1 /**
2  * @file gtkimhtml.h GTK+ IM/HTML rendering component
3  * @ingroup pidgin
4  * @see @ref gtkimhtml-signals
5  */
6 
7 /* Pidgin is the legal property of its developers, whose names are too numerous
8  * to list here.  Please refer to the COPYRIGHT file distributed with this
9  * source distribution.
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
24  */
25 #ifndef _PIDGINIMHTML_H_
26 #define _PIDGINIMHTML_H_
27 
28 #include <gdk/gdk.h>
29 #include <gtk/gtk.h>
30 #include "gtksourceundomanager.h"
31 
32 #include "connection.h"
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37 
38 /**************************************************************************
39  * @name Structures
40  **************************************************************************/
41 /*@{*/
42 
43 #define GTK_TYPE_IMHTML            (gtk_imhtml_get_type())
44 #define GTK_IMHTML(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj), GTK_TYPE_IMHTML, GtkIMHtml))
45 #define GTK_IMHTML_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), GTK_TYPE_IMHTML, GtkIMHtmlClass))
46 #define GTK_IS_IMHTML(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), GTK_TYPE_IMHTML))
47 #define GTK_IS_IMHTML_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GTK_TYPE_IMHTML))
48 #define GTK_IMHTML_SCALABLE(obj)   ((GtkIMHtmlScalable *)obj)
49 #define GTK_IMHTML_ANIMATION(obj)  ((GtkIMHtmlAnimation *)obj)
50 
51 typedef struct _GtkIMHtml			GtkIMHtml;
52 typedef struct _GtkIMHtmlClass		GtkIMHtmlClass;
53 #if !(defined PIDGIN_DISABLE_DEPRECATED) && !(defined _PIDGIN_GTKIMHTML_C_)
54 typedef struct _GtkIMHtmlFontDetail	GtkIMHtmlFontDetail;	/* The five elements contained in a FONT tag */
55 #endif
56 typedef struct _GtkSmileyTree		GtkSmileyTree;
57 typedef struct _GtkIMHtmlSmiley		GtkIMHtmlSmiley;
58 typedef struct _GtkIMHtmlScalable	GtkIMHtmlScalable;
59 typedef struct _GtkIMHtmlImage		GtkIMHtmlImage;
60 typedef struct _GtkIMHtmlAnimation	GtkIMHtmlAnimation;
61 typedef struct _GtkIMHtmlHr			GtkIMHtmlHr;
62 typedef struct _GtkIMHtmlFuncs		GtkIMHtmlFuncs;
63 
64 /**
65  * @since 2.6.0
66  */
67 typedef struct _GtkIMHtmlLink       GtkIMHtmlLink;
68 
69 typedef enum {
70 	GTK_IMHTML_BOLD =       1 << 0,
71 	GTK_IMHTML_ITALIC =     1 << 1,
72 	GTK_IMHTML_UNDERLINE =  1 << 2,
73 	GTK_IMHTML_GROW =       1 << 3,
74 	GTK_IMHTML_SHRINK =     1 << 4,
75 	GTK_IMHTML_FACE =       1 << 5,
76 	GTK_IMHTML_FORECOLOR =  1 << 6,
77 	GTK_IMHTML_BACKCOLOR =  1 << 7,
78 	GTK_IMHTML_BACKGROUND = 1 << 8,
79 	GTK_IMHTML_LINK =       1 << 9,
80 	GTK_IMHTML_IMAGE =      1 << 10,
81 	GTK_IMHTML_SMILEY =     1 << 11,
82 	GTK_IMHTML_LINKDESC =   1 << 12,
83 	GTK_IMHTML_STRIKE =     1 << 13,
84 	/** Show custom smileys when appropriate. @since 2.5.0 */
85 	GTK_IMHTML_CUSTOM_SMILEY = 1 << 14,
86 	GTK_IMHTML_ALL =       -1
87 } GtkIMHtmlButtons;
88 
89 typedef enum {
90 	GTK_IMHTML_SMILEY_CUSTOM =	1 << 0
91 } GtkIMHtmlSmileyFlags;
92 
93 struct _GtkIMHtml {
94 	GtkTextView text_view;
95 	GtkTextBuffer *text_buffer;
96 	GdkCursor *hand_cursor;
97 	GdkCursor *arrow_cursor;
98 	GdkCursor *text_cursor;
99 	GHashTable *smiley_data;
100 	GtkSmileyTree *default_smilies;
101 	char *protocol_name;
102 	guint scroll_src;
103 	GTimer *scroll_time;
104 	GQueue *animations;
105 	int num_animations;
106 
107 	gboolean show_comments;
108 
109 	GtkWidget *tip_window;
110 	char *tip;
111 	guint tip_timer;
112 	GtkTextTag *prelit_tag;
113 
114 	GList *scalables;
115 	GdkRectangle old_rect;
116 
117 	gchar *search_string;
118 
119 	gboolean editable;
120 	GtkIMHtmlButtons format_functions;
121 	gboolean wbfo;	/* Whole buffer formatting only. */
122 
