event log: virtual scrolling

libmproxy/web/static/js/app.js

@@ -485,7 +485,7 @@ _.extend(FlowView.prototype, EventEmitter.prototype, {
 
         //Ugly workaround: Call .sortfun() for each flow once in order,
         //so that SortByInsertionOrder make sense.
-        for(var i = 0; i < flows.length; i++) {
+        for (var i = 0; i < flows.length; i++) {
             this.sortfun(flows[i]);
         }
 
@@ -705,35 +705,57 @@ var VirtualScrollMixin = {
             stop: 0
         }
     },
+    componentWillMount: function(){
+        if(!this.props.rowHeight){
+            console.warn("VirtualScrollMixin: No rowHeight specified", this);
+        }
+    },
     getPlaceholderTop: function () {
+        var Tag = this.props.placeholderTagName || "tr";
         var style = {
             height: this.state.start * this.props.rowHeight
         };
-        var spacer = React.createElement("tr", {key: "placeholder-top", style: style});
+        var spacer = React.createElement(Tag, {key: "placeholder-top", style: style});
 
         if (this.state.start % 2 === 1) {
             // fix even/odd rows
-            return [spacer, React.createElement("tr", {key: "placeholder-top-2"})];
+            return [spacer, React.createElement(Tag, {key: "placeholder-top-2"})];
         } else {
             return spacer;
         }
     },
     getPlaceholderBottom: function (total) {
+        var Tag = this.props.placeholderTagName || "tr";
         var style = {
             height: Math.max(0, total - this.state.stop) * this.props.rowHeight
         };
-        return React.createElement("tr", {key: "placeholder-bottom", style: style});
+        return React.createElement(Tag, {key: "placeholder-bottom", style: style});
+    },
+    componentDidMount: function () {
+        this.onScroll();
     },
     onScroll: function () {
         var viewport = this.getDOMNode();
         var top = viewport.scrollTop;
         var height = viewport.offsetHeight;
         var start = Math.floor(top / this.props.rowHeight);
-        var stop = start + Math.ceil(height / this.props.rowHeight);
+        var stop = start + Math.ceil(height / (this.props.rowHeightMin || this.props.rowHeight));
+
         this.setState({
             start: start,
             stop: stop
         });
+        console.log(start, stop);
+    },
+    renderRows: function(elems){
+        var rows = [];
+        var max = Math.min(elems.length, this.state.stop);
+
+        for (var i = this.state.start; i < max; i++) {
+            var elem = elems[i];
+            rows.push(this.renderRow(elem));
+        }
+        return rows;
     },
     scrollRowIntoView: function(index, head_height){
 
@@ -1066,9 +1088,6 @@ var FlowTable = React.createClass({displayName: 'FlowTable',
             nextProps.view.addListener("add update remove recalculate", this.onChange);
         }
     },
-    componentDidMount: function () {
-        this.onScroll2();
-    },
     getDefaultProps: function () {
         return {
             rowHeight: ROW_HEIGHT
@@ -1088,27 +1107,20 @@ var FlowTable = React.createClass({displayName: 'FlowTable',
             this.refs.body.getDOMNode().offsetTop
         );
     },
-    render: function () {
+    renderRow: function (flow) {
-        var space_top = 0, space_bottom = 0, fix_nth_row = null;
-        var rows = [];
-        if (this.props.view) {
-            var flows = this.props.view.flows;
-            var max = Math.min(flows.length, this.state.stop);
-
-            for (var i = this.state.start; i < max; i++) {
-                var flow = flows[i];
         var selected = (flow === this.props.selected);
-                rows.push(
+        return React.createElement(FlowRow, {key: flow.id, 
-                    React.createElement(FlowRow, {key: flow.id, 
             ref: flow.id, 
             flow: flow, 
             columns: this.state.columns, 
             selected: selected, 
             selectFlow: this.props.selectFlow}
-                    )
         );
-            }
+    },
-        }
+    render: function () {
+        var flows = this.props.view ? this.props.view.flows : [];
+
+        var rows = this.renderRows(flows);
 
         return (
             React.createElement("div", {className: "flow-table", onScroll: this.onScroll2}, 
@@ -1599,7 +1611,7 @@ var LogMessage = React.createClass({displayName: 'LogMessage',
 });
 
 var EventLogContents = React.createClass({displayName: 'EventLogContents',
-    mixins: [AutoScrollMixin],
+    mixins: [AutoScrollMixin, VirtualScrollMixin],
     getInitialState: function () {
         return {
             log: []
@@ -1614,18 +1626,37 @@ var EventLogContents = React.createClass({displayName: 'EventLogContents',
         this.log.close();
     },
     onEventLogChange: function () {
+        var log = this.log.getAll().filter(function (entry) {
+            return this.props.filter[entry.level];
+        }.bind(this));
         this.setState({
-            log: this.log.getAll()
+            log: log
         });
     },
-    render: function () {
+    componentWillReceiveProps: function () {
-        var messages = this.state.log.map(function (row) {
+        if (this.log) {
-            if (!this.props.filter[row.level]) {
+            this.onEventLogChange();
-                return null;
         }
-            return React.createElement(LogMessage, {key: row.id, entry: row});
+
-        }.bind(this));
+    },
-        return React.createElement("pre", null, messages);
+    getDefaultProps: function () {
+        return {
+            rowHeight: 45,
+            rowHeightMin: 15,
+            placeholderTagName: "div"
+        };
+    },
+    renderRow: function(elem){
+        return React.createElement(LogMessage, {key: elem.id, entry: elem});
+    },
+    render: function () {
+        var rows = this.renderRows(this.state.log);
+
+        return React.createElement("pre", {onScroll: this.onScroll}, 
+             this.getPlaceholderTop(), 
+            rows, 
+             this.getPlaceholderBottom(this.state.log.length) 
+        );
     }
 });
 

