From 218934fa2ed1c702a6d3923d2aa2cc6b43c48684 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:43:23 -0500 Subject: initial commit --- files/zh-tw/web/api/cssstylesheet/index.html | 187 ++++++++++++++++++ .../web/api/cssstylesheet/insertrule/index.html | 219 +++++++++++++++++++++ 2 files changed, 406 insertions(+) create mode 100644 files/zh-tw/web/api/cssstylesheet/index.html create mode 100644 files/zh-tw/web/api/cssstylesheet/insertrule/index.html (limited to 'files/zh-tw/web/api/cssstylesheet') diff --git a/files/zh-tw/web/api/cssstylesheet/index.html b/files/zh-tw/web/api/cssstylesheet/index.html new file mode 100644 index 0000000000..01abf1a942 --- /dev/null +++ b/files/zh-tw/web/api/cssstylesheet/index.html @@ -0,0 +1,187 @@ +--- +title: CSSStyleSheet +slug: Web/API/CSSStyleSheet +tags: + - API + - CSSOM + - NeedsTranslation + - Reference + - TopicStub +translation_of: Web/API/CSSStyleSheet +--- +
{{APIRef("CSSOM")}}
+ +

The CSSStyleSheet interface represents a single CSS style sheet. It inherits properties and methods from its parent, {{domxref("StyleSheet")}}.

+ +

A style sheet consists of {{domxref("CSSRule", "rules", "", 1)}}, such as {{domxref("CSSStyleRule", "style rules", "", 1)}} ("h1,h2 { font-size: 16pt }"), various at-rules (@import, @media, ...), etc. This interface lets you inspect and modify the list of rules in the stylesheet.

+ +

See the {{anch("Notes")}} section for the various ways a CSSStyleSheet object can be obtained.

+ +

Properties

+ +

Inherits properties from its parent, {{domxref("StyleSheet")}}.

+ +
+
{{domxref("CSSStyleSheet.cssRules")}}
+
Returns a live {{domxref("CSSRuleList")}}, listing the {{domxref("CSSRule")}} objects in the style sheet.
+ This is normally used to access individual rules like this:
+    styleSheet.cssRules[i] // where i = 0..cssRules.length-1
+ To add or remove items in cssRules, use the CSSStyleSheet's deleteRule() and insertRule() methods, described below.
+
{{domxref("CSSStyleSheet.ownerRule")}}
+
If this style sheet is imported into the document using an {{cssxref("@import")}} rule, the ownerRule property will return that {{domxref("CSSImportRule")}}, otherwise it returns null.
+
+ +

Methods

+ +

Inherits methods from its parent, {{domxref("Stylesheet")}}.

+ +
+
{{domxref("CSSStyleSheet.deleteRule()")}}
+
Deletes a rule at the specified position from the style sheet.
+
{{domxref("CSSStyleSheet.insertRule()")}}
+
Inserts a new rule at the specified position in the style sheet, given the textual representation of the rule.
+
+ +

Notes

+ +

In some browsers, if a stylesheet is loaded from a different domain, calling cssRules results in SecurityError.

+ +

A stylesheet is associated with at most one {{domxref("Document")}}, which it applies to (unless {{domxref("StyleSheet.disabled", "disabled", "", 1)}}). A list of CSSStyleSheet objects for a given document can be obtained using the {{domxref("document.styleSheets")}} property. A specific style sheet can also be accessed from its owner object (Node or CSSImportRule), if any.

+ +

A CSSStyleSheet object is created and inserted into the document's styleSheets list automatically by the browser, when a style sheet is loaded for a document. As the {{domxref("document.styleSheets")}} list cannot be modified directly, there's no useful way to create a new CSSStyleSheet object manually (although Constructable Stylesheet Objects might get added to the Web APIs at some point). To create a new stylesheet, insert a {{HTMLElement("style")}} or {{HTMLElement("link")}} element into the document.

