react-pannable - npm Package Compare versions

Comparing version 0.3.5 to 0.4.0

dist/react-pannable.min.js

@@ -1,1 +0,1 @@
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i="y"===n?["y","height"]:["x","width"],o=i[0],r=i[1],a=t[o]-e[o];return-.25*e[r]<a+t[r]&&a<1.25*e[r]}return I(t,e,"x")&&I(t,e,"y")}A.defaultProps={direction:"vertical",width:-1,height:-1,rowSpacing:0,columnSpacing:0,itemCount:0,itemWidth:0,itemHeight:0,renderItem:function(){return null},visibleRect:{x:0,y:0,width:0,height:0},onResize:function(){}};var k=function(o){function t(){for(var t,e=arguments.length,n=Array(e),i=0;i<e;i++)n[i]=arguments[i];return(t=o.call.apply(o,[this].concat(n))||this).resizeRef=b.createRef(),t}r(t,o);var e=t.prototype;return e.componentDidMount=function(){this._calculateSize()},e.componentDidUpdate=function(t){var e=this.props;t.width===e.width&&t.height===e.height&&t.hash===e.hash||this._calculateSize()},e._calculateSize=function(){var t=this.props,e=t.width,n=t.height,i=t.hash;(0,t.onResize)(e<0||n<0?(0,t.getSizeByHash)(i)||s(this.resizeRef.current):{width:e,height:n},i)},e.render=function(){var t=this.props,e=t.width,n=t.height,i=t.children;return b.createElement("div",{ref:this.resizeRef,style:{position:"absolute",width:e<0?"auto":e,height:n<0?"auto":n}},"function"==typeof i?i(this):i)},t}(b.PureComponent);k.defaultProps={width:-1,height:-1,hash:"Item",getSizeByHash:function(){return null},onResize:function(){}};var L=function(o){function t(){for(var t,e=arguments.length,n=Array(e),i=0;i<e;i++)n[i]=arguments[i];return(t=o.call.apply(o,[this].concat(n))||this).state={size:{width:0,height:0},layoutAttrs:[],itemHashList:[],itemSizeDict:{}},t}r(t,o);var e=t.prototype;return e.componentDidMount=function(){this._calculateLayout()},e.componentDidUpdate=function(t){var e=this.props;t.direction===e.direction&&t.width===e.width&&t.height===e.height&&t.spacing===e.spacing&&t.itemCount===e.itemCount&&t.estimatedItemWidth===e.estimatedItemWidth&&t.estimatedItemHeight===e.estimatedItemHeight||this._calculateLayout()},e.getSize=function(){return this.state.size},e.getItemRect=function(t){var e=this.state.layoutAttrs[t.itemIndex];return e?{x:e.x,y:e.y,width:e.width,height:e.height}:null},e._calculateLayout=function(g,p,v){this.setState(function(t,e){var n=e.direction,i=e.spacing,o=e.itemCount,r=e.estimatedItemWidth,a=e.estimatedItemHeight,s=e.onResize,l=t.itemHashList,c=t.itemSizeDict,d=l,u=c;if(void 0!==g){var h;if(d[g]===p)return null;u=x({},u,((h={})[(d=[].concat(d))[g]=p]=v,h))}var f=function(t,e,n,i,o,r){for(var a,s="horizontal"===r?["y","x","height","width"]:["x","y","width","height"],l=s[0],c=s[1],d=s[2],u=s[3],h=0,f=0,g=[],p=0;p<i;p++){var v;0<p&&(f+=o);var m=e[p],y=n[m]||t;g.push(((v={})[l]=0,v[c]=f,v[d]=y[d],v[u]=y[u],v.itemIndex=p,v)),f+=y[u],h<y[d]&&(h=y[d])}return{size:(a={},a[d]=h,a[u]=f,a),layoutAttrs:g}}({width:r,height:a},d,u,o,i,n);return d!==l&&(f.itemHashList=d),u!==c&&(f.itemSizeDict=u),t.size.width===f.size.width&&t.size.height===f.size.height||s(x({},f.size)),f})},e.render=function(){var d=this,t=this.props,u=t.direction,h=t.width,f=t.height,e=t.itemCount,g=t.visibleRect,p=t.renderItem,n=t.children,i=this.state,v=i.itemSizeDict,m=i.layoutAttrs;if("function"==typeof n)return n(this);for(var y=[],o=function(n){var t=m[n];if(t&&function t(e,n,i){if(i){var o="y"===i?["y","height"]:["x","width"],r=o[0],a=o[1],s=e[r]-n[r];return-.25*n[a]<s+e[a]&&s<1.25*n[a]}return t(e,n,"x")&&t(e,n,"y")}(t,g)){var e=p(x({},t,{Item:k})),i=e.type,o=e.props,r=o.onResize,a=o.style,s=w(o,["onResize","style"]),l=e.key||t.itemIndex,c=x({position:"absolute",left:t.x,top:t.y,width:t.width,height:t.height},a);e=i===k?(s.onResize=function(t,e){d._calculateLayout(n,e,t),r(t)},s.getSizeByHash=function(t){return v[t]},"horizontal"===u?s.height=f:s.width=h,b.createElement("div",{key:l,style:c},b.createElement(i,s))):b.createElement(i,x({},s,{key:l,style:c})),y.push(e)}},r=0;r<e;r++)o(r);return b.createElement(b.Fragment,null,y)},t}(b.PureComponent);L.defaultProps={direction:"vertical",width:-1,height:-1,spacing:0,itemCount:0,estimatedItemWidth:0,estimatedItemHeight:0,renderItem:function(){return null},visibleRect:{x:0,y:0,width:0,height:0},onResize:function(){}};var H=function(o){function t(){for(var t,e=arguments.length,n=Array(e),i=0;i<e;i++)n[i]=arguments[i];return(t=o.call.apply(o,[this].concat(n))||this).state={size:{width:0,height:0}},t.resizeRef=b.createRef(),t}r(t,o);var e=t.prototype;return e.componentDidMount=function(){this._calculateSize()},e.componentDidUpdate=function(t){t.width===this.props.width&&t.height===this.props.height||this._calculateSize()},e.componentWillUnmount=function(){this._resizeNode&&(m.uninstall(this._resizeNode),this._resizeNode=void 0)},e._calculateSize=function(){var t,e=this,n=this.props,i=n.width,o=n.height;if(i<0||o<0){if(!this._resizeNode){var r=this.resizeRef.current;if(!r)return;return void m.listenTo(this._resizeNode=r,function(){return e._calculateSize()})}t=s(this._resizeNode)}else this._resizeNode&&(m.uninstall(this._resizeNode),this._resizeNode=void 0),t={width:i,height:o};this.setState({size:t})},e.render=function(){var t=this.props,e=t.width,n=t.height;return b.createElement("div",{ref:this.resizeRef,style:{width:e<0?"100%":e,height:n<0?"100%":n}},(0,t.children)(this.state.size))},t}(b.Component);H.defaultProps={children:function(){return null},width:-1,height:-1},t.Pad=n,t.Pannable=h,t.GeneralContent=R,t.GridContent=A,t.ListContent=L,t.ItemContent=k,t.AutoResizing=H,Object.defineProperty(t,"__esModule",{value:!0})});

