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Issue 9784014: Static documentation for Font Settings Extension API. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: jungshik's comments Created 8 years, 8 months ago
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1 <!-- BEGIN AUTHORED CONTENT -->
2
3 <p>The Font Settings API allows you to manage Chrome's font settings.</p>
4
5 <h2 id="manifest">Manifest</h2>
6 <p>The Font Settings API is currently experimental, so you must declare the
7 "experimental" permission to use it. For example:</p>
8 <pre>{
9 "name": "My Font Settings Extension",
10 "description": "Customize your fonts",
11 "version": "0.2",
12 "permissions": ["experimental"]
13 }</pre>
14
15 <h2 id="scripts">Generic Font Families and Scripts</h2>
16 <p>Chrome allows for some font settings to depend on certain generic font
17 families and language scripts. For example, the font used for sans-serif
18 Simplified Chinese may be different than the font used for serif Japanese.</p>
19
20 <p>The generic font families supported by Chrome are based on
21 <a href="http://www.w3.org/TR/CSS21/fonts.html#generic-font-families">CSS generi c font families</a>
22 and are listed in the API reference below. When a webpage specifies a generic
23 font family, Chrome selects the font based on the corresponding setting. If no
24 generic font family is specified, Chrome uses the setting for the "standard"
25 generic font family.</p>
26
27 <p>When a webpage specifies a language, Chrome selects the font based on the
28 setting for the corresponding language script. If no language is specified,
29 Chrome uses the setting for the default, or global, script.</p>
30
31 <p>The supported language scripts are based on ISO 15924 script codes and listed
32 in the API reference below. Technically, Chrome settings are not strictly
33 per-script but also depend on language. For example, Chrome chooses the font for
34 Hangul (ISO 15924 script code "Hang") when a webpage specifies Korean language,
35 and uses this font not just for Hangul script but for everything the font
36 covers, such as Hanja.</p>
37
38 <p>Although ISO 15924 provides script codes like "Japn" for Japanese and "Kore"
39 for Korean, these codes are newer than "Hrkt" and "Hang" which Chrome continues
40 to use for compatibility purposes.</p>
41
42 <h2 id="examples">Examples</h2>
43 <p>The following code gets the standard font for Arabic.</p>
44 <pre>
45 chrome.experimental.fontSettings.getFontName(
46 { genericFamily: 'standard', script: 'Arab' },
47 function(details) { console.log(details.fontName); }
48 );
49 </pre>
50
51 <p>The next snippet sets the sans-serif font for Japanese.</p>
52 <pre>
53 chrome.experimental.fontSettings.setFontName(
54 { genericFamily: 'sansserif', script: 'Hrkt', fontName: 'IPAPGothic' }
55 );
56 </pre>
57
58 <p>You can find a sample extension using the Font Settings API in the
59 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extension s/docs/examples/api/fontSettings/">examples/api/fontSettings</a>
60 directory. For other examples and for help in viewing the source code, see
61 <a href="samples.html">Samples</a>.</p>
62
63 <!-- END AUTHORED CONTENT -->
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