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netsurf/riscos/window.c

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/*
* This file is part of NetSurf, http://netsurf.sourceforge.net/
* Licensed under the GNU General Public License,
* http://www.opensource.org/licenses/gpl-license
* Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
* Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
* Copyright 2004 Andrew Timmins <atimmins@blueyonder.co.uk>
* Copyright 2005 Richard Wilson <info@tinct.net>
* Copyright 2005 Adrian Lees <adrianl@users.sourceforge.net>
*/
/** \file
* Browser window handling (implementation).
*/
#include <assert.h>
#include <ctype.h>
#include <math.h>
#include <stdbool.h>
#include <time.h>
#include <string.h>
#include "oslib/colourtrans.h"
#include "oslib/osbyte.h"
#include "oslib/osfile.h"
#include "oslib/osspriteop.h"
#include "oslib/serviceinternational.h"
#include "oslib/wimp.h"
#include "oslib/wimpspriteop.h"
#include "netsurf/utils/config.h"
#include "netsurf/content/content.h"
#include "netsurf/content/url_store.h"
#include "netsurf/css/css.h"
#include "netsurf/desktop/browser.h"
#include "netsurf/desktop/plotters.h"
#include "netsurf/desktop/textinput.h"
#include "netsurf/render/box.h"
#include "netsurf/render/form.h"
#include "netsurf/riscos/buffer.h"
#include "netsurf/riscos/dialog.h"
#include "netsurf/riscos/global_history.h"
#include "netsurf/riscos/gui.h"
#include "netsurf/riscos/menus.h"
#include "netsurf/riscos/options.h"
#include "netsurf/riscos/theme.h"
#include "netsurf/riscos/thumbnail.h"
#include "netsurf/riscos/ucstables.h"
#include "netsurf/riscos/url_complete.h"
#include "netsurf/riscos/wimp.h"
#include "netsurf/utils/log.h"
#include "netsurf/utils/talloc.h"
#include "netsurf/utils/url.h"
#include "netsurf/utils/utf8.h"
#include "netsurf/utils/utils.h"
#include "netsurf/utils/messages.h"
#ifndef wimp_KEY_END
#define wimp_KEY_END wimp_KEY_COPY
#endif
#define SCROLL_VISIBLE_PADDING 32
/** List of all browser windows. */
static struct gui_window *window_list = 0;
/** GUI window which is being redrawn. Valid only during redraw. */
struct gui_window *ro_gui_current_redraw_gui;
static float scale_snap_to[] = {0.10, 0.125, 0.25, 0.333, 0.5, 0.75,
1.0,
1.5, 2.0, 3.0, 4.0, 6.0, 8.0, 12.0, 16.0};
#define SCALE_SNAP_TO_SIZE (sizeof scale_snap_to) / (sizeof(float))
static void ro_gui_window_launch_url(struct gui_window *g, const char *url);
static void ro_gui_window_clone_options(struct browser_window *new_bw,
struct browser_window *old_bw);
static browser_mouse_state ro_gui_mouse_drag_state(wimp_mouse_state buttons);
static bool ro_gui_window_import_text(struct gui_window *g, const char *filename,
bool toolbar);
/**
* Create and open a new browser window.
*
* \param bw browser_window structure to update
* \param clone the browser window to clone options from, or NULL for default
* \return gui_window, or 0 on error and error reported
*/
struct gui_window *gui_create_browser_window(struct browser_window *bw,
struct browser_window *clone)
{
int screen_width, screen_height, win_width, win_height, scroll_width;
static int window_count = 2;
wimp_window window;
wimp_window_state state;
os_error *error;
bool open_centred = true;
struct gui_window *g;
g = malloc(sizeof *g);
if (!g) {
warn_user("NoMemory", 0);
return 0;
}
g->bw = bw;
g->toolbar = 0;
g->reformat_pending = false;
g->old_width = 0;
g->old_height = 0;
strcpy(g->title, "NetSurf");
g->throbber = 0;
g->throbtime = 0;
/* Set the window position
*/
if (clone && clone->window && option_window_size_clone) {
state.w = clone->window->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
window.visible.x0 = state.visible.x0;
window.visible.x1 = state.visible.x1;
window.visible.y0 = state.visible.y0 - 48;
window.visible.y1 = state.visible.y1 - 48;
open_centred = false;
} else {
ro_gui_screen_size(&screen_width, &screen_height);
/* Check if we have a preferred position
*/
if ((option_window_screen_width != 0) &&
(option_window_screen_height != 0)) {
win_width = (option_window_width * screen_width) /
option_window_screen_width;
win_height = (option_window_height * screen_height) /
option_window_screen_height;
window.visible.x0 = (option_window_x * screen_width) /
option_window_screen_width;
window.visible.y0 = (option_window_y * screen_height) /
option_window_screen_height;
if (option_window_stagger) {
window.visible.y0 += 96 -
(48 * (window_count % 5));
}
open_centred = false;
if (win_width < 100)
win_width = 100;
if (win_height < 100)
win_height = 100;
} else {
/* Base how we define the window height/width
on the compile time options set */
#ifdef WITH_KIOSK_BROWSING
/* We're going fullscreen, forget the iconbar! */
win_width = screen_width;
win_height = screen_height;
#else
win_width = screen_width * 3 / 4;
if (1600 < win_width)
win_width = 1600;
win_height = win_width * 3 / 4;
#endif
window.visible.x0 = (screen_width - win_width) / 2;
window.visible.y0 = ((screen_height - win_height) / 2) +
96 - (48 * (window_count % 5));
}
window.visible.x1 = window.visible.x0 + win_width;
window.visible.y1 = window.visible.y0 + win_height;
}
/* Set the general window characteristics
*/
window.xscroll = 0;
window.yscroll = 0;
window.next = wimp_TOP;
/* Base how we define the window characteristics
on the compile time options set */
#ifdef WITH_KIOSK_BROWSING
window.flags = wimp_WINDOW_NEW_FORMAT |
wimp_WINDOW_VSCROLL |
wimp_WINDOW_HSCROLL |
wimp_WINDOW_IGNORE_XEXTENT |
wimp_WINDOW_IGNORE_YEXTENT |
wimp_WINDOW_SCROLL_REPEAT;
#else
window.flags = wimp_WINDOW_MOVEABLE |
wimp_WINDOW_NEW_FORMAT |
wimp_WINDOW_BACK_ICON |
wimp_WINDOW_CLOSE_ICON |
wimp_WINDOW_TITLE_ICON |
wimp_WINDOW_VSCROLL |
wimp_WINDOW_HSCROLL |
wimp_WINDOW_SIZE_ICON |
wimp_WINDOW_TOGGLE_ICON |
wimp_WINDOW_IGNORE_XEXTENT |
wimp_WINDOW_IGNORE_YEXTENT |
wimp_WINDOW_SCROLL_REPEAT;
#endif
window.title_fg = wimp_COLOUR_BLACK;
window.title_bg = wimp_COLOUR_LIGHT_GREY;
window.work_fg = wimp_COLOUR_LIGHT_GREY;
window.work_bg = wimp_COLOUR_TRANSPARENT;
window.scroll_outer = wimp_COLOUR_DARK_GREY;
window.scroll_inner = wimp_COLOUR_MID_LIGHT_GREY;
window.highlight_bg = wimp_COLOUR_CREAM;
window.extra_flags = 0;
window.extent.x0 = 0;
window.extent.y0 = window.visible.y1 - window.visible.y0;
window.extent.x1 = window.visible.x1 - window.visible.x0;
window.extent.y1 = 0;
window.title_flags = wimp_ICON_TEXT |
wimp_ICON_INDIRECTED |
wimp_ICON_HCENTRED;
window.work_flags = wimp_BUTTON_CLICK_DRAG <<
wimp_ICON_BUTTON_TYPE_SHIFT;
window.sprite_area = wimpspriteop_AREA;
window.xmin = 1;
window.ymin = 1;
window.title_data.indirected_text.text = g->title;
window.title_data.indirected_text.validation = (char *) -1;
window.title_data.indirected_text.size = 255;
window.icon_count = 0;
if (open_centred) {
scroll_width = ro_get_vscroll_width(NULL);
window.visible.x0 -= scroll_width;
}
error = xwimp_create_window(&window, &g->window);
if (error) {
LOG(("xwimp_create_window: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
free(g);
return 0;
}
g->prev = 0;
g->next = window_list;
if (window_list)
window_list->prev = g;
window_list = g;
window_count++;
/* Add in a toolbar
*/
g->toolbar = ro_gui_theme_create_toolbar(NULL, THEME_BROWSER_TOOLBAR);
ro_gui_theme_attach_toolbar(g->toolbar, g->window);
/* Set the window options
*/
bw->window = g;
ro_gui_window_clone_options(bw, clone);
ro_gui_prepare_navigate(g);
/* Open the window
*/
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return g;
}
/* Open the window at the top of the stack
*/
state.next = wimp_TOP;
ro_gui_window_open(g, (wimp_open*)&state);
/* Set the caret position to the URL bar
*/
if (g->toolbar && g->toolbar->display_url) {
error = xwimp_set_caret_position(
g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL, -1, -1, -1, 0);
ro_gui_url_complete_start(g);
} else
error = xwimp_set_caret_position(g->window,
wimp_ICON_WINDOW, -100, -100, 32, -1);
if (error) {
LOG(("xwimp_set_caret_position: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return g;
}
return g;
}
/**
* Close a browser window and free any related resources.
*
* \param g gui_window to destroy
*/
void gui_window_destroy(struct gui_window *g)
{
os_error *error;
assert(g);
/* remove from list */
if (g->prev)
g->prev->next = g->next;
else
window_list = g->next;
if (g->next)
g->next->prev = g->prev;
ro_gui_theme_destroy_toolbar(g->toolbar);
/* delete window */
error = xwimp_delete_window(g->window);
if (error) {
LOG(("xwimp_delete_window: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
free(g);
}
/**
* Destroy all browser windows.
