Sunday, June 1, 2008
Install Manifests
←Older revision Revision as of 02:27, 20 March 2008 Line 370: Line 370: <noinclude> <noinclude> +[[zh-cn:Install_Manifests]] [[es:Instalar el manifest]] [[es:Instalar el manifest]] [[fr:Manifestes d'installation]] [[fr:Manifestes d'installation]]
Category:Extensions
←Older revision Revision as of 02:23, 20 March 2008 Line 5: Line 5: [[Category:All Categories]] [[Category:All Categories]] +[[zh-cn:Category:Extensions]] [[ja:Category:Extensions]] [[ja:Category:Extensions]] [[pl:Kategoria:Rozszerzenia]] [[pl:Kategoria:Rozszerzenia]]
XMLHttpRequest
added mozBackgroundRequest
←Older revision Revision as of 02:05, 20 March 2008 Line 113: Line 113: req.send(null); req.send(null); dump("Content-Type: " + req.getResponseHeader("Content-Type") + "\n"); dump("Content-Type: " + req.getResponseHeader("Content-Type") + "\n"); +</pre> + +===mozBackgroundRequest=== +This property can be used to cause the request to disable authentication and bad certificate dialogs. The request is also not part of a window's loadgroup and so is not closed if the window is closed. {{fx_minversion_inline|3}} +<pre> +var req = new XMLHttpRequest(); +req.mozBackgroundRequest = true; +req.open('GET', 'http://www.mozilla.org/', true); +req.send(null); </pre> </pre>
Using XPath
getXPathForElement - +comment
←Older revision Revision as of 01:55, 20 March 2008 Line 9: Line 9: For a very simple XPath usage example, see: [[Code_snippets:HTML_to_DOM#Using_a_hidden_XUL_iframe_.28complete_example.29]] For a very simple XPath usage example, see: [[Code_snippets:HTML_to_DOM#Using_a_hidden_XUL_iframe_.28complete_example.29]] -==Wrapper function==+==Node-specific evaluator function== The following function can be used to evaluate XPath expressions on given XML nodes. The first argument is a DOM node or Document object, while the second is a string defining an XPath expression. The following function can be used to evaluate XPath expressions on given XML nodes. The first argument is a DOM node or Document object, while the second is a string defining an XPath expression. Line 44: Line 44: If you are using [[XMLHttpRequest]] to read a local or remote XML file into a DOM tree (as described in [[Parsing and serializing XML]]), the first argument to <code>evaluateXPath()</code> should be <code>req.responseXML</code>. If you are using [[XMLHttpRequest]] to read a local or remote XML file into a DOM tree (as described in [[Parsing and serializing XML]]), the first argument to <code>evaluateXPath()</code> should be <code>req.responseXML</code>. -==Sample usage==+===Sample usage=== Assume we have the following XML document (see also [[How to Create a DOM tree]] and [[Parsing and serializing XML]]): Assume we have the following XML document (see also [[How to Create a DOM tree]] and [[Parsing and serializing XML]]): Line 81: Line 81: alert(results.length); alert(results.length); </pre> </pre> + +==getXPathForElement== + +The following function allows one to pass an element and an XML document to find a unique string XPath expression leading back to that element. + +<pre>function getXPathForElement(el, xml) { + var xpath = ''; + var pos, tempitem2; + + while(el !== xml.documentElement) { + pos = 0; + tempitem2 = el; + while(tempitem2) { + if (tempitem2.nodeType === 1 && tempitem2.nodeName === el.nodeName) { // If it is ELEMENT_NODE of the same name + pos += 1; + } + tempitem2 = tempitem2.previousSibling; + } + + xpath = el.nodeName+'['+pos+']'+'/'+xpath; + el = el.parentNode; + } + xpath = '/'+xml.documentElement.nodeName+'/'+xpath; + xpath = xpath.replace(/\/$/, ''); + return xpath; +}</pre> ==Resources== ==Resources==
Code snippets:File I/O
Writing to a file
←Older revision Revision as of 00:39, 20 March 2008 Line 290: Line 290: // use 0x02 | 0x10 to open file for appending. // use 0x02 | 0x10 to open file for appending. -foStream.init(file, 0x02 | 0x08 | 0x20, 0666, 0); // write, create, truncate+foStream.init(file, 0x02 | 0x08 | 0x20, 0666, 0); -In a c file operation, we have no need to set file mode with or operation, directly using "r" or "w" usually.+// write, create, truncate +// In a c file operation, we have no need to set file mode with or operation, +// directly using "r" or "w" usually. foStream.write(data, data.length); foStream.write(data, data.length); foStream.close(); foStream.close();
