зеркало из https://github.com/mozilla/gecko-dev.git
483 строки
17 KiB
C++
483 строки
17 KiB
C++
/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */
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/* vim: set sw=4 ts=8 et tw=80 ft=cpp : */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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include protocol PBlob;
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include protocol PContent;
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include protocol PContentDialog;
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include protocol PDocumentRenderer;
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include protocol PContentPermissionRequest;
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include protocol PRenderFrame;
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include protocol POfflineCacheUpdate;
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include protocol PIndexedDB;
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include DOMTypes;
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include JavaScriptTypes;
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include URIParams;
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using class IPC::Principal from "mozilla/dom/PermissionMessageUtils.h";
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using struct mozilla::gfx::Matrix from "mozilla/gfx/Matrix.h";
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using struct gfxSize from "gfxPoint.h";
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using CSSRect from "Units.h";
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using struct mozilla::layers::FrameMetrics from "FrameMetrics.h";
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using struct mozilla::layers::ScrollableLayerGuid from "FrameMetrics.h";
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using struct mozilla::layers::ZoomConstraints from "FrameMetrics.h";
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using FrameMetrics::ViewID from "FrameMetrics.h";
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using mozilla::layout::ScrollingBehavior from "mozilla/layout/RenderFrameUtils.h";
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using struct mozilla::void_t from "ipc/IPCMessageUtils.h";
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using mozilla::WindowsHandle from "ipc/IPCMessageUtils.h";
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using nscolor from "nsColor.h";
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using class mozilla::WidgetCompositionEvent from "ipc/nsGUIEventIPC.h";
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using struct nsIMEUpdatePreference from "nsIWidget.h";
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using struct nsIntPoint from "nsPoint.h";
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using struct nsIntRect from "nsRect.h";
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using struct nsIntSize from "nsSize.h";
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using class mozilla::WidgetKeyboardEvent from "ipc/nsGUIEventIPC.h";
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using class mozilla::WidgetMouseEvent from "ipc/nsGUIEventIPC.h";
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using class mozilla::WidgetWheelEvent from "ipc/nsGUIEventIPC.h";
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using struct nsRect from "nsRect.h";
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using class mozilla::WidgetSelectionEvent from "ipc/nsGUIEventIPC.h";
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using class mozilla::WidgetTextEvent from "ipc/nsGUIEventIPC.h";
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using class mozilla::WidgetTouchEvent from "ipc/nsGUIEventIPC.h";
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using struct mozilla::dom::RemoteDOMEvent from "mozilla/dom/TabMessageUtils.h";
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using mozilla::dom::ScreenOrientation from "mozilla/dom/ScreenOrientation.h";
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using struct mozilla::layers::TextureFactoryIdentifier from "mozilla/layers/CompositorTypes.h";
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using mozilla::CSSIntPoint from "Units.h";
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using mozilla::CSSToScreenScale from "Units.h";
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namespace mozilla {
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namespace dom {
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intr protocol PBrowser
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{
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manager PContent;
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manages PContentDialog;
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manages PDocumentRenderer;
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manages PContentPermissionRequest;
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manages PRenderFrame;
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manages POfflineCacheUpdate;
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manages PIndexedDB;
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both:
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AsyncMessage(nsString aMessage, ClonedMessageData aData, CpowEntry[] aCpows,
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Principal aPrincipal);
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parent:
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/**
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* When child sends this message, parent should move focus to
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* the next or previous focusable element.
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*/
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MoveFocus(bool forward);
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Event(RemoteDOMEvent aEvent);
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intr CreateWindow() returns (PBrowser window);
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sync SyncMessage(nsString aMessage, ClonedMessageData aData,
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CpowEntry[] aCpows, Principal aPrincipal)
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returns (nsString[] retval);
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rpc RpcMessage(nsString aMessage, ClonedMessageData aData,
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CpowEntry[] aCpows, Principal aPrincipal)
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returns (nsString[] retval);
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/**
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* The IME sequence number (seqno) parameter is used to make sure
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* that a notification is discarded if it arrives at the chrome process
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* too late. If the notification is late and we accept it, we will have
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* an out-of-date view of the content process, which means events that we
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* dispatch based on this out-of-date view will be wrong also.
