Improved documentation formatting (of Plugins.md)
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Andrej Stieben
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acefb84681
2 changed files with 92 additions and 84 deletions
101
doc/Plugins.md
101
doc/Plugins.md
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@ -1,5 +1,7 @@
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Friendica Addon/Plugin development
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==========================
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==============
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* [Home](help)
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Please see the sample addon 'randplace' for a working example of using some of these features.
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Addons work by intercepting event hooks - which must be registered.
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@ -16,12 +18,12 @@ Future extensions may provide for "setup" amd "remove".
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Plugins should contain a comment block with the four following parameters:
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/*
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* Name: My Great Plugin
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* Description: This is what my plugin does. It's really cool
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* Version: 1.0
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* Author: John Q. Public <john@myfriendicasite.com>
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*/
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/*
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* Name: My Great Plugin
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* Description: This is what my plugin does. It's really cool.
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* Version: 1.0
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* Author: John Q. Public <john@myfriendicasite.com>
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*/
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Register your plugin hooks during installation.
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@ -45,7 +47,7 @@ Your hook callback functions will be called with at least one and possibly two a
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If you wish to make changes to the calling data, you must declare them as reference variables (with '&') during function declaration.
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###$a
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#### $a
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$a is the Friendica 'App' class.
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It contains a wealth of information about the current state of Friendica:
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@ -56,13 +58,13 @@ It contains a wealth of information about the current state of Friendica:
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It is recommeded you call this '$a' to match its usage elsewhere.
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###$b
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#### $b
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$b can be called anything you like.
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This is information specific to the hook currently being processed, and generally contains information that is being immediately processed or acted on that you can use, display, or alter.
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Remember to declare it with '&' if you wish to alter it.
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Modules
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--------
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---
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Plugins/addons may also act as "modules" and intercept all page requests for a given URL path.
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In order for a plugin to act as a module it needs to define a function "plugin_name_module()" which takes no arguments and needs not do anything.
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@ -72,15 +74,15 @@ These are parsed into an array $a->argv, with a corresponding $a->argc indicatin
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So http://my.web.site/plugin/arg1/arg2 would look for a module named "plugin" and pass its module functions the $a App structure (which is available to many components).
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This will include:
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$a->argc = 3
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$a->argv = array(0 => 'plugin', 1 => 'arg1', 2 => 'arg2');
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$a->argc = 3
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$a->argv = array(0 => 'plugin', 1 => 'arg1', 2 => 'arg2');
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Your module functions will often contain the function plugin_name_content(&$a), which defines and returns the page body content.
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They may also contain plugin_name_post(&$a) which is called before the _content function and typically handles the results of POST forms.
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You may also have plugin_name_init(&$a) which is called very early on and often does module initialisation.
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Templates
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----------
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---
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If your plugin needs some template, you can use the Friendica template system.
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Friendica uses [smarty3](http://www.smarty.net/) as a template engine.
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@ -104,140 +106,140 @@ See also the wiki page [Quick Template Guide](https://github.com/friendica/frien
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Current hooks
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-------------
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###'authenticate'
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### 'authenticate'
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'authenticate' is called when a user attempts to login.
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$b is an array containing:
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'username' => the supplied username
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'password' => the supplied password
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'username' => the supplied username
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'password' => the supplied password
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'authenticated' => set this to non-zero to authenticate the user.
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'user_record' => successful authentication must also return a valid user record from the database
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###'logged_in'
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### 'logged_in'
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'logged_in' is called after a user has successfully logged in.
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$b contains the $a->user array.
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###'display_item'
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### 'display_item'
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'display_item' is called when formatting a post for display.
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$b is an array:
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'item' => The item (array) details pulled from the database
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'output' => the (string) HTML representation of this item prior to adding it to the page
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###'post_local'
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### 'post_local'
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* called when a status post or comment is entered on the local system
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* $b is the item array of the information to be stored in the database
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* Please note: body contents are bbcode - not HTML
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###'post_local_end'
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### 'post_local_end'
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* called when a local status post or comment has been stored on the local system
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* $b is the item array of the information which has just been stored in the database
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* Please note: body contents are bbcode - not HTML
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###'post_remote'
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### 'post_remote'
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* called when receiving a post from another source. This may also be used to post local activity or system generated messages.
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* $b is the item array of information to be stored in the database and the item body is bbcode.
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###'settings_form'
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### 'settings_form'
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* called when generating the HTML for the user Settings page
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* $b is the (string) HTML of the settings page before the final '</form>' tag.
