addon-sdk/source/lib/sdk/ui/sidebar.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/addon-sdk/source/lib/sdk/ui/sidebar.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,300 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 +* License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 +* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +'use strict';
     1.8 +
     1.9 +module.metadata = {
    1.10 +  'stability': 'experimental',
    1.11 +  'engines': {
    1.12 +    'Firefox': '*'
    1.13 +  }
    1.14 +};
    1.15 +
    1.16 +const { Class } = require('../core/heritage');
    1.17 +const { merge } = require('../util/object');
    1.18 +const { Disposable } = require('../core/disposable');
    1.19 +const { off, emit, setListeners } = require('../event/core');
    1.20 +const { EventTarget } = require('../event/target');
    1.21 +const { URL } = require('../url');
    1.22 +const { add, remove, has, clear, iterator } = require('../lang/weak-set');
    1.23 +const { id: addonID } = require('../self');
    1.24 +const { WindowTracker } = require('../deprecated/window-utils');
    1.25 +const { isShowing } = require('./sidebar/utils');
    1.26 +const { isBrowser, getMostRecentBrowserWindow, windows, isWindowPrivate } = require('../window/utils');
    1.27 +const { ns } = require('../core/namespace');
    1.28 +const { remove: removeFromArray } = require('../util/array');
    1.29 +const { show, hide, toggle } = require('./sidebar/actions');
    1.30 +const { Worker } = require('../content/worker');
    1.31 +const { contract: sidebarContract } = require('./sidebar/contract');
    1.32 +const { create, dispose, updateTitle, updateURL, isSidebarShowing, showSidebar, hideSidebar } = require('./sidebar/view');
    1.33 +const { defer } = require('../core/promise');
    1.34 +const { models, views, viewsFor, modelFor } = require('./sidebar/namespace');
    1.35 +const { isLocalURL } = require('../url');
    1.36 +const { ensure } = require('../system/unload');
    1.37 +const { identify } = require('./id');
    1.38 +const { uuid } = require('../util/uuid');
    1.39 +
    1.40 +const sidebarNS = ns();
    1.41 +
    1.42 +const WEB_PANEL_BROWSER_ID = 'web-panels-browser';
    1.43 +
    1.44 +let sidebars = {};
    1.45 +
    1.46 +const Sidebar = Class({
    1.47 +  implements: [ Disposable ],
    1.48 +  extends: EventTarget,
    1.49 +  setup: function(options) {
    1.50 +    // inital validation for the model information
    1.51 +    let model = sidebarContract(options);
    1.52 +
    1.53 +    // save the model information
    1.54 +    models.set(this, model);
    1.55 +
    1.56 +    // generate an id if one was not provided
    1.57 +    model.id = model.id || addonID + '-' + uuid();
    1.58 +
    1.59 +    // further validation for the title and url
    1.60 +    validateTitleAndURLCombo({}, this.title, this.url);
    1.61 +
    1.62 +    const self = this;
    1.63 +    const internals = sidebarNS(self);
    1.64 +    const windowNS = internals.windowNS = ns();
    1.65 +
    1.66 +    // see bug https://bugzilla.mozilla.org/show_bug.cgi?id=886148
    1.67 +    ensure(this, 'destroy');
    1.68 +
    1.69 +    setListeners(this, options);
    1.70 +
    1.71 +    let bars = [];
    1.72 +    internals.tracker = WindowTracker({
    1.73 +      onTrack: function(window) {
    1.74 +        if (!isBrowser(window))
    1.75 +          return;
    1.76 +
    1.77 +        let sidebar = window.document.getElementById('sidebar');
    1.78 +        let sidebarBox = window.document.getElementById('sidebar-box');
    1.79 +
    1.80 +        let bar = create(window, {
    1.81 +          id: self.id,
    1.82 +          title: self.title,
    1.83 +          sidebarurl: self.url
    1.84 +        });
    1.85 +        bars.push(bar);
    1.86 +        windowNS(window).bar = bar;
    1.87 +
    1.88 +        bar.addEventListener('command', function() {
    1.89 +          if (isSidebarShowing(window, self)) {
    1.90 +            hideSidebar(window, self);
    1.91 +            return;
    1.92 +          }
    1.93 +
    1.94 +          showSidebar(window, self);
    1.95 +        }, false);
    1.96 +
    1.97 +        function onSidebarLoad() {
    1.98 +          // check if the sidebar is ready
    1.99 +          let isReady = sidebar.docShell && sidebar.contentDocument;
   1.100 +          if (!isReady)
   1.101 +            return;
   1.102 +
   1.103 +          // check if it is a web panel
   1.104 +          let panelBrowser = sidebar.contentDocument.getElementById(WEB_PANEL_BROWSER_ID);
   1.105 +          if (!panelBrowser) {
   1.106 +            bar.removeAttribute('checked');
   1.107 +            return;
   1.108 +          }
   1.109 +
   1.110 +          let sbTitle = window.document.getElementById('sidebar-title');
   1.111 +          function onWebPanelSidebarCreated() {
   1.112 +            if (panelBrowser.contentWindow.location != model.url ||
   1.113 +                sbTitle.value != model.title) {
   1.114 +              return;
   1.115 +            }
   1.116 +