+ +

A (possibly incomplete) list of ways a style sheet can be associated with a document follows:

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Reason for the style sheet to be associated with the documentAppears in document.
+ styleSheets list		Getting the owner element/rule given the style sheet objectThe interface for the owner objectGetting the CSSStyleSheet object from the owner
{{HTMLElement("style")}} and {{HTMLElement("link")}} elements in the documentYes{{domxref("StyleSheet.ownerNode", ".ownerNode")}}{{domxref("HTMLLinkElement")}},
+ {{domxref("HTMLStyleElement")}},
+ or {{domxref("SVGStyleElement")}}		{{domxref("LinkStyle.sheet", ".sheet")}}
CSS {{cssxref("@import")}} rule in other style sheets applied to the documentYes{{domxref("CSSStyleSheet.ownerRule", ".ownerRule")}}{{domxref("CSSImportRule")}}{{domxref("CSSImportRule.styleSheet", ".styleSheet")}}
<?xml-stylesheet ?> processing instruction in the (non-HTML) documentYes{{domxref("StyleSheet.ownerNode", ".ownerNode")}}{{domxref("ProcessingInstruction")}}{{domxref("LinkStyle.sheet", ".sheet")}}
HTTP Link HeaderYesN/AN/AN/A
User agent (default) style sheetsNoN/AN/AN/A
+ +

Specifications

+ + + + + + + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName("CSSOM", "#cssstylesheet", 'CSSStyleSheet')}}{{Spec2("CSSOM")}} 
{{SpecName("DOM2 Style", "css.html#CSS-CSSStyleSheet", "CSSStyleSheet")}}{{Spec2("DOM2 Style")}}Initial definition
+ +

Browser compatibility

+ +

{{CompatibilityTable}}

+ +
+ + + + + + + + + + + + + + + + + + + + + +
FeatureChromeEdgeFirefox (Gecko)Internet ExplorerOperaSafari (WebKit)
Basic support{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}9.0{{CompatVersionUnknown}}{{CompatVersionUnknown}}
+
+ +
+ + + + + + + + + + + + + + + + + + + + + +
FeatureAndroidEdgeFirefox Mobile (Gecko)IE PhoneOpera MobileSafari Mobile
Basic support{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}
+
+ +

See also

+ + diff --git a/files/zh-tw/web/api/cssstylesheet/insertrule/index.html b/files/zh-tw/web/api/cssstylesheet/insertrule/index.html new file mode 100644 index 0000000000..3cd8ba5a87 --- /dev/null +++ b/files/zh-tw/web/api/cssstylesheet/insertrule/index.html @@ -0,0 +1,219 @@ +--- +title: CSSStyleSheet.insertRule() +slug: Web/API/CSSStyleSheet/insertRule +translation_of: Web/API/CSSStyleSheet/insertRule +--- +
{{APIRef("CSSOM")}} 
+ +

CSSStyleSheet.insertRule() 方法新增一個新的 CSS 規則，到當前的樣式表，他伴隨著一些限制.  

+ +

更明確的說，雖然 insertRule() 只是一個 {{domxref("CSSStyleSheet")}} 的方法， 他實際上插入這份規則到 {{domxref("CSSStyleSheet")}}.cssRules, 在 {{domxref("CSSRuleList")}} 之中。

+ +

這份規則，必須包含的內容，取決於它的類型： 對於規則集 (rule-sets)，規則同時指定了選擇器和样式聲明。 對於規則 (at-rules)，規則同時指定 at 標識符（ at-identifier ）和規則內容。

+ +

Syntax

+ +

+
+stylesheet.insertRule(rule[, index])
+ +

Parameters

+ +
+
rule
+
一個  {{domxref("DOMString")}} 包含要被插入的規則，這份規則同時指定了選擇器（ selector ）和样式聲明，或 at 標識符 (at-identifier ) 和規則內容。
+
index {{optional_inline}}
+
+

無符號整數，代表在 {{domxref("CSSStyleSheet")}}.cssRules 中插入的位置，其中 index-0 是第一個規則，而 index-max 就是最後一個規則，並且與 CSSStyleSheet 的長度相同。cssRules 在舊的實現中是必需的。查詢「瀏覽器兼容」取得詳細信息。 默認值為 0。

+
+
+ +

Return value

+ +

The index within the style sheet's rule-list of the newly inserted rule.

