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Roundcube Webmail Skin "Elastic"
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================================
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This skin package contains a theme for the Roundcube Webmail
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software. It can be used, modified and redistributed according to
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the terms described in the LICENSE section.
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For information about building or modifying Roundcube skins please visit
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https://github.com/roundcube/roundcubemail/wiki/Skins
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LICENSE
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-------
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The contents of this folder are subject to the Creative Commons
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Attribution-ShareAlike License. It is allowed to copy, distribute,
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transmit and to adapt the work by keeping credits to the original
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authors in the README.md file.
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See http://creativecommons.org/licenses/by-sa/3.0/ for details.
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This folder also contains code licensed separately:
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- Bootstrap Framework 4 from https://github.com/twbs/bootstrap
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- FontAwesome 5 fonts from https://fontawesome.com/
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- Roboto font from https://google-webfonts-helper.herokuapp.com/fonts/roboto?subsets=cyrillic,latin-ext,cyrillic-ext,latin,greek,greek-ext
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PROJECT GOALS
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-------------
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Create a user interface that is clean and usable with any screen size.
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Use new technologies like e.g. flexbox, @media, font-icons or less.
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Cleanup css/html and unify as much as possible.
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INSTALLATION (development):
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---------------------------
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1. git clone https://github.com/roundcube/roundcubemail.git
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2. cd roundcubemail/skins
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3. git clone https://github.com/roundcube/elastic.git
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4. Disable all external plugins and set devel_mode=true.
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INSTALLATION (production):
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--------------------------
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All styles are written using LESS syntax. Thus it needs to be compiled
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using the `lessc` command line tool. This comes with the `nodejs-less`
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RPM package which depends on nodejs.
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```
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$ lessc -x styles/styles.less > styles/styles.css
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$ lessc -x styles/print.less > styles/print.css
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$ lessc -x styles/embed.less > styles/embed.css
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```
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(the -x option minifies the CSS code)
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References to image files from the included CSS files can be appended
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with cache-buster marks to avoid browser caching issues after updating.
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Run `bin/updatecss.sh --dir skins/elastic` from the Roundcube
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package before packaging the skin or after installing it on the
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destination system.
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RULES:
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------
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- Supported browsers: IE11+, Edge, Last 2 versions for Chrome/Firefox/Safari,
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Android Browser 5+, iOS Safari 9+.
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- Minimum supported screen width is 240px (note that even if the device screen
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resolution is e.g.320x372 changing the text size in device settings will reduce
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the resolution)
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- Every page (which is not a frame) has following required structure:
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```
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<body>
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<div id="layout">
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<div class="menu"></div>
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<div class="sidebar"></div>
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<div class="list"></div>
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<div class="content"></div>
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</div>
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</body>
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```
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where `sidebar` and `list` are optional. Which element of the `layout` will be displayed
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as a main view on mobile devices can be defined by adding `selected` class to it.
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- The `<html>` element will receive special classes that will be updated on resize
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or orientation change:
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- `touch`: A touch device, screen width <= 1024px,
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- 'layout-large`: Screen width > 1200px,
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- `layout-normal`: Screen width <= 1200px and >= 768px,
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- `layout-small`: Screen width < 768px and > 480px,
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- `layout-phone`: Screen width <= 480px.
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Frames will have the same classes applied as their parent windows.
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- Every button, that is not <button> nor <input> should have inner <span class="inner"> element
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for the button label.
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- Every iframe need to be wrapped by an element with `iframe-wrapper` class. It is
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required to have proper scrolling on mobile devices.
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- Special attributes:
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- `data-hidden`: Makes a menu entry/button hidden on specified screen sizes.
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Can be used for example for functionality not implemented or that has no sense
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on phones or touch devices. Contains a comma-separated list following values:
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`large` (width > 1200px), `big` (width > 768px), `small` (width =< 768px),
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`phone` (width =< 480px).
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- `data-content-button`: Makes the action button with this attribute to be copied
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to the content frame header on small/phone screens.
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- Special URLs:
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In phone mode we display Prev/Next navigation buttons below the content preview
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frame. We do this e.g. for mail preview or contact preview. Plugins should use
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_action=add* or _action=create* or _nav=hide in the frame URL if the navigation
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should be hidden, which is the case when you create a content object.
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