electron/atom/common/native_mate_converters/blink_converter.cc
2017-08-15 16:19:21 +03:00

477 lines
17 KiB
C++

// Copyright (c) 2015 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/common/native_mate_converters/blink_converter.h"
#include <algorithm>
#include <string>
#include <vector>
#include "atom/common/keyboard_util.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "native_mate/dictionary.h"
#include "third_party/WebKit/public/platform/WebInputEvent.h"
#include "third_party/WebKit/public/platform/WebMouseEvent.h"
#include "third_party/WebKit/public/platform/WebMouseWheelEvent.h"
#include "third_party/WebKit/public/web/WebDeviceEmulationParams.h"
#include "third_party/WebKit/public/web/WebFindOptions.h"
#include "ui/base/clipboard/clipboard.h"
#include "ui/events/keycodes/dom/keycode_converter.h"
#include "ui/events/keycodes/keyboard_code_conversion.h"
namespace {
template<typename T>
int VectorToBitArray(const std::vector<T>& vec) {
int bits = 0;
for (const T& item : vec)
bits |= item;
return bits;
}
} // namespace
namespace mate {
template<>
struct Converter<base::char16> {
static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
base::char16* out) {
base::string16 code = base::UTF8ToUTF16(V8ToString(val));
if (code.length() != 1)
return false;
*out = code[0];
return true;
}
};
template<>
struct Converter<blink::WebInputEvent::Type> {
static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
blink::WebInputEvent::Type* out) {
std::string type = base::ToLowerASCII(V8ToString(val));
if (type == "mousedown")
*out = blink::WebInputEvent::kMouseDown;
else if (type == "mouseup")
*out = blink::WebInputEvent::kMouseUp;
else if (type == "mousemove")
*out = blink::WebInputEvent::kMouseMove;
else if (type == "mouseenter")
*out = blink::WebInputEvent::kMouseEnter;
else if (type == "mouseleave")
*out = blink::WebInputEvent::kMouseLeave;
else if (type == "contextmenu")
*out = blink::WebInputEvent::kContextMenu;
else if (type == "mousewheel")
*out = blink::WebInputEvent::kMouseWheel;
else if (type == "keydown")
*out = blink::WebInputEvent::kRawKeyDown;
else if (type == "keyup")
*out = blink::WebInputEvent::kKeyUp;
else if (type == "char")
*out = blink::WebInputEvent::kChar;
else if (type == "touchstart")
*out = blink::WebInputEvent::kTouchStart;
else if (type == "touchmove")
*out = blink::WebInputEvent::kTouchMove;
else if (type == "touchend")
*out = blink::WebInputEvent::kTouchEnd;
else if (type == "touchcancel")
*out = blink::WebInputEvent::kTouchCancel;
return true;
}
};
template<>
struct Converter<blink::WebMouseEvent::Button> {
static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
blink::WebMouseEvent::Button* out) {
std::string button = base::ToLowerASCII(V8ToString(val));
if (button == "left")
*out = blink::WebMouseEvent::Button::kLeft;
else if (button == "middle")
*out = blink::WebMouseEvent::Button::kMiddle;
else if (button == "right")
*out = blink::WebMouseEvent::Button::kRight;
else
return false;
return true;
}
};
template<>
struct Converter<blink::WebInputEvent::Modifiers> {
static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
blink::WebInputEvent::Modifiers* out) {
std::string modifier = base::ToLowerASCII(V8ToString(val));
if (modifier == "shift")
*out = blink::WebInputEvent::kShiftKey;
else if (modifier == "control" || modifier == "ctrl")
*out = blink::WebInputEvent::kControlKey;
else if (modifier == "alt")
*out = blink::WebInputEvent::kAltKey;
else if (modifier == "meta" || modifier == "command" || modifier == "cmd")
*out = blink::WebInputEvent::kMetaKey;
else if (modifier == "iskeypad")
*out = blink::WebInputEvent::kIsKeyPad;
else if (modifier == "isautorepeat")
*out = blink::WebInputEvent::kIsAutoRepeat;
else if (modifier == "leftbuttondown")
*out = blink::WebInputEvent::kLeftButtonDown;
else if (modifier == "middlebuttondown")
*out = blink::WebInputEvent::kMiddleButtonDown;
