2.5: Text Editor back.

There was very little structure in this code, using many globals
and duplicated code. Now it should be better structured. Most
things should work, the main parts that are not back yet are the
python plugins and markers. Notes:

* Blenfont is used for drawing the text, nicely anti-aliased.
* A monospace truetype font was added, since that is needed for
  the text editor. It's Bitstream Vera Sans Mono. This is the
  default gnome terminal font, but it doesn't fit entirely well
  with the other font I think, can be changed easily of course.

* Clipboard copy/cut/paste now always uses the system clipboard,
  the code for the own cut buffer was removed.
* The interface buttons should support copy/cut/paste again now
  as well.
* WM_clipboard_text_get/WM_clipboard_text_set were added to the
  windowmanager code.

* Find panel is now a kind of second header, instead of a panel.
  This needs especially a way to start editing the text field
  immediately on open still.

* Operators are independent of the actual space when possible,
  was a bit of puzzling but got it solved nice with notifiers,
  and some lazy init for syntax highlight in the drawing code.
* RNA was created for the text editor space and used for buttons.

* Operators:
    * New, Open, Reload, Save, Save As, Make Internal
    * Run Script, Refresh Pyconstraints
    * Copy, Cut, Paste
    * Convert Whitespace, Uncomment, Comment, Indent, Unindent
    * Line Break, Insert
    * Next Marker, Previous Marker, Clear All Markers, Mark All
    * Select Line, Select All
    * Jump, Move, Move Select, Delete, Toggle Overwrite
	* Scroll, Scroll Bar, Set Cursor, Line Number
    * Find and Replace, Find, Replace, Find Set Selected,
	  Replace Set Selected
    * To 3D Object
    * Resolve Conflict

1 files changed, 555 insertions, 27 deletions

diff --git a/source/blender/editors/space_text/text_header.c b/source/blender/editors/space_text/text_header.c
index b8898e40f01..ea0005fd716 100644
--- a/source/blender/editors/space_text/text_header.c
+++ b/source/blender/editors/space_text/text_header.c
@@ -26,12 +26,26 @@
  * ***** END GPL LICENSE BLOCK *****
  */
 
+#include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 
+/* file time checking */
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#ifndef _WIN32
+#include <unistd.h>
+#else
+#include <io.h>
+#include "BLI_winstuff.h"
+#endif
+
 #include "DNA_space_types.h"
 #include "DNA_scene_types.h"
 #include "DNA_screen_types.h"
+#include "DNA_text_types.h"
 #include "DNA_windowmanager_types.h"
 
 #include "MEM_guardedalloc.h"
@@ -39,7 +53,11 @@
 #include "BLI_blenlib.h"
 
 #include "BKE_context.h"
+#include "BKE_global.h"
+#include "BKE_library.h"
+#include "BKE_main.h"
 #include "BKE_screen.h"
+#include "BKE_text.h"
 
 #include "ED_screen.h"
 #include "ED_types.h"
@@ -53,81 +71,591 @@
 
 #include "UI_interface.h"
 #include "UI_resources.h"
+#include "UI_text.h"
 #include "UI_view2d.h"
 
+#include "RNA_access.h"
+
+#ifndef DISABLE_PYTHON
+#include "BPY_extern.h"
+// XXX #include "BPY_menus.h"
+#endif
+
 #include "text_intern.h"
 
+#define HEADER_PATH_MAX	260
 
 /* ************************ header area region *********************** */
 
-static void do_viewmenu(bContext *C, void *arg, int event)
+#ifndef DISABLE_PYTHON
+static void do_text_template_scriptsmenu(bContext *C, void *arg, int event)
 {
-	
+	// XXX BPY_menu_do_python(PYMENU_SCRIPTTEMPLATE, event);
 }
 
-static uiBlock *dummy_viewmenu(bContext *C, ARegion *ar, void *arg_unused)
+uiBlock *text_template_scriptsmenu(bContext *C, void *args_unused)
 {
-	ScrArea *curarea= CTX_wm_area(C);
+	ARegion *ar= CTX_wm_region(C);
 	uiBlock *block;
-	short yco= 0, menuwidth=120;
-	
-	block= uiBeginBlock(C, ar, "dummy_viewmenu", UI_EMBOSSP, UI_HELV);
-	uiBlockSetButmFunc(block, do_viewmenu, NULL);
+	// XXX BPyMenu *pym;
+	// int i= 0;
+	// short yco = 20, menuwidth = 120;
 	
