pjs/widget/public/nsIWidget.idl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <pavlov@netscape.com>
* Rod Spears <rods@netscape.com>
* Kevin McCluskey <kmcclusk@netscape.com>
* Mike Pinkerton <pinkerton@netscape.com>
* ... and other people
*/
#include "nsISupports.idl"
#include "nsIScriptableRegion.idl"
#include "nsIRollupListener.idl"
#include "nsIToolkit.idl"
#include "nsIAppShell.idl"
#include "nsIEnumerator.idl"
%{ C++
#include "nsRect.h"
#include "nsColor.h"
#include "nsIMouseListener.h"
#include "nsIMenuListener.h"
#include "nsIImage.h"
#include "prthread.h"
#include "nsGUIEvent.h"
// forward declarations
class nsIAppShell;
class nsIToolkit;
class nsFont;
class nsIToolkit;
class nsIRenderingContext;
class nsIEnumerator;
class nsIDeviceContext;
struct nsRect;
struct nsFont;
class nsIMenuBar;
class nsIEventListener;
class nsIRollupListener;
%}
[ptr] native nsWidgetInitData(nsWidgetInitData);
[ptr] native nsGUIEvent(nsGUIEvent);
[ptr] native nsIMenuBar(nsIMenuBar);
[ptr] native nsIMouseListener(nsIMouseListener);
[ptr] native nsIEventListener(nsIEventListener);
[ptr] native nsIMenuListener(nsIMenuListener);
[ptr] native nsRect(nsRect);
[ref] native nsRectRef(nsRect);
[ptr] native nsFont(nsFont);
[ptr] native nsColorMap(nsColorMap);
[ptr] native nsIRenderingContext(nsIRenderingContext);
[ptr] native nsIDeviceContext(nsIDeviceContext);
native nscolor(nscolor);
native nscoord(nscoord);
native nsEventStatus(nsEventStatus);
native PR_CALLBACK(PR_CALLBACKK);
native EVENT_CALLBACK(EVENT_CALLBACK);
typedef long nsBorderStyle;
typedef long nsWindowType;
typedef long nsCursor;
/*
* Hide the native window systems real window type so as to avoid
* including native window system types and api's. This is necessary
* to ensure cross-platform code.
*/
typedef voidStar nsNativeWidget;
%{ C++
/**
* Basic struct for widget initialization data.
* @see Create member function of nsIWidget
*/
struct nsWidgetInitData {
nsWidgetInitData()
: clipChildren(PR_FALSE), clipSiblings(PR_FALSE),
mWindowType(3),
mBorderStyle(-1)
{
}
// when painting exclude area occupied by child windows and sibling windows
PRPackedBool clipChildren, clipSiblings;
nsWindowType mWindowType;
nsBorderStyle mBorderStyle;
};
%}
%{ C++
typedef nsEventStatus (*PR_CALLBACK EVENT_CALLBACK)(nsGUIEvent *event);
%}
[uuid(18032AD5-B265-11d1-AA2A-000000000000)]
interface nsIWidget : nsISupports
{
/*
* Flags for GetNativeData()
*/
const short NS_NATIVE_WINDOW = 0;
const short NS_NATIVE_GRAPHIC = 1;
const short NS_NATIVE_COLORMAP = 2;
const short NS_NATIVE_WIDGET = 3;
const short NS_NATIVE_DISPLAY = 4;
const short NS_NATIVE_REGION = 5;
const short NS_NATIVE_OFFSETX = 6;
const short NS_NATIVE_OFFSETY = 7;
const short NS_NATIVE_PLUGIN_PORT = 8;
const short NS_NATIVE_SCREEN = 9;
/*
* types of windows
*/
const long eWindowType_toplevel = 0;
const long eWindowType_dialog = 1;
const long eWindowType_popup = 2;
const long eWindowType_child = 3;
/*
* Border styles
*/
// no border, titlebar, etc.. opposite of all
const long eBorderStyle_none = 0;
// all window decorations
const long eBorderStyle_all = 1 << 0;
// enables the border on the window. these are only for decoration and are not resize hadles
const long eBorderStyle_border = 1 << 1;
// enables the resize handles for the window. if this is set, border is implied to also be set
const long eBorderStyle_resizeh = 1 << 2;
// enables the titlebar for the window
const long eBorderStyle_title = 1 << 3;
// enables the window menu button on the title bar. this being on should force the title bar to display
const long eBorderStyle_menu = 1 << 4;
// enables the minimize button so the user can minimize the window.
