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Diffstat (limited to 'js/xpconnect/idl/xpccomponents.idl')
| -rw-r--r-- | js/xpconnect/idl/xpccomponents.idl | 732 |
1 files changed, 732 insertions, 0 deletions
diff --git a/js/xpconnect/idl/xpccomponents.idl b/js/xpconnect/idl/xpccomponents.idl new file mode 100644 index 000000000..711ea4c64 --- /dev/null +++ b/js/xpconnect/idl/xpccomponents.idl @@ -0,0 +1,732 @@ +/* -*- Mode: IDL; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* 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/. */ + +#include "nsISupports.idl" + +%{C++ +#include "jspubtd.h" +%} + +interface xpcIJSWeakReference; +interface nsIAddonInterposition; +interface nsIClassInfo; +interface nsIComponentManager; +interface nsICycleCollectorListener; +interface nsIJSCID; +interface nsIJSIID; +interface nsIPrincipal; +interface nsIStackFrame; + +/** +* interface of Components.interfacesByID +* (interesting stuff only reflected into JavaScript) +*/ +[scriptable, uuid(f235ef76-9919-478b-aa0f-282d994ddf76)] +interface nsIXPCComponents_InterfacesByID : nsISupports +{ +}; + +/** +* interface of Components.interfaces +* (interesting stuff only reflected into JavaScript) +*/ +[scriptable, uuid(b8c31bba-79db-4a1d-930d-4cdd68713f9e)] +interface nsIXPCComponents_Interfaces : nsISupports +{ +}; + +/** +* interface of Components.classes +* (interesting stuff only reflected into JavaScript) +*/ +[scriptable, uuid(978ff520-d26c-11d2-9842-006008962422)] +interface nsIXPCComponents_Classes : nsISupports +{ +}; + +/** +* interface of Components.classesByID +* (interesting stuff only reflected into JavaScript) +*/ +[scriptable, uuid(336a9590-4d19-11d3-9893-006008962422)] +interface nsIXPCComponents_ClassesByID : nsISupports +{ +}; + +/** +* interface of Components.results +* (interesting stuff only reflected into JavaScript) +*/ +[scriptable, uuid(2fc229a0-5860-11d3-9899-006008962422)] +interface nsIXPCComponents_Results : nsISupports +{ +}; + +/** +* interface of Components.ID +* (interesting stuff only reflected into JavaScript) +*/ +[scriptable, uuid(7994a6e0-e028-11d3-8f5d-0010a4e73d9a)] +interface nsIXPCComponents_ID : nsISupports +{ +}; + +/** +* interface of Components.Exception +* (interesting stuff only reflected into JavaScript) +*/ +[scriptable, uuid(5bf039c0-e028-11d3-8f5d-0010a4e73d9a)] +interface nsIXPCComponents_Exception : nsISupports +{ +}; + +/** +* interface of Components.Constructor +* (interesting stuff only reflected into JavaScript) +*/ +[scriptable, uuid(88655640-e028-11d3-8f5d-0010a4e73d9a)] +interface nsIXPCComponents_Constructor : nsISupports +{ +}; + +/** +* interface of object returned by Components.Constructor +* (additional interesting stuff only reflected into JavaScript) +*/ +[scriptable, uuid(c814ca20-e0dc-11d3-8f5f-0010a4e73d9a)] +interface nsIXPCConstructor : nsISupports +{ + readonly attribute nsIJSCID classID; + readonly attribute nsIJSIID interfaceID; + readonly attribute string initializer; +}; + +/** +* interface of object returned by Components.utils.Sandbox. +*/ +[scriptable, uuid(4f8ae0dc-d266-4a32-875b-6a9de71a8ce9)] +interface nsIXPCComponents_utils_Sandbox : nsISupports +{ +}; + +/** + * interface for callback to be passed to Cu.schedulePreciseGC + */ +[scriptable, function, uuid(71000535-b0fd-44d1-8ce0-909760e3953c)] +interface ScheduledGCCallback : nsISupports +{ + void callback(); +}; + +/** +* interface of Components.utils +*/ +[scriptable, uuid(86003fe3-ee9a-4620-91dc-eef8b1e58815)] +interface nsIXPCComponents_Utils : nsISupports +{ + + /* reportError is designed to be called from JavaScript only. + * + * It will report a JS Error object to the JS console, and return. It + * is meant for use in exception handler blocks which want to "eat" + * an exception, but still want to report it to the console. + * + * It must be called with one param, usually an object which was caught by + * an exception handler. If it is not a JS error object, the parameter + * is converted to a string