-	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Nothing yet", 0, yco-=20, 
-					 menuwidth, 19, NULL, 0.0, 0.0, 1, 3, "");
+	block= uiBeginBlock(C, ar, "text_template_scriptsmenu", UI_EMBOSSP, UI_HELV);
+	uiBlockSetButmFunc(block, do_text_template_scriptsmenu, NULL);
 	
-	if(curarea->headertype==HEADERTOP) {
-		uiBlockSetDirection(block, UI_DOWN);
-	}
-	else {
-		uiBlockSetDirection(block, UI_TOP);
-		uiBlockFlipOrder(block);
-	}
+	/* note that we acount for the N previous entries with i+20: */
+	/* XXX for (pym = BPyMenuTable[PYMENU_SCRIPTTEMPLATE]; pym; pym = pym->next, i++) {
+		
+		uiDefIconTextBut(block, BUTM, 1, ICON_PYTHON, pym->name, 0, yco-=20, menuwidth, 19, 
+						 NULL, 0.0, 0.0, 1, i, 
+						 pym->tooltip?pym->tooltip:pym->filename);
+	}*/
 	
-	uiTextBoundsBlock(block, 50);
+	uiBlockSetDirection(block, UI_RIGHT);
+	uiTextBoundsBlock(block, 60);
+
 	uiEndBlock(C, block);
+	uiDrawBlock(C, block);
+	
+	return block;
+}
+
+static void do_text_plugin_scriptsmenu(bContext *C, void *arg, int event)
+{
+	// XXX BPY_menu_do_python(PYMENU_TEXTPLUGIN, event);
+}
+
+uiBlock *text_plugin_scriptsmenu(bContext *C, void *args_unused)
+{
+	ARegion *ar= CTX_wm_region(C);
+	uiBlock *block;
+	// XXX BPyMenu *pym;
+	// int i= 0;
+	// short yco = 20, menuwidth = 120;
+	
+	block= uiBeginBlock(C, ar, "text_plugin_scriptsmenu", UI_EMBOSSP, UI_HELV);
+	uiBlockSetButmFunc(block, do_text_plugin_scriptsmenu, NULL);
 	
+	/* note that we acount for the N previous entries with i+20: */
+	/* XXX for (pym = BPyMenuTable[PYMENU_TEXTPLUGIN]; pym; pym = pym->next, i++) {
+		
+		uiDefIconTextBut(block, BUTM, 1, ICON_PYTHON, pym->name, 0, yco-=20, menuwidth, 19, 
+						 NULL, 0.0, 0.0, 1, i, 
+						 pym->tooltip?pym->tooltip:pym->filename);
+	}*/
+	
+	uiBlockSetDirection(block, UI_RIGHT);
+	uiTextBoundsBlock(block, 60);
+
+	uiEndBlock(C, block);
+	uiDrawBlock(C, block);
+
 	return block;
 }
+#endif
+
+static void text_editmenu_viewmenu(bContext *C, uiMenuItem *head, void *arg_unused)
+{
+	uiMenuItemEnumO(head, "Top of File", 0, "TEXT_OT_move", "type", FILE_TOP);
+	uiMenuItemEnumO(head, "Bottom of File", 0, "TEXT_OT_move", "type", FILE_BOTTOM);
+}
+
+static void text_editmenu_selectmenu(bContext *C, uiMenuItem *head, void *arg_unused)
+{
+	uiMenuItemO(head, 0, "TEXT_OT_select_all");
+	uiMenuItemO(head, 0, "TEXT_OT_select_line");
+}
+
+static void text_editmenu_markermenu(bContext *C, uiMenuItem *head, void *arg_unused)
+{
+	uiMenuItemO(head, 0, "TEXT_OT_clear_all_markers");
+	uiMenuItemO(head, 0, "TEXT_OT_next_marker");
+	uiMenuItemO(head, 0, "TEXT_OT_previous_marker");
+}
+
+static void text_formatmenu(bContext *C, uiMenuItem *head, void *arg_unused)
+{
+	uiMenuItemO(head, 0, "TEXT_OT_indent");
+	uiMenuItemO(head, 0, "TEXT_OT_unindent");
+
+	uiMenuSeparator(head);
+
+	uiMenuItemO(head, 0, "TEXT_OT_comment");
+	uiMenuItemO(head, 0, "TEXT_OT_uncomment");
+
+	uiMenuSeparator(head);
+
+	uiMenuLevelEnumO(head, "TEXT_OT_convert_whitespace", "type");
+}
 
