1 ! Copyright (C) 2005, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays assocs kernel math math.order models
4 namespaces make sequences words strings system hashtables math.parser
5 math.vectors classes.tuple classes boxes calendar timers combinators
6 sets columns fry deques ui.gadgets ui.gadgets.private ascii
7 combinators.short-circuit ;
8 FROM: namespaces => set ;
11 : get-gesture-handler ( gesture gadget -- quot )
12 class-of superclasses [ "gestures" word-prop ] map assoc-stack ;
14 GENERIC: handle-gesture ( gesture gadget -- ? )
16 M: object handle-gesture
18 [ get-gesture-handler ] 2bi
19 dup [ call( gadget -- ) f ] [ 2drop t ] if ;
21 GENERIC: handles-gesture? ( gesture gadget -- ? )
23 M: object handles-gesture? ( gesture gadget -- ? )
24 get-gesture-handler >boolean ;
26 : parents-handle-gesture? ( gesture gadget -- ? )
27 [ handles-gesture? not ] with each-parent not ;
29 : set-gestures ( class hash -- ) "gestures" set-word-prop ;
31 : gesture-queue ( -- deque ) \ gesture-queue get ;
33 GENERIC: send-queued-gesture ( request -- )
35 TUPLE: send-gesture-tuple gesture gadget ;
37 M: send-gesture-tuple send-queued-gesture
38 [ gesture>> ] [ gadget>> ] bi handle-gesture drop ;
40 : queue-gesture ( ... class -- )
41 boa gesture-queue push-front notify-ui-thread ; inline
43 : send-gesture ( gesture gadget -- )
44 \ send-gesture-tuple queue-gesture ;
46 : each-gesture ( gesture seq -- ) [ send-gesture ] with each ;
48 TUPLE: propagate-gesture-tuple gesture gadget ;
50 : resend-gesture ( gesture gadget -- ? )
51 [ handle-gesture ] with each-parent ;
53 M: propagate-gesture-tuple send-queued-gesture
54 [ gesture>> ] [ gadget>> ] bi resend-gesture drop ;
56 : propagate-gesture ( gesture gadget -- )
57 \ propagate-gesture-tuple queue-gesture ;
59 TUPLE: propagate-key-gesture-tuple gesture world ;
61 : world-focus ( world -- gadget )
62 dup focus>> [ world-focus ] [ ] ?if ;
64 M: propagate-key-gesture-tuple send-queued-gesture
65 [ gesture>> ] [ world>> world-focus ] bi
66 [ handle-gesture ] with each-parent drop ;
68 : propagate-key-gesture ( gesture world -- )
69 \ propagate-key-gesture-tuple queue-gesture ;
71 TUPLE: user-input-tuple string world ;
73 M: user-input-tuple send-queued-gesture
74 [ string>> ] [ world>> world-focus ] bi
75 [ user-input* ] with each-parent drop ;
77 : user-input ( string world -- )
78 '[ _ \ user-input-tuple queue-gesture ] unless-empty ;
81 TUPLE: drag # ; C: <drag> drag
82 TUPLE: button-up mods # ; C: <button-up> button-up
83 TUPLE: button-down mods # ; C: <button-down> button-down
88 mouse-enter mouse-leave
89 lose-focus gain-focus ;
91 ! Higher-level actions
93 undo-action redo-action
94 cut-action copy-action paste-action
95 delete-action select-all-action
96 left-action right-action up-action down-action
97 zoom-in-action zoom-out-action
98 new-action open-action save-action save-as-action
99 revert-action close-action ;
102 undo-action redo-action
103 cut-action copy-action paste-action
104 delete-action select-all-action
105 left-action right-action up-action down-action
106 zoom-in-action zoom-out-action
107 new-action open-action save-action save-as-action
108 revert-action close-action ;
110 CONSTANT: action-gestures
117 { "a" select-all-action }
121 { "S" save-as-action }
126 SYMBOLS: C+ A+ M+ S+ ;
128 TUPLE: key-gesture mods sym ;
130 TUPLE: key-down < key-gesture ;
132 : new-key-gesture ( mods sym action? class -- mods' sym' )
133 [ [ [ S+ swap remove f like ] dip ] unless ] dip boa ; inline
135 : <key-down> ( mods sym action? -- key-down )
136 key-down new-key-gesture ;
138 TUPLE: key-up < key-gesture ;
140 : <key-up> ( mods sym action? -- key-up )
141 key-up new-key-gesture ;
145 ! Note that these are only really useful inside an event
146 ! handler, and that the locations hand-loc and hand-click-loc
147 ! are in the co-ordinate system of the world which contains
148 ! the gadget in question.