Introduction to using XPath in JavaScript
small positioning fix
←Older revision Revision as of 00:11, 20 March 2008 Line 299: Line 299: {{XPathResultConstants}} {{XPathResultConstants}} + +=See also= +* [[Using XPath]] <div class="originaldocinfo"> <div class="originaldocinfo">
XPathResult
+see also, +cat
←Older revision Revision as of 00:08, 20 March 2008 Line 31: Line 31: {{XPathResultConstants}} {{XPathResultConstants}} + +==See also== + +* [[DOM:document.evaluate|document.evaluate()]] + +[[Category:XPath]]
DOM:document.evaluate
Result types - +q about merging with another template
←Older revision Revision as of 00:06, 20 March 2008 Line 36: Line 36: == Result types == == Result types == + +(Merge with [[Template:XPathResultConstants]]? + These are supported values for the <code>resultType</code> parameter of the <code>evaluate</code> method: These are supported values for the <code>resultType</code> parameter of the <code>evaluate</code> method: {| class="standard-table" {| class="standard-table" Line 103: Line 106: [[pl:DOM:document.evaluate]] [[pl:DOM:document.evaluate]] + +[[Category:XPath]]
Template:XPathResultConstants
adding page
New page
{| class="standard-table"|-
|class="header"|Result Type Defined Constant
|class="header"|Value
|class="header"|Description
|-
|-
|ANY_TYPE
|0
|A result set containing whatever type naturally results from evaluation of the expression. Note that if the result is a node-set then UNORDERED_NODE_ITERATOR_TYPE is always the resulting type.
|-
|-
|NUMBER_TYPE
|1
|A result containing a single number. This is useful for example, in an XPath expression using the <code>count()</code> function.
|-
|-
|STRING_TYPE
|2
|A result containing a single string.
|-
|-
|BOOLEAN_TYPE
|3
|A result containing a single boolean value. This is useful for example, in an XPath expression using the <code>not()</code> function.
|-
|-
|UNORDERED_NODE_ITERATOR_TYPE
|4
|A result node-set containing all the nodes matching the expression. The nodes may not necessarily be in the same order that they appear in the document.
|-
|-
|ORDERED_NODE_ITERATOR_TYPE
|5
|A result node-set containing all the nodes matching the expression. The nodes in the result set are in the same order that they appear in the document.
|-
|-
|UNORDERED_NODE_SNAPSHOT_TYPE
|6
|A result node-set containing snapshots of all the nodes matching the expression. The nodes may not necessarily be in the same order that they appear in the document.
|-
|-
|ORDERED_NODE_SNAPSHOT_TYPE
|7
|A result node-set containing snapshots of all the nodes matching the expression. The nodes in the result set are in the same order that they appear in the document.
|-
|-
|ANY_UNORDERED_NODE_TYPE
|8
|A result node-set containing any single node that matches the expression. The node is not necessarily the first node in the document that matches the expression.
|-
|-
|FIRST_ORDERED_NODE_TYPE
|9
|A result node-set containing the first node in the document that matches the expression.
|-
|}
Code snippets:Miscellaneous
Operating system detection
←Older revision Revision as of 20:51, 19 March 2008 Line 16: Line 16: ==Operating system detection== ==Operating system detection== - // Returns WINNT on Windows XP, 2000, NT and returns Linux on GNU/Linux+ // Returns "WINNT" on Windows Vista, XP, 2000, and NT systems + // and returns "Linux" on GNU/Linux var osString = Components.classes["@mozilla.org/xre/app-info;1"] var osString = Components.classes["@mozilla.org/xre/app-info;1"] .getService(Components.interfaces.nsIXULRuntime).OS; .getService(Components.interfaces.nsIXULRuntime).OS;
nsIUpdateTimerManager
new
New page
<breadcrumbs></breadcrumbs>The <code>nsIUpdateTimerManager</code> interface provides a global application service that provides support for long-duration timers (on the order of many days, weeks, or even months). These timers are used to schedule update checks in the future, for example.
