Source code
Revision control
Copy as Markdown
Other Tools
/* -*- Mode: C++; tab-width: 2; 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
#include "nsISupports.idl"
#include "nsrootidl.idl"
/*#include "nsIWidget.idl" Boy this would be nice.*/
[ptr] native nsIWidget(nsIWidget);
%{C++
#include "Units.h"
#include "mozilla/DimensionRequest.h"
class nsIWidget;
%}
typedef voidPtr nativeWindow;
native DimensionRequest(mozilla::DimensionRequest&&);
native DimensionKind(mozilla::DimensionKind);
/**
* The nsIBaseWindow describes a generic window and basic operations that
* can be performed on it. This is not to be a complete windowing interface
* but rather a common set that nearly all windowed objects support.
*/
[scriptable, builtinclass, uuid(ca635529-a977-4552-9b8a-66187e54d882)]
interface nsIBaseWindow : nsISupports
{
/*
Allows a client to initialize an object implementing this interface with
the usually required window setup information.
It is possible to pass null for parentWidget, but only docshells support
this.
@param parentWidget - This allows a system to pass in the parenting widget.
This allows some objects to optimize themselves and rely on the view
system for event flow rather than creating numerous native windows. If
one of these is not available, nullptr should be passed.
@param x - This is the x co-ordinate relative to the parent to place the
window.
@param y - This is the y co-ordinate relative to the parent to place the
window.
@param cx - This is the width for the window to be.
@param cy - This is the height for the window to be.
@return NS_OK - Window Init succeeded without a problem.
NS_ERROR_UNEXPECTED - Call was unexpected at this time. Perhaps
initWindow() had already been called.
NS_ERROR_INVALID_ARG - controls that require a parentWidget may return
invalid arg when they do not receive what they are needing.
*/
[noscript]void initWindow(
in nsIWidget parentWidget, in long x, in long y, in long cx, in long cy);
/*
Tell the window that it should destroy itself. This call should not be
necessary as it will happen implictly when final release occurs on the
object. If for some reaons you want the window destroyed prior to release
due to cycle or ordering issues, then this call provides that ability.
@return NS_OK - Everything destroyed properly.
NS_ERROR_UNEXPECTED - This call was unexpected at this time.
Perhaps create() has not been called yet.
*/
void destroy();
/*
Sets the current x and y coordinates of the control. This is relative to
the parent window.
*/
void setPosition(in long x, in long y);
/*
Ditto, with arguments in global desktop pixels rather than (potentially
ambiguous) device pixels
*/
void setPositionDesktopPix(in long x, in long y);
/*
Gets the current x and y coordinates of the control. This is relative to the
parent window.
*/
void getPosition(out long x, out long y);
%{C++
mozilla::LayoutDeviceIntPoint GetPosition() {
int32_t x = 0, y = 0;
GetPosition(&x, &y);
return mozilla::LayoutDeviceIntPoint(x, y);
}
%}
/*
Sets the width and height of the control.
*/
void setSize(in long cx, in long cy, in boolean fRepaint);
/*
Gets the width and height of the control.
*/
void getSize(out long cx, out long cy);
%{C++
mozilla::LayoutDeviceIntSize GetSize() {
int32_t w = 0, h = 0;
GetSize(&w, &h);
return mozilla::LayoutDeviceIntSize(w, h);
}
%}
/**
* The 'flags' argument to setPositionAndSize is a set of these bits.
*/
const unsigned long eRepaint = 1;
const unsigned long eDelayResize = 2;
/*
Convenience function combining the SetPosition and SetSize into one call.
Also is more efficient than calling both.
*/
void setPositionAndSize(in long x, in long y, in long cx, in long cy,
in unsigned long flags);
/*
Convenience function combining the GetPosition and GetSize into one call.
Also is more efficient than calling both.
*/
void getPositionAndSize(out long x, out long y, out long cx, out long cy);
%{C++
mozilla::LayoutDeviceIntRect GetPositionAndSize() {
int32_t x = 0, y = 0, w = 0, h = 0;
GetPositionAndSize(&x, &y, &w, &h);
return mozilla::LayoutDeviceIntRect(x, y, w, h);
}
%}
/**
* Allows to request the change of individual dimensions without specifying
* the other components.
