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Styles imported. Components added
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Bahadir Sofuoglu
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commit
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264
components/scrollpanel/ScrollPanel.vue
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264
components/scrollpanel/ScrollPanel.vue
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<template>
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<div class="p-scrollpanel p-component">
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<div class="p-scrollpanel-wrapper">
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<div ref="content" class="p-scrollpanel-content" @scroll="moveBar" @mouseenter="moveBar">
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<slot></slot>
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</div>
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</div>
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<div ref="xBar" class="p-scrollpanel-bar p-scrollpanel-bar-x" @mousedown="onXBarMouseDown"></div>
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<div ref="yBar" class="p-scrollpanel-bar p-scrollpanel-bar-y" @mousedown="onYBarMouseDown"></div>
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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: 'ScrollPanel',
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initialized: false,
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documentResizeListener: null,
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documentMouseMoveListener: null,
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documentMouseUpListener: null,
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frame: null,
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scrollXRatio: null,
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scrollYRatio: null,
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isXBarClicked: false,
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isYBarClicked: false,
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lastPageX: null,
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lastPageY: null,
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mounted() {
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if (this.$el.offsetParent) {
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this.initialize();
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}
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},
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updated() {
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if (!this.initialized && this.$el.offsetParent) {
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this.initialize();
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}
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},
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beforeUnmount() {
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this.unbindDocumentResizeListener();
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if (this.frame) {
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window.cancelAnimationFrame(this.frame);
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}
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},
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methods: {
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initialize() {
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this.moveBar();
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this.bindDocumentResizeListener();
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this.calculateContainerHeight();
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},
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calculateContainerHeight() {
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let containerStyles = getComputedStyle(this.$el),
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xBarStyles = getComputedStyle(this.$refs.xBar),
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pureContainerHeight = DomHandler.getHeight(this.$el) - parseInt(xBarStyles['height'], 10);
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if (containerStyles['max-height'] !== "none" && pureContainerHeight === 0) {
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if(this.$refs.content.offsetHeight + parseInt(xBarStyles['height'], 10) > parseInt(containerStyles['max-height'], 10)) {
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this.$el.style.height = containerStyles['max-height'];
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}
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else {
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this.$el.style.height = this.$refs.content.offsetHeight + parseFloat(containerStyles.paddingTop) + parseFloat(containerStyles.paddingBottom) + parseFloat(containerStyles.borderTopWidth) + parseFloat(containerStyles.borderBottomWidth) + "px";
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}
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}
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},
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moveBar() {
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/* horizontal scroll */
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let totalWidth = this.$refs.content.scrollWidth;
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let ownWidth = this.$refs.content.clientWidth;
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let bottom = (this.$el.clientHeight - this.$refs.xBar.clientHeight) * -1;
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this.scrollXRatio = ownWidth / totalWidth;
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/* vertical scroll */
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let totalHeight = this.$refs.content.scrollHeight;
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let ownHeight = this.$refs.content.clientHeight;
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let right = (this.$el.clientWidth - this.$refs.yBar.clientWidth) * -1;
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this.scrollYRatio = ownHeight / totalHeight;
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this.frame = this.requestAnimationFrame(() => {
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if (this.scrollXRatio >= 1) {
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DomHandler.addClass(this.$refs.xBar, 'p-scrollpanel-hidden');
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}
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else {
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DomHandler.removeClass(this.$refs.xBar, 'p-scrollpanel-hidden');
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this.$refs.xBar.style.cssText = 'width:' + Math.max(this.scrollXRatio * 100, 10) + '%; left:' + (this.$refs.content.scrollLeft / totalWidth) * 100 + '%;bottom:' + bottom + 'px;';
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}
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if (this.scrollYRatio >= 1) {
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DomHandler.addClass(this.$refs.yBar, 'p-scrollpanel-hidden');
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}
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else {
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DomHandler.removeClass(this.$refs.yBar, 'p-scrollpanel-hidden');
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this.$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;';
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}
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});
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},
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onYBarMouseDown(e) {
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this.isYBarClicked = true;
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this.lastPageY = e.pageY;
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DomHandler.addClass(this.$refs.yBar, 'p-scrollpanel-grabbed');
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DomHandler.addClass(document.body, 'p-scrollpanel-grabbed');
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this.bindDocumentMouseListeners();
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e.preventDefault();
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},
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onXBarMouseDown(e) {
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this.isXBarClicked = true;
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this.lastPageX = e.pageX;
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DomHandler.addClass(this.$refs.xBar, 'p-scrollpanel-grabbed');
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DomHandler.addClass(document.body, 'p-scrollpanel-grabbed');
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this.bindDocumentMouseListeners();
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e.preventDefault();
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},
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onDocumentMouseMove(e) {
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if (this.isXBarClicked) {
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this.onMouseMoveForXBar(e);
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}
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else if (this.isYBarClicked) {