and reported as a new error. + */ + [implicit_jscontext] void reportError(in jsval error); + + readonly attribute nsIXPCComponents_utils_Sandbox Sandbox; + + /* + * evalInSandbox is designed to be called from JavaScript only. + * + * evalInSandbox evaluates the provided source string in the given sandbox. + * It returns the result of the evaluation to the caller. + * + * var s = new C.u.Sandbox("http://www.mozilla.org"); + * var res = C.u.evalInSandbox("var five = 5; 2 + five", s); + * var outerFive = s.five; + * s.seven = res; + * var thirtyFive = C.u.evalInSandbox("five * seven", s); + */ + [implicit_jscontext,optional_argc] + jsval evalInSandbox(in AString source, in jsval sandbox, + [optional] in jsval version, + [optional] in AUTF8String filename, + [optional] in long lineNo); + + /* + * getSandboxAddonId is designed to be called from JavaScript only. + * + * getSandboxAddonId retrieves the add-on ID associated with + * a sandbox object. It will return undefined if there + * is no add-on ID attached to the sandbox. + * + * var s = C.u.Sandbox(..., { addonId: "123" }); + * var id = C.u.getSandboxAddonId(s); + */ + [implicit_jscontext] + jsval getSandboxAddonId(in jsval sandbox); + + /* + * getSandboxMetadata is designed to be called from JavaScript only. + * + * getSandboxMetadata retrieves the metadata associated with + * a sandbox object. It will return undefined if there + * is no metadata attached to the sandbox. + * + * var s = C.u.Sandbox(..., { metadata: "metadata" }); + * var metadata = C.u.getSandboxMetadata(s); + */ + [implicit_jscontext] + jsval getSandboxMetadata(in jsval sandbox); + + /* + * setSandboxMetadata is designed to be called from JavaScript only. + * + * setSandboxMetadata sets the metadata associated with + * a sandbox object. + * + * Note that the metadata object will be copied before being used. + * The copy will be performed using the structured clone algorithm. + * Note that this algorithm does not support reflectors and + * it will throw if it encounters them. + */ + [implicit_jscontext] + void setSandboxMetadata(in jsval sandbox, in jsval metadata); + + /* + * import is designed to be called from JavaScript only. + * + * Synchronously loads and evaluates the js file located at + * 'registryLocation' with a new, fully privileged global object. + * + * If 'targetObj' is specified and equal to null, returns the + * module's global object. Otherwise (if 'targetObj' is not + * specified, or 'targetObj' is != null) looks for a property + * 'EXPORTED_SYMBOLS' on the new global object. 'EXPORTED_SYMBOLS' + * is expected to be an array of strings identifying properties on + * the global object. These properties will be installed as + * properties on 'targetObj', or, if 'targetObj' is not specified, + * on the caller's global object. If 'EXPORTED_SYMBOLS' is not + * found, an error is thrown. + * + * @param resourceURI A resource:// URI string to load the module from. + * @param targetObj the object to install the exported properties on. + * If this parameter is a primitive value, this method throws + * an exception. + * @returns the module code's global object. + * + * The implementation maintains a hash of registryLocation->global obj. + * Subsequent invocations of importModule with 'registryLocation' + * pointing to the same file will not cause the module to be re-evaluated, + * but the symbols in EXPORTED_SYMBOLS will be exported into the + * specified target object and the global object returned as above. + * + * (This comment is duplicated from xpcIJSModuleLoader.) + */ + [implicit_jscontext,optional_argc] + jsval import(in AUTF8String aResourceURI, [optional] in jsval targetObj); + + /** + * Returns true if the js file located at 'registryLocation' location has + * been loaded previously via the import method above. Returns false + * otherwise. + * + * @param resourceURI A resource:// URI string representing the location of + * the js file to be checked if it is already loaded or not. + * @returns