番禺做网站600元,小说网站模板建站,电子商务网站建设与管理 项目任务 教材,辽宁城市建设网站核心原理就是在四条边、四个顶点加上透明的div#xff0c;给不同方向提供按下移动鼠标监听 #xff0c;对应计算宽度高度、坐标变化 特性#xff1a; 支持设置拖拽的最小宽度、最小高度、最大宽度、最大高度可以双击某一条边#xff0c;最大化对应方向的尺寸#xff1b;再…
核心原理就是在四条边、四个顶点加上透明的div给不同方向提供按下移动鼠标监听 对应计算宽度高度、坐标变化 特性 支持设置拖拽的最小宽度、最小高度、最大宽度、最大高度可以双击某一条边最大化对应方向的尺寸再一次双击则会恢复到原始大小 sgDragSize源码
templatediv :class$options.name :disableddisabled draggablefalsediv :classresize-handle resize-${a} draggablefalse mousedown.stopclickResizeHandle(a)dblclick.stopdblclickResizeHandle(a) v-for(a, i) in sizeIndexs :keyi/div/div
/template
script
export default {name: sgDragSize,data() {return {dragSizeIndex: ,originRect: {},dblclickOriginRect: {},sizeIndexs: [top,right,bottom,left,top-left,top-right,bottom-left,bottom-right,],}},props: [disabled,//屏蔽minWidth,//拖拽的最小宽度minHeight,//拖拽的最小高度maxWidth,//拖拽的最大宽度maxHeight,//拖拽的最大高度],watch: {disabled: {handler(newValue, oldValue) {newValue this.__removeWindowEvents();}, deep: true, immediate: true,},},destroyed() {this.__removeWindowEvents();},methods: {clickResizeHandle(d) {this.dragSizeIndex d;this.mousedown(d);},dblclickResizeHandle(d) {let rect this.$el.getBoundingClientRect();rect.width innerWidth rect.height innerHeight (this.dblclickOriginRect rect);this.dblResize(d, rect);},__addWindowEvents() {this.__removeWindowEvents();addEventListener(mousemove, this.mousemove_window);addEventListener(mouseup, this.mouseup_window);},__removeWindowEvents() {removeEventListener(mousemove, this.mousemove_window);removeEventListener(mouseup, this.mouseup_window);},mousedown(e) {this.originRect this.$el.getBoundingClientRect();this.originRect.bottomRightX this.originRect.x this.originRect.width;//右下角坐标.xthis.originRect.bottomRightY this.originRect.y this.originRect.height;//右下角坐标.ythis.$emit(dragStart, e);this.__addWindowEvents();},mousemove_window({ x, y }) {let minWidth this.minWidth || 50, minHeight this.minHeight || 50, maxWidth this.maxWidth || innerWidth, maxHeight this.maxHeight || innerHeight;x 0 (x 0), y 0 (y 0), x innerWidth (x innerWidth), y innerHeight (y innerHeight);let style {};switch (this.dragSizeIndex) {case top-left:style.left x;style.top y;style.width this.originRect.bottomRightX - x;style.width minWidth (style.width minWidth, style.left this.originRect.bottomRightX - minWidth);style.height this.originRect.bottomRightY - y;style.height minHeight (style.height minHeight, style.top this.originRect.bottomRightY - minHeight);break;case top:style.left this.originRect.x;style.top y;style.width this.originRect.width;style.height this.originRect.bottomRightY - y;style.height minHeight (style.height minHeight, style.top this.originRect.bottomRightY - minHeight);break;case top-right:style.left this.originRect.x;style.top y;style.width x - this.originRect.x;style.width minWidth (style.width minWidth, style.left this.originRect.x);style.height this.originRect.bottomRightY - y;style.height minHeight (style.height minHeight, style.top this.originRect.bottomRightY - minHeight);break;case left:style.left x;style.top this.originRect.y;style.width this.originRect.bottomRightX - x;style.width minWidth (style.width minWidth, style.left this.originRect.bottomRightX - minWidth);style.height this.originRect.height;break;case right:style.left this.originRect.x;style.top this.originRect.y;style.width x - this.originRect.x;style.width minWidth (style.width minWidth, style.left this.originRect.x);style.height this.originRect.height;break;case bottom-left:style.left x;style.top