gecko-dev/dom/ipc/PBrowser.ipdl

799 lines
29 KiB
C++

/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */
/* vim: set sw=4 ts=8 et tw=80 ft=cpp : */
/* 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 protocol PBlob;
include protocol PColorPicker;
include protocol PContent;
include protocol PContentBridge;
include protocol PDocAccessible;
include protocol PDocumentRenderer;
include protocol PFilePicker;
include protocol PIndexedDBPermissionRequest;
include protocol PRenderFrame;
include protocol PPluginWidget;
include DOMTypes;
include JavaScriptTypes;
include URIParams;
include BrowserConfiguration;
using class IPC::Principal from "mozilla/dom/PermissionMessageUtils.h";
using class mozilla::gfx::Matrix from "mozilla/gfx/Matrix.h";
using struct gfxSize from "gfxPoint.h";
using CSSRect from "Units.h";
using CSSSize from "Units.h";
using mozilla::LayoutDeviceIntRect from "Units.h";
using mozilla::LayoutDeviceIntPoint from "Units.h";
using mozilla::ScreenIntPoint from "Units.h";
using ScreenIntSize from "Units.h";
using struct mozilla::layers::FrameMetrics from "FrameMetrics.h";
using struct mozilla::layers::ScrollableLayerGuid from "FrameMetrics.h";
using struct mozilla::layers::ZoomConstraints from "FrameMetrics.h";
using mozilla::layers::MaybeZoomConstraints from "FrameMetrics.h";
using FrameMetrics::ViewID from "FrameMetrics.h";
using struct mozilla::void_t from "ipc/IPCMessageUtils.h";
using mozilla::WindowsHandle from "ipc/IPCMessageUtils.h";
using nscolor from "nsColor.h";
using class mozilla::WidgetCompositionEvent from "ipc/nsGUIEventIPC.h";
using struct mozilla::widget::IMENotification from "nsIWidget.h";
using struct nsIMEUpdatePreference from "nsIWidget.h";
using mozilla::gfx::IntSize from "mozilla/gfx/Point.h";
using mozilla::gfx::IntPoint from "mozilla/gfx/Point.h";
using mozilla::gfx::IntRect from "mozilla/gfx/Rect.h";
using class mozilla::ContentCache from "ipc/nsGUIEventIPC.h";
using class mozilla::WidgetKeyboardEvent from "ipc/nsGUIEventIPC.h";
using class mozilla::WidgetMouseEvent from "ipc/nsGUIEventIPC.h";
using class mozilla::WidgetWheelEvent from "ipc/nsGUIEventIPC.h";
using class mozilla::WidgetDragEvent from "ipc/nsGUIEventIPC.h";
using struct nsRect from "nsRect.h";
using class mozilla::WidgetSelectionEvent from "ipc/nsGUIEventIPC.h";
using class mozilla::WidgetTouchEvent from "ipc/nsGUIEventIPC.h";
using class mozilla::WidgetPluginEvent from "ipc/nsGUIEventIPC.h";
using struct mozilla::dom::RemoteDOMEvent from "mozilla/dom/TabMessageUtils.h";
using mozilla::dom::ScreenOrientationInternal from "mozilla/dom/ScreenOrientation.h";
using struct mozilla::layers::TextureFactoryIdentifier from "mozilla/layers/CompositorTypes.h";
using mozilla::CSSPoint from "Units.h";
using mozilla::CSSToScreenScale from "Units.h";
using mozilla::CommandInt from "mozilla/EventForwards.h";
using mozilla::Modifiers from "mozilla/EventForwards.h";
using mozilla::layers::GeckoContentController::APZStateChange from "mozilla/layers/GeckoContentController.h";
using mozilla::WritingMode from "mozilla/WritingModes.h";
using mozilla::layers::AsyncDragMetrics from "mozilla/layers/AsyncDragMetrics.h";
using mozilla::layers::TouchBehaviorFlags from "mozilla/layers/APZUtils.h";
using nsIWidget::TouchPointerState from "nsIWidget.h";
using struct LookAndFeelInt from "mozilla/widget/WidgetMessageUtils.h";
using class mozilla::dom::ipc::StructuredCloneData from "ipc/IPCMessageUtils.h";
using mozilla::EventMessage from "mozilla/EventForwards.h";
using nsEventStatus from "mozilla/EventForwards.h";
using nsSizeMode from "nsIWidgetListener.h";
namespace mozilla {
namespace dom {
struct NativeKeyBinding
{
CommandInt[] singleLineCommands;