// turned off for tranient windows since they can not be minimized seperate from their parent
const long eBorderStyle_minimize = 1 << 5;
// enables the maxmize button so the user can maximize the window
const long eBorderStyle_maximize = 1 << 6;
// show the close button
const long eBorderStyle_close = 1 << 7;
// whatever the OS wants... i.e. don't do anything
const long eBorderStyle_default = -1;
/**
* Cursor types.
*/
//(normal cursor, usually rendered as an arrow)
const long eCursor_standard = 0;
//(system is busy, usually rendered as a hourglass or watch)
const long eCursor_wait = 1;
//(Selecting something, usually rendered as an IBeam)
const long eCursor_select = 2;
//(can hyper-link, usually rendered as a human hand)
const long eCursor_hyperlink = 3;
//(west/east sizing, usually rendered as ->||<-)
const long eCursor_sizeWE = 4;
//(north/south sizing, usually rendered as sizeWE rotated 90 degrees)
const long eCursor_sizeNS = 5;
const long eCursor_arrow_north = 6;
const long eCursor_arrow_north_plus = 7;
const long eCursor_arrow_south = 8;
const long eCursor_arrow_south_plus = 9;
const long eCursor_arrow_west = 10;
const long eCursor_arrow_west_plus = 11;
const long eCursor_arrow_east = 12;
const long eCursor_arrow_east_plus = 13;
const long eCursor_crosshair = 14;
//Don't know what 'move' cursor should be. See CSS2.
const long eCursor_move = 15;
const long eCursor_help = 16;
/**
* Create and initialize a widget.
*
* The widget represents a window that can be drawn into. It also is the
* base class for user-interface widgets such as buttons and text boxes.
*
* All the arguments can be NULL in which case a top level window
* with size 0 is created. The event callback function has to be
* provided only if the caller wants to deal with the events this
* widget receives. The event callback is basically a preprocess
* hook called synchronously. The return value determines whether
* the event goes to the default window procedure or it is hidden
* to the os. The assumption is that if the event handler returns
* false the widget does not see the event. The widget should not
* automatically clear the window to the background color. The
* calling code must handle paint messages and clear the background
* itself.
*
* @param parent or null if it's a top level window
* @param aRect the widget dimension
* @param aHandleEventFunction the event handler callback function
* @param aContext
* @param aAppShell the parent application shell. If nsnull,
* the parent window's application shell will be used.
* @param aToolkit
* @param aInitData data that is used for widget initialization
*
*/
void Create(in nsIWidget aParent,
[const] in nsRectRef aRect,
in EVENT_CALLBACK aHandleEventFunction,
in nsIDeviceContext aContext,
in nsIAppShell aAppShell,
in nsIToolkit aToolkit,
in nsWidgetInitData aInitData);
/**
* Create and initialize a widget with a native window parent
*
* The widget represents a window that can be drawn into. It also is the
* base class for user-interface widgets such as buttons and text boxes.
*
* All the arguments can be NULL in which case a top level window
* with size 0 is created. The event callback function has to be
* provided only if the caller wants to deal with the events this
* widget receives. The event callback is basically a preprocess
* hook called synchronously. The return value determines whether
* the event goes to the default window procedure or it is hidden
* to the os. The assumption is that if the event handler returns
* false the widget does not see the event.
*
* @param aParent native window.
* @param aRect the widget dimension
* @param aHandleEventFunction the event handler callback function
*/
void CreateWithNativeParent(in nsNativeWidget aParent,
[const] in nsRectRef aRect,
in EVENT_CALLBACK aHandleEventFunction,
in nsIDeviceContext aContext,
in nsIAppShell aAppShell,
in nsIToolkit aToolkit,
in nsWidgetInitData aInitData);
/**
* Get the window type which was set in nsWidgetInitData during Create()
*/
readonly attribute nsWindowType WindowType;
/**
* Get the border style which was set in nsWidgetInitData during Create()
*/
readonly attribute nsBorderStyle BorderStyle;
/**
* Accessor functions to get and set the client data associated with the
* widget.
