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netsurf/riscos/url_complete.c
Daniel Silverstone 6807b4208a Remove the netsurf/ from the include paths and rationalise use of <> vs "" in includes 
NetSurf includes are now done with ""s and other system includes with <>s as C intended.
The scandeps tool has been updated to only look for ""ed includes, and to verify that the
files exist in the tree before adding them to the dependency lines. The depend rule has
therefore been augmented to make sure the autogenerated files are built before it is run.

This is untested under self-hosted RISC OS builds. All else tested and works.


svn path=/trunk/netsurf/; revision=3307
2007-05-30 22:39:54 +00:00

730 lines
20 KiB
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/*
* This file is part of NetSurf, http://netsurf-browser.org/
* Licensed under the GNU General Public License,
* http://www.opensource.org/licenses/gpl-license
* Copyright 2005 Richard Wilson <info@tinct.net>
*/
/** \file
* GUI URL auto-completion (implementation).
*/
#include <assert.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include "oslib/wimp.h"
#include "content/urldb.h"
#include "utils/log.h"
#include "riscos/global_history.h"
#include "riscos/gui.h"
#include "riscos/options.h"
#include "riscos/theme.h"
#include "riscos/url_complete.h"
#include "riscos/wimp.h"
#include "riscos/wimp_event.h"
#include "utils/utils.h"
#define MAXIMUM_VISIBLE_LINES 7
static const char **url_complete_matches = NULL;
static int url_complete_matches_allocated = 0;
static int url_complete_matches_available = 0;
static char *url_complete_matched_string = NULL;
static int url_complete_matches_selection = -1;
static int url_complete_keypress_selection = -1;
static wimp_w url_complete_parent = 0;
static bool url_complete_matches_reset = false;
static char *url_complete_original_url = NULL;
static bool url_complete_memory_exhausted = false;
static const char *url_complete_redraw[MAXIMUM_VISIBLE_LINES];
static char url_complete_icon_null[] = "\0";
static char url_complete_icon_sprite[12];
static wimp_icon url_complete_icon;
static wimp_icon url_complete_sprite;
static int mouse_x;
static int mouse_y;
static bool url_complete_callback(const char *url,
const struct url_data *data);
/**
* Should be called when the caret is placed into a URL completion icon.
*
* \param g the gui_window to initialise URL completion for
*/
void ro_gui_url_complete_start(struct gui_window *g)
{
char *url;
if ((!g->toolbar) || (!g->toolbar->display_url) ||
(g->window == url_complete_parent))
return;
ro_gui_url_complete_close(NULL, 0);
url = ro_gui_get_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL);
url_complete_matched_string = strdup(url);
if (url_complete_matched_string)
url_complete_parent = g->window;
}
/**
* Handles a keypress for URL completion
*
* \param g the gui_window to update
* \param key the key pressed (as UTF32 code or wimp key + bit31 set)
* \return true to indicate keypress handled, false otherwise
*/
bool ro_gui_url_complete_keypress(struct gui_window *g, wchar_t key)
{
wimp_window_state state;
char *match_url;
char *url;
int i, lines;
int old_selection;
int height;
os_error *error;
bool currently_open;
/* we must have a toolbar/url bar */
if ((!g->toolbar) || (!g->toolbar->display_url) ||
(!option_url_suggestion)) {
ro_gui_url_complete_close(NULL, 0);
return false;
}
/* if we are currently active elsewhere, remove the previous window */
currently_open = ((g->window == url_complete_parent) &&
(url_complete_matches_available > 0));
if (g->window != url_complete_parent)
ro_gui_url_complete_close(NULL, 0);
/* forcibly open on down keys */
if ((!currently_open) && (url_complete_matched_string)) {
switch (key) {
case IS_WIMP_KEY | wimp_KEY_DOWN:
