Resizable Split View | srgdev.com

Resizable Split View

A Fast, lightweight and easy to use container for two resizable panes(frames), supports minimum size boundaries.JavaScript, HTML, SCSS Download (1KB): split-view.min.js

Demo

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Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut diam quam nulla porttitor massa id.

HTML / JS

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<!DOCTYPE html> <html> <head> ... <script src="/path/to/split-view.js"></script> ... </head> <body> ... <div id="wrap_id" class="split-wrap"> <div id="left_id" class="split-left"> <!-- Insert Your Element(s) Here --> </div> <div id="handle_id" class="split-handle"></div> <div id="right_id" class="split-right"> <!-- Insert Your Element(s) Here --> </div> </div> <script> document.getElementById("sid_wrap").split_view=new SplitView("left_id","handle_id","right_id") </script> ... </body> </html>

SCSS

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$split_handle_width:6px; $split_original_position:20%; $split_background_color: #d3d3d3; .split-wrap{ position: relative; border: thick solid $split_background_color; } .split-left, .split-handle, .split-right{ position: absolute; display: block; height: 100%; top:0; padding: 0; margin: 0; box-sizing: border-box; overflow: auto; } .split-left{ left: 0; width: $split_original_position } .split-handle{ left: $split_original_position; width: $split_handle_width; background-image: url("data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHdpZHRoPSI2IiBoZWlnaHQ9IjE2IiB2aWV3Qm94PSIwIDAgNiAxNiIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48cGF0aCBmaWxsPSIjNzc3IiBkPSJtMyAxMWExLjUgMS41IDAgMCAxIDEuNSAxLjUgMS41IDEuNSAwIDAgMS0xLjUgMS41IDEuNSAxLjUgMCAwIDEtMS41LTEuNSAxLjUgMS41IDAgMCAxIDEuNS0xLjVtMC00LjVhMS41IDEuNSAwIDAgMSAxLjUgMS41IDEuNSAxLjUgMCAwIDEtMS41IDEuNSAxLjUgMS41IDAgMCAxLTEuNS0xLjUgMS41IDEuNSAwIDAgMSAxLjUtMS41bTAtNC41YTEuNSAxLjUgMCAwIDEgMS41IDEuNSAxLjUgMS41IDAgMCAxLTEuNSAxLjUgMS41IDEuNSAwIDAgMS0xLjUtMS41IDEuNSAxLjUgMCAwIDEgMS41LTEuNXoiLz48L3N2Zz4="); background-repeat: no-repeat; background-position: center; background-color: $split_background_color; cursor: col-resize; z-index: 4; } .split-right{ right: 0; left: $split_original_position; margin-left: $split_handle_width; } .split-cursor-resize{ cursor: col-resize; }

split-view.js

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"use strict" /** * @implements {EventListener} * @constructor * @param {string} leftId * @param {string} handleId * @param {string} rightId * @param {number} [leftMin=0] - Left side min. width in percent * @param {number} [rightMin=0] - Right side min. width in percent */ function SplitView(leftId,handleId,rightId,leftMin,rightMin) { /** * @type {Element|undefined} * @private **/ this.p = undefined /** @private **/ this.x = 0 /** @private **/ this.lMin = 1 /** @private **/ this.rMin = 98 /** @private **/ this.drag = false /** @private **/ this.lastPr = 0 | 0 /** @private **/ this.lof = 0 /** @private **/ this.h=document.getElementById(handleId) /** @private **/ this.l=document.getElementById(leftId) /** @private **/ this.r=document.getElementById(rightId) this.hw=this.h.getBoundingClientRect().width if(leftMin && leftMin>0){ this.lMin=leftMin this.lastPr=leftMin this.l.style.width=this.r.style.left=this.h.style.left=leftMin+"%" } if(rightMin && rightMin>0) this.rMin=100-rightMin this.h.addEventListener('mousedown',this,false) this.p=this.h.parentElement } /** * @private * @param {Event|MouseEvent} e * */ SplitView.prototype.handleEvent=function(e){ var pr switch (e.type) { case 'mousedown': this.drag=true this.p.addEventListener('mousemove',this,false) // "window" is because we can end up outside of the parent window.addEventListener('mouseup',this,false) this.opc=this.p.className this.p.className+=" split-cursor-resize" this.lof=this.p.getBoundingClientRect().left+this.hw e.preventDefault() break case 'mousemove': if(this.drag===true){ pr=((e.clientX-this.lof)/this.p.clientWidth*100)|0 if(pr!==this.lastPr && (pr>=this.lMin && pr<=this.rMin)) { this.lastPr=pr this.l.style.width=this.r.style.left=this.h.style.left=pr+"%" } } break case 'mouseup': if(this.drag===false) return this.drag=false this.p.removeEventListener('mousemove',this,false) window.removeEventListener('mouseup',this,false) this.p.className=this.opc break } }