else if (modifier == "rightbuttondown")
*out = blink::WebInputEvent::kRightButtonDown;
else if (modifier == "capslock")
*out = blink::WebInputEvent::kCapsLockOn;
else if (modifier == "numlock")
*out = blink::WebInputEvent::kNumLockOn;
else if (modifier == "left")
*out = blink::WebInputEvent::kIsLeft;
else if (modifier == "right")
*out = blink::WebInputEvent::kIsRight;
return true;
}
};
int GetWebInputEventType(v8::Isolate* isolate, v8::Local<v8::Value> val) {
blink::WebInputEvent::Type type = blink::WebInputEvent::kUndefined;
mate::Dictionary dict;
ConvertFromV8(isolate, val, &dict) && dict.Get("type", &type);
return type;
}
bool Converter<blink::WebInputEvent>::FromV8(
v8::Isolate* isolate, v8::Local<v8::Value> val,
blink::WebInputEvent* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
blink::WebInputEvent::Type type;
if (!dict.Get("type", &type))
return false;
out->SetType(type);
std::vector<blink::WebInputEvent::Modifiers> modifiers;
if (dict.Get("modifiers", &modifiers))
out->SetModifiers(VectorToBitArray(modifiers));
out->SetTimeStampSeconds(base::Time::Now().ToDoubleT());
return true;
}
bool Converter<blink::WebKeyboardEvent>::FromV8(
v8::Isolate* isolate, v8::Local<v8::Value> val,
blink::WebKeyboardEvent* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
if (!ConvertFromV8(isolate, val, static_cast<blink::WebInputEvent*>(out)))
return false;
std::string str;
if (!dict.Get("keyCode", &str))
return false;
bool shifted = false;
ui::KeyboardCode keyCode = atom::KeyboardCodeFromStr(str, &shifted);
out->windows_key_code = keyCode;
if (shifted)
out->SetModifiers(out->GetModifiers() | blink::WebInputEvent::kShiftKey);
ui::DomCode domCode = ui::UsLayoutKeyboardCodeToDomCode(keyCode);
out->dom_code = static_cast<int>(domCode);
ui::DomKey domKey;
ui::KeyboardCode dummy_code;
int flags = atom::WebEventModifiersToEventFlags(out->GetModifiers());
if (ui::DomCodeToUsLayoutDomKey(domCode, flags, &domKey, &dummy_code))
out->dom_key = static_cast<int>(domKey);
if ((out->GetType() == blink::WebInputEvent::kChar ||
out->GetType() == blink::WebInputEvent::kRawKeyDown)) {
// Make sure to not read beyond the buffer in case some bad code doesn't
// NULL-terminate it (this is called from plugins).
size_t text_length_cap = blink::WebKeyboardEvent::kTextLengthCap;
base::string16 text16 = base::UTF8ToUTF16(str);
memset(out->text, 0, text_length_cap);
memset(out->unmodified_text, 0, text_length_cap);
for (size_t i = 0; i < std::min(text_length_cap, text16.size()); ++i) {
out->text[i] = text16[i];
out->unmodified_text[i] = text16[i];
}
}
return true;
}
bool Converter<content::NativeWebKeyboardEvent>::FromV8(
v8::Isolate* isolate, v8::Local<v8::Value> val,
content::NativeWebKeyboardEvent* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
if (!ConvertFromV8(isolate, val, static_cast<blink::WebKeyboardEvent*>(out)))
return false;
dict.Get("skipInBrowser", &out->skip_in_browser);
return true;
}
v8::Local<v8::Value> Converter<content::NativeWebKeyboardEvent>::ToV8(
v8::Isolate* isolate, const content::NativeWebKeyboardEvent& in) {
mate::Dictionary dict = mate::Dictionary::CreateEmpty(isolate);
if (in.GetType() == blink::WebInputEvent::Type::kRawKeyDown)
dict.Set("type", "keyDown");
else if (in.GetType() == blink::WebInputEvent::Type::kKeyUp)
dict.Set("type", "keyUp");
dict.Set("key", ui::KeycodeConverter::DomKeyToKeyString(in.dom_key));
dict.Set("code", ui::KeycodeConverter::DomCodeToCodeString(
static_cast<ui::DomCode>(in.dom_code)));
using Modifiers = blink::WebInputEvent::Modifiers;
dict.Set("isAutoRepeat", (in.GetModifiers() & Modifiers::kIsAutoRepeat) != 0);
dict.Set("shift", (in.GetModifiers() & Modifiers::kShiftKey) != 0);
dict.Set("control", (in.GetModifiers() & Modifiers::kControlKey) != 0);
dict.Set("alt", (in.GetModifiers() & Modifiers::kAltKey) != 0);
dict.Set("meta", (in.GetModifiers() & Modifiers::kMetaKey) != 0);
