summaryrefslogtreecommitdiffstats
path: root/browser/actors/AboutPrivateBrowsingParent.sys.mjs
blob: 5c6757b8a0ed617b7897ea76bfd07cedb313a6e7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
/* 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/. */

import { ASRouter } from "resource:///modules/asrouter/ASRouter.sys.mjs";
import { BrowserUtils } from "resource://gre/modules/BrowserUtils.sys.mjs";
import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";

const SHOWN_PREF = "browser.search.separatePrivateDefault.ui.banner.shown";
const lazy = {};
XPCOMUtils.defineLazyPreferenceGetter(
  lazy,
  "MAX_SEARCH_BANNER_SHOW_COUNT",
  "browser.search.separatePrivateDefault.ui.banner.max",
  0
);

XPCOMUtils.defineLazyPreferenceGetter(
  lazy,
  "isPrivateSearchUIEnabled",
  "browser.search.separatePrivateDefault.ui.enabled",
  false
);

ChromeUtils.defineESModuleGetters(lazy, {
  SpecialMessageActions:
    "resource://messaging-system/lib/SpecialMessageActions.sys.mjs",
});

// We only show the private search banner once per browser session.
let gSearchBannerShownThisSession;

export class AboutPrivateBrowsingParent extends JSWindowActorParent {
  constructor() {
    super();
    Services.telemetry.setEventRecordingEnabled("aboutprivatebrowsing", true);
  }
  // Used by tests
  static setShownThisSession(shown) {
    gSearchBannerShownThisSession = shown;
  }

  receiveMessage(aMessage) {
    let browser = this.browsingContext.top.embedderElement;
    if (!browser) {
      return undefined;
    }

    let win = browser.ownerGlobal;

    switch (aMessage.name) {
      case "OpenPrivateWindow": {
        win.OpenBrowserWindow({ private: true });
        break;
      }
      case "OpenSearchPreferences": {
        win.openPreferences("search", { origin: "about-privatebrowsing" });
        break;
      }
      case "SearchHandoff": {
        let urlBar = win.gURLBar;
        let searchEngine = Services.search.defaultPrivateEngine;
        let isFirstChange = true;

        if (!aMessage.data || !aMessage.data.text) {
          urlBar.setHiddenFocus();
        } else {
          // Pass the provided text to the awesomebar
          urlBar.handoff(aMessage.data.text, searchEngine);
          isFirstChange = false;
        }

        let checkFirstChange = () => {
          // Check if this is the first change since we hidden focused. If it is,
          // remove hidden focus styles, prepend the search alias and hide the
          // in-content search.
          if (isFirstChange) {
            isFirstChange = false;
            urlBar.removeHiddenFocus(true);
            urlBar.handoff("", searchEngine);
            this.sendAsyncMessage("DisableSearch");
            urlBar.removeEventListener("compositionstart", checkFirstChange);
            urlBar.removeEventListener("paste", checkFirstChange);
          }
        };

        let onKeydown = ev => {
          // Check if the keydown will cause a value change.
          if (ev.key.length === 1 && !ev.altKey && !ev.ctrlKey && !ev.metaKey) {
            checkFirstChange();
          }
          // If the Esc button is pressed, we are done. Show in-content search and cleanup.
          if (ev.key === "Escape") {
            onDone();
          }
        };

        let onDone = ev => {
          // We are done. Show in-content search again and cleanup.
          this.sendAsyncMessage("ShowSearch");

          const forceSuppressFocusBorder = ev?.type === "mousedown";
          urlBar.removeHiddenFocus(forceSuppressFocusBorder);

          urlBar.removeEventListener("keydown", onKeydown);
          urlBar.removeEventListener("mousedown", onDone);
          urlBar.removeEventListener("blur", onDone);
          urlBar.removeEventListener("compositionstart", checkFirstChange);
          urlBar.removeEventListener("paste", checkFirstChange);
        };

        urlBar.addEventListener("keydown", onKeydown);
        urlBar.addEventListener("mousedown", onDone);
        urlBar.addEventListener("blur", onDone);
        urlBar.addEventListener("compositionstart", checkFirstChange);
        urlBar.addEventListener("paste", checkFirstChange);
        break;
      }
      case "ShouldShowSearchBanner": {
        // If this is a pre-loaded private browsing new tab, then we don't want
        // to display the banner - it might never get displayed to the user
        // and we won't know, or it might get displayed at the wrong time.
        // This has the minor downside of not displaying the banner if
        // you go into private browsing via opening a link, and then opening
        // a new tab, we won't display the banner, for now, that's ok.
        if (browser.getAttribute("preloadedState") === "preloaded") {
          return null;
        }

        if (!lazy.isPrivateSearchUIEnabled || gSearchBannerShownThisSession) {
          return null;
        }
        gSearchBannerShownThisSession = true;
        const shownTimes = Services.prefs.getIntPref(SHOWN_PREF, 0);
        if (shownTimes >= lazy.MAX_SEARCH_BANNER_SHOW_COUNT) {
          return null;
        }
        Services.prefs.setIntPref(SHOWN_PREF, shownTimes + 1);
        return new Promise(resolve => {
          Services.search.getDefaultPrivate().then(engine => {
            resolve(engine.name);
          });
        });
      }
      case "SearchBannerDismissed": {
        Services.prefs.setIntPref(
          SHOWN_PREF,
          lazy.MAX_SEARCH_BANNER_SHOW_COUNT
        );
        break;
      }
      case "ShouldShowPromo": {
        return BrowserUtils.shouldShowPromo(
          BrowserUtils.PromoType[aMessage.data.type]
        );
      }
      case "SpecialMessageActionDispatch": {
        lazy.SpecialMessageActions.handleAction(aMessage.data, browser);
        break;
      }
      case "IsPromoBlocked": {
        return !ASRouter.isUnblockedMessage(aMessage.data);
      }
    }

    return undefined;
  }
}