es/GeneralContent.js

@@ -30,3 +30,7 @@ import _inheritsLoose from "@babel/runtime/helpers/esm/inheritsLoose";
   _proto.componentDidUpdate = function componentDidUpdate(prevProps) {
-    if (prevProps.width !== this.props.width || prevProps.height !== this.props.height) {
+    var _this$props = this.props,
+        width = _this$props.width,
+        height = _this$props.height;
+
+    if (prevProps.width !== width || prevProps.height !== height) {
       this._calculateSize();
@@ -46,6 +50,6 @@ }
 
-    var _this$props = this.props,
-        width = _this$props.width,
-        height = _this$props.height,
-        onResize = _this$props.onResize;
+    var _this$props2 = this.props,
+        width = _this$props2.width,
+        height = _this$props2.height,
+        onResize = _this$props2.onResize;
     var size;
@@ -85,6 +89,6 @@
   _proto.render = function render() {
-    var _this$props2 = this.props,
-        width = _this$props2.width,
-        height = _this$props2.height,
-        children = _this$props2.children;
+    var _this$props3 = this.props,
+        width = _this$props3.width,
+        height = _this$props3.height,
+        children = _this$props3.children;
     var style = {
@@ -91,0 +95,0 @@ position: 'absolute',

es/GridContent.js

@@ -0,1 +1,2 @@
+import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
 import _extends from "@babel/runtime/helpers/esm/extends";
@@ -34,10 +35,2 @@ import _inheritsLoose from "@babel/runtime/helpers/esm/inheritsLoose";
 
-  _proto.getSize = function getSize() {
-    return this.state.size;
-  };
-
-  _proto.getCount = function getCount() {
-    return this.state.count;
-  };
-
   _proto.componentDidMount = function componentDidMount() {
@@ -63,30 +56,8 @@ this._calculateLayout();
 
-  _proto._calculateLayout = function _calculateLayout() {
-    this.setState(function (state, props) {
-      var direction = props.direction,
-          width = props.width,
-          height = props.height,
-          rowSpacing = props.rowSpacing,
-          columnSpacing = props.columnSpacing,
-          itemCount = props.itemCount,
-          itemWidth = props.itemWidth,
-          itemHeight = props.itemHeight,
-          onResize = props.onResize;
-      var nextState = calculateLayout({
-        width: itemWidth,
-        height: itemHeight
-      }, itemCount, {
-        row: rowSpacing,
-        column: columnSpacing
-      }, {
-        width: width,
-        height: height
-      }, direction);
+  _proto.getSize = function getSize() {
+    return this.state.size;
+  };
 
-      if (state.size.width !== nextState.size.width || state.size.height !== nextState.size.height) {
-        onResize(nextState.size);
-      }
-
-      return nextState;
-    });
+  _proto.getCount = function getCount() {
+    return this.state.count;
   };
@@ -124,2 +95,32 @@
 
