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diff --git a/toolkit/components/messaging-system/schemas/TriggerActionSchemas/index.md b/toolkit/components/messaging-system/schemas/TriggerActionSchemas/index.md new file mode 100644 index 0000000000..1443e7a681 --- /dev/null +++ b/toolkit/components/messaging-system/schemas/TriggerActionSchemas/index.md @@ -0,0 +1,162 @@ +# Trigger Listeners + +A set of action listeners that can be used to trigger CFR messages. + +## Usage + +[As part of the CFR definition](https://searchfox.org/mozilla-central/rev/2bfe3415fb3a2fba9b1c694bc0b376365e086927/browser/components/newtab/lib/CFRMessageProvider.jsm#194) the message can register at most one trigger used to decide when the message is shown. + +Most triggers (unless otherwise specified) take the same arguments of `hosts` and/or `patterns` +used to target the message to specific websites. + +```javascript +// Optional set of hosts to filter out triggers only to certain websites +let params: string[]; +// Optional set of [match patterns](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Match_patterns) to filter out triggers only to certain websites +let patterns: string[]; +``` + +```javascript +{ + ... + // Show the message when opening mozilla.org + "trigger": { "id": "openURL", "params": ["mozilla.org", "www.mozilla.org"] } + ... +} +``` + +```javascript +{ + ... + // Show the message when opening any HTTP, HTTPS URL. + trigger: { id: "openURL", patterns: ["*://*/*"] } + ... +} +``` + +## Available trigger actions + +### `openArticleURL` + +Happens when the user loads a Reader Mode compatible webpage. + +### `openBookmarkedURL` + +Happens when the user bookmarks or navigates to a bookmarked URL. + +Does not filter by host or patterns. + +### `frequentVisits` + +Happens every time a user navigates (or switches tab to) to any of the `hosts` or `patterns` arguments +provided. Additionally it stores timestamps of these visits that are provided back to the targeting context. +They can be used inside of the targeting expression: + +```javascript +// Has at least 3 visits in the past hour +recentVisits[.timestamp > (currentDate|date - 3600 * 1000 * 1)]|length >= 3 + +``` + +```typescript +interface visit { + host: string, + timestamp: UnixTimestamp +}; +// Host and timestamp for every visit to "Host" +let recentVisits: visit[]; +``` + +### `openURL` + +Happens every time the user loads a new URL that matches the provided `hosts` or `patterns`. +During a browsing session it keeps track of visits to unique urls that can be used inside targeting expression. + +```javascript +// True on the third visit for the URL which the trigger matched on +visitsCount >= 3 +``` + +### `newSavedLogin` + +Happens every time the user saves or updates a login via the login capture doorhanger. +Provides a `type` to diferentiate between the two events that can be used in targeting. + +Does not filter by host or patterns. + +```typescript +let type = "update" | "save"; +``` + +### `contentBlocking` + +Happens at the and of a document load and for every subsequent content blocked event, or when the tracking DB service hits a milestone. + +Provides a context of the number of pages loaded in the current browsing session that can be used in targeting. + +Does not filter by host or patterns. + +The event it reports back is one of two things: + * A combination of OR-ed [nsIWebProgressListener](https://searchfox.org/mozilla-central/source/uriloader/base/nsIWebProgressListener.idl) `STATE_BLOCKED_*` flags + * A string constants, such as [`"ContentBlockingMilestone"`](https://searchfox.org/mozilla-central/rev/8a2d8d26e25ef70c98c6036612aad534b76b9815/toolkit/components/antitracking/TrackingDBService.jsm#327-334) + + +### `defaultBrowserCheck` + +Happens at startup, when opening a newtab and when navigating to about:home. +At startup it provides the result of running `DefaultBrowserCheck.willCheckDefaultBrowser` to follow existing behaviour if needed. +On the newtab/homepage it reports the `source` as `newtab`. + +```typescript +let source = "newtab" | undefined; +let willShowDefaultPrompt = boolean; +``` + +### `captivePortalLogin` + +Happens when the user successfully goes through a captive portal authentication flow. + +### `preferenceObserver` + +Watch for changes on any number of preferences. Runs when a pref is added, removed or modified. + +```js +// Register a message with the following trigger +{ + id: "preferenceObserver", + params: ["pref name"] +} +``` + +### `featureCalloutCheck` + +Happens when navigating to about:firefoxview or other about pages with Feature Callout tours enabled + +### `nthTabClosed` + +Happens when the user closes n or more tabs in a session + +```js +// Register a message with the following trigger and +// include the tabsClosedCount context variable in the targeting. +// Here, the message triggers after two or more tabs are closed. +{ + trigger: { id: "nthTabClosed" }, + targeting: "tabsClosedCount >= 2" +} +``` + +### `activityAfterIdle` + +Happens when the user resumes activity after n milliseconds of inactivity. Keyboard/mouse interactions and audio playback count as activity. The idle timer is reset when the OS is put to sleep or wakes from sleep. + +No params or patterns. The `idleForMilliseconds` context variable is available in targeting. This value represents the number of milliseconds since the last user interaction or audio playback. `60000` is the minimum value for this variable (1 minute). In the following example, the message triggers when the user returns after at least 20 minutes of inactivity. + +```js +// Register a message with the following trigger and include +// the idleForMilliseconds context variable in the targeting. +{ + trigger: { id: "activityAfterIdle" }, + targeting: "idleForMilliseconds >= 1200000" +} +``` |