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</o:shapelayout></xml><![endif]--></head><body lang=KO link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hello.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I feel unnatural to implement custom cursor scenario. Here is a question.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>How does a client request compositor to use system cursor?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The system cursor means a current default cursor for compositor.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Currently, client should know about the system cursor in order to use it as parameter of wl_pointer.set_cursor.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Otherwise, cursor surface should be destroyed to request compositor a rollback to system cursor from custom cursor.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I think it¡¯s enough to detach buffer from cursor surface for hiding the cursor.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>And set_cursor(null surface) can be used to request to stop using custom cursor. (rollback)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Here are some states and protocols.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoListParagraph style='margin-left:38.0pt;mso-para-margin-left:0gd;text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>System cursor -> Custom cursor<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>A.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>set_cursor(cursor_surface)<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>B.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>cursor_surface.attach(buffer for custom image)<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>C.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>cursor_surface.damage<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>D.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>cursor_surface.commit<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoListParagraph style='margin-left:38.0pt;mso-para-margin-left:0gd;text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>Custom cursor -> System cursor<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>A.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>set_cursor(null surface)<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoListParagraph style='margin-left:38.0pt;mso-para-margin-left:0gd;text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>Custom cursor -> Hide Cursor<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>A.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>set_cursor(cursor_surface) (can be omitted if it is already set)<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>B.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>cursor_surface.attach(null buffer)<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>C.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>cursor_surface.commit<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoListParagraph style='margin-left:38.0pt;mso-para-margin-left:0gd;text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>System cursor -> Hide Cursor<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>A.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>set_cursor(cursor_surface) <o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>B.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>cursor_surface.attach(null buffer) (can be omitted if it is already detached)<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:60.0pt;mso-para-margin-left:0gd;text-indent:-20.0pt;mso-list:l0 level2 lfo1'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>C.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>cursor_surface.commit<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I think this can cover up a scenario when pointer enters into a surface of client.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>If there is no specific cursor for client to want when pointer enters, it¡¯s enough to request set_cursor(null).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Is this approach possible? I want to listen your opinions.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Elvis.<o:p></o:p></span></p></div></body></html>