netsurf/riscos/global_history.c

444 lines
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C
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/*
* Copyright 2005 Richard Wilson <info@tinct.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
* Global history (implementation).
*/
#include <assert.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "oslib/wimp.h"
#include "oslib/wimpspriteop.h"
#include "content/urldb.h"
#include "desktop/tree.h"
#include "riscos/dialog.h"
#include "riscos/global_history.h"
#include "riscos/gui.h"
#include "riscos/menus.h"
#include "riscos/options.h"
#include "riscos/theme.h"
#include "riscos/treeview.h"
#include "riscos/wimp.h"
#include "riscos/wimp_event.h"
#include "utils/messages.h"
#include "utils/log.h"
#include "utils/url.h"
#include "utils/utils.h"
#define MAXIMUM_URL_LENGTH 1024
#define MAXIMUM_BASE_NODES 16
static struct node *global_history_base_node[MAXIMUM_BASE_NODES];
static int global_history_base_node_time[MAXIMUM_BASE_NODES];
static int global_history_base_node_count = 0;
static char *global_history_recent_url[GLOBAL_HISTORY_RECENT_URLS];
static int global_history_recent_count = 0;
static bool global_history_init;
static bool ro_gui_global_history_click(wimp_pointer *pointer);
static void ro_gui_global_history_initialise_nodes(void);
static void ro_gui_global_history_initialise_node(const char *title,
time_t base, int days_back);
static struct node *ro_gui_global_history_find(const char *url);
static bool global_history_add_internal(const char *url,
const struct url_data *data);
/* The history window, toolbar and plot origins */
static wimp_w global_history_window;
struct tree *global_history_tree;
/**
* Initialise global history tree
*/
void ro_gui_global_history_initialise(void)
{
char s[MAXIMUM_URL_LENGTH];
FILE *fp;
/* create our window */
global_history_window = ro_gui_dialog_create("tree");
ro_gui_set_window_title(global_history_window,
messages_get("GlobalHistory"));
ro_gui_wimp_event_register_redraw_window(global_history_window,
ro_gui_tree_redraw);
ro_gui_wimp_event_register_open_window(global_history_window,
ro_gui_tree_open);
ro_gui_wimp_event_register_mouse_click(global_history_window,
ro_gui_global_history_click);
/* Create an empty tree */
global_history_tree = calloc(sizeof(struct tree), 1);
if (!global_history_tree) {
warn_user("NoMemory", 0);
return;
}
global_history_tree->root = tree_create_folder_node(NULL, "Root");
if (!global_history_tree->root) {
warn_user("NoMemory", 0);
free(global_history_tree);
global_history_tree = NULL;
}
global_history_tree->root->expanded = true;
ro_gui_global_history_initialise_nodes();
global_history_tree->handle = (int)global_history_window;
global_history_tree->movable = false;
ro_gui_wimp_event_set_user_data(global_history_window,
global_history_tree);
ro_gui_wimp_event_register_keypress(global_history_window,
ro_gui_tree_keypress);
/* Create our toolbar */
global_history_tree->toolbar = ro_gui_theme_create_toolbar(NULL,
THEME_HISTORY_TOOLBAR);
if (global_history_tree->toolbar)
ro_gui_theme_attach_toolbar(global_history_tree->toolbar,
global_history_window);
/* load recent URLs */
fp = fopen(option_recent_path, "r");
if (!fp)
LOG(("Failed to open file '%s' for reading",
option_recent_path));
else {
while (fgets(s, MAXIMUM_URL_LENGTH, fp)) {
if (s[strlen(s) - 1] == '\n')
s[strlen(s) - 1] = '\0';
global_history_add_recent(s);
}
fclose(fp);
}
global_history_init = true;
urldb_iterate_entries(global_history_add_internal);
global_history_init = false;
tree_initialise(global_history_tree);
}
/**
* Initialises the base nodes
*/
void ro_gui_global_history_initialise_nodes(void)
{
struct tm *full_time;
time_t t;
int weekday;
int i;
/* get the current time */
t = time(NULL);
if (t == -1)
return;
/* get the time at the start of today */
full_time = localtime(&t);
weekday = full_time->tm_wday;
full_time->tm_sec = 0;
full_time->tm_min = 0;
full_time->tm_hour = 0;
t = mktime(full_time);
if (t == -1)
return;
ro_gui_global_history_initialise_node(messages_get("DateToday"), t, 0);
if (weekday > 0)
ro_gui_global_history_initialise_node(
messages_get("DateYesterday"), t, -1);
for (i = 2; i <= weekday; i++)
ro_gui_global_history_initialise_node(NULL, t, -i);
ro_gui_global_history_initialise_node(messages_get("Date1Week"),
t, -weekday - 7);
ro_gui_global_history_initialise_node(messages_get("Date2Week"),
t, -weekday - 14);
ro_gui_global_history_initialise_node(messages_get("Date3Week"),
t, -weekday - 21);
}
/**
* Create and initialise a node
*/
void ro_gui_global_history_initialise_node(const char *title,
time_t base, int days_back)
{
struct tm *full_time;
char buffer[64];
struct node *node;
base += days_back * 60 * 60 * 24;
if (!title) {
full_time = localtime(&base);
strftime((char *)&buffer, (size_t)64, "%A", full_time);
node = tree_create_folder_node(NULL, buffer);
} else
node = tree_create_folder_node(NULL, title);
if (!node)
return;
node->retain_in_memory = true;
node->deleted = true;
node->editable = false;
global_history_base_node[global_history_base_node_count] = node;
global_history_base_node_time[global_history_base_node_count] = base;
global_history_base_node_count++;
}
/**
* Saves the global history's recent URL data.
