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(setq zero-input-can-start-sequence-func
(or (cdr (assq :can-start-sequence im-functions))
'zero-input-can-start-sequence-default))
(setq zero-input-handle-preedit-char-func
(or (cdr (assq :handle-preedit-char im-functions))
'zero-input-handle-preedit-char-default))
(setq zero-input-get-preedit-str-for-panel-func
(or (cdr (assq :get-preedit-str-for-panel im-functions))
'zero-input-get-preedit-str-for-panel-default))
(setq zero-input-backspace-func
(or (cdr (assq :handle-backspace im-functions))
'zero-input-backspace-default))
(setq zero-input-preedit-start-func
(cdr (assq :preedit-start im-functions)))
(setq zero-input-preedit-end-func
(cdr (assq :preedit-end im-functions)))
(unless (functionp zero-input-backspace-func)
(signal 'wrong-type-argument
(list 'functionp zero-input-backspace-func)))
;; when switch to a IM, run its :init function
(let ((init-func (cdr (assq :init im-functions))))
(if (functionp init-func)
(funcall init-func)))
(error "Input method %S not registered in zero" im-name))))))
;;;###autoload
(defun zero-input-set-default-im (im-name)
"Set given IM-NAME as default zero input method."
(unless (symbolp im-name)
(signal 'wrong-type-argument (list 'symbolp im-name)))
(setq-default zero-input-im im-name))
;;;###autoload
(defun zero-input-on ()
"Turn on `zero-input-mode'."
(interactive)
(defun zero-input-off ()
"Turn off `zero-input-mode'."
(interactive)
(define-obsolete-function-alias 'zero-input-toggle 'zero-input-mode
"Zero-input v2.0.2" "Toggle `zero-input-mode'.")
(provide 'zero-input-framework)
;; body of zero-input-table.el
;;==============
;; dependencies
;;==============
;;===============================
;; basic data and emacs facility
;;===============================
(defvar zero-input-table-table nil
"The table used by zero-input-table input method, map string to string.")
(defvar zero-input-table-sequence-initials nil
"Used in `zero-input-table-can-start-sequence'.")
;;=====================
;; key logic functions
;;=====================
(defun zero-input-table-sort-key (lhs rhs)
"A predicate function to sort candidates. Return t if LHS should sort before RHS."
(string< (car lhs) (car rhs)))
(defun zero-input-table-build-candidates (preedit-str &optional _fetch-size)
"Build candidates by looking up PREEDIT-STR in `zero-input-table-table'."
(mapcar 'cdr (sort (cl-remove-if-not #'(lambda (pair) (string-prefix-p preedit-str (car pair))) zero-input-table-table) 'zero-input-table-sort-key)))
;; (defun zero-input-table-build-candidates-async (preedit-str)
;; "build candidate list, when done show it via `zero-input-table-show-candidates'"
;; (zero-input-table-debug "building candidate list\n")
;; (let ((candidates (zero-input-table-build-candidates preedit-str)))
;; ;; update cache to make SPC and digit key selection possible.
;; (setq zero-input-table-candidates candidates)
;; (zero-input-table-show-candidates candidates)))
(defun zero-input-table-can-start-sequence (ch)
"Return t if char CH can start a preedit sequence."
(member (make-string 1 ch) zero-input-table-sequence-initials))
;;===============================
;; register IM to zero framework
;;===============================
(zero-input-register-im
'((:build-candidates . zero-input-table-build-candidates)
(:can-start-sequence . zero-input-table-can-start-sequence)))
;;============
;; public API
;;============
(defun zero-input-table-set-table (alist)
"Set the conversion table.
the ALIST should be a list of (key . value) pairs. when user type
\(part of) key, the IM will show all matching value.