case IS_WIMP_KEY | wimp_KEY_PAGE_DOWN:
case IS_WIMP_KEY | wimp_KEY_CONTROL | wimp_KEY_DOWN:
free(url_complete_matched_string);
url_complete_matched_string = NULL;
}
}
/* get the text to match */
url_complete_parent = g->window;
url = ro_gui_get_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL);
match_url = strdup(url);
if (!match_url) {
ro_gui_url_complete_close(NULL, 0);
return false;
}
/* if the text to match has changed then update it */
if ((!url_complete_matched_string) ||
(strcmp(match_url, url_complete_matched_string))) {
/* memorize the current matches */
lines = MAXIMUM_VISIBLE_LINES;
if (lines > url_complete_matches_available)
lines = url_complete_matches_available;
if (url_complete_matches)
for (i = 0; i < MAXIMUM_VISIBLE_LINES; i++)
url_complete_redraw[i] =
url_complete_matches[i];
/* our selection gets wiped */
error = xwimp_force_redraw(dialog_url_complete,
0,
-(url_complete_matches_selection + 1) * 44,
65536, -url_complete_matches_selection * 44);
if (error) {
LOG(("xwimp_force_redraw: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
/* clear our state */
free(url_complete_original_url);
free(url_complete_matched_string);
url_complete_matched_string = match_url;
url_complete_original_url = NULL;
url_complete_matches_available = 0;
url_complete_matches_selection = -1;
url_complete_keypress_selection = -1;
/* get some initial memory */
if (!url_complete_matches) {
url_complete_matches = malloc(64 * sizeof(char *));
if (!url_complete_matches) {
ro_gui_url_complete_close(NULL, 0);
return false;
}
url_complete_matches_allocated = 64;
}
/* find matches */
url_complete_memory_exhausted = false;
if (strlen(match_url) == 0)
urldb_iterate_entries(url_complete_callback);
else
urldb_iterate_partial(match_url, url_complete_callback);
if ((url_complete_memory_exhausted) ||
(url_complete_matches_available == 0)) {
ro_gui_url_complete_close(NULL, 0);
return false;
}
/* update 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 false;
}
url_complete_matches_reset = true;
ro_gui_url_complete_resize(g, (wimp_open *)&state);
url_complete_matches_reset = false;
/* redraw the relevant bits of the window */
lines = MAXIMUM_VISIBLE_LINES;
if (lines > url_complete_matches_available)
lines = url_complete_matches_available;
for (i = 0; i < lines; i++) {
if (url_complete_redraw[i] !=
url_complete_matches[i]) {
error = xwimp_force_redraw(dialog_url_complete,
0, -(i + 1) * 44, 65536, -i * 44);
if (error) {
LOG(("xwimp_force_redraw: 0x%x: %s",
error->errnum,
error->errmess));
warn_user("WimpError",
error->errmess);
}
}
}
} else {
free(match_url);
}
/* handle keypresses */
if (!currently_open)
return false;
old_selection = url_complete_matches_selection;
switch (key) {
case IS_WIMP_KEY | wimp_KEY_UP:
url_complete_matches_selection--;
break;
case IS_WIMP_KEY | wimp_KEY_DOWN:
url_complete_matches_selection++;
break;
case IS_WIMP_KEY | wimp_KEY_PAGE_UP:
url_complete_matches_selection -=
MAXIMUM_VISIBLE_LINES;
break;
case IS_WIMP_KEY | wimp_KEY_PAGE_DOWN:
url_complete_matches_selection +=
MAXIMUM_VISIBLE_LINES;
break;
case IS_WIMP_KEY | wimp_KEY_CONTROL | wimp_KEY_UP:
url_complete_matches_selection = 0;
break;
case IS_WIMP_KEY | wimp_KEY_CONTROL | wimp_KEY_DOWN:
url_complete_matches_selection = 65536;
break;
}
if (url_complete_matches_selection >
url_complete_matches_available - 1)
url_complete_matches_selection =
url_complete_matches_available - 1;
else if (url_complete_matches_selection < -1)
url_complete_matches_selection = -1;
if (old_selection == url_complete_matches_selection)
return false;
error = xwimp_force_redraw(dialog_url_complete,
0, -(old_selection + 1) * 44,
65536, -old_selection * 44);
if (error) {
LOG(("xwimp_force_redraw: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