123 	gint insert_offset;
124 
125 	struct {
126 		gboolean bold:1;
127 		gboolean italic:1;
128 		gboolean underline:1;
129 		gboolean strike:1;
130 		gchar *forecolor;
131 		gchar *backcolor;
132 		gchar *background;
133 		gchar *fontface;
134 		int fontsize;
135 		GtkTextTag *link;
136 	} edit;
137 
138 #if !(defined PIDGIN_DISABLE_DEPRECATED) || (defined _PIDGIN_GTKIMHTML_C_)
139 	/** @deprecated */
140 	char *clipboard_text_string;
141 	/** @deprecated */
142 	char *clipboard_html_string;
143 #else
144 	char *depr1;
145 	char *depr2;
146 #endif
147 
148 	GSList *im_images;
149 	GtkIMHtmlFuncs *funcs;
150 	GtkSourceUndoManager *undo_manager;
151 };
152 
153 struct _GtkIMHtmlClass {
154 	GtkTextViewClass parent_class;
155 
156 	void (*url_clicked)(GtkIMHtml *, const gchar *);
157 	void (*buttons_update)(GtkIMHtml *, GtkIMHtmlButtons);
158 	void (*toggle_format)(GtkIMHtml *, GtkIMHtmlButtons);
159 	void (*clear_format)(GtkIMHtml *);
160 	void (*update_format)(GtkIMHtml *);
161 	gboolean (*message_send)(GtkIMHtml *);
162 	void (*undo)(GtkIMHtml *);
163 	void (*redo)(GtkIMHtml *);
164 	GList *protocols; /* List of GtkIMHtmlProtocol's */
165 };
166 
167 #if !(defined PIDGIN_DISABLE_DEPRECATED) && !(defined _PIDGIN_GTKIMHTML_C_)
168 /** @deprecated as of 2.7.10 */
169 struct _GtkIMHtmlFontDetail {
170 	gushort size;
171 	gchar *face;
172 	gchar *fore;
173 	gchar *back;
174 	gchar *bg;
175 	gchar *sml;
176 	gboolean underline;
177 	gshort bold;
178 };
179 #endif
180 
181 struct _GtkSmileyTree {
182 	GString *values;
183 	GtkSmileyTree **children;
184 	GtkIMHtmlSmiley *image;
185 };
186 
187 struct _GtkIMHtmlSmiley {
188 	gchar *smile;
189 	gchar *file;
190 	GdkPixbufAnimation *icon;
191 	gboolean hidden;
192 	GdkPixbufLoader *loader;
193 	GSList *anchors;
194 	GtkIMHtmlSmileyFlags flags;
195 	GtkIMHtml *imhtml;
196 	gpointer data;       /** @since 2.6.0 */
197 	gsize datasize;      /** @since 2.6.0 */
198 };
199 
200 struct _GtkIMHtmlScalable {
201 	void (*scale)(struct _GtkIMHtmlScalable *, int, int);
202 	void (*add_to)(struct _GtkIMHtmlScalable *, GtkIMHtml *, GtkTextIter *);
203 	void (*free)(struct _GtkIMHtmlScalable *);
204 };
205 
206 struct _GtkIMHtmlImage {
207 	GtkIMHtmlScalable scalable;
208 	GtkImage *image; /**< Contains the scaled version of this pixbuf. */
209 	GdkPixbuf *pixbuf; /**< The original pixbuf, before any scaling. */
210 	GtkTextMark *mark;
211 	gchar *filename;
212 	int width;
213 	int height;
214 	int id;
215 	GtkWidget *filesel;
216 };
217 
218 struct _GtkIMHtmlAnimation {
219 	GtkIMHtmlImage imhtmlimage;
220 	GdkPixbufAnimation *anim; /**< The original animation, before any scaling. */
221 	GdkPixbufAnimationIter *iter;
222 	guint timer;
223 };
224 
225 struct _GtkIMHtmlHr {
226 	GtkIMHtmlScalable scalable;
227 	GtkWidget *sep;
228 };
229 
230 typedef enum {
231 	GTK_IMHTML_NO_COLOURS          = 1 << 0,
232 	GTK_IMHTML_NO_FONTS            = 1 << 1,
233 	GTK_IMHTML_NO_COMMENTS         = 1 << 2, /* Remove */
234 	GTK_IMHTML_NO_TITLE            = 1 << 3,
235 	GTK_IMHTML_NO_NEWLINE          = 1 << 4,
236 	GTK_IMHTML_NO_SIZES            = 1 << 5,
237 	GTK_IMHTML_NO_SCROLL           = 1 << 6,
238 	GTK_IMHTML_RETURN_LOG          = 1 << 7,
239 	GTK_IMHTML_USE_POINTSIZE       = 1 << 8,
240 	GTK_IMHTML_NO_FORMATTING       = 1 << 9,
241 	GTK_IMHTML_USE_SMOOTHSCROLLING = 1 << 10,
242 	GTK_IMHTML_NO_SMILEY           = 1 << 11
243 } GtkIMHtmlOptions;
244 
245 enum {
246 	GTK_IMHTML_DRAG_URL = 0,
247 	GTK_IMHTML_DRAG_HTML,
248 	GTK_IMHTML_DRAG_UTF8_STRING,
249 	GTK_IMHTML_DRAG_COMPOUND_TEXT,
250 	GTK_IMHTML_DRAG_STRING,
251 	GTK_IMHTML_DRAG_TEXT,
252 	GTK_IMHTML_DRAG_NUM
253 };
254 