CommandInt[] multiLineCommands;
CommandInt[] richTextCommands;
};
union MaybeNativeKeyBinding
{
NativeKeyBinding;
void_t;
};
struct ShowInfo
{
nsString name;
bool fullscreenAllowed;
bool isPrivate;
bool fakeShowInfo;
float dpi;
double defaultScale;
};
prio(normal upto urgent) sync protocol PBrowser
{
manager PContent or PContentBridge;
manages PColorPicker;
manages PDocAccessible;
manages PDocumentRenderer;
manages PFilePicker;
manages PIndexedDBPermissionRequest;
manages PRenderFrame;
manages PPluginWidget;
both:
AsyncMessage(nsString aMessage, ClonedMessageData aData, CpowEntry[] aCpows,
Principal aPrincipal);
/**
* Create a layout frame (encapsulating a remote layer tree) for
* the page that is currently loaded in the <browser>.
*/
PRenderFrame();
parent:
/**
* Tell the parent process a new accessible document has been created.
* aParentDoc is the accessible document it was created in if any, and
* aParentAcc is the id of the accessible in that document the new document
* is a child of.
*/
PDocAccessible(nullable PDocAccessible aParentDoc, uint64_t aParentAcc);
/*
* Creates a new remoted nsIWidget connection for windowed plugins
* in e10s mode. This is always initiated from the child in response
* to windowed plugin creation.
*/
sync PPluginWidget();
/**
* Return native data of root widget
*/
sync GetWidgetNativeData() returns (WindowsHandle value);
/**
* Sends an NS_NATIVE_CHILD_OF_SHAREABLE_WINDOW to be adopted by the
* widget's shareable window on the chrome side. Only used on Windows.
*/
async SetNativeChildOfShareableWindow(uintptr_t childWindow);
/**
* When content moves focus from a native plugin window that's a child
* of the native browser window we need to move native focus to the
* browser. Otherwise the plugin window will never relinquish focus.
*/
sync DispatchFocusToTopLevelWindow();
parent:
/**
* When child sends this message, parent should move focus to
* the next or previous focusable element or document.
*/
MoveFocus(bool forward, bool forDocumentNavigation);
Event(RemoteDOMEvent aEvent);
sync SyncMessage(nsString aMessage, ClonedMessageData aData,
CpowEntry[] aCpows, Principal aPrincipal)
returns (StructuredCloneData[] retval);
prio(high) sync RpcMessage(nsString aMessage, ClonedMessageData aData,
CpowEntry[] aCpows, Principal aPrincipal)
returns (StructuredCloneData[] retval);
/**
* Notifies chrome that there is a focus change involving an editable
* object (input, textarea, document, contentEditable. etc.)
*
* contentCache Cache of content
* notification Whole data of the notification
* preference Native widget preference for IME updates
*/
prio(urgent) sync NotifyIMEFocus(ContentCache contentCache,
IMENotification notification)
returns (nsIMEUpdatePreference preference);
/**
* Notifies chrome that there has been a change in text content
* One call can encompass both a delete and an insert operation
* Only called when NotifyIMEFocus returns PR_TRUE for mWantUpdates
*
* contentCache Cache of content
* notification Whole data of the notification
*/
prio(urgent) async NotifyIMETextChange(ContentCache contentCache,
IMENotification notification);
/**
* Notifies chrome that there is a IME compostion rect updated
*
* contentCache Cache of content
*/
prio(urgent) async NotifyIMECompositionUpdate(ContentCache contentCache,
IMENotification notification);
/**
* Notifies chrome that there has been a change in selection
* Only called when NotifyIMEFocus returns PR_TRUE for mWantUpdates
*
* contentCache Cache of content
* notification Whole data of the notification
*/
prio(urgent) async NotifyIMESelection(ContentCache contentCache,
IMENotification notification);
/**
* Notifies chrome of updating its content cache.