error = xwimp_force_redraw(dialog_url_complete,
0, -(url_complete_matches_selection + 1) * 44,
65536, -url_complete_matches_selection * 44);
if (error) {
LOG(("xwimp_force_redraw: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
if (old_selection == -1) {
free(url_complete_original_url);
url_complete_original_url = malloc(strlen(url) + 1);
if (!url_complete_original_url)
return false;
strcpy(url_complete_original_url, url);
}
if (url_complete_matches_selection == -1) {
ro_gui_set_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL,
url_complete_original_url);
} else {
ro_gui_set_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL,
url_complete_matches[
url_complete_matches_selection]);
free(url_complete_matched_string);
url_complete_matched_string = strdup(url_complete_matches[
url_complete_matches_selection]);
}
url_complete_keypress_selection = url_complete_matches_selection;
/* auto-scroll */
state.w = dialog_url_complete;
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 true;
}
if (state.yscroll < -(url_complete_matches_selection * 44))
state.yscroll = -(url_complete_matches_selection * 44);
height = state.visible.y1 - state.visible.y0;
if (state.yscroll - height >
-((url_complete_matches_selection + 1) * 44))
state.yscroll =
-((url_complete_matches_selection + 1) * 44) + height;
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);
return true;
}
return true;
}
/**
* Callback function for urldb_iterate_partial
*
* \param url URL which matches
* \param data Data associated with URL
* \return true to continue iteration, false otherwise
*/
bool url_complete_callback(const char *url, const struct url_data *data)
{
const char **array_extend;
/* Ignore unvisited URLs */
if (data->visits == 0)
return true;
url_complete_matches_available++;
if (url_complete_matches_available >
url_complete_matches_allocated) {
array_extend = (const char **)realloc(url_complete_matches,
(url_complete_matches_allocated + 64) *
sizeof(char *));
if (!array_extend) {
url_complete_memory_exhausted = true;
return false;
}
url_complete_matches = array_extend;
url_complete_matches_allocated += 64;
}
url_complete_matches[url_complete_matches_available - 1] = url;
return true;
}
/**
* Move and resize the url completion window to match the toolbar.
*
* \param g the gui_window to update
* \param open the wimp_open request (updated on exit)
*/
void ro_gui_url_complete_resize(struct gui_window *g, wimp_open *open)
{
os_box extent = { 0, 0, 0, 0 };
wimp_icon_state url_state;
wimp_window_state toolbar_state;
wimp_window_state state;
os_error *error;
int lines;
int scroll_v = 0;
/* only react to our window */
if (open->w != url_complete_parent)
return;
/* if there is no toolbar, or there is no URL bar shown,
* or there are no URL matches, close it */
if ((!g->toolbar) || (!g->toolbar->display_url) ||
(!url_complete_matches) ||
(url_complete_matches_available == 0)) {
ro_gui_url_complete_close(NULL, 0);
return;
}
/* get our current auto-complete window state for the scroll values */
state.w = dialog_url_complete;
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 (url_complete_matches_reset)
state.yscroll = 0;
/* move the window to the correct position */
toolbar_state.w = g->toolbar->toolbar_handle;
error = xwimp_get_window_state(&toolbar_state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
url_state.w = g->toolbar->toolbar_handle;
url_state.i = ICON_TOOLBAR_SURROUND;
error = xwimp_get_icon_state(&url_state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
lines = url_complete_matches_available;
extent.y0 = -(lines * 44);
extent.x1 = 65536;
error = xwimp_set_extent(dialog_url_complete, &extent);
if (error) {
LOG(("xwimp_set_extent: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
