element-web/res/css/structures/_LeftPanel.scss

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/*
Copyright 2020 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you 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.
*/
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$tagPanelWidth: 56px; // only applies in this file, used for calculations
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.mx_LeftPanel {
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background-color: $roomlist-bg-color;
min-width: 260px;
max-width: 50%;
// Create a row-based flexbox for the TagPanel and the room list
display: flex;
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.mx_LeftPanel_tagPanelContainer {
flex-grow: 0;
flex-shrink: 0;
flex-basis: $tagPanelWidth;
height: 100%;
// Create another flexbox so the TagPanel fills the container
display: flex;
// TagPanel handles its own CSS
}
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&:not(.mx_LeftPanel_hasTagPanel) {
.mx_LeftPanel_roomListContainer {
width: 100%;
}
}
// Note: The 'room list' in this context is actually everything that isn't the tag
// panel, such as the menu options, breadcrumbs, filtering, etc
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.mx_LeftPanel_roomListContainer {
width: calc(100% - $tagPanelWidth);
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background-color: $roomlist-bg-color;
// Create another flexbox (this time a column) for the room list components
display: flex;
flex-direction: column;
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.mx_LeftPanel_userHeader {
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/* 12px top, 12px sides, 20px bottom (using 13px bottom to account
* for internal whitespace in the breadcrumbs)
*/
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padding: 12px;
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flex-shrink: 0; // to convince safari's layout engine the flexbox is fine
// Create another flexbox column for the rows to stack within
display: flex;
flex-direction: column;
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}
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.mx_LeftPanel_breadcrumbsContainer {
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overflow-y: hidden;
overflow-x: scroll;
margin: 12px 12px 0 12px;
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flex: 0 0 auto;
// Create yet another flexbox, this time within the row, to ensure items stay
// aligned correctly. This is also a row-based flexbox.
display: flex;
align-items: center;
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&.mx_IndicatorScrollbar_leftOverflow {
mask-image: linear-gradient(90deg, transparent, black 5%);
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}
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&.mx_IndicatorScrollbar_rightOverflow {
mask-image: linear-gradient(90deg, black, black 95%, transparent);
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}
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&.mx_IndicatorScrollbar_rightOverflow.mx_IndicatorScrollbar_leftOverflow {
mask-image: linear-gradient(90deg, transparent, black 5%, black 95%, transparent);
}
}
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.mx_LeftPanel_filterContainer {
margin-left: 12px;
margin-right: 12px;
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flex-shrink: 0; // to convince safari's layout engine the flexbox is fine
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// Create a flexbox to organize the inputs
display: flex;
align-items: center;
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.mx_RoomSearch_expanded + .mx_LeftPanel_exploreButton {
// Cheaty way to return the occupied space to the filter input
flex-basis: 0;
margin: 0;
width: 0;
// Don't forget to hide the masked ::before icon,
// using display:none or visibility:hidden would break accessibility
&::before {
content: none;
}
}
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.mx_LeftPanel_exploreButton {
width: 28px;
height: 28px;
border-radius: 20px;
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background-color: $roomlist-button-bg-color;
position: relative;
margin-left: 8px;
&::before {
content: '';
position: absolute;
top: 6px;
left: 6px;
width: 16px;
height: 16px;
mask-image: url('$(res)/img/feather-customised/compass.svg');
mask-position: center;
mask-size: contain;
mask-repeat: no-repeat;
background: $primary-fg-color;
}
}
}
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.mx_LeftPanel_roomListWrapper {
// Create a flexbox to ensure the containing items cause appropriate overflow.
display: flex;
flex-grow: 1;
overflow: hidden;
min-height: 0;
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margin-top: 10px; // so we're not up against the search/filter
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&.mx_LeftPanel_roomListWrapper_stickyBottom {
padding-bottom: 32px;
}
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&.mx_LeftPanel_roomListWrapper_stickyTop {
padding-top: 32px;
}
}
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.mx_LeftPanel_actualRoomListContainer {
flex-grow: 1; // fill the available space
overflow-y: auto;
width: 100%;
max-width: 100%;
position: relative; // for sticky headers
// Create a flexbox to trick the layout engine
display: flex;
}
}
// These styles override the defaults for the minimized (66px) layout
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&.mx_LeftPanel_minimized {
min-width: unset;
// We have to forcefully set the width to override the resizer's style attribute.
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&.mx_LeftPanel_hasTagPanel {
width: calc(68px + $tagPanelWidth) !important;
}
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&:not(.mx_LeftPanel_hasTagPanel) {
width: 68px !important;
}
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.mx_LeftPanel_roomListContainer {
width: 68px;
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.mx_LeftPanel_filterContainer {
// Organize the flexbox into a centered column layout
flex-direction: column;
justify-content: center;
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.mx_LeftPanel_exploreButton {
margin-left: 0;
margin-top: 8px;
background-color: transparent;
}
}
}
}
}