vega-scenegraph - npm Package Compare versions

Comparing version 2.4.2 to 2.5.0

build/vega-scenegraph.min.js

@@ -1,1 +0,1 @@
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package.json

 {
   "name": "vega-scenegraph",
-  "version": "2.4.2",
+  "version": "2.5.0",
   "description": "Vega scenegraph and renderers.",
@@ -35,13 +35,13 @@ "license": "BSD-3-Clause",
   "dependencies": {
-    "d3-path": "1",
-    "d3-shape": "1",
-    "vega-canvas": "1",
-    "vega-loader": "2",
-    "vega-util": "^1.7"
+    "d3-path": "^1.0.5",
+    "d3-shape": "^1.2.0",
+    "vega-canvas": "^1.0.1",
+    "vega-loader": "^2.1.0",
+    "vega-util": "^1.7.0"
   },
   "devDependencies": {
-    "canvas": "^1.6",
+    "canvas": "^1.6.10",
     "eslint": "4",
     "jsdom": "11",
-    "rollup": "0.43",
+    "rollup": "0.58.2",
     "tape": "4",
@@ -48,0 +48,0 @@ "tv4": "1",

src/CanvasHandler.js

 import Handler from './Handler';
 import Marks from './marks/index';
+import {Events, HrefEvent, TooltipShowEvent, TooltipHideEvent} from './util/events';
 import point from './util/point';
@@ -35,2 +36,3 @@ import {domFind} from './util/dom';
 
+// return the backing canvas instance
 prototype.canvas = function() {
@@ -46,22 +48,3 @@ return this._canvas;
 // supported events
-prototype.events = [
-  'keydown',
-  'keypress',
-  'keyup',
-  'dragenter',
-  'dragleave',
-  'dragover',
-  'mousedown',
-  'mouseup',
-  'mousemove',
-  'mouseout',
-  'mouseover',
-  'click',
-  'dblclick',
-  'wheel',
-  'mousewheel',
-  'touchstart',
-  'touchmove',
-  'touchend'
-];
+prototype.events = Events;
 
@@ -149,6 +132,6 @@ // to keep old versions of firefox happy
   // handle hyperlinks and tooltips first
-  if (type === 'click' && a && a.href) {
+  if (type === HrefEvent && a && a.href) {
     this.handleHref(evt, a, a.href);
-  } else if ((type === 'mouseover' || type === 'mouseout')) {
-    this.handleTooltip(evt, a, type === 'mouseover');
+  } else if (type === TooltipShowEvent || type === TooltipHideEvent) {
+    this.handleTooltip(evt, a, type !== TooltipHideEvent);
   }
@@ -155,0 +138,0 @@

src/Handler.js

 import {domCreate} from './util/dom';
+import resolveItem from './util/resolveItem';
 import {loader} from 'vega-loader';
 
+/**
+ * Create a new Handler instance.
+ * @param {object} [customLoader] - Optional loader instance for
+ *   href URL sanitization. If not specified, a standard loader
+ *   instance will be generated.
+ * @param {function} [customTooltip] - Optional tooltip handler
+ *   function for custom tooltip display.
+ * @constructor
+ */
 export default function Handler(customLoader, customTooltip) {
@@ -11,2 +21,4 @@ this._active = null;
 
+// The default tooltip display handler.
+// Sets the HTML title attribute on the visualization container.
 function defaultTooltip(handler, event, item, value) {
@@ -18,2 +30,11 @@ handler.element().setAttribute('title', value || '');
 
+/**
+ * Initialize a new Handler instance.
+ * @param {DOMElement} el - The containing DOM element for the display.
+ * @param {Array<number>} origin - The origin of the display, in pixels.
+ *   The coordinate system will be translated to this point.
+ * @param {object} [obj] - Optional context object that should serve as
+ *   the "this" context for event callbacks.
+ * @return {Handler} - This handler instance.
+ */
 prototype.initialize = function(el, origin, obj) {
@@ -25,2 +46,6 @@ this._el = el;
 
+/**
+ * Returns the parent container element for a visualization.
+ * @return {DOMElement} - The containing DOM element.
+ */
 prototype.element = function() {
@@ -30,7 +55,26 @@ return this._el;
 
