Tree.less #1

/* Tree 
 * 
 * Styling Tree mostly means styling the TreeRow (dijitTreeRow)
 * There are 4 basic states to style:
 * 
 * Tree Row:
 * 1. tree row (default styling): 
 * 		.dijitTreeRow - styles for each row of the tree
 *
 * 2. hovered tree row (mouse hover on a tree row)
 * 		.dijitTreeRowHover - styles when mouse over on one row
 * 
 * 3. active tree row (mouse down on a tree row)
 * 		.dijitTreeRowActive - styles when mouse down on one row
 * 
 * 4. selected tree row
 * 		dijitTreeRowSelected - style when the row has been selected
 * 
 * Tree Expando:
 * 	    dijitTreeExpando - the expando at the left of the text of each tree row
 * 
 * Drag and Drop on TreeNodes: (insert line on dijitTreeContent node so it'll aligned w/ target element)
 * 		.dijitTreeNode .dojoDndItemBefore/.dojoDndItemAfter - use border style simulate a separate line
 */

@import "variables";

.claro .dijitTreeNode {
    zoom: 1;	/* force layout on IE (TODO: may not be needed anymore) */
}
.claro .dijitTreeIsRoot {
    background-image: none;
}

/* Styling for basic tree node (unhovered, unselected)
 * Also use this styling when dropping between items on the tree (in other words, don't
 * use hover effect)
 */
.claro .dijitTreeRow,
.claro .dijitTreeNode .dojoDndItemBefore,
.claro .dijitTreeNode .dojoDndItemAfter {
	/* so insert line shows up on IE when dropping after a target element */
	padding: 4px 1px 2px 0;
	margin: 0 1px;	/* replaced by border for selected/hovered row */

	background-color: none;	// IE6 doesn't understand rgba() or transparent below
	background-color: transparent;	// IE8 doesn't understand rgba() below
	background-color: rgba(171,214,255,0);	// rgba() instead of transparent to prevent flash on hover fade-in
	background-image: url("images/commonHighlight.png");
	background-position:0 0;
	background-repeat:repeat-x;

	border-color: rgba(118,157,192,0);	// rgba() instead of none to prevent flash on hover fade-in
	border-width: 0;

	.transition-property(background-color, border-color);
	.transition-duration(.25s);
	.transition-timing-function(ease-out);
}
.dj_ie6 .claro .dijitTreeRow {
	background-image: none;
}

.claro .dijitTreeRowSelected {
	background-repeat:repeat-x;
	background-color:@selected-background-color;
	padding: 3px 0 1px;
	margin: 0;
	border:solid 1px @selected-border-color;
	color:@selected-text-color;
}
.claro .dijitTreeRowHover {
	background-color:@hovered-background-color;
	padding: 3px 0 1px;
	margin: 0;
	border:solid 1px @hovered-border-color;
	color:@hovered-text-color;
	.transition-duration(.25s);
}
.claro .dijitTreeRowActive {
	background-color:@pressed-background-color;
	background-position:0 -177px;
	padding: 3px 0 1px;
	margin-left: 0;
	border:solid 1px @pressed-border-color;
	color:@selected-text-color;
}
.dj_ie6 .claro .dijitTreeRowActive {
	background-image: none;
}
.claro .dijitTreeRowFocused {
	background-repeat: repeat;
}

/* expando (open/closed) icon */

.claro .dijitTreeExpando {
	background-image: url('images/treeExpandImages.png');
    width: 16px;
    height: 16px;
	background-position: -35px 0;		/* for dijitTreeExpandoOpened */
}
.dj_ie6 .claro .dijitTreeExpando {
	background-image: url('images/treeExpandImages8bit.png');
}
.claro .dijitTreeRowHover .dijitTreeExpandoOpened {
	background-position: -53px 0;
}
.claro .dijitTreeExpandoClosed {
	background-position: 1px 0;
}
.claro .dijitTreeRowHover .dijitTreeExpandoClosed {
	background-position: -17px 0;
}
.claro .dijitTreeExpandoLeaf,
.dj_ie6 .claro .dijitTreeExpandoLeaf {
	background-image:none;
}
.claro .dijitTreeExpandoLoading {
	background-image: url('images/loadingAnimation.gif');
}

/* Drag and Drop on TreeNodes
 * Put insert line on dijitTreeContent node so it's aligned w/
 * (ie, indented equally with) target element, even
 * though dijitTreeRowNode is the actual "drag object"
 */
.claro .dijitTreeNode .dojoDndItemBefore .dijitTreeContent {
	border-top: 2px solid @dnd-dropseparator-color;		// TODO: normal separator is just 1px, why is this 2px?
}
.claro .dijitTreeNode .dojoDndItemAfter .dijitTreeContent {
	border-bottom: 2px solid @dnd-dropseparator-color;	// TODO: normal separator is just 1px, why is this 2px?
}