зеркало из https://github.com/mozilla/gecko-dev.git
186 строки
7.2 KiB
Plaintext
186 строки
7.2 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* 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"
|
|
|
|
interface nsIDocShellTreeOwner;
|
|
interface nsIDocument;
|
|
interface nsPIDOMWindowOuter;
|
|
|
|
|
|
/**
|
|
* The nsIDocShellTreeItem supplies the methods that are required of any item
|
|
* that wishes to be able to live within the docshell tree either as a middle
|
|
* node or a leaf.
|
|
*/
|
|
|
|
[scriptable, uuid(9b7c586f-9214-480c-a2c4-49b526fff1a6)]
|
|
interface nsIDocShellTreeItem : nsISupports
|
|
{
|
|
/*
|
|
name of the DocShellTreeItem
|
|
*/
|
|
attribute AString name;
|
|
|
|
/**
|
|
* Compares the provided name against the item's name and
|
|
* returns the appropriate result.
|
|
*
|
|
* @return <CODE>PR_TRUE</CODE> if names match;
|
|
* <CODE>PR_FALSE</CODE> otherwise.
|
|
*/
|
|
boolean nameEquals(in AString name);
|
|
|
|
/*
|
|
Definitions for the item types.
|
|
*/
|
|
const long typeChrome=0; // typeChrome must equal 0
|
|
const long typeContent=1; // typeContent must equal 1
|
|
const long typeContentWrapper=2; // typeContentWrapper must equal 2
|
|
const long typeChromeWrapper=3; // typeChromeWrapper must equal 3
|
|
|
|
const long typeAll=0x7FFFFFFF;
|
|
|
|
/*
|
|
The type this item is.
|
|
*/
|
|
attribute long itemType;
|
|
[noscript,notxpcom,nostdcall] long ItemType();
|
|
|
|
/*
|
|
Parent DocShell.
|
|
*/
|
|
readonly attribute nsIDocShellTreeItem parent;
|
|
|
|
/*
|
|
This getter returns the same thing parent does however if the parent
|
|
is of a different itemType, or if the parent is an <iframe mozbrowser>.
|
|
It will instead return nullptr. This call is a convience function for
|
|
Ithose wishing to not cross the boundaries at which item types change.
|
|
*/
|
|
readonly attribute nsIDocShellTreeItem sameTypeParent;
|
|
|
|
/*
|
|
Returns the root DocShellTreeItem. This is a convience equivalent to
|
|
getting the parent and its parent until there isn't a parent.
|
|
*/
|
|
readonly attribute nsIDocShellTreeItem rootTreeItem;
|
|
|
|
/*
|
|
Returns the root DocShellTreeItem of the same type. This is a convience
|
|
equivalent to getting the parent of the same type and its parent until
|
|
there isn't a parent.
|
|
*/
|
|
readonly attribute nsIDocShellTreeItem sameTypeRootTreeItem;
|
|
|
|
/*
|
|
Returns the docShellTreeItem with the specified name. Search order is as
|
|
follows...
|
|
1.) Check name of self, if it matches return it.
|
|
2.) For each immediate child.
|
|
a.) Check name of child and if it matches return it.
|
|
b.) Ask the child to perform the check
|
|
i.) Do not ask a child if it is the aRequestor
|
|
ii.) Do not ask a child if it is of a different item type.
|
|
3.) If there is a parent of the same item type ask parent to perform the check
|
|
a.) Do not ask parent if it is the aRequestor
|
|
4.) If there is a tab group ask the tab group to perform the check
|
|
a.) Do not ask the tab group if aSkipTabGroup
|
|
b.) This should only be done if there is no parent of the same type.
|
|
|
|
Return the child DocShellTreeItem with the specified name.
|
|
name - This is the name of the item that is trying to be found.
|
|
aRequestor - This is the object that is requesting the find. This
|
|
parameter is used to identify when the child is asking its parent to find
|
|
a child with the specific name. The parent uses this parameter to ensure
|
|
a resursive state does not occur by not again asking the requestor to find
|
|
a shell by the specified name. Inversely the child uses it to ensure it
|
|
does not ask its parent to do the search if its parent is the one that
|
|
asked it to search. Children also use this to test against the treeOwner;
|
|
aOriginalRequestor - The original treeitem that made the request, if any.