   1.117 +            let worker = windowNS(window).worker = Worker({
   1.118 +              window: panelBrowser.contentWindow,
   1.119 +              injectInDocument: true
   1.120 +            });
   1.121 +
   1.122 +            function onWebPanelSidebarUnload() {
   1.123 +              windowNS(window).onWebPanelSidebarUnload = null;
   1.124 +
   1.125 +              // uncheck the associated menuitem
   1.126 +              bar.setAttribute('checked', 'false');
   1.127 +
   1.128 +              emit(self, 'hide', {});
   1.129 +              emit(self, 'detach', worker);
   1.130 +              windowNS(window).worker = null;
   1.131 +            }
   1.132 +            windowNS(window).onWebPanelSidebarUnload = onWebPanelSidebarUnload;
   1.133 +            panelBrowser.contentWindow.addEventListener('unload', onWebPanelSidebarUnload, true);
   1.134 +
   1.135 +            // check the associated menuitem
   1.136 +            bar.setAttribute('checked', 'true');
   1.137 +
   1.138 +            function onWebPanelSidebarReady() {
   1.139 +              panelBrowser.contentWindow.removeEventListener('DOMContentLoaded', onWebPanelSidebarReady, false);
   1.140 +              windowNS(window).onWebPanelSidebarReady = null;
   1.141 +
   1.142 +              emit(self, 'ready', worker);
   1.143 +            }
   1.144 +            windowNS(window).onWebPanelSidebarReady = onWebPanelSidebarReady;
   1.145 +            panelBrowser.contentWindow.addEventListener('DOMContentLoaded', onWebPanelSidebarReady, false);
   1.146 +
   1.147 +            function onWebPanelSidebarLoad() {
   1.148 +              panelBrowser.contentWindow.removeEventListener('load', onWebPanelSidebarLoad, true);
   1.149 +              windowNS(window).onWebPanelSidebarLoad = null;
   1.150 +
   1.151 +              // TODO: decide if returning worker is acceptable..
   1.152 +              //emit(self, 'show', { worker: worker });
   1.153 +              emit(self, 'show', {});
   1.154 +            }
   1.155 +            windowNS(window).onWebPanelSidebarLoad = onWebPanelSidebarLoad;
   1.156 +            panelBrowser.contentWindow.addEventListener('load', onWebPanelSidebarLoad, true);
   1.157 +
   1.158 +            emit(self, 'attach', worker);
   1.159 +          }
   1.160 +          windowNS(window).onWebPanelSidebarCreated = onWebPanelSidebarCreated;
   1.161 +          panelBrowser.addEventListener('DOMWindowCreated', onWebPanelSidebarCreated, true);
   1.162 +        }
   1.163 +        windowNS(window).onSidebarLoad = onSidebarLoad;
   1.164 +        sidebar.addEventListener('load', onSidebarLoad, true); // removed properly
   1.165 +      },
   1.166 +      onUntrack: function(window) {
   1.167 +        if (!isBrowser(window))
   1.168 +          return;
   1.169 +
   1.170 +        // hide the sidebar if it is showing
   1.171 +        hideSidebar(window, self);
   1.172 +
   1.173 +        // kill the menu item
   1.174 +        let { bar } = windowNS(window);
   1.175 +        if (bar) {
   1.176 +          removeFromArray(viewsFor(self), bar);
   1.177 +          dispose(bar);
   1.178 +        }
   1.179 +
   1.180 +        // kill listeners
   1.181 +        let sidebar = window.document.getElementById('sidebar');
   1.182 +
   1.183 +        if (windowNS(window).onSidebarLoad) {
   1.184 +          sidebar && sidebar.removeEventListener('load', windowNS(window).onSidebarLoad, true)
   1.185 +          windowNS(window).onSidebarLoad = null;
   1.186 +        }
   1.187 +
   1.188 +        let panelBrowser = sidebar && sidebar.contentDocument.getElementById(WEB_PANEL_BROWSER_ID);
   1.189 +        if (windowNS(window).onWebPanelSidebarCreated) {
   1.190 +          panelBrowser && panelBrowser.removeEventListener('DOMWindowCreated', windowNS(window).onWebPanelSidebarCreated, true);
   1.191 +          windowNS(window).onWebPanelSidebarCreated = null;
   1.192 +        }
   1.193 +
   1.194 +        if (windowNS(window).onWebPanelSidebarReady) {
   1.195 +          panelBrowser && panelBrowser.contentWindow.removeEventListener('DOMContentLoaded', windowNS(window).onWebPanelSidebarReady, false);
   1.196 +          windowNS(window).onWebPanelSidebarReady = null;
   1.197 +        }
   1.198 +
   1.199 +        if (windowNS(window).onWebPanelSidebarLoad) {
   1.200 +          panelBrowser && panelBrowser.contentWindow.removeEventListener('load', windowNS(window).onWebPanelSidebarLoad, true);
   1.201 +          windowNS(window).onWebPanelSidebarLoad = null;
   1.202 +        }
   1.203 +
   1.204 +        if (windowNS(window).onWebPanelSidebarUnload) {
   1.205 +          panelBrowser && panelBrowser.contentWindow.removeEventListener('unload', windowNS(window).onWebPanelSidebarUnload, true);
   1.206 +          windowNS(window).onWebPanelSidebarUnload();
   1.207 +        }
   1.208 +      }
   1.209 +    });
   1.210 +
   1.211 +    views.set(this, bars);
   1.212 +
   1.213 +    add(sidebars, this);
   1.214 +  },
   1.215 +  get id() (modelFor(this) || {}).id,
   1.216 +  get title() (modelFor(this) || {}).title,
   1.217 +  set title(v) {
   1.218 +    // destroyed?
