SQL Operations Studio Public Preview 1 (0.23) release source code

src/vs/css.js

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+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------------------------
+ *---------------------------------------------------------------------------------------------
+ *---------------------------------------------------------------------------------------------
+ *---------------------------------------------------------------------------------------------
+ *---------------------------------------------------------------------------------------------
+ * Please make sure to make edits in the .ts file at https://github.com/Microsoft/vscode-loader/
+ *---------------------------------------------------------------------------------------------
+ *---------------------------------------------------------------------------------------------
+ *---------------------------------------------------------------------------------------------
+ *---------------------------------------------------------------------------------------------
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+var CSSLoaderPlugin;
+(function (CSSLoaderPlugin) {
+    /**
+     * Known issue:
+     * - In IE there is no way to know if the CSS file loaded successfully or not.
+     */
+    var BrowserCSSLoader = (function () {
+        function BrowserCSSLoader() {
+            this._pendingLoads = 0;
+        }
+        BrowserCSSLoader.prototype.attachListeners = function (name, linkNode, callback, errorback) {
+            var unbind = function () {
+                linkNode.removeEventListener('load', loadEventListener);
+                linkNode.removeEventListener('error', errorEventListener);
+            };
+            var loadEventListener = function (e) {
+                unbind();
+                callback();
+            };
+            var errorEventListener = function (e) {
+                unbind();
+                errorback(e);
+            };
+            linkNode.addEventListener('load', loadEventListener);
+            linkNode.addEventListener('error', errorEventListener);
+        };
+        BrowserCSSLoader.prototype._onLoad = function (name, callback) {
+            this._pendingLoads--;
+            callback();
+        };
+        BrowserCSSLoader.prototype._onLoadError = function (name, errorback, err) {
+            this._pendingLoads--;
+            errorback(err);
+        };
+        BrowserCSSLoader.prototype._insertLinkNode = function (linkNode) {
+            this._pendingLoads++;
+            var head = document.head || document.getElementsByTagName('head')[0];
+            var other = head.getElementsByTagName('link') || document.head.getElementsByTagName('script');
+            if (other.length > 0) {
+                head.insertBefore(linkNode, other[other.length - 1]);
+            }
+            else {
+                head.appendChild(linkNode);
+            }
+        };
+        BrowserCSSLoader.prototype.createLinkTag = function (name, cssUrl, externalCallback, externalErrorback) {
+            var _this = this;
+            var linkNode = document.createElement('link');
+            linkNode.setAttribute('rel', 'stylesheet');
+            linkNode.setAttribute('type', 'text/css');
+            linkNode.setAttribute('data-name', name);
+            var callback = function () { return _this._onLoad(name, externalCallback); };
+            var errorback = function (err) { return _this._onLoadError(name, externalErrorback, err); };
+            this.attachListeners(name, linkNode, callback, errorback);
+            linkNode.setAttribute('href', cssUrl);
+            return linkNode;
+        };
+        BrowserCSSLoader.prototype._linkTagExists = function (name, cssUrl) {
+            var i, len, nameAttr, hrefAttr, links = document.getElementsByTagName('link');
+            for (i = 0, len = links.length; i < len; i++) {
+                nameAttr = links[i].getAttribute('data-name');
+                hrefAttr = links[i].getAttribute('href');
+                if (nameAttr === name || hrefAttr === cssUrl) {
+                    return true;
+                }
+            }
+            return false;
+        };
+        BrowserCSSLoader.prototype.load = function (name, cssUrl, externalCallback, externalErrorback) {
+            if (this._linkTagExists(name, cssUrl)) {
+                externalCallback();
+                return;
+            }
+            var linkNode = this.createLinkTag(name, cssUrl, externalCallback, externalErrorback);
+            this._insertLinkNode(linkNode);
+        };
+        return BrowserCSSLoader;
+    }());
+    // ------------------------------ Finally, the plugin
+    var CSSPlugin = (function () {
+        function CSSPlugin() {
+            this._cssLoader = new BrowserCSSLoader();
+        }
+        CSSPlugin.prototype.load = function (name, req, load) {
+            var cssUrl = req.toUrl(name + '.css');
+            this._cssLoader.load(name, cssUrl, function (contents) {
+                load({});
+            }, function (err) {
+                if (typeof load.error === 'function') {
+                    load.error('Could not find ' + cssUrl + ' or it was empty');
+                }
+            });
+        };
+        return CSSPlugin;
+    }());
+    CSSLoaderPlugin.CSSPlugin = CSSPlugin;
+    function init() {
+        define('vs/css', new CSSPlugin());
+    }
+    CSSLoaderPlugin.init = init;
+    ;
+    if (typeof doNotInitLoader === 'undefined') {
+        init();
+    }
+})(CSSLoaderPlugin || (CSSLoaderPlugin = {}));