130 lines
5.2 KiB
Markdown
130 lines
5.2 KiB
Markdown
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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INSTALLATION
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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` (>= 2.5.2) command line tool. This comes with the `nodejs-less`
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RPM package or using `npm install less` which depend on nodejs.
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Here is how you can install those on Debian:
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```
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curl -sL https://deb.nodesource.com/setup_16.x | sudo bash -
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apt-get install -y nodejs
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npm install -g less
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npm install -g less-plugin-clean-css
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```
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Then, go to the `styles` folder, and when you're done editing your files, do the following, as needed:
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```
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$ lessc --clean-css="--s1 --advanced" styles/styles.less > styles/styles.min.css
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$ lessc --clean-css="--s1 --advanced" styles/print.less > styles/print.min.css
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$ lessc --clean-css="--s1 --advanced" styles/embed.less > styles/embed.min.css
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```
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(`--clean-css="--s1 --advanced"` minifies the css, requires the clean-css Less plugin.
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The plugin can be installed using `npm install less-plugin-clean-css`)
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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` before packaging the skin
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or after installing it on the destination system.
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FOR DEVELOPERS
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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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- Skin color palette changes and other css modifications can be done
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via _styles.less and _variables.less files. Where you can overwrite all
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variables and add custom styles.
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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 id="layout-menu"></div>
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<div id="layout-sidebar"></div>
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<div id="layout-list"></div>
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<div id="layout-content"></div>
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</div>
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</body>
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```
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where `#layout-sidebar` and `#layout-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), `lbs` (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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- Dark mode:
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In dark mode html element will have `dark-mode` class assigned.
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It is possible to disable dark mode using less variable `@dark-mode-enabled`.
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Option `dark_mode_support` in meta.json controls addition of the mode switch in the menu.
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KNOWN ISSUES
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------------
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1. There are known issues with running less in Roundcube devel_mode:
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- Dialogs executed on page load are displayed out of screen.
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- CodeMirror editor (in managesieve raw script editing mode) is broken.
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