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###'settings_post'
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### 'settings_post'
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* called when the Settings pages are submitted
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* $b is the $_POST array
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###'plugin_settings'
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### 'plugin_settings'
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* called when generating the HTML for the addon settings page
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* $b is the (string) HTML of the addon settings page before the final '</form>' tag.
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###'plugin_settings_post'
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### 'plugin_settings_post'
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* called when the Addon Settings pages are submitted
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* $b is the $_POST array
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###'profile_post'
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### 'profile_post'
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* called when posting a profile page
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* $b is the $_POST array
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###'profile_edit'
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### 'profile_edit'
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'profile_edit' is called prior to output of profile edit page.
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$b is an array containing:
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'profile' => profile (array) record from the database
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'entry' => the (string) HTML of the generated entry
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###'profile_advanced'
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### 'profile_advanced'
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* called when the HTML is generated for the 'Advanced profile', corresponding to the 'Profile' tab within a person's profile page
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* $b is the (string) HTML representation of the generated profile
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* The profile array details are in $a->profile.
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###'directory_item'
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### 'directory_item'
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'directory_item' is called from the Directory page when formatting an item for display.
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$b is an array:
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'contact' => contact (array) record for the person from the database
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'entry' => the (string) HTML of the generated entry
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###'profile_sidebar_enter'
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### 'profile_sidebar_enter'
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* called prior to generating the sidebar "short" profile for a page
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* $b is the person's profile array
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###'profile_sidebar'
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### 'profile_sidebar'
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'profile_sidebar is called when generating the sidebar "short" profile for a page.
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$b is an array:
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'profile' => profile (array) record for the person from the database
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'entry' => the (string) HTML of the generated entry
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###'contact_block_end'
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### 'contact_block_end'
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is called when formatting the block of contacts/friends on a profile sidebar has completed.
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$b is an array:
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'contacts' => array of contacts
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'output' => the (string) generated HTML of the contact block
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###'bbcode'
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### 'bbcode'
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* called during conversion of bbcode to html
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* $b is a string converted text
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###'html2bbcode'
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### 'html2bbcode'
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* called during conversion of html to bbcode (e.g. remote message posting)
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* $b is a string converted text
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###'page_header'
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### 'page_header'
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* called after building the page navigation section
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* $b is a string HTML of nav region
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###'personal_xrd'
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### 'personal_xrd'
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'personal_xrd' is called prior to output of personal XRD file.
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$b is an array:
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'user' => the user record for the person
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'xml' => the complete XML to be output
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###'home_content'
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### 'home_content'
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* called prior to output home page content, shown to unlogged users
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* $b is (string) HTML of section region
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###'contact_edit'
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### 'contact_edit'
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is called when editing contact details on an individual from the Contacts page.
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$b is an array:
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'contact' => contact record (array) of target contact
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'output' => the (string) generated HTML of the contact edit page
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###'contact_edit_post'
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### 'contact_edit_post'
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* called when posting the contact edit page.
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* $b is the $_POST array
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###'init_1'
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### 'init_1'
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* called just after DB has been opened and before session start
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* $b is not used or passed
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###'page_end'
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### 'page_end'
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* called after HTML content functions have completed
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* $b is (string) HTML of content div
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###'avatar_lookup'
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### 'avatar_lookup'
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'avatar_lookup' is called when looking up the avatar.
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$b is an array:
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@ -245,11 +247,11 @@ $b is an array:
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'email' => email to look up the avatar for
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'url' => the (string) generated URL of the avatar
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###'emailer_send_prepare'
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### 'emailer_send_prepare'
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'emailer_send_prepare' called from Emailer::send() before building the mime message.
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$b is an array, params to Emailer::send()
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'fromName' => name of the sender
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'fromName' => name of the sender
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'fromEmail' => email fo the sender
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'replyTo' => replyTo address to direct responses
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'toEmail' => destination email address
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@ -258,20 +260,20 @@ $b is an array, params to Emailer::send()
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'textVersion' => text only version of the message
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'additionalMailHeader' => additions to the smtp mail header
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###'emailer_send'
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### 'emailer_send'
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is called before calling PHP's mail().
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$b is an array, params to mail()
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'to'
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'subject'
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'to'
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'subject'
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'body'
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'headers'
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###'nav_info'
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### 'nav_info'
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is called after the navigational menu is build in include/nav.php.
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$b is an array containing $nav from nav.php.
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###'template_vars'
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### 'template_vars'
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is called before vars are passed to the template engine to render the page.
