265 lines
8.5 KiB
Vue
265 lines
8.5 KiB
Vue
|
<template>
|
||
|
|
<div class="p-scrollpanel p-component">
|
||
|
|
<div class="p-scrollpanel-wrapper">
|
||
|
|
<div ref="content" class="p-scrollpanel-content" @scroll="moveBar" @mouseenter="moveBar">
|
||
|
|
<slot></slot>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<div ref="xBar" class="p-scrollpanel-bar p-scrollpanel-bar-x" @mousedown="onXBarMouseDown"></div>
|
||
|
|
<div ref="yBar" class="p-scrollpanel-bar p-scrollpanel-bar-y" @mousedown="onYBarMouseDown"></div>
|
||
|
|
</div>
|
||
|
|
</template>
|
||
|
|
|
||
|
|
<script>
|
||
|
|
import {DomHandler} from 'primevue/utils';
|
||
|
|
|
||
|
|
export default {
|
||
|
|
name: 'ScrollPanel',
|
||
|
|
initialized: false,
|
||
|
|
documentResizeListener: null,
|
||
|
|
documentMouseMoveListener: null,
|
||
|
|
documentMouseUpListener: null,
|
||
|
|
frame: null,
|
||
|
|
scrollXRatio: null,
|
||
|
|
scrollYRatio: null,
|
||
|
|
isXBarClicked: false,
|
||
|
|
isYBarClicked: false,
|
||
|
|
lastPageX: null,
|
||
|
|
lastPageY: null,
|
||
|
|
mounted() {
|
||
|
|
if (this.$el.offsetParent) {
|
||
|
|
this.initialize();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
updated() {
|
||
|
|
if (!this.initialized && this.$el.offsetParent) {
|
||
|
|
this.initialize();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
beforeUnmount() {
|
||
|
|
this.unbindDocumentResizeListener();
|
||
|
|
|
||
|
|
if (this.frame) {
|
||
|
|
window.cancelAnimationFrame(this.frame);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
methods: {
|
||
|
|
initialize() {
|
||
|
|
this.moveBar();
|
||
|
|
this.bindDocumentResizeListener();
|
||
|
|
this.calculateContainerHeight();
|
||
|
|
},
|
||
|
|
calculateContainerHeight() {
|
||
|
|
let containerStyles = getComputedStyle(this.$el),
|
||
|
|
xBarStyles = getComputedStyle(this.$refs.xBar),
|
||
|
|
pureContainerHeight = DomHandler.getHeight(this.$el) - parseInt(xBarStyles['height'], 10);
|
||
|
|
|
||
|
|
if (containerStyles['max-height'] !== "none" && pureContainerHeight === 0) {
|
||
|
|
if(this.$refs.content.offsetHeight + parseInt(xBarStyles['height'], 10) > parseInt(containerStyles['max-height'], 10)) {
|
||
|
|
this.$el.style.height = containerStyles['max-height'];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.$el.style.height = this.$refs.content.offsetHeight + parseFloat(containerStyles.paddingTop) + parseFloat(containerStyles.paddingBottom) + parseFloat(containerStyles.borderTopWidth) + parseFloat(containerStyles.borderBottomWidth) + "px";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
moveBar() {
|
||
|
|
/* horizontal scroll */
|
||
|
|
let totalWidth = this.$refs.content.scrollWidth;
|
||
|
|
let ownWidth = this.$refs.content.clientWidth;
|
||
|
|
let bottom = (this.$el.clientHeight - this.$refs.xBar.clientHeight) * -1;
|
||
|
|
|
||
|
|
this.scrollXRatio = ownWidth / totalWidth;
|
||
|
|
|
||
|
|
/* vertical scroll */
|
||
|
|
let totalHeight = this.$refs.content.scrollHeight;
|
||
|
|
let ownHeight = this.$refs.content.clientHeight;
|
||
|
|
let right = (this.$el.clientWidth - this.$refs.yBar.clientWidth) * -1;
|
||
|
|
|
||
|
|
this.scrollYRatio = ownHeight / totalHeight;
|
||
|
|
|
||
|
|