-static void do_text_buttons(bContext *C, void *arg, int event)
+static void text_editmenu_to3dmenu(bContext *C, uiMenuItem *head, void *arg_unused)
 {
+	uiMenuItemBooleanO(head, "One Object", 0, "TEXT_OT_to_3d_object", "split_lines", 0);
+	uiMenuItemBooleanO(head, "One Object Per Line", 0, "TEXT_OT_to_3d_object", "split_lines", 1);
+}
+
+static void text_editmenu(bContext *C, uiMenuItem *head, void *arg_unused)
+{
+	uiMenuItemO(head, 0, "ED_OT_undo");
+	uiMenuItemO(head, 0, "ED_OT_redo");
+
+	uiMenuSeparator(head);
+
+	uiMenuItemO(head, 0, "TEXT_OT_cut");
+	uiMenuItemO(head, 0, "TEXT_OT_copy");
+	uiMenuItemO(head, 0, "TEXT_OT_paste");
+
+	uiMenuSeparator(head);
+
+	uiMenuLevel(head, "View", text_editmenu_viewmenu);
+	uiMenuLevel(head, "Select", text_editmenu_selectmenu);
+	uiMenuLevel(head, "Markers", text_editmenu_markermenu);
+
+	uiMenuSeparator(head);
+
+	uiMenuItemO(head, 0, "TEXT_OT_jump");
+	uiMenuItemO(head, 0, "TEXT_OT_find_and_replace");
+
+	uiMenuSeparator(head);
+
+	uiMenuLevel(head, "Text to 3D Object", text_editmenu_to3dmenu);
+}
+
+static void text_filemenu(bContext *C, uiMenuItem *head, void *arg_unused)
+{
+	SpaceText *st= (SpaceText*)CTX_wm_space_data(C);
+	Text *text= st->text;
+
+	uiMenuItemO(head, 0, "TEXT_OT_new");
+	uiMenuItemO(head, 0, "TEXT_OT_open");
+	
+	if(text) {
+		uiMenuItemO(head, 0, "TEXT_OT_reload");
+		
+		uiMenuSeparator(head);
+		
+		uiMenuItemO(head, 0, "TEXT_OT_save");
+		uiMenuItemO(head, 0, "TEXT_OT_save_as");
+		
+		if(text->name)
+			uiMenuItemO(head, 0, "TEXT_OT_make_internal");
+
+		uiMenuSeparator(head);
+		
+		uiMenuItemO(head, 0, "TEXT_OT_run_script");
+
+#ifndef DISABLE_PYTHON
+		if(BPY_is_pyconstraint(text))
+			uiMenuItemO(head, 0, "TEXT_OT_refresh_pyconstraints");
+#endif
+	}
+
+#ifndef DISABLE_PYTHON
+	// XXX uiMenuSeparator(head);
+
+	// XXX uiDefIconTextBlockBut(block, text_template_scriptsmenu, NULL, ICON_RIGHTARROW_THIN, "Script Templates", 0, yco-=20, 120, 19, "");
+	// XXX uiDefIconTextBlockBut(block, text_plugin_scriptsmenu, NULL, ICON_RIGHTARROW_THIN, "Text Plugins", 0, yco-=20, 120, 19, "");
+#endif
+}
+
+/*********************** datablock browse *************************/
+
+static void text_unlink(Main *bmain, Text *text)
+{
+	bScreen *scr;
+	ScrArea *area;
+	SpaceLink *sl;
+
+	/* XXX this ifdef is in fact dangerous, if python is
+	 * disabled it will leave invalid pointers in files! */
+
+#ifndef DISABLE_PYTHON
+	// XXX BPY_clear_bad_scriptlinks(text);
+	// XXX BPY_free_pyconstraint_links(text);
+	// XXX free_text_controllers(text);
+
+	/* check if this text was used as script link:
+	 * this check function unsets the pointers and returns how many
+	 * script links used this Text */
+	if(0) // XXX BPY_text_check_all_scriptlinks (text))
+		; // XXX notifier: allqueue(REDRAWBUTSSCRIPT, 0);
+
+	/* equivalently for pynodes: */
+	if(0) // XXX nodeDynamicUnlinkText ((ID*)text))
+		; // XXX notifier: allqueue(REDRAWNODE, 0);
+#endif
+	
+	for(scr= bmain->screen.first; scr; scr= scr->id.next) {
+		for(area= scr->areabase.first; area; area= area->next) {
+			for(sl= area->spacedata.first; sl; sl= sl->next) {
+				if(sl->spacetype==SPACE_TEXT) {
+					SpaceText *st= (SpaceText*) sl;
+					
+					if(st->text==text) {
+						st->text= NULL;
+						st->top= 0;
+						
+						if(st==area->spacedata.first)
+							ED_area_tag_redraw(area);
+					}
+				}
+			}
+		}
+	}
+
+	free_libblock(&bmain->text, text);
+}
+
+static void text_idpoin_handle(bContext *C, ID *id, int event)
+{
+	SpaceText *st= (SpaceText*)CTX_wm_space_data(C);
+	Text *text;
+
 	switch(event) {
+		case UI_ID_BROWSE:
+			st->text= (Text*)id;
+			st->top= 0;
+
+			text_update_edited(st->text);
+			WM_event_add_notifier(C, NC_TEXT|ND_CURSOR, st->text);
+
+			ED_undo_push(C, "Browse Text");
+			break;
+		case UI_ID_DELETE:
+			text= st->text;
+
+			/* make the previous text active, if its not there make the next text active */
+			if(text->id.prev) {
+				st->text = text->id.prev;
+				WM_event_add_notifier(C, NC_TEXT|ND_CURSOR, st->text);
+			}
+			else if(text->id.next) {
+				st->text = text->id.next;
+				WM_event_add_notifier(C, NC_TEXT|ND_CURSOR, st->text);
+			}
+
+			text_unlink(CTX_data_main(C), text);
+			WM_event_add_notifier(C, NC_TEXT|NA_REMOVED, text);
+
+			ED_undo_push(C, "Delete Text");
+			break;
+		case UI_ID_RENAME:
+			break;
+		case UI_ID_ADD_NEW:
+			WM_operator_name_call(C, "TEXT_OT_new", WM_OP_INVOKE_REGION_WIN, NULL);
+			break;
+		case UI_ID_OPEN:
+			WM_operator_name_call(C, "TEXT_OT_open", WM_OP_INVOKE_REGION_WIN, NULL);
+			break;
 	}
 }
 