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The registered function can add,change or remove variables passed to template.
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$b is an array with:
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@ -463,4 +465,3 @@ mod/cb.php: call_hooks('cb_afterpost');
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mod/cb.php: call_hooks('cb_content', $o);
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mod/directory.php: call_hooks('directory_item', $arr);
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@ -1,4 +1,4 @@
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**Friendica Addon/Plugin-Entwicklung**
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Friendica Addon/Plugin-Entwicklung
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==============
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* [Zur Startseite der Hilfe](help)
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@ -16,12 +16,12 @@ Zukünftige Extensions werden möglicherweise "Setup" und "Entfernen" anbieten.
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Plugins sollten einen Kommentarblock mit den folgenden vier Parametern enthalten:
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/*
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* Name: My Great Plugin
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* Description: This is what my plugin does. It's really cool
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* Version: 1.0
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* Author: John Q. Public <john@myfriendicasite.com>
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*/
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/*
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* Name: My Great Plugin
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* Description: This is what my plugin does. It's really cool
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* Version: 1.0
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* Author: John Q. Public <john@myfriendicasite.com>
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*/
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Registriere deine Plugin-Hooks während der Installation.
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@ -34,6 +34,9 @@ Das *sollte* "addon/plugin_name/plugin_name.php' sein.
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$function ist ein String und der Name der Funktion, die ausgeführt wird, wenn der Hook aufgerufen wird.
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Argumente
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---
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Deine Hook-Callback-Funktion wird mit mindestens einem und bis zu zwei Argumenten aufgerufen
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function myhook_function(&$a, &$b) {
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@ -50,7 +53,8 @@ Diese Information ist speziell auf den Hook bezogen, der aktuell bearbeitet wird
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Achte darauf, diese mit "&" zu deklarieren, wenn du sie bearbeiten willst.
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**Module**
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Module
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---
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Plugins/Addons können auch als "Module" agieren und alle Seitenanfragen für eine bestimte URL abfangen.
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Um ein Plugin als Modul zu nutzen, ist es nötig, die Funktion "plugin_name_module()" zu definieren, die keine Argumente benötigt und nichts weiter machen muss.
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@ -59,15 +63,16 @@ Wenn diese Funktion existiert, wirst du nun alle Seitenanfragen für "http://my.
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Diese werden in ein Array $a->argv geparst und stimmen mit $a->argc überein, wobei sie die Anzahl der URL-Komponenten abbilden.
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So würde http://my.web.site/plugin/arg1/arg2 nach einem Modul "plugin" suchen und seiner Modulfunktion die $a-App-Strukur übergeben (dies ist für viele Komponenten verfügbar). Das umfasst:
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$a->argc = 3
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$a->argv = array(0 => 'plugin', 1 => 'arg1', 2 => 'arg2');
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$a->argc = 3
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$a->argv = array(0 => 'plugin', 1 => 'arg1', 2 => 'arg2');
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Deine Modulfunktionen umfassen oft die Funktion plugin_name_content(&$a), welche den Seiteninhalt definiert und zurückgibt.
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Sie können auch plugin_name_post(&$a) umfassen, welches vor der content-Funktion aufgerufen wird und normalerweise die Resultate der POST-Formulare handhabt.
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Du kannst ebenso plugin_name_init(&$a) nutzen, was oft frühzeitig aufgerufen wird und das Modul initialisert.
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**Derzeitige Hooks:**
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Derzeitige Hooks
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---
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**'authenticate'** - wird aufgerufen, wenn sich der User einloggt.
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$b ist ein Array
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@ -180,6 +185,9 @@ Du kannst ebenso plugin_name_init(&$a) nutzen, was oft frühzeitig aufgerufen wi
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- wird aufgerufen nachdem in include/nav,php der Inhalt des Navigations Menüs erzeugt wurde.
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- $b ist ein Array, das $nav wiederspiegelt.
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Komplette Liste der Hook-Callbacks
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---
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Eine komplette Liste aller Hook-Callbacks mit den zugehörigen Dateien (am 14-Feb-2012 generiert): Bitte schau in die Quellcodes für Details zu Hooks, die oben nicht dokumentiert sind.
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boot.php: call_hooks('login_hook',$o);
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@ -359,4 +367,3 @@ mod/cb.php: call_hooks('cb_afterpost');
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mod/cb.php: call_hooks('cb_content', $o);
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mod/directory.php: call_hooks('directory_item', $arr);
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