this.frame = this.requestAnimationFrame(() => {
|
||
|
|
if (this.scrollXRatio >= 1) {
|
||
|
|
DomHandler.addClass(this.$refs.xBar, 'p-scrollpanel-hidden');
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
DomHandler.removeClass(this.$refs.xBar, 'p-scrollpanel-hidden');
|
||
|
|
this.$refs.xBar.style.cssText = 'width:' + Math.max(this.scrollXRatio * 100, 10) + '%; left:' + (this.$refs.content.scrollLeft / totalWidth) * 100 + '%;bottom:' + bottom + 'px;';
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.scrollYRatio >= 1) {
|
||
|
|
DomHandler.addClass(this.$refs.yBar, 'p-scrollpanel-hidden');
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
DomHandler.removeClass(this.$refs.yBar, 'p-scrollpanel-hidden');
|
||
|
|
this.$refs.yBar.style.cssText = 'height:' + Math.max(this.scrollYRatio * 100, 10) + '%; top: calc(' + (this.$refs.content.scrollTop / totalHeight) * 100 + '% - ' + this.$refs.xBar.clientHeight + 'px);right:' + right + 'px;';
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
onYBarMouseDown(e) {
|
||
|
|
this.isYBarClicked = true;
|
||
|
|
this.lastPageY = e.pageY;
|
||
|
|
DomHandler.addClass(this.$refs.yBar, 'p-scrollpanel-grabbed');
|
||
|
|
DomHandler.addClass(document.body, 'p-scrollpanel-grabbed');
|
||
|
|
|
||
|
|
this.bindDocumentMouseListeners();
|
||
|
|
e.preventDefault();
|
||
|
|
},
|
||
|
|
onXBarMouseDown(e) {
|
||
|
|
this.isXBarClicked = true;
|
||
|
|
this.lastPageX = e.pageX;
|
||
|
|
DomHandler.addClass(this.$refs.xBar, 'p-scrollpanel-grabbed');
|
||
|
|
DomHandler.addClass(document.body, 'p-scrollpanel-grabbed');
|
||
|
|
|
||
|
|
this.bindDocumentMouseListeners();
|
||
|
|
e.preventDefault();
|
||
|
|
},
|
||
|
|
onDocumentMouseMove(e) {
|
||
|
|
if (this.isXBarClicked) {
|
||
|
|
this.onMouseMoveForXBar(e);
|
||
|
|
}
|
||
|
|
else if (this.isYBarClicked) {
|
||
|
|
this.onMouseMoveForYBar(e);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.onMouseMoveForXBar(e);
|
||
|
|
this.onMouseMoveForYBar(e);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
onMouseMoveForXBar(e) {
|
||
|
|
let deltaX = e.pageX - this.lastPageX;
|
||
|
|
this.lastPageX = e.pageX;
|
||
|
|
|
||
|
|
this.frame = this.requestAnimationFrame(() => {
|
||
|
|
this.$refs.content.scrollLeft += deltaX / this.scrollXRatio;
|
||
|
|
});
|
||
|
|
},
|
||
|
|
onMouseMoveForYBar(e) {
|
||
|
|
let deltaY = e.pageY - this.lastPageY;
|
||
|
|
this.lastPageY = e.pageY;
|
||
|
|
|
||
|
|
this.frame = this.requestAnimationFrame(() => {
|
||
|
|
this.$refs.content.scrollTop += deltaY / this.scrollYRatio;
|
||
|
|
});
|
||
|
|
},
|
||
|
|
onDocumentMouseUp() {
|
||
|
|
DomHandler.removeClass(this.$refs.yBar, 'p-scrollpanel-grabbed');
|
||
|
|
DomHandler.removeClass(this.$refs.xBar, 'p-scrollpanel-grabbed');
|
||
|
|
DomHandler.removeClass(document.body, 'p-scrollpanel-grabbed');
|
||
|
|
|
||
|
|
this.unbindDocumentMouseListeners();
|
||
|
|
this.isXBarClicked = false;
|
||
|
|
this.isYBarClicked = false;
|
||
|
|
},
|
||
|
|
requestAnimationFrame(f) {
|
||
|
|
let frame = window.requestAnimationFrame || this.timeoutFrame;
|
||
|
|
return frame(f);
|
||
|
|
},
|
||
|
|
refresh() {
|
||
|
|
this.moveBar();
|
||
|
|
},
|
||
|
|
scrollTop(scrollTop) {
|
||