* This is useful if content is modified but we don't need to notify IME.
*
* contentCache Cache of content
*/
prio(urgent) async UpdateContentCache(ContentCache contentCache);
/**
* Notifies IME of mouse button event on a character in focused editor.
*
* Returns true if the mouse button event is consumd by IME.
*/
prio(urgent) sync NotifyIMEMouseButtonEvent(IMENotification notification)
returns (bool consumedByIME);
/**
* Notifies chrome to position change
*
* contentCache Cache of content
*/
prio(urgent) async NotifyIMEPositionChange(ContentCache contentCache,
IMENotification notification);
/**
* Requests chrome to commit or cancel composition of IME.
*
* cancel Set true if composition should be cancelled.
*
* isCommitted Returns true if the request causes composition
* being committed synchronously.
* committedString Returns committed string. The may be non-empty
* string even if cancel is true because IME may
* try to restore selected string which was
* replaced with the composition.
*/
prio(urgent) sync RequestIMEToCommitComposition(bool cancel)
returns (bool isCommitted, nsString committedString);
/**
* OnEventNeedingAckHandled() is called after a child process dispatches a
* composition event or a selection event which is sent from the parent
* process.
*
* message The message value of the handled event.
*/
prio(urgent) async OnEventNeedingAckHandled(EventMessage message);
/**
* Tells chrome to start plugin IME. If this results in a string getting
* committed, the result is in aCommitted (otherwise aCommitted is empty).
*
* aKeyboardEvent The event with which plugin IME is to be started
* panelX and panelY Location in screen coordinates of the IME input panel
* (should be just under the plugin)
* aCommitted The string committed during IME -- otherwise empty
*/
prio(urgent) sync StartPluginIME(WidgetKeyboardEvent aKeyboardEvent,
int32_t panelX, int32_t panelY)
returns (nsString aCommitted);
/**
* Tells chrome (and specifically the appropriate widget) whether or not
* a plugin (inside the widget) has the keyboard focus. Should be sent
* when the keyboard focus changes too or from a plugin.
*
* aFocused Whether or not a plugin is focused
*/
prio(urgent) async SetPluginFocused(bool aFocused);
/**
* Set IME candidate window by windowless plugin if plugin has focus.
*/
async SetCandidateWindowForPlugin(int32_t aX, int32_t aY);
/**
* When plugin event isn't consumed, call this
*/
async DefaultProcOfPluginEvent(WidgetPluginEvent aEvent);
/**
* Request that the parent process move focus to the browser's frame. If
* canRaise is true, the window can be raised if it is inactive.
*/
RequestFocus(bool canRaise);
/**
* Indicate, based on the current state, that some commands are enabled and
* some are disabled.
*/
EnableDisableCommands(nsString action,
nsCString[] enabledCommands,
nsCString[] disabledCommands);
prio(urgent) sync GetInputContext() returns (int32_t IMEEnabled,
int32_t IMEOpen);
prio(urgent) async SetInputContext(int32_t IMEEnabled,
int32_t IMEOpen,
nsString type,
nsString inputmode,
nsString actionHint,
int32_t cause,
int32_t focusChange);
sync IsParentWindowMainWidgetVisible() returns (bool visible);
/**
* Gets the DPI of the screen corresponding to this browser.
*/
sync GetDPI() returns (float value);
/**
* Gets the default scaling factor of the screen corresponding to this browser.
*/
sync GetDefaultScale() returns (double value);
/**
* Gets maximum of touch points at current device.