255 #define GTK_IMHTML_DND_TARGETS	\
256 	{ "text/uri-list", 0, GTK_IMHTML_DRAG_URL }, \
257 	{ "_NETSCAPE_URL", 0, GTK_IMHTML_DRAG_URL }, \
258 	{ "text/html", 0, GTK_IMHTML_DRAG_HTML }, \
259 	{ "x-url/ftp", 0, GTK_IMHTML_DRAG_URL }, \
260 	{ "x-url/http", 0, GTK_IMHTML_DRAG_URL }, \
261 	{ "UTF8_STRING", 0, GTK_IMHTML_DRAG_UTF8_STRING }, \
262 	{ "COMPOUND_TEXT", 0, GTK_IMHTML_DRAG_COMPOUND_TEXT }, \
263 	{ "STRING", 0, GTK_IMHTML_DRAG_STRING }, \
264 	{ "text/plain", 0, GTK_IMHTML_DRAG_TEXT }, \
265 	{ "TEXT", 0, GTK_IMHTML_DRAG_TEXT }
266 
267 typedef gpointer    (*GtkIMHtmlGetImageFunc)        (int id);
268 typedef gpointer    (*GtkIMHtmlGetImageDataFunc)    (gpointer i);
269 typedef size_t      (*GtkIMHtmlGetImageSizeFunc)    (gpointer i);
270 typedef const char *(*GtkIMHtmlGetImageFilenameFunc)(gpointer i);
271 typedef void        (*GtkIMHtmlImageRefFunc)        (int id);
272 typedef void        (*GtkIMHtmlImageUnrefFunc)      (int id);
273 
274 struct _GtkIMHtmlFuncs {
275 	GtkIMHtmlGetImageFunc image_get;
276 	GtkIMHtmlGetImageDataFunc image_get_data;
277 	GtkIMHtmlGetImageSizeFunc image_get_size;
278 	GtkIMHtmlGetImageFilenameFunc image_get_filename;
279 	GtkIMHtmlImageRefFunc image_ref;
280 	GtkIMHtmlImageUnrefFunc image_unref;
281 };
282 
283 /*@}*/
284 
285 /**************************************************************************
286  * @name GTK+ IM/HTML rendering component API
287  **************************************************************************/
288 /*@{*/
289 
290 /**
291  * Returns the GType object for an IM/HTML widget.
292  *
293  * @return The GType for an IM/HTML widget.
294  */
295 GType gtk_imhtml_get_type(void);
296 
297 /**
298  * Creates and returns a new GTK+ IM/HTML widget.
299  *
300  * @return The GTK+ IM/HTML widget created.
301  */
302 GtkWidget *gtk_imhtml_new(void *, void *);
303 
304 /**
305  * Returns the smiley object associated with the text.
306  *
307  * @param imhtml The GTK+ IM/HTML.
308  * @param sml    The name of the smiley category.
309  * @param text   The text associated with the smiley.
310  */
311 
312 GtkIMHtmlSmiley *gtk_imhtml_smiley_get(GtkIMHtml * imhtml,
313                                         const gchar * sml, const gchar * text);
314 
315 
316 /**
317  * Associates a smiley with a GTK+ IM/HTML.
318  *
319  * @param imhtml The GTK+ IM/HTML.
320  * @param sml    The name of the smiley category.
321  * @param smiley The GtkIMSmiley to associate.
322  */
323 void gtk_imhtml_associate_smiley(GtkIMHtml *imhtml, const gchar *sml, GtkIMHtmlSmiley *smiley);
324 
325 /**
326  * Removes all smileys associated with a GTK+ IM/HTML.
327  *
328  * @param imhtml The GTK+ IM/HTML.
329  */
330 void gtk_imhtml_remove_smileys(GtkIMHtml *imhtml);
331 
332 /**
333  * Sets the function callbacks to use with a GTK+ IM/HTML instance.
334  *
335  * @param imhtml The GTK+ IM/HTML.
336  * @param f      The GtkIMHTMLFuncs struct containing the functions to use.
337  */
338 void gtk_imhtml_set_funcs(GtkIMHtml *imhtml, GtkIMHtmlFuncs *f);
339 
340 /**
341  * Enables or disables showing the contents of HTML comments in a GTK+ IM/HTML.
342  *
343  * @param imhtml The GTK+ IM/HTML.
344  * @param show   @c TRUE if comments should be shown, or @c FALSE otherwise.
345  */
346 void gtk_imhtml_show_comments(GtkIMHtml *imhtml, gboolean show);
347 
348 /**
349  * Gets the protocol name associated with this GTK+ IM/HTML.
350  *
351  * @param imhtml The GTK+ IM/HTML
352  */
353 const char *gtk_imhtml_get_protocol_name(GtkIMHtml *imhtml);
354 
355 /**
356  * Associates a protocol name with a GTK+ IM/HTML.
357  *
358  * @param imhtml        The GTK+ IM/HTML.
