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Diffstat (limited to 'platform/web/display_server_web.cpp')
| -rw-r--r-- | platform/web/display_server_web.cpp | 1060 |
1 files changed, 1060 insertions, 0 deletions
diff --git a/platform/web/display_server_web.cpp b/platform/web/display_server_web.cpp new file mode 100644 index 0000000000..b36f9d14a4 --- /dev/null +++ b/platform/web/display_server_web.cpp @@ -0,0 +1,1060 @@ +/*************************************************************************/ +/* display_server_web.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#include "display_server_web.h" + +#ifdef GLES3_ENABLED +#include "drivers/gles3/rasterizer_gles3.h" +#endif +#include "platform/web/os_web.h" +#include "servers/rendering/dummy/rasterizer_dummy.h" + +#include <emscripten.h> +#include <png.h> + +#include "dom_keys.inc" +#include "godot_js.h" + +#define DOM_BUTTON_LEFT 0 +#define DOM_BUTTON_MIDDLE 1 +#define DOM_BUTTON_RIGHT 2 +#define DOM_BUTTON_XBUTTON1 3 +#define DOM_BUTTON_XBUTTON2 4 + +DisplayServerWeb *DisplayServerWeb::get_singleton() { + return static_cast<DisplayServerWeb *>(DisplayServer::get_singleton()); +} + +// Window (canvas) +bool DisplayServerWeb::check_size_force_redraw() { + return godot_js_display_size_update() != 0; +} + +void DisplayServerWeb::fullscreen_change_callback(int p_fullscreen) { + DisplayServerWeb *display = get_singleton(); + if (p_fullscreen) { + display->window_mode = WINDOW_MODE_FULLSCREEN; + } else { + display->window_mode = WINDOW_MODE_WINDOWED; + } +} + +// Drag and drop callback. +void DisplayServerWeb::drop_files_js_callback(char **p_filev, int p_filec) { + DisplayServerWeb *ds = get_singleton(); + if (!ds) { + ERR_FAIL_MSG("Unable to drop files because the DisplayServer is not active"); + } + if (ds->drop_files_callback.is_null()) { + return; + } + Vector<String> files; + for (int i = 0; i < p_filec; i++) { + files.push_back(String::utf8(p_filev[i])); + } + Variant v = files; + Variant *vp = &v; + Variant ret; + Callable::CallError ce; + ds->drop_files_callback.callp((const Variant **)&vp, 1, ret, ce); +} + +// Web quit request callback. +void DisplayServerWeb::request_quit_callback() { + DisplayServerWeb *ds = get_singleton(); + if (ds && !ds->window_event_callback.is_null()) { + Variant event = int(DisplayServer::WINDOW_EVENT_CLOSE_REQUEST); + Variant *eventp = &event; + Variant ret; + Callable::CallError ce; + ds->window_event_callback.callp((const Variant **)&eventp, 1, ret, ce); + } +} + +// Keys + +void DisplayServerWeb::dom2godot_mod(Ref<InputEventWithModifiers> ev, int p_mod) { + ev->set_shift_pressed(p_mod & 1); + ev->set_alt_pressed(p_mod & 2); + ev->set_ctrl_pressed(p_mod & 4); + ev->set_meta_pressed(p_mod & 8); +} + +void DisplayServerWeb::key_callback(int p_pressed, int p_repeat, int p_modifiers) { + DisplayServerWeb *ds = get_singleton(); + JSKeyEvent &key_event = ds->key_event; + // Resume audio context after input in case autoplay was denied. + OS_Web::get_singleton()->resume_audio(); + + Ref<InputEventKey> ev; + ev.instantiate(); + ev->set_echo(p_repeat); + ev->set_keycode(dom_code2godot_scancode(key_event.code, key_event.key, false)); + ev->set_physical_keycode(dom_code2godot_scancode(key_event.code, key_event.key, true)); + ev->set_pressed(p_pressed); + dom2godot_mod(ev, p_modifiers); + + String unicode = String::utf8(key_event.key); + if (unicode.length() == 1) { + ev->set_unicode(unicode[0]); + } + Input::get_singleton()->parse_input_event(ev); + + // Make sure to flush all events so we can call restricted APIs inside the event. + Input::get_singleton()->flush_buffered_events(); +} + +// Mouse + +int DisplayServerWeb::mouse_button_callback(int p_pressed, int p_button, double p_x, double p_y, int p_modifiers) { + DisplayServerWeb *ds = get_singleton(); + + Point2 pos(p_x, p_y); + Ref<InputEventMouseButton> ev; + ev.instantiate(); + ev->set_position(pos); + ev->set_global_position(pos); + ev->set_pressed(p_pressed); + dom2godot_mod(ev, p_modifiers); + + switch (p_button) { + case