+  _proto._calculateLayout = function _calculateLayout() {
+    this.setState(function (state, props) {
+      var direction = props.direction,
+          width = props.width,
+          height = props.height,
+          rowSpacing = props.rowSpacing,
+          columnSpacing = props.columnSpacing,
+          itemCount = props.itemCount,
+          itemWidth = props.itemWidth,
+          itemHeight = props.itemHeight,
+          onResize = props.onResize;
+      var nextState = calculateLayout({
+        width: itemWidth,
+        height: itemHeight
+      }, itemCount, {
+        row: rowSpacing,
+        column: columnSpacing
+      }, {
+        width: width,
+        height: height
+      }, direction);
+
+      if (state.size.width !== nextState.size.width || state.size.height !== nextState.size.height) {
+        onResize(_extends({}, nextState.size));
+      }
+
+      return nextState;
+    });
+  };
+
   _proto.render = function render() {
@@ -137,3 +138,3 @@ var _this$props2 = this.props,
 
-    var grids = [];
+    var items = [];
 
@@ -144,6 +145,12 @@ for (var itemIndex = 0; itemIndex < itemCount; itemIndex++) {
       if (attrs && needsRender(attrs, visibleRect)) {
-        var element = renderItem(attrs);
+        var element = renderItem(_extends({}, attrs));
+        var Item = element.type;
+
+        var _element$props = element.props,
+            style = _element$props.style,
+            props = _objectWithoutPropertiesLoose(_element$props, ["style"]);
+
         var key = element.key || attrs.itemIndex;
 
-        var style = _extends({
+        var itemStyle = _extends({
           position: 'absolute',
@@ -154,13 +161,13 @@ left: attrs.x,
           height: attrs.height
-        }, element.props.style);
+        }, style);
 
-        element = React.cloneElement(element, {
+        element = React.createElement(Item, _extends({}, props, {
           key: key,
-          style: style
-        });
-        grids.push(element);
+          style: itemStyle
+        }));
+        items.push(element);
       }
     }
 
-    return React.createElement(React.Fragment, null, grids);
+    return React.createElement(React.Fragment, null, items);
   };
@@ -255,21 +262,19 @@
 
-  if (countRow > 0) {
-    for (var rowIndex = 0; rowIndex < countRow; rowIndex++) {
-      if (rowIndex > 0) {
-        sizeHeight += spacing[row] + itemSize[height];
-      }
+  for (var rowIndex = 0; rowIndex < countRow; rowIndex++) {
+    if (rowIndex > 0) {
+      sizeHeight += spacing[row];
+    }
 
-      for (var columnIndex = 0; columnIndex < countColumn; columnIndex++) {
-        var itemIndex = columnIndex + rowIndex * countColumn;
-        var attrX = 0;
+    for (var columnIndex = 0; columnIndex < countColumn; columnIndex++) {
+      var itemIndex = columnIndex + rowIndex * countColumn;
+      var attrX = 0;
 
-        if (countColumn > 1) {
-          attrX += Math.round(columnIndex * ((sizeWidth - itemSize[width]) / (countColumn - 1)));
-        }
+      if (countColumn > 1) {
+        attrX += Math.round(columnIndex * ((sizeWidth - itemSize[width]) / (countColumn - 1)));
+      }
 
-        if (itemIndex < itemCount) {
-          var _layoutAttrs$push;
+      if (itemIndex < itemCount) {
+        var _layoutAttrs$push;
 
-          layoutAttrs.push((_layoutAttrs$push = {}, _layoutAttrs$push[x] = attrX, _layoutAttrs$push[y] = sizeHeight, _layoutAttrs$push[width] = itemSize[width], _layoutAttrs$push[height] = itemSize[height], _layoutAttrs$push[row + 'Index'] = rowIndex, _layoutAttrs$push[column + 'Index'] = columnIndex, _layoutAttrs$push.itemIndex = itemIndex, _layoutAttrs$push));
-        }
+        layoutAttrs.push((_layoutAttrs$push = {}, _layoutAttrs$push[x] = attrX, _layoutAttrs$push[y] = sizeHeight, _layoutAttrs$push[width] = itemSize[width], _layoutAttrs$push[height] = itemSize[height], _layoutAttrs$push[row + 'Index'] = rowIndex, _layoutAttrs$push[column + 'Index'] = columnIndex, _layoutAttrs$push.itemIndex = itemIndex, _layoutAttrs$push));
       }
@@ -276,0 +281,0 @@ }

es/index.js

@@ -5,3 +5,5 @@ import Pad from './Pad';
 import GridContent from './GridContent';
+import ListContent from './ListContent';
+import ItemContent from './ItemContent';
 import AutoResizing from './AutoResizing';
-export { Pad, Pannable, GeneralContent, GridContent, AutoResizing };
+export { Pad, Pannable, GeneralContent, GridContent, ListContent, ItemContent, AutoResizing };

es/ListContent.js

@@ -0,4 +1,6 @@
+import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
 import _extends from "@babel/runtime/helpers/esm/extends";
 import _inheritsLoose from "@babel/runtime/helpers/esm/inheritsLoose";
 import React from 'react';
+import ItemContent from './ItemContent';
 
@@ -32,6 +34,2 @@ var ListContent =
 
-  _proto.getSize = function getSize() {
-    return this.state.size;
-  };
-
   _proto.componentDidMount = function componentDidMount() {
@@ -56,7 +54,26 @@ this._calculateLayout();
 
