// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Use the <code>chrome.scripting</code> API to execute script in different
// contexts.
namespace scripting {
callback InjectedFunction = void();
// The origin for a style change.
// See <a href="https://developer.mozilla.org/en-US/docs/Glossary/Style_origin">style origins</a>
// for more info.
enum StyleOrigin {
AUTHOR,
USER
};
// The JavaScript world for a script to execute within.
enum ExecutionWorld {
// Specifies the isolated world, which is the execution environment unique
// to this extension.
ISOLATED,
// Specifies the main world of the DOM, which is the execution environment
// shared with the host page's JavaScript.
MAIN
};
dictionary InjectionTarget {
// The ID of the tab into which to inject.
long tabId;
// The <a href="https://developer.chrome.com/extensions/webNavigation#frame_ids">IDs</a>
// of specific frames to inject into.
long[]? frameIds;
// The <a href="https://developer.chrome.com/extensions/webNavigation#document_ids">IDs</a>
// of specific documentIds to inject into. This must not be set if
// <code>frameIds</code> is set.
DOMString[]? documentIds;
// Whether the script should inject into all frames within the tab. Defaults
// to false.
// This must not be true if <code>frameIds</code> is specified.
boolean? allFrames;
};
dictionary ScriptInjection {
// A JavaScript function to inject. This function will be serialized, and
// then deserialized for injection. This means that any bound parameters
// and execution context will be lost.
// Exactly one of <code>files</code> or <code>func</code> must be
// specified.
[serializableFunction]InjectedFunction? func;
// The arguments to pass to the provided function. This is only valid if
// the <code>func</code> parameter is specified. These arguments must be
// JSON-serializable.
any[]? args;
// We used to call the injected function `function`, but this is
// incompatible with JavaScript's object declaration shorthand (see
// https://crbug.com/1166438). We leave this silently in for backwards
// compatibility.
// TODO(devlin): Remove this in M95.
[nodoc, serializableFunction]InjectedFunction? function;
// The path of the JS or CSS files to inject, relative to the extension's
// root directory.
// Exactly one of <code>files</code> or <code>func</code> must be
// specified.
DOMString[]? files;
// Details specifying the target into which to inject the script.
InjectionTarget target;
// The JavaScript "world" to run the script in. Defaults to
// <code>ISOLATED</code>.
ExecutionWorld? world;
// Whether the injection should be triggered in the target as soon as
// possible. Note that this is not a guarantee that injection will occur
// prior to page load, as the page may have already loaded by the time the
// script reaches the target.
boolean? injectImmediately;
};
dictionary CSSInjection {
// Details specifying the target into which to insert the CSS.
InjectionTarget target;
// A string containing the CSS to inject.
// Exactly one of <code>files</code> and <code>css</code> must be
// specified.
DOMString? css;
// The path of the CSS files to inject, relative to the extension's root
// directory.
// Exactly one of <code>files</code> and <code>css</code> must be
// specified.
DOMString[]? files;
// The style origin for the injection. Defaults to <code>'AUTHOR'</code>.
StyleOrigin? origin;
};
dictionary InjectionResult {
// The result of the script execution.
any? result;
// The frame associated with the injection.
long frameId;
// The document associated with the injection.
DOMString documentId;
};
// Describes a content script to be injected into a web page registered
// through this API.
dictionary RegisteredContentScript {
// The id of the content script, specified in the API call. Must not start
// with a '_' as it's reserved as a prefix for generated script IDs.
DOMString id;
// Specifies which pages this content script will be injected into. See
// <a href="develop/concepts/match-patterns">Match Patterns</a> for more
// details on the syntax of these strings. Must be specified for
// $(ref:registerContentScripts).
DOMString[]? matches;
// Excludes pages that this content script would otherwise be injected into.
// See <a href="develop/concepts/match-patterns">Match Patterns</a> for
// more details on the syntax of these strings.
DOMString[]? excludeMatches;
// The list of CSS files to be injected into matching pages. These are
// injected in the order they appear in this array, before any DOM is
// constructed or displayed for the page.
DOMString[]? css;
// The list of JavaScript files to be injected into matching pages. These
// are injected in the order they appear in this array.
