plugin_hack.c

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/*
 * Copyright 2011 Chris Young <chris@unsatisfactorysoftware.co.uk>
 *
 * 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
 * Plugin=>external program handler (implementation)
*/
 
#include "amiga/os3support.h"
 
#include <stdlib.h>
#include <proto/dos.h>
#include <proto/exec.h>
#include <proto/intuition.h>
#include <proto/utility.h>
 
#include "utils/log.h"
#include "utils/messages.h"
#include "netsurf/plotters.h"
#include "netsurf/content.h"
#include "amiga/filetype.h"
#include "amiga/plugin_hack.h"
#include "content/content_protected.h"
#include "content/content_factory.h"
#include "content/llcache.h"
 
 
typedef struct amiga_plugin_hack_content {
        struct content base;
} amiga_plugin_hack_content;
 
static nserror amiga_plugin_hack_create(const content_handler *handler,
                lwc_string *imime_type, const struct http_parameter *params,
                llcache_handle *llcache, const char *fallback_charset,
                bool quirks, struct content **c);
static bool amiga_plugin_hack_convert(struct content *c);
static void amiga_plugin_hack_reformat(struct content *c, int width, int height);
static void amiga_plugin_hack_destroy(struct content *c);
static bool amiga_plugin_hack_redraw(struct content *c,
                struct content_redraw_data *data, const struct rect *clip,
                const struct redraw_context *ctx);
static nserror amiga_plugin_hack_open(struct content *c, struct browser_window *bw,
                struct content *page, struct object_params *params);
static nserror amiga_plugin_hack_close(struct content *c);
static nserror amiga_plugin_hack_clone(const struct content *old, struct content **newc);
static content_type amiga_plugin_hack_content_type(void);
 
static const content_handler amiga_plugin_hack_content_handler = {
        .create = amiga_plugin_hack_create,
        .data_complete = amiga_plugin_hack_convert,
        .reformat = amiga_plugin_hack_reformat,
        .destroy = amiga_plugin_hack_destroy,
        .redraw = amiga_plugin_hack_redraw,
        .open = amiga_plugin_hack_open,
        .close = amiga_plugin_hack_close,
        .clone = amiga_plugin_hack_clone,
        .type = amiga_plugin_hack_content_type,
        .no_share = false,
};
 
nserror amiga_plugin_hack_init(void)
{
        struct Node *node = NULL;
        lwc_string *type;
        nserror error;
 
        do {
                node = ami_mime_has_cmd(&type, node);
 
                if(node)
                {
                        NSLOG(netsurf, INFO, "plugin_hack registered %s",
                              lwc_string_data(type));
 
                        error = content_factory_register_handler(
                                lwc_string_data(type), 
                                &amiga_plugin_hack_content_handler);
 
                        if (error != NSERROR_OK)
                                return error;
                }
 
        }while (node != NULL);
 
        return NSERROR_OK;
}
 
nserror amiga_plugin_hack_create(const content_handler *handler,
                lwc_string *imime_type, const struct http_parameter *params,
                llcache_handle *llcache, const char *fallback_charset,
                bool quirks, struct content **c)
{
        amiga_plugin_hack_content *plugin;
        nserror error;
 
        plugin = calloc(1, sizeof(amiga_plugin_hack_content));
        if (plugin == NULL)
                return NSERROR_NOMEM;
 
        error = content__init(&plugin->base, handler, imime_type, params,
                        llcache, fallback_charset, quirks);
        if (error != NSERROR_OK) {
                free(plugin);
                return error;
        }
 
        *c = (struct content *) plugin;
 
        return NSERROR_OK;
}
 
bool amiga_plugin_hack_convert(struct content *c)
{
        NSLOG(netsurf, INFO, "amiga_plugin_hack_convert");
 
        content_set_ready(c);
        content_set_done(c);
 
        content_set_status(c, "");
 
        return true;
}
 
void amiga_plugin_hack_destroy(struct content *c)
{
        amiga_plugin_hack_content *plugin = (amiga_plugin_hack_content *) c;
 
