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nsIWindowMediator.idl
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nsIWindowMediator.idl
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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"
#include "nsISimpleEnumerator.idl"
%{C++
#define NS_WINDOWMEDIATOR_CID \
{ 0x79a2b7cc, 0xf05b, 0x4605, \
{ 0xbf, 0xa0, 0xfa, 0xc5, 0x4f, 0x27, 0xee, 0xc8 } }
#define NS_WINDOWMEDIATOR_CONTRACTID \
"@mozilla.org/appshell/window-mediator;1"
%}
interface mozIDOMWindow;
interface mozIDOMWindowProxy;
interface nsIXULWindow;
interface nsIWidget;
interface nsIWindowMediatorListener;
[scriptable, uuid(df0da056-357d-427f-bafd-e6cbf19c9381)]
interface nsIWindowMediator: nsISupports
{
/** Return an enumerator which iterates over all windows of type aWindowType
* from the oldest window to the youngest.
* @param aWindowType the returned enumerator will enumerate only
* windows of this type. ("type" is the
* |windowtype| attribute of the XML <window> element.)
* If null, all windows will be enumerated.
* @return an enumerator of nsIDOMWindows. Note that windows close
* asynchronously in many cases, so windows returned from this
* enumerator can have .closed set to true. Caveat enumerator!
*/
nsISimpleEnumerator getEnumerator(in wstring aWindowType);
/** Identical to getEnumerator except:
* @return an enumerator of nsIXULWindows
*/
nsISimpleEnumerator getXULWindowEnumerator(in wstring aWindowType);
/** Return an enumerator which iterates over all windows of type aWindowType
* in their z (front-to-back) order. Note this interface makes
* no requirement that a window couldn't be revisited if windows
* are re-ordered while z-order enumerators are active.
* @param aWindowType the returned enumerator will enumerate only
* windows of this type. ("type" is the
* |windowtype| attribute of the XML <window> element.)
* If null, all windows will be enumerated.
* @param aFrontToBack if true, the enumerator enumerates windows in order
* from front to back. back to front if false.
* @return an enumerator of nsIXULWindows
*/
nsISimpleEnumerator getZOrderXULWindowEnumerator(in wstring aWindowType,
in boolean aFrontToBack);
/** This is a shortcut for simply fetching the first window in
* front to back order.
* @param aWindowType return the topmost window of this type.
* ("type" is the |windowtype| attribute of
* the XML <window> element.)
* If null, return the topmost window of any type.
* @return the topmost window
*/
mozIDOMWindowProxy getMostRecentWindow(in wstring aWindowType);
/** This is a shortcut for getMostRecentWindow('navigator:browser'), but
* it also tries 'navigator:geckoview' if that fails.
*
* @return the topmost browser window
*/
mozIDOMWindowProxy getMostRecentBrowserWindow();
/**
* Same as getMostRecentWindow, but ignores private browsing
* windows.
*/
mozIDOMWindowProxy getMostRecentNonPBWindow(in wstring aWindowType);
/**
* Return the outer window with the given ID, if any. Can return null.
*/
mozIDOMWindowProxy getOuterWindowWithId(in unsigned long long aOuterWindowID);
/**
* Return the inner window with the given current window ID, if any.
* Can return null if no inner window with the ID exists or if it's not
* a current inner anymore.
*/
mozIDOMWindow getCurrentInnerWindowWithId(in unsigned long long aInnerWindowID);
/** Add the window to the list of known windows. Listeners (see
* addListener) will be notified through their onOpenWindow method.
* @param aWindow the window to add
*/
[noscript] void registerWindow(in nsIXULWindow aWindow);
/** Remove the window from the list of known windows. Listeners (see
* addListener) will be be notified through their onCloseWindow method.
* @param aWindow the window to remove
*/
[noscript] void unregisterWindow(in nsIXULWindow aWindow);
/** Call this method when a window gains focus. It's a primitive means of
* determining the most recent window. It's no longer necessary and it
* really should be removed.
* @param aWindow the window which has gained focus
*/
[noscript] void updateWindowTimeStamp(in nsIXULWindow aWindow);
/* z-ordering: */
const unsigned long zLevelTop = 1;
const unsigned long zLevelBottom = 2;
const unsigned long zLevelBelow = 3; // below some window
/** A window wants to be moved in z-order. Calculate whether and how
* it should be constrained. Note this method is advisory only:
* it changes nothing either in WindowMediator's internal state
* or with the window.
* Note it compares the nsIXULWindow to nsIWidgets. A pure interface
* would use all nsIXULWindows. But we expect this to be called from
* callbacks originating in native window code. They are expected to
* hand us comparison values which are pulled from general storage
* in the native widget, and may not correspond to an nsIWidget at all.
* For that reason this interface requires only objects one step
* removed from the native window (nsIWidgets), and its implementation
* must be very understanding of what may be completely invalid
* pointers in those parameters.
*
* @param inWindow the window in question
* @param inPosition requested position
* values: zLevelTop: topmost window. zLevelBottom: bottom.
* zLevelBelow: below ioBelow. (the value of ioBelow will
* be ignored for zLevelTop and Bottom.)
* @param inBelow if inPosition==zLevelBelow, the window
* below which inWindow wants to be placed. Otherwise this
* variable is ignored.
* @param outPosition constrained position, values like inPosition.
* @param outBelow if outPosition==zLevelBelow, the window
* below which inWindow should be placed. Otherwise this
* this value will be null.
* @return PR_TRUE if the position returned is different from
* the position given.
*/
[noscript] boolean calculateZPosition(in nsIXULWindow inWindow,
in unsigned long inPosition,
in nsIWidget inBelow,
out unsigned long outPosition,
out nsIWidget outBelow);
/** A window has been positioned behind another. Inform WindowMediator
* @param inWindow the window in question
* @param inPosition new position. values:
* zLevelTop: topmost window.
* zLevelBottom: bottom.
* zLevelBelow: below inBelow. (inBelow is ignored
* for other values of inPosition.)
* @param inBelow the window inWindow is behind, if zLevelBelow
*/
[noscript] void setZPosition(in nsIXULWindow inWindow,
in unsigned long inPosition,
in nsIXULWindow inBelow);
/** Return the window's Z level (as defined in nsIXULWindow).
* @param aWindow the window in question
* @return aWindow's z level
*/
[noscript] uint32_t getZLevel(in nsIXULWindow aWindow);
/** Set the window's Z level (as defined in nsIXULWindow). The implementation
* will reposition the window as necessary to match its new Z level.
* The implementation will assume a window's Z level to be
* nsIXULWindow::normalZ until it has been informed of a different level.
* @param aWindow the window in question
* @param aZLevel the window's new Z level
*/
[noscript] void setZLevel(in nsIXULWindow aWindow, in uint32_t aZLevel);
/** Register a listener for window status changes.
* keeps strong ref? (to be decided)
* @param aListener the listener to register
*/
void addListener(in nsIWindowMediatorListener aListener);
/** Unregister a listener of window status changes.
* @param aListener the listener to unregister
*/
void removeListener(in nsIWindowMediatorListener aListener);
};