Replace all mention of DOM in the documentation with scene graph.

src/item/ChangeFlag.js

@@ -16,7 +16,8 @@ var ChangeFlag = {
     APPEARANCE: 0x1,
     // A change in the item's children
     CHILDREN: 0x2,
-    // A change in the item's place in the DOM (removed, inserted, moved).
+    // A change of the item's place in the scene graph (removed, inserted,
+    // moved).
     INSERTION: 0x4,
     // Item geometry (path, bounds)
     GEOMETRY: 0x8,

src/item/Item.js

@@ -37,7 +37,7 @@ var Item = Base.extend(Emitter, /** @lends Item# */{
 
         /**
          * An object constant that can be passed to Item#initialize() to avoid
-         * insertion into the DOM.
+         * insertion into the scene graph.
          *
          * @private
          */
@@ -100,8 +100,8 @@ var Item = Base.extend(Emitter, /** @lends Item# */{
             matrix.translate(point);
         matrix._owner = this;
         this._style = new Style(project._currentStyle, this, project);
-        // If _project is already set, the item was already moved into the DOM
+        // If _project is already set, the item was already moved into the scene
-        // hierarchy. Used by Layer, where it's added to project.layers instead
+        // graph. Used by Layer, where it's added to project.layers instead
         if (!this._project) {
             // Do not insert into DOM if it's an internal path, if props.insert
             // is false, or if the props are setting a different parent anyway.
@@ -968,7 +968,7 @@ var Item = Base.extend(Emitter, /** @lends Item# */{
                         other._bounds = other._position = undefined;
                         // We need to recursively call _clearBoundsCache, as
                         // when the cache for the other item's children is not
-                        // valid anymore, that propagates up the DOM tree.
+                        // valid anymore, that propagates up the scene graph.
                         if (other._boundsCache)
                             Item._clearBoundsCache(other);
                     }
@@ -1411,8 +1411,8 @@ var Item = Base.extend(Emitter, /** @lends Item# */{
      * item.
      *
      * @param {Boolean} [insert=true] specifies whether the copy should be
-     *     inserted into the DOM. When set to `true`, it is inserted above the
+     *     inserted into the scene graph. When set to `true`, it is inserted
-     *     original
+     *     above the original
      * @return {Item} the newly cloned item
      *
      * @example {@paperscript}
@@ -2586,10 +2586,10 @@ var Item = Base.extend(Emitter, /** @lends Item# */{
     },
 
     /**
-     * Checks whether the item and all its parents are inserted into the DOM or
+     * Checks whether the item and all its parents are inserted into scene graph
-     * not.
+     * or not.
      *
-     * @return {Boolean} {@true if the item is inserted into the DOM}
+     * @return {Boolean} {@true if the item is inserted into the scene graph}
      */
     isInserted: function() {
         return this._parent ? this._parent.isInserted() : false;
@@ -3998,8 +3998,8 @@ var Item = Base.extend(Emitter, /** @lends Item# */{
 
     /**
      * Checks the _updateVersion of the item to see if it got drawn in the draw
-     * loop. If the version is out of sync, the item is either not in the DOM
+     * loop. If the version is out of sync, the item is either not in the scene
-     * anymore or is invisible.
+     * graph anymore or is invisible.
      */
     _isUpdated: function(updateVersion) {
         var parent = this._parent;

src/item/Shape.js

@@ -160,8 +160,8 @@ var Shape = Item.extend(/** @lends Shape# */{
      * inherits all settings from it, similar to {@link Item#clone()}.
      *
      * @param {Boolean} [insert=true] specifies whether the new path should be
-     *     inserted into the DOM. When set to `true`, it is inserted above the
+     *     inserted into the scene graph. When set to `true`, it is inserted
-     *     shape item
+     *     above the shape item
      * @return {Shape} the newly created path item with the same geometry as
      *     this shape item
      * @see Path#toShape(insert)

src/path/Path.js

@@ -1395,8 +1395,8 @@ var Path = PathItem.extend(/** @lends Path# */{
      * and inherits all settings from it, similar to {@link Item#clone()}.
      *
      * @param {Boolean} [insert=true] specifies whether the new shape should be
-     * inserted into the DOM. When set to `true`, it is inserted above the
+     * inserted into the scene graph. When set to `true`, it is inserted above
-     * path item
+     * the path item
      * @return {Shape} the newly created shape item with the same geometry as
      * this path item if it can be matched, `null` otherwise
      * @see Shape#toPath(insert)
@@ -1586,8 +1586,8 @@ var Path = PathItem.extend(/** @lends Path# */{
             // Handle joins / caps that are not round specificelly, by
             // hit-testing their polygon areas.
             if (join !== 'round' || cap !== 'round') {
-                // Create an 'internal' path without id and outside the DOM
+                // Create an 'internal' path without id and outside the scene
-                // to run the hit-test on it.
+                // graph to run the hit-test on it.
                 area = new Path({ internal: true, closed: true });
                 if (closed || segment._index > 0
                         && segment._index < numSegments - 1) {

src/view/CanvasView.js

@@ -183,7 +183,7 @@ new function() { // Item based mouse handling:
             }
         }
 
-        // Bubble up the DOM and find a parent that responds to this event.
+        // Bubble up the parents and call this event until we're told to stop.
         while (item) {
             if (call(item, type))
                 return true;