[the-board] [ui] Factor out code to set selected things from selection box

[Lucas Rocha <lucasr src gnome org>]

commit ae1b8643b0334aea233017a5f31e5bd8679aad58
Author: Lucas Rocha <lucasr gnome org>
Date:   Fri Jan 14 01:27:32 2011 +0000

    [ui] Factor out code to set selected things from selection box

 src/js/ui/page.js |   34 ++++++++++++++++++++++------------
 1 files changed, 22 insertions(+), 12 deletions(-)
---
diff --git a/src/js/ui/page.js b/src/js/ui/page.js
index 2b7d914..0e51c7b 100644
--- a/src/js/ui/page.js
+++ b/src/js/ui/page.js
@@ -379,16 +379,10 @@ Page.prototype = {
         return union;
     },
 
-    _updateSelectedThings : function() {
-        if (this._selectionBox.visible) {
-            let x1 = this._selectionBox.x - this._selectionBox.anchorX;
-            let y1 = this._selectionBox.y - this._selectionBox.anchorY;
-            let x2 = x1 + this._selectionBox.width;
-            let y2 = y1 + this._selectionBox.height;
+    _setSelectedThings : function(selectedThings) {
+        this._selectedThings = selectedThings;
 
-            this._selectedThings = this._getThingsInArea(x1, y1, x2, y2);
-        } else {
-            this._selectedThings = [];
+        if (this._selectedThings.length == 0) {
             delete this._dragArea;
         }
 
@@ -404,9 +398,25 @@ Page.prototype = {
         this._things.forEach(Lang.bind(this, updateSelection));
     },
 
+    _updateSelectedThingsFromBox : function() {
+        let selectedThings;
+
+        if (this._selectionBox.visible) {
+            let x1 = this._selectionBox.x - this._selectionBox.anchorX;
+            let y1 = this._selectionBox.y - this._selectionBox.anchorY;
+            let x2 = x1 + this._selectionBox.width;
+            let y2 = y1 + this._selectionBox.height;
+
+            selectedThings = this._getThingsInArea(x1, y1, x2, y2);
+        } else {
+            selectedThings = [];
+        }
+
+        this._setSelectedThings(selectedThings);
+    },
+
     _unselectAllThings : function() {
-        this._selectionBox.hide();
-        this._updateSelectedThings();
+        this._setSelectedThings([]);
     },
 
     _ensureDragArea : function(draggedThing) {
@@ -444,7 +454,7 @@ Page.prototype = {
         this._selectionBox.width = Math.abs(deltaX);
         this._selectionBox.height = Math.abs(deltaY);
 
-        this._updateSelectedThings();
+        this._updateSelectedThingsFromBox();
     },
 
     _onMainBoxDragBegin : function(action, actor, eventX, eventY, modifiers) {