gecko/dom/ipc/PBrowser.ipdl
Chris Jones 2cf7adf64a Bug 750977: Implement glue code for asynchronous panning/zooming. r=jlebar,roc,vingtetun
This is a rollup of three separate patches
 - Add nsIDocShell.asyncPanZoomEnabled. r=jlebar
 - Have BrowserElementChild service repaint requests and handle fallback synchronous scrolling (for now). r=jlebar,vingtetun
 - Glue async pan/zoom logic up between compositing, event dispatch, and repaint requests. r=roc

--HG--
rename : b2g/chrome/content/webapi.js => dom/browser-element/BrowserElementScrolling.js
2012-07-19 23:48:27 -07:00

343 lines
11 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 PContent;
include protocol PContentDialog;
include protocol PDocumentRenderer;
include protocol PContentPermissionRequest;
include protocol PRenderFrame;
include protocol POfflineCacheUpdate;
include protocol PIndexedDB;
include "gfxMatrix.h";
include "IPC/nsGUIEventIPC.h";
include "mozilla/dom/TabMessageUtils.h";
include "mozilla/layout/RenderFrameUtils.h";
include "mozilla/net/NeckoMessageUtils.h";
using IPC::URI;
using gfxMatrix;
using gfxSize;
using mozilla::layers::LayersBackend;
using mozilla::layout::ScrollingBehavior;
using mozilla::WindowsHandle;
using nscolor;
using nsCompositionEvent;
using nsIMEUpdatePreference;
using nsIntPoint;
using nsIntRect;
using nsIntSize;
using nsKeyEvent;
using nsMouseEvent;
using nsMouseScrollEvent;
using nsQueryContentEvent;
using nsRect;
using nsSelectionEvent;
using nsTextEvent;
using nsTouchEvent;
using RemoteDOMEvent;
namespace mozilla {
namespace dom {
rpc protocol PBrowser
{
manager PContent;
manages PContentDialog;
manages PDocumentRenderer;
manages PContentPermissionRequest;
manages PRenderFrame;
manages POfflineCacheUpdate;
manages PIndexedDB;
both:
AsyncMessage(nsString aMessage, nsString aJSON);
parent:
/**
* When child sends this message, parent should move focus to
* the next or previous focusable element.
*/
MoveFocus(bool forward);
Event(RemoteDOMEvent aEvent);
rpc CreateWindow() returns (PBrowser window);
sync SyncMessage(nsString aMessage, nsString aJSON)
returns (nsString[] retval);
/**
* The IME sequence number (seqno) parameter is used to make sure
* that a notification is discarded if it arrives at the chrome process
* too late. If the notification is late and we accept it, we will have
* an out-of-date view of the content process, which means events that we
* dispatch based on this out-of-date view will be wrong also.
* (see Bug 599550 and Bug 591047 comments 44, 50, and 54)
*
* Chrome increments seqno and includes it in each IME event sent to
* content, and content sends its current seqno back to chrome with each
* notification. A notification is up-to-date only if the content
* seqno is the same as the current chrome seqno, meaning no additional
* event was sent to content before the notification was received
*
* On blur, chrome returns the current seqno to content, and content
* uses it to discard subsequent events until the content seqno and
* chrome seqno-on-blur match again. These events, meant for the blurred
* textfield, are discarded to prevent events going to the wrong target
*/
/**
* Notifies chrome that there is a focus change involving an editable
* object (input, textarea, document, contentEditable. etc.)
*
* focus PR_TRUE if editable object is receiving focus
* PR_FALSE if losing focus
* preference Native widget preference for IME updates
* seqno Current seqno value on the chrome side
*/
sync NotifyIMEFocus(bool focus)
returns (nsIMEUpdatePreference preference, PRUint32 seqno);
/**
* 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
*
* offset Starting offset of the change
* end Ending offset of the range deleted
* newEnd New ending offset after insertion
*
* for insertion, offset == end
* for deletion, offset == newEnd
*/
NotifyIMETextChange(PRUint32 offset, PRUint32 end, PRUint32 newEnd);
/**
* Notifies chrome that there has been a change in selection
* Only called when NotifyIMEFocus returns PR_TRUE for mWantUpdates
*
* seqno Current seqno value on the content side
* anchor Offset where the selection started
* focus Offset where the caret is
*/
NotifyIMESelection(PRUint32 seqno, PRUint32 anchor, PRUint32 focus);
/**
* Notifies chrome to refresh its text cache
* Only called when NotifyIMEFocus returns PR_TRUE for mWantHints
*
* text The entire content of the text field
*/
NotifyIMETextHint(nsString text);
/**
* Instructs chrome to end any pending composition
*
* cancel PR_TRUE if composition should be cancelled
* composition Text to commit before ending the composition
*
* if cancel is PR_TRUE,
* widget should return empty string for composition
* if cancel is PR_FALSE,
* widget should return the current composition text
*/
sync EndIMEComposition(bool cancel) returns (nsString composition);
sync GetInputContext() returns (PRInt32 IMEEnabled, PRInt32 IMEOpen);
SetInputContext(PRInt32 IMEEnabled,
PRInt32 IMEOpen,
nsString type,
nsString actionHint,
PRInt32 cause,
PRInt32 focusChange);
/**
* Gets the DPI of the screen corresponding to this browser.