*/
void ro_gui_window_quit(void)
{
while (window_list)
browser_window_destroy(window_list->bw);
}
/**
* Set the title of a browser window.
*
* \param g gui_window to update
* \param title new window title, copied
*/
void gui_window_set_title(struct gui_window *g, const char *title)
{
int scale_disp;
assert(g);
assert(title);
if (g->option.scale != 1.0) {
scale_disp = g->option.scale * 100;
if (ABS((float)scale_disp - g->option.scale * 100) >= 0.05)
snprintf(g->title, sizeof g->title, "%s (%.1f%%)", title,
g->option.scale * 100);
else
snprintf(g->title, sizeof g->title, "%s (%i%%)", title, scale_disp);
} else {
strncpy(g->title, title, sizeof g->title);
}
ro_gui_set_window_title(g->window, g->title);
}
/**
* Force a redraw of part of the contents of a browser window.
*
* \param g gui_window to redraw
* \param x0 rectangle to redraw
* \param y0 rectangle to redraw
* \param x1 rectangle to redraw
* \param y1 rectangle to redraw
*/
void gui_window_redraw(struct gui_window *g, int x0, int y0, int x1, int y1)
{
os_error *error;
assert(g);
error = xwimp_force_redraw(g->window, x0 * 2, -y1 * 2, x1 * 2, -y0 * 2);
if (error) {
LOG(("xwimp_force_redraw: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
}
/**
* Redraws the content for all windows.
*/
void ro_gui_window_redraw_all(void)
{
struct gui_window *g;
for (g = window_list; g; g = g->next)
gui_window_redraw_window(g);
}
/**
* Force a redraw of the entire contents of a browser window.
*
* \param g gui_window to redraw
*/
void gui_window_redraw_window(struct gui_window *g)
{
wimp_window_info info;
os_error *error;
assert(g);
info.w = g->window;
error = xwimp_get_window_info_header_only(&info);
if (error) {
LOG(("xwimp_get_window_info_header_only: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
error = xwimp_force_redraw(g->window, info.extent.x0, info.extent.y0,
info.extent.x1, info.extent.y1);
if (error) {
LOG(("xwimp_force_redraw: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
}
/**
* Handle a Redraw_Window_Request for a browser window.
*/
void ro_gui_window_redraw(struct gui_window *g, wimp_draw *redraw)
{
osbool more;
bool clear_background = false;
bool clear_partial = false;
float scale = 1;
struct content *c = g->bw->current_content;
int clip_x0, clip_y0, clip_x1, clip_y1, clear_x1, clear_y1;
int content_y1, content_x1;
os_error *error;
osspriteop_area *area;
osspriteop_header *header;
/* Handle no content quickly
*/
if (!c) {
ro_gui_user_redraw(redraw, true, os_COLOUR_WHITE);
return;
}
plot = ro_plotters;
ro_plot_set_scale(g->option.scale);
ro_gui_current_redraw_gui = g;
current_redraw_browser = g->bw;
/* We should clear the background, except for HTML.
*/
switch (c->type) {
case CONTENT_HTML:
break;
case CONTENT_CSS:
case CONTENT_TEXTPLAIN:
#ifdef WITH_JPEG
case CONTENT_JPEG:
#endif
clear_partial = true;
clear_background = true;
scale = g->option.scale;
break;
#ifdef WITH_SPRITE
case CONTENT_SPRITE:
area = (osspriteop_area *)c->data.sprite.data;
header = (osspriteop_header *)((char*)area + area->first);
clear_partial = (header->image) == (header->mask);
#endif
#ifdef WITH_GIF
case CONTENT_GIF:
#endif
#ifdef WITH_MNG
case CONTENT_JNG:
case CONTENT_MNG:
case CONTENT_PNG:
#endif
if (c->bitmap)
clear_partial = bitmap_get_opaque(c->bitmap);
default:
clear_background = true;
scale = g->option.scale;
break;
}
error = xwimp_redraw_window(redraw, &more);
if (error) {
LOG(("xwimp_redraw_window: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
while (more) {
ro_plot_origin_x = redraw->box.x0 - redraw->xscroll;
ro_plot_origin_y = redraw->box.y1 - redraw->yscroll;
clip_x0 = (redraw->clip.x0 - ro_plot_origin_x) / 2;
clip_y0 = (ro_plot_origin_y - redraw->clip.y1) / 2;
clip_x1 = (redraw->clip.x1 - ro_plot_origin_x) / 2;
clip_y1 = (ro_plot_origin_y - redraw->clip.y0) / 2;
clear_x1 = redraw->clip.x1 - ro_plot_origin_x;
clear_y1 = redraw->clip.y0 - ro_plot_origin_y;
if (ro_gui_current_redraw_gui->option.buffer_everything)
ro_gui_buffer_open(redraw);
if (clear_background) {
error = xcolourtrans_set_gcol(os_COLOUR_WHITE,
colourtrans_SET_BG,
os_ACTION_OVERWRITE, 0, 0);
if (error) {
LOG(("xcolourtrans_set_gcol: 0x%x: %s",
error->errnum, error->errmess));
warn_user("MiscError", error->errmess);
}
if (clear_partial) {
content_x1 = ro_plot_origin_x + c->width * 2 * scale;
content_y1 = ro_plot_origin_y - c->height * 2 * scale;
clear_x1 += ro_plot_origin_x;
clear_y1 += ro_plot_origin_y;
if (content_y1 > clear_y1) {
xos_plot(os_MOVE_TO,
ro_plot_origin_x,
content_y1);
xos_plot(os_PLOT_BG_TO | os_PLOT_RECTANGLE,
clear_x1,
clear_y1);
}
if (content_x1 < redraw->clip.x1) {
xos_plot(os_MOVE_TO,
content_x1,
ro_plot_origin_y);
xos_plot(os_PLOT_BG_TO | os_PLOT_RECTANGLE,
clear_x1,
content_y1);
}
} else {
os_clg();
}
}
content_redraw(c, 0, 0,
c->width * scale, c->height * scale,
clip_x0, clip_y0, clip_x1, clip_y1,
g->option.scale,
0xFFFFFF);
if (ro_gui_current_redraw_gui->option.buffer_everything)
ro_gui_buffer_close();
error = xwimp_get_rectangle(redraw, &more);
/* RISC OS 3.7 returns an error here if enough buffer was
claimed to cause a new dynamic area to be created. It
doesn't actually stop anything working, so we mask it out
for now until a better fix is found. This appears to be a
bug in RISC OS. */
if (error && !(ro_gui_current_redraw_gui->
option.buffer_everything &&
error->errnum == error_WIMP_GET_RECT)) {
LOG(("xwimp_get_rectangle: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
ro_gui_current_redraw_gui = NULL;
current_redraw_browser = NULL;
return;
}
}
ro_gui_current_redraw_gui = NULL;
current_redraw_browser = NULL;
}
/**
* Redraw an area of a window.
*
* \param g gui_window
* \param data content_msg_data union with filled in redraw data
*/
void gui_window_update_box(struct gui_window *g,
const union content_msg_data *data)
{
struct content *c = g->bw->current_content;
osbool more;
bool clear_background = false;
bool use_buffer;
wimp_draw update;
int clip_x0, clip_y0, clip_x1, clip_y1;
os_error *error;
/* in some cases an update can be triggered before a content has fully
* loaded, so current_content is 0 */
if (!c)
return;
update.w = g->window;
update.box.x0 = floorf(data->redraw.x * 2 * g->option.scale);
update.box.y0 = -ceilf((data->redraw.y + data->redraw.height) * 2 *
g->option.scale);
update.box.x1 = ceilf((data->redraw.x + data->redraw.width) * 2 *
g->option.scale) + 1;
update.box.y1 = -floorf(data->redraw.y * 2 * g->option.scale) + 1;
error = xwimp_update_window(&update, &more);
if (error) {
LOG(("xwimp_update_window: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
/* Set the current redraw gui_window to get options from
*/
ro_gui_current_redraw_gui = g;
current_redraw_browser = g->bw;
use_buffer = (data->redraw.full_redraw) &&
(g->option.buffer_everything || g->option.buffer_animations);
plot = ro_plotters;
ro_plot_origin_x = update.box.x0 - update.xscroll;
ro_plot_origin_y = update.box.y1 - update.yscroll;
ro_plot_set_scale(g->option.scale);
/* We should clear the background, except for HTML.
*/
if (c->type != CONTENT_HTML)
clear_background = true;
while (more) {
clip_x0 = (update.clip.x0 - ro_plot_origin_x) / 2;
clip_y0 = (ro_plot_origin_y - update.clip.y1) / 2;
clip_x1 = (update.clip.x1 - ro_plot_origin_x) / 2;
clip_y1 = (ro_plot_origin_y - update.clip.y0) / 2;
if (use_buffer)
ro_gui_buffer_open(&update);
if (data->redraw.full_redraw) {
if (clear_background) {
error = xcolourtrans_set_gcol(os_COLOUR_WHITE,
colourtrans_SET_BG,
os_ACTION_OVERWRITE, 0, 0);
if (error) {
LOG(("xcolourtrans_set_gcol: 0x%x: %s",
error->errnum,
error->errmess));
warn_user("MiscError", error->errmess);
}
os_clg();
}
content_redraw(c, 0, 0,
c->width, c->height,
clip_x0, clip_y0, clip_x1, clip_y1,
g->option.scale,
0xFFFFFF);
} else {
assert(data->redraw.object);
content_redraw(data->redraw.object,
floorf(data->redraw.object_x *
g->option.scale),
ceilf(data->redraw.object_y *
g->option.scale),
data->redraw.object_width *
g->option.scale,
data->redraw.object_height *
g->option.scale,
clip_x0, clip_y0, clip_x1, clip_y1,
g->option.scale,
0xFFFFFF);
}
if (use_buffer)
ro_gui_buffer_close();
error = xwimp_get_rectangle(&update, &more);
/* RISC OS 3.7 returns an error here if enough buffer was
claimed to cause a new dynamic area to be created. It
doesn't actually stop anything working, so we mask it out
for now until a better fix is found. This appears to be a
bug in RISC OS. */
if (error && !(use_buffer &&
error->errnum == error_WIMP_GET_RECT)) {
LOG(("xwimp_get_rectangle: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
ro_gui_current_redraw_gui = NULL;
current_redraw_browser = NULL;
return;
}
}
/* Reset the current redraw gui_window to prevent thumbnails from
retaining options
*/
ro_gui_current_redraw_gui = NULL;
current_redraw_browser = NULL;
}
/**
* Get the scroll position of a browser window.
