1/*
2 * Copyright 2020 Google LLC
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include <emscripten.h>
9#include <emscripten/bind.h>
10#include "include/core/SkCanvas.h"
11#include "include/core/SkSurface.h"
12#include "tools/skui/InputState.h"
13#include "tools/skui/ModifierKey.h"
14#include "tools/viewer/SKPSlide.h"
15#include "tools/viewer/SampleSlide.h"
16#include "tools/viewer/SvgSlide.h"
17#include <GLES3/gl3.h>
18#include <string>
19
20using namespace emscripten;
21
22static sk_sp<Slide> MakeSlide(std::string name) {
23    if (name == "PathText") {
24        extern Sample* MakePathTextSample();
25        return sk_make_sp<SampleSlide>(MakePathTextSample);
26    }
27    if (name == "TessellatedWedge") {
28        extern Sample* MakeTessellatedWedgeSample();
29        return sk_make_sp<SampleSlide>(MakeTessellatedWedgeSample);
30    }
31    return nullptr;
32}
33
34static sk_sp<Slide> MakeSkpSlide(std::string name, std::string skpData) {
35    auto stream = std::make_unique<SkMemoryStream>(skpData.data(), skpData.size(),
36                                                   /*copyData=*/true);
37    return sk_make_sp<SKPSlide>(SkString(name.c_str()), std::move(stream));
38}
39
40static sk_sp<Slide> MakeSvgSlide(std::string name, std::string svgText) {
41    auto stream = std::make_unique<SkMemoryStream>(svgText.data(), svgText.size(),
42                                                   /*copyData=*/true);
43    return sk_make_sp<SvgSlide>(SkString(name.c_str()), std::move(stream));
44}
45
46EMSCRIPTEN_BINDINGS(Viewer) {
47    function("MakeSlide", &MakeSlide);
48    function("MakeSkpSlide", &MakeSkpSlide);
49    function("MakeSvgSlide", &MakeSvgSlide);
50    class_<Slide>("Slide")
51        .smart_ptr<sk_sp<Slide>>("sk_sp<Slide>")
52        .function("load", &Slide::load)
53        .function("animate", &Slide::animate)
54        .function("draw", optional_override([](Slide& self, SkCanvas& canvas) {
55            self.draw(&canvas);
56        }))
57        .function("onChar", &Slide::onChar)
58        .function("onMouse", &Slide::onMouse);
59    enum_<skui::InputState>("InputState")
60        .value("Down",    skui::InputState::kDown)
61        .value("Up",      skui::InputState::kUp)
62        .value("Move",    skui::InputState::kMove)
63        .value("Right",   skui::InputState::kRight)
64        .value("Left",    skui::InputState::kLeft);
65    enum_<skui::ModifierKey>("ModifierKey")
66        .value("None",          skui::ModifierKey::kNone)
67        .value("Shift",         skui::ModifierKey::kShift)
68        .value("Control",       skui::ModifierKey::kControl)
69        .value("Option",        skui::ModifierKey::kOption)
70        .value("Command",       skui::ModifierKey::kCommand)
71        .value("FirstPress",    skui::ModifierKey::kFirstPress);
72}
73