DOM_BUTTON_LEFT: + ev->set_button_index(MouseButton::LEFT); + break; + case DOM_BUTTON_MIDDLE: + ev->set_button_index(MouseButton::MIDDLE); + break; + case DOM_BUTTON_RIGHT: + ev->set_button_index(MouseButton::RIGHT); + break; + case DOM_BUTTON_XBUTTON1: + ev->set_button_index(MouseButton::MB_XBUTTON1); + break; + case DOM_BUTTON_XBUTTON2: + ev->set_button_index(MouseButton::MB_XBUTTON2); + break; + default: + return false; + } + + if (p_pressed) { + uint64_t diff = (OS::get_singleton()->get_ticks_usec() / 1000) - ds->last_click_ms; + + if (ev->get_button_index() == ds->last_click_button_index) { + if (diff < 400 && Point2(ds->last_click_pos).distance_to(ev->get_position()) < 5) { + ds->last_click_ms = 0; + ds->last_click_pos = Point2(-100, -100); + ds->last_click_button_index = MouseButton::NONE; + ev->set_double_click(true); + } + + } else { + ds->last_click_button_index = ev->get_button_index(); + } + + if (!ev->is_double_click()) { + ds->last_click_ms += diff; + ds->last_click_pos = ev->get_position(); + } + } + + MouseButton mask = Input::get_singleton()->get_mouse_button_mask(); + MouseButton button_flag = mouse_button_to_mask(ev->get_button_index()); + if (ev->is_pressed()) { + mask |= button_flag; + } else if ((mask & button_flag) != MouseButton::NONE) { + mask &= ~button_flag; + } else { + // Received release event, but press was outside the canvas, so ignore. + return false; + } + ev->set_button_mask(mask); + + Input::get_singleton()->parse_input_event(ev); + // Resume audio context after input in case autoplay was denied. + OS_Web::get_singleton()->resume_audio(); + + // Make sure to flush all events so we can call restricted APIs inside the event. + Input::get_singleton()->flush_buffered_events(); + + // Prevent multi-click text selection and wheel-click scrolling anchor. + // Context menu is prevented through contextmenu event. + return true; +} + +void DisplayServerWeb::mouse_move_callback(double p_x, double p_y, double p_rel_x, double p_rel_y, int p_modifiers) { + MouseButton input_mask = Input::get_singleton()->get_mouse_button_mask(); + // For motion outside the canvas, only read mouse movement if dragging + // started inside the canvas; imitating desktop app behaviour. + if (!get_singleton()->cursor_inside_canvas && input_mask == MouseButton::NONE) { + return; + } + + Point2 pos(p_x, p_y); + Ref<InputEventMouseMotion> ev; + ev.instantiate(); + dom2godot_mod(ev, p_modifiers); + ev->set_button_mask(input_mask); + + ev->set_position(pos); + ev->set_global_position(pos); + + ev->set_relative(Vector2(p_rel_x, p_rel_y)); + ev->set_velocity(Input::get_singleton()->get_last_mouse_velocity()); + + Input::get_singleton()->parse_input_event(ev); +} + +// Cursor +const char *DisplayServerWeb::godot2dom_cursor(DisplayServer::CursorShape p_shape) { + switch (p_shape) { + case DisplayServer::CURSOR_ARROW: + return "default"; + case DisplayServer::CURSOR_IBEAM: + return "text"; + case DisplayServer::CURSOR_POINTING_HAND: + return "pointer"; + case DisplayServer::CURSOR_CROSS: + return "crosshair"; + case DisplayServer::CURSOR_WAIT: + return "wait"; + case DisplayServer::CURSOR_BUSY: + return "progress"; + case DisplayServer::CURSOR_DRAG: + return "grab"; + case DisplayServer::CURSOR_CAN_DROP: + return "grabbing"; + case DisplayServer::CURSOR_FORBIDDEN: + return "no-drop"; + case DisplayServer::CURSOR_VSIZE: + return "ns-resize"; + case DisplayServer::CURSOR_HSIZE: + return "ew-resize"; + case DisplayServer::CURSOR_BDIAGSIZE: + return "nesw-resize"; + case DisplayServer::CURSOR_FDIAGSIZE: + return "nwse-resize"; + case DisplayServer::CURSOR_MOVE: + return "move"; + case DisplayServer::CURSOR_VSPLIT: + return "row-resize"; + case DisplayServer::CURSOR_HSPLIT: + return "col-resize"; + case DisplayServer::CURSOR_HELP: + return "help"; + default: + return "default"; + } +} + +bool DisplayServerWeb::tts_is_speaking() const { + return godot_js_tts_is_speaking(); +} + +bool DisplayServerWeb::tts_is_paused() const { + return godot_js_tts_is_paused(); +} + +void