*
* \param g gui_window
* \param sx receives x ordinate of point at top-left of window
* \param sy receives y ordinate of point at top-left of window
* \return true iff successful
*/
bool gui_window_get_scroll(struct gui_window *g, int *sx, int *sy)
{
wimp_window_state state;
os_error *error;
assert(g);
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return false;
}
else {
int toolbar_height = 0;
if (g->toolbar)
toolbar_height = ro_gui_theme_toolbar_full_height(g->toolbar);
*sx = state.xscroll / (2 * g->option.scale);
*sy = -(state.yscroll - toolbar_height) / (2 * g->option.scale);
return true;
}
}
/**
* Set the scroll position of a browser window.
*
* \param g gui_window to scroll
* \param sx point to place at top-left of window
* \param sy point to place at top-left of window
*/
void gui_window_set_scroll(struct gui_window *g, int sx, int sy)
{
wimp_window_state state;
os_error *error;
assert(g);
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
state.xscroll = sx * 2 * g->option.scale;
state.yscroll = -sy * 2 * g->option.scale;
if (g->toolbar)
state.yscroll += ro_gui_theme_toolbar_full_height(g->toolbar);
ro_gui_window_open(g, (wimp_open *) &state);
}
/**
* Scrolls the specified area of a browser window into view.
*
* \param g gui_window to scroll
* \param x0 left point to ensure visible
* \param y0 top-left point to ensure visible
* \param x1 left point to ensure visible
* \param y1 top-left point to ensure visible
*/
void gui_window_scroll_visible(struct gui_window *g, int x0, int y0, int x1, int y1)
{
wimp_window_state state;
os_error *error;
int cx0, cy0, width, height;
int padding_available;
int toolbar_height = 0;
int correction;
assert(g);
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
if (g->toolbar)
toolbar_height = ro_gui_theme_toolbar_full_height(g->toolbar);
x0 = x0 * 2 * g->option.scale;
y0 = y0 * 2 * g->option.scale;
x1 = x1 * 2 * g->option.scale;
y1 = y1 * 2 * g->option.scale;
cx0 = state.xscroll;
cy0 = -state.yscroll + toolbar_height;
width = state.visible.x1 - state.visible.x0;
height = state.visible.y1 - state.visible.y0 - toolbar_height;
/* make sure we're visible */
correction = (x1 - cx0 - width);
if (correction > 0)
cx0 += correction;
correction = (y1 - cy0 - height);
if (correction > 0)
cy0 += correction;
if (x0 < cx0)
cx0 = x0;
if (y0 < cy0)
cy0 = y0;
/* try to give a SCROLL_VISIBLE_PADDING border of space around us */
padding_available = (width - x1 + x0) / 2;
if (padding_available > 0) {
if (padding_available > SCROLL_VISIBLE_PADDING)
padding_available = SCROLL_VISIBLE_PADDING;
correction = (cx0 + width - x1);
if (correction < padding_available)
cx0 += padding_available;
correction = (x0 - cx0);
if (correction < padding_available)
cx0 -= padding_available;
}
padding_available = (height - y1 + y0) / 2;
LOG(("Padding available: %i", padding_available));
if (padding_available > 0) {
if (padding_available > SCROLL_VISIBLE_PADDING)
padding_available = SCROLL_VISIBLE_PADDING;
correction = (cy0 + height - y1);
if (correction < padding_available)
cy0 += padding_available;
correction = (y0 - cy0);
if (correction < padding_available)
cy0 -= padding_available;
}
state.xscroll = cx0;
state.yscroll = -cy0 + toolbar_height;
ro_gui_window_open(g, (wimp_open *)&state);
}
/**
* Find the current width of a browser window.
*
* \param g gui_window to measure
* \return width of window
*/
int gui_window_get_width(struct gui_window *g)
{
wimp_window_state state;
os_error *error;
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return 800;
}
return (state.visible.x1 - state.visible.x0) / 2 / g->option.scale;
}
/**
* Find the current height of a browser window.
*
* \param g gui_window to measure
* \return height of window
*/
int gui_window_get_height(struct gui_window *g)
{
wimp_window_state state;
os_error *error;
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return 800;
}
return (state.visible.y1 - state.visible.y0 - (g->toolbar ?
ro_gui_theme_toolbar_full_height(g->toolbar) : 0)) /
2 / g->option.scale;
}
/**
* Set the extent of the inside of a browser window.
*
* \param g gui_window to resize
* \param width new extent
* \param height new extent
*/
void gui_window_set_extent(struct gui_window *g, int width, int height)
{
os_box extent = { 0, 0, 0, 0 };
wimp_window_state state;
int toolbar_height = 0;
os_error *error;
width *= 2 * g->option.scale;
height *= 2 * g->option.scale;
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
/* account for toolbar height, if present */
if (g->toolbar)
toolbar_height = ro_gui_theme_toolbar_full_height(g->toolbar);
if (width < state.visible.x1 - state.visible.x0)
width = state.visible.x1 - state.visible.x0;
if (height < state.visible.y1 - state.visible.y0 - toolbar_height)
height = state.visible.y1 - state.visible.y0 - toolbar_height;
extent.y0 = -height;
extent.x1 = width;
extent.y1 = toolbar_height;
error = xwimp_set_extent(g->window, &extent);
if (error) {
LOG(("xwimp_set_extent: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
error = xwimp_open_window((wimp_open *) &state);
if (error) {
LOG(("xwimp_open_window: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
}
/**
* Set the status bar of a browser window.
*
* \param g gui_window to update
* \param text new status text
*/
void gui_window_set_status(struct gui_window *g, const char *text)
{
if ((!g->toolbar) || (!g->toolbar->status_handle))
return;
ro_gui_set_icon_string(g->toolbar->status_handle,
ICON_STATUS_TEXT, text);
}
/**
* Set the contents of a window's address bar.
*
* \param g gui_window to update
* \param url new url for address bar
*/
void gui_window_set_url(struct gui_window *g, const char *url)
{
wimp_caret caret;
os_error *error;
char *toolbar_url;
if (!g->toolbar)
return;
ro_gui_set_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL, url);
/* if the caret is in the address bar, move it to the end */
error = xwimp_get_caret_position(&caret);
if (error) {
LOG(("xwimp_get_caret_position: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
if (!(caret.w == g->toolbar->toolbar_handle &&
caret.i == ICON_TOOLBAR_URL))
return;
toolbar_url = ro_gui_get_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL);
error = xwimp_set_caret_position(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL, 0, 0, -1, (int)strlen(toolbar_url));
if (error) {
LOG(("xwimp_set_caret_position: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
ro_gui_url_complete_start(g);
}
/**
* Launch a new url in the given window.
*
* \param g gui_window to update
* \param url url to be launched
*/
void ro_gui_window_launch_url(struct gui_window *g, const char *url)
{
url_func_result res;
char *url_norm;
ro_gui_url_complete_close(NULL, 0);
res = url_normalize(url, &url_norm);
if (res == URL_FUNC_OK) {
gui_window_set_url(g, url_norm);
browser_window_go(g->bw, url_norm, 0);
global_history_add_recent(url_norm);
free(url_norm);
}
}
/**
* Forces all windows to be set to the current theme
*
* /param g the gui window to update
*/
void ro_gui_window_update_theme(void) {
int height;
struct gui_window *g;
for (g = window_list; g; g = g->next) {
if (g->toolbar) {
height = ro_gui_theme_toolbar_height(g->toolbar);
if (g->toolbar->editor)
if (!ro_gui_theme_update_toolbar(NULL, g->toolbar->editor))
g->toolbar->editor = NULL;
if (!ro_gui_theme_update_toolbar(NULL, g->toolbar)) {
ro_gui_theme_destroy_toolbar(g->toolbar);
g->toolbar = NULL;
if (height != 0)
ro_gui_window_update_dimensions(g, height);
} else {
if (height != (ro_gui_theme_toolbar_height(g->toolbar)))
ro_gui_window_update_dimensions(g, height -
ro_gui_theme_toolbar_height(g->toolbar));
}
ro_gui_theme_toolbar_editor_sync(g->toolbar);
}
}
if ((hotlist_tree) && (hotlist_tree->toolbar)) {
if (hotlist_tree->toolbar->editor)
if (!ro_gui_theme_update_toolbar(NULL, hotlist_tree->toolbar->editor))
hotlist_tree->toolbar->editor = NULL;
if (!ro_gui_theme_update_toolbar(NULL, hotlist_tree->toolbar)) {
ro_gui_theme_destroy_toolbar(hotlist_tree->toolbar);
hotlist_tree->toolbar = NULL;
}
ro_gui_theme_toolbar_editor_sync(hotlist_tree->toolbar);
ro_gui_theme_attach_toolbar(hotlist_tree->toolbar,
(wimp_w)hotlist_tree->handle);
xwimp_force_redraw((wimp_w)hotlist_tree->handle,
0, -16384, 16384, 16384);
}
if ((global_history_tree) && (global_history_tree->toolbar)) {
if (global_history_tree->toolbar->editor)
if (!ro_gui_theme_update_toolbar(NULL,
global_history_tree->toolbar->editor))
global_history_tree->toolbar->editor = NULL;
if (!ro_gui_theme_update_toolbar(NULL, global_history_tree->toolbar)) {
ro_gui_theme_destroy_toolbar(global_history_tree->toolbar);
global_history_tree->toolbar = NULL;
}
ro_gui_theme_toolbar_editor_sync(global_history_tree->toolbar);
ro_gui_theme_attach_toolbar(global_history_tree->toolbar,
(wimp_w)global_history_tree->handle);
xwimp_force_redraw((wimp_w)global_history_tree->handle,
0, -16384, 16384, 16384);
}
}
/**
* Forces the windows extent to be updated
*
* /param g the gui window to update
* /param yscroll an amount to scroll the vertical scroll bar by
*/
void ro_gui_window_update_dimensions(struct gui_window *g, int yscroll) {
os_error *error;
wimp_window_state state;
if (!g) return;
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
state.yscroll -= yscroll;
g->old_height = -1;
ro_gui_window_open(g, (wimp_open *)&state);
/* gui_window_redraw_window(g); */
}
/**
* Open a window using the given wimp_open, handling toolbars and resizing.