359  * @param protocol_name The protocol name to associate with the IM/HTML.
360  */
361 void gtk_imhtml_set_protocol_name(GtkIMHtml *imhtml, const gchar *protocol_name);
362 
363 /**
364  * Appends HTML formatted text to a GTK+ IM/HTML.
365  *
366  * @param imhtml  The GTK+ IM/HTML.
367  * @param text    The formatted text to append.
368  * @param options A GtkIMHtmlOptions object indicating insert behavior.
369  */
370 #define gtk_imhtml_append_text(imhtml, text, options) \
371  gtk_imhtml_append_text_with_images(imhtml, text, options, NULL)
372 
373 /**
374  * Appends HTML formatted text to a GTK+ IM/HTML.
375  *
376  * @param imhtml  The GTK+ IM/HTML.
377  * @param text    The formatted text to append.
378  * @param options A GtkIMHtmlOptions object indicating insert behavior.
379  * @param unused  Use @c NULL value.
380  */
381 void gtk_imhtml_append_text_with_images(GtkIMHtml *imhtml,
382                                          const gchar *text,
383                                          GtkIMHtmlOptions options,
384                                          GSList *unused);
385 
386 /**
387  * Inserts HTML formatted text to a GTK+ IM/HTML at a given iter.
388  *
389  * @param imhtml  The GTK+ IM/HTML.
390  * @param text    The formatted text to append.
391  * @param options A GtkIMHtmlOptions object indicating insert behavior.
392  * @param iter    A GtkTextIter in the GTK+ IM/HTML at which to insert text.
393  */
394 void gtk_imhtml_insert_html_at_iter(GtkIMHtml        *imhtml,
395                                     const gchar      *text,
396                                     GtkIMHtmlOptions  options,
397                                     GtkTextIter      *iter);
398 
399 /**
400  * Scrolls a GTK+ IM/HTML to the end of its contents.
401  *
402  * @param imhtml  The GTK+ IM/HTML.
403  * @param smooth  A boolean indicating if smooth scrolling should be used.
404  */
405 void gtk_imhtml_scroll_to_end(GtkIMHtml *imhtml, gboolean smooth);
406 
407 /**
408  * Delete the contents of a GTK+ IM/HTML between start and end.
409  *
410  * @param imhtml  The GTK+ IM/HTML.
411  * @param start   a postition in the imhtml's buffer
412  * @param end     another postition in the imhtml's buffer
413  */
414 void gtk_imhtml_delete(GtkIMHtml *imhtml, GtkTextIter *start, GtkTextIter *end);
415 
416 /**
417  * Purges the contents from a GTK+ IM/HTML and resets formatting.
418  *
419  * @param imhtml  The GTK+ IM/HTML.
420  */
421 #define gtk_imhtml_clear(imhtml) \
422  gtk_imhtml_delete(imhtml, NULL, NULL)
423 
424 /**
425  * Scrolls a GTK+ IM/HTML up by one page.
426  *
427  * @param imhtml  The GTK+ IM/HTML.
428  */
429 void gtk_imhtml_page_up(GtkIMHtml *imhtml);
430 
431 /**
432  * Scrolls a GTK+ IM/HTML down by one page.
433  *
434  * @param imhtml  The GTK+ IM/HTML.
435  */
436 void gtk_imhtml_page_down(GtkIMHtml *imhtml);
437 
438 /**
439  * Creates and returns an new GTK+ IM/HTML scalable object.
440  *
441  * @return A new IM/HTML Scalable object.
442  */
443 GtkIMHtmlScalable *gtk_imhtml_scalable_new(void);
444 
445 /**
446  * Creates and returns a new GTK+ IM/HTML scalable object with an image.
447  *
448  * @param img      A GdkPixbuf of the image to add.
449  * @param filename The filename to associate with the image.
450  * @param id       The id to associate with the image.
451  *
452  * @return A new IM/HTML Scalable object with an image.
453  */
454 GtkIMHtmlScalable *gtk_imhtml_image_new(GdkPixbuf *img, const gchar *filename, int id);
455 
456 /**
457  * Creates and returns a new GTK+ IM/HTML scalable object with an
458  * animated image.
459  *
460  * @param img      A GdkPixbufAnimation of the image to add.
461  * @param filename The filename to associate with the image.
462  * @param id       The id to associate with the image.
463  *
464  * @return A new IM/HTML Scalable object with an image.
465  *
466  * @since 2.1.0
467  */
468 /*
469  * TODO: All this animation code could be combined much better with
470  *       the image code.  It couldn't be done when it was written
471  *       because it requires breaking backward compatibility.  It
472  *       would be good to do it for 3.0.0.
473  */
474 GtkIMHtmlScalable *gtk_imhtml_animation_new(GdkPixbufAnimation *img, const gchar *filename, int id);
475 
476 /**
477  * Destroys and frees a GTK+ IM/HTML scalable image.
478  *
479  * @param scale The GTK+ IM/HTML scalable.
480  */
481 /* TODO: Is there any reason this isn't private? */
482 void gtk_imhtml_image_free(GtkIMHtmlScalable *scale);
483 
484 /**
485  * Destroys and frees a GTK+ IM/HTML scalable animation.