web/src/js/components/eventlog.jsx.js

@@ -24,7 +24,7 @@ var LogMessage = React.createClass({
 });
 
 var EventLogContents = React.createClass({
-    mixins: [AutoScrollMixin],
+    mixins: [AutoScrollMixin, VirtualScrollMixin],
     getInitialState: function () {
         return {
             log: []
@@ -39,18 +39,37 @@ var EventLogContents = React.createClass({
         this.log.close();
     },
     onEventLogChange: function () {
+        var log = this.log.getAll().filter(function (entry) {
+            return this.props.filter[entry.level];
+        }.bind(this));
         this.setState({
-            log: this.log.getAll()
+            log: log
         });
     },
-    render: function () {
+    componentWillReceiveProps: function () {
-        var messages = this.state.log.map(function (row) {
+        if (this.log) {
-            if (!this.props.filter[row.level]) {
+            this.onEventLogChange();
-                return null;
         }
-            return <LogMessage key={row.id} entry={row}/>;
+
-        }.bind(this));
+    },
-        return <pre>{messages}</pre>;
+    getDefaultProps: function () {
+        return {
+            rowHeight: 45,
+            rowHeightMin: 15,
+            placeholderTagName: "div"
+        };
+    },
+    renderRow: function(elem){
+        return <LogMessage key={elem.id} entry={elem}/>;
+    },
+    render: function () {
+        var rows = this.renderRows(this.state.log);
+
+        return <pre onScroll={this.onScroll}>
+            { this.getPlaceholderTop() }
+            {rows}
+            { this.getPlaceholderBottom(this.state.log.length) }
+        </pre>;
     }
 });
 

web/src/js/components/flowtable.jsx.js

@@ -58,9 +58,6 @@ var FlowTable = React.createClass({
             nextProps.view.addListener("add update remove recalculate", this.onChange);
         }
     },
-    componentDidMount: function () {
-        this.onScroll2();
-    },
     getDefaultProps: function () {
         return {
             rowHeight: ROW_HEIGHT
@@ -80,27 +77,20 @@ var FlowTable = React.createClass({
             this.refs.body.getDOMNode().offsetTop
         );
     },
-    render: function () {
+    renderRow: function (flow) {
-        var space_top = 0, space_bottom = 0, fix_nth_row = null;
-        var rows = [];
-        if (this.props.view) {
-            var flows = this.props.view.flows;
-            var max = Math.min(flows.length, this.state.stop);
-
-            for (var i = this.state.start; i < max; i++) {
-                var flow = flows[i];
         var selected = (flow === this.props.selected);
-                rows.push(
+        return <FlowRow key={flow.id}
-                    <FlowRow key={flow.id}
             ref={flow.id}
             flow={flow}
             columns={this.state.columns}
             selected={selected}
             selectFlow={this.props.selectFlow}
-                    />
+        />;
-                );
+    },
-            }
+    render: function () {
-        }
+        var flows = this.props.view ? this.props.view.flows : [];
+
+        var rows = this.renderRows(flows);
 
         return (
             <div className="flow-table" onScroll={this.onScroll2}>

web/src/js/components/virtualscroll.jsx.js

@@ -5,35 +5,57 @@ var VirtualScrollMixin = {
             stop: 0
         }
     },
+    componentWillMount: function(){
+        if(!this.props.rowHeight){
+            console.warn("VirtualScrollMixin: No rowHeight specified", this);
+        }
+    },
     getPlaceholderTop: function () {
+        var Tag = this.props.placeholderTagName || "tr";
         var style = {
             height: this.state.start * this.props.rowHeight
         };
-        var spacer = <tr key="placeholder-top" style={style}></tr>;
+        var spacer = <Tag key="placeholder-top" style={style}></Tag>;
 
         if (this.state.start % 2 === 1) {
             // fix even/odd rows
-            return [spacer, <tr key="placeholder-top-2"></tr>];
+            return [spacer, <Tag key="placeholder-top-2"></Tag>];
         } else {
             return spacer;
         }
     },
     getPlaceholderBottom: function (total) {
+        var Tag = this.props.placeholderTagName || "tr";
         var style = {
             height: Math.max(0, total - this.state.stop) * this.props.rowHeight
         };
-        return <tr key="placeholder-bottom" style={style}></tr>;
+        return <Tag key="placeholder-bottom" style={style}></Tag>;
+    },
+    componentDidMount: function () {
+        this.onScroll();
     },
     onScroll: function () {
         var viewport = this.getDOMNode();
         var top = viewport.scrollTop;
         var height = viewport.offsetHeight;
         var start = Math.floor(top / this.props.rowHeight);
-        var stop = start + Math.ceil(height / this.props.rowHeight);
+        var stop = start + Math.ceil(height / (this.props.rowHeightMin || this.props.rowHeight));
+
         this.setState({
             start: start,
             stop: stop
         });
+        console.log(start, stop);
+    },
+    renderRows: function(elems){
+        var rows = [];
+        var max = Math.min(elems.length, this.state.stop);
+
+        for (var i = this.state.start; i < max; i++) {
+            var elem = elems[i];
+            rows.push(this.renderRow(elem));
+        }
+        return rows;
     },
     scrollRowIntoView: function(index, head_height){
 

web/src/js/stores/flowstore.js

@@ -144,7 +144,7 @@ _.extend(FlowView.prototype, EventEmitter.prototype, {
 
         //Ugly workaround: Call .sortfun() for each flow once in order,
         //so that SortByInsertionOrder make sense.
-        for(var i = 0; i < flows.length; i++) {
+        for (var i = 0; i < flows.length; i++) {
             this.sortfun(flows[i]);
         }