-  _proto._calculateLayout = function _calculateLayout() {
+  _proto.getSize = function getSize() {
+    return this.state.size;
+  };
+
+  _proto.getItemRect = function getItemRect(_ref) {
+    var itemIndex = _ref.itemIndex;
+    var layoutAttrs = this.state.layoutAttrs;
+    var attrs = layoutAttrs[itemIndex];
+
+    if (!attrs) {
+      return null;
+    }
+
+    return {
+      x: attrs.x,
+      y: attrs.y,
+      width: attrs.width,
+      height: attrs.height
+    };
+  };
+
+  _proto._calculateLayout = function _calculateLayout(itemIndex, itemHash, itemSize) {
     this.setState(function (state, props) {
       var direction = props.direction,
-          width = props.width,
-          height = props.height,
           spacing = props.spacing,
@@ -69,12 +86,32 @@ itemCount = props.itemCount,
           itemSizeDict = state.itemSizeDict;
+      var nextItemHashList = itemHashList;
+      var nextItemSizeDict = itemSizeDict;
+
+      if (itemIndex !== undefined) {
+        var _extends2;
+
+        if (nextItemHashList[itemIndex] === itemHash) {
+          return null;
+        }
+
+        nextItemHashList = [].concat(nextItemHashList);
+        nextItemHashList[itemIndex] = itemHash;
+        nextItemSizeDict = _extends({}, nextItemSizeDict, (_extends2 = {}, _extends2[itemHash] = itemSize, _extends2));
+      }
+
       var nextState = calculateLayout({
         width: estimatedItemWidth,
         height: estimatedItemHeight
-      }, itemHashList, itemSizeDict, itemCount, spacing, {
-        width: width,
-        height: height
-      }, direction);
+      }, nextItemHashList, nextItemSizeDict, itemCount, spacing, direction);
 
+      if (nextItemHashList !== itemHashList) {
+        nextState.itemHashList = nextItemHashList;
+      }
+
+      if (nextItemSizeDict !== itemSizeDict) {
+        nextState.itemSizeDict = nextItemSizeDict;
+      }
+
       if (state.size.width !== nextState.size.width || state.size.height !== nextState.size.height) {
-        onResize(nextState.size);
+        onResize(_extends({}, nextState.size));
       }
@@ -87,3 +124,8 @@
   _proto.render = function render() {
+    var _this2 = this;
+
     var _this$props2 = this.props,
+        direction = _this$props2.direction,
+        width = _this$props2.width,
+        height = _this$props2.height,
         itemCount = _this$props2.itemCount,
@@ -93,3 +135,5 @@ visibleRect = _this$props2.visibleRect,
         children = _this$props2.children;
-    var layoutAttrs = this.state.layoutAttrs;
+    var _this$state = this.state,
+        itemSizeDict = _this$state.itemSizeDict,
+        layoutAttrs = _this$state.layoutAttrs;
 
@@ -100,12 +144,21 @@ if (typeof children === 'function') {
 
-    var list = [];
+    var items = [];
 
-    for (var itemIndex = 0; itemIndex < itemCount; itemIndex++) {
+    var _loop = function _loop(itemIndex) {
       var attrs = layoutAttrs[itemIndex];
 
       if (attrs && needsRender(attrs, visibleRect)) {
-        var element = renderItem(attrs);
+        var element = renderItem(_extends({}, attrs, {
+          Item: ItemContent
+        }));
+        var Item = element.type;
+
+        var _element$props = element.props,
+            onResize = _element$props.onResize,
+            style = _element$props.style,
+            props = _objectWithoutPropertiesLoose(_element$props, ["onResize", "style"]);
+
         var key = element.key || attrs.itemIndex;
 
-        var style = _extends({
+        var itemStyle = _extends({
           position: 'absolute',
@@ -116,13 +169,41 @@ left: attrs.x,
           height: attrs.height
-        }, element.props.style);
+        }, style);
 
-        element = React.cloneElement(element, {
-          key: key,
-          style: style
-        });
-        list.push(element);
+        if (Item === ItemContent) {
+          props.onResize = function (size, hash) {
+            _this2._calculateLayout(itemIndex, hash, size);
+
+            onResize(size);
+          };
+
+          props.getSizeByHash = function (hash) {
+            return itemSizeDict[hash];
+          };
+
+          if (direction === 'horizontal') {
+            props.height = height;
+          } else {
+            props.width = width;
+          }
+
+          element = React.createElement("div", {
+            key: key,
+            style: itemStyle
+          }, React.createElement(Item, props));
+        } else {
+          element = React.createElement(Item, _extends({}, props, {
+            key: key,
+            style: itemStyle
+          }));
+        }
+
+        items.push(element);
       }
+    };
+
+    for (var itemIndex = 0; itemIndex < itemCount; itemIndex++) {
+      _loop(itemIndex);
     }
 
-    return React.createElement(React.Fragment, null, list);
+    return React.createElement(React.Fragment, null, items);
   };
@@ -156,5 +237,5 @@
   if (name) {
-    var _ref = name === 'y' ? ['y', 'height'] : ['x', 'width'],
-        x = _ref[0],
-        width = _ref[1];
+    var _ref2 = name === 'y' ? ['y', 'height'] : ['x', 'width'],
+        x = _ref2[0],
+        width = _ref2[1];
 
@@ -168,2 +249,36 @@ var dx = rect[x] - vRect[x];
 