return dict.GetHandle();
}
bool Converter<blink::WebMouseEvent>::FromV8(
v8::Isolate* isolate, v8::Local<v8::Value> val, blink::WebMouseEvent* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
if (!ConvertFromV8(isolate, val, static_cast<blink::WebInputEvent*>(out)))
return false;
float x = 0.f;
float y = 0.f;
if (!dict.Get("x", &x) || !dict.Get("y", &y))
return false;
out->SetPositionInWidget(x, y);
if (!dict.Get("button", &out->button))
out->button = blink::WebMouseEvent::Button::kLeft;
float global_x = 0.f;
float global_y = 0.f;
dict.Get("globalX", &global_x);
dict.Get("globalY", &global_y);
out->SetPositionInScreen(global_x, global_y);
dict.Get("movementX", &out->movement_x);
dict.Get("movementY", &out->movement_y);
dict.Get("clickCount", &out->click_count);
return true;
}
bool Converter<blink::WebMouseWheelEvent>::FromV8(
v8::Isolate* isolate, v8::Local<v8::Value> val,
blink::WebMouseWheelEvent* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
if (!ConvertFromV8(isolate, val, static_cast<blink::WebMouseEvent*>(out)))
return false;
dict.Get("deltaX", &out->delta_x);
dict.Get("deltaY", &out->delta_y);
dict.Get("wheelTicksX", &out->wheel_ticks_x);
dict.Get("wheelTicksY", &out->wheel_ticks_y);
dict.Get("accelerationRatioX", &out->acceleration_ratio_x);
dict.Get("accelerationRatioY", &out->acceleration_ratio_y);
dict.Get("hasPreciseScrollingDeltas", &out->has_precise_scrolling_deltas);
#if defined(USE_AURA)
// Matches the behavior of ui/events/blink/web_input_event_traits.cc:
bool can_scroll = true;
if (dict.Get("canScroll", &can_scroll) && !can_scroll) {
out->has_precise_scrolling_deltas = false;
out->SetModifiers(out->GetModifiers() & ~blink::WebInputEvent::kControlKey);
}
#endif
return true;
}
bool Converter<blink::WebFloatPoint>::FromV8(
v8::Isolate* isolate, v8::Local<v8::Value> val, blink::WebFloatPoint* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
return dict.Get("x", &out->x) && dict.Get("y", &out->y);
}
bool Converter<blink::WebPoint>::FromV8(
v8::Isolate* isolate, v8::Local<v8::Value> val, blink::WebPoint* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
return dict.Get("x", &out->x) && dict.Get("y", &out->y);
}
bool Converter<blink::WebSize>::FromV8(
v8::Isolate* isolate, v8::Local<v8::Value> val, blink::WebSize* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
return dict.Get("width", &out->width) && dict.Get("height", &out->height);
}
bool Converter<blink::WebDeviceEmulationParams>::FromV8(
v8::Isolate* isolate, v8::Local<v8::Value> val,
blink::WebDeviceEmulationParams* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
std::string screen_position;
if (dict.Get("screenPosition", &screen_position)) {
screen_position = base::ToLowerASCII(screen_position);
if (screen_position == "mobile")
out->screen_position = blink::WebDeviceEmulationParams::kMobile;
else if (screen_position == "desktop")
out->screen_position = blink::WebDeviceEmulationParams::kDesktop;
else
return false;
}
dict.Get("screenSize", &out->screen_size);
dict.Get("viewPosition", &out->view_position);
dict.Get("deviceScaleFactor", &out->device_scale_factor);
dict.Get("viewSize", &out->view_size);
dict.Get("fitToView", &out->fit_to_view);
dict.Get("offset", &out->offset);
dict.Get("scale", &out->scale);
return true;
}
bool Converter<blink::WebFindOptions>::FromV8(
v8::Isolate* isolate,
v8::Local<v8::Value> val,
blink::WebFindOptions* out) {
mate::Dictionary dict;
if (!ConvertFromV8(isolate, val, &dict))
return false;
dict.Get("forward", &out->forward);
dict.Get("matchCase", &out->match_case);
dict.Get("findNext", &out->find_next);
dict.Get("wordStart", &out->word_start);
dict.Get("medialCapitalAsWordStart", &out->medial_capital_as_word_start);
return true;
}
// static
v8::Local<v8::Value> Converter<blink::WebContextMenuData::MediaType>::ToV8(
v8::Isolate* isolate, const blink::WebContextMenuData::MediaType& in) {
