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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import * as d3 from "d3";
import { layoutNodeGraph } from "../src/graph-layout";
import { GNode, nodeToStr } from "../src/node";
import { NODE_INPUT_WIDTH } from "../src/node";
import { DEFAULT_NODE_BUBBLE_RADIUS } from "../src/node";
import { Edge, edgeToStr } from "../src/edge";
import { PhaseView } from "../src/view";
import { MySelection } from "../src/selection";
import { partial } from "../src/util";
import { NodeSelectionHandler, ClearableHandler } from "./selection-handler";
import { Graph } from "./graph";
import { SelectionBroker } from "./selection-broker";
function nodeToStringKey(n: GNode) {
return "" + n.id;
}
interface GraphState {
showTypes: boolean;
selection: MySelection;
mouseDownNode: any;
justDragged: boolean;
justScaleTransGraph: boolean;
hideDead: boolean;
}
export class GraphView extends PhaseView {
divElement: d3.Selection<any, any, any, any>;
svg: d3.Selection<any, any, any, any>;
showPhaseByName: (p: string, s: Set<any>) => void;
state: GraphState;
selectionHandler: NodeSelectionHandler & ClearableHandler;
graphElement: d3.Selection<any, any, any, any>;
visibleNodes: d3.Selection<any, GNode, any, any>;
visibleEdges: d3.Selection<any, Edge, any, any>;
drag: d3.DragBehavior<any, GNode, GNode>;
panZoom: d3.ZoomBehavior<SVGElement, any>;
visibleBubbles: d3.Selection<any, any, any, any>;
transitionTimout: number;
graph: Graph;
broker: SelectionBroker;
phaseName: string;
toolbox: HTMLElement;
createViewElement() {
const pane = document.createElement('div');
pane.setAttribute('id', "graph");
return pane;
}
constructor(idOrContainer: string | HTMLElement, broker: SelectionBroker,
showPhaseByName: (s: string) => void, toolbox: HTMLElement) {
super(idOrContainer);
const view = this;
this.broker = broker;
this.showPhaseByName = showPhaseByName;
this.divElement = d3.select(this.divNode);
this.phaseName = "";
this.toolbox = toolbox;
const svg = this.divElement.append("svg")
.attr('version', '2.0')
.attr("width", "100%")
.attr("height", "100%");
svg.on("click", function (d) {
view.selectionHandler.clear();
});
// Listen for key events. Note that the focus handler seems
// to be important even if it does nothing.
svg
.attr("focusable", false)
.on("focus", e => { })
.on("keydown", e => { view.svgKeyDown(); });
view.svg = svg;
this.state = {
selection: null,
mouseDownNode: null,
justDragged: false,
justScaleTransGraph: false,
showTypes: false,
hideDead: false
};
this.selectionHandler = {
clear: function () {
view.state.selection.clear();
broker.broadcastClear(this);
view.updateGraphVisibility();
},
select: function (nodes: Array<GNode>, selected: boolean) {
const locations = [];
for (const node of nodes) {
if (node.nodeLabel.sourcePosition) {
locations.push(node.nodeLabel.sourcePosition);
}
if (node.nodeLabel.origin && node.nodeLabel.origin.bytecodePosition) {
locations.push({ bytecodePosition: node.nodeLabel.origin.bytecodePosition });
}
}
view.state.selection.select(nodes, selected);
broker.broadcastSourcePositionSelect(this, locations, selected);
view.updateGraphVisibility();
},
brokeredNodeSelect: function (locations, selected: boolean) {
if (!view.graph) return;
const selection = view.graph.nodes(n => {
return locations.has(nodeToStringKey(n))
&& (!view.state.hideDead || n.isLive());
});
view.state.selection.select(selection, selected);
// Update edge visibility based on selection.