|
|
This is used to ensure that we don't run into cross-site issues.
|
|
aSkipTabGroup - Whether the tab group should be checked.
|
|
*/
|
|
nsIDocShellTreeItem findItemWithName(in AString name,
|
|
in nsIDocShellTreeItem aRequestor,
|
|
in nsIDocShellTreeItem aOriginalRequestor,
|
|
in bool aSkipTabGroup);
|
|
|
|
/*
|
|
The owner of the DocShell Tree. This interface will be called upon when
|
|
the docshell has things it needs to tell to the owner of the docshell.
|
|
Note that docShell tree ownership does not cross tree types. Meaning
|
|
setting ownership on a chrome tree does not set ownership on the content
|
|
sub-trees. A given tree's boundaries are identified by the type changes.
|
|
Trees of different types may be connected, but should not be traversed
|
|
for things such as ownership.
|
|
|
|
Note implementers of this interface should NOT effect the lifetime of the
|
|
parent DocShell by holding this reference as it creates a cycle. Owners
|
|
when releasing this interface should set the treeOwner to nullptr.
|
|
Implementers of this interface are guaranteed that when treeOwner is
|
|
set that the poitner is valid without having to addref.
|
|
|
|
Further note however when others try to get the interface it should be
|
|
addref'd before handing it to them.
|
|
*/
|
|
readonly attribute nsIDocShellTreeOwner treeOwner;
|
|
[noscript] void setTreeOwner(in nsIDocShellTreeOwner treeOwner);
|
|
|
|
/*
|
|
The current number of DocShells which are immediate children of the
|
|
this object.
|
|
*/
|
|
readonly attribute long childCount;
|
|
|
|
/*
|
|
Add a new child DocShellTreeItem. Adds to the end of the list.
|
|
Note that this does NOT take a reference to the child. The child stays
|
|
alive only as long as it's referenced from outside the docshell tree.
|
|
@throws NS_ERROR_ILLEGAL_VALUE if child corresponds to the same
|
|
object as this treenode or an ancestor of this treenode
|
|
@throws NS_ERROR_UNEXPECTED if this node is a leaf in the tree.
|
|
*/
|
|
void addChild(in nsIDocShellTreeItem child);
|
|
|
|
/*
|
|
Removes a child DocShellTreeItem.
|
|
@throws NS_ERROR_UNEXPECTED if this node is a leaf in the tree.
|
|
*/
|
|
void removeChild(in nsIDocShellTreeItem child);
|
|
|
|
/**
|
|
* Return the child at the index requested. This is 0-based.
|
|
*
|
|
* @throws NS_ERROR_UNEXPECTED if the index is out of range
|
|
*/
|
|
nsIDocShellTreeItem getChildAt(in long index);
|
|
|
|
/*
|
|
Return the child DocShellTreeItem with the specified name.
|
|
aName - This is the name of the item that is trying to be found.
|
|
aRecurse - Is used to tell the function to recurse through children.
|
|
Note, recursion will only happen through items of the same type.
|
|
aSameType - If this is set only children of the same type will be returned.
|
|
aRequestor - This is the docshellTreeItem that is requesting the find. This
|
|
parameter is used when recursion is being used to avoid searching the same
|
|
tree again when a child has asked a parent to search for children.
|
|
aOriginalRequestor - The original treeitem that made the request, if any.
|
|
This is used to ensure that we don't run into cross-site issues.
|
|
|
|
Note the search is depth first when recursing.
|
|
*/
|
|
nsIDocShellTreeItem findChildWithName(in AString aName,
|
|
in boolean aRecurse,
|
|
in boolean aSameType,
|
|
in nsIDocShellTreeItem aRequestor,
|
|
in nsIDocShellTreeItem aOriginalRequestor);
|
|
|
|
[noscript,nostdcall,notxpcom] nsIDocument getDocument();
|
|
[noscript,nostdcall,notxpcom] nsPIDOMWindowOuter getWindow();
|
|
};
|
|
|