Greasemonkey Manual:API: Difference between revisions
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They will be listed here, with a brief description, but each separate method has its own page with more in-depth information, please continue reading there! | They will be listed here, with a brief description, but each separate method has its own page with more in-depth information, please continue reading there! | ||
=== Values === | |||
; [[GM_getValue]] : A function intended to get stored values, see [[GM_setValue]] below. | ; [[GM_getValue]] : A function intended to get stored values, see [[GM_setValue]] below. | ||
; [[GM_setValue]] : A function that accepts the name and value to store, persistently. This value can be retrieved later, even on a different invocation of the script, with [[GM_getValue]]. | ; [[GM_setValue]] : A function that accepts the name and value to store, persistently. This value can be retrieved later, even on a different invocation of the script, with [[GM_getValue]]. | ||
; [[GM_deleteValue]] : This deletes a value from chrome that was previously set. | |||
; [[GM_listValues]] : This API method retrieves an array of preference names that start with the branches root. | |||
=== Resources === | |||
; [[GM_getResourceURL]] : A function that loads an external resource via a URL, such as an image, and returns the string containing the base64 encoded in the data: URL scheme. | |||
; [[GM_getResourceText]] : Like the previous, loads text from a resource. | |||
=== Programmatic === | |||
; [[GM_log]] : A function that accepts a parameter which will be routed to the Error Console, useful for examining values when writing a script. | ; [[GM_log]] : A function that accepts a parameter which will be routed to the Error Console, useful for examining values when writing a script. | ||
=== Common Task Helpers === | |||
; [[unsafeWindow]] : This object provides access to the raw javascript <code>window</code> scope of the content page. It is most commonly used to access JavaScript variables on the page. | |||
; [[GM_addStyle]] : A function, taking one parameter, a string of CSS to apply to the page. | |||
; [[GM_xmlhttpRequest]] : A version of the xmlHttpRequest method underlying AJAX, this API call does '''not''' use the same-origin policy that a script running in a normal page is limited with, allowing complex mashups. | |||
=== Other === | |||
; [[GM_registerMenuCommand]] : An advanced function which allows a user script to register a menu item, and command to run when clicked, in the Firefox user interface. | |||
; [[GM_openInTab]] : Similar in spirit to <code>window.open()</code>, this function accepts a single parameter, the URL of a page to open in a new tab. | ; [[GM_openInTab]] : Similar in spirit to <code>window.open()</code>, this function accepts a single parameter, the URL of a page to open in a new tab. | ||
== Notes == | == Notes == | ||
Revision as of 19:15, 30 December 2008
 Greasemonkey Manual |
| Using Greasemonkey |
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| Monkey Menu |
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| Environment |
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What is an API?
An API, or application programming interface, provides a framework, or set of commonly used functions or methods in a program, or in this case, Greasemonkey.
The API Methods
This section of the manual will be short and sweet. As mentioned elsewhere, Greasemonkey provides several methods in it's API to enhance the power of user scripts. They will be listed here, with a brief description, but each separate method has its own page with more in-depth information, please continue reading there!
Values
- GM_getValue
- A function intended to get stored values, see GM_setValue below.
- GM_setValue
- A function that accepts the name and value to store, persistently. This value can be retrieved later, even on a different invocation of the script, with GM_getValue.
- GM_deleteValue
- This deletes a value from chrome that was previously set.
- GM_listValues
- This API method retrieves an array of preference names that start with the branches root.
Resources
- GM_getResourceURL
- A function that loads an external resource via a URL, such as an image, and returns the string containing the base64 encoded in the data: URL scheme.
- GM_getResourceText
- Like the previous, loads text from a resource.
Programmatic
- GM_log
- A function that accepts a parameter which will be routed to the Error Console, useful for examining values when writing a script.
Common Task Helpers
- unsafeWindow
- This object provides access to the raw javascript
windowscope of the content page. It is most commonly used to access JavaScript variables on the page. - GM_addStyle
- A function, taking one parameter, a string of CSS to apply to the page.
- GM_xmlhttpRequest
- A version of the xmlHttpRequest method underlying AJAX, this API call does not use the same-origin policy that a script running in a normal page is limited with, allowing complex mashups.
Other
- GM_registerMenuCommand
- An advanced function which allows a user script to register a menu item, and command to run when clicked, in the Firefox user interface.
- GM_openInTab
- Similar in spirit to
window.open(), this function accepts a single parameter, the URL of a page to open in a new tab.
Notes
All GM_* functions were blocked in version 0.3.5, due to security vulnerabilities. These functions were restored with updates making them secure, and the new unsafeWindow object was added, in version 0.5.
