pageinfo.c

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/*
 * Copyright 2020 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
 * Amiga implementation of page info using core windows.
 */
 
#include <stdint.h>
#include <stdlib.h>
 
#include <proto/intuition.h>
 
#include <classes/window.h>
#include <gadgets/layout.h>
#include <gadgets/scroller.h>
#include <gadgets/space.h>
#include <images/label.h>
 
#include <intuition/icclass.h>
#include <reaction/reaction_macros.h>
 
#include "utils/log.h"
#include "netsurf/keypress.h"
#include "netsurf/plotters.h"
#include "desktop/page-info.h"
#include "utils/messages.h"
#include "utils/nsoption.h"
 
#include "amiga/corewindow.h"
#include "amiga/libs.h"
#include "amiga/pageinfo.h"
#include "amiga/schedule.h"
#include "amiga/utf8.h"
 
 
/**
 * Amiga page info window context
 */
struct ami_pageinfo_window {
        /** Amiga core window context */
        struct ami_corewindow core;
        /** core pageinfo */
        struct page_info *pi;
};
 
/**
 * destroy a previously created pageinfo window
 */
static void
ami_pageinfo_destroy(struct ami_corewindow *ami_cw)
{
        nserror res;
        struct ami_pageinfo_window *pageinfo_win = (struct ami_pageinfo_window *)ami_cw;
        if(pageinfo_win->pi != NULL) {
                res = page_info_destroy(pageinfo_win->pi);
 
                if (res == NSERROR_OK) {
                        pageinfo_win->pi = NULL;
                        ami_corewindow_fini(&pageinfo_win->core); /* closes the window for us */
                }
        }
}
 
/**
 * close pageinfo window (callback)
 */
static void
ami_pageinfo_close_cb(void *p)
{
        ami_pageinfo_destroy((struct ami_corewindow *)p);
}
 
/**
 * callback for unknown events on Amiga core window
 * (result & WMHI_CLASSMASK) gives the class of event (eg. WMHI_GADGETUP)
 * (result & WMHI_GADGETMASK) gives the gadget ID (eg. GID_SSLCERT_ACCEPT)
 *
 * \param ami_cw The Amiga core window structure.
 * \param result event as returned by RA_HandleInput()
 * \return TRUE if window closed during event processing
 */
static BOOL
ami_pageinfo_event(struct ami_corewindow *ami_cw, ULONG result)
{
        if((result & WMHI_CLASSMASK) == WMHI_INACTIVE) {
                /* Window went inactive, so schedule to close it */
                ami_schedule(0, ami_pageinfo_close_cb, ami_cw);
                /* NB: do not return TRUE here as we're still open for now */
        }
        return FALSE;
}
 
/**
 * callback for mouse action for pageinfo on core window
 *
 * \param ami_cw The Amiga core window structure.
 * \param mouse_state netsurf mouse state on event
 * \param x location of event
 * \param y location of event
 * \return NSERROR_OK on success otherwise apropriate error code
 */
static nserror
ami_pageinfo_mouse(struct ami_corewindow *ami_cw,
                                        browser_mouse_state mouse_state,
                                        int x, int y)
{
        bool did_something = false;
        struct ami_pageinfo_window *pageinfo_win = (struct ami_pageinfo_window *)ami_cw;
 
        if(page_info_mouse_action(pageinfo_win->pi, mouse_state, x, y, &did_something) == NSERROR_OK)
                if (did_something == true) {
                        /* Something happened so we need to close ourselves */
                        ami_schedule(0, ami_pageinfo_close_cb, pageinfo_win);
                }
                
        return NSERROR_OK;
}
 
/**
 * callback for keypress for pageinfo on core window
 *
 * \param ami_cw The Amiga core window structure.
 * \param nskey The netsurf key code
 * \return NSERROR_OK on success otherwise apropriate error code
 */
static nserror
ami_pageinfo_key(struct ami_corewindow *ami_cw, uint32_t nskey)
{
        struct ami_pageinfo_window *pageinfo_win = (struct ami_pageinfo_window *)ami_cw;
 
        if (page_info_keypress(pageinfo_win->pi, nskey)) {
                        return NSERROR_OK;
        }
        return NSERROR_NOT_IMPLEMENTED;
}
 
