diff options
Diffstat (limited to 'lisp/term/android-win.el')
| -rw-r--r-- | lisp/term/android-win.el | 186 |
1 files changed, 162 insertions, 24 deletions
diff --git a/lisp/term/android-win.el b/lisp/term/android-win.el index 51163e5b9b2..6512ef81ff7 100644 --- a/lisp/term/android-win.el +++ b/lisp/term/android-win.el @@ -282,11 +282,12 @@ If it reflects the motion of an item above a frame, call `dnd-handle-movement' to move the cursor or scroll the window under the item pursuant to the pertinent user options. -If it reflects dropped text, insert such text within window at -the location of the drop. +If it holds dropped text, insert such text within window at the +location of the drop. -If it reflects a list of URIs, then open each URI, converting -content:// URIs into the special file names which represent them." +If it holds a list of URIs, or file names, then open each URI or +file name, converting content:// URIs into the special file +names which represent them." (interactive "e") (let ((message (caddr event)) (posn (event-start event))) @@ -304,18 +305,22 @@ content:// URIs into the special file names which represent them." (new-uri-list nil) (dnd-unescape-file-uris t)) (dolist (uri uri-list) - (ignore-errors - (let ((url (url-generic-parse-url uri))) - (when (equal (url-type url) "content") - ;; Replace URI with a matching /content file - ;; name. - (setq uri (format "file:/content/by-authority/%s%s" - (url-host url) - (url-filename url)) - ;; And guarantee that this file URI is not - ;; subject to URI decoding, for it must be - ;; transformed back into a content URI. - dnd-unescape-file-uris nil)))) + ;; If the URI is a preprepared file name, insert it directly. + (if (string-match-p "^/content/by-authority\\(-named\\)?/" uri) + (setq uri (concat "file:" uri) + dnd-unescape-file-uris nil) + (ignore-errors + (let ((url (url-generic-parse-url uri))) + (when (equal (url-type url) "content") + ;; Replace URI with a matching /content file + ;; name. + (setq uri (format "file:/content/by-authority/%s%s" + (url-host url) + (url-filename url)) + ;; And guarantee that this file URI is not + ;; subject to URI decoding, for it must be + ;; transformed back into a content URI. + dnd-unescape-file-uris nil))))) (push uri new-uri-list)) (dnd-handle-multiple-urls (posn-window posn) new-uri-list @@ -398,7 +403,7 @@ directory /content/storage. (inhibit-read-only t)) (fill-region (point-min) (point-max)))))))) -(defun android-after-splash-screen (fancy-p) +(defun android-before-splash-screen (fancy-p) "Insert a brief notice on the absence of storage permissions. If storage permissions are as yet denied to Emacs, insert a short notice to that effect, followed by a button that enables the user @@ -406,20 +411,20 @@ to grant such permissions. FANCY-P non-nil means the notice will be displayed with faces, in the style appropriate for its incorporation within the fancy splash -screen display; see `francy-splash-insert'." +screen display; see `fancy-splash-insert'." (unless (android-external-storage-available-p) (if fancy-p (fancy-splash-insert :face '(variable-pitch font-lock-function-call-face) - "\nPermissions necessary to access external storage directories have -been denied. Click " + "Permissions necessary to access external storage directories have" + "\nbeen denied. Click " :link '("here" android-display-storage-permission-popup) - " to grant them.") + " to grant them.\n") (insert - "Permissions necessary to access external storage directories have been -denied. ") - (insert-button "Click here to grant them." + "Permissions necessary to access external storage directories" + "\nhave been denied. ") + (insert-button "Click here to grant them.