state.next = open->next;
state.flags &= ~wimp_WINDOW_VSCROLL;
state.flags &= ~(4095 << 16); /* clear bits 16-27 */
if (lines > MAXIMUM_VISIBLE_LINES) {
lines = MAXIMUM_VISIBLE_LINES;
scroll_v = ro_get_vscroll_width(NULL) - 2;
state.flags |= wimp_WINDOW_VSCROLL;
}
state.visible.x0 = open->visible.x0 + 2 + url_state.icon.extent.x0;
state.visible.x1 = open->visible.x0 - 2 +
url_state.icon.extent.x1 - scroll_v;
state.visible.y1 = open->visible.y1 - url_state.icon.extent.y1 + 2;
state.visible.y0 = state.visible.y1 - (lines * 44);
if (state.visible.x1 + scroll_v > toolbar_state.visible.x1)
state.visible.x1 = toolbar_state.visible.x1 - scroll_v;
if (state.visible.x1 - state.visible.x0 < 0) {
error = xwimp_close_window(dialog_url_complete);
if (error) {
LOG(("xwimp_close_window: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
} else {
error = xwimp_open_window_nested_with_flags(&state,
(wimp_w)-1, 0);
if (error) {
LOG(("xwimp_open_window: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
return;
}
open->next = dialog_url_complete;
}
}
/**
* Try to close the current url completion window
*
* \param g the gui_window the user clicked on (or NULL to forcibly close)
* \param i the icon the user clicked on to prompt the close
* \return whether the window was closed
*/
bool ro_gui_url_complete_close(struct gui_window *g, wimp_i i)
{
os_error *error;
bool currently_open;
if ((g && (i == ICON_TOOLBAR_URL) &&
(g->window == url_complete_parent)))
return false;
currently_open = ((url_complete_parent) &&
(url_complete_matches_available > 0));
free(url_complete_matches);
free(url_complete_matched_string);
free(url_complete_original_url);
url_complete_matches = NULL;
url_complete_matched_string = NULL;
url_complete_original_url = NULL;
url_complete_matches_allocated = 0;
url_complete_matches_available = 0;
url_complete_keypress_selection = -1;
url_complete_matches_selection = -1;
url_complete_parent = 0;
error = xwimp_close_window(dialog_url_complete);
if (error) {
LOG(("xwimp_close_window: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
return currently_open;
}
/**
* Redraws a section of the URL completion window
*
* \param redraw the area to redraw
*/
void ro_gui_url_complete_redraw(wimp_draw *redraw)
{
osbool more;
os_error *error;
int clip_y0, clip_y1, origin_y;
int first_line, last_line, line;
const struct url_data *data;
int type;
/* initialise our icon */
url_complete_icon.flags = wimp_ICON_INDIRECTED | wimp_ICON_VCENTRED |
wimp_ICON_TEXT | wimp_ICON_FILLED |
(wimp_COLOUR_BLACK << wimp_ICON_FG_COLOUR_SHIFT) |
(wimp_COLOUR_WHITE << wimp_ICON_BG_COLOUR_SHIFT);
url_complete_icon.extent.x0 = 50;
url_complete_icon.extent.x1 = 16384;
url_complete_icon.data.indirected_text.validation =
url_complete_icon_null;
url_complete_sprite.flags = wimp_ICON_TEXT | wimp_ICON_SPRITE |
wimp_ICON_INDIRECTED | wimp_ICON_FILLED |
wimp_ICON_HCENTRED | wimp_ICON_VCENTRED;
url_complete_sprite.extent.x0 = 0;
url_complete_sprite.extent.x1 = 50;
url_complete_sprite.data.indirected_text.text =
url_complete_icon_null;
url_complete_sprite.data.indirected_text.validation =
url_complete_icon_sprite;
url_complete_sprite.data.indirected_text.size = 1;
/* no matches? no redraw */
if (!url_complete_matches) {
LOG(("Attempt to redraw with no matches made"));
ro_gui_user_redraw(redraw, false, NULL);
return;
}
/* redraw */
more = wimp_redraw_window(redraw);
while (more) {
origin_y = redraw->box.y1 - redraw->yscroll;
clip_y0 = redraw->clip.y0 - origin_y;
clip_y1 = redraw->clip.y1 - origin_y;
first_line = (-clip_y1) / 44;
last_line = (-clip_y0 + 43) / 44;
for (line = first_line; line < last_line; line++) {
if (line == url_complete_matches_selection)
url_complete_icon.flags |=
wimp_ICON_SELECTED;
else
url_complete_icon.flags &=