To use demo data, you can call:
\(zero-input-table-set-table
\\='((\"phone\" . \"18612345678\")
(\"mail\" . \"foo@example.com\")
(\"map\" . \"https://ditu.amap.com/\")
(\"m\" . \"https://msdn.microsoft.com/en-us\")
(\"address\" . \"123 Happy Street\")))"
(setq zero-input-table-table alist)
(setq zero-input-table-sequence-initials
(delete-dups (mapcar #'(lambda (pair) (substring (car pair) 0 1))
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zero-input-table-table))))
(provide 'zero-input-table)
;; body of zero-input-pinyin-service.el
;;================
;; implementation
;;================
(defvar zero-input-pinyin-service-service-name
"com.emacsos.zero.ZeroPinyinService1")
(defvar zero-input-pinyin-service-path
"/com/emacsos/zero/ZeroPinyinService1")
(defvar zero-input-pinyin-service-interface
"com.emacsos.zero.ZeroPinyinService1.ZeroPinyinServiceInterface")
(defvar zero-input-pinyin-fuzzy-flag 0)
(defun zero-input-pinyin-service-error-handler (event error)
"Handle dbus errors.
EVENT, ERROR are arguments passed to the handler."
(when (or (string-equal zero-input-pinyin-service-service-name
(dbus-event-interface-name event))
(s-contains-p zero-input-pinyin-service-service-name (cadr error)))
(error "`zero-input-pinyin-service' dbus failed: %S" (cadr error))))
(add-hook 'dbus-event-error-functions 'zero-input-pinyin-service-error-handler)
(defun zero-input-pinyin-service-async-call (method handler &rest args)
"Call METHOD on `zero-input-pinyin-service' asynchronously.
This is a wrapper around `dbus-call-method-asynchronously'.
Argument HANDLER the handler function.
Optional argument ARGS extra arguments to pass to the wrapped function."
(apply 'dbus-call-method-asynchronously
:session zero-input-pinyin-service-service-name
zero-input-pinyin-service-path
zero-input-pinyin-service-interface
method handler :timeout 1000 args))
(defun zero-input-pinyin-service-call (method &rest args)
"Call METHOD on `zero-input-pinyin-service' synchronously.
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This is a wrapper around `dbus-call-method'.
Optional argument ARGS extra arguments to pass to the wrapped function."
(apply 'dbus-call-method
:session zero-input-pinyin-service-service-name
zero-input-pinyin-service-path
zero-input-pinyin-service-interface
method :timeout 1000 args))
;;============
;; public API
;;============
(defun zero-input-pinyin-service-get-candidates (preedit-str fetch-size)
"Get candidates for pinyin in PREEDIT-STR synchronously.
preedit-str the preedit-str, should be pure pinyin string
FETCH-SIZE try to fetch this many candidates or more"
(zero-input-pinyin-service-call "GetCandidatesV2" :string preedit-str :uint32 fetch-size :uint32 zero-input-pinyin-fuzzy-flag))
(defun zero-input-pinyin-service-get-candidates-async (preedit-str fetch-size get-candidates-complete)
"Get candidates for pinyin in PREEDIT-STR asynchronously.
PREEDIT-STR the preedit string, should be pure pinyin string.
FETCH-SIZE try to fetch this many candidates or more.
GET-CANDIDATES-COMPLETE the async handler function."
(zero-input-pinyin-service-async-call
"GetCandidatesV2" get-candidates-complete :string preedit-str :uint32 fetch-size :uint32 zero-input-pinyin-fuzzy-flag))
(defun zero-input-pinyin-candidate-pinyin-indices-to-dbus-format (candidate_pinyin_indices)
"Convert CANDIDATE_PINYIN_INDICES to Emacs dbus format."
(let (result)
(push :array result)
;; (push :signature result)
;; (push "(ii)" result)
(dolist (pypair candidate_pinyin_indices)
(push (list :struct :int32 (cl-first pypair) :int32 (cl-second pypair))
result))
(reverse result)))
(defun zero-input-pinyin-service-commit-candidate-async (candidate candidate_pinyin_indices)
"Commit candidate asynchronously.
CANDIDATE the candidate user selected.
CANDIDATE_PINYIN_INDICES the candidate's pinyin shengmu and yunmu index."
;; don't care about the result, so no callback.
(zero-input-pinyin-service-async-call
"CommitCandidate" nil
:string candidate
(zero-input-pinyin-candidate-pinyin-indices-to-dbus-format candidate_pinyin_indices)))
(defun zero-input-pinyin-service-delete-candidates-async (candidate delete-candidate-complete)
"Delete CANDIDATE asynchronously.
DELETE-CANDIDATE-COMPLETE the async handler function."