this.originRect.y;style.width this.originRect.bottomRightX - x;style.width minWidth (style.width minWidth, style.left this.originRect.bottomRightX - minWidth);style.height y - this.originRect.y;style.height minHeight (style.height minHeight, style.top this.originRect.y);break;case bottom:style.left this.originRect.x;style.top this.originRect.y;style.width this.originRect.width;style.height y - this.originRect.y;style.height minHeight (style.height minHeight, style.top this.originRect.y);break;case bottom-right:style.left this.originRect.x;style.top this.originRect.y;style.width x - this.originRect.x;style.width minWidth (style.width minWidth, style.left this.originRect.x);style.height y - this.originRect.y;style.height minHeight (style.height minHeight, style.top this.originRect.y);break;default:}style.width maxWidth (style.width maxWidth);style.height maxHeight (style.height maxHeight);Object.keys(style).forEach(k style[k] ${style[k]}px);style[transition-property] width,height;style[transition-duration] 0,0;this.$emit(dragging, style);},dblResize(d, rect) {let style {};switch (d) {case top-left:break;case top:case bottom:style.left this.originRect.x;style.top rect.height innerHeight ? this.dblclickOriginRect.y : 0;style.width this.originRect.width;style.height rect.height innerHeight ? this.dblclickOriginRect.height : innerHeight;break;case top-right:break;case left:case right:style.left rect.width innerWidth ? this.dblclickOriginRect.x : 0;style.top this.originRect.y;style.width rect.width innerWidth ? this.dblclickOriginRect.width : innerWidth;style.height this.originRect.height;break;case bottom-left:break;case bottom-right:break;default:}Object.keys(style).forEach(k style[k] ${style[k]}px);style[transition-property] width,height;style[transition-duration] 0.1s,0.1s;this.$emit(dragging, style);},mouseup_window(e) {this.$emit(dragEnd, e);this.__removeWindowEvents();},}
};
/script
style langscss
.sgDragSize {position: absolute;width: 100%;height: 100%;left: 0;top: 0;pointer-events: none;.resize-handle {position: absolute;z-index: 100;display: block;pointer-events: auto;}[disabled] {.resize-handle {pointer-events: none;}}.resize-top {cursor: n-resize;top: -3px;left: 0px;height: 7px;width: 100%;}.resize-right {cursor: e-resize;right: -3px;top: 0px;width: 7px;height: 100%;}.resize-bottom {cursor: s-resize;bottom: -3px;left: 0px;height: 7px;width: 100%;}.resize-left {cursor: w-resize;left: -3px;top: 0px;width: 7px;height: 100%;}.resize-top-right {cursor: ne-resize;width: 16px;height: 16px;right: -8px;top: -8px;}.resize-bottom-right {cursor: se-resize;width: 20px;height: 20px;right: -8px;bottom: -8px;background: url(/static/img/desktop/sgDragSize/resize_corner.png) no-repeat;}.resize-bottom-left {cursor: sw-resize;width: 16px;height: 16px;left: -8px;bottom: -8px;}.resize-top-left {cursor: nw-resize;width: 16px;height: 16px;left: -8px;top: -8px;}
}
/style
应用
templatedivdiv classbox :stylestylelabel最小尺寸宽度400px高度200px/labelsgDragSize draggingd style d :minWidth400 :minHeight200 //div/div
/template
script
import sgDragSize from /vue/components/admin/sgDragSize;
export default {components: {sgDragSize,},data() {return {style: {height: 500px,width: 800px,left: 100px,top: 100px,},}},
};
/script
style langscss scoped
.box {position: absolute;display: flex;justify-content: center;align-items: center;background-color: #409EFF55;box-sizing: border-box;border: 1px solid #409EFF;label {user-select: none;color: #409EFF;}
}
/style