-function calculateLayout(itemSize, itemHashList, itemSizeDict, itemCount, spacing, size, direction) {}
+function calculateLayout(estimatedItemSize, itemHashList, itemSizeDict, itemCount, spacing, direction) {
+  var _size;
+
+  var _ref3 = direction === 'horizontal' ? ['y', 'x', 'height', 'width'] : ['x', 'y', 'width', 'height'],
+      x = _ref3[0],
+      y = _ref3[1],
+      width = _ref3[2],
+      height = _ref3[3];
+
+  var sizeWidth = 0;
+  var sizeHeight = 0;
+  var layoutAttrs = [];
+
+  for (var itemIndex = 0; itemIndex < itemCount; itemIndex++) {
+    var _layoutAttrs$push;
+
+    if (itemIndex > 0) {
+      sizeHeight += spacing;
+    }
+
+    var itemHash = itemHashList[itemIndex];
+    var itemSize = itemSizeDict[itemHash] || estimatedItemSize;
+    layoutAttrs.push((_layoutAttrs$push = {}, _layoutAttrs$push[x] = 0, _layoutAttrs$push[y] = sizeHeight, _layoutAttrs$push[width] = itemSize[width], _layoutAttrs$push[height] = itemSize[height], _layoutAttrs$push.itemIndex = itemIndex, _layoutAttrs$push));
+    sizeHeight += itemSize[height];
+
+    if (sizeWidth < itemSize[width]) {
+      sizeWidth = itemSize[width];
+    }
+  }
+
+  return {
+    size: (_size = {}, _size[width] = sizeWidth, _size[height] = sizeHeight, _size),
+    layoutAttrs: layoutAttrs
+  };
+}

lib/GeneralContent.js

@@ -40,3 +40,7 @@ "use strict";
   _proto.componentDidUpdate = function componentDidUpdate(prevProps) {
-    if (prevProps.width !== this.props.width || prevProps.height !== this.props.height) {
+    var _this$props = this.props,
+        width = _this$props.width,
+        height = _this$props.height;
+
+    if (prevProps.width !== width || prevProps.height !== height) {
       this._calculateSize();
@@ -57,6 +61,6 @@ }
 
-    var _this$props = this.props,
-        width = _this$props.width,
-        height = _this$props.height,
-        onResize = _this$props.onResize;
+    var _this$props2 = this.props,
+        width = _this$props2.width,
+        height = _this$props2.height,
+        onResize = _this$props2.onResize;
     var size;
@@ -99,6 +103,6 @@
   _proto.render = function render() {
-    var _this$props2 = this.props,
-        width = _this$props2.width,
-        height = _this$props2.height,
-        children = _this$props2.children;
+    var _this$props3 = this.props,
+        width = _this$props3.width,
+        height = _this$props3.height,
+        children = _this$props3.children;
     var style = {
@@ -105,0 +109,0 @@ position: 'absolute',

lib/GridContent.js

@@ -8,2 +8,4 @@ "use strict";
 
+var _objectWithoutPropertiesLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutPropertiesLoose"));
+
 var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
@@ -44,10 +46,2 @@
 
-  _proto.getSize = function getSize() {
-    return this.state.size;
-  };
-
-  _proto.getCount = function getCount() {
-    return this.state.count;
-  };
-
   _proto.componentDidMount = function componentDidMount() {
@@ -73,30 +67,8 @@ this._calculateLayout();
 
-  _proto._calculateLayout = function _calculateLayout() {
-    this.setState(function (state, props) {
-      var direction = props.direction,
-          width = props.width,
-          height = props.height,
-          rowSpacing = props.rowSpacing,
-          columnSpacing = props.columnSpacing,
-          itemCount = props.itemCount,
-          itemWidth = props.itemWidth,
-          itemHeight = props.itemHeight,
-          onResize = props.onResize;
-      var nextState = calculateLayout({
-        width: itemWidth,
-        height: itemHeight
-      }, itemCount, {
-        row: rowSpacing,
-        column: columnSpacing
-      }, {
-        width: width,
-        height: height
-      }, direction);
+  _proto.getSize = function getSize() {
+    return this.state.size;
+  };
 
-      if (state.size.width !== nextState.size.width || state.size.height !== nextState.size.height) {
-        onResize(nextState.size);
-      }
-
-      return nextState;
-    });
+  _proto.getCount = function getCount() {
+    return this.state.count;
   };
@@ -134,2 +106,32 @@
 
+  _proto._calculateLayout = function _calculateLayout() {
+    this.setState(function (state, props) {
+      var direction = props.direction,
+          width = props.width,
+          height = props.height,
+          rowSpacing = props.rowSpacing,
+          columnSpacing = props.columnSpacing,
+          itemCount = props.itemCount,
+          itemWidth = props.itemWidth,
+          itemHeight = props.itemHeight,
+          onResize = props.onResize;
+      var nextState = calculateLayout({
+        width: itemWidth,
+        height: itemHeight
+      }, itemCount, {
+        row: rowSpacing,
+        column: columnSpacing
+      }, {
+        width: width,
+        height: height
+      }, direction);
+
+      if (state.size.width !== nextState.size.width || state.size.height !== nextState.size.height) {
+        onResize((0, _extends2.default)({}, nextState.size));
+      }
+
+      return nextState;
+    });
+  };
+
   _proto.render = function render() {
@@ -147,3 +149,3 @@ var _this$props2 = this.props,
 