486  *
487  * @param scale The GTK+ IM/HTML scalable.
488  */
489 /* TODO: Is there any reason this isn't private? */
490 void gtk_imhtml_animation_free(GtkIMHtmlScalable *scale);
491 
492 /**
493  * Rescales a GTK+ IM/HTML scalable image to a given size.
494  *
495  * @param scale  The GTK+ IM/HTML scalable.
496  * @param width  The new width.
497  * @param height The new height.
498  */
499 /* TODO: Is there any reason this isn't private? */
500 void gtk_imhtml_image_scale(GtkIMHtmlScalable *scale, int width, int height);
501 
502 /**
503  * Adds a GTK+ IM/HTML scalable image to a given GTK+ IM/HTML at a given iter.
504  *
505  * @param scale  The GTK+ IM/HTML scalable.
506  * @param imhtml The GTK+ IM/HTML.
507  * @param iter   The GtkTextIter at which to add the scalable.
508  */
509 /* TODO: Is there any reason this isn't private? */
510 void gtk_imhtml_image_add_to(GtkIMHtmlScalable *scale, GtkIMHtml *imhtml, GtkTextIter *iter);
511 
512 /**
513  * Creates and returns an new GTK+ IM/HTML scalable with a horizontal rule.
514  *
515  * @return A new IM/HTML Scalable object with an image.
516  */
517 GtkIMHtmlScalable *gtk_imhtml_hr_new(void);
518 
519 /**
520  * Destroys and frees a GTK+ IM/HTML scalable horizontal rule.
521  *
522  * @param scale The GTK+ IM/HTML scalable.
523  */
524 void gtk_imhtml_hr_free(GtkIMHtmlScalable *scale);
525 
526 /**
527  * Rescales a GTK+ IM/HTML scalable horizontal rule to a given size.
528  *
529  * @param scale  The GTK+ IM/HTML scalable.
530  * @param width  The new width.
531  * @param height The new height.
532  */
533 void gtk_imhtml_hr_scale(GtkIMHtmlScalable *scale, int width, int height);
534 
535 /**
536  * Adds a GTK+ IM/HTML scalable horizontal rule to a given GTK+ IM/HTML at
537  * a given iter.
538  *
539  * @param scale  The GTK+ IM/HTML scalable.
540  * @param imhtml The GTK+ IM/HTML.
541  * @param iter   The GtkTextIter at which to add the scalable.
542  */
543 void gtk_imhtml_hr_add_to(GtkIMHtmlScalable *scale, GtkIMHtml *imhtml, GtkTextIter *iter);
544 
545 /**
546  * Finds and highlights a given string in a GTK+ IM/HTML.
547  *
548  * @param imhtml The GTK+ IM/HTML.
549  * @param text   The string to search for.
550  *
551  * @return @c TRUE if a search was performed, or @c FALSE if not.
552  */
553 gboolean gtk_imhtml_search_find(GtkIMHtml *imhtml, const gchar *text);
554 
555 /**
556  * Clears the highlighting from a prior search in a GTK+ IM/HTML.
557  *
558  * @param imhtml The GTK+ IM/HTML.
559  */
560 void gtk_imhtml_search_clear(GtkIMHtml *imhtml);
561 
562 /**
563  * Enables or disables editing in a GTK+ IM/HTML.
564  *
565  * @param imhtml   The GTK+ IM/HTML.
566  * @param editable @c TRUE to make the widget editable, or @c FALSE otherwise.
567  */
568 void gtk_imhtml_set_editable(GtkIMHtml *imhtml, gboolean editable);
569 
570 /**
571  * Enables or disables whole buffer formatting only (wbfo) in a GTK+ IM/HTML.
572  * In this mode formatting options to the buffer take effect for the entire
573  * buffer instead of specific text.
574  *
575  * @param imhtml The GTK+ IM/HTML.
576  * @param wbfo   @c TRUE to enable the mode, or @c FALSE otherwise.
577  */
578 void gtk_imhtml_set_whole_buffer_formatting_only(GtkIMHtml *imhtml, gboolean wbfo);
579 
580 /**
581  * Indicates which formatting functions to enable and disable in a GTK+ IM/HTML.
582  *
583  * @param imhtml  The GTK+ IM/HTML.
584  * @param buttons A GtkIMHtmlButtons bitmask indicating which functions to use.
585  */
586 void gtk_imhtml_set_format_functions(GtkIMHtml *imhtml, GtkIMHtmlButtons buttons);
587 
588 /**
589  * Returns which formatting functions are enabled in a GTK+ IM/HTML.
590  *
591  * @param imhtml The GTK+ IM/HTML.
592  *
593  * @return A GtkIMHtmlButtons bitmask indicating which functions to are enabled.
594  */
595 GtkIMHtmlButtons gtk_imhtml_get_format_functions(GtkIMHtml *imhtml);
596 
597 /**
598  * Sets each boolean to @c TRUE or @c FALSE to indicate if that formatting option
599  * is enabled at the current position in a GTK+ IM/HTML.
600  *
601  * @param imhtml    The GTK+ IM/HTML.
602  * @param bold      The boolean to set for bold or @c NULL.
