Changes between Version 3 and Version 4 of TracInterfaceCustomization


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Timestamp:
Apr 24, 2020, 9:10:21 AM (5 years ago)
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trac
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  • TracInterfaceCustomization

    v3 v4  
    1 = Customizing the Trac Interface =
     1= Customizing the Trac Interface
    22[[TracGuideToc]]
    3 [[PageOutline]]
     3[[PageOutline(2-5,Contents,pullout)]]
    44
    5 == Introduction ==
    6 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.
     5This 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.
    76
    8 == Project Logo and Icon ==
    9 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].
     7== Project Logo and Icon
     8The easiest parts of the Trac interface to customize are the logo and the site icon. Both of these can be configured with settings in [TracIni#project-section trac.ini].
    109
    11 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'')
     10The logo or icon image should be put your environment's `htdocs` directory. 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.
    1211
    13  ''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.''
     12Next, configure the appropriate section of your trac.ini:
    1413
    15 Now configure the appropriate section of your [wiki:TracIni trac.ini]:
     14=== Logo
     15Change 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. 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`.
    1616
    17 === Logo ===
    18 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 `htdocs` directory belonging to a Trac installation). Note that 'site/' is not a placeholder for your project name, it is the actual prefix that should be used (literally). 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'.
    19 
    20 {{{
     17{{{#!ini
    2118[header_logo]
    2219src = site/my_logo.gif
    … …  
    2623}}}
    2724
    28 === Icon ===
    29 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.  Icons will typically be displayed by your web browser next to the site's URL and in the `Bookmarks` menu.
     25=== Icon
     26Icons 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:
    3027
    31 {{{
     28{{{#!ini
    3229[project]
    3330icon = site/my_icon.ico
    3431}}}
    3532
    36 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:
     33== Custom Navigation Entries
     34The `[mainnav]` and `[metanav]` sections of trac.ini be used to customize the navigation items' text and link, or even disable them, but not for adding new ones.
    3735
    38 {{{
    39 [project]
    40 icon = /favicon.ico
    41 }}}
    42 
    43 Should your browser have issues with your favicon showing up in the address bar, you may put a "?" (less the quotation marks) after your favicon file extension.
    44 
    45 {{{
    46 [project]
    47 icon = /favicon.ico?
    48 }}}
    49 
    50 == Custom Navigation Entries ==
    51 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).
    52 
    53 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 .
    54 {{{
     36In 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:
     37{{{#!ini
    5538[mainnav]
    5639wiki.label = Home
    … …  
    6144}}}
    6245
    63 See also TracNavigation for a more detailed explanation of the mainnav and metanav terms.
     46See also TracNavigation for a more detailed explanation of the mainnav and metanav navigation.
    6447
    65 == Site Appearance == #SiteAppearance
     48== Site Appearance #SiteAppearance
    6649
    67 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.
     50Trac 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`:
    6851
    69 Say you want to add a link to a custom stylesheet, and then your own
    70 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}}}:
    71 
    72 {{{
    73 #!xml
     52{{{#!xml
    7453<html xmlns="http://www.w3.org/1999/xhtml"
    7554      xmlns:py="http://genshi.edgewall.org/"
    … …  
    7958  <head py:match="head" py:attrs="select('@*')">
    8059    ${select('*|comment()|text()')}
    81     <link rel="stylesheet" type="text/css"
    82           href="${href.chrome('site/style.css')}" />
     60    <link rel="stylesheet" href="${href.chrome('site/style.css')}" />
    8361  </head>
    8462
    … …  
    9977}}}
    10078
    101 Those who are familiar with XSLT may notice that Genshi templates bear some similarities. However, there are some Trac specific features - for example `${href.chrome('site/style.css')}` attribute references a CSS file placed into environment's `htdocs/` directory. In a similar fashion `${chrome.htdocs_location}` is used to specify the common `htdocs/` directory belonging to a Trac installation. That latter location can however be overriden using the [[TracIni#trac-config|[trac] htdocs_location]] configuration setting.
     79Notice that XSLT bears some similarities with Genshi templates. However, there are some Trac specific features, for example the `${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-htdocs_location-option "[trac] htdocs_location"] setting.
    10280
    103 `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
    104 and modify them.
    105 See [http://groups.google.com/group/trac-users/browse_thread/thread/70487fb2c406c937/ this thread] for a detailed explanation of the above example `site.html`.
    106 A `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.
    107 
     81`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 into specific sections. See [http://groups.google.com/group/trac-users/browse_thread/thread/70487fb2c406c937/ this thread] for a detailed explanation of the above example `site.html`.
     82A `site.html` can contain any number of `py:match` sections. This is all Genshi, so the [http://genshi.edgewall.org/wiki/Documentation/xml-templates.html docs on the exact syntax] can be found there.
    10883
    10984Example snippet of adding introduction text to the new ticket form (but not shown during preview):
    … …  
    11186{{{#!xml
    11287<form py:match="div[@id='content' and @class='ticket']/form" py:attrs="select('@*')">
    113   <py:if test="req.environ['PATH_INFO'] == '/newticket' and (not 'preview' in req.args)">
     88  <py:if test="req.path_info == '/newticket' and (not 'preview' in req.args)">
    11489    <p>Please make sure to search for existing tickets before reporting a new one!</p>
    11590  </py:if>
    … …  
    11893}}}
    11994
    120 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.
