412 lines
13 KiB
Vue
Executable File
412 lines
13 KiB
Vue
Executable File
<template>
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<div :class="containerClass" @click="onBarClick">
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<span class="p-slider-range" :style="rangeStyle"></span>
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<span
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v-if="!range"
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class="p-slider-handle"
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:style="handleStyle"
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@touchstart="onDragStart($event)"
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@touchmove="onDrag($event)"
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@touchend="onDragEnd($event)"
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@mousedown="onMouseDown($event)"
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@keydown="onKeyDown($event)"
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:tabindex="tabindex"
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role="slider"
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:aria-valuemin="min"
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:aria-valuenow="modelValue"
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:aria-valuemax="max"
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:aria-labelledby="ariaLabelledby"
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:aria-label="ariaLabel"
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:aria-orientation="orientation"
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></span>
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<span
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v-if="range"
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class="p-slider-handle"
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:style="rangeStartHandleStyle"
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@touchstart="onDragStart($event, 0)"
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@touchmove="onDrag($event)"
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@touchend="onDragEnd($event)"
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@mousedown="onMouseDown($event, 0)"
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@keydown="onKeyDown($event, 0)"
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:tabindex="tabindex"
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role="slider"
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:aria-valuemin="min"
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:aria-valuenow="modelValue ? modelValue[0] : null"
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:aria-valuemax="max"
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:aria-labelledby="ariaLabelledby"
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:aria-label="ariaLabel"
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:aria-orientation="orientation"
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></span>
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<span
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v-if="range"
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class="p-slider-handle"
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:style="rangeEndHandleStyle"
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@touchstart="onDragStart($event, 1)"
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@touchmove="onDrag($event)"
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@touchend="onDragEnd($event)"
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@mousedown="onMouseDown($event, 1)"
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@keydown="onKeyDown($event, 1)"
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:tabindex="tabindex"
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role="slider"
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:aria-valuemin="min"
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:aria-valuenow="modelValue ? modelValue[1] : null"
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:aria-valuemax="max"
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:aria-labelledby="ariaLabelledby"
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:aria-label="ariaLabel"
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:aria-orientation="orientation"
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></span>
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</div>
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</template>
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<script>
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import { DomHandler } from 'primevue/utils';
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export default {
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name: 'Slider',
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emits: ['update:modelValue', 'change', 'slideend'],
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props: {
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modelValue: [Number, Array],
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min: {
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type: Number,
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default: 0
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},
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max: {
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type: Number,
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default: 100
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},
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orientation: {
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type: String,
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default: 'horizontal'
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},
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step: {
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type: Number,
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default: null
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},
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range: {
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type: Boolean,
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default: false
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},
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disabled: {
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type: Boolean,
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default: false
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},
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tabindex: {
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type: Number,
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default: 0
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},
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'aria-labelledby': {
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type: String,
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default: null
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},
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'aria-label': {
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type: String,
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default: null
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}
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},
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dragging: false,
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handleIndex: null,
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initX: null,
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initY: null,
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barWidth: null,
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barHeight: null,
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dragListener: null,
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dragEndListener: null,
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beforeUnmount() {
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this.unbindDragListeners();
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},
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methods: {
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updateDomData() {
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let rect = this.$el.getBoundingClientRect();
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this.initX = rect.left + DomHandler.getWindowScrollLeft();
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this.initY = rect.top + DomHandler.getWindowScrollTop();
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this.barWidth = this.$el.offsetWidth;
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this.barHeight = this.$el.offsetHeight;
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},
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setValue(event) {
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let handleValue;
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let pageX = event.touches ? event.touches[0].pageX : event.pageX;
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let pageY = event.touches ? event.touches[0].pageY : event.pageY;
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if (this.orientation === 'horizontal') handleValue = ((pageX - this.initX) * 100) / this.barWidth;
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else handleValue = ((this.initY + this.barHeight - pageY) * 100) / this.barHeight;
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let newValue = (this.max - this.min) * (handleValue / 100) + this.min;