boolean, true if the js file has been loaded via import. false + * otherwise + */ + boolean isModuleLoaded(in AUTF8String aResourceURI); + + /* + * Unloads the JS module at 'registryLocation'. Existing references to the + * module will continue to work but any subsequent import of the module will + * reload it and give new reference. If the JS module hasn't yet been + * imported then this method will do nothing. + * + * @param resourceURI A resource:// URI string to unload the module from. + */ + void unload(in AUTF8String registryLocation); + + /* + * Imports global properties (like DOM constructors) into the scope, defining + * them on the caller's global. aPropertyList should be an array of property + * names. + * + * See xpc::GlobalProperties::Parse for the current list of supported + * properties. + */ + [implicit_jscontext] + void importGlobalProperties(in jsval aPropertyList); + + /* + * To be called from JS only. + * + * Return a weak reference for the given JS object. + */ + [implicit_jscontext] + xpcIJSWeakReference getWeakReference(in jsval obj); + + /* + * To be called from JS only. + * + * Force an immediate garbage collection cycle. + */ + void forceGC(); + + /* + * To be called from JS only. + * + * Force an immediate cycle collection cycle. + */ + void forceCC([optional] in nsICycleCollectorListener aListener); + + /* + * To be called from JS only. + * + * If any incremental CC is in progress, finish it. For testing. + */ + void finishCC(); + + /* + * To be called from JS only. + * + * Do some cycle collector work, with the given work budget. + * The cost of calling Traverse() on a single object is set as 1. + * For testing. + */ + void ccSlice(in long long budget); + + /* + * To be called from JS only. + * + * Return the longest cycle collector slice time since the last + * time clearMaxCCTime() was called. + */ + long getMaxCCSliceTimeSinceClear(); + + /* + * To be called from JS only. + * + * Reset the internal max slice time value used for + * getMaxCCSliceTimeSinceClear(). + */ + void clearMaxCCTime(); + + /* + * To be called from JS only. + * + * Force an immediate shrinking garbage collection cycle. + */ + void forceShrinkingGC(); + + /* + * Schedule a garbage collection cycle for a point in the future when no JS + * is running. Call the provided function once this has occurred. + */ + void schedulePreciseGC(in ScheduledGCCallback callback); + + /* + * Schedule a shrinking garbage collection cycle for a point in the future + * when no JS is running. Call the provided function once this has occured. + */ + void schedulePreciseShrinkingGC(in ScheduledGCCallback callback); + + /* + * In a debug build, unlink any ghost windows. This is only for debugging + * leaks, and can cause bad things to happen if called. + */ + void unlinkGhostWindows(); + + [implicit_jscontext] + jsval getJSTestingFunctions(); + + /* + * To be called from JS only. + * + * Call 'function', using the provided stack as the async stack responsible + * for the call, and propagate its return value or the exception it throws. + * The function is called with no arguments, and 'this' is 'undefined'. + * + * The code in the function will see the given stack frame as the + * asyncCaller of its own stack frame, instead of the current caller. + */ + [implicit_jscontext] + jsval callFunctionWithAsyncStack(in jsval function, in nsIStackFrame stack, + in AString asyncCause); + + /* + * To be called from JS only. + * + * Returns the global object with which the given object is associated. + * + * @param obj The JavaScript object whose global is to be gotten. + * @return the corresponding global. + */ + [implicit_jscontext] + jsval getGlobalForObject(in jsval obj); + + /* + * To be called from JS only. + * + * Returns the true if the object is a (scripted) proxy. + * NOTE: Security wrappers are unwrapped first before the check. + */ + [implicit_jscontext] + boolean isProxy(in jsval vobject); + + /* + * To be called from JS only. + * + * Instead of simply