(zero-input-pinyin-service-async-call
"DeleteCandidate" delete-candidate-complete :string candidate))
(defun zero-input-pinyin-service-quit ()
"Quit panel application."
(zero-input-pinyin-service-async-call "Quit" nil))
(provide 'zero-input-pinyin-service)
;; body of zero-input-pinyin.el
;;==============
;; dependencies
;;==============
;;===============================
;; basic data and emacs facility
;;===============================
(defcustom zero-input-pinyin-fuzzy-flag 0
"Non-nil means enable fuzzy pinyin when calling zero pinyin service.
Fuzzy pinyin means some shengmu and some yunmu could be used
interchangeably, such as zh <-> z, l <-> n.
For supported values, please see zero-input-pinyin-service dbus
interface xml comment for GetCandidatesV2 method fuzzy_flag param.
You can find the xml file locally at
/usr/share/dbus-1/interfaces/\
com.emacsos.zero.ZeroPinyinService1.ZeroPinyinServiceInterface.xml
or online at
https://gitlab.emacsos.com/sylecn/zero-pinyin-service/\
blob/master/com.emacsos.zero.ZeroPinyinService1.ZeroPinyinServiceInterface.xml"
:group 'zero-input-pinyin
:type 'integer)
(defvar zero-input-pinyin-use-async-fetch nil
"Non-nil means use async dbus call to get candidates.")
(setq zero-input-pinyin-use-async-fetch nil)
(defvar-local zero-input-pinyin-state nil
"Zero-input-pinyin internal state. could be nil or
`zero-input-pinyin--state-im-partial-commit'.")
(defconst zero-input-pinyin--state-im-partial-commit 'IM-PARTIAL-COMMIT)
(defvar zero-input-pinyin-used-preedit-str-lengths nil
"Accompany `zero-input-candidates', marks how many preedit-str chars are used for each candidate.")
(defvar zero-input-pinyin-candidates-pinyin-indices nil
"Store GetCandidates dbus method candidates_pinyin_indices field.")
(defvar zero-input-pinyin-pending-str "")
(defvar zero-input-pinyin-pending-preedit-str "")
(defvar zero-input-pinyin-pending-pinyin-indices nil
"Store `zero-input-pinyin-pending-str' corresponds pinyin indices.")
;;=====================
;; key logic functions
;;=====================
(defun zero-input-pinyin-reset ()
"Reset states."
(setq zero-input-pinyin-state nil)
(setq zero-input-pinyin-used-preedit-str-lengths nil)
(setq zero-input-pinyin-pending-str "")
(setq zero-input-pinyin-pending-preedit-str ""))
(defun zero-input-pinyin-init ()
"Called when this im is turned on."
(zero-input-pinyin-reset))
(defun zero-input-pinyin-preedit-start ()
"Called when enter `zero-input--state-im-preediting' state."
(define-key zero-input-mode-map [remap digit-argument] 'zero-input-digit-argument))
(defun zero-input-pinyin-preedit-end ()
"Called when leave `zero-input--state-im-preediting' state."
(define-key zero-input-mode-map [remap digit-argument] nil))
(defun zero-input-pinyin-shutdown ()
"Called when this im is turned off."
(define-key zero-input-mode-map [remap digit-argument] nil))
(defun zero-input-pinyin-build-candidates (preedit-str fetch-size)
"Synchronously build candidates list.
PREEDIT-STR the preedit string.
FETCH-SIZE fetch at least this many candidates if possible.
Return candidates list"
(zero-input-debug "zero-input-pinyin building candidate list synchronously\n")
(let ((result (zero-input-pinyin-service-get-candidates preedit-str fetch-size)))
;; update zero-input-candidates and zero-input-fetch-size is done in async
;; complete callback. This function only care about building the
;; candidates and updating zero-input-pinyin specific.
(setq zero-input-pinyin-used-preedit-str-lengths (cl-second result))
(setq zero-input-pinyin-candidates-pinyin-indices (cl-third result))
(cl-first result)))
(defun zero-input-pinyin-build-candidates-async (preedit-str fetch-size complete-func)
"Asynchronously build candidate list, when done call complete-func on it.
PREEDIT-STR the preedit string.