*/
void ro_gui_global_history_save(void)
{
FILE *fp;
int i;
/* save recent URLs */
fp = fopen(option_recent_save, "w");
if (!fp)
LOG(("Failed to open file '%s' for writing",
option_recent_save));
else {
for (i = global_history_recent_count - 1; i >= 0; i--)
if (strlen(global_history_recent_url[i]) <
MAXIMUM_URL_LENGTH)
fprintf(fp, "%s\n",
global_history_recent_url[i]);
fclose(fp);
}
}
/**
* Respond to a mouse click
*
* \param pointer the pointer state
* \return true to indicate click handled
*/
bool ro_gui_global_history_click(wimp_pointer *pointer)
{
ro_gui_tree_click(pointer, global_history_tree);
if (pointer->buttons == wimp_CLICK_MENU)
ro_gui_menu_create(global_history_menu, pointer->pos.x,
pointer->pos.y, pointer->w);
else
ro_gui_menu_prepare_action(pointer->w, TREE_SELECTION, false);
return true;
}
/**
* Adds to the global history
*
* \param url The URL to add
*/
void global_history_add(const char *url)
{
const struct url_data *data;
data = urldb_get_url_data(url);
if (!data)
return;
global_history_add_internal(url, data);
}
/**
* Internal routine to actually perform global history addition
*
* \param url The URL to add
* \param data URL data associated with URL
* \return true (for urldb_iterate_entries)
*/
bool global_history_add_internal(const char *url,
const struct url_data *data)
{
int i, j;
struct node *parent = NULL;
struct node *link;
struct node *node;
bool before = false;
int visit_date;
assert(url && data);
visit_date = data->last_visit;
/* find parent node */
for (i = 0; i < global_history_base_node_count; i++) {
if (global_history_base_node_time[i] <= visit_date) {
parent = global_history_base_node[i];
break;
}
}
/* the entry is too old to care about */
if (!parent)
return true;
if (parent->deleted) {
/* parent was deleted, so find place to insert it */
link = global_history_tree->root;
for (j = global_history_base_node_count - 1; j >= 0; j--) {
if (!global_history_base_node[j]->deleted &&
global_history_base_node_time[j] >
global_history_base_node_time[i]) {
link = global_history_base_node[j];
before = true;
break;
}
}
tree_set_node_selected(global_history_tree,
parent, false);
tree_set_node_expanded(global_history_tree,
parent, false);
tree_link_node(link, parent, before);
if (!global_history_init) {
tree_recalculate_node(global_history_tree, parent, true);
tree_recalculate_node_positions(global_history_tree,
global_history_tree->root);
tree_redraw_area(global_history_tree,
0, 0, 16384, 16384);
}
}
/* find any previous occurance */
if (!global_history_init) {
node = ro_gui_global_history_find(url);
if (node) {
/* \todo: calculate old/new positions and redraw
* only the relevant portion */
tree_redraw_area(global_history_tree,
0, 0, 16384, 16384);
tree_update_URL_node(node, url, data);
tree_delink_node(node);
tree_link_node(parent, node, false);
tree_handle_node_changed(global_history_tree,
node, false, true);
/* ro_gui_tree_scroll_visible(hotlist_tree,
&node->data);
*/ return true;
}
}
/* Add the node at the bottom */
node = tree_create_URL_node_shared(parent, url, data);
if ((!global_history_init) && (node)) {
tree_redraw_area(global_history_tree,
node->box.x - NODE_INSTEP,
0, NODE_INSTEP, 16384);
tree_handle_node_changed(global_history_tree, node,
true, false);
}
return true;
}
/**
* Find an entry in the global history
*
* \param url The URL to find
* \return Pointer to node, or NULL if not found
*/
struct node *ro_gui_global_history_find(const char *url)
{
int i;
struct node *node;
struct node_element *element;
for (i = 0; i < global_history_base_node_count; i++) {
if (!global_history_base_node[i]->deleted) {
for (node = global_history_base_node[i]->child;
node; node = node->next) {
element = tree_find_element(node,
TREE_ELEMENT_URL);
if ((element) && !strcmp(url, element->text))
return node;
}
}
}
return NULL;
}
/**
* Adds an URL to the recently used list
*
* \param url the URL to add (copied)
*/
void global_history_add_recent(const char *url)
{
int i;
int j = -1;
char *current;
/* try to find a string already there */
for (i = 0; i < global_history_recent_count; i++)
if (global_history_recent_url[i] &&
!strcmp(global_history_recent_url[i], url))
j = i;
/* already at head of list */
if (j == 0)
return;
if (j < 0) {
/* add to head of list */
free(global_history_recent_url[
GLOBAL_HISTORY_RECENT_URLS - 1]);
memmove(&global_history_recent_url[1],
&global_history_recent_url[0],
(GLOBAL_HISTORY_RECENT_URLS - 1) *
sizeof(char *));
global_history_recent_url[0] = strdup(url);
global_history_recent_count++;
if (global_history_recent_count > GLOBAL_HISTORY_RECENT_URLS)
global_history_recent_count =
GLOBAL_HISTORY_RECENT_URLS;
if (global_history_recent_count == 1)
ro_gui_window_prepare_navigate_all();
} else {
/* move to head of list */
current = global_history_recent_url[j];
for (i = j; i > 0; i--)
global_history_recent_url[i] =
global_history_recent_url[i - 1];
global_history_recent_url[0] = current;
}
}
/**
* Gets details of the currently used URL list.
*
* \param count set to the current number of entries in the URL array on exit
* \return the current URL array
*/
char **global_history_get_recent(int *count)
{
*count = global_history_recent_count;
return global_history_recent_url;
}