for (const n of view.graph.nodes()) {
if (view.state.selection.isSelected(n)) {
n.visible = true;
n.inputs.forEach(e => {
e.visible = e.visible || view.state.selection.isSelected(e.source);
});
n.outputs.forEach(e => {
e.visible = e.visible || view.state.selection.isSelected(e.target);
});
}
}
view.updateGraphVisibility();
},
brokeredClear: function () {
view.state.selection.clear();
view.updateGraphVisibility();
}
};
view.state.selection = new MySelection(nodeToStringKey);
const defs = svg.append('svg:defs');
defs.append('svg:marker')
.attr('id', 'end-arrow')
.attr('viewBox', '0 -4 8 8')
.attr('refX', 2)
.attr('markerWidth', 2.5)
.attr('markerHeight', 2.5)
.attr('orient', 'auto')
.append('svg:path')
.attr('d', 'M0,-4L8,0L0,4');
this.graphElement = svg.append("g");
view.visibleEdges = this.graphElement.append("g");
view.visibleNodes = this.graphElement.append("g");
view.drag = d3.drag<any, GNode, GNode>()
.on("drag", function (d) {
d.x += d3.event.dx;
d.y += d3.event.dy;
view.updateGraphVisibility();
});
function zoomed() {
if (d3.event.shiftKey) return false;
view.graphElement.attr("transform", d3.event.transform);
return true;
}
const zoomSvg = d3.zoom<SVGElement, any>()
.scaleExtent([0.2, 40])
.on("zoom", zoomed)
.on("start", function () {
if (d3.event.shiftKey) return;
d3.select('body').style("cursor", "move");
})
.on("end", function () {
d3.select('body').style("cursor", "auto");
});
svg.call(zoomSvg).on("dblclick.zoom", null);
view.panZoom = zoomSvg;
}
getEdgeFrontier(nodes: Iterable<GNode>, inEdges: boolean,
edgeFilter: (e: Edge, i: number) => boolean) {
const frontier: Set<Edge> = new Set();
for (const n of nodes) {
const edges = inEdges ? n.inputs : n.outputs;
let edgeNumber = 0;
edges.forEach((edge: Edge) => {
if (edgeFilter == undefined || edgeFilter(edge, edgeNumber)) {
frontier.add(edge);
}
++edgeNumber;
});
}
return frontier;
}
getNodeFrontier(nodes: Iterable<GNode>, inEdges: boolean,
edgeFilter: (e: Edge, i: number) => boolean) {
const view = this;
const frontier: Set<GNode> = new Set();
let newState = true;
const edgeFrontier = view.getEdgeFrontier(nodes, inEdges, edgeFilter);
// Control key toggles edges rather than just turning them on
if (d3.event.ctrlKey) {
edgeFrontier.forEach(function (edge: Edge) {
if (edge.visible) {
newState = false;
}
});
}
edgeFrontier.forEach(function (edge: Edge) {
edge.visible = newState;
if (newState) {
const node = inEdges ? edge.source : edge.target;
node.visible = true;
frontier.add(node);
}
});
view.updateGraphVisibility();
if (newState) {
return frontier;
} else {
return undefined;
}
}
initializeContent(data, rememberedSelection) {
this.show();
function createImgInput(id: string, title: string, onClick): HTMLElement {
const input = document.createElement("input");
input.setAttribute("id", id);
input.setAttribute("type", "image");
input.setAttribute("title", title);
input.setAttribute("src", `img/${id}-icon.png`);
input.className = "button-input graph-toolbox-item";
input.addEventListener("click", onClick);
return input;
}
this.toolbox.appendChild(createImgInput("layout", "layout graph",
partial(this.layoutAction, this)));
this.toolbox.appendChild(createImgInput("show-all", "show all nodes",
partial(this.showAllAction, this)));
this.toolbox.appendChild(createImgInput("show-control", "show only control nodes",
partial(this.showControlAction, this)));
this.toolbox.appendChild(createImgInput("toggle-hide-dead", "toggle hide dead nodes",
partial(this.toggleHideDead, this)));
this.toolbox.appendChild(createImgInput("hide-unselected", "hide unselected",
