electron/atom/browser/ui/accelerator_util.cc

219 lines
7.5 KiB
C++
Raw Normal View History

// Copyright (c) 2013 GitHub, Inc. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
2014-03-16 00:30:26 +00:00
#include "atom/browser/ui/accelerator_util.h"
2013-10-21 07:33:19 +00:00
#include <stdio.h>
#include <string>
2014-03-15 08:36:29 +00:00
#include "base/stl_util.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
2014-03-15 08:36:29 +00:00
#include "base/strings/string_util.h"
#include "ui/base/models/simple_menu_model.h"
namespace accelerator_util {
namespace {
// Return key code of the char.
ui::KeyboardCode KeyboardCodeFromCharCode(char c, bool* shifted) {
*shifted = false;
switch (c) {
case 8: case 0x7F: return ui::VKEY_BACK;
case 9: return ui::VKEY_TAB;
case 0xD: case 3: return ui::VKEY_RETURN;
case 0x1B: return ui::VKEY_ESCAPE;
case ' ': return ui::VKEY_SPACE;
2013-10-21 05:46:37 +00:00
case 'a': return ui::VKEY_A;
case 'b': return ui::VKEY_B;
case 'c': return ui::VKEY_C;
case 'd': return ui::VKEY_D;
case 'e': return ui::VKEY_E;
case 'f': return ui::VKEY_F;
case 'g': return ui::VKEY_G;
case 'h': return ui::VKEY_H;
case 'i': return ui::VKEY_I;
case 'j': return ui::VKEY_J;
case 'k': return ui::VKEY_K;
case 'l': return ui::VKEY_L;
case 'm': return ui::VKEY_M;
case 'n': return ui::VKEY_N;
case 'o': return ui::VKEY_O;
case 'p': return ui::VKEY_P;
case 'q': return ui::VKEY_Q;
case 'r': return ui::VKEY_R;
case 's': return ui::VKEY_S;
case 't': return ui::VKEY_T;
case 'u': return ui::VKEY_U;
case 'v': return ui::VKEY_V;
case 'w': return ui::VKEY_W;
case 'x': return ui::VKEY_X;
case 'y': return ui::VKEY_Y;
case 'z': return ui::VKEY_Z;
case ')': *shifted = true; case '0': return ui::VKEY_0;
case '!': *shifted = true; case '1': return ui::VKEY_1;
case '@': *shifted = true; case '2': return ui::VKEY_2;
case '#': *shifted = true; case '3': return ui::VKEY_3;
case '$': *shifted = true; case '4': return ui::VKEY_4;
case '%': *shifted = true; case '5': return ui::VKEY_5;
case '^': *shifted = true; case '6': return ui::VKEY_6;
case '&': *shifted = true; case '7': return ui::VKEY_7;
case '*': *shifted = true; case '8': return ui::VKEY_8;
case '(': *shifted = true; case '9': return ui::VKEY_9;
case ':': *shifted = true; case ';': return ui::VKEY_OEM_1;
case '+': *shifted = true; case '=': return ui::VKEY_OEM_PLUS;
case '<': *shifted = true; case ',': return ui::VKEY_OEM_COMMA;
case '_': *shifted = true; case '-': return ui::VKEY_OEM_MINUS;
case '>': *shifted = true; case '.': return ui::VKEY_OEM_PERIOD;
case '?': *shifted = true; case '/': return ui::VKEY_OEM_2;
case '~': *shifted = true; case '`': return ui::VKEY_OEM_3;
case '{': *shifted = true; case '[': return ui::VKEY_OEM_4;
case '|': *shifted = true; case '\\': return ui::VKEY_OEM_5;
case '}': *shifted = true; case ']': return ui::VKEY_OEM_6;
case '"': *shifted = true; case '\'': return ui::VKEY_OEM_7;
default: return ui::VKEY_UNKNOWN;
}
}
} // namespace
bool StringToAccelerator(const std::string& description,
ui::Accelerator* accelerator) {
if (!IsStringASCII(description)) {
LOG(ERROR) << "The accelerator string can only contain ASCII characters";
return false;
}
2013-10-21 05:46:37 +00:00
std::string shortcut(StringToLowerASCII(description));
std::vector<std::string> tokens;
base::SplitString(shortcut, '+', &tokens);
// Now, parse it into an accelerator.
int modifiers = ui::EF_NONE;
ui::KeyboardCode key = ui::VKEY_UNKNOWN;
for (size_t i = 0; i < tokens.size(); i++) {
// We use straight comparing instead of map because the accelerator tends
// to be correct and usually only uses few special tokens.