FETCH-SIZE fetch at least this many candidates if possible.
COMPLETE-FUNC the callback function when async call completes. it's called with
fetched candidates list as parameter."
(zero-input-debug "zero-input-pinyin building candidate list asynchronously\n")
(zero-input-pinyin-service-get-candidates-async
preedit-str
fetch-size
#'(lambda (candidates matched_preedit_str_lengths candidates_pinyin_indices)
(setq zero-input-candidates candidates)
(setq zero-input-fetch-size (max fetch-size (length candidates)))
(setq zero-input-pinyin-used-preedit-str-lengths matched_preedit_str_lengths)
(setq zero-input-pinyin-candidates-pinyin-indices candidates_pinyin_indices)
;; Note: with dynamic binding, this command result in (void-variable
;; complete-func) error.
(funcall complete-func candidates))))
(defun zero-input-pinyin-can-start-sequence (ch)
"Return t if char CH can start a preedit sequence."
(and (>= ch ?a)
(<= ch ?z)
(not (= ch ?i))
(not (= ch ?u))
(not (= ch ?v))))
(defun zero-input-pinyin-build-candidates-unified (preedit-str fetch-size complete-func)
"Build candidate list, when done call complete-func on it.
This may call sync or async dbus method depending on
`zero-input-pinyin-use-async-fetch'.
PREEDIT-STR the preedit string.
FETCH-SIZE fetch at least this many candidates if possible.
COMPLETE-FUNC the callback function when sync/async call completes.
it's called with fetched candidates list as parameter."
(if zero-input-pinyin-use-async-fetch
(zero-input-pinyin-build-candidates-async
preedit-str fetch-size complete-func)
(let ((candidates (zero-input-pinyin-build-candidates
preedit-str fetch-size)))
(setq zero-input-candidates candidates)
(setq zero-input-fetch-size (max fetch-size (length candidates)))
(funcall complete-func candidates))))
(defun zero-input-pinyin-pending-preedit-str-changed ()
"Update zero states when pending preedit string changed."
(setq zero-input-fetch-size 0)
(setq zero-input-current-page 0)
(let ((fetch-size (zero-input-get-initial-fetch-size))
(preedit-str zero-input-pinyin-pending-preedit-str))
(zero-input-pinyin-build-candidates-unified
preedit-str fetch-size
#'zero-input-show-candidates)))
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(defun zero-input-pinyin-commit-nth-candidate (n)
"Commit Nth candidate and return true if it exists, otherwise, return false."
(let* ((n-prime (+ n (* zero-input-candidates-per-page zero-input-current-page)))
(candidate (nth n-prime zero-input-candidates))
(used-len (when candidate
(nth n-prime zero-input-pinyin-used-preedit-str-lengths))))
(when candidate
(zero-input-debug
"zero-input-pinyin-commit-nth-candidate\n n=%s candidate=%s used-len=%s zero-input-pinyin-pending-preedit-str=%S\n"
n candidate used-len zero-input-pinyin-pending-preedit-str)
(cond
((null zero-input-pinyin-state)
(if (= used-len (length zero-input-preedit-str))
(progn
(zero-input-debug "commit in full\n")
(zero-input-set-state zero-input--state-im-waiting-input)
(zero-input-commit-text candidate)
(zero-input-pinyin-service-commit-candidate-async
candidate
(nth n-prime zero-input-pinyin-candidates-pinyin-indices))
t)
(zero-input-debug "partial commit, in partial commit mode now.\n")
(setq zero-input-pinyin-state zero-input-pinyin--state-im-partial-commit)
(setq zero-input-pinyin-pending-str candidate)
(setq zero-input-pinyin-pending-preedit-str (substring zero-input-preedit-str used-len))
(setq zero-input-pinyin-pending-pinyin-indices
(nth n-prime zero-input-pinyin-candidates-pinyin-indices))
(zero-input-pinyin-pending-preedit-str-changed)
t))
((eq zero-input-pinyin-state zero-input-pinyin--state-im-partial-commit)