DisplayServerWeb::update_voices_callback(int p_size, const char **p_voice) { + get_singleton()->voices.clear(); + for (int i = 0; i < p_size; i++) { + Vector<String> tokens = String::utf8(p_voice[i]).split(";", true, 2); + if (tokens.size() == 2) { + Dictionary voice_d; + voice_d["name"] = tokens[1]; + voice_d["id"] = tokens[1]; + voice_d["language"] = tokens[0]; + get_singleton()->voices.push_back(voice_d); + } + } +} + +TypedArray<Dictionary> DisplayServerWeb::tts_get_voices() const { + godot_js_tts_get_voices(update_voices_callback); + return voices; +} + +void DisplayServerWeb::tts_speak(const String &p_text, const String &p_voice, int p_volume, float p_pitch, float p_rate, int p_utterance_id, bool p_interrupt) { + if (p_interrupt) { + tts_stop(); + } + + if (p_text.is_empty()) { + tts_post_utterance_event(DisplayServer::TTS_UTTERANCE_CANCELED, p_utterance_id); + return; + } + + CharString string = p_text.utf8(); + utterance_ids[p_utterance_id] = string; + + godot_js_tts_speak(string.get_data(), p_voice.utf8().get_data(), CLAMP(p_volume, 0, 100), CLAMP(p_pitch, 0.f, 2.f), CLAMP(p_rate, 0.1f, 10.f), p_utterance_id, DisplayServerWeb::_js_utterance_callback); +} + +void DisplayServerWeb::tts_pause() { + godot_js_tts_pause(); +} + +void DisplayServerWeb::tts_resume() { + godot_js_tts_resume(); +} + +void DisplayServerWeb::tts_stop() { + for (const KeyValue<int, CharString> &E : utterance_ids) { + tts_post_utterance_event(DisplayServer::TTS_UTTERANCE_CANCELED, E.key); + } + utterance_ids.clear(); + godot_js_tts_stop(); +} + +void DisplayServerWeb::_js_utterance_callback(int p_event, int p_id, int p_pos) { + DisplayServerWeb *ds = (DisplayServerWeb *)DisplayServer::get_singleton(); + if (ds->utterance_ids.has(p_id)) { + int pos = 0; + if ((TTSUtteranceEvent)p_event == DisplayServer::TTS_UTTERANCE_BOUNDARY) { + // Convert position from UTF-8 to UTF-32. + const CharString &string = ds->utterance_ids[p_id]; + for (int i = 0; i < MIN(p_pos, string.length()); i++) { + uint8_t c = string[i]; + if ((c & 0xe0) == 0xc0) { + i += 1; + } else if ((c & 0xf0) == 0xe0) { + i += 2; + } else if ((c & 0xf8) == 0xf0) { + i += 3; + } + pos++; + } + } else if ((TTSUtteranceEvent)p_event != DisplayServer::TTS_UTTERANCE_STARTED) { + ds->utterance_ids.erase(p_id); + } + ds->tts_post_utterance_event((TTSUtteranceEvent)p_event, p_id, pos); + } +} + +void DisplayServerWeb::cursor_set_shape(CursorShape p_shape) { + ERR_FAIL_INDEX(p_shape, CURSOR_MAX); + if (cursor_shape == p_shape) { + return; + } + cursor_shape = p_shape; + godot_js_display_cursor_set_shape(godot2dom_cursor(cursor_shape)); +} + +DisplayServer::CursorShape DisplayServerWeb::cursor_get_shape() const { + return cursor_shape; +} + +void DisplayServerWeb::cursor_set_custom_image(const Ref<Resource> &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) { + if (p_cursor.is_valid()) { + Ref<Texture2D> texture = p_cursor; + Ref<AtlasTexture> atlas_texture = p_cursor; + Ref<Image> image; + Size2 texture_size; + Rect2 atlas_rect; + + if (texture.is_valid()) { + image = texture->get_image(); + } + + if (!image.is_valid() && atlas_texture.is_valid()) { + texture = atlas_texture->get_atlas(); + + atlas_rect.size.width = texture->get_width(); + atlas_rect.size.height = texture->get_height(); + atlas_rect.position.x = atlas_texture->get_region().position.x; + atlas_rect.position.y = atlas_texture->get_region().position.y; + + texture_size.width = atlas_texture->get_region().size.x; + texture_size.height = atlas_texture->get_region().size.y; + } else if (image.is_valid()) { + texture_size.width = texture->get_width(); + texture_size.height = texture->get_height(); + } + + ERR_FAIL_COND(!texture.is_valid()); + ERR_FAIL_COND(p_hotspot.x < 0 || p_hotspot.y < 0); + ERR_FAIL_COND(texture_size.width > 256 || texture_size.height > 256); + ERR_FAIL_COND(p_hotspot.x > texture_size.width || p_hotspot.y > texture_size.height); + + image = texture->get_image(); + + ERR_FAIL_COND(!image.is_valid()); + + image = image->duplicate(); + + if (atlas_texture.is_valid()) { + image->crop_from_point( + atlas_rect.position.x, + atlas_rect.position.y, + texture_size.width, + texture_size.height); + } + + if (image->get_format() != Image::FORMAT_RGBA8) { + image->convert(Image::FORMAT_RGBA8); + } + + png_image png_meta; + memset(&png_meta, 0, sizeof png_meta); + png_meta.version = PNG_IMAGE_VERSION; + png_meta.width = texture_size.width; + png_meta.height = texture_size.height; + png_meta.format = PNG_FORMAT_RGBA; + + PackedByteArray png; + size_t len; + PackedByteArray data = image->get_data(); + ERR_FAIL_COND(!png_image_write_get_memory_size(png_meta, len, 0, data.ptr(), 0, nullptr)); + + png.resize(len); + ERR_FAIL_COND(!png_image_write_to_memory(&png_meta, png.ptrw(), &len, 0, data.ptr(), 0, nullptr)); + + godot_js_display_cursor_set_custom_shape(godot2dom_cursor(p_shape), png.ptr(), len, p_hotspot.x, p_hotspot.y); + + } else { + godot_js_display_cursor_set_custom_shape(godot2dom_cursor(p_shape), nullptr, 0, 0, 0); + } + + cursor_set_shape(cursor_shape); +} + +// Mouse mode +void DisplayServerWeb::mouse_set_mode(MouseMode p_mode) { + ERR_FAIL_COND_MSG(p_mode == MOUSE_MODE_CONFINED || p_mode == MOUSE_MODE_CONFINED_HIDDEN, "MOUSE_MODE_CONFINED is not supported for the Web platform."); + if (p_mode == mouse_get_mode()) { + return; + } + + if (p_mode == MOUSE_MODE_VISIBLE) { + godot_js_display_cursor_set_visible(1); + godot_js_display_cursor_lock_set(0); + + } else if (p_mode == MOUSE_MODE_HIDDEN) { + godot_js_display_cursor_set_visible(0); + godot_js_display_cursor_lock_set(0); + + } else if (p_mode == MOUSE_MODE_CAPTURED) { + godot_js_display_cursor_set_visible(1); + godot_js_display_cursor_lock_set(1); + } +} + +DisplayServer::MouseMode DisplayServerWeb::mouse_get_mode() const { + if (godot_js_display_cursor_is_hidden()) { + return MOUSE_MODE_HIDDEN; + } + + if (godot_js_display_cursor_is_locked()) { + return MOUSE_MODE_CAPTURED; + } + return MOUSE_MODE_VISIBLE; +} + +Point2i DisplayServerWeb::mouse_get_position() const { + return Input::get_singleton()->get_mouse_position(); +} + +// Wheel +int DisplayServerWeb::mouse_wheel_callback(double p_delta_x, double p_delta_y) { + if (!godot_js_display_canvas_is_focused()) { + if (get_singleton()->cursor_inside_canvas) { + godot_js_display_canvas_focus(); + } else { + return false; + } + } + + Input *input = Input::get_singleton(); + Ref<InputEventMouseButton> ev; + ev.instantiate(); + ev->set_position(input->get_mouse_position()); + ev->set_global_position(ev->get_position()); + + ev->set_shift_pressed(input->is_key_pressed(Key::SHIFT)); + ev->set_alt_pressed(input->is_key_pressed(Key::ALT)); + ev->set_ctrl_pressed(input->is_key_pressed(Key::CTRL)); + ev->set_meta_pressed(input->is_key_pressed(Key::META)); + + if (p_delta_y < 0) { + ev->set_button_index(MouseButton::WHEEL_UP); + } else if (p_delta_y > 0) { + ev->set_button_index(MouseButton::WHEEL_DOWN); + } else if (p_delta_x > 0) { + ev->set_button_index(MouseButton::WHEEL_LEFT); + } else if (p_delta_x < 0) { + ev->set_button_index(MouseButton::WHEEL_RIGHT); + } else { + return false; + } + + // Different browsers give wildly different delta values, and we can't + // interpret deltaMode, so use default value for wheel events' factor. + + MouseButton button_flag = mouse_button_to_mask(ev->get_button_index()); + + ev->set_pressed(true); + ev->set_button_mask(input->get_mouse_button_mask() | button_flag); + input->parse_input_event(ev); + + Ref<InputEventMouseButton> release = ev->duplicate(); + release->set_pressed(false); + release->set_button_mask(MouseButton(input->get_mouse_button_mask() & ~button_flag)); + input->parse_input_event(release); + + return true; +} + +// Touch +void DisplayServerWeb::touch_callback(int p_type, int p_count) { + DisplayServerWeb *ds = get_singleton(); + + const JSTouchEvent &touch_event = ds->touch_event; + for (int i = 0; i < p_count; i++) { + Point2 point(touch_event.coords[i * 2], touch_event.coords[i * 2 + 1]); + if (p_type == 2) { + // touchmove + Ref<InputEventScreenDrag> ev; + ev.instantiate(); + ev->set_index(touch_event.identifier[i]); + ev->set_position(point); + + Point2 &prev = ds->touches[i]; + ev->set_relative(ev->get_position() - prev); + prev = ev->get_position(); + + Input::get_singleton()->parse_input_event(ev); + } else { + // touchstart/touchend + Ref<InputEventScreenTouch> ev; + + // Resume audio context after input in case autoplay was denied. + OS_Web::get_singleton()->resume_audio(); + + ev.instantiate(); + ev->set_index(touch_event.identifier[i]); + ev->set_position(point); + ev->set_pressed(p_type == 0); + ds->touches[i] = point; + + Input::get_singleton()->parse_input_event(ev); + + // Make sure to flush all events so we can call restricted APIs inside the event. + Input::get_singleton()->flush_buffered_events(); + } + } +} + +bool DisplayServerWeb::screen_is_touchscreen(int p_screen) const { + return godot_js_display_touchscreen_is_available(); +} + +// Virtual Keyboard +void DisplayServerWeb::vk_input_text_callback(const char *p_text, int p_cursor) { + DisplayServerWeb *ds = DisplayServerWeb::get_singleton(); + if (!ds || ds->input_text_callback.is_null()) { + return; + } + // Call input_text + Variant event = String::utf8(p_text); + Variant *eventp = &event; + Variant ret; + Callable::CallError ce; + ds->input_text_callback.callp((const Variant **)&eventp, 1, ret, ce); + // Insert key right to reach position. + Input *input = Input::get_singleton(); + Ref<InputEventKey> k; + for (int i = 0; i < p_cursor; i++) { + k.instantiate(); + k->set_pressed(true); + k->set_echo(false); + k->set_keycode(Key::RIGHT); + input->parse_input_event(k); + k.instantiate(); + k->set_pressed(false); + k->set_echo(false); + k->set_keycode(Key::RIGHT); + input->parse_input_event(k); + } +} + +void DisplayServerWeb::virtual_keyboard_show(const String &p_existing_text, const Rect2 &p_screen_rect, VirtualKeyboardType p_type, int p_max_input_length, int p_cursor_start, int p_cursor_end) { + godot_js_display_vk_show(p_existing_text.utf8().get_data(), p_type, p_cursor_start, p_cursor_end); +} + +void DisplayServerWeb::virtual_keyboard_hide() { + godot_js_display_vk_hide(); +} + +void DisplayServerWeb::window_blur_callback() { + Input::get_singleton()->release_pressed_events(); +} + +// Gamepad +void DisplayServerWeb::gamepad_callback(int p_index, int p_connected, const char *p_id, const char *p_guid) { + Input *input = Input::get_singleton(); + if (p_connected) { + input->joy_connection_changed(p_index, true, String::utf8(p_id), String::utf8(p_guid)); + } else { + input->joy_connection_changed(p_index, false, ""); + } +} + +void DisplayServerWeb::process_joypads() { + Input *input = Input::get_singleton(); + int32_t pads = godot_js_input_gamepad_sample_count(); + int32_t s_btns_num = 0; + int32_t s_axes_num = 0; + int32_t s_standard = 0; + float s_btns[16]; + float s_axes[10]; + for (int idx = 0; idx < pads; idx++) { + int err = godot_js_input_gamepad_sample_get(idx, s_btns, &s_btns_num, s_axes, &s_axes_num, &s_standard); + if (err) { + continue; + } + for (int b = 0; b < s_btns_num; b++) { + // Buttons 6 and 7 in the standard mapping need to be + // axis to be handled as JoyAxis::TRIGGER by Godot. + if (s_standard && (b == 6 || b == 7)) { + input->joy_axis(idx, (JoyAxis)b, s_btns[b]); + } else { + input->joy_button(idx, (JoyButton)b, s_btns[b]); + } + } + for (int a = 0; a < s_axes_num; a++) { + input->joy_axis(idx, (JoyAxis)a, s_axes[a]); + } + } +} + +Vector<String> DisplayServerWeb::get_rendering_drivers_func() { + Vector<String> drivers; +#ifdef GLES3_ENABLED + drivers.push_back("opengl3"); +#endif + return drivers; +} + +// Clipboard +void DisplayServerWeb::update_clipboard_callback(const char *p_text) { + get_singleton()->clipboard = String::utf8(p_text); +} + +void DisplayServerWeb::clipboard_set(const String &p_text) { + clipboard = p_text; + int err = godot_js_display_clipboard_set(p_text.utf8().get_data()); + ERR_FAIL_COND_MSG(err, "Clipboard API is not supported."); +} + +String DisplayServerWeb::clipboard_get() const { + godot_js_display_clipboard_get(update_clipboard_callback); + return