Re: Patch: desktop/textarea.c, add text fragment select on double click

[Ole]

Am Donnerstag, den 21.06.2012, 21:17 +0200 schrieb Ole 
<o...@monochrom.net>:

Attached is a patch that hopefully has no more style glitches.
If there is more, please let me know which style rule is broken.

I'm very sorry, there were still formatting errors. The next time
that I will supply a patch to the netsurf source files, I will not
overlook the formatting errors. Thanks.

Greets,
Ole
Index: textarea.c
===================================================================
--- textarea.c	(Revision 13970)
+++ textarea.c	(Arbeitskopie)
@@ -121,6 +121,7 @@
 static bool textarea_set_caret_xy(struct text_area *ta, int x, int y);
 static bool textarea_scroll_visible(struct text_area *ta);
 static bool textarea_select(struct text_area *ta, int c_start, int c_end);
+static bool textarea_select_fragment (struct text_area *ta);
 static void textarea_normalise_text(struct text_area *ta,
 		unsigned int b_start, unsigned int b_len);
 
@@ -1335,6 +1336,12 @@
 					ta->vis_height);
 		}
 	}
+	else if ( mouse & BROWSER_MOUSE_DOUBLE_CLICK ) {
+		if ( !(ta->flags & TEXTAREA_READONLY) ){
+			textarea_set_caret_xy(ta, x, y);
+			return textarea_select_fragment(ta);
+		}
+	}
 	else if (mouse & BROWSER_MOUSE_DRAG_1) {
 		ta->drag_start_char = textarea_get_xy_offset(ta, x, y);
 		if (!(ta->flags & TEXTAREA_READONLY))
@@ -1406,6 +1413,47 @@
 
 
 /**
+ * Selects a text fragment, relative to current caret position.
+ *
+ * \param ta	Text area
+ * \return 		true on success false otherwise
+ */
+static bool textarea_select_fragment(struct text_area * ta)
+{
+	int c_pos, start_pos, end_pos;
+	static const char * sep = "/.\r\n";
+
+	c_pos = textarea_get_caret(ta);
+	if (c_pos < 0) {
+		return(false);
+	}
+
+	start_pos = c_pos;
+	while (start_pos > 0) {
+		if (strchr(sep, ta->text[start_pos]) != NULL) {
+			start_pos++;
+			break;
+		}
+		start_pos--;
+	}
+
+	end_pos = c_pos;
+	while (end_pos < (int)ta->text_len) {
+		if (strchr(sep, ta->text[end_pos]) != NULL) {
+			break;
+		}
+		end_pos++;
+	}
+
+	if (start_pos < end_pos) {
+		textarea_select(ta, start_pos, end_pos);
+		return(true);
+	}
+
+	return(false);
+}
+
+/**
  * Normalises any line endings within the text, replacing CRLF or CR with
  * LF as necessary. If the textarea is single line, then all linebreaks are
  * converted into spaces.