/**
 * callback on draw event for pageinfo on core window
 *
 * \param ami_cw The Amiga core window structure.
 * \param x the x coordinate to draw
 * \param y the y coordinate to draw
 * \param r The rectangle of the window that needs updating.
 * \param ctx The drawing context
 * \return NSERROR_OK on success otherwise apropriate error code
 */
static nserror
ami_pageinfo_draw(struct ami_corewindow *ami_cw, int x, int y, struct rect *r, struct redraw_context *ctx)
{
        struct ami_pageinfo_window *pageinfo_win = (struct ami_pageinfo_window *)ami_cw;
 
        page_info_redraw(pageinfo_win->pi, x, y, r, ctx);
 
        return NSERROR_OK;
}
 
static nserror
ami_pageinfo_create_window(struct ami_pageinfo_window *pageinfo_win, ULONG left, ULONG top)
{
        struct ami_corewindow *ami_cw = (struct ami_corewindow *)&pageinfo_win->core;
        ULONG refresh_mode = WA_SmartRefresh;
        struct Screen *scrn = ami_gui_get_screen();
 
        if(nsoption_bool(window_simple_refresh) == true) {
                refresh_mode = WA_SimpleRefresh;
        }
 
        ami_cw->objects[GID_CW_WIN] = WindowObj,
            WA_ScreenTitle, ami_gui_get_screen_title(),
        WA_Activate, TRUE,
        WA_DepthGadget, FALSE,
        WA_DragBar, FALSE,
        WA_CloseGadget, FALSE,
        WA_SizeGadget, FALSE,
        WA_Borderless, TRUE,
                WA_Left, left,
                WA_Top, top,
                WA_PubScreen, scrn,
                WA_ReportMouse, TRUE,
                refresh_mode, TRUE,
                WA_IDCMP, IDCMP_MOUSEMOVE | IDCMP_MOUSEBUTTONS | IDCMP_NEWSIZE |
                                IDCMP_RAWKEY | IDCMP_IDCMPUPDATE | IDCMP_INACTIVEWINDOW |
                                IDCMP_EXTENDEDMOUSE | IDCMP_SIZEVERIFY | IDCMP_REFRESHWINDOW,
                WINDOW_IDCMPHook, &ami_cw->idcmp_hook,
                WINDOW_IDCMPHookBits, IDCMP_IDCMPUPDATE | IDCMP_EXTENDEDMOUSE |
                                IDCMP_SIZEVERIFY | IDCMP_REFRESHWINDOW,
                WINDOW_SharedPort, ami_gui_get_shared_msgport(),
                WINDOW_UserData, pageinfo_win,
                WINDOW_IconifyGadget, FALSE,
                WINDOW_ParentGroup, ami_cw->objects[GID_CW_MAIN] = LayoutVObj,
                        LAYOUT_AddChild, ami_cw->objects[GID_CW_DRAW] = SpaceObj,
                                GA_ID, GID_CW_DRAW,
                                SPACE_Transparent, TRUE,
                                SPACE_BevelStyle, BVS_BOX,
                                GA_RelVerify, TRUE,
                        SpaceEnd,
                EndGroup,
        EndWindow;
 
        if(ami_cw->objects[GID_CW_WIN] == NULL) {
                return NSERROR_NOMEM;
        }
 
        return NSERROR_OK;
}
 
/* exported interface documented in amiga/pageinfo.h */
nserror ami_pageinfo_open(struct browser_window *bw, ULONG left, ULONG top)
{
        struct ami_pageinfo_window *ncwin;
        nserror res;
        int width, height;
 
        ncwin = calloc(1, sizeof(struct ami_pageinfo_window));
        if (ncwin == NULL) {
                return NSERROR_NOMEM;
        }
 
        ncwin->core.wintitle = ami_utf8_easy((char *)messages_get("PageInfo"));
 
        res = ami_pageinfo_create_window(ncwin, left, top);
        if (res != NSERROR_OK) {
                NSLOG(netsurf, INFO, "Page info init failed");
                ami_utf8_free(ncwin->core.wintitle);
                free(ncwin);
                return res;
        }
 
        /* initialise Amiga core window */
        ncwin->core.draw = ami_pageinfo_draw;
        ncwin->core.key = ami_pageinfo_key;
        ncwin->core.mouse = ami_pageinfo_mouse;
        ncwin->core.close = ami_pageinfo_destroy;
        ncwin->core.event = ami_pageinfo_event;
 
        res = ami_corewindow_init(&ncwin->core);
        if (res != NSERROR_OK) {
                ami_utf8_free(ncwin->core.wintitle);
                DisposeObject(ncwin->core.objects[GID_CW_WIN]);
                free(ncwin);
                return res;
        }
 
        res = page_info_create((struct core_window *)ncwin,
                               bw,
                               &ncwin->pi);
 
        if (res != NSERROR_OK) {
                ami_utf8_free(ncwin->core.wintitle);
                DisposeObject(ncwin->core.objects[GID_CW_WIN]);
                free(ncwin);
                return res;
        }
 
        if(page_info_get_size(ncwin->pi, &width, &height) == NSERROR_OK) {
                /* Set window to the correct size.
                 * TODO: this should really set the size of ncwin->core.objects[GID_CW_DRAW]
                 * and let the window adjust, here we've hardcoded to add 6x4px as that's
                 * what window.class does before v45.
                 */
                SetAttrs(ncwin->core.objects[GID_CW_WIN], WA_InnerWidth, width + 6, WA_InnerHeight, height + 4, TAG_DONE);
        }
 
        return NSERROR_OK;
}