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@ -30,12 +30,15 @@ class Theme {
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this.themeFolder = "themes";
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this.styleSheetType = "text/css";
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this.styleSheetRel = "stylesheet";
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this.selectedTheme = this.defaultThemeType;
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//TODO Need to get the app context properly when the server is ready
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this.baseURL = window.location.origin;
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this.appContext = window.location.pathname.split("/")[1];
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this.loadThemeConfigs.bind(this);
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this.loadThemeFiles.bind(this);
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this.insertThemingScripts.bind(this);
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this.removeThemingScripts.bind(this);
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}
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/**
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@ -64,6 +67,44 @@ class Theme {
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return httpClient.get();
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}
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/**
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* To insert the css files to the document.
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* @param scriptId ID of the script that need to be inserted
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*/
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insertThemingScripts(scriptId) {
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const script = scriptId + ".css";
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let themePath = "/" + this.themeFolder + "/" + this.selectedTheme + "/" + script;
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let themeFile = this.loadThemeFiles(themePath);
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let head = document.getElementsByTagName("head")[0];
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let link = document.createElement("link");
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link.type = this.styleSheetType;
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link.href = this.baseURL + "/" + this.appContext + themePath;
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link.id = scriptId;
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link.rel = this.styleSheetRel;
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this.removeThemingScripts(scriptId);
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themeFile.then(function () {
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head.appendChild(link);
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}).catch(error => {
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// If there is no customized css file, load the default one.
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themePath = "/" + this.themeFolder + "/" + this.defaultThemeType + "/" + script;
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link.href = this.baseURL + "/" + this.appContext + themePath;
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head.appendChild(link);
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});
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}
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/**
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* To remove the css scripts that are inserted before.
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* @param scriptId Id of the script that need to be removed
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*/
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removeThemingScripts(scriptId) {
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let styleSheet = document.getElementById(scriptId);
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if (styleSheet !== null) {
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styleSheet.disabled = true;
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styleSheet.parentNode.removeChild(styleSheet);
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}
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}
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}
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export default (new Theme);
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