     95This example illustrates a technique of using `req.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.path_info == '/timeline'` as the condition in a `<py:if>` test.
    12196
    12297More examples snippets for `site.html` can be found at [trac:wiki:CookBook/SiteHtml CookBook/SiteHtml].
    … …  
    12499Example snippets for `style.css` can be found at [trac:wiki:CookBook/SiteStyleCss CookBook/SiteStyleCss].
    125100
    126 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:
    127 {{{
    128 #!xml
    129 <form py:match="div[@id='content' and @class='ticket']/form" py:attrs="select('@*')"
    130         xmlns:xi="http://www.w3.org/2001/XInclude">
    131   <py:if test="req.environ['PATH_INFO'] == '/newticket' and (not 'preview' in req.args)">
    132     <xi:include href="site_newticket.cs"><xi:fallback /></xi:include>
    133   </py:if>
    134   ${select('*')}
    135 </form>
    136 }}}
     101Note that the `site.html`, despite its name, can be put in a shared templates directory, see the [[TracIni#inherit-templates_dir-option|[inherit] templates_dir]] option. This could provide easier maintainence as one new global `site.html` file can be made to include any existing header, footer and newticket snippets.
    137102
    138 Also note that the `site.html` (despite its name) can be put in a common 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.
     103== Project List #ProjectList
    139104
    140 == Project List == #ProjectList
     105You can use a custom Genshi template to display the list of projects if you are using Trac with multiple projects.
    141106
    142 You can use a custom Genshi template to display the list of projects if you are using Trac with multiple projects. 
     107The 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:
    143108
    144 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.
    145 
    146 {{{
    147 #!text/html
     109{{{#!text/html
    148110<!DOCTYPE html
    149111    PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    … …  
    170132}}}
    171133
    172 Once 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):
     134Once you've created your custom template you will need to configure the webserver to tell Trac where the template is located:
    173135
    174136For [wiki:TracModWSGI mod_wsgi]:
    175 {{{
    176 os.environ['TRAC_ENV_INDEX_TEMPLATE'] = '/path/to/template'
     137{{{#!python
     138os.environ['TRAC_ENV_INDEX_TEMPLATE'] = '/path/to/template.html'
    177139}}}
    178140
    179 For [wiki:TracFastCgi FastCGI]:
    180 {{{
     141For [TracFastCgi FastCGI]:
     142{{{#!apache
    181143FastCgiConfig -initial-env TRAC_ENV_PARENT_DIR=/parent/dir/of/projects \
    182144              -initial-env TRAC_ENV_INDEX_TEMPLATE=/path/to/template
    183145}}}
    184146
    185 For [wiki:TracModPython mod_python]:
    186 {{{
     147For [TracModPython mod_python]:
     148{{{#!apache
    187149PythonOption TracEnvParentDir /parent/dir/of/projects
    188150PythonOption TracEnvIndexTemplate /path/to/template
    189151}}}
    190152
    191 For [wiki:TracCgi CGI]:
    192 {{{
     153For [TracCgi CGI]:
     154{{{#!apache
    193155SetEnv TRAC_ENV_INDEX_TEMPLATE /path/to/template
    194156}}}
    195157
    196 For [wiki:TracStandalone], you'll need to set up the `TRAC_ENV_INDEX_TEMPLATE` environment variable in the shell used to launch tracd:
    197  - Unix
    198    {{{
    199 #!sh
     158For TracStandalone, you'll need to set up the `TRAC_ENV_INDEX_TEMPLATE` environment variable in the shell used to launch tracd:
     159 - Unix:
     160   {{{#!sh
    200161$ export TRAC_ENV_INDEX_TEMPLATE=/path/to/template
    201162   }}}
    202  - Windows
    203    {{{
    204 #!sh
     163 - Windows:
     164   {{{#!sh
    205165$ set TRAC_ENV_INDEX_TEMPLATE=/path/to/template
    206166   }}}
    207167
    208 == Project Templates ==
     168== Project Templates
    209169
    210 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.
     170The 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 whenever possible, see [#SiteAppearance]. 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.
    211171
    212 With 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.
     172With that word of caution, any Trac template may be copied and customized. The default Trac templates are located in the Trac egg or wheel, such as `/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 or wheel's `trac/htdocs` directory.
    213173
    214 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:
     174However, do not edit templates or site resources inside the Trac egg/wheel. Reinstalling Trac overwrites your modifications. Instead use one of these alternatives:
    215175 * For a modification to one project only, copy the template to project `templates` directory.
    216  * 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.
     176 * For a modification shared by several projects, copy the template to a shared location and have each project point to this location using the [[TracIni#inherit-templates_dir-option|[inherit] templates_dir]] option.
    217177
    218 Trac resolves requests for a template by first looking inside the project, then in any inherited templates location, and finally inside the Trac egg.
     178Trac resolves requests for a template by first looking inside the project, then in any inherited templates location, and finally inside the Trac egg or wheel.
    219179
    220 Trac caches templates in memory by default to improve performance. To apply a template you need to restart the server.
     180Trac caches templates in memory by default to improve performance. To apply a template you need to restart the web server.
    221181
    222182----
    223 See also TracGuide, TracIni
     183See also TracIni, TracNavigation