From c1a09748498d6ed0e054adc75246fbe013587436 Mon Sep 17 00:00:00 2001 From: Mikkel Oscar Lyderik Date: Fri, 18 Mar 2016 12:23:37 +0100 Subject: [PATCH] Update xdg-shell.xml from wayland-protocols Updates xdg-shell.xml to version 5. --- lib/renderers/wayland/xdg-shell.xml | 533 +++++++++++++++++++--------- 1 file changed, 368 insertions(+), 165 deletions(-) diff --git a/lib/renderers/wayland/xdg-shell.xml b/lib/renderers/wayland/xdg-shell.xml index 776438b..7321ba7 100644 --- a/lib/renderers/wayland/xdg-shell.xml +++ b/lib/renderers/wayland/xdg-shell.xml @@ -1,5 +1,5 @@ - + Copyright © 2008-2013 Kristian Høgsberg @@ -7,94 +7,108 @@ Copyright © 2013 Jasper St. Pierre Copyright © 2010-2013 Intel Corporation - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that copyright notice and this permission - notice appear in supporting documentation, and that the name of - the copyright holders not be used in advertising or publicity - pertaining to distribution of the software without specific, - written prior permission. The copyright holders make no - representations about the suitability of this software for any - purpose. It is provided "as is" without express or implied - warranty. + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: - THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS - SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND - FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY - SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, - ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF - THIS SOFTWARE. + The above copyright notice and this permission notice (including the next + paragraph) shall be included in all copies or substantial portions of the + Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + DEALINGS IN THE SOFTWARE. - This interface is implemented by servers that provide - desktop-style user interfaces. - - It allows clients to associate a xdg_surface with - a basic surface. + xdg_shell allows clients to turn a wl_surface into a "real window" + which can be dragged, resized, stacked, and moved around by the + user. Everything about this interface is suited towards traditional + desktop environments. - The 'current' member of this enum gives the version of the - protocol. Implementations can compare this to the version - they implement using static_assert to ensure the protocol and - implementation versions match. + The 'current' member of this enum gives the version of the + protocol. Implementations can compare this to the version + they implement using static_assert to ensure the protocol and + implementation versions match. - + + + + + + + Destroy this xdg_shell object. + + Destroying a bound xdg_shell object while there are surfaces + still alive created by this xdg_shell object instance is illegal + and will result in a protocol error. + + + - Negotiate the unstable version of the interface. This - mechanism is in place to ensure client and server agree on the - unstable versions of the protocol that they speak or exit - cleanly if they don't agree. This request will go away once - the xdg-shell protocol is stable. + Negotiate the unstable version of the interface. This + mechanism is in place to ensure client and server agree on the + unstable versions of the protocol that they speak or exit + cleanly if they don't agree. This request will go away once + the xdg-shell protocol is stable. - Create a shell surface for an existing surface. + This creates an xdg_surface for the given surface and gives it the + xdg_surface role. A wl_surface can only be given an xdg_surface role + once. If get_xdg_surface is called with a wl_surface that already has + an active xdg_surface associated with it, or if it had any other role, + an error is raised. - This request gives the surface the role of xdg_surface. If the - surface already has another role, it raises a protocol error. - - Only one shell or popup surface can be associated with a given - surface. + See the documentation of xdg_surface for more details about what an + xdg_surface is and how it is used. - - Create a popup surface for an existing surface. + + This creates an xdg_popup for the given surface and gives it the + xdg_popup role. A wl_surface can only be given an xdg_popup role + once. If get_xdg_popup is called with a wl_surface that already has + an active xdg_popup associated with it, or if it had any other role, + an error is raised. - This request gives the surface the role of xdg_popup. If the - surface already has another role, it raises a protocol error. + This request must be used in response to some sort of user action + like a button press, key press, or touch down event. - Only one shell or popup surface can be associated with a given - surface. + See the documentation of xdg_popup for more details about what an + xdg_popup is and how it is used. - - + + - @@ -107,22 +121,24 @@ alive. It's unspecified what will happen if the client doesn't respond to the ping request, or in what timeframe. Clients should try to respond in a reasonable amount of time. + + A compositor is free to ping in any way it wants, but a client must + always respond to any xdg_shell object it created. - + - A client must respond to a ping event with a pong request or - the client may be deemed unresponsive. + A client must respond to a ping event with a pong request or + the client may be deemed unresponsive. - - + An interface that may be implemented by a wl_surface, for implementations that provide a desktop-style user interface. @@ -130,53 +146,76 @@ properties like maximized, fullscreen, minimized, and to move and resize them, and associate metadata like title and app id. - On the server side the object is automatically destroyed when - the related wl_surface is destroyed. On client side, - xdg_surface.destroy() must be called before destroying - the wl_surface object. + The client must call wl_surface.commit on the corresponding wl_surface + for the xdg_surface state to take effect. Prior to committing the new + state, it can set up initial configuration, such as maximizing or setting + a window geometry. + + Even