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if (this.step) {
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const oldValue = this.range ? this.modelValue[this.handleIndex] : this.modelValue;
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const diff = newValue - oldValue;
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if (diff < 0) newValue = oldValue + Math.ceil(newValue / this.step - oldValue / this.step) * this.step;
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else if (diff > 0) newValue = oldValue + Math.floor(newValue / this.step - oldValue / this.step) * this.step;
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} else {
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newValue = Math.floor(newValue);
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}
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this.updateModel(event, newValue);
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},
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updateModel(event, value) {
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let newValue = parseFloat(value.toFixed(10));
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let modelValue;
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if (this.range) {
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modelValue = this.modelValue ? [...this.modelValue] : [];
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if (this.handleIndex == 0) {
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if (newValue < this.min) newValue = this.min;
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else if (newValue >= this.max) newValue = this.max;
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modelValue[0] = newValue;
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} else {
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if (newValue > this.max) newValue = this.max;
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else if (newValue <= this.min) newValue = this.min;
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modelValue[1] = newValue;
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}
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} else {
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if (newValue < this.min) newValue = this.min;
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else if (newValue > this.max) newValue = this.max;
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modelValue = newValue;
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}
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this.$emit('update:modelValue', modelValue);
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this.$emit('change', modelValue);
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},
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onDragStart(event, index) {
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if (this.disabled) {
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return;
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}
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DomHandler.addClass(this.$el, 'p-slider-sliding');
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this.dragging = true;
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this.updateDomData();
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if (this.range && this.modelValue[0] === this.max) {
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this.handleIndex = 0;
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} else {
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this.handleIndex = index;
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}
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event.currentTarget.focus();
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event.preventDefault();
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},
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onDrag(event) {
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if (this.dragging) {
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this.setValue(event);
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event.preventDefault();
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}
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},
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onDragEnd(event) {
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if (this.dragging) {
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this.dragging = false;
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DomHandler.removeClass(this.$el, 'p-slider-sliding');
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this.$emit('slideend', { originalEvent: event, value: this.modelValue });
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}
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},
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onBarClick(event) {
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if (this.disabled) {
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return;
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}
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if (!DomHandler.hasClass(event.target, 'p-slider-handle')) {
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this.updateDomData();
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this.setValue(event);
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}
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},
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onMouseDown(event, index) {
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this.bindDragListeners();
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this.onDragStart(event, index);
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},
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onKeyDown(event, index) {
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this.handleIndex = index;
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switch (event.code) {
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case 'ArrowDown':
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case 'ArrowLeft':
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this.decrementValue(event, index);
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event.preventDefault();
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break;
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case 'ArrowUp':
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case 'ArrowRight':
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this.incrementValue(event, index);
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event.preventDefault();
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break;
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case 'PageDown':
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this.decrementValue(event, index, true);
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event.preventDefault();
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break;
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case 'PageUp':
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this.incrementValue(event, index, true);
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event.preventDefault();
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break;
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case 'Home':
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this.updateModel(event, this.min);
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event.preventDefault();
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break;
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case 'End':
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this.updateModel(event, this.max);
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event.preventDefault();
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break;
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default:
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break;
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}
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},
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decrementValue(event, index, pageKey = false) {
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let newValue;
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if (this.range) {
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if (this.step) newValue = this.modelValue[index] - this.step;
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else newValue = this.modelValue[index] - 1;
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} else {
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if (this.step) newValue = this.modelValue - this.step;
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else if (!this.step && pageKey) newValue = this.modelValue - 10;
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else newValue = this.modelValue - 1;
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}
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this.updateModel(event, newValue);
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event.preventDefault();
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},
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incrementValue(event, index, pageKey = false) {
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let newValue;
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if (this.range) {
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if (this.step) newValue = this.modelValue[index] + this.step;