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* (see Bug 599550 and Bug 591047 comments 44, 50, and 54)
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*
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* Chrome increments seqno and includes it in each IME event sent to
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* content, and content sends its current seqno back to chrome with each
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* notification. A notification is up-to-date only if the content
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* seqno is the same as the current chrome seqno, meaning no additional
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* event was sent to content before the notification was received
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*
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* On blur, chrome returns the current seqno to content, and content
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* uses it to discard subsequent events until the content seqno and
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* chrome seqno-on-blur match again. These events, meant for the blurred
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* textfield, are discarded to prevent events going to the wrong target
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*/
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/**
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* Notifies chrome that there is a focus change involving an editable
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* object (input, textarea, document, contentEditable. etc.)
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*
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* focus PR_TRUE if editable object is receiving focus
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* PR_FALSE if losing focus
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* preference Native widget preference for IME updates
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* seqno Current seqno value on the chrome side
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*/
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sync NotifyIMEFocus(bool focus)
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returns (nsIMEUpdatePreference preference, uint32_t seqno);
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/**
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* Notifies chrome that there has been a change in text content
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* One call can encompass both a delete and an insert operation
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* Only called when NotifyIMEFocus returns PR_TRUE for mWantUpdates
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*
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* offset Starting offset of the change
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* end Ending offset of the range deleted
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* newEnd New ending offset after insertion
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*
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* for insertion, offset == end
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* for deletion, offset == newEnd
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*/
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NotifyIMETextChange(uint32_t offset, uint32_t end, uint32_t newEnd);
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/**
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* Notifies chrome that there is a IME compostion rect updated
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*
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* offset The starting offset of this rect
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* rect The rect of first character of selected IME composition
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* caretRect The rect of IME caret
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*/
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NotifyIMESelectedCompositionRect(uint32_t offset, nsIntRect rect, nsIntRect caretRect);
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/**
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* Notifies chrome that there has been a change in selection
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* Only called when NotifyIMEFocus returns PR_TRUE for mWantUpdates
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*
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* seqno Current seqno value on the content side
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* anchor Offset where the selection started
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* focus Offset where the caret is
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*/
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NotifyIMESelection(uint32_t seqno, uint32_t anchor, uint32_t focus);
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/**
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* Notifies chrome to refresh its text cache
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* Only called when NotifyIMEFocus returns PR_TRUE for mWantHints
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*
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* text The entire content of the text field
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*/
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NotifyIMETextHint(nsString text);
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/**
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* Instructs chrome to end any pending composition
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*
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* cancel PR_TRUE if composition should be cancelled
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* composition Text to commit before ending the composition
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*
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* if cancel is PR_TRUE,
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* widget should return empty string for composition
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* if cancel is PR_FALSE,
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* widget should return the current composition text
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*/
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sync EndIMEComposition(bool cancel) returns (nsString composition);
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/**
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* Request that the parent process move focus to the browser's frame. If
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* canRaise is true, the window can be raised if it is inactive.
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*/
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RequestFocus(bool canRaise);
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sync GetInputContext() returns (int32_t IMEEnabled, int32_t IMEOpen,
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intptr_t NativeIMEContext);
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SetInputContext(int32_t IMEEnabled,
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int32_t IMEOpen,
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nsString type,
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nsString inputmode,
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nsString actionHint,
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int32_t cause,
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int32_t focusChange);
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/**
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* Gets the DPI of the screen corresponding to this browser.
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*/
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sync GetDPI() returns (float value);
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/**
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* Gets the default scaling factor of the screen corresponding to this browser.
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*/
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sync GetDefaultScale() returns (double value);
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/**
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* Return native data of root widget
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*/
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sync GetWidgetNativeData() returns (WindowsHandle value);
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SetCursor(uint32_t value);
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SetBackgroundColor(nscolor color);
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/**
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* Used to set the current text of the status tooltip.
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* Nowadays this is mainly used for link locations on hover.
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*/
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SetStatus(uint32_t type, nsString status);
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/**
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* Show/hide a tooltip when the mouse hovers over an element in the content
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* document.
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*/
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ShowTooltip(uint32_t x, uint32_t y, nsString tooltip);
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HideTooltip();
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/**
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* Initiates an asynchronous request for permission for the
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* provided principal.