*/
void ro_gui_window_open(struct gui_window *g, wimp_open *open)
{
int width = open->visible.x1 - open->visible.x0;
int height = open->visible.y1 - open->visible.y0;
int toolbar_height = 0;
struct content *content;
wimp_window_state state;
bool toggle_hack = false;
int screen_height, screen_width;
os_error *error;
int key_down = 0;
int inset = 0;
content = g->bw->current_content;
/* check for toggle to full size so we can force to full height for short contents */
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
if ((state.flags & wimp_WINDOW_TOGGLED) && // bit 19
(state.flags & wimp_WINDOW_BOUNDED_ONCE) && // bit 21
!(state.flags & wimp_WINDOW_FULL_SIZE)) { // not bit 18
ro_gui_screen_size(&screen_width, &screen_height);
/* i can see no way of easily discovering if we were the result of a shift-
* toggle as wimp_WINDOW_PARTIAL_SIZE does not seem to be what we need. As
* such we do the really horrible thing of testing for Shift directly and
* decreasing the value accordingly. Yuck. */
xosbyte1(osbyte_SCAN_KEYBOARD, 0 ^ 0x80, 0, &key_down);
if (key_down != 0)
inset = 160 + ro_get_hscroll_height(0);
if ((content->height * 2 * g->option.scale) < screen_height - inset) {
open->visible.y0 = inset;
open->visible.y1 = screen_height;
height = screen_height - inset;
toggle_hack = true;
}
}
/* account for toolbar height, if present */
if (g->toolbar)
toolbar_height = ro_gui_theme_toolbar_full_height(g->toolbar);
height -= toolbar_height;
/* The height should be no less than the content height
*/
if (content && height < content->height * 2 * g->option.scale)
height = content->height * 2 * g->option.scale;
/* change extent if necessary */
if (g->old_width != width || g->old_height != height) {
if (content && g->old_width != width) {
g->reformat_pending = true;
gui_reformat_pending = true;
}
g->old_width = width;
g->old_height = height;
if (content && width < content->width * 2 * g->option.scale)
width = content->width * 2 * g->option.scale;
os_box extent = { 0, -height, width, toolbar_height };
error = xwimp_set_extent(g->window, &extent);
if (error) {
LOG(("xwimp_set_extent: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
}
/* first resize stops any flickering by making the URL window on top */
ro_gui_url_complete_resize(g, open);
error = xwimp_open_window(open);
if (error) {
LOG(("xwimp_open_window: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
/* update extent to actual size if toggled */
if (toggle_hack) {
width = open->visible.x1 - open->visible.x0;
height = open->visible.y1 - open->visible.y0 - toolbar_height;
if (content && height < content->height * 2 * g->option.scale)
height = content->height * 2 * g->option.scale;
{
os_box extent = { 0, -height, width, toolbar_height };
error = xwimp_set_extent(g->window, &extent);
if (error) {
LOG(("xwimp_set_extent: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
}
g->old_width = width;
g->old_height = height;
}
if (g->toolbar) {
ro_gui_theme_process_toolbar(g->toolbar, -1);
/* second resize updates to the new URL bar width */
ro_gui_url_complete_resize(g, open);
}
}
/**
* Animate the "throbbers" of all browser windows.
*/
void ro_gui_throb(void)
{
os_t t;
struct gui_window *g;
char throb_buf[12];
xos_read_monotonic_time(&t);
for (g = window_list; g; g = g->next) {
if (!g->bw->throbbing || !g->toolbar || !g->toolbar->display_throbber ||
!g->toolbar->descriptor ||!g->toolbar->descriptor->theme ||
(t < g->throbtime + 10))
continue;
g->throbtime = t;
g->throbber++;
if (g->toolbar->descriptor->theme->throbber_frames < g->throbber)
g->throbber = 1;
sprintf(throb_buf, "throbber%i", g->throbber);
ro_gui_set_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_THROBBER, throb_buf);
if (g->toolbar->descriptor->throbber_redraw)
ro_gui_force_redraw_icon(g->toolbar->toolbar_handle,
ICON_TOOLBAR_THROBBER);
}
}
/**
* Convert a RISC OS window handle to a gui_window.
*
* \param w RISC OS window handle
* \return pointer to a structure if found, 0 otherwise
*/
struct gui_window *ro_gui_window_lookup(wimp_w window)
{
struct gui_window *g;
for (g = window_list; g; g = g->next)
if (g->window == window)
return g;
return 0;
}
/**
* Convert a toolbar RISC OS window handle to a gui_window.
*
* \param w RISC OS window handle of a toolbar
* \return pointer to a structure if found, 0 otherwise
*/
struct gui_window *ro_gui_toolbar_lookup(wimp_w window)
{
struct gui_window *g;
for (g = window_list; g; g = g->next) {
if ((g->toolbar) && ((g->toolbar->toolbar_handle == window) ||
((g->toolbar->editor) &&
(g->toolbar->editor->toolbar_handle == window))))
return g;
}
return 0;
}
/**
* Convert a status bar RISC OS window handle to a gui_window.
*
* \param w RISC OS window handle of a status bar
* \return pointer to a structure if found, 0 otherwise
*/
struct gui_window *ro_gui_status_lookup(wimp_w window)
{
struct gui_window *g;
for (g = window_list; g; g = g->next)
if (g->toolbar && g->toolbar->status_handle == window)
return g;
return 0;
}
/**
* Handle pointer movements in a browser window.
*
* \param g browser window that the pointer is in
* \param pointer new mouse position
*/
void ro_gui_window_mouse_at(struct gui_window *g, wimp_pointer *pointer)
{
int x, y;
wimp_window_state state;
os_error *error;
assert(g);
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
x = window_x_units(pointer->pos.x, &state) / 2 / g->option.scale;
y = -window_y_units(pointer->pos.y, &state) / 2 / g->option.scale;
browser_window_mouse_track(g->bw, ro_gui_mouse_drag_state(pointer->buttons), x, y);
}
/**
* Process Mouse_Click events in a toolbar.
*/
bool ro_gui_toolbar_click(wimp_pointer *pointer)
{
struct gui_window *g = ro_gui_toolbar_lookup(pointer->w);
/* toolbars in the options window have no gui_window */
if (!g)
return true;
/* try to close url-completion */
ro_gui_url_complete_close(g, pointer->i);
/* Handle Menu clicks
*/
if (pointer->buttons == wimp_CLICK_MENU) {
ro_gui_menu_create(browser_toolbar_menu, pointer->pos.x,
pointer->pos.y, g->window);
return true;
}
/* Handle toolbar edits
*/
if ((g->toolbar->editor) && (pointer->i < ICON_TOOLBAR_URL)) {
ro_gui_theme_toolbar_editor_click(g->toolbar, pointer);
return true;
}
/* Handle the buttons appropriately
*/
switch (pointer->i) {
case ICON_TOOLBAR_BACK:
ro_gui_menu_handle_action(g->window,
BROWSER_NAVIGATE_BACK, true);
break;
case ICON_TOOLBAR_FORWARD:
ro_gui_menu_handle_action(g->window,
BROWSER_NAVIGATE_FORWARD, true);
break;
case ICON_TOOLBAR_STOP:
ro_gui_menu_handle_action(g->window,
BROWSER_NAVIGATE_STOP, true);
break;
case ICON_TOOLBAR_RELOAD:
if (pointer->buttons == wimp_CLICK_SELECT)
ro_gui_menu_handle_action(g->window,
BROWSER_NAVIGATE_RELOAD, true);
else if (pointer->buttons == wimp_CLICK_ADJUST)
ro_gui_menu_handle_action(g->window,
BROWSER_NAVIGATE_RELOAD_ALL, true);
break;
case ICON_TOOLBAR_HISTORY:
if (pointer->buttons == wimp_CLICK_SELECT)
ro_gui_menu_handle_action(g->window,
HISTORY_SHOW_LOCAL, true);
else
ro_gui_menu_handle_action(g->window,
HISTORY_SHOW_GLOBAL, true);
break;
case ICON_TOOLBAR_HOME:
ro_gui_menu_handle_action(g->window,
BROWSER_NAVIGATE_HOME, true);
break;
#ifdef WITH_SEARCH
case ICON_TOOLBAR_SEARCH:
ro_gui_menu_handle_action(g->window,
BROWSER_FIND_TEXT, true);
break;
#endif
case ICON_TOOLBAR_SCALE:
ro_gui_menu_handle_action(g->window,
BROWSER_SCALE_VIEW, true);
break;
case ICON_TOOLBAR_BOOKMARK:
if (pointer->buttons == wimp_CLICK_ADJUST)
ro_gui_menu_handle_action(g->window,
HOTLIST_ADD_URL, true);
else
ro_gui_menu_handle_action(g->window,
HOTLIST_SHOW, true);
break;
case ICON_TOOLBAR_SAVE:
if (pointer->buttons == wimp_CLICK_ADJUST)
ro_gui_menu_handle_action(g->window,
BROWSER_SAVE_COMPLETE, true);
else
ro_gui_menu_handle_action(g->window,
BROWSER_SAVE, true);
break;
case ICON_TOOLBAR_PRINT:
ro_gui_menu_handle_action(g->window,
BROWSER_PRINT, true);
break;
case ICON_TOOLBAR_URL:
if (pointer->buttons & (wimp_DRAG_SELECT | wimp_DRAG_ADJUST)) {
if (g->bw->current_content) {
gui_save_type save_type;
if (ro_gui_shift_pressed())
save_type = GUI_SAVE_LINK_URL;
else
save_type = GUI_SAVE_LINK_TEXT;
gui_drag_save_object(save_type, g->bw->current_content, g);
}
}
else
ro_gui_url_complete_start(g);
break;
case ICON_TOOLBAR_SUGGEST:
ro_gui_popup_menu(url_suggest_menu,
g->toolbar->toolbar_handle,
ICON_TOOLBAR_SUGGEST);
break;
}
return true;
}
/**
* Handle Mouse_Click events in the status bar.
