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+/*
+ * Copyright 2017 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/>.
+ */
+
+#ifndef AMIGA_COREWINDOW_H
+#define AMIGA_COREWINDOW_H
+
+#include "netsurf/core_window.h"
+
+#include "amiga/gui.h" /* need to know the size of ami_generic_window :( */
+#include "amiga/plotters.h"
+
+/**
+ * BOOPSI objects
+ */
+
+enum {
+ GID_CW_WIN = 0, /* window object */
+ GID_CW_MAIN, /* root layout object */
+ GID_CW_DRAW, /* drawing area (space.gadget) */
+ GID_CW_HSCROLL, /* horizontal scroller */
+ GID_CW_VSCROLL, /* vertical scroller */
+ GID_CW_HSCROLLLAYOUT, /* horizontal scroller container*/
+ GID_CW_VSCROLLLAYOUT, /* vertical scroller container */
+ GID_CW_LAST
+};
+
+/**
+ * Amiga core window state
+ */
+struct ami_corewindow {
+ /*
+ * Any variables common to any frontend window would go here.
+ * e.g. drawing area handles, toolkit pointers or other state
+ */
+ struct ami_generic_window w;
+ struct Window *win;
+ Object *objects[GID_CW_LAST];
+
+ struct Hook idcmp_hook;
+ struct timeval lastclick;
+
+ int mouse_state;
+
+ APTR deferred_rects_pool;
+ struct MinList *deferred_rects;
+
+ /** keep track of the scrollbar type we're using */
+ bool in_border_scroll;
+ bool scroll_x_visible;
+ bool scroll_y_visible;
+
+ /** window title, must be allocated wth ami_utf8 function */
+ char *wintitle;
+
+ /** stuff for our off-screen render bitmap */
+ struct gui_globals gg;
+ struct MinList *shared_pens;
+
+ /** drag status set by core */
+ core_window_drag_status drag_status;
+
+ /** table of callbacks for core window operations */
+ struct core_window_callback_table *cb_table;
+
+ /**
+ * callback to draw on drawable area of Amiga core window
+ *
+ * \param ami_cw The Amiga core window structure.
+ * \param x Plot origin (X)
+ * \param r Plot origin (Y)
+ * \param r The rectangle of the window that needs updating.
+ * \param ctx Redraw context
+ * \return NSERROR_OK on success otherwise apropriate error code
+ */
+ nserror (*draw)(struct ami_corewindow *ami_cw, int x, int y, struct rect *r,
+ struct redraw_context *ctx);
+
+ /**
+ * callback for keypress on Amiga core window
+ *
+ * \param ami_cw The Amiga core window structure.
+ * \param nskey The netsurf key code.
+ * \return NSERROR_OK if key processed,
+ * NSERROR_NOT_IMPLEMENTED if key not processed
+ * otherwise apropriate error code
+ */
+ nserror (*key)(struct ami_corewindow *ami_cw, uint32_t nskey);
+
+ /**
+ * callback for mouse event on Amiga core window
+ *
+ * \param ami_cw The Amiga core window structure.
+ * \param mouse_state mouse state
+ * \param x location of event
+ * \param y location of event
+ * \return NSERROR_OK on sucess otherwise apropriate error code.
+ */
+ nserror (*mouse)(struct ami_corewindow *ami_cw, browser_mouse_state mouse_state, int x, int y);
+
+ /**
+ * callback for unknown events on Amiga core window
+ * eg. buttons in the ssl cert 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
+ */
+ BOOL (*event)(struct ami_corewindow *ami_cw, ULONG result);
+
+ /**
+ * callback to close an Amiga core window
+ *
+ * \param ami_cw The Amiga core window structure.
+ */
+ void (*close)(struct ami_corewindow *ami_cw);
+
+};
+
+/**
+ * initialise elements of Amiga core window.
+ *
+ * As a pre-requisite the draw, key and mouse callbacks must be defined
+ *
+ * \param example_cw An Amiga core window structure to initialise
+ * \return NSERROR_OK on successful initialisation otherwise error code.
+ */
+nserror ami_corewindow_init(struct ami_corewindow *ami_cw);
+
+/**
+ * finalise elements of Amiga core window.
+ *
+ * \param ami_cw An Amiga core window structure to finialise
+ * \return NSERROR_OK on successful finalisation otherwise error code.
+ */
+nserror ami_corewindow_fini(struct ami_corewindow *ami_cw);
+
+#endif
+