clipboard; +} + +void DisplayServerWeb::send_window_event_callback(int p_notification) { + DisplayServerWeb *ds = get_singleton(); + if (!ds) { + return; + } + if (p_notification == DisplayServer::WINDOW_EVENT_MOUSE_ENTER || p_notification == DisplayServer::WINDOW_EVENT_MOUSE_EXIT) { + ds->cursor_inside_canvas = p_notification == DisplayServer::WINDOW_EVENT_MOUSE_ENTER; + } + if (!ds->window_event_callback.is_null()) { + Variant event = int(p_notification); + Variant *eventp = &event; + Variant ret; + Callable::CallError ce; + ds->window_event_callback.callp((const Variant **)&eventp, 1, ret, ce); + } +} + +void DisplayServerWeb::set_icon(const Ref<Image> &p_icon) { + ERR_FAIL_COND(p_icon.is_null()); + Ref<Image> icon = p_icon; + if (icon->is_compressed()) { + icon = icon->duplicate(); + ERR_FAIL_COND(icon->decompress() != OK); + } + if (icon->get_format() != Image::FORMAT_RGBA8) { + if (icon == p_icon) { + icon = icon->duplicate(); + } + icon->convert(Image::FORMAT_RGBA8); + } + + png_image png_meta; + memset(&png_meta, 0, sizeof png_meta); + png_meta.version = PNG_IMAGE_VERSION; + png_meta.width = icon->get_width(); + png_meta.height = icon->get_height(); + png_meta.format = PNG_FORMAT_RGBA; + + PackedByteArray png; + size_t len; + PackedByteArray data = icon->get_data(); + ERR_FAIL_COND(!png_image_write_get_memory_size(png_meta, len, 0, data.ptr(), 0, nullptr)); + + png.resize(len); + ERR_FAIL_COND(!png_image_write_to_memory(&png_meta, png.ptrw(), &len, 0, data.ptr(), 0, nullptr)); + + godot_js_display_window_icon_set(png.ptr(), len); +} + +void DisplayServerWeb::_dispatch_input_event(const Ref<InputEvent> &p_event) { + Callable cb = get_singleton()->input_event_callback; + if (!cb.is_null()) { + Variant ev = p_event; + Variant *evp = &ev; + Variant ret; + Callable::CallError ce; + cb.callp((const Variant **)&evp, 1, ret, ce); + } +} + +DisplayServer *DisplayServerWeb::create_func(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Size2i &p_resolution, Error &r_error) { + return memnew(DisplayServerWeb(p_rendering_driver, p_window_mode, p_vsync_mode, p_flags, p_resolution, r_error)); +} + +DisplayServerWeb::DisplayServerWeb(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Size2i &p_resolution, Error &r_error) { + r_error = OK; // Always succeeds for now. + + // Ensure the canvas ID. + godot_js_config_canvas_id_get(canvas_id, 256); + + // Handle contextmenu, webglcontextlost + godot_js_display_setup_canvas(p_resolution.x, p_resolution.y, (p_window_mode == WINDOW_MODE_FULLSCREEN || p_window_mode == WINDOW_MODE_EXCLUSIVE_FULLSCREEN), OS::get_singleton()->is_hidpi_allowed() ? 1 : 0); + + // Check if it's windows. + swap_cancel_ok = godot_js_display_is_swap_ok_cancel() == 1; + + // Expose method for requesting quit. + godot_js_os_request_quit_cb(request_quit_callback); + +#ifdef GLES3_ENABLED + // TODO "vulkan" defaults to webgl2 for now. + bool wants_webgl2 = p_rendering_driver == "opengl3" || p_rendering_driver == "vulkan"; + bool webgl2_init_failed = wants_webgl2 && !godot_js_display_has_webgl(2); + if (wants_webgl2 && !webgl2_init_failed) { + EmscriptenWebGLContextAttributes attributes; + emscripten_webgl_init_context_attributes(&attributes); + //attributes.alpha = GLOBAL_GET("display/window/per_pixel_transparency/allowed"); + attributes.alpha = true; + attributes.antialias = false; + attributes.majorVersion = 2; + + webgl_ctx = emscripten_webgl_create_context(canvas_id, &attributes); + if (emscripten_webgl_make_context_current(webgl_ctx) != EMSCRIPTEN_RESULT_SUCCESS) { + webgl2_init_failed = true; + } else { + RasterizerGLES3::make_current(); + } + } + if (webgl2_init_failed) { + OS::get_singleton()->alert("Your browser does not seem to support WebGL2. Please update your browser version.", + "Unable to initialize video driver"); + } + if (!wants_webgl2 || webgl2_init_failed) { + RasterizerDummy::make_current(); + } +#else + RasterizerDummy::make_current(); +#endif + + // JS Input interface (js/libs/library_godot_input.js) + godot_js_input_mouse_button_cb(&DisplayServerWeb::mouse_button_callback); + godot_js_input_mouse_move_cb(&DisplayServerWeb::mouse_move_callback); + godot_js_input_mouse_wheel_cb(&DisplayServerWeb::mouse_wheel_callback); + godot_js_input_touch_cb(&DisplayServerWeb::touch_callback, touch_event.identifier, touch_event.coords); + godot_js_input_key_cb(&DisplayServerWeb::key_callback, key_event.code, key_event.key); + godot_js_input_paste_cb(update_clipboard_callback); + godot_js_input_drop_files_cb(drop_files_js_callback); + godot_js_input_gamepad_cb(&DisplayServerWeb::gamepad_callback); + + // JS Display interface (js/libs/library_godot_display.js) + godot_js_display_fullscreen_cb(&DisplayServerWeb::fullscreen_change_callback); + godot_js_display_window_blur_cb(&window_blur_callback); + godot_js_display_notification_cb(&send_window_event_callback, + WINDOW_EVENT_MOUSE_ENTER, + WINDOW_EVENT_MOUSE_EXIT, + WINDOW_EVENT_FOCUS_IN, + WINDOW_EVENT_FOCUS_OUT); + godot_js_display_vk_cb(&vk_input_text_callback); + + Input::get_singleton()->set_event_dispatch_function(_dispatch_input_event); +} + +DisplayServerWeb::~DisplayServerWeb() { +#ifdef GLES3_ENABLED + if (webgl_ctx) { + emscripten_webgl_commit_frame(); + emscripten_webgl_destroy_context(webgl_ctx); + } +#endif +} + +bool DisplayServerWeb::has_feature(Feature p_feature) const { + switch (p_feature) { + //case FEATURE_GLOBAL_MENU: + //case FEATURE_HIDPI: + //case FEATURE_IME: + case FEATURE_ICON: + case FEATURE_CLIPBOARD: + case FEATURE_CURSOR_SHAPE: + case FEATURE_CUSTOM_CURSOR_SHAPE: + case FEATURE_MOUSE: + case FEATURE_TOUCHSCREEN: + return true; + //case FEATURE_MOUSE_WARP: + //case FEATURE_NATIVE_DIALOG: + //case FEATURE_NATIVE_ICON: + //case FEATURE_WINDOW_TRANSPARENCY: + //case FEATURE_KEEP_SCREEN_ON: + //case FEATURE_ORIENTATION: + case FEATURE_VIRTUAL_KEYBOARD: + return godot_js_display_vk_available() != 0; + case FEATURE_TEXT_TO_SPEECH: + return godot_js_display_tts_available() != 0; + default: + return false; + } +} + +void DisplayServerWeb::register_web_driver() { + register_create_function("web", create_func, get_rendering_drivers_func); +} + +String DisplayServerWeb::get_name() const { + return "web"; +} + +int DisplayServerWeb::get_screen_count() const { + return 1; +} + +Point2i DisplayServerWeb::screen_get_position(int p_screen) const { + return Point2i(); // TODO offsetX/Y? +} + +Size2i DisplayServerWeb::screen_get_size(int p_screen) const { + int size[2]; + godot_js_display_screen_size_get(size, size + 1); + return Size2(size[0], size[1]); +} + +Rect2i DisplayServerWeb::screen_get_usable_rect(int p_screen) const { + int size[2]; + godot_js_display_window_size_get(size, size + 1); + return Rect2i(0, 0, size[0], size[1]); +} + +int DisplayServerWeb::screen_get_dpi(int p_screen) const { + return godot_js_display_screen_dpi_get(); +} + +float DisplayServerWeb::screen_get_scale(int p_screen) const { + return godot_js_display_pixel_ratio_get(); +} + +float DisplayServerWeb::screen_get_refresh_rate(int p_screen) const { + return SCREEN_REFRESH_RATE_FALLBACK; // Web doesn't have much of a need for the screen refresh rate, and there's no native way to do so. +} + +Vector<DisplayServer::WindowID> DisplayServerWeb::get_window_list() const { + Vector<WindowID> ret; + ret.push_back(MAIN_WINDOW_ID); + return ret; +} + +DisplayServerWeb::WindowID DisplayServerWeb::get_window_at_screen_position(const Point2i &p_position) const { + return MAIN_WINDOW_ID; +} + +void DisplayServerWeb::window_attach_instance_id(ObjectID p_instance, WindowID p_window) { + window_attached_instance_id = p_instance; +} + +ObjectID DisplayServerWeb::window_get_attached_instance_id(WindowID p_window) const { + return window_attached_instance_id; +} + +void DisplayServerWeb::window_set_rect_changed_callback(const Callable &p_callable, WindowID p_window) { + // Not supported. +} + +void DisplayServerWeb::window_set_window_event_callback(const Callable &p_callable, WindowID p_window) { + window_event_callback = p_callable; +} + +void