File size: 8,135 Bytes
b173115 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 |
import { onMounted, onBeforeUnmount, type Ref, watch } from 'vue'
interface ResizeHandle {
x: number
y: number
}
interface UseResizeAndDragOptions {
onResize?: (width: number, height: number) => void
onDrag?: (left: number, top: number) => void
left?: number
top?: number
width?: number
height?: number
}
export function useResizeAndDrag(
elementRef: Ref<HTMLElement | undefined>,
resizeHandleRef: Ref<HTMLElement | undefined>,
dragHandleRef: Ref<HTMLElement | undefined>,
options?: UseResizeAndDragOptions
) {
const resizeHandle: ResizeHandle = { x: 0, y: 0 }
let startX = 0
let startY = 0
let startWidth = typeof options?.width === 'number' ? options.width : 0
let startHeight = typeof options?.height === 'number' ? options.height : 0
let startLeft = typeof options?.left === 'number' ? options.left : 0
let startTop = typeof options?.top === 'number' ? options.top : 0
let isDragging = false
const handleResizeMouseDown = (e: MouseEvent | TouchEvent) => {
e.stopPropagation()
e.preventDefault()
if (!elementRef.value || !resizeHandleRef.value) return
startX = e instanceof MouseEvent ? e.clientX : e.touches[0].clientX
startY = e instanceof MouseEvent ? e.clientY : e.touches[0].clientY
startWidth = elementRef.value.offsetWidth
startHeight = elementRef.value.offsetHeight
resizeHandle.x = resizeHandleRef.value.offsetLeft
resizeHandle.y = resizeHandleRef.value.offsetTop
document.documentElement.addEventListener('mousemove', handleResizeMouseMove)
document.documentElement.addEventListener('touchmove', handleResizeMouseMove)
document.documentElement.addEventListener('mouseup', handleResizeMouseUp)
document.documentElement.addEventListener('touchend', handleResizeMouseUp)
}
const handleResizeMouseMove = (e: MouseEvent | TouchEvent) => {
if (!elementRef.value || !resizeHandleRef.value) return
let width = startWidth + ((e instanceof MouseEvent ? e.clientX : e.touches[0].clientX) - startX)
let height =
startHeight + ((e instanceof MouseEvent ? e.clientY : e.touches[0].clientY) - startY)
// Check if element exceeds viewport width
if (elementRef.value.offsetLeft + width > window.innerWidth) {
width = window.innerWidth - elementRef.value.offsetLeft
}
// Check if element exceeds viewport height
if (elementRef.value.offsetTop + height > window.innerHeight) {
height = window.innerHeight - elementRef.value.offsetTop
}
elementRef.value.style.width = `${width}px`
elementRef.value.style.height = `${height}px`
if (options?.onResize) {
options.onResize(width, height)
}
}
const handleResizeMouseUp = () => {
document.documentElement.removeEventListener('mousemove', handleResizeMouseMove)
document.documentElement.removeEventListener('touchmove', handleResizeMouseMove)
document.documentElement.removeEventListener('mouseup', handleResizeMouseUp)
document.documentElement.removeEventListener('touchend', handleResizeMouseUp)
}
const handleDragMouseDown = (e: MouseEvent | TouchEvent) => {
e.stopPropagation()
e.preventDefault()
if (!elementRef.value || !dragHandleRef.value) return
isDragging = true
startLeft = elementRef.value.offsetLeft
startTop = elementRef.value.offsetTop
startX = e instanceof MouseEvent ? e.clientX : e.touches[0].clientX
startY = e instanceof MouseEvent ? e.clientY : e.touches[0].clientY
document.documentElement.addEventListener('mousemove', handleDragMouseMove)
document.documentElement.addEventListener('touchmove', handleDragMouseMove)
document.documentElement.addEventListener('mouseup', handleDragMouseUp)
document.documentElement.addEventListener('touchend', handleDragMouseUp)
}
const handleDragMouseMove = (e: MouseEvent | TouchEvent) => {
if (!elementRef.value || !dragHandleRef.value || !isDragging) return
