Changes between Version 3 and Version 4 of TracInterfaceCustomization


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Timestamp:
May 5, 2015, 2:14:40 PM (10 years ago)
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trac
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  • TracInterfaceCustomization

    v3 v4  
    11= Customizing the Trac Interface =
    22[[TracGuideToc]]
     3[[PageOutline]]
    34
    45== Introduction ==
    5 This page is meant to give users suggestions on how they can customize the look of Trac.  Topics on this page cover editing the HTML templates and CSS files, but not the program code itself.  The topics are intended to show users how they can modify the look of Trac to meet their specific needs. Suggestions for changes to Trac's interface applicable to all users should be filed as tickets, not listed on this page.
     6This page gives suggestions on how to customize the look of Trac. Topics include editing the HTML templates and CSS files, but not the program code itself. The topics show users how they can modify the look of Trac to meet their specific needs. Suggestions for changes to Trac's interface applicable to all users should be filed as tickets, not listed on this page.
    67
    78== Project Logo and Icon ==
    8 The easiest parts of the Trac interface to customize are the logo and the site icon.  Both of these can be configured with settings in [wiki:TracIni trac.ini].
    9 
    10 The logo or icon image should be put in a folder named "htdocs" in your project's environment folder.  (''Note: in projects created with a Trac version prior to 0.9 you will need to create this folder'')
     9The easiest parts of the Trac interface to customize are the logo and the site icon. Both of these can be configured with settings in [wiki:TracIni trac.ini].
     10
     11The logo or icon image should be put in a folder named "htdocs" in your project's environment folder. ''Note: in projects created with a Trac version prior to 0.9 you will need to create this folder''.
    1112
    1213 ''Note: you can actually put the logo and icon anywhere on your server (as long as it's accessible through the web server), and use their absolute or server-relative URLs in the configuration.''
    … …  
    1516
    1617=== Logo ===
    17 Change the `src` setting to `site/` followed by the name of your image file.  The `width` and `height` settings should be modified to match your image's dimensions (the Trac chrome handler uses "`site/`" for files within the project directory `htdocs` and "`common/`" for the common ones).
     18Change the `src` setting to `site/` followed by the name of your image file. The `width` and `height` settings should be modified to match your image's dimensions. The Trac chrome handler uses "`site/`" for files within the project directory `htdocs`, and "`common/`" for the common `htdocs` directory belonging to a Trac installation. Note that 'site/' is not a placeholder for your project name, it is the literal prefix that should be used. For example, if your project is named 'sandbox', and the image file is 'red_logo.gif' then the 'src' setting would be 'site/red_logo.gif', not 'sandbox/red_logo.gif'.
    1819
    1920{{{
    … …  
    2627
    2728=== Icon ===
    28 Icons should be a 16x16 image in `.gif` or `.ico` format.  Change the `icon` setting to `site/` followed by the name of your icon file.  Icons will typically be displayed by your web browser next to the site's URL and in the `Bookmarks` menu.
     29Icons are small images displayed by your web browser next to the site's URL and in the `Bookmarks` menu. Icons should be a 32x32 image in `.gif` or `.ico` format. Change the `icon` setting to `site/` followed by the name of your icon file:
    2930
    3031{{{
    … …  
    3334}}}
    3435
    35 Note though that this icon is ignored by Internet Explorer, which only accepts a file named ``favicon.ico`` at the root of the host. To make the project icon work in both IE and other browsers, you can store the icon in the document root of the host, and reference it from ``trac.ini`` as follows:
     36Note that this icon is ignored by Internet Explorer, which only accepts a file named `favicon.ico` at the root of the host. To make the project icon work in IE as well as other browsers, you can store the icon in the document root of the host and then reference it from `trac.ini` as follows:
    3637
    3738{{{
    … …  
    4041}}}
    4142
     43If your browser does not show your favicon in the address bar, append a "?" to the file extension:
     44
     45{{{
     46[project]
     47icon = /favicon.ico?
     48}}}
     49
    4250== Custom Navigation Entries ==
    43 The new [mainnav] and [metanav] can now be used to customize the text and link used for the navigation items, or even to disable them (but not for adding new ones).
    44 
    45 In the following example, we rename the link to the Wiki start "Home", and hide the "Help/Guide". We also make the "View Tickets" entry link to a specific report .
     51The new [mainnav] and [metanav] can now be used to customize the text and link used for the navigation items, or even to disable them, but not for adding new ones.
