},
onHeaderClickHold(){
this.$emit('header-click-held', this.layoutNode);
this.nonLeafPrepForTransition();
},
nonLeafPrepForTransition(){ // Temporary style changes to prevent content overlap and overflow
this.zIdx = 1;
setTimeout(() => {this.zIdx = 0}, this.options.transitionDuration);
},
// For coloured-outlines on hovered-over leaf-tiles or non-leaf-headers
onNonLeafMouseEnter(evt: Event){
this.nonLeafHighlight = true;
},
onNonLeafMouseLeave(evt: Event){
this.nonLeafHighlight = false;
},
// Child event propagation
onInnerLeafClicked(data: {layoutNode: LayoutNode, domNode: HTMLElement}){
this.$emit('leaf-clicked', data);
},
onInnerHeaderClicked(data: {layoutNode: LayoutNode, domNode: HTMLElement}){
this.$emit('header-clicked', data);
},
onInnerLeafClickHeld(data: LayoutNode){
this.$emit('leaf-click-held', data);
},
onInnerHeaderClickHeld(data: LayoutNode){
this.$emit('header-click-held', data);
},
onInnerInfoIconClicked(data: LayoutNode){
this.$emit('info-icon-clicked', data);
}
},
name: 'tile', // Need this to use self in template
components: {
TileImg,
},
emits: ['leaf-clicked', 'header-clicked', 'leaf-click-held', 'header-click-held', 'info-icon-clicked'],
});
</script>
<template>
<div :style="tileStyles">
<tile-img v-if="isLeaf" :layoutNode="layoutNode" :tileSz="layoutNode.dims[0]" :options="options"
@mousedown="onLeafMouseDown" @mouseup="onLeafMouseUp" @info-icon-clicked="onInnerInfoIconClicked"/>
<div v-else :style="nonLeafStyles" ref="nonLeaf">
<h1 v-if="showHeader" :style="nonLeafHeaderStyles" class="hover:cursor-pointer"
@mouseenter="onNonLeafMouseEnter" @mouseleave="onNonLeafMouseLeave"
@mousedown="onHeaderMouseDown" @mouseup="onHeaderMouseUp">
{{layoutNode.tolNode.name}}
</h1>
<div :style="sepSweptAreaStyles" ref="sepSweptArea"
:class="layoutNode?.sepSweptArea?.sweptLeft ? 'hide-right-edge' : 'hide-top-edge'">
<h1 v-if="layoutNode?.sepSweptArea?.sweptLeft === false"
:style="nonLeafHeaderStyles" class="hover:cursor-pointer"
@mouseenter="onNonLeafMouseEnter" @mouseleave="onNonLeafMouseLeave"
@mousedown="onHeaderMouseDown" @mouseup="onHeaderMouseUp">
{{layoutNode.tolNode.name}}
</h1>
</div>
<tile v-for="child in layoutNode.children" :key="child.tolNode.name" :layoutNode="child"
:headerSz="headerSz" :tileSpacing="tileSpacing" :options="options"
@leaf-clicked="onInnerLeafClicked" @header-clicked="onInnerHeaderClicked"
@leaf-click-held="onInnerLeafClickHeld" @header-click-held="onInnerHeaderClickHeld"
@info-icon-clicked="onInnerInfoIconClicked"/>
</div>
</div>
</template>
<style>
.hide-right-edge::before {
content: '';
position: absolute;
background-color: var(--nonLeafBgColor);
right: calc(0px - var(--tileSpacing));
bottom: 0;
width: var(--tileSpacing);
height: calc(100% + var(--tileSpacing));
}
.hide-top-edge::before {
content: '';
position: absolute;
background-color: var(--nonLeafBgColor);
bottom: calc(0px - var(--tileSpacing));
right: 0;
width: calc(100% + var(--tileSpacing));
height: var(--tileSpacing);
}
</style>
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