without attaching a buffer the compositor must respond to initial + committed configuration, for instance sending a configure event with + expected window geometry if the client maximized its surface during + initialization. + + For a surface to be mapped by the compositor the client must have + committed both an xdg_surface state and a buffer. - - The xdg_surface interface is removed from the wl_surface object - that was turned into a xdg_surface with - xdg_shell.get_xdg_surface request. The xdg_surface properties, - like maximized and fullscreen, are lost. The wl_surface loses - its role as a xdg_surface. The wl_surface is unmapped. + + Unmap and destroy the window. The window will be effectively + hidden from the user's point of view, and all state like + maximization, fullscreen, and so on, will be lost. - - Child surfaces are stacked above their parents, and will be - unmapped if the parent is unmapped too. They should not appear - on task bars and alt+tab. + + Set the "parent" of this surface. This window should be stacked + above a parent. The parent surface must be mapped as long as this + surface is mapped. + + Parent windows should be set on dialogs, toolboxes, or other + "auxiliary" surfaces, so that the parent is raised when the dialog + is raised. - + - Set a short title for the surface. + Set a short title for the surface. - This string may be used to identify the surface in a task bar, - window list, or other user interface elements provided by the - compositor. + This string may be used to identify the surface in a task bar, + window list, or other user interface elements provided by the + compositor. - The string must be encoded in UTF-8. + The string must be encoded in UTF-8. - - Set an id for the surface. + + Set an application identifier for the surface. - The app id identifies the general class of applications to which - the surface belongs. + The app ID identifies the general class of applications to which + the surface belongs. The compositor can use this to group multiple + surfaces together, or to determine how to launch a new application. - It should be the ID that appears in the new desktop entry - specification, the interface name. + For D-Bus activatable applications, the app ID is used as the D-Bus + service name. + + The compositor shell will try to group application surfaces together + by their app ID. As a best practice, it is suggested to select app + ID's that match the basename of the application's .desktop file. + For example, "org.freedesktop.FooViewer" where the .desktop file is + "org.freedesktop.FooViewer.desktop". + + See the desktop-entry specification [0] for more details on + application identifiers and how they relate to well-known D-Bus + names and .desktop files. + + [0] http://standards.freedesktop.org/desktop-entry-spec/ @@ -188,37 +227,47 @@ user a menu that they can use to maximize or minimize the window. This request asks the compositor to pop up such a window menu at - the given position, relative to the parent surface. There are - no guarantees as to what the window menu contains. + the given position, relative to the local surface coordinates of + the parent surface. There are no guarantees as to what menu items + the window menu contains. - Your surface must have focus on the seat passed in to pop up the - window menu. + This request must be used in response to some sort of user action + like a button press, key press, or touch down event. - - + + - Start a pointer-driven move of the surface. + Start an interactive, user-driven move of the surface. - This request must be used in response to a button press event. - The server may ignore move requests depending on the state of - the surface (e.g. fullscreen or maximized). + This request must be used in response to some sort of user action + like a button press, key press, or touch down event. The passed + serial is used to determine the type of interactive move (touch, + pointer, etc). + + The server may ignore move requests depending on the state of + the surface (e.g. fullscreen or maximized), or if the passed serial + is no longer valid. + + If triggered, the surface will lose the focus of the device + (wl_pointer, wl_touch, etc) used for the move. It is up to the + compositor to visually indicate that the move is taking place, such as + updating a pointer cursor, during the move. There is no guarantee + that the device focus will return when the move is completed. - - + + - These values are used to indicate which edge of a surface - is being dragged in a resize operation. The server may - use this information to adapt its behavior, e.g. choose - an appropriate cursor image. + These values are used to indicate which edge of a surface + is being dragged in a resize operation. @@ -233,14 +282,39 @@ - Start a pointer-driven resizing of the surface. + Start a user-driven, interactive resize of the surface. - This request must be used in response to a button press event. - The server may ignore resize requests depending on the state of - the surface (e.g. fullscreen or maximized). + This request must be used in response to some sort of user action + like a button press, key press, or touch down event. The passed + serial is used to determine the type of interactive resize (touch, + pointer, etc). + + The server may ignore resize requests depending on the state of + the surface (e.g. fullscreen or maximized). + + If triggered, the client will receive configure events with the + "resize" state enum value and the expected sizes. See the "resize" + enum value for more details about what is required. The client + must also acknowledge configure events using "ack_configure". After + the resize is completed, the client will receive another "configure" + event without the resize state. + + If triggered, the surface also will lose the focus of the device + (wl_pointer, wl_touch, etc) used for the resize. It is up to the + compositor to visually indicate that the resize is taking place, + such as updating a pointer cursor, during the resize. There is no + guarantee that the device focus will return when the resize is + completed. + + The edges parameter specifies how the surface should be resized, + and is one of the values of the resize_edge enum. The compositor + may use this information to update the surface position for + example when dragging the top left corner. The compositor may also + use this information to adapt its behavior, e.g. choose an + appropriate cursor image. - - + + @@ -264,42 +338,61 @@ 0x0000 - 0x0FFF: xdg-shell core values, documented below. 