зеркало из https://github.com/mozilla/gecko-dev.git
110 строки
3.7 KiB
Plaintext
110 строки
3.7 KiB
Plaintext
/* 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 "domstubs.idl"
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interface nsIPrincipal;
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[builtinclass, scriptable, uuid(8e49f7b0-1f98-4939-bf91-e9c39cd56434)]
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interface nsITabParent : nsISupports
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{
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void getChildProcessOffset(out int32_t aCssX, out int32_t aCssY);
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readonly attribute boolean useAsyncPanZoom;
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/**
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* Manages the docshell active state of the remote browser. Setting the
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* docShell to be active will also cause it to render layers and upload
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* them to the compositor. Setting the docShell as not active will clear
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* those layers.
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*/
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attribute boolean docShellIsActive;
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/**
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* When set to true, this tells the child to paint and upload layers to
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* the compositor. When set to false, previous layers are cleared from
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* the compositor, but only if preserveLayers is also set to false.
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*/
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attribute boolean renderLayers;
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/**
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* True if layers are being rendered and the compositor has reported
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* receiving them.
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*/
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readonly attribute boolean hasLayers;
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/**
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* As an optimisation, setting the docshell's active state to
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* inactive also triggers a layer invalidation to free up some
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* potentially unhelpful memory usage. Calling preserveLayers
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* will cause the layers to be preserved even for inactive
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* docshells.
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*/
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void preserveLayers(in boolean aPreserveLayers);
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/**
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* During interactions where painting performance
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* is more important than scrolling, we may temporarily
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* suppress the displayport. Each enable called must be matched
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* with a disable call.
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*/
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void suppressDisplayport(in bool aEnabled);
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readonly attribute uint64_t tabId;
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/**
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* The OS level process Id of the related child process.
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*/
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readonly attribute int32_t osPid;
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/**
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* Navigate by key. If aForDocumentNavigation is true, navigate by document.
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* If aForDocumentNavigation is false, navigate by element.
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*
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* If aForward is true, navigate to the first focusable element or document.
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* If aForward is false, navigate to the last focusable element or document.
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*/
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void navigateByKey(in bool aForward, in bool aForDocumentNavigation);
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readonly attribute boolean hasContentOpener;
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/**
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* True if we've previously received layers for this tab when switching to
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* it.
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*/
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readonly attribute boolean hasPresented;
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/**
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* Ensures that the content process which has this tab parent has all of the
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* permissions required to load a document with the given principal.
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*/
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void transmitPermissionsForPrincipal(in nsIPrincipal aPrincipal);
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/**
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* True if any of the frames loaded in the TabChild have registered
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* an onbeforeunload event handler.
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*/
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readonly attribute boolean hasBeforeUnload;
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/**
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* Notify APZ to start autoscrolling.
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* (aAnchorX, aAnchorY) are the coordinates of the autoscroll anchor,
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* in CSS coordinates relative to the screen. aScrollId and
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* aPresShellId identify the scroll frame that content chose to scroll.
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* Returns whether we were successfully able to notify APZ.
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* If this function returns true, APZ (which may live in another process)
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* may still reject the autoscroll, but it's then APZ's reponsibility
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* to notify content via an "autoscroll-rejected-by-apz" message.
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*/
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boolean startApzAutoscroll(in float aAnchorX, in float aAnchorY,
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in nsViewID aScrollId, in uint32_t aPresShellId);
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/**
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* Notify APZ to stop autoscrolling.
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* aScrollId and aPresShellId identify the scroll frame that is being
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* autoscrolled.
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*/
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void stopApzAutoscroll(in nsViewID aScrollId, in uint32_t aPresShellId);
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};
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