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*
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* @param aType
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* The type of permission to request.
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* @param aAccess
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* Access type. "read" for example.
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* @param aPrincipal
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* The principal of the request.
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*
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* NOTE: The principal is untrusted in the parent process. Only
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* principals that can live in the content process should
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* provided.
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*/
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PContentPermissionRequest(nsCString aType, nsCString aAccess, Principal principal);
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PContentDialog(uint32_t aType, nsCString aName, nsCString aFeatures,
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int32_t[] aIntParams, nsString[] aStringParams);
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/**
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* Create a layout frame (encapsulating a remote layer tree) for
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* the page that is currently loaded in the <browser>.
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*/
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sync PRenderFrame();
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sync InitRenderFrame(PRenderFrame aFrame)
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returns (ScrollingBehavior scrolling,
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TextureFactoryIdentifier textureFactoryIdentifier, uint64_t layersId,
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bool success);
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/**
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* Starts an offline application cache update.
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* @param manifestURI
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* URI of the manifest to fetch, the application cache group ID
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* @param documentURI
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* URI of the document that referred the manifest
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* @param stickDocument
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* True if the update was initiated by a document load that referred
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* a manifest.
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* False if the update was initiated by applicationCache.update() call.
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*
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* Tells the update to carry the documentURI to a potential separate
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* update of implicit (master) items.
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*
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* Why this argument? If the document was not found in an offline cache
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* before load and refers a manifest and this manifest itself has not
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* been changed since the last fetch, we will not do the application
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* cache group update. But we must cache the document (identified by the
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* documentURI). This argument will ensure that a previously uncached
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* document will get cached and that we don't re-cache a document that
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* has already been cached (stickDocument=false).
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*/
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POfflineCacheUpdate(URIParams manifestURI, URIParams documentURI,
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bool stickDocument);
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/**
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* Sets "offline-app" permission for the principal. Called when we hit
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* a web app with the manifest attribute in <html> and
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* offline-apps.allow_by_default is set to true.
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*/
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SetOfflinePermission(Principal principal);
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sync PIndexedDB(nsCString group, nsCString asciiOrigin)
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returns (bool allowed);
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/**
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* window.open from inside <iframe mozbrowser> is special. When the child
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* process calls window.open, it creates a new PBrowser (in its own
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* process), then calls BrowserFrameOpenWindow on it.
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*
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* The parent process gets a chance to accept or reject the window.open
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* call, and windowOpened is set to true if we ended up going through with
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* the window.open.
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*
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* @param opener the PBrowser whose content called window.open.
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*/
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sync BrowserFrameOpenWindow(PBrowser opener, nsString aURL,
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nsString aName, nsString aFeatures)
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returns (bool windowOpened);
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/**
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* Instructs the TabParent to forward a request to zoom to a rect given in
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* CSS pixels. This rect is relative to the document.
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*/
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ZoomToRect(uint32_t aPresShellId, ViewID aViewId, CSSRect aRect);
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/**
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* We know for sure that content has either preventDefaulted or not
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* preventDefaulted. This applies to an entire batch of touch events. It is
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* expected that, if there are any DOM touch listeners, touch events will be
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* batched and only processed for panning and zooming if content does not
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* preventDefault.
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*/
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ContentReceivedTouch(ScrollableLayerGuid aGuid, bool aPreventDefault);
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/**
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* Updates the zoom constraints for a scrollable frame in this tab.
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* The zoom controller code lives on the parent side and so this allows it to
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* have up-to-date zoom constraints.
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*/
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UpdateZoomConstraints(uint32_t aPresShellId, ViewID aViewId, bool aIsRoot,
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ZoomConstraints aConstraints);
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__delete__();
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child:
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/**
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* Notify the remote browser that it has been Show()n on this
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* side, with the given |visibleRect|. This message is expected
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* to trigger creation of the remote browser's "widget".
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*
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* |Show()| and |Move()| take IntSizes rather than Rects because
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* content processes always render to a virtual <0, 0> top-left
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* point.
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*/
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Show(nsIntSize size);
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LoadURL(nsCString uri);
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CacheFileDescriptor(nsString path, FileDescriptor fd);
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UpdateDimensions(nsRect rect, nsIntSize size, ScreenOrientation orientation) compress;
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UpdateFrame(FrameMetrics frame) compress;
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/**
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* Requests handling of a double tap. |point| is in CSS pixels, relative to
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* the scroll offset. This message is expected to round-trip back to
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* ZoomToRect() with a rect indicating where we should zoom to.