wrapping a function into another compartment, + * this helper function creates a native function in the target + * compartment and forwards the call to the original function. + * That call will be different than a regular JS function call in + * that, the |this| is left unbound, and all the non-native JS + * object arguments will be cloned using the structured clone + * algorithm. + * The return value is the new forwarder function, wrapped into + * the caller's compartment. + * The 3rd argument is an optional options object: + * - defineAs: the name of the property that will + * be set on the target scope, with + * the forwarder function as the value. + */ + [implicit_jscontext] + jsval exportFunction(in jsval vfunction, in jsval vscope, [optional] in jsval voptions); + + /* + * To be called from JS only. + * + * Returns an object created in |vobj|'s compartment. + * If defineAs property on the options object is a non-null ID, + * the new object will be added to vobj as a property. Also, the + * returned new object is always automatically waived (see waiveXrays). + */ + [implicit_jscontext] + jsval createObjectIn(in jsval vobj, [optional] in jsval voptions); + + /* + * To be called from JS only. + * + * Ensures that all functions come from vobj's scope (and aren't cross + * compartment wrappers). + */ + [implicit_jscontext] + void makeObjectPropsNormal(in jsval vobj); + + /** + * Determines whether this object is backed by a DeadObjectProxy. + * + * Dead-wrapper objects hold no other objects alive (they have no outgoing + * reference edges) and will throw if you touch them (e.g. by + * reading/writing a property). + */ + bool isDeadWrapper(in jsval obj); + + /** + * Determines whether this object is a cross-process wrapper. + */ + bool isCrossProcessWrapper(in jsval obj); + + /** + * CPOWs can have user data attached to them. This data originates + * in the local process via the + * nsIRemoteTagService.getRemoteObjectTag method. It's sent along + * with the CPOW to the remote process, where it can be fetched + * with this function, getCrossProcessWrapperTag. + */ + ACString getCrossProcessWrapperTag(in jsval obj); + + /** + * If CPOWs are disabled for browser code via the + * dom.ipc.cpows.forbid-unsafe-from-browser preferences, then only + * add-ons can use CPOWs. This function allows a non-addon scope + * to opt into CPOWs. It's necessary for the implementation of + * RemoteAddonsParent.jsm. + */ + void permitCPOWsInScope(in jsval obj); + + /* + * To be called from JS only. This is for Gecko internal use only, and may + * disappear at any moment. + * + * Forces a recomputation of all wrappers in and out of the compartment + * containing |vobj|. If |vobj| is not an object, all wrappers system-wide + * are recomputed. + */ + [implicit_jscontext] + void recomputeWrappers([optional] in jsval vobj); + + /* + * To be called from JS only. This is for Gecko internal use only, and may + * disappear at any moment. + * + * Enables Xray vision for same-compartment access for the compartment + * indicated by |vscope|. All outgoing wrappers are recomputed. + */ + [implicit_jscontext] + void setWantXrays(in jsval vscope); + + /* + * For gecko internal automation use only. Calling this in production code + * would result in security vulnerabilities, so it will crash if used outside + * of automation. + */ + [implicit_jscontext] + void forcePermissiveCOWs(); + + /* + * Forces the usage of a privileged |Components| object for a potentially- + * unprivileged scope. This will crash if used outside of automation. + */ + [implicit_jscontext] + void forcePrivilegedComponentsForScope(in jsval vscope); + + /* + * This seemingly-paradoxical API allows privileged code to explicitly give + * unprivileged code a reference to its own Components object (whereas it's + * normally hidden away on a scope chain visible only to XBL methods). See + * also SpecialPowers.getComponents. + */ + [implicit_jscontext] + jsval getComponentsForScope(in jsval vscope); + + /* + * Dispatches