603  * @param italic    The boolean to set for italic or @c NULL.
604  * @param underline The boolean to set for underline or @c NULL.
605  */
606 void gtk_imhtml_get_current_format(GtkIMHtml *imhtml, gboolean *bold, gboolean *italic, gboolean *underline);
607 
608 /**
609  * Returns a string containing the selected font face at the current position
610  * in a GTK+ IM/HTML.
611  *
612  * @param imhtml The GTK+ IM/HTML.
613  *
614  * @return A string containg the font face or @c NULL if none is set.
615  */
616 char *gtk_imhtml_get_current_fontface(GtkIMHtml *imhtml);
617 
618 /**
619  * Returns a string containing the selected foreground color at the current
620  * position in a GTK+ IM/HTML.
621  *
622  * @param imhtml The GTK+ IM/HTML.
623  *
624  * @return A string containg the foreground color or @c NULL if none is set.
625  */
626 char *gtk_imhtml_get_current_forecolor(GtkIMHtml *imhtml);
627 
628 /**
629  * Returns a string containing the selected font background color at the current
630  * position in a GTK+ IM/HTML.
631  *
632  * @param imhtml The GTK+ IM/HTML.
633  *
634  * @return A string containg the font background color or @c NULL if none is set.
635  */
636 char *gtk_imhtml_get_current_backcolor(GtkIMHtml *imhtml);
637 
638 /**
639  * Returns a string containing the selected background color at the current
640  * position in a GTK+ IM/HTML.
641  *
642  * @param imhtml The GTK+ IM/HTML.
643  *
644  * @return A string containg the background color or @c NULL if none is set.
645  */
646 char *gtk_imhtml_get_current_background(GtkIMHtml *imhtml);
647 
648 /**
649  * Returns a integer containing the selected HTML font size at the current
650  * position in a GTK+ IM/HTML.
651  *
652  * @param imhtml The GTK+ IM/HTML.
653  *
654  * @return The HTML font size.
655  */
656 gint gtk_imhtml_get_current_fontsize(GtkIMHtml *imhtml);
657 
658 /**
659  * Checks whether a GTK+ IM/HTML is marked as editable.
660  *
661  * @param imhtml The GTK+ IM/HTML.
662  *
663  * @return @c TRUE if the IM/HTML is editable, or @c FALSE otherwise.
664  */
665 gboolean gtk_imhtml_get_editable(GtkIMHtml *imhtml);
666 
667 /**
668  * Clear all the formatting on a GTK+ IM/HTML.
669  *
670  * @param imhtml The GTK+ IM/HTML.
671  */
672 void gtk_imhtml_clear_formatting(GtkIMHtml *imhtml);
673 
674 /**
675  * Toggles bold at the cursor location or selection in a GTK+ IM/HTML.
676  *
677  * @param imhtml The GTK+ IM/HTML.
678  */
679 void gtk_imhtml_toggle_bold(GtkIMHtml *imhtml);
680 
681 /**
682  * Toggles italic at the cursor location or selection in a GTK+ IM/HTML.
683  *
684  * @param imhtml The GTK+ IM/HTML.
685  */
686 void gtk_imhtml_toggle_italic(GtkIMHtml *imhtml);
687 
688 /**
689  * Toggles underline at the cursor location or selection in a GTK+ IM/HTML.
690  *
691  * @param imhtml The GTK+ IM/HTML.
692  */
693 void gtk_imhtml_toggle_underline(GtkIMHtml *imhtml);
694 
695 /**
696  * Toggles strikethrough at the cursor location or selection in a GTK+ IM/HTML.
697  *
698  * @param imhtml The GTK+ IM/HTML.
699  */
700 void gtk_imhtml_toggle_strike(GtkIMHtml *imhtml);
701 
702 /**
703  * Toggles a foreground color at the current location or selection in a GTK
704  * IM/HTML.
705  *
706  * @param imhtml The GTK+ IM/HTML.
707  * @param color  The HTML-style color, or @c NULL or "" to clear the color.
708  *
709  * @return @c TRUE if a color was set, or @c FALSE if it was cleared.
710  */
711 gboolean gtk_imhtml_toggle_forecolor(GtkIMHtml *imhtml, const char *color);
712 
713 /**
714  * Toggles a background color at the current location or selection in a GTK
715  * IM/HTML.
716  *
717  * @param imhtml The GTK+ IM/HTML.
718  * @param color  The HTML-style color, or @c NULL or "" to clear the color.
719  *
720  * @return @c TRUE if a color was set, or @c FALSE if it was cleared.
721  */
722 gboolean gtk_imhtml_toggle_backcolor(GtkIMHtml *imhtml, const char *color);
723 
724 /**
725  * Toggles a background color at the current location or selection in a GTK
726  * IM/HTML.
727  *
728  * @param imhtml The GTK+ IM/HTML.
729  * @param color  The HTML-style color, or @c NULL or "" to clear the color.
730  *
731  * @return @c TRUE if a color was set, or @c FALSE if it was cleared.
732  */
733 gboolean gtk_imhtml_toggle_background(GtkIMHtml *imhtml, const char *color);
734 
735 /**
736  * Toggles a font face at the current location or selection in a GTK+ IM/HTML.