*/
attribute voidStar ClientData;
/**
* Return the parent Widget of this Widget or nsnull if this is a
* top level window
*
* @return the parent widget or nsnull if it does not have a parent
*
*/
void GetParent(out nsIWidget aParent);
/**
* Show or hide this widget
* XXX Replaced Show() and IsVisible()
* @param aState PR_TRUE to show the Widget, PR_FALSE to hide it
*
*/
attribute PRBool Visibility;
/**
* Make the window modal
*
*
*
*/
void SetModal();
/**
* Move this widget.
*
* @param aX the new x position expressed in the parent's coordinate system
* @param aY the new y position expressed in the parent's coordinate system
*
**/
void Move(in PRInt32 aX, in PRInt32 aY);
/**
* Resize this widget.
*
* @param aWidth the new width expressed in the parent's coordinate system
* @param aHeight the new height expressed in the parent's coordinate system
* @param aRepaint whether the widget should be repainted
*
*/
void Resize(in PRInt32 aWidth,
in PRInt32 aHeight,
in PRBool aRepaint);
/**
* Move and resize this widget.
*
* @param aX the new x position expressed in the parent's coordinate system
* @param aY the new y position expressed in the parent's coordinate system
* @param aWidth the new width expressed in the parent's coordinate system
* @param aHeight the new height expressed in the parent's coordinate system
* @param aRepaint whether the widget should be repainted if the size changes
*
*/
void MoveResize(in PRInt32 aX,
in PRInt32 aY,
in PRInt32 aWidth,
in PRInt32 aHeight,
in PRBool aRepaint);
/**
* Enable or disable this Widget
*
* @param aState PR_TRUE to enable the Widget, PR_FALSE to disable it.
*
*/
void Enable(in PRBool aState);
/**
* Give focus to this widget.
*/
void SetFocus();
/**
* Get this widget's outside dimensions relative to it's parent widget
*
* @param aRect on return it holds the x. y, width and height of this widget
*
*/
// readonly attribute nsRect Bounds;
// this is really out..
void GetBounds(in nsRectRef aRect);
/**
* Get this widget's client area dimensions, if the window has a 3D border appearance
* this returns the area inside the border, The x and y are always zero
*
* @param aRect on return it holds the x. y, width and height of the client area of this widget
*
*/
// readonly attribute nsRect ClientBounds;
// this is really out..
void GetClientBounds(in nsRectRef aRect);
/**
* Gets the width and height of the borders
* @param aWidth the width of the border
* @param aHeight the height of the border
*
*/
void GetBorderSize(out PRInt32 aWidth, out PRInt32 aHeight);
/**
* Set/Get the foreground color for this widget
*
* @param aColor the new foreground color
*
*/
attribute nscolor ForegroundColor;
/**
* Set/Get the background color for this widget
*
* @param aColor the new background color
*
*/
attribute nscolor BackgroundColor;
/**
* Set/Get the font for this widget
*
* @param aFont font to display. See nsFont for allowable fonts
*/
attribute nsFont Font;
/**
* Set/Get the cursor for this widget
*
* @param aCursor the new cursor for this widget
*/
attribute nsCursor Cursor;
/**
* Invalidate the widget and repaint it.
*
* @param aIsSynchronouse PR_TRUE then repaint synchronously. If PR_FALSE repaint later.
* @see #Update()
*/
void Invalidate(in PRBool aIsSynchronous);
/**
* Invalidate a specified rect for a widget and repaints it.
*
* @param aIsSynchronouse PR_TRUE then repaint synchronously. If PR_FALSE repaint later.
* @see #Update()
*/
void InvalidateRect([const] in nsRect aRect, in PRBool aIsSynchronous);
/**
* Invalidate a specified rect for a widget and repaints it.
*
* @param aIsSynchronouse PR_TRUE then repaint synchronously. If PR_FALSE repaint later.
* @see #Update()
*/
void InvalidateRegion([const] in nsIScriptableRegion aRegion, in PRBool aIsSynchronous);
/**
* Force a synchronous repaint of the window if there are dirty rects.
*
* @see Invalidate()
*/
void Update();
/**
* Adds a mouse listener to this widget
* Any existing mouse listener is replaced
*
* @param aListener mouse listener to add to this widget.