~wimp_ICON_SELECTED;
url_complete_icon.extent.y1 = -line * 44;
url_complete_icon.extent.y0 = -(line + 1) * 44;
url_complete_icon.data.indirected_text.text =
url_complete_matches[line];
url_complete_icon.data.indirected_text.size =
strlen(url_complete_matches[line]);
error = xwimp_plot_icon(&url_complete_icon);
if (error) {
LOG(("xwimp_plot_icon: 0x%x: %s",
error->errnum,
error->errmess));
warn_user("WimpError", error->errmess);
}
data = urldb_get_url_data(url_complete_matches[line]);
if (data)
type = ro_content_filetype_from_type(
data->type);
else
type = 0;
sprintf(url_complete_icon_sprite, "Ssmall_%.3x",
type);
if (!ro_gui_wimp_sprite_exists(
url_complete_icon_sprite + 1))
sprintf(url_complete_icon_sprite,
"Ssmall_xxx");
url_complete_sprite.extent.y1 = -line * 44;
url_complete_sprite.extent.y0 = -(line + 1) * 44;
error = xwimp_plot_icon(&url_complete_sprite);
if (error) {
LOG(("xwimp_plot_icon: 0x%x: %s",
error->errnum,
error->errmess));
warn_user("WimpError", error->errmess);
}
}
more = wimp_get_rectangle(redraw);
}
}
/**
* Handle mouse movement over the URL completion window.
*
* \param pointer the pointer state
*/
void ro_gui_url_complete_mouse_at(wimp_pointer *pointer)
{
wimp_mouse_state current;
current = pointer->buttons;
pointer->buttons = 0;
ro_gui_url_complete_click(pointer);
pointer->buttons = current;
}
/**
* Handle mouse clicks in the URL completion window.
*
* \param pointer the pointer state
* \return whether the click was handled
*/
bool ro_gui_url_complete_click(wimp_pointer *pointer)
{
wimp_window_state state;
os_error *error;
int selection, old_selection;
struct gui_window *g;
char *url;
if ((mouse_x == pointer->pos.x) && (mouse_y == pointer->pos.y) &&
(!pointer->buttons))
return false;
mouse_x = pointer->pos.x;
mouse_y = pointer->pos.y;
state.w = dialog_url_complete;
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;
}
selection = (state.visible.y1 - pointer->pos.y - state.yscroll) / 44;
if (selection != url_complete_matches_selection) {
if (url_complete_matches_selection == -1) {
g = ro_gui_window_lookup(url_complete_parent);
if (!g)
return false;
url = ro_gui_get_icon_string(
g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL);
free(url_complete_original_url);
url_complete_original_url = malloc(strlen(url) + 1);
if (!url_complete_original_url)
return false;
strcpy(url_complete_original_url, url);
}
old_selection = url_complete_matches_selection;
url_complete_matches_selection = selection;
error = xwimp_force_redraw(dialog_url_complete,
0, -(old_selection + 1) * 44,
65536, -old_selection * 44);
if (error) {
LOG(("xwimp_force_redraw: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
error = xwimp_force_redraw(dialog_url_complete,
0, -(url_complete_matches_selection + 1) * 44,
65536, -url_complete_matches_selection * 44);
if (error) {
LOG(("xwimp_force_redraw: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
}
}
if (!pointer->buttons)
return true;
/* find owning window */
g = ro_gui_window_lookup(url_complete_parent);
if (!g)
return false;
/* Select sets the text and launches */
if (pointer->buttons == wimp_CLICK_SELECT) {
ro_gui_set_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL,
url_complete_matches[
url_complete_matches_selection]);
browser_window_go(g->bw,
url_complete_matches[
url_complete_matches_selection],
0, true);
global_history_add_recent(url_complete_matches[
url_complete_matches_selection]);
ro_gui_url_complete_close(NULL, 0);
/* Adjust just sets the text */
} else if (pointer->buttons == wimp_CLICK_ADJUST) {
ro_gui_set_icon_string(g->toolbar->toolbar_handle,
ICON_TOOLBAR_URL,
url_complete_matches[
url_complete_matches_selection]);
ro_gui_url_complete_keypress(g, 0);
}
return true;
}
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