*
* \param g browser window that owns the status bar
* \param pointer details of mouse click
*/
bool ro_gui_status_click(wimp_pointer *pointer)
{
struct gui_window *g = ro_gui_status_lookup(pointer->w);
wimp_drag drag;
os_error *error;
assert(g);
switch (pointer->i) {
case ICON_STATUS_RESIZE:
gui_current_drag_type = GUI_DRAG_STATUS_RESIZE;
drag.w = pointer->w;
drag.type = wimp_DRAG_SYSTEM_SIZE;
drag.initial.x0 = pointer->pos.x;
drag.initial.x1 = pointer->pos.x;
drag.initial.y0 = pointer->pos.y;
drag.initial.y1 = pointer->pos.y;
error = xwimp_drag_box(&drag);
if (error) {
LOG(("xwimp_drag_box: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
break;
}
return true;
}
/**
* Handle Mouse_Click events in a browser window.
*
* \param g browser window
* \param pointer details of mouse click
*/
void ro_gui_window_click(struct gui_window *g, wimp_pointer *pointer)
{
wimp_window_state state;
os_error *error;
int x, y;
assert(g);
/* try to close url-completion */
ro_gui_url_complete_close(g, pointer->i);
state.w = pointer->w;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s", error->errnum,
error->errmess));
warn_user("WimpError", error->errmess);
return;
}
x = window_x_units(pointer->pos.x, &state) / 2 / g->option.scale;
y = -window_y_units(pointer->pos.y, &state) / 2 / g->option.scale;
/* set input focus */
if (pointer->buttons == wimp_CLICK_SELECT ||
pointer->buttons == wimp_CLICK_ADJUST) {
error = xwimp_set_caret_position(state.w, -1,
-100, -100, 32, -1);
if (error) {
LOG(("xwimp_set_caret_position: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
}
if (pointer->buttons == wimp_CLICK_MENU)
ro_gui_menu_create(browser_menu, pointer->pos.x,
pointer->pos.y, pointer->w);
else
browser_window_mouse_click(g->bw,
ro_gui_mouse_click_state(pointer->buttons), x, y);
}
/**
* Update the interface to reflect start of page loading.
*
* \param g window with start of load
*/
void gui_window_start_throbber(struct gui_window *g)
{
ro_gui_menu_objects_moved();
ro_gui_prepare_navigate(g);
xos_read_monotonic_time(&g->throbtime);
g->throbber = 0;
}
/**
* Update the interface to reflect page loading stopped.
*
* \param g window with start of load
*/
void gui_window_stop_throbber(struct gui_window *g)
{
char throb_buf[12];
ro_gui_prepare_navigate(g);
g->throbber = 0;
if (g->toolbar) {
strcpy(throb_buf, "throbber0");
ro_gui_set_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_THROBBER, throb_buf);
if ((g->toolbar->descriptor) && (g->toolbar->descriptor->throbber_redraw))
ro_gui_force_redraw_icon(g->toolbar->toolbar_handle,
ICON_TOOLBAR_THROBBER);
}
}
/**
* Place the caret in a browser window.
*
* \param g window with caret
* \param x coordinates of caret
* \param y coordinates of caret
* \param height height of caret
*/
void gui_window_place_caret(struct gui_window *g, int x, int y, int height)
{
os_error *error;
error = xwimp_set_caret_position(g->window, -1,
x * 2 * g->option.scale,
-(y + height) * 2 * g->option.scale,
height * 2 * g->option.scale, -1);
if (error) {
LOG(("xwimp_set_caret_position: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
}
/**
* Remove the caret, if present.
*
* \param g window with caret
*/
void gui_window_remove_caret(struct gui_window *g)
{
wimp_caret caret;
os_error *error;
error = xwimp_get_caret_position(&caret);
if (error) {
LOG(("xwimp_get_caret_position: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
if (caret.w != g->window)
/* we don't have the caret: do nothing */
return;
/* hide caret, but keep input focus */
error = xwimp_set_caret_position(g->window, -1,
-100, -100, 32, -1);
if (error) {
LOG(("xwimp_set_caret_position: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
}
/**
* Process Key_Pressed events in a browser window.
*/
bool ro_gui_window_keypress(struct gui_window *g, int key, bool toolbar)
{
struct content *content = g->bw->current_content;
wimp_window_state state;
int y, t_alphabet;
char *toolbar_url;
os_error *error;
wimp_pointer pointer;
float old_scale;
static int *ucstable = NULL;
static int alphabet = 0;
error = xwimp_get_pointer_info(&pointer);
if (error) {
LOG(("xwimp_get_pointer_info: 0x%x: %s\n",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return false;
}
/* In order to make sensible use of the 0x80->0xFF ranges specified
* in the RISC OS 8bit alphabets, we must do the following:
*
* + Read the currently selected alphabet
* + Acquire a pointer to the UCS conversion table for this alphabet:
* + Try using ServiceInternational 8 to get the table
* + If that fails, use our internal table (see ucstables.c)
* + If the alphabet is not UTF8 and the conversion table exists:
* + Lookup UCS code in the conversion table
* + If code is -1 (i.e. undefined):
* + Use codepoint 0xFFFD instead
* + If the alphabet is UTF8, we must buffer input, thus:
* + If the keycode is < 0x80:
* + Handle it directly
* + If the keycode is a UTF8 sequence start:
* + Initialise the buffer appropriately
* + Otherwise:
* + OR in relevant bits from keycode to buffer
* + If we've received an entire UTF8 character:
* + Handle UCS code
* + Otherwise:
* + Simply handle the keycode directly, as there's no easy way
* of performing the mapping from keycode -> UCS4 codepoint.
*/
error = xosbyte1(osbyte_ALPHABET_NUMBER, 127, 0, &t_alphabet);
if (error) {
LOG(("failed reading alphabet: 0x%x: %s",
error->errnum, error->errmess));
/* prevent any corruption of ucstable */
t_alphabet = alphabet;
}
if (t_alphabet != alphabet) {
osbool unclaimed;
/* Alphabet has changed, so read UCS table location */
alphabet = t_alphabet;
error = xserviceinternational_get_ucs_conversion_table(
alphabet, &unclaimed,
(void**)&ucstable);
if (error) {
LOG(("failed reading UCS conversion table: 0x%x: %s",
error->errnum, error->errmess));
/* try using our own table instead */
ucstable = ucstable_from_alphabet(alphabet);
}
if (unclaimed)
/* Service wasn't claimed so use our own ucstable */
ucstable = ucstable_from_alphabet(alphabet);
}
/* First send the key to the browser window, eg. form fields. */
if (!toolbar) {
wchar_t c = (wchar_t)key;
static wchar_t wc = 0; /* buffer for UTF8 alphabet */
static int shift = 0;
bool ctrl_key = true;
/* Munge cursor keys into unused control chars */
/* We can't map onto 1->26 (reserved for ctrl+<qwerty>
That leaves 27->31 and 128->159 */
switch (key) {
case wimp_KEY_TAB: c = 9; break;
case wimp_KEY_SHIFT | wimp_KEY_TAB: c = 11; break;
/* cursor movement keys */
case wimp_KEY_HOME:
case wimp_KEY_CONTROL | wimp_KEY_LEFT:
c = KEY_LINE_START; break;
break;
case wimp_KEY_END:
if (os_version >= RISCOS5)
c = KEY_LINE_END;
else
c = KEY_DELETE_RIGHT;
break;
case wimp_KEY_CONTROL | wimp_KEY_RIGHT: c = KEY_LINE_END; break;
case wimp_KEY_CONTROL | wimp_KEY_UP: c = KEY_TEXT_START; break;
case wimp_KEY_CONTROL | wimp_KEY_DOWN: c = KEY_TEXT_END; break;
case wimp_KEY_SHIFT | wimp_KEY_LEFT: c = KEY_WORD_LEFT ; break;
case wimp_KEY_SHIFT | wimp_KEY_RIGHT: c = KEY_WORD_RIGHT; break;
case wimp_KEY_SHIFT | wimp_KEY_UP: c = KEY_PAGE_UP; break;
case wimp_KEY_SHIFT | wimp_KEY_DOWN: c = KEY_PAGE_DOWN; break;
case wimp_KEY_LEFT: c = KEY_LEFT; break;
case wimp_KEY_RIGHT: c = KEY_RIGHT; break;
case wimp_KEY_UP: c = KEY_UP; break;
case wimp_KEY_DOWN: c = KEY_DOWN; break;
/* editing */
case wimp_KEY_CONTROL | wimp_KEY_END:
c = KEY_DELETE_LINE_END;
break;
case wimp_KEY_DELETE:
if (ro_gui_ctrl_pressed())
c = KEY_DELETE_LINE_START;
else if (os_version < RISCOS5)
c = KEY_DELETE_LEFT;