0x1000 - 0x1FFF: GNOME + 0x2000 - 0x2FFF: EFL - The surface is maximized. The window geometry specified in the configure - event must be obeyed by the client. + + The surface is maximized. The window geometry specified in the configure + event must be obeyed by the client. + - The surface is fullscreen. The window geometry specified in the configure - event must be obeyed by the client. + + The surface is fullscreen. The window geometry specified in the configure + event must be obeyed by the client. + - - The surface is being resized. The window geometry specified in the - configure event is a maximum; the client cannot resize beyond it. - Clients that have aspect ratio or cell sizing configuration can use - a smaller size, however. + + + The surface is being resized. The window geometry specified in the + configure event is a maximum; the client cannot resize beyond it. + Clients that have aspect ratio or cell sizing configuration can use + a smaller size, however. + - - Client window decorations should be painted as if the window is - active. Do not assume this means that the window actually has - keyboard or pointer focus. + + + Client window decorations should be painted as if the window is + active. Do not assume this means that the window actually has + keyboard or pointer focus. + - The configure event asks the client to resize its surface. + The configure event asks the client to resize its surface or to + change its state. - The width and height arguments specify a hint to the window - about how its surface should be resized in window geometry - coordinates. The states listed in the event specify how the - width/height arguments should be interpreted. + The width and height arguments specify a hint to the window + about how its surface should be resized in window geometry + coordinates. See set_window_geometry. - A client should arrange a new surface, and then send a - ack_configure request with the serial sent in this configure - event before attaching a new surface. + If the width or height arguments are zero, it means the client + should decide its own window dimension. This may happen when the + compositor need to configure the state of the surface but doesn't + have any information about any previous or expected dimension. - If the client receives multiple configure events before it + The states listed in the event specify how the width/height + arguments should be interpreted, and possibly how it should be + drawn. + + Clients should arrange their surface for the new size and + states, and then send a ack_configure request with the serial + sent in this configure event at some point before committing + the new surface. + + If the client receives multiple configure events before it can respond to one, it is free to discard all but the last event it received. @@ -312,14 +405,27 @@ - When a configure event is received, a client should then ack it - using the ack_configure request to ensure that the compositor - knows the client has seen the event. + When a configure event is received, if a client commits the + surface in response to the configure event, then the client + must make an ack_configure request sometime before the commit + request, passing along the serial of the configure event. - By this point, the state is confirmed, and the next attach should - contain the buffer drawn for the configure event you are acking. + For instance, the compositor might use this information to move + a surface to the top left only when the client has drawn itself + for the maximized or fullscreen state. + + If the client receives multiple configure events before it + can respond to one, it only has to ack the last configure event. + + A client is not required to commit immediately after sending + an ack_configure request - it may even ack_configure several times + before its next surface commit. + + The compositor expects that the most recently received + ack_configure request at the time of a commit indicates which + configure event the client is responding to. - + @@ -329,15 +435,26 @@ portions like drop-shadows which should be ignored for the purposes of aligning, placing and constraining windows. - The default value is the full bounds of the surface, including any - subsurfaces. Once the window geometry of the surface is set once, - it is not possible to unset it, and it will remain the same until + The window geometry is double buffered, and will be applied at the + time wl_surface.commit of the corresponding wl_surface is called. + + Once the window geometry of the surface is set once, it is not + possible to unset it, and it will remain the same until set_window_geometry is called again, even if a new subsurface or buffer is attached. + If never set, the value is the full bounds of the surface, + including any subsurfaces. This updates dynamically on every + commit. This unset mode is meant for extremely simple clients. + If responding to a configure event, the window geometry in here must respect the sizing negotiations specified by the states in the configure event. + + The arguments are given in the surface local coordinate space of + the wl_surface associated with this xdg_surface. + + The width and height must be greater than zero. @@ -345,22 +462,77 @@ - - + + + Maximize the surface. + + After requesting that the surface should be maximized, the compositor + will respond by emitting a configure event with the "maximized" state + and the required window geometry. The client should then update its + content, drawing it in a maximized state, i.e. without shadow or other + decoration outside of the window geometry. The client must also + acknowledge the configure when committing the new content (see + ack_configure). + + It is up to the compositor to decide how and where to maximize the + surface, for example which output and what region of the screen should + be used. + + If the surface was already maximized, the compositor will still emit + a configure event with the "maximized" state. + + + + + + Unmaximize the surface. + + After requesting that the surface should be unmaximized, the compositor + will respond by emitting a configure event without the "maximized" + state. If available, the compositor will include the window geometry + dimensions the window had prior to being maximized in the configure + request. The client must then update its content, drawing it in a + regular state, i.e. potentially with shadow, etc. The client must also + acknowledge the configure when committing the new content (see + ack_configure). + + It is up to the compositor to position the surface after it was + unmaximized; usually the position the surface had before maximizing, if + applicable. + + If the surface was already not maximized, the compositor will still + emit a configure event without the "maximized" state. + + - Make the surface fullscreen. + Make the surface fullscreen. You can specify an output that you would prefer to be fullscreen. - If this value is NULL, it's up to the compositor to choose which + If this value is NULL, it's up to the compositor to choose which display will be used to map this surface. + + If the surface doesn't cover the whole output, the compositor will + position the surface in the center of the output and compensate with + black borders filling the rest of the output. - + + + Request that the compositor minimize your surface. There is no + way to know if the surface is currently minimized, nor is there + any way to unset minimization on this surface. + + If you are looking to throttle redrawing when minimized, please + instead use the wl_surface.frame event for this, as this will + also work with live previews on windows in Alt-Tab, Expose or + similar compositor features. + + @@ -377,45 +549,76 @@ - - An interface that may be implemented by a wl_surface, for - implementations that provide a desktop-style popups/menus. A popup - surface is a transient surface with an added pointer grab. + + A popup surface is a short-lived, temporary surface that can be + used to implement menus. It takes an explicit grab on the surface + that will be dismissed when the user dismisses the popup. This can + be done by the user clicking outside the surface, using the keyboard, + or even locking the screen through closing the lid or a timeout. - An existing implicit grab will be changed to owner-events mode, - and the popup grab will continue after the implicit grab ends - (i.e. releasing the mouse button does not cause the popup to be - unmapped). + When the popup is dismissed, a popup_done event will be sent out, + and at the same time the surface will be unmapped. The xdg_popup + object is now inert and cannot be reactivated, so clients should + destroy it. Explicitly destroying the xdg_popup object will also + dismiss the popup and unmap the surface. - The popup grab continues until the window is destroyed or a mouse - button is pressed in any other clients window. A click in any of - the clients surfaces is reported as normal, however, clicks in - other clients surfaces will be discarded and trigger the callback. + Clients will receive events for all their surfaces during this + grab (which is an "owner-events" grab in X11 parlance). This is + done so that users can navigate through submenus and other + "nested" popup windows without having to dismiss the topmost + popup. - The x and y arguments specify the locations of the upper left - corner of the surface relative to the upper left corner of the - parent surface, in surface local coordinates. + Clients that want to dismiss the popup when another surface of + their own is clicked should dismiss the popup using the destroy + request. - xdg_popup surfaces are always transient for another surface. + The parent surface must have either an xdg_surface or xdg_popup + role. + + Specifying an xdg_popup for the parent means that the popups are + nested, with this popup now being the topmost popup. Nested + popups must be destroyed in the reverse order they were created + in, e.g. the only popup you are allowed to destroy at all times + is the topmost one. + + If there is an existing popup when creating a new popup, the + parent must be the current topmost popup. + + A parent surface must be mapped before the new popup is mapped. + + When compositors choose to dismiss a popup, they will likely + dismiss every nested popup as well. When a compositor dismisses + popups, it will follow the same dismissing order as required + from the client. + + The x and y arguments passed when creating the popup object specify + where the top left of the popup should be placed, relative to the + local surface coordinates of the parent surface. See + xdg_shell.get_xdg_popup. + + The client must call wl_surface.commit on the corresponding wl_surface + for the xdg_popup state to take effect. + + For a surface to be mapped by the compositor the client must have + committed both the xdg_popup state and a buffer. - - The xdg_surface interface is removed from the wl_surface object - that was turned into a xdg_surface with - xdg_shell.get_xdg_surface request. The xdg_surface properties, - like maximized and fullscreen, are lost. The wl_surface loses - its role as a xdg_surface. The wl_surface is unmapped. + + This destroys the popup. Explicitly destroying the xdg_popup + object will also dismiss the popup, and unmap the surface. + + If this xdg_popup is not the "topmost" popup, a protocol error + will be sent. - The popup_done event is sent out when a popup grab is broken, - that is, when the users clicks a surface that doesn't belong - to the client owning the popup surface. + The popup_done event is sent out when a popup is dismissed by the + compositor. The client should destroy the xdg_popup object at this + point. -