+/**
+ * Returns the scene element (e.g., canvas or SVG) of the visualization
+ * Subclasses must override if the first child is not the scene element.
+ * @return {DOMElement} - The scene (e.g., canvas or SVG) element.
+ */
+prototype.canvas = function() {
+  return this._el && this._el.firstChild;
+};
+
+/**
+ * Get / set the origin coordinates of the visualization.
+ */
 prototype.origin = function(origin) {
-  this._origin = origin || [0, 0];
-  return this;
+  if (arguments.length) {
+    this._origin = origin || [0, 0];
+    return this;
+  } else {
+    return this._origin.slice();
+  }
 };
 
+/**
+ * Get / set the scenegraph root.
+ */
 prototype.scene = function(scene) {
@@ -42,12 +86,19 @@ if (!arguments.length) return this._scene;
 
-// add an event handler
-// subclasses should override
+/**
+ * Add an event handler. Subclasses should override this method.
+ */
 prototype.on = function(/*type, handler*/) {};
 
-// remove an event handler
-// subclasses should override
+/**
+ * Remove an event handler. Subclasses should override this method.
+ */
 prototype.off = function(/*type, handler*/) {};
 
-// utility method for finding array index of registered handler
-// returns -1 if handler is not registered
+/**
+ * Utility method for finding the array index of an event handler.
+ * @param {Array} h - An array of registered event handlers.
+ * @param {string} type - The event type.
+ * @param {function} handler - The event handler instance to find.
+ * @return {number} - The handler's array index or -1 if not registered.
+ */
 prototype._handlerIndex = function(h, type, handler) {
@@ -62,3 +113,6 @@ for (var i = h ? h.length : 0; --i>=0;) {
 
-// return an array with all registered event handlers
+/**
+ * Returns an array with all registered event handlers.
+ * @return {Array} - A new array containing all registered event handlers.
+ */
 prototype.handlers = function() {
@@ -70,2 +124,8 @@ var h = this._handlers, a = [], k;
 
+/**
+ * Parses an event name string to return the specific event type.
+ * For example, given "click.foo" returns "click"
+ * @param {string} name - The input event type string.
+ * @return {string} - A string with the event type only.
+ */
 prototype.eventName = function(name) {
@@ -76,2 +136,8 @@ var i = name.indexOf('.');
 
+/**
+ * Handle hyperlink navigation in response to an item.href value.
+ * @param {Event} event - The event triggering hyperlink navigation.
+ * @param {Item} item - The scenegraph item.
+ * @param {string} href - The URL to navigate to.
+ */
 prototype.handleHref = function(event, item, href) {
@@ -89,7 +155,53 @@ this._loader
 
+/**
+ * Handle tooltip display in response to an item.tooltip value.
+ * @param {Event} event - The event triggering tooltip display.
+ * @param {Item} item - The scenegraph item.
+ * @param {boolean} show - A boolean flag indicating whether
+ *   to show or hide a tooltip for the given item.
+ */
 prototype.handleTooltip = function(event, item, show) {
   if (item && item.tooltip != null) {
-    this._tooltip.call(this._obj, this, event, item,
-      show ? item.tooltip : null);
+    item = resolveItem(item, event, this.canvas(), this._origin);
+    var value = (show && item && item.tooltip) || null;
+    this._tooltip.call(this._obj, this, event, item, value);
   }
 };
+
+/**
+ * Returns the size of a scenegraph item and its position relative
+ * to the viewport.
+ * @param {Item} item - The scenegraph item.
+ * @return {object} - A bounding box object (compatible with the
+ *   DOMRect type) consisting of x, y, width, heigh, top, left,
+ *   right, and bottom properties.
+ */
+prototype.getItemBoundingClientRect = function(item) {
+  if (!(el = this.canvas())) return;
+
+  var el, rect = el.getBoundingClientRect(),
+      origin = this._origin,
+      itemBounds = item.bounds,
+      x = itemBounds.x1 + origin[0] + rect.left,
+      y = itemBounds.y1 + origin[1] + rect.top,
+      w = itemBounds.width(),
+      h = itemBounds.height();
+
+  // translate coordinate for each parent group
+  while (item.mark && (item = item.mark.group)) {
+    x += item.x || 0;
+    y += item.y || 0;
+  }
+
+  // return DOMRect-compatible bounding box
+  return {
+    x:      x,
+    y:      y,
+    width:  w,
+    height: h,
+    left:   x,
+    top:    y,
+    right:  x + w,
+    bottom: y + h
+  };
+};

src/marks/area.js

 import {area} from '../path/shapes';
+import {pickArea} from '../util/pickPath';
 import markMultiItemPath from './markMultiItemPath';
 