+/********************** header buttons ***********************/
 
 void text_header_buttons(const bContext *C, ARegion *ar)
 {
+	bScreen *sc= CTX_wm_screen(C);
+	SpaceText *st= (SpaceText*)CTX_wm_space_data(C);
+	PointerRNA spaceptr;
+	Text *text= st->text;
 	ScrArea *sa= CTX_wm_area(C);
 	uiBlock *block;
-	int xco, yco= 3;
+	int xco, yco= 3, xmax, oldcol;
 	
+	RNA_pointer_create(&sc->id, &RNA_SpaceTextEditor, st, &spaceptr);
+
 	block= uiBeginBlock(C, ar, "header buttons", UI_EMBOSS, UI_HELV);
-	uiBlockSetHandleFunc(block, do_text_buttons, NULL);
 	
 	xco= ED_area_header_standardbuttons(C, block, yco);
 	
 	if((sa->flag & HEADER_NO_PULLDOWN)==0) {
-		int xmax;
-		
 		/* pull down menus */
 		uiBlockSetEmboss(block, UI_EMBOSSP);
 		
-		xmax= GetButStringLength("View");
-		uiDefPulldownBut(block, dummy_viewmenu, CTX_wm_area(C), 
-						 "View", xco, yco-2, xmax-3, 24, "");
-		xco+=XIC+xmax;
+		xmax= GetButStringLength("Text");
+		uiDefMenuBut(block, text_filemenu, NULL, "Text", xco, yco-2, xmax-3, 24, "");
+		xco+=xmax;
+	
+		if(text) {
+			xmax= GetButStringLength("Edit");
+			uiDefMenuBut(block, text_editmenu, NULL, "Edit", xco, yco-2, xmax-3, 24, "");
+			xco+=xmax;
+			
+			xmax= GetButStringLength("Format");
+			uiDefMenuBut(block, text_formatmenu, NULL, "Format", xco, yco-2, xmax-3, 24, "");
+			xco+=xmax;
+		}
 	}
 	
 	uiBlockSetEmboss(block, UI_EMBOSS);
 
