netsurf/desktop/textinput.c
Vincent Sanders 17be8cf216 Put the font operations table alongside all the other core API
The netsurf core is driven from numerous operation tables most of
which are now set through a common netsurf_register() interface. The
font and plotting interfaces are currently separate and unlike all the
other operation tables are modified for differing contexts.

This change moves the font operations alongside all the other
operations table and remove unnecessary interaction with the renderers
font internals. Further this also removes the need for css internals
to be visible in frontends.
2014-10-13 11:56:31 +01:00

141 lines
3.5 KiB
C

/*
* Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
* Copyright 2004 Andrew Timmins <atimmins@blueyonder.co.uk>
* Copyright 2004 John Tytgat <joty@netsurf-browser.org>
* Copyright 2005 Adrian Lees <adrianl@users.sourceforge.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file
* Textual input handling implementation
*/
#include <assert.h>
#include <ctype.h>
#include <string.h>
#include <dom/dom.h>
#include "utils/log.h"
#include "utils/talloc.h"
#include "utils/utf8.h"
#include "utils/utils.h"
#include "render/box.h"
#include "render/form.h"
#include "render/html_internal.h"
#include "render/layout.h"
#include "desktop/browser_private.h"
#include "desktop/gui_factory.h"
#include "desktop/mouse.h"
#include "desktop/scrollbar.h"
#include "desktop/selection.h"
#include "desktop/textinput.h"
/* Define to enable textinput debug */
#undef TEXTINPUT_DEBUG
/**
* Position the caret and assign a callback for key presses.
*
* \param bw The browser window in which to place the caret
* \param x X coordinate of the caret
* \param y Y coordinate
* \param height Height of caret
* \param clip Clip rectangle for caret, or NULL if none
*/
void browser_window_place_caret(struct browser_window *bw, int x, int y,
int height, const struct rect *clip)
{
struct browser_window *root_bw;
int pos_x = 0;
int pos_y = 0;
struct rect cr;
struct rect *crp = NULL;
/* Find top level browser window */
root_bw = browser_window_get_root(bw);
browser_window_get_position(bw, true, &pos_x, &pos_y);
x = x * bw->scale + pos_x;
y = y * bw->scale + pos_y;
if (clip != NULL) {
cr = *clip;
cr.x0 += pos_x;
cr.y0 += pos_y;
cr.x1 += pos_x;
cr.y1 += pos_y;
crp = &cr;
}
/* TODO: intersect with bw viewport */
guit->window->place_caret(root_bw->window, x, y, height * bw->scale, crp);
/* Set focus browser window */
root_bw->focus = bw;
root_bw->can_edit = true;
}
/**
* Removes the caret and callback for key process.
*
* \param bw The browser window from which to remove caret
*/
void browser_window_remove_caret(struct browser_window *bw, bool only_hide)
{
struct browser_window *root_bw;
root_bw = browser_window_get_root(bw);
assert(root_bw != NULL);
if (only_hide)
root_bw->can_edit = true;
else
root_bw->can_edit = false;
if (root_bw->window) {
guit->window->remove_caret(root_bw->window);
}
}
/**
* Handle key presses in a browser window.
*
* \param bw The root browser window
* \param key The UCS4 character codepoint
* \return true if key handled, false otherwise
*/
bool browser_window_key_press(struct browser_window *bw, uint32_t key)
{
struct browser_window *focus = bw->focus;
assert(bw->window != NULL);
if (focus == NULL)
focus = bw;
if (focus->current_content == NULL)
return false;
return content_keypress(focus->current_content, key);
}