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else newValue = this.modelValue[index] + 1;
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} else {
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if (this.step) newValue = this.modelValue + this.step;
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else if (!this.step && pageKey) newValue = this.modelValue + 10;
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else newValue = this.modelValue + 1;
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}
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this.updateModel(event, newValue);
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event.preventDefault();
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},
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bindDragListeners() {
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if (!this.dragListener) {
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this.dragListener = this.onDrag.bind(this);
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document.addEventListener('mousemove', this.dragListener);
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}
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if (!this.dragEndListener) {
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this.dragEndListener = this.onDragEnd.bind(this);
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document.addEventListener('mouseup', this.dragEndListener);
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}
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},
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unbindDragListeners() {
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if (this.dragListener) {
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document.removeEventListener('mousemove', this.dragListener);
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this.dragListener = null;
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}
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if (this.dragEndListener) {
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document.removeEventListener('mouseup', this.dragEndListener);
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this.dragEndListener = null;
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}
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}
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},
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computed: {
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containerClass() {
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return [
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'p-slider p-component',
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{
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'p-disabled': this.disabled,
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'p-slider-horizontal': this.orientation === 'horizontal',
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'p-slider-vertical': this.orientation === 'vertical'
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}
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];
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},
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horizontal() {
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return this.orientation === 'horizontal';
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},
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vertical() {
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return this.orientation === 'vertical';
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},
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rangeStyle() {
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if (this.range) {
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const rangeSliderWidth = this.rangeEndPosition > this.rangeStartPosition ? this.rangeEndPosition - this.rangeStartPosition : this.rangeStartPosition - this.rangeEndPosition;
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const rangeSliderPosition = this.rangeEndPosition > this.rangeStartPosition ? this.rangeStartPosition : this.rangeEndPosition;
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if (this.horizontal) return { left: rangeSliderPosition + '%', width: rangeSliderWidth + '%' };
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else return { bottom: rangeSliderPosition + '%', height: rangeSliderWidth + '%' };
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} else {
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if (this.horizontal) return { width: this.handlePosition + '%' };
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else return { height: this.handlePosition + '%' };
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}
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},
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handleStyle() {
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if (this.horizontal) return { left: this.handlePosition + '%' };
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else return { bottom: this.handlePosition + '%' };
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},
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handlePosition() {
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if (this.modelValue < this.min) return 0;
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else if (this.modelValue > this.max) return 100;
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else return ((this.modelValue - this.min) * 100) / (this.max - this.min);
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},
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rangeStartPosition() {
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if (this.modelValue && this.modelValue[0]) return ((this.modelValue[0] < this.min ? 0 : this.modelValue[0] - this.min) * 100) / (this.max - this.min);
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else return 0;
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},
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rangeEndPosition() {
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if (this.modelValue && this.modelValue.length === 2) return ((this.modelValue[1] > this.max ? 100 : this.modelValue[1] - this.min) * 100) / (this.max - this.min);
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else return 100;
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},
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rangeStartHandleStyle() {
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if (this.horizontal) return { left: this.rangeStartPosition + '%' };
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else return { bottom: this.rangeStartPosition + '%' };
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},
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rangeEndHandleStyle() {
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if (this.horizontal) return { left: this.rangeEndPosition + '%' };
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else return { bottom: this.rangeEndPosition + '%' };
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}
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}
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};
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</script>
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<style>
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.p-slider {
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position: relative;
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}
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.p-slider .p-slider-handle {
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position: absolute;
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cursor: grab;
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touch-action: none;
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display: block;
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}
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.p-slider-range {
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position: absolute;
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display: block;
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}
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.p-slider-horizontal .p-slider-range {
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top: 0;
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left: 0;
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height: 100%;
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}
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.p-slider-horizontal .p-slider-handle {
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top: 50%;
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}
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.p-slider-vertical {
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height: 100px;
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}
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.p-slider-vertical .p-slider-handle {
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left: 50%;
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}
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.p-slider-vertical .p-slider-range {
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bottom: 0;
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left: 0;
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width: 100%;
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}
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</style>
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