\n" 'action #'android-display-storage-permission-popup 'follow-link t) (newline)))) @@ -480,5 +485,138 @@ the UTF-8 coding system." (concat locale-base locale-modifier))) +;; Miscellaneous functions. + +(declare-function android-browse-url-internal "androidselect.c") + +(defun android-browse-url (url &optional send) + "Open URL in an external application. + +URL should be a URL-encoded URL with a scheme specified unless +SEND is non-nil. Signal an error upon failure. + +If SEND is nil, start a program that is able to display the URL, +such as a web browser. Otherwise, try to share URL using +programs such as email clients. + +If URL is a file URI, convert it into a `content' address +accessible to other programs." + (when-let* ((uri (url-generic-parse-url url)) + (filename (url-filename uri)) + ;; If `uri' is a file URI and the file resides in /content + ;; or /assets, copy it to a temporary file before + ;; providing it to other programs. + (replacement-url (and (string-match-p + "/\\(content\\|assets\\)[/$]" + filename) + (prog1 t + (copy-file + filename + (setq filename + (make-temp-file + "local" + nil + (let ((extension + (file-name-extension + filename))) + (if extension + (concat "." + extension) + nil)))) + t)) + (concat "file://" filename)))) + (setq url replacement-url)) + (android-browse-url-internal url send)) + + +;; Coding systems used by androidvfs.c. + +(define-ccl-program android-encode-jni + `(2 ((loop + (read r0) + (if (r0 < #x1) ; 0x0 is encoded specially in JNI environments. + ((write #xc0) + (write #x80)) + ((if (r0 < #x80) ; ASCII + ((write r0)) + (if (r0 < #x800) ; \u0080 - \u07ff + ((write ((r0 >> 6) | #xC0)) + (write ((r0 & #x3F) | #x80))) + ;; \u0800 - \uFFFF + (if (r0 < #x10000) + ((write ((r0 >> 12) | #xE0)) + (write (((r0 >> 6) & #x3F) | #x80)) + (write ((r0 & #x3F) | #x80))) + ;; Supplementary characters must be converted into + ;; surrogate pairs before encoding. + (;; High surrogate + (r1 = ((((r0 - #x10000) >> 10) & #x3ff) + #xD800)) + ;; Low surrogate. + (r2 = (((r0 - #x10000) & #x3ff) + #xDC00)) + ;; Write both surrogate characters. + (write ((r1 >> 12) | #xE0)) + (write (((r1 >> 6) & #x3F) | #x80)) + (write ((r1 & #x3F) | #x80)) + (write ((r2 >> 12) | #xE0)) + (write (((r2 >> 6) & #x3F) | #x80)) + (write ((r2 & #x3F) | #x80)))))))) + (repeat)))) + "Encode characters from the input buffer for Java virtual machines.") + +(define-ccl-program android-decode-jni + `(1 ((loop + ((read-if (r0 >= #x80) ; More than a one-byte sequence? + ((if (r0 < #xe0) + ;; Two-byte sequence; potentially a NULL + ;; character. + ((read r4) + (r4 &= #x3f) + (r0 = (((r0 & #x1f) << 6) | r4))) + (if (r0 < ?\xF0) + ;; Three-byte sequence, after which surrogate + ;; pairs should be processed. + ((read r4 r6) + (r4 = ((r4 & #x3f) << 6)) + (r6 &= #x3f) + (r0 = ((((r0 & #xf) << 12) | r4) | r6))) + ;; Four-byte sequences are not valid under the + ;; JVM specification, but Android produces them + ;; when encoding Emoji characters for being + ;; supposedly less of a surprise to applications. + ;; This is obviously not true of programs written + ;; to the letter of the documentation, but 50 + ;; million Frenchmen make a right (and this + ;; deviation from the norm is predictably absent + ;; from Android's documentation on the subject). + ((read r1 r4 r6) + (r1 = ((r1 & #x3f) << 12)) + (r4 = ((r4 & #x3f) << 6)) + (r6 &= #x3F) + (r0 = (((((r0 & #x07) << 18) | r1) | r4) | r6)))))))) + (if ((r0 & #xf800) == #xd800) + ;; High surrogate. + ((read-if (r2 >= #xe0) + ((r0 = ((r0 & #x3ff) << 10)) + (read r4 r6) + (r4 = ((r4 & #x3f) << 6)) + (r6 &= #x3f) + (r1 = ((((r2 & #xf) << 12) | r4) | r6)) + (r0 = (((r1 & #x3ff) | r0) + #xffff)))))) + (write r0) + (repeat)))) + "Decode JVM-encoded characters in the input buffer.") + +(define-coding-system 'android-jni + "CESU-8 based encoding for communication with the Android runtime." + :mnemonic ?J + :coding-type 'ccl + :eol-type 'unix + :ascii-compatible-p nil ; for \0 is encoded as a two-byte sequence. + :default-char ?\0 + :charset-list '(unicode) + :ccl-decoder 'android-decode-jni + :ccl-encoder 'android-encode-jni) + + (provide 'android-win) ;; android-win.el ends here. |