(if (= used-len (length zero-input-pinyin-pending-preedit-str))
(progn
(zero-input-debug "finishes partial commit\n")
(setq zero-input-pinyin-state nil)
(zero-input-set-state zero-input--state-im-waiting-input)
(zero-input-commit-text (concat zero-input-pinyin-pending-str candidate))
(zero-input-pinyin-service-commit-candidate-async
(concat zero-input-pinyin-pending-str candidate)
(append zero-input-pinyin-pending-pinyin-indices
(nth n-prime zero-input-pinyin-candidates-pinyin-indices)))
t)
(zero-input-debug "continue partial commit\n")
(setq zero-input-pinyin-pending-str (concat zero-input-pinyin-pending-str candidate))
(setq zero-input-pinyin-pending-preedit-str (substring zero-input-pinyin-pending-preedit-str used-len))
(setq zero-input-pinyin-pending-pinyin-indices
(append zero-input-pinyin-pending-pinyin-indices
(nth n-prime zero-input-pinyin-candidates-pinyin-indices)))
(zero-input-pinyin-service-commit-candidate-async
zero-input-pinyin-pending-str
zero-input-pinyin-pending-pinyin-indices)
(zero-input-pinyin-pending-preedit-str-changed)
t))
(t (error "Unexpected zero-input-pinyin-state: %s" zero-input-pinyin-state))))))
(defun zero-input-pinyin-commit-first-candidate-or-preedit-str ()
"Commit first candidate if there is one, otherwise, commit preedit string."
(unless (zero-input-pinyin-commit-nth-candidate 0)
(zero-input-commit-preedit-str)))
(defun zero-input-pinyin-commit-first-candidate-in-full ()
"Commit first candidate and return t if it consumes all preedit-str.
Otherwise, just return nil."
(let ((candidate (nth 0 (zero-input-candidates-on-page zero-input-candidates)))
(used-len (nth (* zero-input-candidates-per-page zero-input-current-page) zero-input-pinyin-used-preedit-str-lengths)))
(when candidate
(cond
((null zero-input-pinyin-state)
(when (= used-len (length zero-input-preedit-str))
(zero-input-set-state zero-input--state-im-waiting-input)
(zero-input-commit-text candidate)
t))
((eq zero-input-pinyin-state zero-input-pinyin--state-im-partial-commit)
(when (= used-len (length zero-input-pinyin-pending-preedit-str))
(setq zero-input-pinyin-state nil)
(zero-input-set-state zero-input--state-im-waiting-input)
(zero-input-commit-text (concat zero-input-pinyin-pending-str candidate))
t))
(t (error "Unexpected zero-input-pinyin-state: %s" zero-input-pinyin-state))))))
(defun zero-input-pinyin-page-down ()
"Handle page down for zero-input-pinyin.
This is different from zero-input-framework because I need to support partial commit"
(let ((len (length zero-input-candidates))
(new-fetch-size (1+ (* zero-input-candidates-per-page (+ 2 zero-input-current-page)))))
;; (zero-input-debug
;; "fetch more candidates? on page %s, has %s candidates, last-fetch-size=%s, new-fetch-size=%s\n"
;; zero-input-current-page len zero-input-fetch-size new-fetch-size)
(if (and (< len new-fetch-size)
(< zero-input-fetch-size new-fetch-size))
(let ((preedit-str (if (eq zero-input-pinyin-state
zero-input-pinyin--state-im-partial-commit)
zero-input-pinyin-pending-preedit-str
zero-input-preedit-str)))
(zero-input-debug
"will fetch more candidates new-fetch-size=%s\n" new-fetch-size)
(zero-input-pinyin-build-candidates-unified
#'(lambda (_candidates)
(zero-input-just-page-down))))
(zero-input-debug "won't fetch more candidates\n")
(zero-input-just-page-down))))
(defun zero-input-pinyin-handle-preedit-char (ch)
"Hanlde character insert in `zero-input--state-im-preediting' state.
Override `zero-input-handle-preedit-char-default'.
CH the character user typed."
(cond
((= ch ?\s)
(zero-input-pinyin-commit-first-candidate-or-preedit-str))
((and (>= ch ?0) (<= ch ?9))
;; 1 commit the 0th candidate
;; 2 commit the 1st candidate
;; ...