*/
sync GetMaxTouchPoints() returns (uint32_t value);
/**
* Set the native cursor.
* @param value
* The widget cursor to set.
* @param force
* Invalidate any locally cached cursor settings and force an
* update.
*/
SetCursor(uint32_t value, bool force);
/**
* Set the native cursor using a custom image.
* @param cursorData
* Serialized image data.
* @param width
* Width of the image.
* @param height
* Height of the image.
* @param stride
* Stride used in the image data.
* @param format
* Image format, see gfx::SurfaceFormat for possible values.
* @param hotspotX
* Horizontal hotspot of the image, as specified by the css cursor property.
* @param hotspotY
* Vertical hotspot of the image, as specified by the css cursor property.
* @param force
* Invalidate any locally cached cursor settings and force an
* update.
*/
SetCustomCursor(nsCString cursorData, uint32_t width, uint32_t height,
uint32_t stride, uint8_t format,
uint32_t hotspotX, uint32_t hotspotY, bool force);
/**
* Used to set the current text of the status tooltip.
* Nowadays this is mainly used for link locations on hover.
*/
SetStatus(uint32_t type, nsString status);
/**
* Show/hide a tooltip when the mouse hovers over an element in the content
* document.
*/
ShowTooltip(uint32_t x, uint32_t y, nsString tooltip);
HideTooltip();
/**
* Create an asynchronous color picker on the parent side,
* but don't open it yet.
*/
PColorPicker(nsString title, nsString initialColor);
PFilePicker(nsString aTitle, int16_t aMode);
/**
* Initiates an asynchronous request for one of the special indexedDB
* permissions for the provided principal.
*
* @param principal
* The principal of the request.
*
* NOTE: The principal is untrusted in the parent process. Only
* principals that can live in the content process should
* provided.
*/
PIndexedDBPermissionRequest(Principal principal);
/**
* window.open from inside <iframe mozbrowser> is special. When the child
* process calls window.open, it creates a new PBrowser (in its own
* process), then calls BrowserFrameOpenWindow on it.
*
* The parent process gets a chance to accept or reject the window.open
* call, and windowOpened is set to true if we ended up going through with
* the window.open.
*
* @param opener the PBrowser whose content called window.open.
*/
sync BrowserFrameOpenWindow(PBrowser opener, nsString aURL,
nsString aName, nsString aFeatures)
returns (bool windowOpened);
/**
* Instructs the TabParent to forward a request to zoom to a rect given in
* CSS pixels. This rect is relative to the document.
*/
ZoomToRect(uint32_t aPresShellId, ViewID aViewId, CSSRect aRect, uint32_t aFlags);
/**
* We know for sure that content has either preventDefaulted or not
* preventDefaulted. This applies to an entire batch of touch events. It is
* expected that, if there are any DOM touch listeners, touch events will be
* batched and only processed for panning and zooming if content does not
* preventDefault.
*/
ContentReceivedInputBlock(ScrollableLayerGuid aGuid, uint64_t aInputBlockId, bool aPreventDefault);
/**
* Notifies the APZ code of the results of the gecko hit-test for a
* particular input block. Each target corresponds to one touch point in the
* touch event.
*/
SetTargetAPZC(uint64_t aInputBlockId, ScrollableLayerGuid[] aTargets);
/**
* Notifies the APZ code of the allowed touch-behaviours for a particular
* input block. Each item in the aFlags array corresponds to one touch point
* in the touch event.
*/
SetAllowedTouchBehavior(uint64_t aInputBlockId, TouchBehaviorFlags[] aFlags);
/**
* Updates the zoom constraints for a scrollable frame in this tab.
* The zoom controller code lives on the parent side and so this allows it to
* have up-to-date zoom constraints.
*/
UpdateZoomConstraints(uint32_t aPresShellId, ViewID aViewId,
MaybeZoomConstraints aConstraints);
/**
* Tells the containing widget whether the given input block results in a
* swipe. Should be called in response to a WidgetWheelEvent that has
* mFlags.mCanTriggerSwipe set on it.