+ +

Restrictions  限制

+ +

CSS 樣式表規則列表，有一些直覺的、和不是那麼直覺的限制 ，影響著規則的插入方式和位置。
+ 違反這些可能會導致 DOM 異常 ({{domxref("DOMException")}}) 引發錯誤。

+ + + +

Examples

+ +

Example 1

+ +
// push a new rule onto the top of my stylesheet
+myStyle.insertRule("#blanc { color: white }", 0);
+
+ +

Example 2

+ +
/**
+ * Add a stylesheet rule to the document (may be better practice, however,
+ * to dynamically change classes, so style information can be kept in
+ * genuine stylesheets (and avoid adding extra elements to the DOM))
+ * Note that an array is needed for declarations and rules since ECMAScript does
+ * not afford a predictable object iteration order and since CSS is
+ * order-dependent (i.e., it is cascading); those without need of
+ * cascading rules could build a more accessor-friendly object-based API.
+ * @param {Array} rules Accepts an array of JSON-encoded declarations
+ * @example
+addStylesheetRules([
+  ['h2', // Also accepts a second argument as an array of arrays instead
+    ['color', 'red'],
+    ['background-color', 'green', true] // 'true' for !important rules
+  ],
+  ['.myClass',
+    ['background-color', 'yellow']
+  ]
+]);
+ */
+function addStylesheetRules (rules) {
+  var styleEl = document.createElement('style'),
+      styleSheet;
+
+  // Append style element to head
+  document.head.appendChild(styleEl);
+
+  // Grab style sheet
+  styleSheet = styleEl.sheet;
+
+  for (var i = 0, rl = rules.length; i < rl; i++) {
+    var j = 1, rule = rules[i], selector = rules[i][0], propStr = '';
+    // If the second argument of a rule is an array of arrays, correct our variables.
+    if (Object.prototype.toString.call(rule[1][0]) === '[object Array]') {
+      rule = rule[1];
+      j = 0;
+    }
+
+    for (var pl = rule.length; j < pl; j++) {
+      var prop = rule[j];
+      propStr += prop[0] + ':' + prop[1] + (prop[2] ? ' !important' : '') + ';\n';
+    }
+
+    // Insert CSS Rule
+    styleSheet.insertRule(selector + '{' + propStr + '}', styleSheet.cssRules.length);
+  }
+}
+ +

Specifications

+ + + + + + + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('CSSOM', '#dom-cssstylesheet-insertrule', 'CSSStyleSheet.insertRule')}}{{Spec2('CSSOM')}}No change from {{SpecName('DOM2 Style')}}.
{{SpecName('DOM2 Style', 'css.html#CSS-CSSStyleSheet-insertRule', 'CSSStyleSheet.insertRule')}}{{Spec2('DOM2 Style')}}Initial definition
+ +

Browser compatibility

+ +

{{CompatibilityTable}}

+ +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
FeatureChromeEdgeFirefox (Gecko)Internet ExplorerOperaSafari
Basic support{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}9{{CompatVersionUnknown}}{{CompatVersionUnknown}}
index is optional{{CompatChrome(60)}}{{CompatUnknown}}{{CompatUnknown}}{{CompatUnknown}}{{CompatOpera(47)}}{{CompatUnknown}}
+
+ +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
FeatureAndroid WebviewChrome for AndroidEdgeFirefox Mobile (Gecko)IE MobileOpera MobileSafari Mobile
Basic support{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}
index is optional{{CompatChrome(60)}}{{CompatChrome(60)}}{{CompatUnknown}}{{CompatUnknown}}{{CompatUnknown}}{{CompatOperaMobile(47)}}{{CompatUnknown}}
+
+ +

Legacy browser support

+ + + +

See also

+ + -- cgit v1.2.3-54-g00ecf