Add m-esr52 at 52.6.0

1 files changed, 242 insertions, 0 deletions

diff --git a/browser/components/newtab/NewTabMessages.jsm b/browser/components/newtab/NewTabMessages.jsm
new file mode 100644
index 000000000..0816ed65a
--- /dev/null
+++ b/browser/components/newtab/NewTabMessages.jsm
@@ -0,0 +1,242 @@
+/* global
+  NewTabWebChannel,
+  NewTabPrefsProvider,
+  PlacesProvider,
+  PreviewProvider,
+  NewTabSearchProvider,
+  Preferences,
+  XPCOMUtils,
+  Task
+*/
+
+/* exported NewTabMessages */
+
+"use strict";
+
+const {utils: Cu} = Components;
+Cu.import("resource://gre/modules/Preferences.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Task.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "PlacesProvider",
+                                  "resource:///modules/PlacesProvider.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "PreviewProvider",
+                                  "resource:///modules/PreviewProvider.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "NewTabPrefsProvider",
+                                  "resource:///modules/NewTabPrefsProvider.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "NewTabSearchProvider",
+                                  "resource:///modules/NewTabSearchProvider.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "NewTabWebChannel",
+                                  "resource:///modules/NewTabWebChannel.jsm");
+
+this.EXPORTED_SYMBOLS = ["NewTabMessages"];
+
+const PREF_ENABLED = "browser.newtabpage.remote";
+const CURRENT_ENGINE = "browser-search-engine-modified";
+
+// Action names are from the content's perspective. in from chrome == out from content
+// Maybe replace the ACTION objects by a bi-directional Map a bit later?
+const ACTIONS = {
+  inboundActions: [
+    "REQUEST_PREFS",
+    "REQUEST_THUMB",
+    "REQUEST_FRECENT",
+    "REQUEST_UISTRINGS",
+    "REQUEST_SEARCH_SUGGESTIONS",
+    "REQUEST_MANAGE_ENGINES",
+    "REQUEST_SEARCH_STATE",
+    "REQUEST_REMOVE_FORM_HISTORY",
+    "REQUEST_PERFORM_SEARCH",
+    "REQUEST_CYCLE_ENGINE",
+  ],
+  prefs: {
+    inPrefs: "REQUEST_PREFS",
+    outPrefs: "RECEIVE_PREFS",
+  },
+  preview: {
+    inThumb: "REQUEST_THUMB",
+    outThumb: "RECEIVE_THUMB",
+  },
+  links: {
+    inFrecent: "REQUEST_FRECENT",
+    outFrecent: "RECEIVE_FRECENT",
+    outPlacesChange: "RECEIVE_PLACES_CHANGE",
+  },
+  search: {
+    inSearch: {
+        UIStrings: "REQUEST_UISTRINGS",
+        suggestions: "REQUEST_SEARCH_SUGGESTIONS",
+        manageEngines: "REQUEST_MANAGE_ENGINES",
+        state: "REQUEST_SEARCH_STATE",
+        removeFormHistory: "REQUEST_REMOVE_FORM_HISTORY",
+        performSearch: "REQUEST_PERFORM_SEARCH",
+        cycleEngine: "REQUEST_CYCLE_ENGINE"
+    },
+    outSearch: {
+      UIStrings: "RECEIVE_UISTRINGS",
+      suggestions: "RECEIVE_SEARCH_SUGGESTIONS",
+      state: "RECEIVE_SEARCH_STATE",
+      currentEngine: "RECEIVE_CURRENT_ENGINE"
+    },
+  }
+};
+
+let NewTabMessages = {
+
+  _prefs: {},
+
+  /** NEWTAB EVENT HANDLERS **/
+
+  handleContentRequest(actionName, {data, target}) {
+    switch (actionName) {
+      case ACTIONS.prefs.inPrefs:
+        // Return to the originator all newtabpage prefs
+        let results = NewTabPrefsProvider.prefs.newtabPagePrefs;
+        NewTabWebChannel.send(ACTIONS.prefs.outPrefs, results, target);
+        break;
+      case ACTIONS.preview.inThumb:
+        // Return to the originator a preview URL
+        PreviewProvider.getThumbnail(data).then(imgData => {
+          NewTabWebChannel.send(ACTIONS.preview.outThumb, {url: data, imgData}, target);
+        });
+        break;
+      case ACTIONS.links.inFrecent:
+        // Return to the originator the top frecent links
+        PlacesProvider.links.getLinks().then(links => {
+          NewTabWebChannel.send(ACTIONS.links.outFrecent, links, target);
+        });
+        break;
+      case ACTIONS.search.inSearch.UIStrings:
+        // Return to the originator all search strings to display
+        let strings = NewTabSearchProvider.search.searchSuggestionUIStrings;
+        NewTabWebChannel.send(ACTIONS.search.outSearch.UIStrings, strings, target);
+        break;
+      case ACTIONS.search.inSearch.suggestions:
+        // Return to the originator all search suggestions
+        Task.spawn(function*() {
+          try {
+            let {engineName, searchString} = data;