+	uiBlockBeginAlign(block);
+	uiDefIconButR(block, ICONTOG, 0, ICON_LINENUMBERS_OFF, xco, yco,XIC,YIC, &spaceptr, "line_numbers", 0, 0, 0, 0, 0, NULL);
+	uiDefIconButR(block, ICONTOG, 0, ICON_WORDWRAP_OFF, xco+=XIC, yco,XIC,YIC, &spaceptr, "word_wrap", 0, 0, 0, 0, 0, NULL);
+	uiDefIconButR(block, ICONTOG, 0, ICON_SYNTAX_OFF, xco+=XIC, yco,XIC,YIC, &spaceptr, "syntax_highlight", 0, 0, 0, 0, 0, NULL);
+	// uiDefIconButR(block, ICONTOG, 0, ICON_SCRIPTPLUGINS, xco+=XIC, yco,XIC,YIC, &spaceptr, "do_python_plugins", 0, 0, 0, 0, 0, "Enables Python text plugins");
+	uiBlockEndAlign(block);
+	
+	/* warning button if text is out of date */
+	if(text && text_file_modified(text)) {
+		xco+= XIC;
+
+		oldcol= uiBlockGetCol(block);
+		uiBlockSetCol(block, TH_REDALERT);
+		uiDefIconButO(block, BUT, "TEXT_OT_resolve_conflict", WM_OP_INVOKE_DEFAULT, ICON_HELP,	xco+=XIC,yco,XIC,YIC, "External text is out of sync, click for options to resolve the conflict");
+		uiBlockSetCol(block, oldcol);
+	}
+	
+	/* browse text datablock */
+	xco+= 2*XIC;
+	xco= uiDefIDPoinButs(block, CTX_data_main(C), NULL, (ID*)st->text, ID_TXT, NULL, xco, yco,
+		text_idpoin_handle, UI_ID_BROWSE|UI_ID_RENAME|UI_ID_ADD_NEW|UI_ID_OPEN|UI_ID_DELETE);
+	xco+=XIC;
+	
+	/*
+	if(st->text) {
+		if(st->text->flags & TXT_ISDIRTY && (st->text->flags & TXT_ISEXT || !(st->text->flags & TXT_ISMEM)))
+			uiDefIconBut(block, BUT,0, ICON_ERROR, xco+=XIC,yco,XIC,YIC, 0, 0, 0, 0, 0, "The text has been changed");
+		if(st->text->flags & TXT_ISEXT) 
+			uiDefBut(block, BUT,B_TEXTSTORE, ICON(),	xco+=XIC,yco,XIC,YIC, 0, 0, 0, 0, 0, "Stores text in project file");
+		else 
+			uiDefBut(block, BUT,B_TEXTSTORE, ICON(),	xco+=XIC,yco,XIC,YIC, 0, 0, 0, 0, 0, "Disables storing of text in project file");
+		xco+=10;
+	}
+	*/		
+	
+	/* display settings */
+	if(st->font_id>1) st->font_id= 0;
+	uiDefButR(block, MENU, 0, NULL, xco,yco,100,YIC, &spaceptr, "font_size", 0, 0, 0, 0, 0, NULL);
+	xco+=105;
+	
+	uiDefButR(block, NUM, 0, "Tab:", xco,yco,XIC+50,YIC, &spaceptr, "tab_width", 0, 0, 0, 0, 0, NULL);
+	xco+= XIC+50;
+
+	/* file info */
+	if(text) {
+		char fname[HEADER_PATH_MAX], headtxt[HEADER_PATH_MAX+17];
+		int len;
+
+		if(text->name) {
+			len = strlen(text->name);
+			if(len > HEADER_PATH_MAX-1)
+				len = HEADER_PATH_MAX-1;
+			strncpy(fname, text->name, len);
+			fname[len]='\0';