-export default markMultiItemPath('area', area);
+export default markMultiItemPath('area', area, pickArea);

src/marks/line.js

 import {line} from '../path/shapes';
+import {pickLine} from '../util/pickPath';
 import markMultiItemPath from './markMultiItemPath';
 
-export default markMultiItemPath('line', line);
+export default markMultiItemPath('line', line, pickLine);

src/marks/markMultiItemPath.js

@@ -6,3 +6,3 @@ import boundStroke from '../bound/boundStroke';
 
-export default function(type, shape) {
+export default function(type, shape, tip) {
 
@@ -51,3 +51,4 @@ function attr(emit, item) {
     draw:   drawOne(draw),
-    pick:   pick
+    pick:   pick,
+    tip:    tip
   };
@@ -54,0 +55,0 @@

src/marks/trail.js

 import {trail} from '../path/shapes';
+import {pickTrail} from '../util/pickPath';
 import markMultiItemPath from './markMultiItemPath';
 
-export default markMultiItemPath('trail', trail);
+export default markMultiItemPath('trail', trail, pickTrail);

src/Renderer.js

@@ -27,3 +27,3 @@ import ResourceLoader from './ResourceLoader';
  *   the width and height to determine the final pixel size.
- * @return {Renderer} - This renderer instance;
+ * @return {Renderer} - This renderer instance.
  */
@@ -48,3 +48,3 @@ prototype.initialize = function(el, width, height, origin, scaleFactor) {
  */
-prototype.scene = function() {
+prototype.canvas = function() {
   return this._el && this._el.firstChild;
@@ -51,0 +51,0 @@ };

src/SVGHandler.js

 import Handler from './Handler';
 import {domFind} from './util/dom';
+import {HrefEvent, TooltipShowEvent, TooltipHideEvent} from './util/events';
 import {inherits} from 'vega-util';
@@ -12,3 +13,3 @@
   h._tooltipHandler = listener(h, function(evt, item) {
-    h.handleTooltip(evt, item, evt.type === 'mouseover');
+    h.handleTooltip(evt, item, evt.type !== TooltipHideEvent);
   });
@@ -22,11 +23,11 @@ }
   if (svg) {
-    svg.removeEventListener('click', this._hrefHandler);
-    svg.removeEventListener('mouseover', this._tooltipHandler);
-    svg.removeEventListener('mouseout', this._tooltipHandler);
+    svg.removeEventListener(HrefEvent, this._hrefHandler);
+    svg.removeEventListener(TooltipShowEvent, this._tooltipHandler);
+    svg.removeEventListener(TooltipHideEvent, this._tooltipHandler);
   }
   this._svg = svg = el && domFind(el, 'svg');
   if (svg) {
-    svg.addEventListener('click', this._hrefHandler);
-    svg.addEventListener('mouseover', this._tooltipHandler);
-    svg.addEventListener('mouseout', this._tooltipHandler);
+    svg.addEventListener(HrefEvent, this._hrefHandler);
+    svg.addEventListener(TooltipShowEvent, this._tooltipHandler);
+    svg.addEventListener(TooltipHideEvent, this._tooltipHandler);
   }
@@ -36,3 +37,3 @@ return Handler.prototype.initialize.call(this, el, origin, obj);
 
-prototype.svg = function() {
+prototype.canvas = function() {
   return this._svg;
@@ -39,0 +40,0 @@ };

src/SVGRenderer.js

@@ -70,2 +70,6 @@ import Renderer from './Renderer';
 
+prototype.canvas = function() {
+  return this._svg;
+};
+
 prototype.svg = function() {
@@ -72,0 +76,0 @@ if (!this._svg) return null;

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Improved metrics

Total package byte prevSize

328383

increased by6.17%

Number of package files

76

increased by4.11%

Lines of code

8844

increased by4.05%

Dependency changes

• Updatedd3-path@^1.0.5

• Updatedd3-shape@^1.2.0

• Updatedvega-canvas@^1.0.1

• Updatedvega-loader@^2.1.0

• Updatedvega-util@^1.7.0