a runnable to the current/main thread. If |scope| is passed, + * the runnable will be dispatch in the compartment of |scope|, which + * affects which error reporter gets called. + */ + [implicit_jscontext] + void dispatch(in jsval runnable, [optional] in jsval scope); + + /* + * To be called from JS only. + * + * These are the set of JSContext options that privileged script + * is allowed to control for the purposes of testing. These + * options should be kept in sync with what's controllable in the + * jsshell and by setting prefs in nsJSEnvironment. + * + * NB: Assume that getting any of these attributes is relatively + * cheap, but setting any of them is relatively expensive. + */ + [implicit_jscontext] + attribute boolean strict; + + [implicit_jscontext] + attribute boolean werror; + + [implicit_jscontext] + attribute boolean strict_mode; + + [implicit_jscontext] + attribute boolean ion; + + [implicit_jscontext] + void setGCZeal(in long zeal); + + [implicit_jscontext] + void nukeSandbox(in jsval obj); + + /* + * API to dynamically block script for a given global. This takes effect + * immediately, unlike other APIs that only affect newly-created globals. + * + * The machinery here maintains a counter, and allows script only if each + * call to blockScriptForGlobal() has been matched with a call to + * unblockScriptForGlobal(). The caller _must_ make sure never to call + * unblock() more times than it calls block(), since that could potentially + * interfere with another consumer's script blocking. + */ + + [implicit_jscontext] + void blockScriptForGlobal(in jsval global); + + [implicit_jscontext] + void unblockScriptForGlobal(in jsval global); + + /** + * Check whether the given object is an XrayWrapper. + */ + bool isXrayWrapper(in jsval obj); + + /** + * Waive Xray on a given value. Identity op for primitives. + */ + [implicit_jscontext] + jsval waiveXrays(in jsval aVal); + + /** + * Strip off Xray waivers on a given value. Identity op for primitives. + */ + [implicit_jscontext] + jsval unwaiveXrays(in jsval aVal); + + /** + * Gets the name of the JSClass of the object. + * + * if |aUnwrap| is true, all wrappers are unwrapped first. Unless you're + * specifically trying to detect whether the object is a proxy, this is + * probably what you want. + */ + [implicit_jscontext] + string getClassName(in jsval aObj, in bool aUnwrap); + + /** + * Get a DOM classinfo for the given classname. Only some class + * names are supported. + */ + nsIClassInfo getDOMClassInfo(in AString aClassName); + + /** + * Gets the incument global for the execution of this function. For internal + * and testing use only. + * + * If |callback| is passed, it is invoked with the incumbent global as its + * sole argument. This allows the incumbent global to be measured in callback + * environments with no scripted frames on the stack. + */ + [implicit_jscontext] + jsval getIncumbentGlobal([optional] in jsval callback); + + /** + * Forces the generation of an XPCWrappedJS for a given object. For internal + * and testing use only. This is only useful to set up wrapper map conditions + * for a testcase. The return value is not an XPCWrappedJS itself, but an + * opaque nsISupports holder that keeps the underlying XPCWrappedJS alive. + * + * if |scope| is passed, the XPCWrappedJS is generated in the scope of that object. + */ + [implicit_jscontext] + nsISupports generateXPCWrappedJS(in jsval obj, [optional] in jsval scope); + + /** + * Retrieve the last time, in microseconds since epoch, that a given + * watchdog-related event occured. + * + * Valid categories: + * "ContextStateChange" - Context switching between active and inactive states + * "WatchdogWakeup" - Watchdog waking up from sleeping + * "WatchdogHibernateStart" - Watchdog begins hibernating + * "WatchdogHibernateStop" - Watchdog stops hibernating + */ + PRTime getWatchdogTimestamp(in AString aCategory); + + [implicit_jscontext] + jsval getJSEngineTelemetryValue(); + + /* + * Clone an