if (tokens[i].size() == 1) {
bool shifted = false;
key = KeyboardCodeFromCharCode(tokens[i][0], &shifted);
if (shifted)
modifiers |= ui::EF_SHIFT_DOWN;
} else if (tokens[i] == "ctrl" || tokens[i] == "control") {
modifiers |= ui::EF_CONTROL_DOWN;
} else if (tokens[i] == "cmd" || tokens[i] == "command") {
modifiers |= ui::EF_COMMAND_DOWN;
} else if (tokens[i] == "commandorcontrol" || tokens[i] == "cmdorctrl") {
#if defined(OS_MACOSX)
modifiers |= ui::EF_COMMAND_DOWN;
#else
modifiers |= ui::EF_CONTROL_DOWN;
#endif
2013-10-21 05:46:37 +00:00
} else if (tokens[i] == "alt") {
modifiers |= ui::EF_ALT_DOWN;
2013-10-21 05:46:37 +00:00
} else if (tokens[i] == "shift") {
modifiers |= ui::EF_SHIFT_DOWN;
} else if (tokens[i] == "tab") {
key = ui::VKEY_TAB;
2013-10-21 07:35:54 +00:00
} else if (tokens[i] == "space") {
key = ui::VKEY_SPACE;
} else if (tokens[i] == "backspace") {
key = ui::VKEY_BACK;
} else if (tokens[i] == "delete") {
key = ui::VKEY_DELETE;
} else if (tokens[i] == "enter" || tokens[i] == "return") {
key = ui::VKEY_RETURN;
} else if (tokens[i] == "up") {
key = ui::VKEY_UP;
} else if (tokens[i] == "down") {
key = ui::VKEY_DOWN;
} else if (tokens[i] == "left") {
key = ui::VKEY_LEFT;
} else if (tokens[i] == "right") {
key = ui::VKEY_RIGHT;
} else if (tokens[i] == "home") {
key = ui::VKEY_HOME;
} else if (tokens[i] == "end") {
key = ui::VKEY_END;
} else if (tokens[i] == "pagedown") {
key = ui::VKEY_PRIOR;
} else if (tokens[i] == "pageup") {
key = ui::VKEY_NEXT;
} else if (tokens[i] == "esc") {
key = ui::VKEY_ESCAPE;
} else if (tokens[i] == "volumemute") {
key = ui::VKEY_VOLUME_MUTE;
} else if (tokens[i] == "volumeup") {
key = ui::VKEY_VOLUME_UP;
} else if (tokens[i] == "volumedown") {
key = ui::VKEY_VOLUME_DOWN;
} else if (tokens[i] == "medianexttrack") {
key = ui::VKEY_MEDIA_NEXT_TRACK;
} else if (tokens[i] == "mediaprevioustrack") {
key = ui::VKEY_MEDIA_PREV_TRACK;
} else if (tokens[i] == "mediastop") {
key = ui::VKEY_MEDIA_STOP;
} else if (tokens[i] == "mediaplaypause") {
key = ui::VKEY_MEDIA_PLAY_PAUSE;
2013-10-21 07:33:19 +00:00
} else if (tokens[i].size() > 1 && tokens[i][0] == 'f') {
// F1 - F24.
int n;
2013-10-21 07:54:37 +00:00
if (base::StringToInt(tokens[i].c_str() + 1, &n)) {
2013-10-21 07:33:19 +00:00
key = static_cast<ui::KeyboardCode>(ui::VKEY_F1 + n - 1);
} else {
LOG(WARNING) << tokens[i] << "is not available on keyboard";
return false;
}
} else {
LOG(WARNING) << "Invalid accelerator token: " << tokens[i];
return false;
}
}
if (key == ui::VKEY_UNKNOWN) {
LOG(WARNING) << "The accelerator doesn't contain a valid key";
return false;
}
*accelerator = ui::Accelerator(key, modifiers);
SetPlatformAccelerator(accelerator);
return true;
}
2014-03-15 08:36:29 +00:00
void GenerateAcceleratorTable(AcceleratorTable* table, ui::MenuModel* model) {
int count = model->GetItemCount();
for (int i = 0; i < count; ++i) {
ui::MenuModel::ItemType type = model->GetTypeAt(i);
if (type == ui::MenuModel::TYPE_SUBMENU) {
ui::MenuModel* submodel = model->GetSubmenuModelAt(i);
GenerateAcceleratorTable(table, submodel);
} else {
ui::Accelerator accelerator;
if (model->GetAcceleratorAt(i, &accelerator)) {
MenuItem item = { i, model };
(*table)[accelerator] = item;
}
}
}
}
bool TriggerAcceleratorTableCommand(AcceleratorTable* table,
const ui::Accelerator& accelerator) {
if (ContainsKey(*table, accelerator)) {
const accelerator_util::MenuItem& item = (*table)[accelerator];
item.model->ActivatedAt(item.position);
return true;
} else {
return false;
}
}
} // namespace accelerator_util