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