partial(this.hideUnselectedAction, this)));
this.toolbox.appendChild(createImgInput("hide-selected", "hide selected",
partial(this.hideSelectedAction, this)));
this.toolbox.appendChild(createImgInput("zoom-selection", "zoom selection",
partial(this.zoomSelectionAction, this)));
this.toolbox.appendChild(createImgInput("toggle-types", "toggle types",
partial(this.toggleTypesAction, this)));
this.phaseName = data.name;
this.createGraph(data.data, rememberedSelection);
this.broker.addNodeHandler(this.selectionHandler);
if (rememberedSelection != null && rememberedSelection.size > 0) {
this.attachSelection(rememberedSelection);
this.connectVisibleSelectedNodes();
this.viewSelection();
} else {
this.viewWholeGraph();
}
}
deleteContent() {
for (const item of this.toolbox.querySelectorAll(".graph-toolbox-item")) {
item.parentElement.removeChild(item);
}
for (const n of this.graph.nodes()) {
n.visible = false;
}
this.graph.forEachEdge((e: Edge) => {
e.visible = false;
});
this.updateGraphVisibility();
}
public hide(): void {
super.hide();
this.deleteContent();
}
createGraph(data, rememberedSelection) {
this.graph = new Graph(data);
this.showControlAction(this);
if (rememberedSelection != undefined) {
for (const n of this.graph.nodes()) {
n.visible = n.visible || rememberedSelection.has(nodeToStringKey(n));
}
}
this.graph.forEachEdge(e => e.visible = e.source.visible && e.target.visible);
this.layoutGraph();
this.updateGraphVisibility();
}
connectVisibleSelectedNodes() {
const view = this;
for (const n of view.state.selection) {
n.inputs.forEach(function (edge: Edge) {
if (edge.source.visible && edge.target.visible) {
edge.visible = true;
}
});
n.outputs.forEach(function (edge: Edge) {
if (edge.source.visible && edge.target.visible) {
edge.visible = true;
}
});
}
}
updateInputAndOutputBubbles() {
const view = this;
const g = this.graph;
const s = this.visibleBubbles;
s.classed("filledBubbleStyle", function (c) {
const components = this.id.split(',');
if (components[0] == "ib") {
const edge = g.nodeMap[components[3]].inputs[components[2]];
return edge.isVisible();
} else {
return g.nodeMap[components[1]].areAnyOutputsVisible() == 2;
}
}).classed("halfFilledBubbleStyle", function (c) {
const components = this.id.split(',');
if (components[0] == "ib") {
return false;
} else {
return g.nodeMap[components[1]].areAnyOutputsVisible() == 1;
}
}).classed("bubbleStyle", function (c) {
const components = this.id.split(',');
if (components[0] == "ib") {
const edge = g.nodeMap[components[3]].inputs[components[2]];
return !edge.isVisible();
} else {
return g.nodeMap[components[1]].areAnyOutputsVisible() == 0;
}
});
s.each(function (c) {
const components = this.id.split(',');
if (components[0] == "ob") {
const from = g.nodeMap[components[1]];
const x = from.getOutputX();
const y = from.getNodeHeight(view.state.showTypes) + DEFAULT_NODE_BUBBLE_RADIUS;
const transform = "translate(" + x + "," + y + ")";
this.setAttribute('transform', transform);
}
});
}
attachSelection(s) {
if (!(s instanceof Set)) return;
this.selectionHandler.clear();
const selected = [...this.graph.nodes(n =>
s.has(this.state.selection.stringKey(n)) && (!this.state.hideDead || n.isLive()))];
this.selectionHandler.select(selected, true);
}
detachSelection() {
return this.state.selection.detachSelection();
}
selectAllNodes() {
if (!d3.event.shiftKey) {
this.state.selection.clear();
}
const allVisibleNodes = [...this.graph.nodes(n => n.visible)];
this.state.selection.select(allVisibleNodes, true);
this.updateGraphVisibility();
}
layoutAction(graph: GraphView) {
graph.layoutGraph();
