PC World Komputer 2010 April/PCWorld0410.iso/pluginy Firefox/2108/2108.xpi/content/common.js

Text File | 2009-08-18 | 4.6 KB | 123 lines

var stylishCommon = {

    XULNS: "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul",

    //compares CSS, taking into account platform differences
    cssAreEqual: function(css1, css2) {
        if (css1 == null && css2 == null) {
            return true;
        }
        if (css1 == null || css2 == null) {
            return false;
        }
        return css1.replace(/\s/g, "") == css2.replace(/\s/g, "");
    },

    domApplyAttributes: function(element, json) {
        for (var i in json)
            element.setAttribute(i, json[i]);
    },

    dispatchEvent: function(doc, type) {
        if (!doc) {
            return;
        }
        var stylishEvent = doc.createEvent("Events");
        stylishEvent.initEvent(type, false, false, doc.defaultView, null);
        doc.dispatchEvent(stylishEvent);
    },

    getAppName: function() {
        var appInfo = Components.classes["@mozilla.org/xre/app-info;1"].getService(Components.interfaces.nsIXULAppInfo);
        return appInfo.name;
    },

    deleteWithPrompt: function(style) {
        const STRINGS = document.getElementById("stylish-common-strings");
        var title = STRINGS.getString("deleteStyleTitle")
        var prompt = STRINGS.getFormattedString("deleteStyle", [style.name])
        var prompts = Components.classes["@mozilla.org/embedcomp/prompt-service;1"].getService(Components.interfaces.nsIPromptService);
        if (prompts.confirmEx(window, title, prompt, prompts.BUTTON_POS_0 * prompts.BUTTON_TITLE_IS_STRING + prompts.BUTTON_POS_1 * prompts.BUTTON_TITLE_CANCEL, STRINGS.getString("deleteStyleOK"), null, null, null, {})) {
            return false;
        }
        style.delete();
        return true;
    },

    fixXHR: function(request) {
        //only a problem on 1.9 toolkit
        var appInfo = Components.classes["@mozilla.org/xre/app-info;1"].getService(Components.interfaces.nsIXULAppInfo);
        var versionChecker = Components.classes["@mozilla.org/xpcom/version-comparator;1"].getService(Components.interfaces.nsIVersionComparator);
        if (versionChecker.compare(appInfo.version, "1.9") >= 0 && versionChecker.compare(appInfo.version, "1.9.3a1pre") <= 0) {
            //https://bugzilla.mozilla.org/show_bug.cgi?id=437174
            var ds = Components.classes["@mozilla.org/webshell;1"].createInstance(Components.interfaces.nsIDocShellTreeItem).QueryInterface(Components.interfaces.nsIInterfaceRequestor);
            ds.itemType = Components.interfaces.nsIDocShellTreeItem.typeContent;
            request.channel.loadGroup = ds.getInterface(Components.interfaces.nsILoadGroup);
            request.channel.loadFlags |= Components.interfaces.nsIChannel.LOAD_DOCUMENT_URI;
        }
    },

    getWindowName: function(prefix, id) {
        return (prefix + (id || Math.random())).replace(/\W/g, "");
    },

    clearAllMenuItems: function(event) {
        var popup = event.target;
        for (var i = popup.childNodes.length - 1; i >= 0; i--) {
            popup.removeChild(popup.childNodes[i]);
        }
    },

    focusWindow: function(name) {
        //if a window is already open, openDialog will clobber the changes made. check for an open window for this style and focus to it
        var windowsMediator = Components.classes["@mozilla.org/appshell/window-mediator;1"].getService(Components.interfaces.nsIWindowMediator);
        var win = windowsMediator.getMostRecentWindow(name);
        if (win) {
            win.focus();
            return true;
        }
        return false;
    },

    openEdit: function(name, params) {
        if (stylishCommon.focusWindow(name)) {
            return;
        }
        params.windowType = name;
        return openDialog("chrome://stylish/content/edit.xul", name, "chrome,resizable,dialog=no,centerscreen", params);
    },

    openEditForStyle: function(style) {
        return stylishCommon.openEdit(stylishCommon.getWindowName("stylishEdit", style.id), {style: style});
    },

    openEditForId: function(id) {
        var service = Components.classes["@userstyles.org/style;1"].getService(Components.interfaces.stylishStyle);
        var style = service.find(id, service.REGISTER_STYLE_ON_CHANGE | service.CALCULATE_META);
        return stylishCommon.openEditForStyle(style);
    },

    openInstall: function(params) {
        function fillName(prefix) {
            params.windowType = stylishCommon.getWindowName(prefix, params.triggeringDocument ? stylishCommon.cleanURI(params.triggeringDocument.location.href) : null);
        }
        if (Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefBranch).getBoolPref("extensions.stylish.editOnInstall")) {
            fillName("stylishEdit");
            stylishCommon.openEdit(params.windowType, params);
        } else {
            fillName("stylishInstall");
            if (!stylishCommon.focusWindow(params.windowType)) {
                openDialog("chrome://stylish/content/install.xul", params.windowType, "chrome,resizable,dialog=no,centerscreen,resizable", params);
            }
        }
    },

    cleanURI: function(uri) {
        var hash = uri.indexOf("#");
        if (hash > -1) {
            uri = uri.substring(0, hash);
        }
        return uri;
    }
}