file Structure

To edit those, created a separate base theme BaseTheme that contain standard styles and settings common to all themes and can be overridden in each. In this paper, we focus on an example implementation of one control and will not be affected shape.

The file structure in a General view looks so:

    • BaseTheme
  • Controls
  • SomeControl
  • Images
  • _Variables.less
  • Lookup.less
  • Theme
  • Controls
  • SomeControl
  • Images
  • _Settings.less
  • _Variables.less
  • Lookup.less
  • Base.less
  • Base.css

In this structure example, there is only one theme Theme, which contains a single control SomeControl. That means each file will be discussed below.

Level-BaseTheme

Inside the base theme folder is stored Controls, which contains any controls. In this case, a single control SomeControl. Inside this folder contain a folder Images that stores pictures for control and two .less file.

_Variables.less - contains a set of variables for use in styles. Variables include: class names and IDs, colors, and indentation.

SomeControl.less - contains standard styles for the control. These include the location of elements on the page, standard colors, and indentation.

Level Theme

Theme corresponds to one of the existing themes. Inside the theme, as in the case of BaseTheme, a folder is stored Controls, which contains SomeControl. Inside this folder there is a folder Images that contains images specifically for the control and three .less file.

The purpose _Variables.less and SomeControl.less remains unchanged. File _Settings.less is used to override existing styles and improvements in applied projects

Implementation on the example control Lookup

As an example, will be considered simple lookup consisting of input type text and two buttons.

The file structure will look as follows:

    • BaseTheme
  • Controls
  • Lookup
  • Images
  • _Variables.less
  • SomeControl.less
  • Theme
  • Controls
  • Lookup
  • Images
  • _Settings.less
  • _Variables.less
  • SomeControl.less
  • Base.less
  • Base.css

Разметка лукапа

<body>
    <div class="control">
        <div>Тестовы лукап</div>
        <div class=txtInput>
            <input type="text">
        </div>
        <div class="viewBtn">
            <span></span>
        </div>
        <div class="deleteBtn">
            <span></span>
        </div>
    </div>
</body>

For a start, will be discussed the implementation at the level of basic themes. All class names must be put into variables and add to _Variables.less. This file must be imported into Lookup.less at the beginning - to define styles - keyword (reference) allows you to import the contents of the file, not add it physically. This allows us not to import the same record several times.

@parentControlClass: control;
@textInputClass: txtInput;
@viewBtnClass: viewBtn;
@deleteBtnClass: deleteBtn;

@inputBorderColor: #B9B9B9;
@btnHoveredBackgroundColor: #f0f0f0;

Further, in Lookup.less need to register the default styles for a control, namely the base color, location of elements on the page. The end result is something like this:

.@import (reference) '_Variables.less';

@{parentControlClass} {
    text-align: center;
    margin-top: 10%;

    .@{viewBtnClass},
    .@{deleteBtnClass} {
        display: inline-block;
        margin-right: -6px;
        margin-left: -7px;
        padding: 4px;
        width: 24px;
        height: 24px;
        border: 1px solid #9B9B9B;
        -moz-border-radius: 0;
        -webkit-border-radius: 0;
        background-image: -moz-linear-gradient(top, #ffffff, #cecece);
        background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#ffffff), to(#cecece));
        background-image: -webkit-linear-gradient(top, #ffffff, #cecece);
        background-image: -o-linear-gradient(top, #ffffff, #cecece);
        background-image: linear-gradient(to bottom, #ffffff, #cecece);
        -moz-box-shadow: inset 0 0 1px 1px #fff;
        -webkit-box-shadow: inset 0 0 1px 1px #fff;
        box-shadow: inset 0 0 1px 1px #fff;
        vertical-align: top;
        cursor: pointer;

        span {
            display: inline-block;
            margin-top: -1px;
            padding: 0;
            width: 16px;
            height: 16px;
            vertical-align: middle;
            line-height: 0;
            filter: none;
        }
    }

    .@{deleteBtnClass} {
        margin: 0;
    }

    .@{textInputClass} {
        display: inline-block;

        input {
            padding-left: 8px;
            height: 28px;

            &:focus {
                outline: none;
            }
        }
    }
}

You also need to _Variables.less add variables containing the basic colors lucapa. In this example, one variable is considered responsible for the color of the border input`a.

@inputBorderColor: #B9B9B9;

As a result of all of the action happens standard control. Further, it is possible to change and extend depending on the topic, in which it is located.

Example at the level of themes Theme.

In Lookup.less to the style definitions you want to import Lookup.less of BaseTheme. Next, you can add new styles. All new padding, colors, classes, IDs should be taken in _Variables.less, which is Theme. Also in this same file are submitted to the colors used in control. _Variables.less you need to connect at the very end - after styles in order to overload the existing variables. Additionally, Lookup - in the end - you need to connect _Settings.less. This file is used for applied projects. To work the variables used in the theme, you need to import _Variables.less as of Theme and BaseTheme.

The result:

_Variables.less

@textColor: red;
@inputFocusedBackgroundColor: yellow;
@inputBorderColor: #000;
@inputTextColor: blue;

Lookup.less

@import '../../../BaseTheme/Controls/Lookup/Lookup.less';

.@{parentControlClass} {
    div:first-child {
        color: @textColor;
        font-weight: bold;
        font-style: italic;
        font-size: 25px;
    }

    .@{viewBtnClass},
    .@{deleteBtnClass} {
        span {
            background-image: url("lookup-icons.png");
            background-position: 0 0;
            background-repeat: no-repeat;
        }
    }

    .@{deleteBtnClass} {
        border-top-right-radius: 6px;
        border-bottom-right-radius: 6px;

        span {
            background-position: 20% 0;
        }
    }

    .@{textInputClass} {
        input {
            height: 30px;
            border: 1px solid @inputBorderColor;
            border-top-left-radius: 6px;
            border-bottom-left-radius: 6px;
            color: @inputTextColor;

            &:focus {
                background: @inputFocusedBackgroundColor;
            }
        }
    }
}

@import (reference) '_Variables.less';
@import '_Settings.less';

Example _Settings.less as follows:

@import (reference) '../../../BaseTheme/Controls/Lookup/_Variables.less';
@import (reference) '_Variables.less';
.@{parentControlClass} {
    .@{deleteBtnClass} {
        span {
            background-position: -65px 100%;
        }
    }
}

As a result, the icon of the button will display differently.

After full adjustment lucapa, file Lookup.less (Theme) must be imported into Base.less. After compilation will be obtained Base.css. Will be thus considered as rules in the basic theme and. In addition, we will podprugin all the settings on applied projects and General settings for the.

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