mirror of
https://github.com/netsurf-browser/netsurf
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242 lines
16 KiB
Markdown
242 lines
16 KiB
Markdown
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Common NetSurf user options 4nd December 2014
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This document outlines the common configuration options supported by the
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NetSurf core.
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Overview
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========
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The users configurations are generally stored in a "Choices" file
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and are loaded at browser startup. Most user interfaces provide a
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way to configure these parameters in a manner consistant with the
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toolkit in use.
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The user choices are stored as a simple key:value list.
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Each entry has a type, one of: boolean, integer, unsigned integer,
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hexadecimal colour value or string.
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General Options
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===============
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+----------------------+--------+-----------+----------------------------------+
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| Option Key | Type | Default | Description |
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+----------------------+--------+-----------+----------------------------------+
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| http_proxy | bool | false | An HTTP proxy should be used. |
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| http_proxy | bool | false | An HTTP proxy should be used. |
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| http_proxy_host | string | NULL | Hostname of proxy. |
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| http_proxy_port | int | 8080 | Proxy port. |
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| http_proxy_auth | int | 0 | Proxy authentication method. |
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| http_proxy_auth_user | string | NULL | Proxy authentication user name |
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| http_proxy_auth_pass | string | NULL | Proxy authentication password |
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| http_proxy_noproxy | string | localhost | Proxy omission list |
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| font_size | int | 128 | Default font size / 0.1pt. |
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| font_min_size | int | 85 | Minimum font size. |
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| font_sans | string | NULL | Default sans serif font |
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| font_serif | string | NULL | Default serif font |
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| font_mono | string | NULL | Default monospace font
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| font_cursive | string | NULL | Default cursive font
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| font_fantasy | string | NULL | Default fantasy font
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| accept_language | string | NULL | Accept-Language header.
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| accept_charset | string | NULL | Accept-Charset header.
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| memory_cache_size | int | 12MiB | Preferred maximum size of memory |
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| | | | cache in bytes. |
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| disc_cache_size | uint | 1GiB | Preferred expiry size of disc |
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| | | | cache in bytes. |
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| disc_cache_age | int | 28 | Preferred expiry age of disc |
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| | | | cache in days. |
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| block_advertisements | bool | false | Whether to block advertisements
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| do_not_track | bool | false | Disable website tracking [1]
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| minimum_gif_delay | int | 10 | Minimum GIF animation delay
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| send_referer | bool | true | Whether to send the referer HTTP |
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| foreground_images | bool | true | Whether to fetch foreground images
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| background_images | bool | true | Whether to fetch background images
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| animate_images | bool | true | Whether to animate images
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| enable_javascript | bool | false | Whether to execute javascript
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| script_timeout | int | 10 | Maximum time to wait for a script|
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| | | | to run in seconds |
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| expire_url | int | 28 | How many days to retain URL data |
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| | | | for. |
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| font_default | int | 0 | Default font family
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| ca_bundle | string | NULL | ca-bundle location
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| ca_path | string | NULL | ca-path location
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| cookie_file | string | NULL | Cookie file location
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| cookie_jar | string | NULL | Cookie jar location
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| homepage_url | string | NULL | Home page location
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| search_url_bar | bool | false | search web from url bar
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| search_provider | int | 0 | default web search provider
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| url_suggestion | bool | true | URL completion in url bar
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| window_x | int | 0 | default x position of new windows
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| window_y | int | 0 | default y position of new windows
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| window_width | int | 0 | default width of new windows
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| window_height | int | 0 | default height of new windows
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| window_screen_width | int | 0 | width of screen when above |
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| | | | options were saved |
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| window_screen_height | int | 0 | height of screen when above |
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| | | | options were saved |
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| toolbar_status_size | int | 6667 | default size of status bar vs. |
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| | | | h scroll bar |
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| scale | int | 100 | default window scale
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| incremental_reflow | bool | true | Whether to reflow web pages while|
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| | | | objects are fetching |
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| min_reflow_period | uint | 25 | Minimum time (in cs) between HTML|
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| | | | reflows while objects are fetching
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| core_select_menu | bool | false | Use core selection menu |
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+----------------------+--------+-----------+----------------------------------+
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[1] http://www.w3.org/Submission/2011/SUBM-web-tracking-protection-20110224/#dnt-uas
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Fetcher options
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===============
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+--------------------------+------+------+-------------------------------------+
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| Option Key | Type | Dflt | Description |
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+--------------------------+------+------+-------------------------------------+
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| max_fetchers | int | 24 | Maximum simultaneous active fetchers|
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| max_fetchers_per_host | int | 5 | Maximum simultaneous active fetchers|
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| | | | per host. (<=option_max_fetchers |
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| | | | else it makes no sense) [2] |
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| max_cached_fetch_handles | int | 6 | Maximum number of inactive fetchers |
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| | | | cached. The total number of handles|
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| | | | netsurf will therefore have open is|
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| | | | this plus option_max_fetchers. |
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| suppress_curl_debug | bool | true | Suppress debug output from cURL. |
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| target_blank | bool | true | Whether to allow target="_blank" |
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| button_2_tab | bool | true | Whether second mouse button opens in|
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| | | | new tab. |
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+--------------------------+------+------+-------------------------------------+
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[2] Note that rfc2616 section 8.1.4 says that there should be no more
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than two keepalive connections per host. None of the main browsers
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follow this as it slows page fetches down considerably.