graph.updateGraphVisibility();
graph.viewWholeGraph();
}
showAllAction(view: GraphView) {
for (const n of view.graph.nodes()) {
n.visible = !view.state.hideDead || n.isLive();
}
view.graph.forEachEdge((e: Edge) => {
e.visible = e.source.visible || e.target.visible;
});
view.updateGraphVisibility();
view.viewWholeGraph();
}
showControlAction(view: GraphView) {
for (const n of view.graph.nodes()) {
n.visible = n.cfg && (!view.state.hideDead || n.isLive());
}
view.graph.forEachEdge((e: Edge) => {
e.visible = e.type == 'control' && e.source.visible && e.target.visible;
});
view.updateGraphVisibility();
view.viewWholeGraph();
}
toggleHideDead(view: GraphView) {
view.state.hideDead = !view.state.hideDead;
if (view.state.hideDead) {
view.hideDead();
} else {
view.showDead();
}
const element = document.getElementById('toggle-hide-dead');
element.classList.toggle('button-input-toggled', view.state.hideDead);
}
hideDead() {
for (const n of this.graph.nodes()) {
if (!n.isLive()) {
n.visible = false;
this.state.selection.select([n], false);
}
}
this.updateGraphVisibility();
}
showDead() {
for (const n of this.graph.nodes()) {
if (!n.isLive()) {
n.visible = true;
}
}
this.updateGraphVisibility();
}
hideUnselectedAction(view: GraphView) {
for (const n of view.graph.nodes()) {
if (!view.state.selection.isSelected(n)) {
n.visible = false;
}
}
view.updateGraphVisibility();
}
hideSelectedAction(view: GraphView) {
for (const n of view.graph.nodes()) {
if (view.state.selection.isSelected(n)) {
n.visible = false;
}
}
view.selectionHandler.clear();
}
zoomSelectionAction(view: GraphView) {
view.viewSelection();
}
toggleTypesAction(view: GraphView) {
view.toggleTypes();
}
searchInputAction(searchBar: HTMLInputElement, e: KeyboardEvent, onlyVisible: boolean) {
if (e.keyCode == 13) {
this.selectionHandler.clear();
const query = searchBar.value;
window.sessionStorage.setItem("lastSearch", query);
if (query.length == 0) return;
const reg = new RegExp(query);
const filterFunction = (n: GNode) => {
return (reg.exec(n.getDisplayLabel()) != null ||
(this.state.showTypes && reg.exec(n.getDisplayType())) ||
(reg.exec(n.getTitle())) ||
reg.exec(n.nodeLabel.opcode) != null);
};
const selection = [...this.graph.nodes(n => {
if ((e.ctrlKey || n.visible || !onlyVisible) && filterFunction(n)) {
if (e.ctrlKey || !onlyVisible) n.visible = true;
return true;
}
return false;
})];
this.selectionHandler.select(selection, true);
this.connectVisibleSelectedNodes();
this.updateGraphVisibility();
searchBar.blur();
this.viewSelection();
}
e.stopPropagation();
}
svgKeyDown() {
const view = this;
const state = this.state;
const showSelectionFrontierNodes = (inEdges: boolean, filter: (e: Edge, i: number) => boolean, doSelect: boolean) => {
const frontier = view.getNodeFrontier(state.selection, inEdges, filter);
if (frontier != undefined && frontier.size) {
if (doSelect) {
if (!d3.event.shiftKey) {
state.selection.clear();
}
state.selection.select([...frontier], true);
}
view.updateGraphVisibility();
}
};
let eventHandled = true; // unless the below switch defaults
switch (d3.event.keyCode) {
case 49:
case 50:
case 51:
case 52:
case 53:
case 54:
case 55:
case 56:
case 57:
// '1'-'9'
showSelectionFrontierNodes(true,
(edge: Edge, index: number) => index == (d3.event.keyCode - 49),
!d3.event.ctrlKey);
break;
case 97:
case 98:
case 99:
case 100:
case 101:
case 102:
case 103:
case 104:
case 105:
// 'numpad 1'-'numpad 9'
showSelectionFrontierNodes(true,
(edge, index) => index == (d3.event.keyCode - 97),
!d3.event.ctrlKey);
break;
case 67:
// 'c'