break;
default:
ctrl_key = false;
break;
}
if (c < 256) {
if (ctrl_key)
/* do nothing, these are our control chars */;
else if (alphabet != 111 /* UTF8 */ &&
ucstable != NULL) {
/* defined in this alphabet? */
if (ucstable[c] == -1)
return true;
/* read UCS4 value out of table */
c = ucstable[c];
}
else if (alphabet == 111 /* UTF8 */) {
if ((c & 0x80) == 0x00 ||
(c & 0xC0) == 0xC0) {
/* UTF8 start sequence */
if ((c & 0xE0) == 0xC0) {
wc = ((c & 0x1F) << 6);
shift = 1;
return true;
}
else if ((c & 0xF0) == 0xE0) {
wc = ((c & 0x0F) << 12);
shift = 2;
return true;
}
else if ((c & 0xF8) == 0xF0) {
wc = ((c & 0x07) << 18);
shift = 3;
return true;
}
/* These next two have been removed
* from RFC3629, but there's no
* guarantee that RISC OS won't
* generate a UCS4 value outside the
* UTF16 plane, so we handle them
* anyway. */
else if ((c & 0xFC) == 0xF8) {
wc = ((c & 0x03) << 24);
shift = 4;
}
else if ((c & 0xFE) == 0xFC) {
wc = ((c & 0x01) << 30);
shift = 5;
}
else if (c >= 0x80) {
/* If this ever happens,
* RISC OS' UTF8 keyboard
* drivers are broken */
LOG(("unexpected UTF8 start"
" byte %x (ignoring)",
c));
return true;
}
/* Anything else is ASCII, so just
* handle it directly. */
}
else {
if ((c & 0xC0) != 0x80) {
/* If this ever happens,
* RISC OS' UTF8 keyboard
* drivers are broken */
LOG(("unexpected keycode: "
"%x (ignoring)", c));
return true;
}
/* Continuation of UTF8 character */
wc |= ((c & 0x3F) << (6 * --shift));
if (shift > 0)
/* partial character */
return true;
else
/* got entire character, so
* fetch from buffer and
* handle it */
c = wc;
}
}
if (browser_window_key_press(g->bw, c))
return true;
}
}
switch (key) {
case wimp_KEY_F1: /* Help. */
return ro_gui_menu_handle_action(g->window,
HELP_OPEN_CONTENTS, false);
case wimp_KEY_CONTROL + wimp_KEY_F1:
return ro_gui_menu_handle_action(g->window,
BROWSER_PAGE_INFO, false);
case wimp_KEY_F2:
if (!g->toolbar)
return false;
ro_gui_url_complete_close(NULL, 0);
ro_gui_set_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL, "www.");
xwimp_set_caret_position(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL, 0, 0, -1, 4);
ro_gui_url_complete_start(g);
ro_gui_url_complete_keypress(g, wimp_KEY_DOWN);
return true;
case wimp_KEY_CONTROL + wimp_KEY_F2: /* Close window. */
ro_gui_url_complete_close(NULL, 0);
browser_window_destroy(g->bw);
return true;
case wimp_KEY_F3:
return ro_gui_menu_handle_action(g->window,
BROWSER_SAVE, false);
case wimp_KEY_CONTROL + wimp_KEY_F3:
return ro_gui_menu_handle_action(g->window,
BROWSER_EXPORT_TEXT, false);
case wimp_KEY_SHIFT + wimp_KEY_F3:
return ro_gui_menu_handle_action(g->window,
BROWSER_SAVE_COMPLETE, false);
case wimp_KEY_CONTROL + wimp_KEY_SHIFT + wimp_KEY_F3:
return ro_gui_menu_handle_action(g->window,
BROWSER_EXPORT_DRAW, false);
#ifdef WITH_SEARCH
case wimp_KEY_F4: /* Search */
return ro_gui_menu_handle_action(g->window,
BROWSER_FIND_TEXT, false);
#endif
case wimp_KEY_F5: /* Reload */
return ro_gui_menu_handle_action(g->window,
BROWSER_NAVIGATE_RELOAD, false);
case wimp_KEY_CONTROL + wimp_KEY_F5: /* Full reload */
return ro_gui_menu_handle_action(g->window,
BROWSER_NAVIGATE_RELOAD_ALL, false);
case wimp_KEY_F6: /* Hotlist */
return ro_gui_menu_handle_action(g->window,
HOTLIST_SHOW, false);
case wimp_KEY_F7: /* Show local history */
return ro_gui_menu_handle_action(g->window,
HISTORY_SHOW_LOCAL, false);
case wimp_KEY_CONTROL + wimp_KEY_F7: /* Show global history */
return ro_gui_menu_handle_action(g->window,
HISTORY_SHOW_GLOBAL, false);
case wimp_KEY_F8: /* View source */
ro_gui_view_source(content);
return true;
case wimp_KEY_F9: /* Dump content for debugging. */
switch (content->type) {
case CONTENT_HTML:
box_dump(content->data.html.layout, 0);
break;
case CONTENT_CSS:
css_dump_stylesheet(content->data.css.css);
break;
default:
break;
}
return true;
case wimp_KEY_CONTROL + wimp_KEY_SHIFT + wimp_KEY_F9:
talloc_report_full(0, stderr);
return true;
case wimp_KEY_F11: /* Zoom */
return ro_gui_menu_handle_action(g->window,
BROWSER_SCALE_VIEW, false);
case wimp_KEY_SHIFT + wimp_KEY_F11: /* Toggle display of box outlines. */
html_redraw_debug = !html_redraw_debug;
gui_window_redraw_window(g);
return true;
case wimp_KEY_RETURN:
if (!toolbar)
break;
toolbar_url = ro_gui_get_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL);
ro_gui_window_launch_url(g, toolbar_url);
return true;
case wimp_KEY_ESCAPE:
if (ro_gui_url_complete_close(NULL, 0)) {
ro_gui_url_complete_start(g);
return true;
}
return ro_gui_menu_handle_action(g->window,
BROWSER_NAVIGATE_STOP, false);
case 14: /* CTRL+N */
return ro_gui_menu_handle_action(g->window,
BROWSER_NEW_WINDOW, false);
case 17: /* CTRL+Q (Zoom out) */
case 23: /* CTRL+W (Zoom in) */
if (!content)
break;
old_scale = g->option.scale;
if (key == 17) {
for (int i = SCALE_SNAP_TO_SIZE - 1; i >= 0; i--)
if (scale_snap_to[i] < old_scale) {
g->option.scale = scale_snap_to[i];
break;
}
} else {
for (unsigned int i = 0; i < SCALE_SNAP_TO_SIZE; i++)
if (scale_snap_to[i] > old_scale) {
g->option.scale = scale_snap_to[i];
break;
}
}
if (g->option.scale < scale_snap_to[0])
g->option.scale = scale_snap_to[0];
if (g->option.scale > scale_snap_to[SCALE_SNAP_TO_SIZE - 1])
g->option.scale =
scale_snap_to[SCALE_SNAP_TO_SIZE - 1];
if (old_scale != g->option.scale) {
g->reformat_pending = true;
if ((content) && (content->type != CONTENT_HTML))
browser_window_update(g->bw, false);
gui_reformat_pending = true;
}
return true;
#ifdef WITH_PRINT
case wimp_KEY_PRINT:
return ro_gui_menu_handle_action(g->window,
BROWSER_PRINT, false);
#endif
case wimp_KEY_UP:
case wimp_KEY_DOWN:
case wimp_KEY_PAGE_UP:
case wimp_KEY_PAGE_DOWN:
case wimp_KEY_CONTROL | wimp_KEY_UP:
case wimp_KEY_CONTROL | wimp_KEY_DOWN:
if (toolbar)
return ro_gui_url_complete_keypress(g, key);
break;
default:
if (toolbar)
return ro_gui_url_complete_keypress(g, key);
return false;
}
state.w = g->window;
wimp_get_window_state(&state);
y = state.visible.y1 - state.visible.y0 - 32;
if (g->toolbar)
y -= ro_gui_theme_toolbar_full_height(g->toolbar);
switch (key) {
case wimp_KEY_UP:
state.yscroll += 32;
break;
case wimp_KEY_DOWN:
state.yscroll -= 32;
break;
case wimp_KEY_PAGE_UP:
state.yscroll += y;
break;
case wimp_KEY_PAGE_DOWN:
state.yscroll -= y;
break;
case wimp_KEY_CONTROL | wimp_KEY_UP:
state.yscroll = 1000;
break;
case wimp_KEY_CONTROL | wimp_KEY_DOWN:
state.yscroll = -0x10000000;
break;
}
wimp_open_window((wimp_open *) &state);
return true;
}
/**
* Process Scroll_Request events.
*/
void ro_gui_scroll_request(wimp_scroll *scroll)
{
int x, y;
struct gui_window *g = ro_gui_window_lookup(scroll->w);
if (!g)
return;
x = scroll->visible.x1 - scroll->visible.x0 - 32;
y = scroll->visible.y1 - scroll->visible.y0 - 32;
if (g->toolbar)
y -= ro_gui_theme_toolbar_full_height(g->toolbar);
switch (scroll->xmin) {
case wimp_SCROLL_PAGE_LEFT:
scroll->xscroll -= x;
break;
case wimp_SCROLL_COLUMN_LEFT:
scroll->xscroll -= 32;
break;
case wimp_SCROLL_COLUMN_RIGHT:
scroll->xscroll += 32;
break;
case wimp_SCROLL_PAGE_RIGHT:
scroll->xscroll += x;
break;
default:
break;
}
switch (scroll->ymin) {
case wimp_SCROLL_PAGE_UP:
scroll->yscroll += y;
break;
case wimp_SCROLL_LINE_UP:
scroll->yscroll += 32;
break;
case wimp_SCROLL_LINE_DOWN:
scroll->yscroll -= 32;
break;
case wimp_SCROLL_PAGE_DOWN:
scroll->yscroll -= y;
break;
default:
break;
}
wimp_open_window((wimp_open *) scroll);
}
/**
* Convert x from screen to window coordinates.