switch (in) {
case blink::WebContextMenuData::kMediaTypeImage:
return mate::StringToV8(isolate, "image");
case blink::WebContextMenuData::kMediaTypeVideo:
return mate::StringToV8(isolate, "video");
case blink::WebContextMenuData::kMediaTypeAudio:
return mate::StringToV8(isolate, "audio");
case blink::WebContextMenuData::kMediaTypeCanvas:
return mate::StringToV8(isolate, "canvas");
case blink::WebContextMenuData::kMediaTypeFile:
return mate::StringToV8(isolate, "file");
case blink::WebContextMenuData::kMediaTypePlugin:
return mate::StringToV8(isolate, "plugin");
default:
return mate::StringToV8(isolate, "none");
}
}
// static
v8::Local<v8::Value> Converter<blink::WebContextMenuData::InputFieldType>::ToV8(
v8::Isolate* isolate,
const blink::WebContextMenuData::InputFieldType& in) {
switch (in) {
case blink::WebContextMenuData::kInputFieldTypePlainText:
return mate::StringToV8(isolate, "plainText");
case blink::WebContextMenuData::kInputFieldTypePassword:
return mate::StringToV8(isolate, "password");
case blink::WebContextMenuData::kInputFieldTypeOther:
return mate::StringToV8(isolate, "other");
default:
return mate::StringToV8(isolate, "none");
}
}
v8::Local<v8::Value> EditFlagsToV8(v8::Isolate* isolate, int editFlags) {
mate::Dictionary dict = mate::Dictionary::CreateEmpty(isolate);
dict.Set("canUndo",
!!(editFlags & blink::WebContextMenuData::kCanUndo));
dict.Set("canRedo",
!!(editFlags & blink::WebContextMenuData::kCanRedo));
dict.Set("canCut",
!!(editFlags & blink::WebContextMenuData::kCanCut));
dict.Set("canCopy",
!!(editFlags & blink::WebContextMenuData::kCanCopy));
bool pasteFlag = false;
if (editFlags & blink::WebContextMenuData::kCanPaste) {
std::vector<base::string16> types;
bool ignore;
ui::Clipboard::GetForCurrentThread()->ReadAvailableTypes(
ui::CLIPBOARD_TYPE_COPY_PASTE, &types, &ignore);
pasteFlag = !types.empty();
}
dict.Set("canPaste", pasteFlag);
dict.Set("canDelete",
!!(editFlags & blink::WebContextMenuData::kCanDelete));
dict.Set("canSelectAll",
!!(editFlags & blink::WebContextMenuData::kCanSelectAll));
return mate::ConvertToV8(isolate, dict);
}
v8::Local<v8::Value> MediaFlagsToV8(v8::Isolate* isolate, int mediaFlags) {
mate::Dictionary dict = mate::Dictionary::CreateEmpty(isolate);
dict.Set("inError",
!!(mediaFlags & blink::WebContextMenuData::kMediaInError));
dict.Set("isPaused",
!!(mediaFlags & blink::WebContextMenuData::kMediaPaused));
dict.Set("isMuted",
!!(mediaFlags & blink::WebContextMenuData::kMediaMuted));
dict.Set("hasAudio",
!!(mediaFlags & blink::WebContextMenuData::kMediaHasAudio));
dict.Set("isLooping",
(mediaFlags & blink::WebContextMenuData::kMediaLoop) != 0);
dict.Set("isControlsVisible",
(mediaFlags & blink::WebContextMenuData::kMediaControls) != 0);
dict.Set("canToggleControls",
!!(mediaFlags & blink::WebContextMenuData::kMediaCanToggleControls));
dict.Set("canRotate",
!!(mediaFlags & blink::WebContextMenuData::kMediaCanRotate));
return mate::ConvertToV8(isolate, dict);
}
v8::Local<v8::Value> Converter<blink::WebCache::ResourceTypeStat>::ToV8(
v8::Isolate* isolate,
const blink::WebCache::ResourceTypeStat& stat) {
mate::Dictionary dict = mate::Dictionary::CreateEmpty(isolate);
dict.Set("count", static_cast<uint32_t>(stat.count));
dict.Set("size", static_cast<double>(stat.size));
dict.Set("liveSize", static_cast<double>(stat.decoded_size));
return dict.GetHandle();
}
v8::Local<v8::Value> Converter<blink::WebCache::ResourceTypeStats>::ToV8(
v8::Isolate* isolate,
const blink::WebCache::ResourceTypeStats& stats) {
mate::Dictionary dict = mate::Dictionary::CreateEmpty(isolate);
dict.Set("images", stats.images);
dict.Set("scripts", stats.scripts);
dict.Set("cssStyleSheets", stats.css_style_sheets);
dict.Set("xslStyleSheets", stats.xsl_style_sheets);
dict.Set("fonts", stats.fonts);
dict.Set("other", stats.other);
return dict.GetHandle();
}
} // namespace mate