showSelectionFrontierNodes(d3.event.altKey,
(edge, index) => edge.type == 'control',
true);
break;
case 69:
// 'e'
showSelectionFrontierNodes(d3.event.altKey,
(edge, index) => edge.type == 'effect',
true);
break;
case 79:
// 'o'
showSelectionFrontierNodes(false, undefined, false);
break;
case 73:
// 'i'
if (!d3.event.ctrlKey && !d3.event.shiftKey) {
showSelectionFrontierNodes(true, undefined, false);
} else {
eventHandled = false;
}
break;
case 65:
// 'a'
view.selectAllNodes();
break;
case 38:
// UP
case 40: {
// DOWN
showSelectionFrontierNodes(d3.event.keyCode == 38, undefined, true);
break;
}
case 82:
// 'r'
if (!d3.event.ctrlKey && !d3.event.shiftKey) {
this.layoutAction(this);
} else {
eventHandled = false;
}
break;
case 83:
// 's'
view.selectOrigins();
break;
default:
eventHandled = false;
break;
}
if (eventHandled) {
d3.event.preventDefault();
}
}
layoutGraph() {
console.time("layoutGraph");
layoutNodeGraph(this.graph, this.state.showTypes);
const extent = this.graph.redetermineGraphBoundingBox(this.state.showTypes);
this.panZoom.translateExtent(extent);
this.minScale();
console.timeEnd("layoutGraph");
}
selectOrigins() {
const state = this.state;
const origins = [];
let phase = this.phaseName;
const selection = new Set<any>();
for (const n of state.selection) {
const origin = n.nodeLabel.origin;
if (origin) {
phase = origin.phase;
const node = this.graph.nodeMap[origin.nodeId];
if (phase === this.phaseName && node) {
origins.push(node);
} else {
selection.add(`${origin.nodeId}`);
}
}
}
// Only go through phase reselection if we actually need
// to display another phase.
if (selection.size > 0 && phase !== this.phaseName) {
this.showPhaseByName(phase, selection);
} else if (origins.length > 0) {
this.selectionHandler.clear();
this.selectionHandler.select(origins, true);
}
}
// call to propagate changes to graph
updateGraphVisibility() {
const view = this;
const graph = this.graph;
const state = this.state;
if (!graph) return;
const filteredEdges = [...graph.filteredEdges(function (e) {
return e.source.visible && e.target.visible;
})];
const selEdges = view.visibleEdges.selectAll<SVGPathElement, Edge>("path").data(filteredEdges, edgeToStr);
// remove old links
selEdges.exit().remove();
// add new paths
const newEdges = selEdges.enter()
.append('path');
newEdges.style('marker-end', 'url(#end-arrow)')
.attr("id", function (edge) { return "e," + edge.stringID(); })
.on("click", function (edge) {
d3.event.stopPropagation();
if (!d3.event.shiftKey) {
view.selectionHandler.clear();
}
view.selectionHandler.select([edge.source, edge.target], true);
})
.attr("adjacentToHover", "false")
.classed('value', function (e) {
return e.type == 'value' || e.type == 'context';
}).classed('control', function (e) {
return e.type == 'control';
}).classed('effect', function (e) {
return e.type == 'effect';
}).classed('frame-state', function (e) {
return e.type == 'frame-state';
}).attr('stroke-dasharray', function (e) {
if (e.type == 'frame-state') return "10,10";
return (e.type == 'effect') ? "5,5" : "";
});
const newAndOldEdges = newEdges.merge(selEdges);
newAndOldEdges.classed('hidden', e => !e.isVisible());
// select existing nodes
const filteredNodes = [...graph.nodes(n => n.visible)];
const allNodes = view.visibleNodes.selectAll<SVGGElement, GNode>("g");
const selNodes = allNodes.data(filteredNodes, nodeToStr);
// remove old nodes
selNodes.exit().remove();
// add new nodes
const newGs = selNodes.enter()
.append("g");
newGs.classed("turbonode", function (n) { return true; })
.classed("control", function (n) { return n.isControl(); })