737  *
738  * @param imhtml The GTK+ IM/HTML.
739  * @param face   The font face name, or @c NULL or "" to clear the font.
740  *
741  * @return @c TRUE if a font name was set, or @c FALSE if it was cleared.
742  */
743 gboolean gtk_imhtml_toggle_fontface(GtkIMHtml *imhtml, const char *face);
744 
745 /**
746  * Toggles a link tag with the given URL at the current location or selection
747  * in a GTK+ IM/HTML.
748  *
749  * @param imhtml The GTK+ IM/HTML.
750  * @param url    The URL for the link or @c NULL to terminate the link.
751  */
752 void gtk_imhtml_toggle_link(GtkIMHtml *imhtml, const char *url);
753 
754 /**
755  * Inserts a link to the given url at the given GtkTextMark in a GTK+ IM/HTML.
756  *
757  * @param imhtml The GTK+ IM/HTML.
758  * @param mark   The GtkTextMark to insert the link at.
759  * @param url    The URL for the link.
760  * @param text   The string to use for the link description.
761  */
762 void gtk_imhtml_insert_link(GtkIMHtml *imhtml, GtkTextMark *mark, const char *url, const char *text);
763 
764 /**
765  * Inserts a smiley at the current location or selection in a GTK+ IM/HTML.
766  *
767  * @param imhtml The GTK+ IM/HTML.
768  * @param sml    The category of the smiley.
769  * @param smiley The text of the smiley to insert.
770  */
771 void gtk_imhtml_insert_smiley(GtkIMHtml *imhtml, const char *sml, char *smiley);
772 /**
773  * Inserts a smiley at the given iter in a GTK+ IM/HTML.
774  *
775  * @param imhtml The GTK+ IM/HTML.
776  * @param sml    The category of the smiley.
777  * @param smiley The text of the smiley to insert.
778  * @param iter   The GtkTextIter in the IM/HTML to insert the smiley at.
779  */
780 void gtk_imhtml_insert_smiley_at_iter(GtkIMHtml *imhtml, const char *sml, char *smiley, GtkTextIter *iter);
781 
782 /**
783  * Inserts the IM/HTML scalable image with the given id at the given iter in a
784  * GTK+ IM/HTML.
785  *
786  * @param imhtml The GTK+ IM/HTML.
787  * @param id     The id of the IM/HTML scalable.
788  * @param iter   The GtkTextIter in the IM/HTML to insert the image at.
789  */
790 void gtk_imhtml_insert_image_at_iter(GtkIMHtml *imhtml, int id, GtkTextIter *iter);
791 
792 /**
793  * Sets the font size at the current location or selection in a GTK+ IM/HTML.
794  *
795  * @param imhtml The GTK+ IM/HTML.
796  * @param size   The HTML font size to use.
797  */
798 void gtk_imhtml_font_set_size(GtkIMHtml *imhtml, gint size);
799 
800 /**
801  * Decreases the font size by 1 at the current location or selection in a GTK
802  * IM/HTML.
803  *
804  * @param imhtml The GTK+ IM/HTML.
805  */
806 void gtk_imhtml_font_shrink(GtkIMHtml *imhtml);
807 
808 /**
809  * Increases the font size by 1 at the current location or selection in a GTK
810  * IM/HTML.
811  *
812  * @param imhtml The GTK+ IM/HTML.
813  */
814 void gtk_imhtml_font_grow(GtkIMHtml *imhtml);
815 
816 /**
817  * Returns the HTML formatted contents between two iters in a GTK+ IM/HTML.
818  *
819  * @param imhtml The GTK+ IM/HTML.
820  * @param start  The GtkTextIter indicating the start point in the IM/HTML.
821  * @param end    The GtkTextIter indicating the end point in the IM/HTML.
822  *
823  * @return A string containing the HTML formatted text.
824  */
825 char *gtk_imhtml_get_markup_range(GtkIMHtml *imhtml, GtkTextIter *start, GtkTextIter *end);
826 
827 /**
828  * Returns the entire HTML formatted contents of a GTK+ IM/HTML.
829  *
830  * @param imhtml The GTK+ IM/HTML.
831  *
832  * @return A string containing the HTML formatted text.
833  */
834 char *gtk_imhtml_get_markup(GtkIMHtml *imhtml);
835 
836 /**
837  * Returns a null terminated array of pointers to null terminated strings, each
838  * string for each line.  g_strfreev() should be called to free it when done.
839  *
840  * @param imhtml The GTK+ IM/HTML.
841  *
842  * @return A null terminated array of null terminated HTML formatted strings.
843  */
844 char **gtk_imhtml_get_markup_lines(GtkIMHtml *imhtml);
845 
846 /**
847  * Returns the entire unformatted (plain text) contents of a GTK+ IM/HTML
848  * between two iters in a GTK+ IM/HTML.
849  *
850  * @param imhtml The GTK+ IM/HTML.
851  * @param start  The GtkTextIter indicating the start point in the IM/HTML.
852  * @param stop   The GtkTextIter indicating the end point in the IM/HTML.
853  *
854  * @return A string containing the unformatted text.