-    var grids = [];
+    var items = [];
 
@@ -154,5 +156,9 @@ for (var itemIndex = 0; itemIndex < itemCount; itemIndex++) {
       if (attrs && needsRender(attrs, visibleRect)) {
-        var element = renderItem(attrs);
+        var element = renderItem((0, _extends2.default)({}, attrs));
+        var Item = element.type;
+        var _element$props = element.props,
+            style = _element$props.style,
+            props = (0, _objectWithoutPropertiesLoose2.default)(_element$props, ["style"]);
         var key = element.key || attrs.itemIndex;
-        var style = (0, _extends2.default)({
+        var itemStyle = (0, _extends2.default)({
           position: 'absolute',
@@ -163,12 +169,12 @@ left: attrs.x,
           height: attrs.height
-        }, element.props.style);
-        element = _react.default.cloneElement(element, {
+        }, style);
+        element = _react.default.createElement(Item, (0, _extends2.default)({}, props, {
           key: key,
-          style: style
-        });
-        grids.push(element);
+          style: itemStyle
+        }));
+        items.push(element);
       }
     }
 
-    return _react.default.createElement(_react.default.Fragment, null, grids);
+    return _react.default.createElement(_react.default.Fragment, null, items);
   };
@@ -263,21 +269,19 @@
 
-  if (countRow > 0) {
-    for (var rowIndex = 0; rowIndex < countRow; rowIndex++) {
-      if (rowIndex > 0) {
-        sizeHeight += spacing[row] + itemSize[height];
-      }
+  for (var rowIndex = 0; rowIndex < countRow; rowIndex++) {
+    if (rowIndex > 0) {
+      sizeHeight += spacing[row];
+    }
 
-      for (var columnIndex = 0; columnIndex < countColumn; columnIndex++) {
-        var itemIndex = columnIndex + rowIndex * countColumn;
-        var attrX = 0;
+    for (var columnIndex = 0; columnIndex < countColumn; columnIndex++) {
+      var itemIndex = columnIndex + rowIndex * countColumn;
+      var attrX = 0;
 
-        if (countColumn > 1) {
-          attrX += Math.round(columnIndex * ((sizeWidth - itemSize[width]) / (countColumn - 1)));
-        }
+      if (countColumn > 1) {
+        attrX += Math.round(columnIndex * ((sizeWidth - itemSize[width]) / (countColumn - 1)));
+      }
 
-        if (itemIndex < itemCount) {
-          var _layoutAttrs$push;
+      if (itemIndex < itemCount) {
+        var _layoutAttrs$push;
 
-          layoutAttrs.push((_layoutAttrs$push = {}, _layoutAttrs$push[x] = attrX, _layoutAttrs$push[y] = sizeHeight, _layoutAttrs$push[width] = itemSize[width], _layoutAttrs$push[height] = itemSize[height], _layoutAttrs$push[row + 'Index'] = rowIndex, _layoutAttrs$push[column + 'Index'] = columnIndex, _layoutAttrs$push.itemIndex = itemIndex, _layoutAttrs$push));
-        }
+        layoutAttrs.push((_layoutAttrs$push = {}, _layoutAttrs$push[x] = attrX, _layoutAttrs$push[y] = sizeHeight, _layoutAttrs$push[width] = itemSize[width], _layoutAttrs$push[height] = itemSize[height], _layoutAttrs$push[row + 'Index'] = rowIndex, _layoutAttrs$push[column + 'Index'] = columnIndex, _layoutAttrs$push.itemIndex = itemIndex, _layoutAttrs$push));
       }
@@ -284,0 +288,0 @@ }

lib/index.js

@@ -23,4 +23,12 @@ "use strict";
 
+var _ListContent = _interopRequireDefault(require("./ListContent"));
+
+exports.ListContent = _ListContent.default;
+
+var _ItemContent = _interopRequireDefault(require("./ItemContent"));
+
+exports.ItemContent = _ItemContent.default;
+
 var _AutoResizing = _interopRequireDefault(require("./AutoResizing"));
 
 exports.AutoResizing = _AutoResizing.default;

lib/ListContent.js

@@ -8,4 +8,6 @@ "use strict";
 
-var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
+var _objectWithoutPropertiesLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutPropertiesLoose"));
 
+var _extends3 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
+
 var _inheritsLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/inheritsLoose"));
@@ -15,2 +17,4 @@
 
+var _ItemContent = _interopRequireDefault(require("./ItemContent"));
+
 var ListContent =
@@ -43,6 +47,2 @@ /*#__PURE__*/
 
-  _proto.getSize = function getSize() {
-    return this.state.size;
-  };
-
   _proto.componentDidMount = function componentDidMount() {
@@ -67,7 +67,26 @@ this._calculateLayout();
 
