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/* 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 { WindowTracker } = require('sdk/deprecated/window-utils');
const { isXULBrowser } = require('sdk/window/utils');
const { add, remove } = require('sdk/util/array');
const { getTabs, closeTab, getURI, getTabURL, getBrowserForTab } = require('sdk/tabs/utils');
const { data } = require('sdk/self');
const { ns } = require("sdk/core/namespace");
const tabs = require("sdk/tabs");
const { defer } = require("sdk/lang/functional");
// store list of addon URLs to hide the navigation bar from
// and to add proper style.
// the url is used as the key for lookup efficiency.
// Objects contained are: {[url]: { [styles] }}
let addonTabs = {};
const windows = ns();
/* Add tab to a list of URL/styles. Can be called
* from other scripts */
let addTabToList = function (options) {
options = options || {};
let url;
if (options.url) {
addonTabs[options.url] = {};
}
else {
throw new Error("No url provided for the AddonTab page");
}
if (options.tabStyle)
addonTabs[options.url] = options.tabStyle;
else
addonTabs[options.tabStyle] = null;
};
exports.removeAddonTab = function (url) {
if (url && url in addonTabs)
delete addonTabs[url];
};
let applyStyle = function (tab, property, value) {
tab.style.setProperty(property,
value,
'important');
};
let applyStyles = function (tab, url) {
if (!url) {
url = getURI(tab);
}
if (url in addonTabs && addonTabs[url] != null) {
for (let item in addonTabs[url]) {
applyStyle(tab, item, addonTabs[url][item]);
}
}
};
/* Simply adds the URL/style to the list,
* and then just open a tab using the high-level
* tab module.
*/
exports.open = function (options) {
addTabToList(options);
let tab = tabs.open(options);
return tab;
};
/*
* Track tabs opened and closed.
* Once you have a tab open, get the browser for it
* and figure out the location (which turns out to be the right one, not about:blank)
*/
tabs.on('open', function onOpen(tab) {
let browser = getBrowserForTab(tab);
tab.on('load', function onTabLoad(e) {
if (typeof browser == 'undefined') {
return;
}
// let's get the location of the document.
applyStyles(tab, browser.contentDocument.location);
}, true);
});
WindowTracker({
onTrack: function onTrack(window) {
if (!isXULBrowser(window) || windows(window).hideChromeForLocation)
return;
let { XULBrowserWindow } = window;
let { hideChromeForLocation } = XULBrowserWindow;
windows(window).hideChromeForLocation = hideChromeForLocation;
// Augmenting the behavior of `hideChromeForLocation` method, as
// suggested by https://developer.mozilla.org/en-US/docs/Hiding_browser_chrome
XULBrowserWindow.hideChromeForLocation = function(url) {
if (url in addonTabs)
return true;
return hideChromeForLocation.call(this, url);
};
},
onUntrack: function onUntrack(window) {
if (isXULBrowser(window))
getTabs(window).filter(tabFilter).forEach(untrackTab.bind(null, window));
}
});
function tabFilter(tab) {
if (getURI(tab) in addonTabs) {
return true;
}
return false;
}
function untrackTab(window, tab) {
// Note: `onUntrack` will be called for all windows on add-on unloads,
// so we want to clean them up from these URLs.
let { hideChromeForLocation } = windows(window);
if (hideChromeForLocation) {
window.XULBrowserWindow.hideChromeForLocation = hideChromeForLocation;
windows(window).hideChromeForLocation = null;
}
// had to remove closeTab call to prevent a TypeError: element is
// undefined.
//closeTab(tab);
}
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