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See https://bugzilla.mozilla.org/show_bug.cgi?id=423377#c4
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PDF / Print options
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===================
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+------------------------+------+-------+--------------------------------------+
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| Option Key | Type | Deflt | Description |
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+------------------------+------+-------+--------------------------------------+
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| margin_top | int | 10 | top margin of exported page |
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| margin_bottom | int | 10 | bottom margin of exported page |
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| margin_left | int | 10 | left margin of exported page |
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| margin_right | int | 10 | right margin of exported page |
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| export_scale | int | 70 | scale of exported content |
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| suppress_images | bool | false | suppressing images in printed content|
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| remove_backgrounds | bool | false | turning off all backgrounds for |
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| enable_loosening | bool | true | turning on content loosening for |
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| enable_PDF_compression | bool | true | compression of PDF documents |
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| enable_PDF_password | bool | false | setting a password and encoding PDF |
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+------------------------+------+-------+--------------------------------------+
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System colours
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==============
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These are the css system colours which the browser also uses to style
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generated output.
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+--------------------------------+--------+------------+
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| Option Key | Type | Default |
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+--------------------------------+--------+------------+
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| sys_colour_ActiveBorder | colour | 0x00d3d3d3 |
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| sys_colour_ActiveCaption | colour | 0x00f1f1f1 |
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| sys_colour_AppWorkspace | colour | 0x00f1f1f1 |
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| sys_colour_Background | colour | 0x006e6e6e |
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| sys_colour_ButtonFace | colour | 0x00f9f9f9 |
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| sys_colour_ButtonHighlight | colour | 0x00ffffff |
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| sys_colour_ButtonShadow | colour | 0x00aeaeae |
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| sys_colour_ButtonText | colour | 0x004c4c4c |
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| sys_colour_CaptionText | colour | 0x004c4c4c |
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| sys_colour_GrayText | colour | 0x00505050 |
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| sys_colour_Highlight | colour | 0x00c00800 |
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| sys_colour_HighlightText | colour | 0x00ffffff |
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| sys_colour_InactiveBorder | colour | 0x00f1f1f1 |
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| sys_colour_InactiveCaption | colour | 0x00e6e6e6 |
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| sys_colour_InactiveCaptionText | colour | 0x00a6a6a6 |
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| sys_colour_InfoBackground | colour | 0x008fdfef |
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| sys_colour_InfoText | colour | 0x00000000 |
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| sys_colour_Menu | colour | 0x00f1f1f1 |
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| sys_colour_MenuText | colour | 0x004e4e4e |
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| sys_colour_Scrollbar | colour | 0x00cccccc |
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| sys_colour_ThreeDDarkShadow | colour | 0x00aeaeae |
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| sys_colour_ThreeDFace | colour | 0x00f9f9f9 |
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| sys_colour_ThreeDHighlight | colour | 0x00ffffff |
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| sys_colour_ThreeDLightShadow | colour | 0x00ffffff |
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| sys_colour_ThreeDShadow | colour | 0x00d5d5d5 |
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| sys_colour_Window | colour | 0x00f1f1f1 |
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| sys_colour_WindowFrame | colour | 0x004e4e4e |
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| sys_colour_WindowText | colour | 0x00000000 |
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+--------------------------------+--------+------------+
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