*/
void AddMouseListener(in nsIMouseListener aListener);
/**
* Adds an event listener to this widget
* Any existing event listener is replaced
*
* @param aListener event listener to add to this widget.
*/
void AddEventListener(in nsIEventListener aListener);
/**
* Adds a menu listener to this widget
* Any existing menu listener is replaced
*
* @param aListener menu listener to add to this widget.
*/
void AddMenuListener(in nsIMenuListener aListener);
/**
* Set the color map for this widget
*
* @param aColorMap color map for displaying this widget
*
*/
attribute nsColorMap ColorMap;
/**
* Scroll this widget.
*
* @param aDx amount to scroll along the x-axis
* @param aDy amount to scroll along the y-axis.
* @param aClipRect clipping rectangle to limit the scroll to.
*
*/
void Scroll(in PRInt32 aDx, in PRInt32 aDy, in nsRect aClipRect);
/**
* Set the widget's title.
* Must be called after Create.
*
* @param aTitle string displayed as the title of the widget
*/
void SetTitle(in string aTitle);
/**
* Set the widget's MenuBar.
* Must be called after Create.
*
* @param aMenuBar the menubar
*/
void SetMenuBar(in nsIMenuBar aMenuBar);
/**
* Set the widget's MenuBar's visibility
*
* @param aShow PR_TRUE to show, PR_FALSE to hide
*/
void ShowMenuBar(in PRBool aShow);
/**
* Convert from this widget coordinates to screen coordinates.
*
* @param aOldRect widget coordinates stored in the x,y members
* @param aNewRect screen coordinates stored in the x,y members
*/
void WidgetToScreen([const] in nsRect aOldRect, out nsRect aNewRect);
/**
* Convert from screen coordinates to this widget's coordinates.
*
* @param aOldRect screen coordinates stored in the x,y members
* @param aNewRect widget's coordinates stored in the x,y members
*/
void ScreenToWidget([const] in nsRect aOldRect, out nsRect aNewRect);
/**
* When adjustments are to made to a whole set of child widgets, call this
* before resizing/positioning the child windows to minimize repaints. Must
* be followed by EndResizingChildren() after child windows have been
* adjusted.
*
*/
void BeginResizingChildren();
/**
* Call this when finished adjusting child windows. Must be preceded by
* BeginResizingChildren().
*
*/
void EndResizingChildren();
/**
* Returns the preferred width and height for the widget
*
*/
void GetPreferredSize(out PRInt32 aWidth,
out PRInt32 aHeight);
/**
* Set the preferred width and height for the widget
*
*/
void SetPreferredSize(in PRInt32 aWidth, in PRInt32 aHeight);
/**
* Dispatches and event to the widget
*
*/
void DispatchEvent(in nsGUIEvent event, in nsEventStatus aStatus);
/**
* For printing and lightweight widgets
*
*/
void Paint(in nsIRenderingContext aRenderingContext,
[const] in nsRect aDirtyRect);
/**
* Enables the dropping of files to a widget (XXX this is temporary)
*
*/
void EnableFileDrop(in PRBool aEnable);
void ConvertToDeviceCoordinates(inout nscoord aX, inout nscoord aY);
/**
* Enables/Disables system mouse capture.
* @param aCapture PR_TRUE enables mouse capture, PR_FALSE disables mouse capture
*
*/
void CaptureMouse(in PRBool aCapture);
/**
* Enables/Disables system capture of any and all events that would cause a
* dropdown to be rolled up, This method ignores the aConsumeRollupEvent
* parameter when aDoCapture is FALSE
* @param aCapture PR_TRUE enables capture, PR_FALSE disables capture
* @param aConsumeRollupEvent PR_TRUE consumes the rollup event, PR_FALSE dispatches rollup event
*
*/
void CaptureRollupEvents(in nsIRollupListener aListener, in PRBool aDoCapture, in PRBool aConsumeRollupEvent);
/**
* Internal methods
*/
void AddChild(in nsIWidget aChild);
void RemoveChild(in nsIWidget aChild);
/**
* Return an nsEnumerator over the children of this widget.
*
* @return an enumerator over the list of children or nsnull if it does not
* have any children
*
*/
void GetChildren(out nsIEnumerator aChildren);
};