*
* \param x x coordinate / os units
* \param state window state
* \return x coordinate in window / os units
*/
//#define window_x_units(x, state) (x - (state->visible.x0 - state->xscroll))
int window_x_units(int x, wimp_window_state *state) {
return x - (state->visible.x0 - state->xscroll);
}
/**
* Convert y from screen to window coordinates.
*
* \param y y coordinate / os units
* \param state window state
* \return y coordinate in window / os units
*/
//#define window_y_units(y, state) (y - (state->visible.y1 - state->yscroll))
int window_y_units(int y, wimp_window_state *state) {
return y - (state->visible.y1 - state->yscroll);
}
/**
* Convert x,y window co-ordinates into screen co-ordinates.
*
* \param g gui window
* \param x x ordinate
* \param y y ordinate
* \param pos receives position in screen co-ordinatates
* \return true iff conversion successful
*/
bool window_screen_pos(struct gui_window *g, int x, int y, os_coord *pos)
{
wimp_window_state state;
os_error *error;
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x:%s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return false;
}
pos->x = state.visible.x0 + ((x * 2 * g->option.scale) - state.xscroll);
pos->y = state.visible.y1 + ((-y * 2 * g->option.scale) - state.yscroll);
return true;
}
/**
* Handle Message_DataLoad (file dragged in) for a window.
*
* \param g window
* \param message Message_DataLoad block
* \return true if the load was processed
*
* If the file was dragged into a form file input, it is used as the value.
*/
bool ro_gui_window_dataload(struct gui_window *g, wimp_message *message)
{
int box_x = 0, box_y = 0;
int x, y;
struct box *box;
struct box *file_box = 0;
struct box *text_box = 0;
struct browser_window *bw = g->bw;
struct content *content;
wimp_window_state state;
os_error *error;
/* HTML content only. */
if (!bw->current_content || bw->current_content->type != CONTENT_HTML)
return false;
/* Ignore directories etc. */
if (0x1000 <= message->data.data_xfer.file_type)
return false;
/* Search for a file input or text area at the drop point. */
state.w = message->data.data_xfer.w;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s\n",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return false;
}
x = window_x_units(message->data.data_xfer.pos.x, &state) / 2 /
g->option.scale;
y = -window_y_units(message->data.data_xfer.pos.y, &state) / 2 /
g->option.scale;
content = bw->current_content;
box = content->data.html.layout;
while ((box = box_at_point(box, x, y, &box_x, &box_y, &content))) {
if (box->style &&
box->style->visibility == CSS_VISIBILITY_HIDDEN)
continue;
if (box->gadget) {
switch (box->gadget->type) {
case GADGET_FILE:
file_box = box;
break;
case GADGET_TEXTBOX:
case GADGET_TEXTAREA:
case GADGET_PASSWORD:
text_box = box;
break;
default: /* appease compiler */
break;
}
}
}
if (!file_box && !text_box)
return false;
if (file_box) {
utf8_convert_ret ret;
char *utf8_fn;
ret = utf8_from_local_encoding(
message->data.data_xfer.file_name, 0,
&utf8_fn);
if (ret != UTF8_CONVERT_OK) {
/* A bad encoding should never happen */
assert(ret != UTF8_CONVERT_BADENC);
LOG(("utf8_from_local_encoding failed"));
/* Load was for us - just no memory */
return true;
}
/* Found: update form input. */
free(file_box->gadget->value);
file_box->gadget->value = utf8_fn;
/* Redraw box. */
box_coords(file_box, &x, &y);
gui_window_redraw(bw->window, x, y,
x + file_box->width,
y + file_box->height);
}
else if (message->data.data_xfer.file_type == osfile_TYPE_TEXT) {
const char *filename = message->data.data_xfer.file_name;
browser_window_mouse_click(g->bw, BROWSER_MOUSE_CLICK_1, x, y);
if (!ro_gui_window_import_text(g, filename, false))
return true; /* it was for us, it just didn't work! */
}
else
return false; /* only text files allowed in textareas/input fields */
/* send DataLoadAck */
message->action = message_DATA_LOAD_ACK;
message->your_ref = message->my_ref;
error = xwimp_send_message(wimp_USER_MESSAGE, message, message->sender);
if (error) {
LOG(("xwimp_send_message: 0x%x: %s\n",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
return true;
}
/**
* Handle Message_DataLoad (file dragged in) for a toolbar
*
* \param g window
* \param message Message_DataLoad block
* \return true if the load was processed
*/
bool ro_gui_toolbar_dataload(struct gui_window *g, wimp_message *message)
{
if (message->data.data_xfer.file_type == osfile_TYPE_TEXT &&
ro_gui_window_import_text(g, message->data.data_xfer.file_name, true)) {
os_error *error;
/* send DataLoadAck */
message->action = message_DATA_LOAD_ACK;
message->your_ref = message->my_ref;
error = xwimp_send_message(wimp_USER_MESSAGE, message, message->sender);
if (error) {
LOG(("xwimp_send_message: 0x%x: %s\n",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
return true;
}
return false;
}
/**
* Process pending reformats
*/
void ro_gui_window_process_reformats(void)
{
struct gui_window *g;
for (g = window_list; g; g = g->next) {
if (!g->reformat_pending)
continue;
content_reformat(g->bw->current_content,
g->old_width / 2 / g->option.scale,
gui_window_get_height(g));
g->reformat_pending = false;
}
gui_reformat_pending = false;
}
/**
* Clones a browser window's options.
*
* \param new_bw the new browser window
* \param old_bw the browser window to clone from, or NULL for default
*/
void ro_gui_window_clone_options(struct browser_window *new_bw,
struct browser_window *old_bw) {
struct gui_window *old_gui = NULL;
struct gui_window *new_gui;
assert(new_bw);
/* Get our GUIs
*/
new_gui = new_bw->window;
if (old_bw)
old_gui = old_bw->window;
/* Clone the basic options
*/
if (!old_gui) {
new_gui->option.scale = ((float)option_scale) / 100;
new_gui->option.background_images = option_background_images;
new_gui->option.buffer_animations = option_buffer_animations;
new_gui->option.buffer_everything = option_buffer_everything;
} else {
new_gui->option = old_gui->option;
}
/* Set up the toolbar
*/
if (new_gui->toolbar) {
if ((old_gui) && (old_gui->toolbar)) {
new_gui->toolbar->status_width = old_gui->toolbar->status_width;
new_gui->toolbar->display_status = old_gui->toolbar->display_status;
new_gui->toolbar->display_buttons = old_gui->toolbar->display_buttons;
new_gui->toolbar->display_url = old_gui->toolbar->display_url;
new_gui->toolbar->display_throbber = old_gui->toolbar->display_throbber;
} else {
new_gui->toolbar->status_width = option_toolbar_status_width;
new_gui->toolbar->display_status = option_toolbar_show_status;
new_gui->toolbar->display_buttons = option_toolbar_show_buttons;
new_gui->toolbar->display_url = option_toolbar_show_address;
new_gui->toolbar->display_throbber = option_toolbar_show_throbber;
}
new_gui->toolbar->reformat_buttons = true;
ro_gui_theme_process_toolbar(new_gui->toolbar, -1);
}
}
/**
* Makes a browser window's options the default.
*
* \param bw the browser window to read options from
*/
void ro_gui_window_default_options(struct browser_window *bw) {
struct gui_window *gui;
assert(bw);
/* Get our GUI
*/
gui = bw->window;
if (!gui) return;
/* Save the basic options
*/
option_scale = gui->option.scale * 100;
option_buffer_animations = gui->option.buffer_animations;
option_buffer_everything = gui->option.buffer_everything;
/* Set up the toolbar
*/
if (gui->toolbar) {
option_toolbar_status_width = gui->toolbar->status_width;
option_toolbar_show_status = gui->toolbar->display_status;
option_toolbar_show_buttons = gui->toolbar->display_buttons;
option_toolbar_show_address = gui->toolbar->display_url;
option_toolbar_show_throbber = gui->toolbar->display_throbber;
}
}
/** An entry in ro_gui_pointer_table. */
struct ro_gui_pointer_entry {
bool wimp_area; /** The pointer is in the Wimp's sprite area. */
char sprite_name[12];
int xactive;
int yactive;
};
/** Map from gui_pointer_shape to pointer sprite data. Must be ordered as
* enum gui_pointer_shape. */
struct ro_gui_pointer_entry ro_gui_pointer_table[] = {
{ true, "ptr_default", 0, 0 },
{ false, "ptr_point", 6, 0 },
{ false, "ptr_caret", 4, 9 },
{ false, "ptr_menu", 6, 4 },
{ false, "ptr_ud", 6, 7 },
{ false, "ptr_lr", 7, 6 },
{ false, "ptr_ld", 7, 7 },
{ false, "ptr_rd", 7, 7 },
{ false, "ptr_cross", 7, 7 },
{ false, "ptr_move", 8, 0 },
};
/**
* Change mouse pointer shape
*/
void gui_window_set_pointer(gui_pointer_shape shape)
{
static gui_pointer_shape curr_pointer = GUI_POINTER_DEFAULT;
struct ro_gui_pointer_entry *entry;
os_error *error;
if (shape == curr_pointer)
return;
assert(shape < sizeof ro_gui_pointer_table /
sizeof ro_gui_pointer_table[0]);
entry = &ro_gui_pointer_table[shape];
if (entry->wimp_area) {
/* pointer in the Wimp's sprite area */
error = xwimpspriteop_set_pointer_shape(entry->sprite_name,
1, entry->xactive, entry->yactive, 0, 0);
if (error) {
LOG(("xwimpspriteop_set_pointer_shape: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
} else {
/* pointer in our own sprite area */
error = xosspriteop_set_pointer_shape(osspriteop_USER_AREA,
gui_sprites,
(osspriteop_id) entry->sprite_name,
1, entry->xactive, entry->yactive, 0, 0);
if (error) {
LOG(("xosspriteop_set_pointer_shape: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
}
curr_pointer = shape;
}
/**
* Remove the mouse pointer from the screen
*/
void gui_window_hide_pointer(void)
{
os_error *error;
error = xwimpspriteop_set_pointer_shape(NULL, 0x30, 0, 0, 0, 0);
if (error) {
LOG(("xwimpspriteop_set_pointer_shape: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
}
/**
* Called when the gui_window has new content.