*/
sync GetDPI() returns (float value);
/**
* Return native data of root widget
*/
sync GetWidgetNativeData() returns (WindowsHandle value);
SetCursor(PRUint32 value);
SetBackgroundColor(nscolor color);
PContentPermissionRequest(nsCString aType, URI uri);
PContentDialog(PRUint32 aType, nsCString aName, nsCString aFeatures,
PRInt32[] aIntParams, nsString[] aStringParams);
/**
* Create a layout frame (encapsulating a remote layer tree) for
* the page that is currently loaded in the <browser>.
*/
sync PRenderFrame()
returns (ScrollingBehavior scrolling,
LayersBackend backend, int32_t maxTextureSize, uint64_t layersId);
/**
* Starts an offline application cache update.
* @param manifestURI
* URI of the manifest to fetch, the application cache group ID
* @param documentURI
* URI of the document that referred the manifest
* @param clientID
* The group cache version identifier to use
* @param stickDocument
* True if the update was initiated by a document load that referred
* a manifest.
* False if the update was initiated by applicationCache.update() call.
*
* Tells the update to carry the documentURI to a potential separate
* update of implicit (master) items.
*
* Why this argument? If the document was not found in an offline cache
* before load and refers a manifest and this manifest itself has not
* been changed since the last fetch, we will not do the application
* cache group update. But we must cache the document (identified by the
* documentURI). This argument will ensure that a previously uncached
* document will get cached and that we don't re-cache a document that
* has already been cached (stickDocument=false).
*/
POfflineCacheUpdate(URI manifestURI, URI documentURI, nsCString clientID,
bool stickDocument);
sync PIndexedDB(nsCString asciiOrigin)
returns (bool allowed);
/**
* 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);
__delete__();
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(nsIntSize size);
LoadURL(nsCString uri);
UpdateDimensions(nsRect rect, nsIntSize size);
UpdateFrame(nsIntRect displayPort,
nsIntPoint scrollOffset,
gfxSize resolution,
nsIntRect screenSize);
/**
* Sending an activate message moves focus to the child.
*/
Activate();
Deactivate();
/**
* @see nsIDOMWindowUtils sendMouseEvent.
*/
MouseEvent(nsString aType,
float aX,
float aY,
PRInt32 aButton,
PRInt32 aClickCount,
PRInt32 aModifiers,
bool aIgnoreRootScrollFrame);
RealMouseEvent(nsMouseEvent event);
RealKeyEvent(nsKeyEvent event);
MouseScrollEvent(nsMouseScrollEvent event);
RealTouchEvent(nsTouchEvent event);
/**
* @see nsIDOMWindowUtils sendKeyEvent.
*/
KeyEvent(nsString aType,
PRInt32 aKeyCode,
PRInt32 aCharCode,
PRInt32 aModifiers,
bool aPreventDefault);
CompositionEvent(nsCompositionEvent event);
TextEvent(nsTextEvent event);
SelectionEvent(nsSelectionEvent event);
/**
* Activate event forwarding from client to parent.
*/
ActivateFrameEvent(nsString aType, bool capture);
LoadRemoteScript(nsString aURL);
/**
* 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, gfxMatrix transform,
nsString bgcolor,
PRUint32 renderFlags, bool flushLayout,
nsIntSize 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();
/*
* FIXME: write protocol!
state LIVE:
send LoadURL goto LIVE;
//etc.
send Destroy goto DYING;
state DYING:
discard send blah;
// etc.
recv __delete__;
*/
};
}
}