-  _proto._calculateLayout = function _calculateLayout() {
+  _proto.getSize = function getSize() {
+    return this.state.size;
+  };
+
+  _proto.getItemRect = function getItemRect(_ref) {
+    var itemIndex = _ref.itemIndex;
+    var layoutAttrs = this.state.layoutAttrs;
+    var attrs = layoutAttrs[itemIndex];
+
+    if (!attrs) {
+      return null;
+    }
+
+    return {
+      x: attrs.x,
+      y: attrs.y,
+      width: attrs.width,
+      height: attrs.height
+    };
+  };
+
+  _proto._calculateLayout = function _calculateLayout(itemIndex, itemHash, itemSize) {
     this.setState(function (state, props) {
       var direction = props.direction,
-          width = props.width,
-          height = props.height,
           spacing = props.spacing,
@@ -80,12 +99,32 @@ itemCount = props.itemCount,
           itemSizeDict = state.itemSizeDict;
+      var nextItemHashList = itemHashList;
+      var nextItemSizeDict = itemSizeDict;
+
+      if (itemIndex !== undefined) {
+        var _extends2;
+
+        if (nextItemHashList[itemIndex] === itemHash) {
+          return null;
+        }
+
+        nextItemHashList = [].concat(nextItemHashList);
+        nextItemHashList[itemIndex] = itemHash;
+        nextItemSizeDict = (0, _extends3.default)({}, nextItemSizeDict, (_extends2 = {}, _extends2[itemHash] = itemSize, _extends2));
+      }
+
       var nextState = calculateLayout({
         width: estimatedItemWidth,
         height: estimatedItemHeight
-      }, itemHashList, itemSizeDict, itemCount, spacing, {
-        width: width,
-        height: height
-      }, direction);
+      }, nextItemHashList, nextItemSizeDict, itemCount, spacing, direction);
 
+      if (nextItemHashList !== itemHashList) {
+        nextState.itemHashList = nextItemHashList;
+      }
+
+      if (nextItemSizeDict !== itemSizeDict) {
+        nextState.itemSizeDict = nextItemSizeDict;
+      }
+
       if (state.size.width !== nextState.size.width || state.size.height !== nextState.size.height) {
-        onResize(nextState.size);
+        onResize((0, _extends3.default)({}, nextState.size));
       }
@@ -98,3 +137,8 @@
   _proto.render = function render() {
+    var _this2 = this;
+
     var _this$props2 = this.props,
+        direction = _this$props2.direction,
+        width = _this$props2.width,
+        height = _this$props2.height,
         itemCount = _this$props2.itemCount,
@@ -104,3 +148,5 @@ visibleRect = _this$props2.visibleRect,
         children = _this$props2.children;
-    var layoutAttrs = this.state.layoutAttrs;
+    var _this$state = this.state,
+        itemSizeDict = _this$state.itemSizeDict,
+        layoutAttrs = _this$state.layoutAttrs;
 
@@ -111,11 +157,18 @@ if (typeof children === 'function') {
 
-    var list = [];
+    var items = [];
 
-    for (var itemIndex = 0; itemIndex < itemCount; itemIndex++) {
+    var _loop = function _loop(itemIndex) {
       var attrs = layoutAttrs[itemIndex];
 
       if (attrs && needsRender(attrs, visibleRect)) {
-        var element = renderItem(attrs);
+        var element = renderItem((0, _extends3.default)({}, attrs, {
+          Item: _ItemContent.default
+        }));
+        var Item = element.type;
+        var _element$props = element.props,
+            onResize = _element$props.onResize,
+            style = _element$props.style,
+            props = (0, _objectWithoutPropertiesLoose2.default)(_element$props, ["onResize", "style"]);
         var key = element.key || attrs.itemIndex;
-        var style = (0, _extends2.default)({
+        var itemStyle = (0, _extends3.default)({
           position: 'absolute',
@@ -126,12 +179,41 @@ left: attrs.x,
           height: attrs.height
-        }, element.props.style);
-        element = _react.default.cloneElement(element, {
-          key: key,
-          style: style
-        });
-        list.push(element);
+        }, style);
+
+        if (Item === _ItemContent.default) {
+          props.onResize = function (size, hash) {
+            _this2._calculateLayout(itemIndex, hash, size);
+
+            onResize(size);
+          };
+
+          props.getSizeByHash = function (hash) {
+            return itemSizeDict[hash];
+          };
+
+          if (direction === 'horizontal') {
+            props.height = height;
+          } else {
+            props.width = width;
+          }
+
+          element = _react.default.createElement("div", {
+            key: key,
+            style: itemStyle
+          }, _react.default.createElement(Item, props));
+        } else {
+          element = _react.default.createElement(Item, (0, _extends3.default)({}, props, {
+            key: key,
+            style: itemStyle
+          }));
+        }
+
+        items.push(element);
       }
+    };
+
+    for (var itemIndex = 0; itemIndex < itemCount; itemIndex++) {
+      _loop(itemIndex);
     }
 
-    return _react.default.createElement(_react.default.Fragment, null, list);
+    return _react.default.createElement(_react.default.Fragment, null, items);
   };
@@ -165,5 +247,5 @@
   if (name) {
-    var _ref = name === 'y' ? ['y', 'height'] : ['x', 'width'],
-        x = _ref[0],
-        width = _ref[1];
+    var _ref2 = name === 'y' ? ['y', 'height'] : ['x', 'width'],
+        x = _ref2[0],
+        width = _ref2[1];
 
@@ -177,2 +259,36 @@ var dx = rect[x] - vRect[x];
 