*/
RespondStartSwipeEvent(uint64_t aInputBlockId, bool aStartSwipe);
/**
* Brings up the auth prompt dialog.
* Called when this is the PBrowserParent for a nested remote iframe.
* aCallbackId corresponds to an nsIAuthPromptCallback that lives in the
* root process. It will be passed back to the root process with either the
* OnAuthAvailable or OnAuthCancelled message.
*/
AsyncAuthPrompt(nsCString uri, nsString realm, uint64_t aCallbackId);
__delete__();
ReplyKeyEvent(WidgetKeyboardEvent event);
DispatchAfterKeyboardEvent(WidgetKeyboardEvent event);
sync RequestNativeKeyBindings(WidgetKeyboardEvent event)
returns (MaybeNativeKeyBinding bindings);
SynthesizeNativeKeyEvent(int32_t aNativeKeyboardLayout,
int32_t aNativeKeyCode,
uint32_t aModifierFlags,
nsString aCharacters,
nsString aUnmodifiedCharacters,
uint64_t aObserverId);
SynthesizeNativeMouseEvent(LayoutDeviceIntPoint aPoint,
uint32_t aNativeMessage,
uint32_t aModifierFlags,
uint64_t aObserverId);
SynthesizeNativeMouseMove(LayoutDeviceIntPoint aPoint,
uint64_t aObserverId);
SynthesizeNativeMouseScrollEvent(LayoutDeviceIntPoint aPoint,
uint32_t aNativeMessage,
double aDeltaX,
double aDeltaY,
double aDeltaZ,
uint32_t aModifierFlags,
uint32_t aAdditionalFlags,
uint64_t aObserverId);
SynthesizeNativeTouchPoint(uint32_t aPointerId,
TouchPointerState aPointerState,
ScreenIntPoint aPointerScreenPoint,
double aPointerPressure,
uint32_t aPointerOrientation,
uint64_t aObserverId);
SynthesizeNativeTouchTap(ScreenIntPoint aPointerScreenPoint,
bool aLongTap,
uint64_t aObserverId);
ClearNativeTouchSequence(uint64_t aObserverId);
child:
NativeSynthesisResponse(uint64_t aObserverId, nsCString aResponse);
parent:
/**
* Child informs the parent that the graphics objects are ready for
* compositing. This is sent when all pending changes have been
* sent to the compositor and are ready to be shown on the next composite.
* @see PCompositor
* @see RequestNotifyAfterRemotePaint
*/
async RemotePaintIsReady();
sync GetRenderFrameInfo(PRenderFrame aRenderFrame)
returns (TextureFactoryIdentifier textureFactoryIdentifier,
uint64_t layersId);
/**
* Sent by the child to the parent to inform it that an update to the
* dimensions has been requested, likely through win.moveTo or resizeTo
*/
async SetDimensions(uint32_t aFlags, int32_t aX, int32_t aY, int32_t aCx, int32_t aCy);
prio(high) sync DispatchWheelEvent(WidgetWheelEvent event);
prio(high) sync DispatchMouseEvent(WidgetMouseEvent event);
prio(high) sync DispatchKeyboardEvent(WidgetKeyboardEvent event);
// Start an APZ drag on a scrollbar
async StartScrollbarDrag(AsyncDragMetrics aDragMetrics);
InvokeDragSession(IPCDataTransfer[] transfers, uint32_t action,
nsCString visualData, uint32_t width, uint32_t height,
uint32_t stride, uint8_t format, int32_t dragAreaX, int32_t dragAreaY);
async AudioChannelActivityNotification(uint32_t aAudioChannel,
bool aActive);
child:
/**
* Notify the remote browser that it has been Show()n on this
* side, with the given |visibleRect|. This message is expected
* to trigger creation of the remote browser's "widget".
*
* |Show()| and |Move()| take IntSizes rather than Rects because
* content processes always render to a virtual <0, 0> top-left
* point.