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this.onMouseMoveForYBar(e);
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}
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else {
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this.onMouseMoveForXBar(e);
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this.onMouseMoveForYBar(e);
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}
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},
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onMouseMoveForXBar(e) {
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let deltaX = e.pageX - this.lastPageX;
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this.lastPageX = e.pageX;
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this.frame = this.requestAnimationFrame(() => {
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this.$refs.content.scrollLeft += deltaX / this.scrollXRatio;
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});
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},
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onMouseMoveForYBar(e) {
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let deltaY = e.pageY - this.lastPageY;
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this.lastPageY = e.pageY;
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this.frame = this.requestAnimationFrame(() => {
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this.$refs.content.scrollTop += deltaY / this.scrollYRatio;
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});
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},
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onDocumentMouseUp() {
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DomHandler.removeClass(this.$refs.yBar, 'p-scrollpanel-grabbed');
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DomHandler.removeClass(this.$refs.xBar, 'p-scrollpanel-grabbed');
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DomHandler.removeClass(document.body, 'p-scrollpanel-grabbed');
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this.unbindDocumentMouseListeners();
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this.isXBarClicked = false;
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this.isYBarClicked = false;
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},
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requestAnimationFrame(f) {
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let frame = window.requestAnimationFrame || this.timeoutFrame;
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return frame(f);
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},
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refresh() {
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this.moveBar();
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},
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scrollTop(scrollTop) {
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let scrollableHeight = this.$refs.content.scrollHeight - this.$refs.content.clientHeight;
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scrollTop = scrollTop > scrollableHeight ? scrollableHeight : scrollTop > 0 ? scrollTop : 0;
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this.$refs.contentscrollTop = scrollTop;
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},
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bindDocumentMouseListeners() {
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if (!this.documentMouseMoveListener) {
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this.documentMouseMoveListener = (e) => {
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this.onDocumentMouseMove(e);
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};
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document.addEventListener('mousemove', this.documentMouseMoveListener);
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}
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if (!this.documentMouseUpListener) {
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this.documentMouseUpListener = (e) => {
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this.onDocumentMouseUp(e);
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};
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document.addEventListener('mouseup', this.documentMouseUpListener);
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}
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},
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unbindDocumentMouseListeners() {
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if (this.documentMouseMoveListener) {
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document.removeEventListener('mousemove', this.documentMouseMoveListener);
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this.documentMouseMoveListener = null;
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}
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if(this.documentMouseUpListener) {
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document.removeEventListener('mouseup', this.documentMouseUpListener);
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this.documentMouseUpListener = null;
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}
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},
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bindDocumentResizeListener() {
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if (!this.documentResizeListener) {
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this.documentResizeListener = () => {
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this.moveBar();
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};
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window.addEventListener('resize', this.documentResizeListener);
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}
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},
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unbindDocumentResizeListener() {
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if(this.documentResizeListener) {
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window.removeEventListener('resize', this.documentResizeListener);
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this.documentResizeListener = null;
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}
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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-scrollpanel-wrapper {
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overflow: hidden;
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width: 100%;
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height: 100%;
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position: relative;
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z-index: 1;
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float: left;
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}
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.p-scrollpanel-content {
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height: calc(100% + 18px);
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width: calc(100% + 18px);
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padding: 0 18px 18px 0;
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position: relative;
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overflow: scroll;
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box-sizing: border-box;
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}
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.p-scrollpanel-bar {
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position: relative;
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background: #c1c1c1;
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border-radius: 3px;
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z-index: 2;
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cursor: pointer;
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opacity: 0;
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transition: opacity 0.25s linear;
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}
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.p-scrollpanel-bar-y {
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width: 9px;
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top: 0;
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}
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.p-scrollpanel-bar-x {
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height: 9px;
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bottom: 0;
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}
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.p-scrollpanel-hidden {
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visibility: hidden;
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}
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.p-scrollpanel:hover .p-scrollpanel-bar,
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.p-scrollpanel:active .p-scrollpanel-bar {
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opacity: 1;
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}
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.p-scrollpanel-grabbed {
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user-select: none;
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}
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</style>
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