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[PATCH 3/6] Implement zoom for WebKit widget
From: |
Ricardo Wurmus |
Subject: |
[PATCH 3/6] Implement zoom for WebKit widget |
Date: |
Wed, 21 Sep 2016 13:50:15 +0200 |
* src/xwidget.c (xwidget-webkit-zoom): New procedure.
* lisp/xwidget.el: Bind "+" and "-" to zoom in and out, respectively.
(xwidget-webkit-zoom): Declare procedure.
(xwidget-webkit-zoom-in, xwidget-webkit-zoom-out): New procedures.
---
lisp/xwidget.el | 13 +++++++++++++
src/xwidget.c | 20 ++++++++++++++++++++
2 files changed, 33 insertions(+)
diff --git a/lisp/xwidget.el b/lisp/xwidget.el
index ba05a16..0892030 100644
--- a/lisp/xwidget.el
+++ b/lisp/xwidget.el
@@ -42,6 +42,7 @@
(declare-function xwidget-resize "xwidget.c" (xwidget new-width new-height))
(declare-function xwidget-webkit-execute-script "xwidget.c" (xwidget script))
(declare-function xwidget-webkit-goto-uri "xwidget.c" (xwidget uri))
+(declare-function xwidget-webkit-zoom "xwidget.c" (xwidget factor))
(declare-function xwidget-plist "xwidget.c" (xwidget))
(declare-function set-xwidget-plist "xwidget.c" (xwidget plist))
(declare-function xwidget-view-window "xwidget.c" (xwidget-view))
@@ -106,6 +107,8 @@ Interactively, URL defaults to the string looking like a
url around point."
(define-key map "t" (lambda () (interactive) (message "o"))) ;FIXME: ?!?
(define-key map "\C-m" 'xwidget-webkit-insert-string)
(define-key map "w" 'xwidget-webkit-current-url)
+ (define-key map "+" 'xwidget-webkit-zoom-in)
+ (define-key map "-" 'xwidget-webkit-zoom-out)
;;similar to image mode bindings
(define-key map (kbd "SPC") 'xwidget-webkit-scroll-up)
@@ -131,6 +134,16 @@ Interactively, URL defaults to the string looking like a
url around point."
map)
"Keymap for `xwidget-webkit-mode'.")
+(defun xwidget-webkit-zoom-in ()
+ "Increase webkit view zoom factor."
+ (interactive)
+ (xwidget-webkit-zoom (xwidget-webkit-current-session) 0.1))
+
+(defun xwidget-webkit-zoom-out ()
+ "Decrease webkit view zoom factor."
+ (interactive)
+ (xwidget-webkit-zoom (xwidget-webkit-current-session) -0.1))
+
(defun xwidget-webkit-scroll-up ()
"Scroll webkit up."
(interactive)
diff --git a/src/xwidget.c b/src/xwidget.c
index 8e6b475..a098150 100644
--- a/src/xwidget.c
+++ b/src/xwidget.c
@@ -539,6 +539,25 @@ DEFUN ("xwidget-webkit-goto-uri",
return Qnil;
}
+DEFUN ("xwidget-webkit-zoom",
+ Fxwidget_webkit_zoom, Sxwidget_webkit_zoom,
+ 2, 2, 0,
+ doc: /* Change the zoom factor of the xwidget webkit instance
+referenced by XWIDGET. */)
+ (Lisp_Object xwidget, Lisp_Object factor)
+{
+ WEBKIT_FN_INIT ();
+ if (FLOATP (factor))
+ {
+ double zoom_change = XFLOAT_DATA (factor);
+ webkit_web_view_set_zoom_level
+ (WEBKIT_WEB_VIEW (xw->widget_osr),
+ webkit_web_view_get_zoom_level
+ (WEBKIT_WEB_VIEW (xw->widget_osr)) + zoom_change);
+ }
+ return Qnil;
+}
+
DEFUN ("xwidget-webkit-execute-script",
Fxwidget_webkit_execute_script, Sxwidget_webkit_execute_script,
@@ -823,6 +842,7 @@ syms_of_xwidget (void)
defsubr (&Sset_xwidget_query_on_exit_flag);
defsubr (&Sxwidget_webkit_goto_uri);
+ defsubr (&Sxwidget_webkit_zoom);
defsubr (&Sxwidget_webkit_execute_script);
defsubr (&Sxwidget_webkit_get_title);
DEFSYM (Qwebkit, "webkit");
--
2.10.0
- [PATCH 0/6] xwidget webkit: Use WebKit2 API., Ricardo Wurmus, 2016/09/21
- [PATCH 1/6] xwidget: Use WebKit2 API, Ricardo Wurmus, 2016/09/21
- [PATCH 2/6] Remove scrolled window container around WebKit widget, Ricardo Wurmus, 2016/09/21
- [PATCH 3/6] Implement zoom for WebKit widget,
Ricardo Wurmus <=
- [PATCH 4/6] xwidget: Bind "beginning-of-buffer" and "end-of-buffer", Ricardo Wurmus, 2016/09/21
- [PATCH 5/6] Let initial WebKit view fill window, Ricardo Wurmus, 2016/09/21
- [PATCH 6/6] xwidget: Map "previous-line" and "next-line" to scroll, Ricardo Wurmus, 2016/09/21
- Re: [PATCH 0/6] xwidget webkit: Use WebKit2 API., joakim, 2016/09/21
- Re: [PATCH 0/6] xwidget webkit: Use WebKit2 API., Eli Zaretskii, 2016/09/21