+			if(text->flags & TXT_ISDIRTY)
+				sprintf(headtxt, "File: *%s (unsaved)", fname);
+			else
+				sprintf(headtxt, "File: %s", fname);
+		}
+		else
+			sprintf(headtxt, text->id.lib? "Text: External": "Text: Internal");
+
+		UI_ThemeColor(TH_MENU_TEXT);
+		UI_RasterPos(xco+=XIC, yco+6);
+
+		UI_DrawString(G.font, headtxt, 0);
+		xco += UI_GetStringWidth(G.font, headtxt, 0);
+	}
+
+	uiEndBlock(C, block);
+	uiDrawBlock(C, block);
+
 	/* always as last  */
 	UI_view2d_totRect_set(&ar->v2d, xco+XIC+80, ar->v2d.tot.ymax-ar->v2d.tot.ymin);
+}
+
+/************************* find & replace ***************************/
+
+void text_find_buttons(const bContext *C, ARegion *ar)
+{
+	bScreen *sc= CTX_wm_screen(C);
+	SpaceText *st= CTX_wm_space_text(C);
+	PointerRNA spaceptr;
+	uiBlock *block;
+	int xco= 5, yco= 3;
+	
+	RNA_pointer_create(&sc->id, &RNA_SpaceTextEditor, st, &spaceptr);
+
+	block= uiBeginBlock(C, ar, "find buttons", UI_EMBOSS, UI_HELV);
+
+	/* find */
+	uiBlockBeginAlign(block);
+	uiDefButR(block, TEX, 0, "Find: ", xco, yco,220,20, &spaceptr, "find_text", 0, 0, 0, 0, 0, NULL);
+	xco += 220;
+	uiDefIconButO(block, BUT, "TEXT_OT_find_set_selected", WM_OP_INVOKE_DEFAULT, ICON_TEXT, xco,yco,20,20, "Copy from selection");
+	xco += 20+XIC;
+	uiBlockEndAlign(block);
+
+	/* replace */
+	uiBlockBeginAlign(block);
+	uiDefButR(block, TEX, 0, "Replace: ", xco, yco,220,20, &spaceptr, "replace_text", 0, 0, 0, 0, 0, NULL);
+	xco += 220;
+	uiDefIconButO(block, BUT, "TEXT_OT_replace_set_selected", WM_OP_INVOKE_DEFAULT, ICON_TEXT, xco,yco,20,20, "Copy from selection");
+	xco += 20+XIC;
+	uiBlockEndAlign(block);
+
+	uiBlockBeginAlign(block);
+	uiDefButR(block, TOG, 0, "Wrap", xco, yco,60,20, &spaceptr, "find_wrap", 0, 0, 0, 0, 0, NULL);
+	xco += 60;
+	uiDefButR(block, TOG, 0, "All", xco, yco,60,20, &spaceptr, "find_all", 0, 0, 0, 0, 0, NULL);
+	xco += 50+XIC;
+	uiBlockEndAlign(block);
+
+	uiBlockBeginAlign(block);
+	uiDefButO(block, BUT, "TEXT_OT_find", WM_OP_INVOKE_REGION_WIN, "Find", xco,yco,50,20, "Find next.");
+	xco += 50;
+	uiDefButO(block, BUT, "TEXT_OT_replace", WM_OP_INVOKE_REGION_WIN, "Replace", xco,yco,70,20, "Replace then find next.");
+	xco += 70;
+	uiDefButO(block, BUT, "TEXT_OT_mark_all", WM_OP_INVOKE_REGION_WIN, "Mark All", xco,yco,80,20, "Mark each occurrence to edit all from one");
+	xco += 80;
+	uiBlockEndAlign(block);
 	