*
* \param g the gui_window that has new content
*/
void gui_window_new_content(struct gui_window *g)
{
ro_gui_menu_objects_moved();
ro_gui_prepare_navigate(g);
ro_gui_dialog_close_persistent(g->window);
}
/**
* Updates the navigation controls for all toolbars;
*
* \param g the gui_window to launch the URL into
* \param url the URL to launch, or NULL to simply update the suggestion icon
*/
void ro_gui_window_prepare_navigate_all(void) {
struct gui_window *g;
for (g = window_list; g; g = g->next)
ro_gui_prepare_navigate(g);
}
/**
* Returns the state of the mouse buttons and modifiers keys for a
* click/release action, suitable for passing to the OS-independent
* browser window code
*/
browser_mouse_state ro_gui_mouse_click_state(wimp_mouse_state buttons)
{
browser_mouse_state state = 0;
if (buttons & (wimp_CLICK_SELECT)) state |= BROWSER_MOUSE_CLICK_1;
if (buttons & (wimp_CLICK_ADJUST)) state |= BROWSER_MOUSE_CLICK_2;
if (buttons & (wimp_DRAG_SELECT)) state |= BROWSER_MOUSE_DRAG_1;
if (buttons & (wimp_DRAG_ADJUST)) state |= BROWSER_MOUSE_DRAG_2;
if (ro_gui_shift_pressed()) state |= BROWSER_MOUSE_MOD_1;
if (ro_gui_ctrl_pressed()) state |= BROWSER_MOUSE_MOD_2;
return state;
}
/**
* Returns the state of the mouse buttons and modifiers keys whilst
* dragging, for passing to the OS-independent browser window code
*/
browser_mouse_state ro_gui_mouse_drag_state(wimp_mouse_state buttons)
{
browser_mouse_state state = 0;
if (buttons & (wimp_CLICK_SELECT)) state |= BROWSER_MOUSE_HOLDING_1;
if (buttons & (wimp_CLICK_ADJUST)) state |= BROWSER_MOUSE_HOLDING_2;
if (ro_gui_shift_pressed()) state |= BROWSER_MOUSE_MOD_1;
if (ro_gui_ctrl_pressed()) state |= BROWSER_MOUSE_MOD_2;
return state;
}
/**
* Returns true iff one or more Shift keys is held down
*/
bool ro_gui_shift_pressed(void)
{
int shift = 0;
xosbyte1(osbyte_SCAN_KEYBOARD, 0 ^ 0x80, 0, &shift);
return (shift == 0xff);
}
/**
* Returns true iff one or more Ctrl keys is held down
*/
bool ro_gui_ctrl_pressed(void)
{
int ctrl = 0;
xosbyte1(osbyte_SCAN_KEYBOARD, 1 ^ 0x80, 0, &ctrl);
return (ctrl == 0xff);
}
/**
* Platform-dependent part of starting a box scrolling operation,
* for frames and textareas.
*
* \param x0 minimum x ordinate of box relative to mouse pointer
* \param y0 minimum y ordinate
* \param x1 maximum x ordinate
* \param y1 maximum y ordinate
* \return true iff succesful
*/
bool gui_window_box_scroll_start(struct gui_window *g, int x0, int y0, int x1, int y1)
{
wimp_pointer pointer;
os_error *error;
wimp_drag drag;
error = xwimp_get_pointer_info(&pointer);
if (error) {
LOG(("xwimp_get_pointer_info 0x%x : %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return false;
}
drag.type = wimp_DRAG_USER_POINT;
drag.bbox.x0 = pointer.pos.x + (int)(x0 * 2 * g->option.scale);
drag.bbox.y0 = pointer.pos.y + (int)(y0 * 2 * g->option.scale);
drag.bbox.x1 = pointer.pos.x + (int)(x1 * 2 * g->option.scale);
drag.bbox.y1 = pointer.pos.y + (int)(y1 * 2 * g->option.scale);
error = xwimp_drag_box(&drag);
if (error) {
LOG(("xwimp_drag_box: 0x%x : %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return false;
}
gui_current_drag_type = GUI_DRAG_SCROLL;
return true;
}
/**
* Starts drag scrolling of a browser window
*
* \param gw gui window
*/
bool gui_window_scroll_start(struct gui_window *g)
{
wimp_window_info_base info;
wimp_pointer pointer;
os_error *error;
wimp_drag drag;
int height;
int width;
error = xwimp_get_pointer_info(&pointer);
if (error) {
LOG(("xwimp_get_pointer_info 0x%x : %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return false;
}
info.w = g->window;
error = xwimp_get_window_info_header_only((wimp_window_info*)&info);
if (error) {
LOG(("xwimp_get_window_state: 0x%x : %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return false;
}
width = info.extent.x1 - info.extent.x0;
height = info.extent.y1 - info.extent.y0;
drag.type = wimp_DRAG_USER_POINT;
drag.bbox.x1 = pointer.pos.x + info.xscroll;
drag.bbox.y0 = pointer.pos.y + info.yscroll;
drag.bbox.x0 = drag.bbox.x1 - (width - (info.visible.x1 - info.visible.x0));
drag.bbox.y1 = drag.bbox.y0 + (height - (info.visible.y1 - info.visible.y0));
if (g->toolbar) {
int tbar_height = ro_gui_theme_toolbar_full_height(g->toolbar);
drag.bbox.y0 -= tbar_height;
drag.bbox.y1 -= tbar_height;
}
error = xwimp_drag_box(&drag);
if (error) {
LOG(("xwimp_drag_box: 0x%x : %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return false;
}
gui_current_drag_type = GUI_DRAG_SCROLL;
return true;
}
/**
* Completes scrolling of a browser window
*
* \param g gui window
*/
void ro_gui_window_scroll_end(struct gui_window *g, wimp_dragged *drag)
{
wimp_window_state state;
wimp_pointer pointer;
os_error *error;
int x, y;
gui_current_drag_type = GUI_DRAG_NONE;
error = xwimp_drag_box((wimp_drag*)-1);
if (error) {
LOG(("xwimp_drag_box: 0x%x : %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
error = xwimp_get_pointer_info(&pointer);
if (error) {
LOG(("xwimp_get_pointer_info 0x%x : %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
error = xwimpspriteop_set_pointer_shape(NULL, 0x31, 0, 0, 0, 0);
if (error) {
LOG(("xwimpspriteop_set_pointer_shape: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
state.w = g->window;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state 0x%x : %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
x = window_x_units(drag->final.x0, &state) / 2 / g->option.scale;
y = -window_y_units(drag->final.y0, &state) / 2 / g->option.scale;
browser_window_mouse_drag_end(g->bw,
ro_gui_mouse_click_state(pointer.buttons), x, y);
}
/**
* Alter the scale setting of a window
*
* \param g gui window
* \param scale scale value (1.0 == normal scale)
*/
void ro_gui_window_set_scale(struct gui_window *g, float scale)
{
struct content *c;
g->option.scale = scale;
g->reformat_pending = true;
c = g->bw->current_content;
if ((c) && (c->type != CONTENT_HTML))
browser_window_update(g->bw, false);
gui_reformat_pending = true;
}
/**
* Import text file into window or its toolbar
*
* \param g gui window containing textarea
* \param filename pathname of file to be imported
* \param toolbar true iff imported to toolbar rather than main window
* \return true iff successful
*/
bool ro_gui_window_import_text(struct gui_window *g, const char *filename,
bool toolbar)
{
fileswitch_object_type obj_type;
os_error *error;
char *buf, *utf8_buf;
int size;
utf8_convert_ret ret;
error = xosfile_read_stamped(filename, &obj_type, NULL, NULL,
&size, NULL, NULL);
if (error) {
LOG(("xosfile_read_stamped: 0x%x:%s",
error->errnum, error->errmess));
warn_user("FileError", error->errmess);
return true; /* was for us, but it didn't work! */
}
buf = malloc(size + 1); /* allow room for NUL terminator */
if (!buf) {
warn_user("NoMemory", NULL);
return true;
}
error = xosfile_load_stamped(filename, (byte*)buf,
NULL, NULL, NULL, NULL, NULL);
if (error) {
LOG(("xosfile_load_stamped: 0x%x:%s",
error->errnum, error->errmess));
warn_user("LoadError", error->errmess);
free(buf);
return true;
}
ret = utf8_from_local_encoding(buf, size + 1, &utf8_buf);
if (ret != UTF8_CONVERT_OK) {
/* bad encoding shouldn't happen */
assert(ret != UTF8_CONVERT_BADENC);
LOG(("utf8_from_local_encoding failed"));
free(buf);
warn_user("NoMemory", NULL);
return true;
}
if (toolbar) {
const char *ep = buf + size;
const char *sp;
char *p = utf8_buf;
/* skip leading whitespace */
while (p < ep && isspace(*p)) p++;
sp = p;
while (p < ep) {
if (*p == '\n' || *p == '\r') break;
p += utf8_next(p, ep - p, 0);
}
*p = '\0';
if (p > sp)
ro_gui_window_launch_url(g, sp);
}
else
browser_window_paste_text(g->bw, utf8_buf,
strlen(utf8_buf), true);
free(buf);
free(utf8_buf);
return true;
}
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