const left = startLeft + ((e instanceof MouseEvent ? e.clientX : e.touches[0].clientX) - startX)
const top = startTop + ((e instanceof MouseEvent ? e.clientY : e.touches[0].clientY) - startY)
// Check if element exceeds viewport width
if (left < 0) {
elementRef.value.style.left = '0px'
} else if (left + elementRef.value.offsetWidth > window.innerWidth) {
elementRef.value.style.left = `${window.innerWidth - elementRef.value.offsetWidth}px`
} else {
elementRef.value.style.left = `${left}px`
}
// Check if element exceeds viewport height
if (top < 0) {
elementRef.value.style.top = '0px'
} else if (top + elementRef.value.offsetHeight > window.innerHeight) {
elementRef.value.style.top = `${window.innerHeight - elementRef.value.offsetHeight}px`
} else {
elementRef.value.style.top = `${top}px`
}
if (options?.onDrag) {
options.onDrag(left, top)
}
}
const handleDragMouseUp = () => {
isDragging = false
document.documentElement.removeEventListener('mousemove', handleDragMouseMove)
document.documentElement.removeEventListener('touchmove', handleDragMouseMove)
document.documentElement.removeEventListener('mouseup', handleDragMouseUp)
document.documentElement.removeEventListener('touchend', handleDragMouseUp)
}
const handleWindowResize = () => {
if (!elementRef.value || !resizeHandleRef.value) return
let left = elementRef.value.offsetLeft
let top = elementRef.value.offsetTop
let width = elementRef.value.offsetWidth
let height = elementRef.value.offsetHeight
// Check if element exceeds viewport width
if (left + width > window.innerWidth) {
left = window.innerWidth - width
if (left < 0) {
left = 0
width = window.innerWidth
}
}
// Check if element exceeds viewport height
if (top + height > window.innerHeight) {
top = window.innerHeight - height
if (top < 0) {
top = 0
height = window.innerHeight
}
}
// Update element position and size
elementRef.value.style.left = `${left}px`
elementRef.value.style.top = `${top}px`
elementRef.value.style.width = `${width}px`
elementRef.value.style.height = `${height}px`
}
onMounted(() => {
if (!elementRef.value || !options) return
if (typeof options.width === 'number') {
elementRef.value.style.width = `${options.width}px`
}
if (typeof options.height === 'number') {
elementRef.value.style.height = `${options.height}px`
}
if (typeof options.left === 'number') {
elementRef.value.style.left = `${options.left}px`
}
if (typeof options.top === 'number') {
elementRef.value.style.top = `${options.top}px`
}
handleWindowResize()
window.addEventListener('resize', handleWindowResize)
})
onBeforeUnmount(() => {
document.documentElement.removeEventListener('mousemove', handleResizeMouseMove)
document.documentElement.removeEventListener('touchmove', handleResizeMouseMove)
document.documentElement.removeEventListener('mouseup', handleResizeMouseUp)
document.documentElement.removeEventListener('touchend', handleResizeMouseUp)
document.documentElement.removeEventListener('mousemove', handleDragMouseMove)
document.documentElement.removeEventListener('touchmove', handleDragMouseMove)
document.documentElement.removeEventListener('mouseup', handleDragMouseUp)
document.documentElement.removeEventListener('touchend', handleDragMouseUp)
window.removeEventListener('resize', handleWindowResize)
})
watch(
() => [elementRef.value, resizeHandleRef.value, dragHandleRef.value],
([element, resizeHandle, dragHandle]) => {
if (element && resizeHandle) {
resizeHandle.addEventListener('mousedown', handleResizeMouseDown)
resizeHandle.addEventListener('touchstart', handleResizeMouseDown)
}
if (element && dragHandle) {
dragHandle.addEventListener('mousedown', handleDragMouseDown)
dragHandle.addEventListener('touchstart', handleDragMouseDown)
}
}
)
return {
handleResizeMouseDown,
handleDragMouseDown
}
}
|