/*
 * Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
 *
 * 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/>.
 */

#import "cocoa/HistoryView.h"
#import "cocoa/font.h"
#import "cocoa/coordinates.h"
#import "cocoa/plotter.h"
#import "cocoa/LocalHistoryController.h"
#import "cocoa/BrowserView.h"
#import "utils/errors.h"
#import "netsurf/core_window.h"
#import "desktop/browser_history.h"
#import "desktop/local_history.h"
#import "netsurf/plotters.h"

@interface HistoryView () {
    struct local_history_session *_session;
}

@property (nonatomic) NSMutableArray *toolTips;
@property (readwrite, nonatomic) NSSize size;

@end

static nserror invalidate(struct core_window *cw, const struct rect *rect)
{
    return NSERROR_NOT_IMPLEMENTED;
}

static void update_size(struct core_window *cw, int width, int height)
{
    HistoryView *view = (__bridge HistoryView *)cw;
    NSSize size = cocoa_size(width, height);
    view.size = size;
}

static void scroll_visible(struct core_window *cw, const struct rect *r)
{
}

static void get_window_dimensions(struct core_window *cw, int *width, int *height)
{
}

static void drag_status(struct core_window *cw, core_window_drag_status ds)
{
}

static struct core_window_callback_table history_view_table = {
    .invalidate = invalidate,
    .update_size = update_size,
    .scroll_visible = scroll_visible,
    .get_window_dimensions = get_window_dimensions,
    .drag_status = drag_status
};

@implementation HistoryView

- (void)updateHistory
{
    if (_session) {
        local_history_set(_session, self.browser.browser);
    } else {
        local_history_init(&history_view_table, (__bridge void *)self, self.browser.browser, &_session);
    }
    
    self.frameSize = self.size;
}

- (void)dealloc
{
    if (_session) {
        local_history_fini(_session);
    }
}

- (void)drawRect:(NSRect)rect
{
    if (!_session) return;

    struct redraw_context context = {
        .interactive = true,
        .background_images = false,
        .plot = &cocoa_plotters,
    };

    cocoa_set_clip(rect);

    struct rect clipRect = {
        .x0 = cocoa_pt_to_px(CGRectGetMinX(rect)),
        .y0 = cocoa_pt_to_px(CGRectGetMinY(rect)),
        .x1 = cocoa_pt_to_px(CGRectGetMaxX(rect)),
        .y1 = cocoa_pt_to_px(CGRectGetMaxY(rect))
    };
    local_history_redraw(_session, 0, 0, &clipRect, &context);
}

- (void)mouseUp:(NSEvent *)theEvent
{
    if (!_session) return;

    CGPoint location = [self convertPoint: theEvent.locationInWindow fromView: nil];

    browser_mouse_state state = BROWSER_MOUSE_PRESS_1;
    if (theEvent.modifierFlags & NSEventModifierFlagCommand) {
        state = BROWSER_MOUSE_PRESS_2;
    }

    nserror res = local_history_mouse_action(_session, state, cocoa_pt_to_px(location.x), cocoa_pt_to_px(location.y));

    if (res == NSERROR_OK) {
        self.browser.historyVisible = NO;
    }
}

- (BOOL)isFlipped
{
    return YES;
}

@end