     52
     53In the following example, we rename the link to the Wiki start "Home", and hide the "!Help/Guide". We also make the "View Tickets" entry link to a specific report:
    4654{{{
    4755[mainnav]
    … …  
    5765== Site Appearance == #SiteAppearance
    5866
    59 Trac is using [http://genshi.edgewall.org Genshi] as the templating engine. Documentation is yet to be written, in the meantime the following tip should work.
    60 
    61 Say you want to add a link to a custom stylesheet, and then your own
    62 header and footer. Save the following content as 'site.html' inside your projects templates directory (each Trac project can have their own site.html), e.g. {{{/path/to/env/templates/site.html}}}:
     67Trac is using [http://genshi.edgewall.org Genshi] as the templating engine. Say you want to add a link to a custom stylesheet, and then your own header and footer. Save the following content as `site.html` inside your projects `templates/` directory (each Trac project can have their own `site.html`), eg {{{/path/to/env/templates/site.html}}}:
    6368
    6469{{{
    … …  
    7176  <head py:match="head" py:attrs="select('@*')">
    7277    ${select('*|comment()|text()')}
    73     <link rel="stylesheet" type="text/css"
    74           href="${href.chrome('site/style.css')}" />
     78    <link rel="stylesheet" href="${href.chrome('site/style.css')}" />
    7579  </head>
    7680
    … …  
    9195}}}
    9296
    93 Those who are familiar with XSLT may notice that Genshi templates bear some similarities. However, there are some Trac specific features - for example '''${href.chrome('site/style.css')}''' attribute references template placed into environment's ''htdocs/''  In a similar fashion '''${chrome.htdocs_location}''' is used to specify common ''htdocs/'' directory from Trac installation.
    94 
    95 site.html is one file to contain all your modifications. It usually works by the py:match (element of attribute), and it allows you to modify the page as it renders - the matches hook onto specific sections depending on what it tries to find
    96 and modify them. A site.html can contain any number of such py:match sections for whatever you need to modify. This is all [http://genshi.edgewall.org/ Genshi], so the docs on the exact syntax can be found there.
    97 
    98 
    99 Example snippet of adding introduction text to the new ticket form (hide when preview):
    100 
    101 {{{
    102 #!xml
     97Notice that XSLT bears some similarities with Genshi templates. However, there are some Trac specific features, for example the `${href.chrome('site/style.css')}` attribute references `style.css` in the environment's `htdocs/` directory. In a similar fashion `${chrome.htdocs_location}` is used to specify the common `htdocs/` directory belonging to a Trac installation. That latter location can however be overriden using the [[TracIni#trac-section|[trac] htdocs_location]] configuration setting.
     98
     99`site.html` is one file to contain all your modifications. It usually works using the `py:match` directive (element or attribute), and it allows you to modify the page as it renders. The matches hook onto specific sections depending on what it tries to find and modify them.
     100See [http://groups.google.com/group/trac-users/browse_thread/thread/70487fb2c406c937/ this thread] for a detailed explanation of the above example `site.html`.
     101A `site.html` can contain any number of such `py:match` sections for whatever you need to modify. This is all Genshi, so the [http://genshi.edgewall.org/wiki/Documentation/xml-templates.html docs on the exact syntax] can be found there.
     102
     103Example snippet of adding introduction text to the new ticket form (but not shown during preview):
     104
     105{{{#!xml
    103106<form py:match="div[@id='content' and @class='ticket']/form" py:attrs="select('@*')">
    104107  <py:if test="req.environ['PATH_INFO'] == '/newticket' and (not 'preview' in req.args)">
    … …  
    109112}}}
    110113
    111 This example illustrates a technique of using '''`req.environ['PATH_INFO']`''' to limit scope of changes to one view only. For instance, to make changes in site.html only for timeline and avoid modifying other sections - use  ''`req.environ['PATH_INFO'] == '/timeline'`'' condition in <py:if> test.
    112 
    113 If the environment is upgraded from 0.10 and a `site_newticket.cs` file already exists, it can actually be loaded by using a workaround - providing it contains no ClearSilver processing. In addition, as only one element can be imported, the content needs some sort of wrapper such as a `<div>` block or other similar parent container. The XInclude namespace must be specified to allow includes, but that can be moved to document root along with the others:
     114This example illustrates a technique of using `req.environ['PATH_INFO']` to limit scope of changes to one view only. For instance, to make changes in `site.html` only for timeline and avoid modifying other sections - use  `req.environ['PATH_INFO'] == '/timeline'` condition in `<py:if>` test.