|
|
let scrollableHeight = this.$refs.content.scrollHeight - this.$refs.content.clientHeight;
|
||
|
|
scrollTop = scrollTop > scrollableHeight ? scrollableHeight : scrollTop > 0 ? scrollTop : 0;
|
||
|
|
this.$refs.contentscrollTop = scrollTop;
|
||
|
|
},
|
||
|
|
bindDocumentMouseListeners() {
|
||
|
|
if (!this.documentMouseMoveListener) {
|
||
|
|
this.documentMouseMoveListener = (e) => {
|
||
|
|
this.onDocumentMouseMove(e);
|
||
|
|
};
|
||
|
|
|
||
|
|
document.addEventListener('mousemove', this.documentMouseMoveListener);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!this.documentMouseUpListener) {
|
||
|
|
this.documentMouseUpListener = (e) => {
|
||
|
|
this.onDocumentMouseUp(e);
|
||
|
|
};
|
||
|
|
|
||
|
|
document.addEventListener('mouseup', this.documentMouseUpListener);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
unbindDocumentMouseListeners() {
|
||
|
|
if (this.documentMouseMoveListener) {
|
||
|
|
document.removeEventListener('mousemove', this.documentMouseMoveListener);
|
||
|
|
this.documentMouseMoveListener = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(this.documentMouseUpListener) {
|
||
|
|
document.removeEventListener('mouseup', this.documentMouseUpListener);
|
||
|
|
this.documentMouseUpListener = null;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
bindDocumentResizeListener() {
|
||
|
|
if (!this.documentResizeListener) {
|
||
|
|
this.documentResizeListener = () => {
|
||
|
|
this.moveBar();
|
||
|
|
};
|
||
|
|
|
||
|
|
window.addEventListener('resize', this.documentResizeListener);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
unbindDocumentResizeListener() {
|
||
|
|
if(this.documentResizeListener) {
|
||
|
|
window.removeEventListener('resize', this.documentResizeListener);
|
||
|
|
this.documentResizeListener = null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<style>
|
||
|
|
.p-scrollpanel-wrapper {
|
||
|
|
overflow: hidden;
|
||
|
|
width: 100%;
|
||
|
|
height: 100%;
|
||
|
|
position: relative;
|
||
|
|
z-index: 1;
|
||
|
|
float: left;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-scrollpanel-content {
|
||
|
|
height: calc(100% + 18px);
|
||
|
|
width: calc(100% + 18px);
|
||
|
|
padding: 0 18px 18px 0;
|
||
|
|
position: relative;
|
||
|
|
overflow: scroll;
|
||
|
|
box-sizing: border-box;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-scrollpanel-bar {
|
||
|
|
position: relative;
|
||
|
|
background: #c1c1c1;
|
||
|
|
border-radius: 3px;
|
||
|
|
z-index: 2;
|
||
|
|
cursor: pointer;
|
||
|
|
opacity: 0;
|
||
|
|
transition: opacity 0.25s linear;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-scrollpanel-bar-y {
|
||
|
|
width: 9px;
|
||
|
|
top: 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-scrollpanel-bar-x {
|
||
|
|
height: 9px;
|
||
|
|
bottom: 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-scrollpanel-hidden {
|
||
|
|
visibility: hidden;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-scrollpanel:hover .p-scrollpanel-bar,
|
||
|
|
.p-scrollpanel:active .p-scrollpanel-bar {
|
||
|
|
opacity: 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
.p-scrollpanel-grabbed {
|
||
|
|
user-select: none;
|
||
|
|
}
|
||
|
|
</style>
|