object into a scope. + * The 3rd argument is an optional options object: + * - cloneFunctions: boolean. If true, functions in the value are + * wrapped in a function forwarder that appears to be a native function in + * the content scope. Defaults to false. + * - wrapReflectors: boolean. If true, DOM objects are passed through the + * clone directly with cross-compartment wrappers. Otherwise, the clone + * fails when such an object is encountered. Defaults to false. + */ + [implicit_jscontext] + jsval cloneInto(in jsval value, in jsval scope, [optional] in jsval options); + + /* + * When C++-Implemented code does security checks, it can generally query + * the subject principal (i.e. the principal of the most-recently-executed + * script) in order to determine the responsible party. However, when an API + * is implemented in JS, this doesn't work - the most-recently-executed + * script is always the System-Principaled API implementation. So we need + * another mechanism. + * + * Hence the notion of the "WebIDL Caller". If the current Entry Script on + * the Script Settings Stack represents the invocation of JS-implemented + * WebIDL, this API returns the principal of the caller at the time + * of invocation. Otherwise (i.e. outside of JS-implemented WebIDL), this + * function throws. If it throws, you probably shouldn't be using it. + */ + nsIPrincipal getWebIDLCallerPrincipal(); + + /* + * Gets the principal of a script object, after unwrapping any cross- + * compartment wrappers. + */ + [implicit_jscontext] + nsIPrincipal getObjectPrincipal(in jsval obj); + + /* + * Gets the URI or identifier string associated with an object's + * compartment (the same one used by the memory reporter machinery). + * + * Unwraps cross-compartment wrappers first. + * + * The string formats and values may change at any time. Do not depend on + * this from addon code. + */ + [implicit_jscontext] + ACString getCompartmentLocation(in jsval obj); + + [implicit_jscontext] + void setAddonInterposition(in ACString addonId, in nsIAddonInterposition interposition); + + /* + * Enables call interpositions from addon scopes to any functions in the scope of |target|. + */ + [implicit_jscontext] + void setAddonCallInterposition(in jsval target); + + [implicit_jscontext] + void allowCPOWsInAddon(in ACString addonId, in bool allow); + + /* + * Return a fractional number of milliseconds from process + * startup, measured with a monotonic clock. + */ + double now(); +}; + +/** +* Interface for the 'Components' object. +* +* The first interface contains things that are available to non-chrome XBL code +* that runs in a scope with an nsExpandedPrincipal. The second interface +* includes members that are only exposed to chrome. +*/ + +[scriptable, uuid(eeeada2f-86c0-4609-b2bf-4bf2351b1ce6)] +interface nsIXPCComponentsBase : nsISupports +{ + readonly attribute nsIXPCComponents_Interfaces interfaces; + readonly attribute nsIXPCComponents_InterfacesByID interfacesByID; + readonly attribute nsIXPCComponents_Results results; + + boolean isSuccessCode(in nsresult result); + +}; + +[scriptable, uuid(aa28aaf6-70ce-4b03-9514-afe43c7dfda8)] +interface nsIXPCComponents : nsIXPCComponentsBase +{ + readonly attribute nsIXPCComponents_Classes classes; + readonly attribute nsIXPCComponents_ClassesByID classesByID; + // Will return null if there is no JS stack right now. + readonly attribute nsIStackFrame stack; + readonly attribute nsIComponentManager manager; + readonly attribute nsIXPCComponents_Utils utils; + + readonly attribute nsIXPCComponents_ID ID; + readonly attribute nsIXPCComponents_Exception Exception; + readonly attribute nsIXPCComponents_Constructor Constructor; + + [implicit_jscontext] + // A javascript component can set |returnCode| to specify an nsresult to + // be returned without throwing an exception. + attribute jsval returnCode; + + /* @deprecated Use Components.utils.reportError instead. */ + [deprecated, implicit_jscontext] void reportError(in jsval error); +}; |