DisplayServerWeb::window_set_input_event_callback(const Callable &p_callable, WindowID p_window) { + input_event_callback = p_callable; +} + +void DisplayServerWeb::window_set_input_text_callback(const Callable &p_callable, WindowID p_window) { + input_text_callback = p_callable; +} + +void DisplayServerWeb::window_set_drop_files_callback(const Callable &p_callable, WindowID p_window) { + drop_files_callback = p_callable; +} + +void DisplayServerWeb::window_set_title(const String &p_title, WindowID p_window) { + godot_js_display_window_title_set(p_title.utf8().get_data()); +} + +int DisplayServerWeb::window_get_current_screen(WindowID p_window) const { + return 1; +} + +void DisplayServerWeb::window_set_current_screen(int p_screen, WindowID p_window) { + // Not implemented. +} + +Point2i DisplayServerWeb::window_get_position(WindowID p_window) const { + return Point2i(); // TODO Does this need implementation? +} + +void DisplayServerWeb::window_set_position(const Point2i &p_position, WindowID p_window) { + // Not supported. +} + +void DisplayServerWeb::window_set_transient(WindowID p_window, WindowID p_parent) { + // Not supported. +} + +void DisplayServerWeb::window_set_max_size(const Size2i p_size, WindowID p_window) { + // Not supported. +} + +Size2i DisplayServerWeb::window_get_max_size(WindowID p_window) const { + return Size2i(); +} + +void DisplayServerWeb::window_set_min_size(const Size2i p_size, WindowID p_window) { + // Not supported. +} + +Size2i DisplayServerWeb::window_get_min_size(WindowID p_window) const { + return Size2i(); +} + +void DisplayServerWeb::window_set_size(const Size2i p_size, WindowID p_window) { + godot_js_display_desired_size_set(p_size.x, p_size.y); +} + +Size2i DisplayServerWeb::window_get_size(WindowID p_window) const { + int size[2]; + godot_js_display_window_size_get(size, size + 1); + return Size2i(size[0], size[1]); +} + +Size2i DisplayServerWeb::window_get_real_size(WindowID p_window) const { + return window_get_size(p_window); +} + +void DisplayServerWeb::window_set_mode(WindowMode p_mode, WindowID p_window) { + if (window_mode == p_mode) { + return; + } + + switch (p_mode) { + case WINDOW_MODE_WINDOWED: { + if (window_mode == WINDOW_MODE_FULLSCREEN) { + godot_js_display_fullscreen_exit(); + } + window_mode = WINDOW_MODE_WINDOWED; + } break; + case WINDOW_MODE_EXCLUSIVE_FULLSCREEN: + case WINDOW_MODE_FULLSCREEN: { + int result = godot_js_display_fullscreen_request(); + ERR_FAIL_COND_MSG(result, "The request was denied. Remember that enabling fullscreen is only possible from an input callback for the Web platform."); + } break; + case WINDOW_MODE_MAXIMIZED: + case WINDOW_MODE_MINIMIZED: + WARN_PRINT("WindowMode MAXIMIZED and MINIMIZED are not supported in Web platform."); + break; + default: + break; + } +} + +DisplayServerWeb::WindowMode DisplayServerWeb::window_get_mode(WindowID p_window) const { + return window_mode; +} + +bool DisplayServerWeb::window_is_maximize_allowed(WindowID p_window) const { + return false; +} + +void DisplayServerWeb::window_set_flag(WindowFlags p_flag, bool p_enabled, WindowID p_window) { + // Not supported. +} + +bool DisplayServerWeb::window_get_flag(WindowFlags p_flag, WindowID p_window) const { + return false; +} + +void DisplayServerWeb::window_request_attention(WindowID p_window) { + // Not supported. +} + +void DisplayServerWeb::window_move_to_foreground(WindowID p_window) { + // Not supported. +} + +bool DisplayServerWeb::window_can_draw(WindowID p_window) const { + return true; +} + +bool DisplayServerWeb::can_any_window_draw() const { + return true; +} + +void DisplayServerWeb::process_events() { + Input::get_singleton()->flush_buffered_events(); + if (godot_js_input_gamepad_sample() == OK) { + process_joypads(); + } +} + +int DisplayServerWeb::get_current_video_driver() const { + return 1; +} + +bool DisplayServerWeb::get_swap_cancel_ok() { + return swap_cancel_ok; +} + +void DisplayServerWeb::swap_buffers() { +#ifdef GLES3_ENABLED + if (webgl_ctx) { + emscripten_webgl_commit_frame(); + } +#endif +} |