855  */
856 char *gtk_imhtml_get_text(GtkIMHtml *imhtml, GtkTextIter *start, GtkTextIter *stop);
857 
858 /**
859  * Setup formatting for an imhtml depending on the flags specified.
860  *
861  * @param imhtml  The GTK+ IM/HTML.
862  * @param flags   The connection flag which describes the allowed types of formatting.
863  *
864  * @since 2.1.0
865  */
866 void gtk_imhtml_setup_entry(GtkIMHtml *imhtml, PurpleConnectionFlags flags);
867 
868 /**
869  * Create a new GtkIMHtmlSmiley.
870  *
871  * @param file       The image file for the smiley
872  * @param shortcut   The key shortcut for the smiley
873  * @param hide       @c TRUE if the smiley should be hidden in the smiley dialog, @c FALSE otherwise
874  * @param flags      The smiley flags
875  *
876  * @return The newly created smiley
877  * @since 2.5.0
878  */
879 GtkIMHtmlSmiley *gtk_imhtml_smiley_create(const char *file, const char *shortcut, gboolean hide,
880 		GtkIMHtmlSmileyFlags flags);
881 
882 /**
883  * Reload the image data for the smiley.
884  *
885  * @param smiley   The smiley to reload
886  *
887  * @since 2.5.0
888  */
889 void gtk_imhtml_smiley_reload(GtkIMHtmlSmiley *smiley);
890 
891 /**
892  * Destroy a GtkIMHtmlSmiley.
893  *
894  * @param smiley   The smiley to destroy
895  *
896  * @since 2.5.0
897  */
898 void gtk_imhtml_smiley_destroy(GtkIMHtmlSmiley *smiley);
899 
900 /**
901  * Register a protocol with the GtkIMHtml widget. Registering a protocol would
902  * allow certain text to be clickable.
903  *
904  * @param name      The name of the protocol (e.g. http://)
905  * @param activate  The callback to trigger when the protocol text is clicked.
906  *                  Removes any current protocol definition if @c NULL. The
907  *                  callback should return @c TRUE if the link was activated
908  *                  properly, @c FALSE otherwise.
909  * @param context_menu  The callback to trigger when the context menu is popped
910  *                      up on the protocol text. The callback should return
911  *                      @c TRUE if the request for context menu was processed
912  *                      successfully, @c FALSE otherwise.
913  *
914  * @return  @c TRUE if the protocol was successfully registered (or unregistered, when \a activate is @c NULL)
915  *
916  * @since 2.6.0
917  */
918 gboolean gtk_imhtml_class_register_protocol(const char *name,
919 		gboolean (*activate)(GtkIMHtml *imhtml, GtkIMHtmlLink *link),
920 		gboolean (*context_menu)(GtkIMHtml *imhtml, GtkIMHtmlLink *link, GtkWidget *menu));
921 
922 /**
923  * Get the URL associated with a link. This should be used by the IMHtml protocol-callbacks.
924  *
925  * @param link   The GtkIMHtmlLink object sent to the callback functions
926  *
927  * @return  The URL
928  *
929  * @since 2.6.0
930  */
931 const char *gtk_imhtml_link_get_url(GtkIMHtmlLink *link);
932 
933 /**
934  * Get the GtkTextTag object (if any) associated with a particular link.
935  *
936  * @param link   The GtkIMHtmlLink object sent to the callback functions
937  *
938  * @return  The GtkTextTag object, or @c NULL
939  *
940  * @since 2.6.0
941  */
942 const GtkTextTag *gtk_imhtml_link_get_text_tag(GtkIMHtmlLink *link);
943 
944 /**
945  * Activates a GtkIMHtmlLink object. This triggers the 'url-clicked' signal, marks the
946  * link as visited (when possible).
947  *
948  * @param link   The GtkIMHtmlLink object sent to the callback functions
949  *
950  * @return  @c TRUE if 'url-clicked' signal was emitted, @c FALSE otherwise.
951  *
952  * @since 2.6.0
953  */
954 gboolean gtk_imhtml_link_activate(GtkIMHtmlLink *link);
955 
956 /**
957  * By default this widget intercepts presses of the "return" key and
958  * emits the "message_send" signal instead.  If you don't want this
959  * behavior, and you want the standard GtkTextView behavior of
960  * inserting a newline into the buffer, then call this function.
961  *
962  * @param imhtml The GtkIMHtml where you want the "return" key to add
963  *        newline and not emit the "message_send" signal.
964  */
965 void gtk_imhtml_set_return_inserts_newline(GtkIMHtml *imhtml);
966 
967 /**
968  * By default this widget populates the PRIMARY clipboard with any selected
969  * text (as you would expect).  For scenarios (e.g. select-on-focus) where this
970  * would be problematic, this function can disable the PRIMARY population.
971  *
972  * @param imhtml The GtkIMHtml to enable/disable populating PRIMARY
973  * @param populate enable/disable PRIMARY population
974  */
975 void gtk_imhtml_set_populate_primary_clipboard(GtkIMHtml *imhtml, gboolean populate);
976 
977 /*@}*/
978 
979 #ifdef __cplusplus
980 }
981 #endif
982 
983 #endif /* _PIDGINIMHTML_H_ */
984