*
* @param aRequest - The requested change. A request to change only the width
* may look like:
* {DimensionKind::Outer, Nothing(), Nothing(), Some(20), Nothing()}
*
* Note: Inner position is not supported.
*
* @see DimensionRequest
*/
[noscript] void setDimensions(in DimensionRequest aRequest);
/**
* Gets the dimensions of the window. The caller may pass nullptr for any
* value it is uninterested in receiving.
*
* @param aDimensionKind Specifies whether the dimensions are in reference
* to the inner or outer dimensions.
* @param aX Left hand corner of the outer area; or nullptr.
* @param aY Top corner of the outer area; or nullptr.
* @param aCX Width of the inner or outer area; or nullptr.
* @param aCY Height of the inner or outer area; or nullptr.
*
* Note: Inner position is not supported.
*
* @see DimensionRequest
*/
[noscript] void getDimensions(in DimensionKind aDimensionKind, out long aX, out long aY, out long aCX, out long aCY);
/**
* Tell the window to repaint itself
* @param aForce - if true, repaint immediately
* if false, the window may defer repainting as it sees fit.
*/
void repaint(in boolean force);
/*
This is the parenting widget for the control.
Setting this after Create() has been called may not be supported by some
implementations.
On controls that don't support widgets, setting this will return a
NS_ERROR_NOT_IMPLEMENTED error.
*/
[noscript] attribute nsIWidget parentWidget;
/*
This is the handle (HWND, GdkWindow*, ...) to the native window of the
control, exposed as an AString.
@return AString in hex format with "0x" prepended, or empty string if
mainWidget undefined
@throws NS_ERROR_NOT_IMPLEMENTED for non-XULWindows
*/
readonly attribute AString nativeHandle;
/*
Attribute controls the visibility of the object behind this interface.
Setting this attribute to false will hide the control. Setting it to
true will show it.
*/
attribute boolean visibility;
/*
a disabled window should accept no user interaction; it's a dead window,
like the parent of a modal window.
*/
attribute boolean enabled;
/*
Allows you to find out what the widget is of a given object. Depending
on the object, this may return the parent widget in which this object
lives if it has not had to create its own widget.
*/
[noscript] readonly attribute nsIWidget mainWidget;
/*
The number of device pixels per CSS pixel used by this window's widget at the
default full zoom level.
This is the value returned by GetDefaultScale() of the underlying widget.
Note that this may change if the window is moved between screens with
differing resolutions.
NOTE: This is mostly an implementation detail of
UnscaledDevicePixelsPerCSSPixel, which is what you probably want to use.
*/
[noscript, notxpcom, nostdcall] readonly attribute double widgetCSSToDeviceScale;
%{C++
// The number of device pixels per CSS pixel used on this window's current
// screen at the default full zoom level.
//
// This is the widget scale _plus_ the OS zoom scale if appropriate.
// Implemented in AppWindow.cpp
mozilla::CSSToLayoutDeviceScale UnscaledDevicePixelsPerCSSPixel();
%}
/*
The number of device pixels per display pixel on this window's current
screen. (The meaning of "display pixel" varies across OS environments;
it is the pixel units used by the desktop environment to manage screen
real estate and window positioning, which may correspond to (per-screen)
device pixels, or may be a virtual coordinate space that covers a multi-
monitor, mixed-dpi desktop space.)
This is the value returned by GetDesktopToDeviceScale() of the underlying
widget.
Note that this may change if the window is moved between screens with
differing resolutions.
*/
readonly attribute double devicePixelsPerDesktopPixel;
%{C++
mozilla::DesktopToLayoutDeviceScale DevicePixelsPerDesktopPixel() {
double s = 1.0;
GetDevicePixelsPerDesktopPixel(&s);
return mozilla::DesktopToLayoutDeviceScale(s);
}
mozilla::CSSToDesktopScale GetUnscaledCSSToDesktopScale() {
return UnscaledDevicePixelsPerCSSPixel() / DevicePixelsPerDesktopPixel();
}
%}
/*
Title of the window.
*/
attribute AString title;
};