     115
     116More examples snippets for `site.html` can be found at [trac:wiki:CookBook/SiteHtml CookBook/SiteHtml].
     117
     118Example snippets for `style.css` can be found at [trac:wiki:CookBook/SiteStyleCss CookBook/SiteStyleCss].
     119
     120If the environment is upgraded from 0.10 and a `site_newticket.cs` file already exists, it can be loaded using a workaround - providing it contains no [trac:ClearSilver] processing. In addition, as only one element can be imported, the content needs some sort of wrapper such as a `<div>` block or other similar parent container. The XInclude namespace must be specified to allow includes, but that can be moved to document root along with the others:
    114121{{{
    115122#!xml
    … …  
    123130}}}
    124131
    125 Also note that the `site.html` (despite its name) can be put in a common templates directory - see the `[inherit] templates_dir` option. This could provide easier maintainence (and a migration path from 0.10 for larger installations) as one new global `site.html` file can be made to include any existing header, footer and newticket snippets.
     132Also note that the `site.html`, despite its name, can be put in a shared templates directory, see the [[TracIni#inherit-section|[inherit] templates_dir]] option. This could provide easier maintainence (and a migration path from 0.10 for larger installations) as one new global `site.html` file can be made to include any existing header, footer and newticket snippets.
    126133
    127134== Project List == #ProjectList
    … …  
    129136You can use a custom Genshi template to display the list of projects if you are using Trac with multiple projects. 
    130137
    131 The following is the basic template used by Trac to display a list of links to the projects.  For projects that could not be loaded it displays an error message. You can use this as a starting point for your own index template.
     138The following is the basic template used by Trac to display a list of links to the projects. For projects that could not be loaded, it displays an error message. You can use this as a starting point for your own index template:
    132139
    133140{{{
    … …  
    159166Once you've created your custom template you will need to configure the webserver to tell Trac where the template is located (pls verify ... not yet changed to 0.11):
    160167
     168For [wiki:TracModWSGI mod_wsgi]:
     169{{{
     170os.environ['TRAC_ENV_INDEX_TEMPLATE'] = '/path/to/template.html'
     171}}}
     172
    161173For [wiki:TracFastCgi FastCGI]:
    162174{{{
    … …  
    190202== Project Templates ==
    191203
    192 The appearance of each individual Trac environment (that is, instance of a project) can be customized independently of other projects, even those hosted by the same server. The recommended way is to use a `site.html` template (see [#SiteAppearance]) whenever possible. Using `site.html` means changes are made to the original templates as they are rendered, and you should not normally need to redo modifications whenever Trac is upgraded. If you do make a copy of `theme.html` or any other Trac template, you need to migrate your modifiations to the newer version - if not, new Trac features or bug fixes may not work as expected.
     204The appearance of each individual Trac environment, ie instance of a project, can be customized independently of other projects, even those hosted on the same server. The recommended way is to use a `site.html` template (see [#SiteAppearance]) whenever possible. Using `site.html` means changes are made to the original templates as they are rendered, and you should not normally need to redo modifications whenever Trac is upgraded. If you do make a copy of `theme.html` or any other Trac template, you need to migrate your modifiations to the newer version. If not, new Trac features or bug fixes may not work as expected.
    193205
    194206With that word of caution, any Trac template may be copied and customized. The default Trac templates are located inside the installed Trac egg (`/usr/lib/pythonVERSION/site-packages/Trac-VERSION.egg/trac/templates, .../trac/ticket/templates, .../trac/wiki/templates, ++`). The [#ProjectList] template file is called `index.html`, while the template responsible for main layout is called `theme.html`. Page assets such as images and CSS style sheets are located in the egg's `trac/htdocs` directory.
    195207
    196 However, do not edit templates or site resources inside the Trac egg - installing Trac again can completely delete your modifications. Instead use one of two alternatives:
     208However, do not edit templates or site resources inside the Trac egg. Reinstalling Trac overwrites your modifications. Instead use one of these alternatives:
    197209 * For a modification to one project only, copy the template to project `templates` directory.
    198210 * For a modification shared by several projects, copy the template to a shared location and have each project point to this location using the `[inherit] templates_dir =` trac.ini option.
    … …  
    201213
    202214Trac caches templates in memory by default to improve performance. To apply a template you need to restart the server.
     215
    203216----
    204217See also TracGuide, TracIni