 	uiEndBlock(C, block);
 	uiDrawBlock(C, block);
+
+	/* always as last  */
+	UI_view2d_totRect_set(&ar->v2d, xco+XIC+80, ar->v2d.tot.ymax-ar->v2d.tot.ymin);
 }
 
+ARegion *text_has_find_region(ScrArea *sa)
+{
+	ARegion *ar, *arnew;
+	
+	for(ar= sa->regionbase.first; ar; ar= ar->next)
+		if(ar->regiontype==RGN_TYPE_UI)
+			return ar;
+	
+	/* add subdiv level; after header */
+	for(ar= sa->regionbase.first; ar; ar= ar->next)
+		if(ar->regiontype==RGN_TYPE_HEADER)
+			break;
+	
+	/* is error! */
+	if(ar==NULL) return NULL;
+	
+	arnew= MEM_callocN(sizeof(ARegion), "find and replace region");
+	
+	BLI_insertlinkafter(&sa->regionbase, ar, arnew);
+	arnew->regiontype= RGN_TYPE_UI;
+	arnew->alignment= RGN_ALIGN_BOTTOM;
+	
+	arnew->flag = RGN_FLAG_HIDDEN;
+	
+	return arnew;
+}
+
+static int find_and_replace_poll(bContext *C)
+{
+	SpaceText *st= CTX_wm_space_text(C);
+	Text *text= CTX_data_edit_text(C);
+
+	return (st && text);
+}
+
+static int find_and_replace_exec(bContext *C, wmOperator *op)
+{
+	ScrArea *sa= CTX_wm_area(C);
+	ARegion *ar= text_has_find_region(sa);
+	
+	if(ar) {
+		ar->flag ^= RGN_FLAG_HIDDEN;
+		ar->v2d.flag &= ~V2D_IS_INITIALISED; /* XXX should become hide/unhide api? */
+		
+		ED_area_initialize(CTX_wm_manager(C), CTX_wm_window(C), sa);
+		ED_area_tag_redraw(sa);
+	}
+
+	return OPERATOR_FINISHED;
+}
+
+void TEXT_OT_find_and_replace(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Find and Replace";
+	ot->idname= "TEXT_OT_find_and_replace";
+	
+	/* api callbacks */
+	ot->exec= find_and_replace_exec;
+	ot->poll= find_and_replace_poll;
+}
+
+/******************** XXX popup menus *******************/
+
+#if 0
+{
+	// RMB
+
+	uiMenuItem *head;
+
+	if(text) {
+		head= uiPupMenuBegin("Text", 0);
+		if(txt_has_sel(text)) {
+			uiMenuItemO(head, 0, "TEXT_OT_cut");
+			uiMenuItemO(head, 0, "TEXT_OT_copy");
+		}
+		uiMenuItemO(head, 0, "TEXT_OT_paste");
+		uiMenuItemO(head, 0, "TEXT_OT_new");
+		uiMenuItemO(head, 0, "TEXT_OT_open");
+		uiMenuItemO(head, 0, "TEXT_OT_save");
+		uiMenuItemO(head, 0, "TEXT_OT_save_as");
+		uiMenuItemO(head, 0, "TEXT_OT_run_script");
+		uiPupMenuEnd(C, head);
+	}
+	else {
+		head= uiPupMenuBegin("File", 0);
+		uiMenuItemO(head, 0, "TEXT_OT_new");
+		uiMenuItemO(head, 0, "TEXT_OT_open");
+		uiPupMenuEnd(C, head);
+	}
+}
+
+{
+	// Alt+Shift+E
+
+	uiMenuItem *head;
+
+	head= uiPupMenuBegin("Edit", 0);
+	uiMenuItemO(head, 0, "TEXT_OT_cut");
+	uiMenuItemO(head, 0, "TEXT_OT_copy");
+	uiMenuItemO(head, 0, "TEXT_OT_paste");
+	uiPupMenuEnd(C, head);
+}
+
+{
+	// Alt+Shift+F
+
+	uiMenuItem *head;
+
+	if(text) {
+		head= uiPupMenuBegin("Text", 0);
+		uiMenuItemO(head, 0, "TEXT_OT_new");
+		uiMenuItemO(head, 0, "TEXT_OT_open");
+		uiMenuItemO(head, 0, "TEXT_OT_save");
+		uiMenuItemO(head, 0, "TEXT_OT_save_as");
+		uiMenuItemO(head, 0, "TEXT_OT_run_script");
+		uiPupMenuEnd(C, head);
+	}
+	else {
+		head= uiPupMenuBegin("File", 0);
+		uiMenuItemO(head, 0, "TEXT_OT_new");
+		uiMenuItemO(head, 0, "TEXT_OT_open");
+		uiPupMenuEnd(C, head);
+	}
+}
+
+{
+	// Alt+Shift+V
+
+	uiMenuItem *head;
+
+	head= uiPupMenuBegin("Text", 0);
+	uiMenuItemEnumO(head, "Top of File", 0, "TEXT_OT_move", "type", FILE_TOP);
+	uiMenuItemEnumO(head, "Bottom of File", 0, "TEXT_OT_move", "type", FILE_BOTTOM);
+	uiMenuItemEnumO(head, "Page Up", 0, "TEXT_OT_move", "type", PREV_PAGE);
+	uiMenuItemEnumO(head,  "Page Down", 0, "TEXT_OT_move", "type", NEXT_PAGE);
+	uiPupMenuEnd(C, head);
+}
+#endif