core: add mouse support (task #5435), free cursor movement, hook_focus, fix bugs with key "^" (bug #32072, bug #21381), fix bugs with bar windows, completion and /buffer

New features and bugs fixed:
- mouse support: new command /mouse, new option weechat.look.mouse, new key context "mouse"
- free movement of cursor: new command /cursor, new key context "cursor"
- new hook_focus (used by cursor and mouse)
- info "cursor_mode"
- bugs fixed with key "^"
- allow plugin name in /buffer name
- fix bugs with bar windows: do not create bar windows for hidden bars
- fix completion bug when two words for completion are equal but with different case
- automatic scroll direction in /bar scroll (x/y is now optional)

1 files changed, 337 insertions, 0 deletions

diff --git a/src/gui/gui-cursor.c b/src/gui/gui-cursor.c
new file mode 100644
index 000000000..f210826cf
--- /dev/null
+++ b/src/gui/gui-cursor.c
@@ -0,0 +1,337 @@
+/*
+ * Copyright (C) 2011 Sebastien Helleu <flashcode@flashtux.org>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * gui-cursor.c: functions for free movement of cursor (used by all GUI)
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "../core/weechat.h"
+#include "gui-cursor.h"
+#include "gui-bar.h"
+#include "gui-bar-window.h"
+#include "gui-buffer.h"
+#include "gui-chat.h"
+#include "gui-color.h"
+#include "gui-input.h"
+#include "gui-window.h"
+
+
+int gui_cursor_mode = 0;               /* cursor mode? (free movement)      */
+int gui_cursor_debug = 0;              /* debug mode (show info in input)   */
+int gui_cursor_x = 0;                  /* position of cursor in cursor mode */
+int gui_cursor_y = 0;                  /* position of cursor in cursor mode */
+
+
+/*
+ * gui_cursor_mode_toggle: toggle cursor mode
+ */
+
+void
+gui_cursor_mode_toggle ()
+{
+    gui_cursor_mode ^= 1;
+    
+    if (gui_cursor_mode)
+    {
+        if (gui_cursor_debug)
+            gui_input_delete_line (gui_current_window->buffer);
+        gui_cursor_x = gui_window_cursor_x;
+        gui_cursor_y = gui_window_cursor_y;
+        gui_cursor_move_xy (0, 0);
+    }
+    else
+    {
+        /* restore input (and move cursor in input) */
+        if (gui_cursor_debug)
+            gui_input_delete_line (gui_current_window->buffer);
+        gui_input_text_changed_modifier_and_signal (gui_current_window->buffer, 0);
+        gui_buffer_ask_chat_refresh (gui_current_window->buffer, 2);
+    }
+}
+
+/*
+ * gui_cursor_debug_toggle: toggle debug for cursor mode
+ */
+
+void
+gui_cursor_debug_toggle ()
+{
+    gui_cursor_debug ^= 1;
+
+    if (gui_cursor_debug)
+        gui_chat_printf (NULL, _("Debug enabled for cursor mode"));
+    else
+        gui_chat_printf (NULL, _("Debug disabled for cursor mode"));
+}
+
+/*
+ * gui_cursor_get_info: get info about what is pointed by cursor at (x,y)
+ */
+
+void
+gui_cursor_get_info (int x, int y, struct t_gui_cursor_info *cursor_info)
+{
+    cursor_info->x = x;
+    cursor_info->y = y;
+    
+    /* search window */
+    cursor_info->window = gui_window_search_by_xy (x, y);
+    
+    /* chat area in this window? */
+    if (cursor_info->window
+        && (x >= (cursor_info->window)->win_chat_x)
+        && (y >= (cursor_info->window)->win_chat_y)
+        && (x <= (cursor_info->window)->win_chat_x + (cursor_info->window)->win_chat_width - 1)
+        && (y <= (cursor_info->window)->win_chat_y + (cursor_info->window)->win_chat_height - 1))
+    {
+        cursor_info->chat = 1;
+    }
+    else
+        cursor_info->chat = 0;
+    
+    /* search bar window, item, and line/col in item */
+    gui_bar_window_search_by_xy (cursor_info->window, x, y,
+                                 &cursor_info->bar_window,
+                                 &cursor_info->bar_item,
+                                 &cursor_info->item_line,
+                                 &cursor_info->item_col);
+}
+
+/*
+ * gui_cursor_display_debug_info: display debug info about (x,y) in input
+ */
+
+void
+gui_cursor_display_debug_info ()
+{
+    struct t_gui_cursor_info cursor_info;
+    char str_info[1024];
+    
+    if (!gui_cursor_debug)
+        return;
+    
+    gui_cursor_get_info (gui_cursor_x, gui_cursor_y, &cursor_info);
+    
+    snprintf (str_info, sizeof (str_info),
+              "%s(%d,%d) window:0x%lx (buffer: %s), chat: %d, "
+              "bar_window:0x%lx (bar: %s, item: %s, line: %d, col: %d)",
+              gui_color_get_custom ("yellow,red"),
+              cursor_info.x, cursor_info.y,
+              (long unsigned int)cursor_info.window,
+              (cursor_info.window) ? (cursor_info.window)->buffer->name : "-",
+              cursor_info.chat,
+              (long unsigned int)cursor_info.bar_window,
+              (cursor_info.bar_window) ? (cursor_info.bar_window)->bar->name : "-",
+              (cursor_info.bar_item) ? cursor_info.bar_item : "-",
