55 lines
1.7 KiB
NASM
55 lines
1.7 KiB
NASM
; task that manages window events
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; start a task which handles passing system events into the correct window event queue
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; inputs:
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; none
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; outputs:
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; none
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start_event_manager_task:
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; allocate 256 bytes for the stack
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mov r0, 256
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call allocate_memory
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add r0, 256 ; add 256 so the stach pointer is at the end of the stack block (stack grows down)
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mov r10, r0
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; then start the task
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call get_unused_task_id
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mov r1, event_manager_task_loop ; initial instruction pointer
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mov r2, r10 ; initial stack pointer
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mov r3, 0 ; pointer to task code block to free when task ends
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; (zero since we don't want to free any code blocks when the task ends)
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mov r4, r10 ; pointer to task stack block to free when task ends
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sub r4, 256 ; point to the start of the stack block that we allocated above
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call new_task
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ret
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event_manager_task_loop:
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call get_next_event
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; HACK: put menu bar events back into the system event queue
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cmp r0, EVENT_TYPE_MENU_BAR_CLICK
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ifz call new_event
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cmp r0, EVENT_TYPE_MENU_CLICK
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ifz call new_event
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cmp r0, EVENT_TYPE_MENU_UPDATE
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ifz call new_event
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cmp [active_window], 0
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ifz rjmp event_manager_task_loop_end
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; mouse
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cmp r0, EVENT_TYPE_MOUSE_CLICK
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ifz call add_mouse_event_to_active_window
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cmp r0, EVENT_TYPE_MOUSE_RELEASE
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ifz call add_mouse_event_to_active_window
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; keyboard
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cmp r0, EVENT_TYPE_KEY_DOWN
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ifz call add_event_to_active_window
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cmp r0, EVENT_TYPE_KEY_UP
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ifz call add_event_to_active_window
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event_manager_task_loop_end:
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call yield_task
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rjmp event_manager_task_loop
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