.classed("live", function (n) { return n.isLive(); })
.classed("dead", function (n) { return !n.isLive(); })
.classed("javascript", function (n) { return n.isJavaScript(); })
.classed("input", function (n) { return n.isInput(); })
.classed("simplified", function (n) { return n.isSimplified(); })
.classed("machine", function (n) { return n.isMachine(); })
.on('mouseenter', function (node) {
const visibleEdges = view.visibleEdges.selectAll<SVGPathElement, Edge>('path');
const adjInputEdges = visibleEdges.filter(e => e.target === node);
const adjOutputEdges = visibleEdges.filter(e => e.source === node);
adjInputEdges.attr('relToHover', "input");
adjOutputEdges.attr('relToHover', "output");
const adjInputNodes = adjInputEdges.data().map(e => e.source);
const visibleNodes = view.visibleNodes.selectAll<SVGGElement, GNode>("g");
visibleNodes.data<GNode>(adjInputNodes, nodeToStr).attr('relToHover', "input");
const adjOutputNodes = adjOutputEdges.data().map(e => e.target);
visibleNodes.data<GNode>(adjOutputNodes, nodeToStr).attr('relToHover', "output");
view.updateGraphVisibility();
})
.on('mouseleave', function (node) {
const visibleEdges = view.visibleEdges.selectAll<SVGPathElement, Edge>('path');
const adjEdges = visibleEdges.filter(e => e.target === node || e.source === node);
adjEdges.attr('relToHover', "none");
const adjNodes = adjEdges.data().map(e => e.target).concat(adjEdges.data().map(e => e.source));
const visibleNodes = view.visibleNodes.selectAll<SVGPathElement, GNode>("g");
visibleNodes.data(adjNodes, nodeToStr).attr('relToHover', "none");
view.updateGraphVisibility();
})
.on("click", d => {
if (!d3.event.shiftKey) view.selectionHandler.clear();
view.selectionHandler.select([d], undefined);
d3.event.stopPropagation();
})
.call(view.drag);
newGs.append("rect")
.attr("rx", 10)
.attr("ry", 10)
.attr('width', function (d) {
return d.getTotalNodeWidth();
})
.attr('height', function (d) {
return d.getNodeHeight(view.state.showTypes);
});
function appendInputAndOutputBubbles(g, d) {
for (let i = 0; i < d.inputs.length; ++i) {
const x = d.getInputX(i);
const y = -DEFAULT_NODE_BUBBLE_RADIUS;
g.append('circle')
.classed("filledBubbleStyle", function (c) {
return d.inputs[i].isVisible();
})
.classed("bubbleStyle", function (c) {
return !d.inputs[i].isVisible();
})
.attr("id", "ib," + d.inputs[i].stringID())
.attr("r", DEFAULT_NODE_BUBBLE_RADIUS)
.attr("transform", function (d) {
return "translate(" + x + "," + y + ")";
})
.on("click", function (this: SVGCircleElement, d) {
const components = this.id.split(',');
const node = graph.nodeMap[components[3]];
const edge = node.inputs[components[2]];
const visible = !edge.isVisible();
node.setInputVisibility(components[2], visible);
d3.event.stopPropagation();
view.updateGraphVisibility();
});
}
if (d.outputs.length != 0) {
const x = d.getOutputX();
const y = d.getNodeHeight(view.state.showTypes) + DEFAULT_NODE_BUBBLE_RADIUS;
g.append('circle')
.classed("filledBubbleStyle", function (c) {
return d.areAnyOutputsVisible() == 2;
})
.classed("halFilledBubbleStyle", function (c) {
return d.areAnyOutputsVisible() == 1;
})
.classed("bubbleStyle", function (c) {
return d.areAnyOutputsVisible() == 0;
})
.attr("id", "ob," + d.id)
.attr("r", DEFAULT_NODE_BUBBLE_RADIUS)
.attr("transform", function (d) {
return "translate(" + x + "," + y + ")";
})
.on("click", function (d) {
d.setOutputVisibility(d.areAnyOutputsVisible() == 0);
d3.event.stopPropagation();
view.updateGraphVisibility();
});
}
}
newGs.each(function (d) {
appendInputAndOutputBubbles(d3.select(this), d);
});
newGs.each(function (d) {
