forked from mirrors/gecko-dev
129 lines
4.3 KiB
JavaScript
129 lines
4.3 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* eslint-env mozilla/browser-window */
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var gPageStyleMenu = {
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_getStyleSheetInfo(browser) {
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let actor = browser.browsingContext.currentWindowGlobal?.getActor(
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"PageStyle"
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);
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let styleSheetInfo;
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if (actor) {
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styleSheetInfo = actor.getSheetInfo();
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} else {
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// Fallback if the actor is missing or we don't have a window global.
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// It's unlikely things will work well but let's be optimistic,
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// rather than throwing exceptions immediately.
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styleSheetInfo = {
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filteredStyleSheets: [],
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authorStyleDisabled: false,
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preferredStyleSheetSet: true,
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};
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}
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return styleSheetInfo;
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},
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fillPopup(menuPopup) {
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let styleSheetInfo = this._getStyleSheetInfo(gBrowser.selectedBrowser);
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var noStyle = menuPopup.firstElementChild;
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var persistentOnly = noStyle.nextElementSibling;
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var sep = persistentOnly.nextElementSibling;
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while (sep.nextElementSibling) {
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menuPopup.removeChild(sep.nextElementSibling);
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}
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let styleSheets = styleSheetInfo.filteredStyleSheets;
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var currentStyleSheets = {};
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var styleDisabled = styleSheetInfo.authorStyleDisabled;
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var haveAltSheets = false;
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var altStyleSelected = false;
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for (let currentStyleSheet of styleSheets) {
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if (!currentStyleSheet.disabled) {
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altStyleSelected = true;
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}
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haveAltSheets = true;
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let lastWithSameTitle = null;
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if (currentStyleSheet.title in currentStyleSheets) {
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lastWithSameTitle = currentStyleSheets[currentStyleSheet.title];
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}
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if (!lastWithSameTitle) {
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let menuItem = document.createXULElement("menuitem");
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menuItem.setAttribute("type", "radio");
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menuItem.setAttribute("label", currentStyleSheet.title);
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menuItem.setAttribute("data", currentStyleSheet.title);
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menuItem.setAttribute(
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"checked",
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!currentStyleSheet.disabled && !styleDisabled
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);
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menuItem.setAttribute(
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"oncommand",
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"gPageStyleMenu.switchStyleSheet(this.getAttribute('data'));"
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);
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menuPopup.appendChild(menuItem);
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currentStyleSheets[currentStyleSheet.title] = menuItem;
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} else if (currentStyleSheet.disabled) {
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lastWithSameTitle.removeAttribute("checked");
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}
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}
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noStyle.setAttribute("checked", styleDisabled);
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persistentOnly.setAttribute("checked", !altStyleSelected && !styleDisabled);
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persistentOnly.hidden = styleSheetInfo.preferredStyleSheetSet
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? haveAltSheets
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: false;
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sep.hidden = (noStyle.hidden && persistentOnly.hidden) || !haveAltSheets;
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},
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/**
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* Send a message to all PageStyleParents by walking the BrowsingContext tree.
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* @param message
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* The string message to send to each PageStyleChild.
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* @param data
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* The data to send to each PageStyleChild within the message.
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*/
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_sendMessageToAll(message, data) {
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let contextsToVisit = [gBrowser.selectedBrowser.browsingContext];
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while (contextsToVisit.length) {
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let currentContext = contextsToVisit.pop();
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let global = currentContext.currentWindowGlobal;
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if (!global) {
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continue;
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}
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let actor = global.getActor("PageStyle");
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actor.sendAsyncMessage(message, data);
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contextsToVisit.push(...currentContext.children);
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}
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},
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/**
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* Switch the stylesheet of all documents in the current browser.
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* @param title The title of the stylesheet to switch to.
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*/
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switchStyleSheet(title) {
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let sheetData = this._getStyleSheetInfo(gBrowser.selectedBrowser);
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sheetData.authorStyleDisabled = false;
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for (let sheet of sheetData.filteredStyleSheets) {
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sheet.disabled = sheet.title !== title;
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}
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this._sendMessageToAll("PageStyle:Switch", { title });
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},
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/**
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* Disable all stylesheets. Called with View > Page Style > No Style.
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*/
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disableStyle() {
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let sheetData = this._getStyleSheetInfo(gBrowser.selectedBrowser);
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sheetData.authorStyleDisabled = true;
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this._sendMessageToAll("PageStyle:Disable", {});
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},
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};
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