        NSLOG(netsurf, INFO, "amiga_plugin_hack_destroy %p", plugin);
 
        return;
}
 
bool amiga_plugin_hack_redraw(struct content *c,
                struct content_redraw_data *data, const struct rect *clip,
                const struct redraw_context *ctx)
{
        plot_style_t pstyle = {
                .fill_type = PLOT_OP_TYPE_SOLID,
                .fill_colour = 0xffffff,
                .stroke_colour = 0x000000,
                .stroke_width = plot_style_int_to_fixed(1),
        };
        struct rect rect;
        nserror res;
 
        NSLOG(netsurf, INFO, "amiga_plugin_hack_redraw");
 
        rect.x0 = data->x;
        rect.y0 = data->y;
        rect.x1 = data->x + data->width;
        rect.y1 = data->y + data->height;
 
        ctx->plot->rectangle(ctx, &pstyle, &rect);
 
        res = ctx->plot->text(ctx,
                              plot_style_font,
                              data->x, data->y+20,
                              lwc_string_data(content__get_mime_type(c)),
                              lwc_string_length(content__get_mime_type(c)));
        if (res != NSERROR_OK) {
                return false;
        }
        return true;
}
 
/**
 * Handle a window containing a CONTENT_PLUGIN being opened.
 *
 * \param  c       content that has been opened
 * \param  bw      browser window containing the content
 * \param  page    content of type CONTENT_HTML containing c, or 0 if not an
 *                 object within a page
 * \param  params  object parameters, or 0 if not an object
 */
nserror amiga_plugin_hack_open(struct content *c, struct browser_window *bw,
        struct content *page, struct object_params *params)
{
        NSLOG(netsurf, INFO, "amiga_plugin_hack_open %s",
              nsurl_access(content_get_url(c)));
 
        if(c)
        {
                /* TODO: Do we need valid dimensions at this point? */
                c->width = 0;
                c->height = 0;
        }
 
        return NSERROR_OK;
}
 
nserror amiga_plugin_hack_close(struct content *c)
{
        NSLOG(netsurf, INFO, "amiga_plugin_hack_close");
        return NSERROR_OK;
}
 
void amiga_plugin_hack_reformat(struct content *c, int width, int height)
{
        NSLOG(netsurf, INFO, "amiga_plugin_hack_reformat");
 
        c->width = width;
        c->height = height;
 
        return;
}
 
nserror amiga_plugin_hack_clone(const struct content *old, struct content **newc)
{
        amiga_plugin_hack_content *plugin;
        nserror error;
 
        NSLOG(netsurf, INFO, "amiga_plugin_hack_clone");
 
        plugin = calloc(1, sizeof(amiga_plugin_hack_content));
        if (plugin == NULL)
                return NSERROR_NOMEM;
 
        error = content__clone(old, &plugin->base);
        if (error != NSERROR_OK) {
                content_destroy(&plugin->base);
                return error;
        }
 
        /* We "clone" the old content by replaying conversion */
        if (old->status == CONTENT_STATUS_READY || 
                        old->status == CONTENT_STATUS_DONE) {
                if (amiga_plugin_hack_convert(&plugin->base) == false) {
                        content_destroy(&plugin->base);
                        return NSERROR_CLONE_FAILED;
                }
        }
 
        *newc = (struct content *) plugin;
 
        return NSERROR_OK;
}
 
content_type amiga_plugin_hack_content_type(void)
{
        return CONTENT_PLUGIN;
}
 
void amiga_plugin_hack_execute(struct hlcache_handle *c)
{
        lwc_string *plugincmd;
        char *full_cmd;
        BPTR in, out;
 
        if(c == NULL) return;
 
        plugincmd = ami_mime_content_to_cmd(c);
        if(plugincmd == NULL) return;
 
        full_cmd = ASPrintf("%s %s", lwc_string_data(plugincmd), nsurl_access(hlcache_handle_get_url(c)));
 
        if(full_cmd)
        {
#ifdef __amigaos4__
                NSLOG(netsurf, INFO, "Attempting to execute %s", full_cmd);
 
                in = Open("NIL:", MODE_OLDFILE);
                out = Open("NIL:", MODE_NEWFILE);
 
                SystemTags(full_cmd,
                                SYS_Input, in,
                                SYS_Output, out,
                                SYS_Error, out,
                                SYS_Asynch, TRUE,
                                NP_Name, "NetSurf External Process",
                                TAG_DONE);
 
                FreeVec(full_cmd);
#endif
        }
}