d3.select(this).append("text")
.classed("label", true)
.attr("text-anchor", "right")
.attr("dx", 5)
.attr("dy", 5)
.append('tspan')
.text(function (l) {
return d.getDisplayLabel();
})
.append("title")
.text(function (l) {
return d.getTitle();
});
if (d.nodeLabel.type != undefined) {
d3.select(this).append("text")
.classed("label", true)
.classed("type", true)
.attr("text-anchor", "right")
.attr("dx", 5)
.attr("dy", d.labelbbox.height + 5)
.append('tspan')
.text(function (l) {
return d.getDisplayType();
})
.append("title")
.text(function (l) {
return d.getType();
});
}
});
const newAndOldNodes = newGs.merge(selNodes);
newAndOldNodes.select<SVGTextElement>('.type').each(function (d) {
this.setAttribute('visibility', view.state.showTypes ? 'visible' : 'hidden');
});
newAndOldNodes
.classed("selected", function (n) {
if (state.selection.isSelected(n)) return true;
return false;
})
.attr("transform", function (d) { return "translate(" + d.x + "," + d.y + ")"; })
.select('rect')
.attr('height', function (d) { return d.getNodeHeight(view.state.showTypes); });
view.visibleBubbles = d3.selectAll('circle');
view.updateInputAndOutputBubbles();
graph.maxGraphX = graph.maxGraphNodeX;
newAndOldEdges.attr("d", function (edge) {
return edge.generatePath(graph, view.state.showTypes);
});
}
getSvgViewDimensions() {
return [this.container.clientWidth, this.container.clientHeight];
}
getSvgExtent(): [[number, number], [number, number]] {
return [[0, 0], [this.container.clientWidth, this.container.clientHeight]];
}
minScale() {
const dimensions = this.getSvgViewDimensions();
const minXScale = dimensions[0] / (2 * this.graph.width);
const minYScale = dimensions[1] / (2 * this.graph.height);
const minScale = Math.min(minXScale, minYScale);
this.panZoom.scaleExtent([minScale, 40]);
return minScale;
}
onresize() {
const trans = d3.zoomTransform(this.svg.node());
const ctrans = this.panZoom.constrain()(trans, this.getSvgExtent(), this.panZoom.translateExtent());
this.panZoom.transform(this.svg, ctrans);
}
toggleTypes() {
const view = this;
view.state.showTypes = !view.state.showTypes;
const element = document.getElementById('toggle-types');
element.classList.toggle('button-input-toggled', view.state.showTypes);
view.updateGraphVisibility();
}
viewSelection() {
const view = this;
let minX;
let maxX;
let minY;
let maxY;
let hasSelection = false;
view.visibleNodes.selectAll<SVGGElement, GNode>("g").each(function (n) {
if (view.state.selection.isSelected(n)) {
hasSelection = true;
minX = minX ? Math.min(minX, n.x) : n.x;
maxX = maxX ? Math.max(maxX, n.x + n.getTotalNodeWidth()) :
n.x + n.getTotalNodeWidth();
minY = minY ? Math.min(minY, n.y) : n.y;
maxY = maxY ? Math.max(maxY, n.y + n.getNodeHeight(view.state.showTypes)) :
n.y + n.getNodeHeight(view.state.showTypes);
}
});
if (hasSelection) {
view.viewGraphRegion(minX - NODE_INPUT_WIDTH, minY - 60,
maxX + NODE_INPUT_WIDTH, maxY + 60);
}
}
viewGraphRegion(minX, minY, maxX, maxY) {
const [width, height] = this.getSvgViewDimensions();
const dx = maxX - minX;
const dy = maxY - minY;
const x = (minX + maxX) / 2;
const y = (minY + maxY) / 2;
const scale = Math.min(width / (1.1 * dx), height / (1.1 * dy));
this.svg
.transition().duration(300).call(this.panZoom.translateTo, x, y)
.transition().duration(300).call(this.panZoom.scaleTo, scale)
.transition().duration(300).call(this.panZoom.translateTo, x, y);
}
viewWholeGraph() {
this.panZoom.scaleTo(this.svg, 0);
this.panZoom.translateTo(this.svg,
this.graph.minGraphX + this.graph.width / 2,
this.graph.minGraphY + this.graph.height / 2);
}
}