DOMString[]? js;
// If specified true, it will inject into all frames, even if the frame is
// not the top-most frame in the tab. Each frame is checked independently
// for URL requirements; it will not inject into child frames if the URL
// requirements are not met. Defaults to false, meaning that only the top
// frame is matched.
boolean? allFrames;
// Indicates whether the script can be injected into frames where the URL
// contains an unsupported scheme; specifically: about:, data:, blob:, or
// filesystem:. In these cases, the URL's origin is checked to determine if
// the script should be injected. If the origin is `null` (as is the case
// for data: URLs) then the used origin is either the frame that created
// the current frame or the frame that initiated the navigation to this
// frame. Note that this may not be the parent frame.
boolean? matchOriginAsFallback;
// Specifies when JavaScript files are injected into the web page. The
// preferred and default value is <code>document_idle</code>.
extensionTypes.RunAt? runAt;
// Specifies if this content script will persist into future sessions. The
// default is true.
boolean? persistAcrossSessions;
// The JavaScript "world" to run the script in. Defaults to
// <code>ISOLATED</code>.
ExecutionWorld? world;
};
// An object used to filter content scripts for
// ${ref:getRegisteredContentScripts}.
dictionary ContentScriptFilter {
// If specified, $(ref:getRegisteredContentScripts) will only return scripts
// with an id specified in this list.
DOMString[]? ids;
};
callback ScriptInjectionCallback = void(InjectionResult[] results);
callback CSSInjectionCallback = void();
callback RegisterContentScriptsCallback = void();
callback GetRegisteredContentScriptsCallback = void(
RegisteredContentScript[] scripts);
callback UnregisterContentScriptsCallback = void();
callback UpdateContentScriptsCallback = void();
interface Properties {
// An object available for content scripts running in isolated worlds to use
// and modify as a JS object. One instance exists per frame and is shared
// between all content scripts for a given extension. This object is
// initialized when the frame is created, before document_start.
// TODO(crbug.com/40119604): Enable this once implementation is complete.
[nodoc, nocompile] static long globalParams();
};
interface Functions {
// Injects a script into a target context. By default, the script will be run
// at <code>document_idle</code>, or immediately if the page has already
// loaded. If the <code>injectImmediately</code> property is set, the script
// will inject without waiting, even if the page has not finished loading. If
// the script evaluates to a promise, the browser will wait for the promise to
// settle and return the resulting value.
// |injection|: The details of the script which to inject.
// |callback|: Invoked upon completion of the injection. The resulting
// array contains the result of execution for each frame where the
// injection succeeded.
static void executeScript(
ScriptInjection injection,
optional ScriptInjectionCallback callback);
// Inserts a CSS stylesheet into a target context.
// If multiple frames are specified, unsuccessful injections are ignored.
// |injection|: The details of the styles to insert.
// |callback|: Invoked upon completion of the insertion.
static void insertCSS(
CSSInjection injection,
optional CSSInjectionCallback callback);
// Removes a CSS stylesheet that was previously inserted by this extension
// from a target context.
// |injection|: The details of the styles to remove. Note that the
// <code>css</code>, <code>files</code>, and <code>origin</code> properties
// must exactly match the stylesheet inserted through $(ref:insertCSS).
// Attempting to remove a non-existent stylesheet is a no-op.
// |callback|: A callback to be invoked upon the completion of the removal.
static void removeCSS(
CSSInjection injection,
optional CSSInjectionCallback callback);
// Registers one or more content scripts for this extension.
// |scripts|: Contains a list of scripts to be registered. If there are
// errors during script parsing/file validation, or if the IDs specified
// already exist, then no scripts are registered.
// |callback|: A callback to be invoked once scripts have been fully
// registered or if an error has occurred.
static void registerContentScripts(
RegisteredContentScript[] scripts,
optional RegisterContentScriptsCallback callback);
// Returns all dynamically registered content scripts for this extension
// that match the given filter.
// |filter|: An object to filter the extension's dynamically registered
// scripts.
static void getRegisteredContentScripts(
optional ContentScriptFilter filter,
GetRegisteredContentScriptsCallback callback);
// Unregisters content scripts for this extension.
// |filter|: If specified, only unregisters dynamic content scripts which
// match the filter. Otherwise, all of the extension's dynamic content
// scripts are unregistered.
// |callback|: A callback to be invoked once scripts have been unregistered
// or if an error has occurred.
static void unregisterContentScripts(
optional ContentScriptFilter filter,
optional UnregisterContentScriptsCallback callback);
// Updates one or more content scripts for this extension.
// |scripts|: Contains a list of scripts to be updated. A property is only
// updated for the existing script if it is specified in this object. If
// there are errors during script parsing/file validation, or if the IDs
// specified do not correspond to a fully registered script, then no scripts
// are updated.
// |callback|: A callback to be invoked once scripts have been updated or
// if an error has occurred.
static void updateContentScripts(
RegisteredContentScript[] scripts,
optional RegisterContentScriptsCallback callback);
};
};