ZK Style Customization Guide/Look and Feel Customization/Customize Component/Borderlayout

Component Reference

Component Reference: Borderlayout, North, South, Center, West, East

DOM Structure

<div class="z-borderlayout">
    <!-- North -->
    <div>
        <div class="z-north">
            <div class="z-north-header">
                <i class="z-borderlayout-icon z-icon-chevron-up"></i>
            </div>
            <div class="z-north-body"></div>
        </div>
        <div class="z-north-splitter">
            <span class="z-north-splitter-button">
                <i class="z-north-icon z-icon-ellipsis-horizontal"></i>
                <i class="z-north-icon z-icon-caret-up"></i>
                <i class="z-north-icon z-icon-ellipsis-horizontal"></i>
            </span>
        </div>
        <div class="z-north-collapsed">
            <i class="z-borderlayout-icon z-icon-chevron-down"></i>
        </div>
    </div>
    <!-- South (same as North) -->
    <!-- East (same as North) -->
    <!-- West (same as North) -->
    <!-- Center -->
    <div>
        <div class="z-center">
            <div class="z-center-header"></div>
            <div class="z-center-body"></div>
        </div>
    </div>
</div>

• Line 6: Chevron-direction Icon Font used for North, South, East and West.

  North: Chevron-up

  South: Chevron-down

  West: Chevron-left

  East: Chevron-right

• Line 12, 14: Ellipsis-horizontal Icon Font used for North and South, Ellipsis-vertical Icon Font used for East and West.
• Line 13: Caret-direction Icon Font used forNorth, South, East and West.

  North: Caret-up

  South: Caret-down

  West: Caret-left

  East:Caret-right

• Line 18: Chevron-direction Icon Font used for Collapsed North, South, East and West.

  South: Chevron-up

  North: Chevron-down

  East: Chevron-left

  West: Chevron-right

LESS Source

Basically, LESS source is correspondent to its DOM structure. North, South, East and West have different styles.

/* borderlayout and it's icon */
.z-borderlayout {
    &-icon {}
}
/* North, South, East, West and Center style */
.z-north,
.z-south,
.z-west,
.z-east,
.z-center {
    &-header {}
    &-body {}
}
.z-north,
.z-south,
.z-west,
.z-east {
    &-collapsed {}
    &-splitter {}
    &-icon {}
}

Check complete LESS source for Borderlayout from Github.

LESS Variables

The following LESS variables are used for Splitter between North, South, East and West components. Check other variables from here.

Variables	Default Value
@splitterGradientStart	#FDFDFD
@splitterGradientEnd	#F1F1F1

Customize Sample

Target Design

Assume the image below is our target design for Borderlayout component and Splitter component.

Implementation Details

Setup environment and Analyze design

• Check the instruction to setup component customization environment.
• Analyze the design
  • Used Color for Borderlayout (include North, South, East, West, and Center)

    Title Text: 14px, #555555

    Border: #E3E3E3

    Background: #FFFFFF

    Icon: 12px, #ACACAC

    Icon Background: #FFFFFF

    Icon Hover: 12px, #FFFFFF

    Icon Hover Background: #5687A8

  • Used Color for Splitter

    Background: #EBEBEB

    Icon: 12px, #ACACAC

  • Borderlayout Size

    Height (North and South): 40px

    Width (East and West): 40px

    Horizontal Padding: 8px

    Vertical Padding: 8px

    Icon: 24px * 24px

  • Splitter Size

    Height (North and South): 8px

    Width (East and West): 8px

Modify borderlayout.less file to achieve target design

Refer here for built-in zk less functions.

• Modify Borderlayout Icon color and size.

.z-borderlayout {
	/* omitted */

	&-icon {
		.iconFontStyle(12px, #ACACAC);
		.displaySize(block, 24px, 24px);
		line-height: 24px;
		.opacity(1);
		position: absolute;
		right: 8px; /* horizontal padding */
		/* omitted */
		
		&:hover {
			color: #FFFFFF;
			background: #5687A8;
		}
	}
}

• Modify Borderlayout Title (North, South, East, West and Center) color and size.

.z-north,
.z-south,
.z-west,
.z-center,
.z-east {
	border: 1px solid #E3E3E3;
	/* omitted */

	&-header {
		.fontStyle(@baseTitleFontFamily, 14px, bold, #555555);
		height: 40px;
		border-bottom: 1px solid #E3E3E3;
		padding: 8px 8px 7px;
		line-height: 24px;
		.verGradient(#FFFFFF, #FFFFFF); /* no gradient, pass the same color arguments for the function */
		/* omitted */
	}

	&-collapsed {
		.size(40px, 40px);
		border: 1px solid #E3E3E3;
		padding: 8px;
		background: #FFFFFF;
		/* omitted */
	}

	&-caption {
		height: 40px;
	}
}

• Modify Splitter (North, South, East, West and Center) color and size.

.z-east,
.z-west,
.z-north,
.z-south {
	&-splitter {
		.size(8px, 8px);
		.horGradient(#EBEBEB, #EBEBEB); /* no gradient, pass the same color arguments for the function */
		/* omitted */

		// splitter-button
		&-button {
			color: #ACACAC;
			border: 0; /* no border */
			/* omitted */
		}
		&-button-disabled {
			border: 0;
		}
	}

	&-icon {
		font-size: 12px;
		.opacity(1);
		/* omitted */
	}
}
.z-north-splitter,
.z-south-splitter {
	border-left: 1px solid #E3E3E3;
	border-right: 1px solid #E3E3E3;
	.verGradient(#EBEBEB, #EBEBEB); /* no gradient, pass the same color arguments for the function */
	/* omitted */
}

/* don't need Ellipsis icons  */
.z-west-icon.z-icon-ellipsis-vertical,
.z-east-icon.z-icon-ellipsis-vertical {
	display: none;
}
.z-north-icon.z-icon-ellipsis-horizontal,
.z-south-icon.z-icon-ellipsis-horizontal {
	display: none;
}

Final result

Additional Customization

The collapsed bar position is decide by LayoutRegion.getCmargins(). Therefore, it is not possible to change the position of collpased bar by CSS. However, it can still be customized by LayoutRegion.setCmargins(String) like the following.

<borderlayout width="600px" height="400px">
	<east title="East" size="20%" collapsible="true" splittable="true" cmargins="0, 3, 0, 0">
	</east>
</borderlayout>

Version History

Version	Date	Content