+            let suggestions = yield NewTabSearchProvider.search.asyncGetSuggestions(engineName, searchString, target);
+            NewTabWebChannel.send(ACTIONS.search.outSearch.suggestions, suggestions, target);
+          } catch (e) {
+            Cu.reportError(e);
+          }
+        });
+        break;
+      case ACTIONS.search.inSearch.manageEngines:
+        // Open about:preferences to manage search state
+        NewTabSearchProvider.search.manageEngines(target.browser);
+        break;
+      case ACTIONS.search.inSearch.state:
+        // Return the state of the search component (i.e current engine and visible engine details)
+        Task.spawn(function*() {
+          try {
+            let state = yield NewTabSearchProvider.search.asyncGetState();
+            NewTabWebChannel.broadcast(ACTIONS.search.outSearch.state, state);
+          } catch (e) {
+            Cu.reportError(e);
+          }
+        });
+        break;
+      case ACTIONS.search.inSearch.removeFormHistory:
+        // Remove a form history entry from the search component
+        let suggestion = data;
+        NewTabSearchProvider.search.removeFormHistory(target, suggestion);
+        break;
+      case ACTIONS.search.inSearch.performSearch:
+        // Perform a search
+        NewTabSearchProvider.search.asyncPerformSearch(target, data).catch(Cu.reportError);
+        break;
+      case ACTIONS.search.inSearch.cycleEngine:
+        // Set the new current engine
+        NewTabSearchProvider.search.asyncCycleEngine(data).catch(Cu.reportError);
+        break;
+    }
+  },
+
+  /*
+   * Broadcast places change to all open newtab pages
+   */
+  handlePlacesChange(type, data) {
+    NewTabWebChannel.broadcast(ACTIONS.links.outPlacesChange, {type, data});
+  },
+
+  /*
+   * Broadcast current engine has changed to all open newtab pages
+   */
+  _handleCurrentEngineChange(name, value) { // jshint unused: false
+    let engine = value;
+    NewTabWebChannel.broadcast(ACTIONS.search.outSearch.currentEngine, engine);
+  },
+
+  /*
+   * Broadcast preference changes to all open newtab pages
+   */
+  handlePrefChange(actionName, value) {
+    let prefChange = {};
+    prefChange[actionName] = value;
+    NewTabWebChannel.broadcast(ACTIONS.prefs.outPrefs, prefChange);
+  },
+
+  _handleEnabledChange(prefName, value) {
+    if (prefName === PREF_ENABLED) {
+      if (this._prefs.enabled && !value) {
+        this.uninit();
+      } else if (!this._prefs.enabled && value) {
+        this.init();
+      }
+    }
+  },
+
+  init() {
+    this.handleContentRequest = this.handleContentRequest.bind(this);
+    this._handleEnabledChange = this._handleEnabledChange.bind(this);
+    this._handleCurrentEngineChange = this._handleCurrentEngineChange.bind(this);
+
+    PlacesProvider.links.init();
+    NewTabPrefsProvider.prefs.init();
+    NewTabSearchProvider.search.init();
+    NewTabWebChannel.init();
+
+    this._prefs.enabled = Preferences.get(PREF_ENABLED, false);
+
+    if (this._prefs.enabled) {
+      for (let action of ACTIONS.inboundActions) {
+        NewTabWebChannel.on(action, this.handleContentRequest);
+      }
+
+      NewTabPrefsProvider.prefs.on(PREF_ENABLED, this._handleEnabledChange);
+      NewTabSearchProvider.search.on(CURRENT_ENGINE, this._handleCurrentEngineChange);
+
+      for (let pref of NewTabPrefsProvider.newtabPagePrefSet) {
+        NewTabPrefsProvider.prefs.on(pref, this.handlePrefChange);
+      }
+
+      PlacesProvider.links.on("deleteURI", this.handlePlacesChange);
+      PlacesProvider.links.on("clearHistory", this.handlePlacesChange);
+      PlacesProvider.links.on("linkChanged", this.handlePlacesChange);
+      PlacesProvider.links.on("manyLinksChanged", this.handlePlacesChange);
+    }
+  },
+
+  uninit() {
+    this._prefs.enabled = Preferences.get(PREF_ENABLED, false);
+
+    if (this._prefs.enabled) {
+      NewTabPrefsProvider.prefs.off(PREF_ENABLED, this._handleEnabledChange);
+      NewTabSearchProvider.search.off(CURRENT_ENGINE, this._handleCurrentEngineChange);
+
+      for (let action of ACTIONS.inboundActions) {
+        NewTabWebChannel.off(action, this.handleContentRequest);
+      }
+
+      for (let pref of NewTabPrefsProvider.newtabPagePrefSet) {
+        NewTabPrefsProvider.prefs.off(pref, this.handlePrefChange);
+      }
+    }
+
+    NewTabPrefsProvider.prefs.uninit();
+    NewTabSearchProvider.search.uninit();
+    NewTabWebChannel.uninit();
+  }
+};