76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
// 27 february 2014
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package ui
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import (
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// ...
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)
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/*
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This creates a class goAppDelegate that will be used as the delegate for /everything/. Specifically, it:
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- runs uitask requests (uitask:)
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- handles window close events (windowShouldClose:)
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- handles window resize events (windowDidResize:)
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- handles button click events (buttonClicked:)
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- handles the application-global Quit event (such as from the Dock) (applicationShouldTerminate)
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*/
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// #cgo LDFLAGS: -lobjc -framework Foundation -framework AppKit
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// #include <stdlib.h>
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// #include "objc_darwin.h"
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// #include "delegateuitask_darwin.h"
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import "C"
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var (
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appDelegate C.id
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)
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const (
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_goAppDelegate = "goAppDelegate"
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)
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var (
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_uitask = sel_getUid("uitask:") // used by uitask_darwin.go
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_buttonClicked = sel_getUid("buttonClicked:") // used by sysdata_darwin.go
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)
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func mkAppDelegate() error {
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appDelegate = C.makeAppDelegate()
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return nil
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}
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//export appDelegate_windowShouldClose
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func appDelegate_windowShouldClose(win C.id) {
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sysData := getSysData(win)
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sysData.signal()
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}
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var (
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_object = sel_getUid("object")
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_display = sel_getUid("display")
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)
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//export appDelegate_windowDidResize
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func appDelegate_windowDidResize(win C.id) {
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s := getSysData(win)
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wincv := C.windowGetContentView(win) // we want the content view's size, not the window's
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r := C.objc_msgSend_stret_rect_noargs(wincv, _frame)
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// winheight is used here because (0,0) is the bottom-left corner, not the top-left corner
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s.doResize(0, 0, int(r.width), int(r.height), int(r.height))
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C.objc_msgSend_noargs(win, _display) // redraw everything; TODO only if resize() was called?
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}
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//export appDelegate_buttonClicked
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func appDelegate_buttonClicked(button C.id) {
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sysData := getSysData(button)
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sysData.signal()
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}
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//export appDelegate_applicationShouldTerminate
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func appDelegate_applicationShouldTerminate() {
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// asynchronous so as to return control to the event loop
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go func() {
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AppQuit <- struct{}{}
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}()
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}
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