*/
Show(ScreenIntSize size,
ShowInfo info,
TextureFactoryIdentifier textureFactoryIdentifier,
uint64_t layersId,
nullable PRenderFrame renderFrame,
bool parentIsActive);
LoadURL(nsCString uri, BrowserConfiguration config, ShowInfo info);
OpenURI(URIParams uri, uint32_t flags);
CacheFileDescriptor(nsString path, FileDescriptor fd);
UpdateDimensions(CSSRect rect, CSSSize size, nsSizeMode sizeMode,
ScreenOrientationInternal orientation,
LayoutDeviceIntPoint chromeDisp) compressall;
UpdateFrame(FrameMetrics frame);
// The following methods correspond to functions on the GeckoContentController
// interface in gfx/layers/apz/public/GeckoContentController.h. Refer to documentation
// in that file for these functions.
RequestFlingSnap(ViewID aScrollID, CSSPoint aDestination);
AcknowledgeScrollUpdate(ViewID aScrollId, uint32_t aScrollGeneration);
HandleDoubleTap(CSSPoint aPoint, Modifiers aModifiers, ScrollableLayerGuid aGuid);
HandleSingleTap(CSSPoint aPoint, Modifiers aModifiers, ScrollableLayerGuid aGuid);
HandleLongTap(CSSPoint point, Modifiers aModifiers, ScrollableLayerGuid aGuid, uint64_t aInputBlockId);
NotifyAPZStateChange(ViewID aViewId, APZStateChange aChange, int aArg);
NotifyFlushComplete();
/**
* Sending an activate message moves focus to the child.
*/
Activate();
Deactivate();
ParentActivated(bool aActivated);
/**
* StopIMEStateManagement() is called when the process loses focus and
* should stop managing IME state.
*/
StopIMEStateManagement();
/**
* MenuKeyboardListenerInstalled() is called when menu keyboard listener
* is installed in the parent process.
*/
MenuKeyboardListenerInstalled(bool aInstalled);
/**
* @see nsIDOMWindowUtils sendMouseEvent.
*/
MouseEvent(nsString aType,
float aX,
float aY,
int32_t aButton,
int32_t aClickCount,
int32_t aModifiers,
bool aIgnoreRootScrollFrame);
/**
* When two consecutive mouse move events would be added to the message queue,
* they are 'compressed' by dumping the oldest one.
*/
RealMouseMoveEvent(WidgetMouseEvent event, ScrollableLayerGuid aGuid, uint64_t aInputBlockId) compress;
/**
* Mouse move events with |reason == eSynthesized| are sent via a separate
* message because they do not generate DOM 'mousemove' events, and the
* 'compress' attribute on RealMouseMoveEvent() could result in a
* |reason == eReal| event being dropped in favour of an |eSynthesized|
* event, and thus a DOM 'mousemove' event to be lost.
*/
SynthMouseMoveEvent(WidgetMouseEvent event, ScrollableLayerGuid aGuid, uint64_t aInputBlockId);
RealMouseButtonEvent(WidgetMouseEvent event, ScrollableLayerGuid aGuid, uint64_t aInputBlockId);
RealKeyEvent(WidgetKeyboardEvent event, MaybeNativeKeyBinding keyBinding);
MouseWheelEvent(WidgetWheelEvent event, ScrollableLayerGuid aGuid, uint64_t aInputBlockId);
RealTouchEvent(WidgetTouchEvent aEvent,
ScrollableLayerGuid aGuid,
uint64_t aInputBlockId,
nsEventStatus aApzResponse);
RealTouchMoveEvent(WidgetTouchEvent aEvent,
ScrollableLayerGuid aGuid,
uint64_t aInputBlockId,
nsEventStatus aApzResponse);
RealDragEvent(WidgetDragEvent aEvent, uint32_t aDragAction, uint32_t aDropEffect);
PluginEvent(WidgetPluginEvent aEvent);
/**
* @see nsIDOMWindowUtils sendKeyEvent.
