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authorMatt A. Tobin <email@mattatobin.com>2018-02-09 06:46:43 -0500
committerMatt A. Tobin <email@mattatobin.com>2018-02-09 06:46:43 -0500
commitac46df8daea09899ce30dc8fd70986e258c746bf (patch)
tree2750d3125fc253fd5b0671e4bd268eff1fd97296 /toolkit/jetpack/sdk/stylesheet
parent8cecf8d5208f3945b35f879bba3015bb1a11bec6 (diff)
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Move Add-on SDK source to toolkit/jetpack
Diffstat (limited to 'toolkit/jetpack/sdk/stylesheet')
-rw-r--r--toolkit/jetpack/sdk/stylesheet/style.js71
-rw-r--r--toolkit/jetpack/sdk/stylesheet/utils.js75
2 files changed, 146 insertions, 0 deletions
diff --git a/toolkit/jetpack/sdk/stylesheet/style.js b/toolkit/jetpack/sdk/stylesheet/style.js
new file mode 100644
index 000000000..7ec0787e1
--- /dev/null
+++ b/toolkit/jetpack/sdk/stylesheet/style.js
@@ -0,0 +1,71 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+module.metadata = {
+ "stability": "experimental"
+};
+
+const { Cc, Ci } = require("chrome");
+const { Class } = require("../core/heritage");
+const { URL, isLocalURL } = require('../url');
+const events = require("../system/events");
+const { loadSheet, removeSheet, isTypeValid } = require("./utils");
+const { isString } = require("../lang/type");
+const { attachTo, detachFrom } = require("../content/mod");
+const { data } = require('../self');
+
+const { freeze, create } = Object;
+
+function Style({ source, uri, type }) {
+ source = source == null ? null : freeze([].concat(source));
+ uri = uri == null ? null : freeze([].concat(uri));
+ type = type == null ? "author" : type;
+
+ if (source && !source.every(isString))
+ throw new Error('Style.source must be a string or an array of strings.');
+
+ if (uri && !uri.every(isLocalURL))
+ throw new Error('Style.uri must be a local URL or an array of local URLs');
+
+ if (type && !isTypeValid(type))
+ throw new Error('Style.type must be "agent", "user" or "author"');
+
+ return freeze(create(Style.prototype, {
+ "source": { value: source, enumerable: true },
+ "uri": { value: uri, enumerable: true },
+ "type": { value: type, enumerable: true }
+ }));
+};
+
+exports.Style = Style;
+
+attachTo.define(Style, function (style, window) {
+ if (style.uri) {
+ for (let uri of style.uri)
+ loadSheet(window, data.url(uri), style.type);
+ }
+
+ if (style.source) {
+ let uri = "data:text/css;charset=utf-8,";
+
+ uri += encodeURIComponent(style.source.join(""));
+
+ loadSheet(window, uri, style.type);
+ }
+});
+
+detachFrom.define(Style, function (style, window) {
+ if (style.uri)
+ for (let uri of style.uri)
+ removeSheet(window, data.url(uri));
+
+ if (style.source) {
+ let uri = "data:text/css;charset=utf-8,";
+
+ uri += encodeURIComponent(style.source.join(""));
+
+ removeSheet(window, uri, style.type);
+ }
+});
diff --git a/toolkit/jetpack/sdk/stylesheet/utils.js b/toolkit/jetpack/sdk/stylesheet/utils.js
new file mode 100644
index 000000000..844996bf3
--- /dev/null
+++ b/toolkit/jetpack/sdk/stylesheet/utils.js
@@ -0,0 +1,75 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+module.metadata = {
+ "stability": "experimental"
+};
+
+const { Ci } = require("chrome");
+
+const SHEET_TYPE = {
+ "agent": "AGENT_SHEET",
+ "user": "USER_SHEET",
+ "author": "AUTHOR_SHEET"
+};
+
+function getDOMWindowUtils(window) {
+ return window.QueryInterface(Ci.nsIInterfaceRequestor).
+ getInterface(Ci.nsIDOMWindowUtils);
+};
+
+/**
+ * Synchronously loads a style sheet from `uri` and adds it to the list of
+ * additional style sheets of the document.
+ * The sheets added takes effect immediately, and only on the document of the
+ * `window` given.
+ */
+function loadSheet(window, url, type) {
+ if (!(type && type in SHEET_TYPE))
+ type = "author";
+
+ type = SHEET_TYPE[type];
+
+ if (url instanceof Ci.nsIURI)
+ url = url.spec;
+
+ let winUtils = getDOMWindowUtils(window);
+ try {
+ winUtils.loadSheetUsingURIString(url, winUtils[type]);
+ }
+ catch (e) {};
+};
+exports.loadSheet = loadSheet;
+
+/**
+ * Remove the document style sheet at `sheetURI` from the list of additional
+ * style sheets of the document. The removal takes effect immediately.
+ */
+function removeSheet(window, url, type) {
+ if (!(type && type in SHEET_TYPE))
+ type = "author";
+
+ type = SHEET_TYPE[type];
+
+ if (url instanceof Ci.nsIURI)
+ url = url.spec;
+
+ let winUtils = getDOMWindowUtils(window);
+
+ try {
+ winUtils.removeSheetUsingURIString(url, winUtils[type]);
+ }
+ catch (e) {};
+};
+exports.removeSheet = removeSheet;
+
+/**
+ * Returns `true` if the `type` given is valid, otherwise `false`.
+ * The values currently accepted are: "agent", "user" and "author".
+ */
+function isTypeValid(type) {
+ return type in SHEET_TYPE;
+}
+exports.isTypeValid = isTypeValid;