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Wayland Input Methods
Wayland Input Methods
Wayland Input Methods Michael Hasselmann Openismus GmbH Wayland - - PowerPoint PPT Presentation
Wayland Input Methods Michael Hasselmann Openismus GmbH Wayland - - PowerPoint PPT Presentation
Wayland Input Methods Michael Hasselmann Openismus GmbH Wayland Input Methods Input methods? Wayland Input Methods Input method developers want a unified architecture! (And UI toolkits don't want to bother too much ) Wayland Input
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Wayland Input Methods
Input method developers want a unified architecture!
(And UI toolkits don't want to bother too much …)
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Wayland Input Methods
No protocol evolution in XIM
https://mail.gnome.org/archives/wm-spec- list/2007-August/msg00025.html
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Wayland Input Methods
One display server, many platforms
Kernel Display Server Toolkits Shells & Window Managers
Gnome Gnome Shell Shell Mutter Mutter Unity Unity Compiz Compiz Plasma/ Plasma/ Plasma Active Plasma Active KWin KWin Qt/QML Qt/QML Qt Quick Qt Quick Components Components GTK+ GTK+ ST/Mx ST/Mx Clutter Clutter Xorg Xorg Evas/Edje Evas/Edje Elementary Elementary SDL SDL Weston Weston
Applications Shell Extensions
Much better, more detailed: http://blog.mecheye.net/2012/06/the-linux-graphics-stack/ (Jasper „magcius“ St. Pierre)
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Wayland Input Methods
Wayland 1.0: No input methods
(but lots of crazy talk @ FOSDEM 2012)
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Wayland Input Methods
One protocol, three interfaces
Input methods
protocol/input_method.xml interfaces: input_method_context, input_method, input_panel, input_panel_surface requests: commit_string, preedit_string, preedit_styling, keysym … events: surrounding_text, reset, content_type, invoke_action, commit, …
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Wayland Input Methods
One protocol, three interfaces
Input methods
protocol/input_method.xml interfaces: input_method_context, input_method, input_panel, input_panel_surface requests: commit_string, preedit_string, preedit_styling, keysym … events: surrounding_text, reset, content_type, invoke_action, commit, …
Weston
examples: clients/keyboard.c clients/editor.c clients/weston-simple-im.c generated headers: input-method-client- protocol.h input-method-server- protocol.h text-client-protocol.h text-server-protocol.h
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Wayland Input Methods
One protocol, three interfaces
Input methods
protocol/input_method.xml interfaces: input_method_context, input_method, input_panel, input_panel_surface requests: commit_string, preedit_string, preedit_styling, keysym, … events: surrounding_text, reset, content_type, invoke_action, commit, …
Weston
examples: clients/keyboard.c clients/editor.c clients/weston-simple-im.c API (generated from XML): input-method-client- protocol.h input-method-server- protocol.h text-client-protocol.h text-server-protocol.h
UI toolkits
protocol/text.xml interfaces: text_model, text_model_factory requests: set_surrounding_text, activate, deactivate, set_content_type, … events: commit_string, preedit_string, preedit_styling, keysm, …
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Wayland Input Methods
Architecture Overview
https://wiki.maliit.org/Wayland_Input_Method_System_Proposal Application (EFL) Application (EFL) Weston Weston Application (GTK+) Application (GTK+) Application (Qt) Application (Qt)
Wayland & Wayland text Interface (text_model) Wayland & Wayland text Interface (text_model)
Input Method Input Method
Wayland & Wayland input method Interfaces (input_method_context, input_panel_surface)
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Wayland Input Methods
Weston Keyboard & EFL
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Wayland Input Methods
Maliit Keybord & EFL
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Wayland Input Methods
Sub-surfaces
(in X11: transient hints)
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Wayland Input Methods
Sub-surfaces & input methods
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Wayland Input Methods
IPC with sync calls
input method application compositor
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Wayland Input Methods
IPC + sequence numbers
input method requests: (idle) preedit_string(n) commit_string(n) reset(n+1) commit_string(n+1) application requests: activate(n) set_surrounding_text(n) set_cursor_position(n) commit(n) reset(n+1)
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Wayland Input Methods
Videos & more details @ blog.jpetersen.org
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Wayland Input Methods