__TOC__
{{InterfaceStatus|nsIUpdateTimerManager|toolkit/mozapps/update/public/nsIUpdateService.idl|unfrozen|Mozilla 1.9|yes}}
Inherits from: {{interface|nsISupports}}
=Method overview=
{| class="standard-table"
|-
| <code>void [[#registerTimer()|registerTimer]](in AString id,
in nsITimerCallback callback,
in unsigned long interval);</code>
|-
|}
=Methods=
==registerTimer()==
Presents a user interface that checks for and displays the available updates.
void registerTimer(
in AString id,
in nsITimerCallback callback,
in unsigned long interval
);
<h5>Parameters</h5>
;<tt>id</tt>
:An ID used to identify the timer interval; used for persistence.
;<tt>callback</tt>
:An {{interface|nsITimerCallback}} object that is notified when the interval expires.
;<tt>interval</tt>
:The length of time, in seconds, until the timer should fire.
None.
=See also=
* {{interface|nsIUpdate}}
* {{interface|nsIUpdateCheckListener}}
* {{interface|nsIUpdateChecker}}
* {{interface|nsIUpdatePatch}}
* {{interface|nsIApplicationUpdateService}}
* {{interface|nsIUpdateManager}}
* {{interface|nsIUpdatePrompt}}
[[Category:Interfaces]]
nsIUpdatePrompt
new
New page
<breadcrumbs></breadcrumbs>The <code>nsIUpdatePrompt</code> interface describes an object that can be used to show various update-related notifications to the user.
__TOC__
{{InterfaceStatus|nsIUpdatePrompt|toolkit/mozapps/update/public/nsIUpdateService.idl|unfrozen|Mozilla 1.9|yes}}
Inherits from: {{interface|nsISupports}}
=Method overview=
{| class="standard-table"
|-
| <code>void [[#checkForUpdates()|checkForUpdates]]();</code>
|-
| <code>void [[#showUpdateAvailable()|showUpdateAvailable]](in [[nsIUpdate]] update);</code>
|-
| <code>void [[#showUpdateDownloaded()|showUpdateDownloaded]](in [[nsIUpdate]] update, [optional] in boolean background);</code>
|-
| <code>void [[#showUpdateError()|showUpdateError]](in [[nsIUpdate]] update);</code>
|-
| <code>void [[#showUpdateHistory()|showUpdateHistory]](in [[nsIDOMWindow]] parent);</code>
|-
| <code>void [[#showUpdateInstalled()|showUpdateInstalled]](in [[nsIUpdate]] update);</code>
|-
|}
=Methods=
==checkForUpdates()==
Presents a user interface that checks for and displays the available updates.
void checkForUpdates();
<h5>Parameters</h5>
None.
==showUpdateAvailable()==
Shows a message advising the user that an update is available to be downloaded and installed.
void showUpdateAvailable(
in nsIUpdate update
);
<h5>Parameters</h5>
;<tt>update</tt>
:An {{interface|nsIUpdate}} describing the update that's available.
==showUpdateDownloaded()==
Shows a message advising the user that an update has been downloaded, and that the user should restart the application in order to install it.
void showUpdateDownloaded(
in nsIUpdate update,
[optional] in boolean background
);
<h5>Parameters</h5>
;<tt>update</tt>
:An {{interface|nsIUpdate}} describing the update that was downloaded.
;<tt>background</tt>
:An optional parameter that, if provided and <code>true</code>, presents a less-obtrusive, non-modal notification alert.
==showUpdateError()==
Displays an error message telling the user about an update failure, such as a failure to successfully apply a patch.
void showUpdateError(
in nsIUpdate update
);
<h5>Parameters</h5>
;<tt>update</tt>
:An {{interface|nsIUpdate}} describing the update that failed to install.
==showUpdateHistory()==
Shows a list of all updates that have been installed to date.
void showUpdateHistory(
in nsIDOMWindow parent
);
<h5>Parameters</h5>
;<tt>parent</tt>
:An {{interface|nsIDOMWindow}} indicating the parent window to which to anchor the update list window. This can be <code>null</code>.
==showUpdateInstalled()==
Shows a message detailing the update that was just installed.
void showUpdateInstalled(
in nsIUpdate update
);
<h5>Parameters</h5>
;<tt>update</tt>
:An {{interface|nsIUpdate}} describing the update that was installed.
=See also=
* {{interface|nsIUpdate}}
* {{interface|nsIUpdateCheckListener}}
* {{interface|nsIUpdateChecker}}
* {{interface|nsIUpdatePatch}}
* {{interface|nsIApplicationUpdateService}}
* {{interface|nsIUpdateManager}}
* {{interface|nsIUpdateTimerManager}}
[[Category:Interfaces]]
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