152 { 0 0 } hand-loc set-global
155 SYMBOL: hand-click-loc
157 SYMBOL: hand-last-button
158 SYMBOL: hand-last-time
159 0 hand-last-button set-global
160 0 hand-last-time set-global
163 V{ } clone hand-buttons set-global
165 SYMBOL: scroll-direction
166 { 0 0 } scroll-direction set-global
168 SYMBOL: double-click-timeout
169 300 milliseconds double-click-timeout set-global
171 : hand-moved? ( -- ? )
172 hand-loc get-global hand-click-loc get-global = not ;
174 : button-gesture ( gesture -- )
175 hand-clicked get-global propagate-gesture ;
177 : drag-gesture ( -- )
178 hand-buttons get-global
179 [ first <drag> button-gesture ] unless-empty ;
183 <box> drag-timer set-global
185 : start-drag-timer ( -- )
186 hand-buttons get-global empty? [
191 [ drag-timer get-global >box ]
195 : stop-drag-timer ( -- )
196 hand-buttons get-global empty? [
197 drag-timer get-global ?box
198 [ stop-timer ] [ drop ] if
202 hand-buttons get-global empty? [
203 motion hand-gadget get-global propagate-gesture
208 : hand-gestures ( new old -- )
209 drop-prefix <reversed>
210 mouse-leave swap each-gesture
211 mouse-enter swap each-gesture ;
213 : forget-rollover ( -- )
214 f hand-world set-global
215 hand-gadget get-global
216 [ f hand-gadget set-global f ] dip
217 parents hand-gestures ;
219 : send-lose-focus ( gadget -- )
220 lose-focus swap send-gesture ;
222 : send-gain-focus ( gadget -- )
223 gain-focus swap send-gesture ;
225 : focus-child ( child gadget ? -- )
238 : modifier ( mod modifiers -- seq )
239 [ second swap bitand 0 > ] with filter
240 0 <column> members [ f ] [ >array ] if-empty ;
242 : drag-loc ( -- loc )
243 hand-loc get-global hand-click-loc get-global v- ;
245 : hand-rel ( gadget -- loc )
246 hand-loc get-global swap screen-loc v- ;
248 : hand-click-rel ( gadget -- loc )
249 hand-click-loc get-global swap screen-loc v- ;
251 : multi-click-timeout? ( -- ? )
252 nano-count hand-last-time get - nanoseconds
253 double-click-timeout get before=? ;
255 : multi-click-button? ( button -- button ? )
256 dup hand-last-button get = ;
258 : multi-click-position? ( -- ? )
259 hand-loc get-global hand-click-loc get-global distance 10 <= ;
261 : multi-click? ( button -- ? )
263 [ multi-click-timeout? ]
264 [ multi-click-button? ]
265 [ multi-click-position? ]
268 : update-click# ( button -- )
276 nano-count hand-last-time set
279 : update-clicked ( -- )
280 hand-gadget get-global hand-clicked set-global
281 hand-loc get-global hand-click-loc set-global ;
283 : under-hand ( -- seq )
284 hand-gadget get-global parents <reversed> ;
286 : move-hand ( loc world -- )
287 dup hand-world set-global
289 over hand-loc set-global
290 pick-up hand-gadget set-global
292 ] dip hand-gestures ;
294 : send-button-down ( gesture loc world -- )
298 dup update-click# hand-buttons get-global push
302 : send-button-up ( gesture loc world -- )
304 dup #>> hand-buttons get-global remove! drop
308 : send-scroll ( direction loc world -- )
310 scroll-direction set-global
311 mouse-scroll hand-gadget get-global propagate-gesture ;
313 : send-action ( world gesture -- )
314 swap world-focus propagate-gesture ;
316 GENERIC: gesture>string ( gesture -- string/f )
318 HOOK: modifiers>string os ( modifiers -- string )
320 M: macosx modifiers>string
323 { A+ [ "\u002318" ] }
324 { M+ [ "\u002325" ] }
325 { S+ [ "\u0021e7" ] }
326 { C+ [ "\u002303" ] }
330 M: object modifiers>string
331 [ name>> ] map "" concat-as ;
333 HOOK: keysym>string os ( keysym -- string )
335 M: macosx keysym>string >upper ;
337 M: object keysym>string dup length 1 = [ >lower ] when ;
339 M: key-down gesture>string
340 [ mods>> ] [ sym>> ] bi
342 { [ dup { [ length 1 = ] [ first LETTER? ] } 1&& ] [ [ S+ prefix ] dip ] }
343 { [ dup " " = ] [ drop "SPACE" ] }
346 [ modifiers>string ] [ keysym>string ] bi* append ;
348 M: button-up gesture>string
350 dup mods>> modifiers>string %
352 #>> [ " " % # ] when*
355 M: button-down gesture>string
357 dup mods>> modifiers>string %
359 #>> [ " " % # ] when*
362 M: left-action gesture>string drop "Swipe left" ;
364 M: right-action gesture>string drop "Swipe right" ;
366 M: up-action gesture>string drop "Swipe up" ;
368 M: down-action gesture>string drop "Swipe down" ;
370 M: zoom-in-action gesture>string drop "Zoom in" ;
372 M: zoom-out-action gesture>string drop "Zoom out (pinch)" ;
374 HOOK: action-modifier os ( -- mod )
376 M: object action-modifier C+ ;
377 M: macosx action-modifier A+ ;
379 M: action gesture>string
380 action-gestures value-at
381 action-modifier 1array
382 swap f <key-down> gesture>string ;
384 M: object gesture>string drop f ;