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// |
| 2 |
// Dropdown menus |
| 3 |
// -------------------------------------------------- |
| 4 |
|
| 5 |
|
| 6 |
// Dropdown arrow/caret |
| 7 |
.caret { |
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display: inline-block; |
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width: 0; |
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height: 0; |
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margin-left: 2px; |
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vertical-align: middle; |
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border-top: @caret-width-base dashed; |
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border-top: @caret-width-base solid ~"\9"; // IE8 |
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border-right: @caret-width-base solid transparent; |
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border-left: @caret-width-base solid transparent; |
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} |
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|
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// The dropdown wrapper (div) |
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.dropup, |
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.dropdown { |
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position: relative; |
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} |
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|
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// Prevent the focus on the dropdown toggle when closing dropdowns |
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.dropdown-toggle:focus { |
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outline: 0; |
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} |
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|
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// The dropdown menu (ul) |
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.dropdown-menu { |
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position: absolute; |
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top: 100%; |
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left: 0; |
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z-index: @zindex-dropdown; |
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display: none; // none by default, but block on "open" of the menu |
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float: left; |
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min-width: 160px; |
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padding: 5px 0; |
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margin: 2px 0 0; // override default ul |
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list-style: none; |
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font-size: @font-size-base; |
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text-align: left; // Ensures proper alignment if parent has it changed (e.g., modal footer) |
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background-color: @dropdown-bg; |
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border: 1px solid @dropdown-fallback-border; // IE8 fallback |
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border: 1px solid @dropdown-border; |
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border-radius: @border-radius-base; |
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.box-shadow(0 6px 12px rgba(0,0,0,.175)); |
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background-clip: padding-box; |
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|
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// Aligns the dropdown menu to right |
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// |
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// Deprecated as of 3.1.0 in favor of `.dropdown-menu-[dir]` |
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&.pull-right { |
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right: 0; |
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left: auto; |
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} |
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|
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// Dividers (basically an hr) within the dropdown |
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.divider { |
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.nav-divider(@dropdown-divider-bg); |
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} |
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|
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// Links within the dropdown menu |
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> li > a { |
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display: block; |
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padding: 3px 20px; |
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clear: both; |
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font-weight: normal; |
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line-height: @line-height-base; |
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color: @dropdown-link-color; |
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white-space: nowrap; // prevent links from randomly breaking onto new lines |
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} |
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} |
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|
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// Hover/Focus state |
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.dropdown-menu > li > a { |
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&:hover, |
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&:focus { |
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text-decoration: none; |
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color: @dropdown-link-hover-color; |
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background-color: @dropdown-link-hover-bg; |
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} |
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} |
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|
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// Active state |
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.dropdown-menu > .active > a { |
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&, |
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&:hover, |
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&:focus { |
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color: @dropdown-link-active-color; |
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text-decoration: none; |
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outline: 0; |
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background-color: @dropdown-link-active-bg; |
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} |
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} |
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|
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// Disabled state |
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// |
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// Gray out text and ensure the hover/focus state remains gray |
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|
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.dropdown-menu > .disabled > a { |
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&, |
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&:hover, |
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&:focus { |
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color: @dropdown-link-disabled-color; |
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} |
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|
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// Nuke hover/focus effects |
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&:hover, |
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&:focus { |
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text-decoration: none; |
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background-color: transparent; |
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background-image: none; // Remove CSS gradient |
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.reset-filter(); |
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cursor: @cursor-disabled; |
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} |
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} |
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|
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// Open state for the dropdown |
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.open { |
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// Show the menu |
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> .dropdown-menu { |
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display: block; |
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} |
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|
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// Remove the outline when :focus is triggered |
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> a { |
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outline: 0; |
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} |
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} |
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|
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// Menu positioning |
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// |
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// Add extra class to `.dropdown-menu` to flip the alignment of the dropdown |
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// menu with the parent. |
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.dropdown-menu-right { |
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left: auto; // Reset the default from `.dropdown-menu` |
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right: 0; |
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} |
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// With v3, we enabled auto-flipping if you have a dropdown within a right |
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// aligned nav component. To enable the undoing of that, we provide an override |
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// to restore the default dropdown menu alignment. |
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// |
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// This is only for left-aligning a dropdown menu within a `.navbar-right` or |
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// `.pull-right` nav component. |
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.dropdown-menu-left { |
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left: 0; |
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right: auto; |
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} |
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|
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// Dropdown section headers |
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.dropdown-header { |
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display: block; |
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padding: 3px 20px; |
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font-size: @font-size-small; |
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line-height: @line-height-base; |
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color: @dropdown-header-color; |
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white-space: nowrap; // as with > li > a |
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} |
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|
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// Backdrop to catch body clicks on mobile, etc. |
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.dropdown-backdrop { |
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position: fixed; |
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left: 0; |
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right: 0; |
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bottom: 0; |
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top: 0; |
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z-index: (@zindex-dropdown - 10); |
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} |
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|
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// Right aligned dropdowns |
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.pull-right > .dropdown-menu { |
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right: 0; |
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left: auto; |
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} |
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|
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// Allow for dropdowns to go bottom up (aka, dropup-menu) |
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// |
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// Just add .dropup after the standard .dropdown class and you're set, bro. |
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// TODO: abstract this so that the navbar fixed styles are not placed here? |
| 182 |
|
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.dropup, |
| 184 |
.navbar-fixed-bottom .dropdown { |
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// Reverse the caret |
| 186 |
.caret { |
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border-top: 0; |
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border-bottom: @caret-width-base dashed; |
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border-bottom: @caret-width-base solid ~"\9"; // IE8 |
| 190 |
content: ""; |
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} |
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// Different positioning for bottom up menu |
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.dropdown-menu { |
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top: auto; |
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bottom: 100%; |
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margin-bottom: 2px; |
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} |
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} |
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|
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|
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// Component alignment |
| 202 |
// |
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// Reiterate per navbar.less and the modified component alignment there. |
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|
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@media (min-width: @grid-float-breakpoint) { |
| 206 |
.navbar-right { |
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.dropdown-menu { |
| 208 |
.dropdown-menu-right(); |
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} |
| 210 |
// Necessary for overrides of the default right aligned menu. |
| 211 |
// Will remove come v4 in all likelihood. |
| 212 |
.dropdown-menu-left { |
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.dropdown-menu-left(); |
| 214 |
} |
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} |
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} |
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|