+              cursor_info.item_line,
+              cursor_info.item_col);
+    gui_input_delete_line (gui_current_window->buffer);
+    gui_input_insert_string (gui_current_window->buffer, str_info, -1);
+}
+
+/*
+ * gui_cursor_move_xy: set cursor at position (x,y)
+ */
+
+void
+gui_cursor_move_xy (int x, int y)
+{
+    if (!gui_cursor_mode)
+        gui_cursor_mode_toggle ();
+    
+    gui_cursor_x = x;
+    gui_cursor_y = y;
+    
+    if (gui_cursor_x < 0)
+        gui_cursor_x = 0;
+    else if (gui_cursor_x > gui_window_get_width () - 1)
+        gui_cursor_x = gui_window_get_width () - 1;
+    
+    if (gui_cursor_y < 0)
+        gui_cursor_y = 0;
+    else if (gui_cursor_y > gui_window_get_height () - 1)
+        gui_cursor_y = gui_window_get_height () - 1;
+    
+    gui_cursor_display_debug_info ();
+    gui_window_move_cursor ();
+}
+
+/*
+ * gui_cursor_move_add_xy: move cursor by adding values to (x,y)
+ */
+
+void
+gui_cursor_move_add_xy (int add_x, int add_y)
+{
+    if (!gui_cursor_mode)
+        gui_cursor_mode_toggle ();
+    
+    gui_cursor_x += add_x;
+    gui_cursor_y += add_y;
+    
+    if (gui_cursor_x < 0)
+        gui_cursor_x = gui_window_get_width () - 1;
+    else if (gui_cursor_x > gui_window_get_width () - 1)
+        gui_cursor_x = 0;
+    
+    if (gui_cursor_y < 0)
+        gui_cursor_y = gui_window_get_height () - 1;
+    else if (gui_cursor_y > gui_window_get_height () - 1)
+        gui_cursor_y = 0;
+    
+    gui_cursor_display_debug_info ();
+    gui_window_move_cursor ();
+}
+
+/*
+ * gui_cursor_move_area_add_xy: move cursor to another area by adding values to
+ *                              (x,y)
+ */
+
+void
+gui_cursor_move_area_add_xy (int add_x, int add_y)
+{
+    int x, y, width, height, area_found;
+    struct t_gui_cursor_info cursor_info_old, cursor_info_new;
+    
+    if (!gui_cursor_mode)
+        gui_cursor_mode_toggle ();
+    
+    area_found = 0;
+    
+    x = gui_cursor_x;
+    y = gui_cursor_y;
+    width = gui_window_get_width ();
+    height = gui_window_get_height ();
+    
+    gui_cursor_get_info (x, y, &cursor_info_old);
+    
+    if (add_x != 0)
+        x += add_x;
+    else
+        y += add_y;
+    
+    while ((x >= 0) && (x < width) && (y >= 0) && (y < height))
+    {
+        gui_cursor_get_info (x, y, &cursor_info_new);
+        if (((cursor_info_new.window && cursor_info_new.chat)
+             || cursor_info_new.bar_window)
+            && ((cursor_info_old.window != cursor_info_new.window)
+                || (cursor_info_old.bar_window != cursor_info_new.bar_window)))
+        {
+            area_found = 1;
+            break;
+        }
+        
+        if (add_x != 0)
+            x += add_x;
+        else
+            y += add_y;
+    }
+    
+    if (area_found)
+    {
+        if (cursor_info_new.window && cursor_info_new.chat)
+        {
+            x = (cursor_info_new.window)->win_chat_x;
+            y = (cursor_info_new.window)->win_chat_y;
+        }
+        else if (cursor_info_new.bar_window)
+        {
+            x = (cursor_info_new.bar_window)->x;
+            y = (cursor_info_new.bar_window)->y;
+        }
+        else
+            area_found = 0;
+    }
+    
+    if (area_found)
+    {
+        gui_cursor_x = x;
+        gui_cursor_y = y;
+        gui_cursor_display_debug_info ();
+        gui_window_move_cursor ();
+    }
+}
+
+/*
+ * gui_cursor_move_area: move cursor to another area by name
+ */
+
+void
+gui_cursor_move_area (const char *area)
+{
+    int area_found, x, y;
+    struct t_gui_bar_window *ptr_bar_win;
+    struct t_gui_bar *ptr_bar;
+    
+    area_found = 0;
+    x = 0;
+    y = 0;
+    
+    if (strcmp (area, "chat") == 0)
+    {
+        area_found = 1;
+        x = gui_current_window->win_chat_x;
+        y = gui_current_window->win_chat_y;
+    }
+    else
+    {
+        for (ptr_bar_win = gui_current_window->bar_windows; ptr_bar_win;
+             ptr_bar_win = ptr_bar_win->next_bar_window)
+        {
+            if (strcmp (ptr_bar_win->bar->name, area) == 0)
+            {
+                area_found = 1;
+                x = ptr_bar_win->x;
+                y = ptr_bar_win->y;
+                break;
+            }
+        }
+        if (!area_found)
+        {
+            for (ptr_bar = gui_bars; ptr_bar; ptr_bar = ptr_bar->next_bar)
+            {
+                if (ptr_bar->bar_window && (strcmp (ptr_bar->name, area) == 0))
+                {
+                    area_found = 1;
+                    x = ptr_bar->bar_window->x;
+                    y = ptr_bar->bar_window->y;
+                }
+            }
+        }
+    }
+    
+    if (area_found)
+    {
+        if (!gui_cursor_mode)
+            gui_cursor_mode_toggle ();
+        gui_cursor_x = x;
+        gui_cursor_y = y;
+        gui_cursor_display_debug_info ();
+        gui_window_move_cursor ();
+    }
+}