/*
    JSPWiki - a JSP-based WikiWiki clone.

    Licensed to the Apache Software Foundation (ASF) under one
    or more contributor license agreements.  See the NOTICE file
    distributed with this work for additional information
    regarding copyright ownership.  The ASF licenses this file
    to you under the Apache License, Version 2.0 (the
    "License"); fyou may not use this file except in compliance
    with the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing,
    software distributed under the License is distributed on an
    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    KIND, either express or implied.  See the License for the
    specific language governing permissions and limitations
    under the License.
*/
/*
Style: Collapsible
    Generic support for Collapsible.List, Collapsible.Box

DOM structure:
(start code)
    li
        b.bullet
        .. content ..
    li
        b.bullet(.clpse)(.xpand)
        ul
            li .. content ..
            li .. content ..
(end)
*/
.bullet {
    display:inline-block;
    outline:0;
    float:left;
    width:2em;
    line-height:1.4; //heuristic, for vertical

    // triangular bullets
    width:0;
    height:0;
    border:.4em solid transparent;
    border-radius: @border-radius-base; //smooth edges
    border-left-color: @text-color;
    border-right: none;
    margin: .3em .9em .3em .7em;

    &.clpse {
        cursor: pointer;
        border-left-color: @link-color;
        &:hover { border-left-color: @link-hover-color; }
    }
    &.xpand {
        cursor: pointer;
        border: .4em solid transparent; //reset
        border-top-color: @link-color;
        border-bottom: none;
        margin: .5em .6em .5em .6em;
        &:hover { border-top-color: @link-hover-color; }
    }

}
.xpand, .clpse { overflow:hidden; }


// CHECKME: Make sure to print collapsed items as if they were not collapsed
//move to print.less
@media print {
    div.clpse {
        display:block;
        height:auto !important;
        //width:auto !important;
    }
}


/*
TODO: Experimental - css3 animation iso mootools tween.
div.xpand { .transition(all .5s ease); height:auto; }
div.clpse { .transition(all .5s ease); height:0; }
*/


/*
Style: Collapsible.List
>   %%collapse

DOM structure:
(start code)
div.collapse
    ul
        li
            b.bullet
            .. li-text ..
        li
            b.bullet(.xpand)(.clpse)
            .. li-text ..
            ul.xpand|clpse
                li ..collapsible content ..
                li ..collapsible content ..
(end)
*/
.collapse {

    > ul, > ol { margin-left:-2em; }  // first ul/ol, shift left to create space for the bullets
    ul, ol { list-style:none;  }

    //li:not(.xpand), li:not(.clpse) { list-style:auto; .bullet {display:none;} }
    li { white-space:nowrap; overflow:hidden; }  //assume li-items fit on one line

}


/*
Style: Collapsible-Box
>   %%collapsebox
>   %%collapsebox-closed

DOM structure:
(start code)
    //before
    div.collapsebox
        b.bullet.xpand|clpse'[click='...']
        h1-4  title
        .. collapsible content ..

    //after
    div.panel.panel-default
        div.panel-heading
            b.bullet.xpand|clpse[onclick="..."]
            h4.panel-title title
        div.panel-body.xpand|clpse
            .. collapsible content ..
(end)
*/
//re-use bootstrap/panels.less
div[class^=collapsebox] {

    > .panel-heading { padding-left:0; } //remove some left space next to the bullet

    //coloured collapseboxes get white bullets
    &:not(.panel-default) .bullet {
        &.xpand, &.xpand:hover { border-top-color: @white; }
        &.clpse, &.clpse:hover { border-left-color: @white; }
    }
}