-function calculateLayout(itemSize, itemHashList, itemSizeDict, itemCount, spacing, size, direction) {}
+function calculateLayout(estimatedItemSize, itemHashList, itemSizeDict, itemCount, spacing, direction) {
+  var _size;
+
+  var _ref3 = direction === 'horizontal' ? ['y', 'x', 'height', 'width'] : ['x', 'y', 'width', 'height'],
+      x = _ref3[0],
+      y = _ref3[1],
+      width = _ref3[2],
+      height = _ref3[3];
+
+  var sizeWidth = 0;
+  var sizeHeight = 0;
+  var layoutAttrs = [];
+
+  for (var itemIndex = 0; itemIndex < itemCount; itemIndex++) {
+    var _layoutAttrs$push;
+
+    if (itemIndex > 0) {
+      sizeHeight += spacing;
+    }
+
+    var itemHash = itemHashList[itemIndex];
+    var itemSize = itemSizeDict[itemHash] || estimatedItemSize;
+    layoutAttrs.push((_layoutAttrs$push = {}, _layoutAttrs$push[x] = 0, _layoutAttrs$push[y] = sizeHeight, _layoutAttrs$push[width] = itemSize[width], _layoutAttrs$push[height] = itemSize[height], _layoutAttrs$push.itemIndex = itemIndex, _layoutAttrs$push));
+    sizeHeight += itemSize[height];
+
+    if (sizeWidth < itemSize[width]) {
+      sizeWidth = itemSize[width];
+    }
+  }
+
+  return {
+    size: (_size = {}, _size[width] = sizeWidth, _size[height] = sizeHeight, _size),
+    layoutAttrs: layoutAttrs
+  };
+}

package.json

 {
   "name": "react-pannable",
-  "version": "0.3.5",
+  "version": "0.4.0",
   "description": "",
@@ -5,0 +5,0 @@ "keywords": [

README.md

@@ -103,3 +103,3 @@ # react-pannable
 
-`GeneralContent` automatically adjusts the width and height of content.
+`GeneralContent` automatically adjusts the size of content.
 
@@ -120,3 +120,3 @@ ```js
 
-`GridContent` provides grid layout of content.
+`GridContent` displays data in multiple rows and columns with the same size.
 
@@ -157,6 +157,62 @@ ```js
 
-Returns the area of cell at the specified indexes.
+Returns the area of item at the specified indexes.
 
+### ListContent
+
+`ListContent` displays data in a single line of customizable items.
+
+```js
+type Size = { width: number, height: number };
+type Rect = { x: number, y: number, width: number, height: number };
+type LayoutAttrs = {
+  itemIndex: number,
+  x: number,
+  y: number,
+  width: number,
+  height: number,
+  Item: ItemContent,
+};
+```
+
+#### Prop Types
+
+| Property            |          Type           |            DefaultValue             | Description                                                                                   |
+| :------------------ | :---------------------: | :---------------------------------: | :-------------------------------------------------------------------------------------------- |
+| direction           | 'vertical','horizontal' |             'vertical'              | The direction of the list.                                                                    |
+| width               |         number          |                 -1                  | The width of the content. If you set this property to `-1`, it shrinks the content's width.   |
+| height              |         number          |                 -1                  | The height of the content. If you set this property to `-1`, it shrinks the content's height. |
+| spacing             |         number          |                  0                  | The minimum spacing to use between items in the list.                                         |
+| itemCount           |         number          |                  0                  | The number of items.                                                                          |
+| estimatedItemWidth  |         number          |                  0                  | The estimated width of the item.                                                              |
+| estimatedItemHeight |         number          |                  0                  | The estimated height of the item.                                                             |
+| renderItem          |        function         |             () => null              | The renderer of the item.:`(attrs: LayoutAttrs) => element`                                   |
+| visibleRect         |          Rect           | { x: 0, y: 0, width: 0, height: 0 } | The area of the visible content.                                                              |
+| onResize            |        function         |              () => {}               | Callback invoked when the content resize.:`(size: Size) => void`                              |
+
+#### Public Methods
+
+##### getItemRect({ itemIndex: number })
+
+Returns the area of item at the specified index.
+
+### ItemContent
+
+`ItemContent` adjusts the size of content by hash property.
+
+```js
+type Size = { width: number, height: number };
+```
+
+#### Prop Types
+
+| Property      |   Type   | DefaultValue | Description                                                                                   |
+| :------------ | :------: | :----------: | :-------------------------------------------------------------------------------------------- |
+| width         |  number  |      -1      | The width of the content. If you set this property to `-1`, it shrinks the content's width.   |
+| height        |  number  |      -1      | The height of the content. If you set this property to `-1`, it shrinks the content's height. |
+| hash          |  string  |    'Item'    | The hash of the content. if this property changes, the content size recalculates.             |
+| getSizeByHash | function |  () => null  | The content size getter by hash.:`(hash: string) => Size`                                     |
+| onResize      | function |   () => {}   | Callback invoked when the content resize.:`(size: Size, hash: string) => void`                |
+
 ## License
 
 [MIT License](./LICENSE)

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Improved metrics

Total package byte prevSize

281830

increased by12.56%

Number of package files

30

increased by7.14%

Lines of code

6403

increased by11.43%

Number of lines in readme file

216

increased by35%

No dependency changes