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/* -*- Mode: Vala; indent-tabs-mode: nil; tab-width: 4 -*-
* -*- coding: utf-8 -*-
*
* Copyright (C) 2011 ~ 2018 Deepin, Inc.
* 2011 ~ 2018 Wang Yong
*
* Author: Wang Yong <wangyong@deepin.com>
* Maintainer: Wang Yong <wangyong@deepin.com>
*
* This program 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, either version 3 of the License, or
* any later version.
*
* This program 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/>.
*/
using Gtk;
using Widgets;
using XUtils;
namespace Widgets {
public class WindowEventArea : Gtk.EventBox {
public FilterDoubleClick? filter_double_click_callback = null;
public Gtk.Container drawing_area;
public Gtk.Widget? child_before_leave;
public bool is_double_clicked = false;
public bool is_press = false;
public double press_x = 0;
public double press_y = 0;
public int double_clicked_max_delay = 150;
public delegate bool FilterDoubleClick(int x, int y);
public WindowEventArea(Gtk.Container area) {
drawing_area = area;
visible_window = false;
add_events(Gdk.EventMask.BUTTON_PRESS_MASK
| Gdk.EventMask.BUTTON_RELEASE_MASK
| Gdk.EventMask.POINTER_MOTION_MASK
| Gdk.EventMask.LEAVE_NOTIFY_MASK);
leave_notify_event.connect((w, e) => {
if (child_before_leave != null) {
var e2 = e.copy();
e2.crossing.window = child_before_leave.get_window();
child_before_leave.get_window().ref();
((Gdk.Event*) e2)->put();
child_before_leave = null;
}
return false;
});
motion_notify_event.connect((w, e) => {
var child = get_child_at_pos(drawing_area, (int) e.x, (int) e.y);
child_before_leave = child;
if (child != null) {
int x, y;
drawing_area.translate_coordinates(child, (int) e.x, (int) e.y, out x, out y);
Gdk.EventMotion* event;
event = (Gdk.EventMotion) new Gdk.Event(Gdk.EventType.MOTION_NOTIFY);
event->window = child.get_window();
event->send_event = 1;
event->time = e.time;
event->x = x;
event->y = y;
event->x_root = e.x_root;
event->y_root = e.y_root;
event->state = e.state;
event->is_hint = e.is_hint;
event->device = e.device;
event->axes = e.axes;
((Gdk.Event*) event)->put();
}
return true;
});
button_press_event.connect((w, e) => {
is_press = true;
e.device.get_position(null, out press_x, out press_y);
GLib.Timeout.add(10, () => {
// Send 'move_window' event to xserver once find user first do drag.
if (is_press) {
int pointer_x, pointer_y;
e.device.get_position(null, out pointer_x, out pointer_y);
if (pointer_x != press_x || pointer_y != press_y) {
pointer_x *= get_scale_factor();
pointer_y *= get_scale_factor();
move_window(this, pointer_x, pointer_y, (int) e.button);
return false;
} else {
return true;
}
} else {
return false;
}
});
var child = get_child_at_pos(drawing_area, (int) e.x, (int) e.y);
if (child != null) {
int x, y;
drawing_area.translate_coordinates(child, (int) e.x, (int) e.y, out x, out y);
Gdk.EventButton* event;
event = (Gdk.EventButton) new Gdk.Event(Gdk.EventType.BUTTON_PRESS);
event->window = child.get_window();
event->send_event = 1;
event->time = e.time;
event->x = x;
event->y = y;
event->x_root = e.x_root;
event->y_root = e.y_root;
event->state = e.state;
event->device = e.device;
event->button = e.button;
((Gdk.Event*) event)->put();
}
if (e.type == Gdk.EventType.BUTTON_PRESS) {
is_double_clicked = true;
// Add timeout to avoid long-long-long time double clicked to cause toggle maximize action.
GLib.Timeout.add(double_clicked_max_delay, () => {
is_double_clicked = false;
return false;
});
} else if (e.type == Gdk.EventType.2BUTTON_PRESS) {
if (is_double_clicked && Utils.is_left_button(e)) {
if (filter_double_click_callback == null || !filter_double_click_callback((int) e.x, (int) e.y)) {
if (this.get_toplevel().get_type().is_a(typeof(Widgets.Window))) {
((Widgets.Window) this.get_toplevel()).toggle_max();
}
}
}
}
return true;
});
button_release_event.connect((w, e) => {
is_press = false;
var child = get_child_at_pos(drawing_area, (int) e.x, (int) e.y);
if (child != null) {
int x, y;
drawing_area.translate_coordinates(child, (int) e.x, (int) e.y, out x, out y);
Gdk.EventButton* event;
event = (Gdk.EventButton) new Gdk.Event(Gdk.EventType.BUTTON_RELEASE);
event->window = child.get_window();
event->send_event = 1;
event->time = e.time;
event->x = x;
event->y = y;
event->x_root = e.x_root;
event->y_root = e.y_root;
event->state = e.state;
event->device = e.device;
event->button = e.button;
((Gdk.Event*) event)->put();
}
return true;
});
}
public Gtk.Widget? get_child_at_pos(Gtk.Container container, int x, int y) {
if (container.get_children().length() > 0) {
foreach (Gtk.Widget child in container.get_children()) {
Gtk.Allocation child_rect;
child.get_allocation(out child_rect);
int child_x, child_y;
child.translate_coordinates(container, 0, 0, out child_x, out child_y);
if (x >= child_x && x <= child_x + child_rect.width && y >= child_y && y <= child_y + child_rect.height) {
if (child.get_type().is_a(typeof(Gtk.Container))) {
return get_child_at_pos((Gtk.Container) child, x - child_x, y - child_y);
} else {
return child;
}
}
}
}
return null;
}
}
}
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