;; 0 commit the 9th candidate
(unless (zero-input-pinyin-commit-nth-candidate (mod (- (- ch ?0) 1) 10))
(zero-input-append-char-to-preedit-str ch)
(setq zero-input-pinyin-state nil)))
((= ch zero-input-previous-page-key)
(zero-input-handle-preedit-char-default ch))
((= ch zero-input-next-page-key)
(zero-input-pinyin-page-down))
(t (let ((str (zero-input-convert-punctuation ch)))
;; ?' is used as pinyin substring separator, never auto commit on ?'
;; insert when pre-editing.
(if (and str (not (eq ch ?')))
(when (zero-input-pinyin-commit-first-candidate-in-full)
(zero-input-set-state zero-input--state-im-waiting-input)
(insert str))
(setq zero-input-pinyin-state nil)
(zero-input-append-char-to-preedit-str ch))))))
(defun zero-input-pinyin-get-preedit-str-for-panel ()
"Return the preedit string that should show in panel."
(if (eq zero-input-pinyin-state zero-input-pinyin--state-im-partial-commit)
(concat zero-input-pinyin-pending-str zero-input-pinyin-pending-preedit-str)
zero-input-preedit-str))
(defun zero-input-pinyin-preedit-str-changed ()
"Start over for candidate selection process."
(setq zero-input-pinyin-state nil)
(zero-input-preedit-str-changed))
(defun zero-input-pinyin-backspace ()
"Handle backspace key in `zero-input--state-im-preediting' state."
(if (eq zero-input-pinyin-state zero-input-pinyin--state-im-partial-commit)
(zero-input-pinyin-preedit-str-changed)
(zero-input-backspace-default)))
(defun zero-input-pinyin-delete-candidate (digit)
"Tell backend to delete candidate at DIGIT position.
DIGIT is the digit key used to select nth candidate.
DIGIT 1 means delete 1st candidate.
DIGIT 2 means delete 2st candidate.
...
DIGIT 0 means delete 10th candidate."
(let ((candidate (nth (mod (- digit 1) 10)
(zero-input-candidates-on-page zero-input-candidates))))
(when candidate
(zero-input-pinyin-service-delete-candidates-async
candidate 'zero-input-pinyin-preedit-str-changed))))
(defun zero-input-digit-argument ()
"Allow C-<digit> to DeleteCandidate in `zero-input--state-im-preediting' state."
(interactive)
(unless (eq zero-input-state zero-input--state-im-preediting)
(error "`zero-input-digit-argument' called in non preediting state"))
(if (memq 'control (event-modifiers last-command-event))
(let* ((char (if (integerp last-command-event)
last-command-event
(get last-command-event 'ascii-character)))
(digit (- (logand char ?\177) ?0)))
(zero-input-pinyin-delete-candidate digit))))
;;===============================
;; register IM to zero framework
;;===============================
(defun zero-input-pinyin-register-im ()
"Register pinyin input method in zero framework."
(zero-input-register-im
(append
(if zero-input-pinyin-use-async-fetch
'((:build-candidates-async . zero-input-pinyin-build-candidates-async))
nil)
'((:build-candidates . zero-input-pinyin-build-candidates)
(:can-start-sequence . zero-input-pinyin-can-start-sequence)
(:handle-preedit-char . zero-input-pinyin-handle-preedit-char)
(:get-preedit-str-for-panel . zero-input-pinyin-get-preedit-str-for-panel)
(:handle-backspace . zero-input-pinyin-backspace)
(:init . zero-input-pinyin-init)
(:shutdown . zero-input-pinyin-shutdown)
(:preedit-start . zero-input-pinyin-preedit-start)
(:preedit-end . zero-input-pinyin-preedit-end)))))
(zero-input-pinyin-register-im)
;;============
;; public API
;;============
(defun zero-input-pinyin-enable-async ()
"Use async call to fetch candidates."
(interactive)
(setq zero-input-pinyin-use-async-fetch t)
(zero-input-pinyin-register-im)
(message "Enabled async mode"))
(defun zero-input-pinyin-disable-async ()
"Use sync call to fetch candidates."
(interactive)
(setq zero-input-pinyin-use-async-fetch nil)
(zero-input-pinyin-register-im)
(message "Disabled async mode"))
(provide 'zero-input-pinyin)
(provide 'zero-input)
;;; zero-input.el ends here