   1.219 +    if (!modelFor(this))
   1.220 +      return;
   1.221 +    // validation
   1.222 +    if (typeof v != 'string')
   1.223 +      throw Error('title must be a string');
   1.224 +    validateTitleAndURLCombo(this, v, this.url);
   1.225 +    // do update
   1.226 +    updateTitle(this, v);
   1.227 +    return modelFor(this).title = v;
   1.228 +  },
   1.229 +  get url() (modelFor(this) || {}).url,
   1.230 +  set url(v) {
   1.231 +    // destroyed?
   1.232 +    if (!modelFor(this))
   1.233 +      return;
   1.234 +
   1.235 +    // validation
   1.236 +    if (!isLocalURL(v))
   1.237 +      throw Error('the url must be a valid local url');
   1.238 +
   1.239 +    validateTitleAndURLCombo(this, this.title, v);
   1.240 +
   1.241 +    // do update
   1.242 +    updateURL(this, v);
   1.243 +    modelFor(this).url = v;
   1.244 +  },
   1.245 +  show: function() {
   1.246 +    return showSidebar(null, this);
   1.247 +  },
   1.248 +  hide: function() {
   1.249 +    return hideSidebar(null, this);
   1.250 +  },
   1.251 +  dispose: function() {
   1.252 +    const internals = sidebarNS(this);
   1.253 +
   1.254 +    off(this);
   1.255 +
   1.256 +    remove(sidebars, this);
   1.257 +
   1.258 +    // stop tracking windows
   1.259 +    if (internals.tracker) {
   1.260 +      internals.tracker.unload();
   1.261 +    }
   1.262 +
   1.263 +    internals.tracker = null;
   1.264 +    internals.windowNS = null;
   1.265 +
   1.266 +    views.delete(this);
   1.267 +    models.delete(this);
   1.268 +  }
   1.269 +});
   1.270 +exports.Sidebar = Sidebar;
   1.271 +
   1.272 +function validateTitleAndURLCombo(sidebar, title, url) {
   1.273 +  if (sidebar.title == title && sidebar.url == url) {
   1.274 +    return false;
   1.275 +  }
   1.276 +
   1.277 +  for (let window of windows(null, { includePrivate: true })) {
   1.278 +    let sidebar = window.document.querySelector('menuitem[sidebarurl="' + url + '"][label="' + title + '"]');
   1.279 +    if (sidebar) {
   1.280 +      throw Error('The provided title and url combination is invalid (already used).');
   1.281 +    }
   1.282 +  }
   1.283 +
   1.284 +  return false;
   1.285 +}
   1.286 +
   1.287 +isShowing.define(Sidebar, isSidebarShowing.bind(null, null));
   1.288 +show.define(Sidebar, showSidebar.bind(null, null));
   1.289 +hide.define(Sidebar, hideSidebar.bind(null, null));
   1.290 +
   1.291 +identify.define(Sidebar, function(sidebar) {
   1.292 +  return sidebar.id;
   1.293 +});
   1.294 +
   1.295 +function toggleSidebar(window, sidebar) {
   1.296 +  // TODO: make sure this is not private
   1.297 +  window = window || getMostRecentBrowserWindow();
   1.298 +  if (isSidebarShowing(window, sidebar)) {
   1.299 +    return hideSidebar(window, sidebar);
   1.300 +  }
   1.301 +  return showSidebar(window, sidebar);
   1.302 +}
   1.303 +toggle.define(Sidebar, toggleSidebar.bind(null, null));

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