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*/
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HandleDoubleTap(CSSIntPoint point);
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/**
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* Requests handling of a single tap. |point| is in CSS pixels, relative to
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* the scroll offset. This message is expected to send a "mousedown" and
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* "mouseup" series of events at this point.
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*/
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HandleSingleTap(CSSIntPoint point);
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/**
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* Requests handling of a long tap. |point| is in CSS pixels, relative to
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* the scroll offset. This message is expected to send a "contextmenu"
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* events at this point.
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*/
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HandleLongTap(CSSIntPoint point);
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/**
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* Requests handling of releasing a long tap. |aPoint| is in CSS pixels,
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* relative to the current scroll offset. In the case the "contextmenu"
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* event generated by the preceding HandleLongTap call was not handled,
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* this message is expected to generate a "mousedown" and "mouseup"
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* series of events
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*/
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HandleLongTapUp(CSSIntPoint point);
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/**
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* Notifies the child that the parent has begun or finished transforming
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* the visible child content area. Useful for showing/hiding scrollbars.
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*/
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NotifyTransformBegin(ViewID aViewId);
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NotifyTransformEnd(ViewID aViewId);
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/**
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* Sending an activate message moves focus to the child.
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*/
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Activate();
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Deactivate();
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/**
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* @see nsIDOMWindowUtils sendMouseEvent.
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*/
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MouseEvent(nsString aType,
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float aX,
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float aY,
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int32_t aButton,
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int32_t aClickCount,
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int32_t aModifiers,
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bool aIgnoreRootScrollFrame);
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RealMouseEvent(WidgetMouseEvent event);
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RealKeyEvent(WidgetKeyboardEvent event);
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MouseWheelEvent(WidgetWheelEvent event);
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RealTouchEvent(WidgetTouchEvent aEvent, ScrollableLayerGuid aGuid);
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// We use a separate message for touchmove events only to apply
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// compression to them.
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RealTouchMoveEvent(WidgetTouchEvent aEvent, ScrollableLayerGuid aGuid) compress;
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/**
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* @see nsIDOMWindowUtils sendKeyEvent.
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*/
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KeyEvent(nsString aType,
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int32_t aKeyCode,
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int32_t aCharCode,
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int32_t aModifiers,
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bool aPreventDefault);
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CompositionEvent(WidgetCompositionEvent event);
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TextEvent(WidgetTextEvent event);
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SelectionEvent(WidgetSelectionEvent event);
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/**
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* Activate event forwarding from client to parent.
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*/
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ActivateFrameEvent(nsString aType, bool capture);
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LoadRemoteScript(nsString aURL, bool aRunInGlobalScope);
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/**
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* Create a asynchronous request to render whatever document is
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* loaded in the child when this message arrives. When the
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* request finishes, PDocumentRenderer:__delete__ is sent back to
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* this side to notify completion.
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*
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* |documentRect| is the area of the remote document to draw,
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* transformed by |transform|. The rendered area will have the
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* default background color |bgcolor|. |renderFlags| are the
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* nsIPresShell::RenderDocument() flags to use on the remote side,
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* and if true, |flushLayout| will do just that before rendering
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* the document. The rendered image will be of size |renderSize|.
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*/
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PDocumentRenderer(nsRect documentRect, Matrix transform,
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nsString bgcolor,
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uint32_t renderFlags, bool flushLayout,
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nsIntSize renderSize);
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/**
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* Sent by the chrome process when it no longer wants this remote
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* <browser>. The child side cleans up in response, then
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* finalizing its death by sending back __delete__() to the
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* parent.
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*/
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Destroy();
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/**
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* Tell the child side if it has to update it's touchable region
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* to the parent.
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*/
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SetUpdateHitRegion(bool aEnabled);
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/*
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* FIXME: write protocol!
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state LIVE:
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send LoadURL goto LIVE;
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//etc.
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send Destroy goto DYING;
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state DYING:
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discard send blah;
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// etc.
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recv __delete__;
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*/
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};
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}
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}
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