*/
KeyEvent(nsString aType,
int32_t aKeyCode,
int32_t aCharCode,
int32_t aModifiers,
bool aPreventDefault);
/**
* APZ notification for mouse scroll testing events.
*/
MouseScrollTestEvent(ViewID aScrollId, nsString aEvent);
CompositionEvent(WidgetCompositionEvent event);
SelectionEvent(WidgetSelectionEvent event);
/**
* Activate event forwarding from client to parent.
*/
ActivateFrameEvent(nsString aType, bool capture);
LoadRemoteScript(nsString aURL, bool aRunInGlobalScope);
/**
* Create a asynchronous request to render whatever document is
* loaded in the child when this message arrives. When the
* request finishes, PDocumentRenderer:__delete__ is sent back to
* this side to notify completion.
*
* |documentRect| is the area of the remote document to draw,
* transformed by |transform|. The rendered area will have the
* default background color |bgcolor|. |renderFlags| are the
* nsIPresShell::RenderDocument() flags to use on the remote side,
* and if true, |flushLayout| will do just that before rendering
* the document. The rendered image will be of size |renderSize|.
*/
PDocumentRenderer(nsRect documentRect, Matrix transform,
nsString bgcolor,
uint32_t renderFlags, bool flushLayout,
IntSize renderSize);
/**
* Sent by the chrome process when it no longer wants this remote
* <browser>. The child side cleans up in response, then
* finalizing its death by sending back __delete__() to the
* parent.
*/
Destroy();
/**
* Tell the child side if it has to update it's touchable region
* to the parent.
*/
SetUpdateHitRegion(bool aEnabled);
/**
* Update the child side docShell active (resource use) state.
*/
SetDocShellIsActive(bool aIsActive, bool aIsHidden);
/**
* Notify the child that it shouldn't paint the offscreen displayport.
* This is useful to speed up interactive operations over async
* scrolling performance like resize, tabswitch, pageload.
*
* Each enable call must be matched with a disable call. The child
* will remain in the suppress mode as long as there's
* a single unmatched call.
*/
async SuppressDisplayport(bool aEnabled);
/**
* Navigate by key (Tab/Shift+Tab/F6/Shift+f6).
*/
NavigateByKey(bool aForward, bool aForDocumentNavigation);
/**
* The parent (chrome thread) requests that the child inform it when
* the graphics objects are ready to display.
* @see PCompositor
* @see RemotePaintIsReady
*/
async RequestNotifyAfterRemotePaint();
/**
* Tell the child that the UI resolution changed for the containing
* window.
* To avoid some sync messages from child to parent, we also send the dpi
* and default scale with the notification.
* If we don't know the dpi and default scale, we just pass in a negative
* value (-1) but in the majority of the cases this saves us from two
* sync requests from the child to the parent.
*/
UIResolutionChanged(float dpi, double scale);
/**
* Tell the child that the system theme has changed, and that a repaint
* is necessary.
*/
ThemeChanged(LookAndFeelInt[] lookAndFeelIntCache);
/**
* Tell the child of an app's offline status
*/
AppOfflineStatus(uint32_t id, bool offline);
/**
* Tell the browser that its frame loader has been swapped
* with another.
*/
SwappedWithOtherRemoteLoader();
/**
* A potential accesskey was just pressed. Look for accesskey targets
* using the list of provided charCodes.
*
* @param charCode array of potential character codes
* @param isTrusted true if triggered by a trusted key event
* @param modifierMask indicates which accesskey modifiers are pressed
*/
HandleAccessKey(uint32_t[] charCodes, bool isTrusted, int32_t modifierMask);
/**
* Propagate a refresh to the child process
*/
AudioChannelChangeNotification(uint32_t aAudioChannel,
float aVolume,
bool aMuted);
/*
* FIXME: write protocol!
state LIVE:
send LoadURL goto LIVE;
//etc.
send Destroy goto DYING;
state DYING:
discard send blah;
// etc.
recv __delete__;
*/
};
}
}